CN107733723B

CN107733723B - Double-network wire communication system host

Info

Publication number: CN107733723B
Application number: CN201711188132.1A
Authority: CN
Inventors: 邱燕霖; 谢树滨; 杨术轩; 董梅; 吴戈; 杨术森; 李作明; 刘哲; 张磊; 林琳; 朱媛; 屈长鸣; 朱恩营; 佟美玲; 李慧; 郭洋; 王志
Original assignee: Shenyang Air Traffic Control Technology Development Co ltd
Current assignee: Shenyang Air Traffic Control Technology Development Co ltd
Priority date: 2017-11-22
Filing date: 2017-11-24
Publication date: 2023-10-17
Anticipated expiration: 2037-11-24
Also published as: CN107733723A

Abstract

The invention relates to a double-network wired communication system host, which comprises a plurality of double-network exchange units, wherein the prior messy arrangement mode among the units is clamped together by adopting a temporary clamp to form a temporary whole, so that the problems existing in the past are avoided, and the clamping and loosening can be completed only by rotating a screwing cap when the double-network wired communication system host needs to be maintained or replaced, and the double-network wired communication system host is very convenient to use.

Description

Double-network wire communication system host

Technical Field

The invention provides a wired communication system applied to a civil aviation system, and particularly relates to a host of a double-network wired communication system.

Background

The wired communication system is the most important link in civil aviation production operation, and all the main wired communication equipment in China is imported for a long time, so that a large number of foreign exchange in China is spent, and the imported system also exposes a plurality of problems of small capacity, poor compatibility, single function and the like in use; conventional wired communication systems, however, are not capable of local point-to-multipoint and local and foreign point-to-multipoint communications, such as: in the prior art, the telephones are connected in a one-to-one correspondence manner to perform wired communication, and the telephones form a control seat, so that if wired control is required to be performed on multiple parties, a plurality of telephones are required to be configured at one seat end, the seat configuration is abnormal and complicated, and great inconvenience is brought to use and maintenance. In addition, the traditional communication is single-wire connection, once the connection is interrupted, the paralysis of the whole system is caused, the traditional communication system has single function and small capacity, and the whole host adopts a unified central processing unit, so that once the central processing unit of the host stops working, the paralysis of the rear part system is also caused.

Most of the existing equipment is placed together in a scattered way, so that a large amount of space is occupied, potential safety hazards of wiring are caused, and meanwhile, the equipment is unfavorable for maintenance, repair and maintenance. The situation that a plurality of lines are placed in disorder can occur in many places, and the situation firstly becomes messy and secondly has potential safety hazards.

Disclosure of Invention

The invention aims to: the invention provides a double-network wired communication system host, which aims to solve the problems of complex seat configuration, small capacity, easy damage caused by single-wire connection and inconvenient maintenance of the traditional wired communication system.

The technical scheme is as follows: the invention is realized by the following technical scheme:

a dual-network wired communication system host, characterized by: the host comprises a plurality of double-network switching units, and the plurality of double-network switching units are connected in series through two parallel full-switching networks to form a communication device; the double-network exchange unit mainly comprises an inner line board, an outer line board, a seat board and two exchange boards; the inner line board and the outer line board are respectively connected with two parallel exchange boards through communication network data lines, and the two exchange boards are connected to the seat board through the communication network data lines; the two exchange boards are connected with two parallel full exchange networks.

The wireless board, the inner line board, the outer line board, the seat board and the two exchange boards are respectively arranged in one shell, a plurality of shells are arranged in an array to form a double-network exchange unit, and two adjacent double-network exchange units are clamped and fixed through a multi-directional temporary clamp;

the multi-directional temporary clamp comprises a main clamp and an auxiliary clamp, wherein the main clamp comprises a positioning disc, a clamping plate and a pull rod; the clamping plate comprises a positioning plate and two telescopic clamps, one end of each telescopic clamp is provided with a vertical plate which extends downwards and is at right angles to the telescopic clamp, and the other end of each telescopic clamp extends into the positioning plate and can do telescopic movement relative to the positioning plate;

the two groups of pull rods are respectively arranged, each group of pull rods comprises a front pull rod and a rear pull rod, one end of the front pull rod is provided with a vertical stop for hooking the vertical plate, the other end of the front pull rod is movably connected with the rear pull rod through a rotating shaft, one end of the rear pull rod is movably connected with the front pull rod, and the other end of the rear pull rod is movably arranged on the side wall of the positioning disc; the front pull rod and the rear pull rod form a V-shaped movable connecting arm structure; the two groups of pull rods are respectively arranged at two sides of the positioning disc, and the opening directions of the V-shaped movable connecting arm structures are opposite;

The upper end of the positioning disk is provided with a spinning cap which is coaxial with the positioning disk and can rotate relative to the positioning disk, the bottom end of the spinning cap is connected with a movable tension rod through a stand column, one end of the movable tension rod is movably connected with the stand column, the other end of the movable tension rod is connected to the middle part of the rear tension rod through a tension rotating shaft, and the movable tension rod can rotate by taking the tension rotating shaft as an axis and can also rotate by taking the axis of the stand column as an axis;

the middle part of the screw cap is a hollow groove, the upper part of the positioning disk extends into the hollow groove of the screw cap, a plurality of positioning holes are formed in the side wall of the hollow groove of the screw cap, a plurality of fixing holes with internal threads for inserting fixing bolts are also formed in the positioning disk, and when the screw cap is screwed to a clamping and positioning position, at least one positioning hole corresponds to the fixing hole in the positioning disk;

the auxiliary clamp comprises a base column, an adjusting screw rod with external threads, a fixed transverse plate, two movable vertical plates and two movable clamping plates; the base column passes through the hollow barrel structure of the base column after passing through the spinning screw cap and is fixed with the positioning disc, an internal thread is arranged in the cavity, the lower end of the adjusting screw rod extends into the base column to be in threaded fit with the base column, the upper end of the adjusting screw rod is provided with a connector, the adjusting screw rod can rotate relative to the connector and is fixed relatively between the two axial directions, the fixed transverse plate is a transverse plate connected to the connector through a transverse plate, the movable clamp plate is of an L-shaped structure formed by the transverse plate and the vertical plate, one end of the transverse plate of the movable clamp plate is provided with a limiting sliding block, the two movable clamp plates are arranged on the left side and the right side of the fixed transverse plate, and the limiting sliding blocks of the two movable clamp plates extend into sliding grooves on the fixed transverse plate so that the movable clamp plate can move relative to the fixed transverse plate; the bottom of the transverse plate of the movable clamping plate is connected and linked with the vertical baffle through a connecting rod;

The bottoms of the two movable vertical plates extend into the sliding groove of the fixed transverse plate, and the two movable vertical plates are vertical to the fixed transverse plate; the two movable vertical plates are of a structure capable of moving along the sliding groove, and three spaces for clamping the double-network exchange unit are formed between the two movable vertical plates and between the movable vertical plates and the vertical plates of the movable clamping plate (41).

The two parallel full-exchange networks can adopt local area network VLAN networking, wide area network VPN, DDN special line, wireless network bridge, network cable, twisted pair, optical fiber and coaxial cable.

The double-network exchange unit also comprises a monitoring board, a voice board, a recording board and a magnet board; the monitoring board, the voice board, the recording board and the magnet board are connected with the two exchange boards through two parallel communication networks inside.

The inner line board, the outer line board and the seat board are respectively provided with an audio isolation converter, a digital isolator, two network driving modules, and independent CPU and FPGA; the two network drivers are connected with the CPU through a circuit, the CPU is connected with the FPGA through the circuit, the FPGA is connected with the audio isolation converter through the digital-to-analog converter on one hand, and is directly connected with the digital isolator on the other hand; the digital isolator of the audio isolation converter is connected to an external equipment port, and the two network driving modules are connected to the two exchange boards through communication network data wires.

The exchange board is provided with a plurality of interfaces connected with each functional board and interfaces connected with a full-exchange network, all the interfaces are connected with the exchange unit through the audio isolation converter and the digital isolator, and the exchange unit is connected with the control and routing protocol judging module.

The digital isolator adopts a photoelectric coupler and a relay.

The multiple double-network exchange unit arrays in the communication host are arranged in the shell; the wireless board, the inner line board, the outer line board, the seat board, the monitoring board, the GPS board, the voice board, the recording board, the magnet board and the exchange board in each double-network exchange unit are inserted into the board card slot of the shell, and the exchange board is inserted into two ends of the board card slot.

The inner line board is connected with the through telephone set when in use; the external board is connected with the local telephone or the SPC exchange when in use; the seat plate is connected with the user seat through the seat terminal plate when in use.

A top spring for propping the two telescopic clamps is arranged in the positioning plate; the adjusting screw is provided with a twisting ring which is convenient for twisting.

The front pull rod is connected with the vertical stop through a rotating shaft, the axial direction of the rotating shaft is the same as the vertical stop direction, namely, the rotating shaft is perpendicular to the axial direction of the front pull rod, and the front pull rod can rotate around the rotating shaft.

The bottom of the positioning plate is provided with a sucker which is used for sucking the upper surface of the positioning plate.

The shell of the base column is connected with an oblique extension column, the front end of the oblique extension column is connected with a vertical row type rapid wire binding device through a universal ball head, the vertical row type rapid wire binding device comprises an upper clamping sleeve, a lower positioning seat and a control rod, the upper clamping sleeve comprises two vertical clamping plates and a transverse connecting plate, the two vertical clamping plates are respectively arranged at two ends of the transverse connecting plate to form a U-shaped structure with a downward opening, the vertical clamping plates are perpendicular to the transverse connecting plate, the upper ends of the vertical clamping plates are connected with the transverse connecting plate, and L-shaped clamping legs are arranged at the lower ends of the vertical clamping plates;

a lifting clamping plate is arranged below the transverse connecting plate, namely in a U-shaped structure formed by enclosing the transverse connecting plate and two vertical clamping plates, the lifting clamping plate is of a structure capable of moving up and down along the vertical clamping plates, and an internal thread flange is arranged at the upper end of the lifting clamping plate;

the control rod is of a structure capable of rotating relative to the lifting clamping plate, the control rod is provided with external threads, the lower end of the control rod penetrates through the transverse connecting plate and then stretches into an internal thread flange on the lifting clamping plate and is matched with the internal threads of the internal thread flange, and a stop clamping groove for limiting the control rod shaft to move up and down is formed in the position of the control rod penetrating through the transverse connecting plate;

The two ends of the lifting clamping plate are provided with rotation stopping keys for limiting the rotation of the lifting clamping plate, the rotation stopping keys extend into the vertical limiting sliding grooves on the inner side of the vertical clamping plate to limit the rotation of the vertical clamping plate, and meanwhile, the rotation stopping keys can move up and down along the vertical limiting sliding grooves; the lifting clamping plate is controlled to move up and down through the rotation of the control rod;

the lower positioning seat comprises a positioning chassis and transverse positioning clamping plates arranged at two ends of the positioning chassis, the positioning chassis corresponds to the lifting clamping plates, the positioning clamping plates correspond to the L-shaped clamping legs, and when the lower positioning seat is used, the transverse parts of the L-shaped clamping legs extend into the lower parts of the positioning clamping plates to realize clamping;

the positioning chassis is movably connected with the oblique extension column through a universal ball head.

The upper end face of the positioning clamping plate is flush with the upper surface of the positioning chassis, a plurality of 'factory' -shaped separation positioning pressing plates are arranged on the positioning chassis, the openings of the separation positioning pressing plates face the same sequence, and the openings of the separation positioning pressing plates face the direction of one positioning clamping plate; the separating and positioning pressing plate is of a structure capable of lifting up and down relative to the positioning chassis, and when the electric wire is used, the electric wire is installed into the separating and positioning pressing plate from the side opening of the separating and positioning pressing plate to be fixed.

The separation positioning pressing plate is of a 'factory' -shaped structure formed by a transverse plate and a vertical plate, wherein the vertical plate extends into a vertical notch of the positioning chassis, and the vertical plate can move up and down relative to the vertical notch without separating from the vertical notch.

When the separation positioning pressing plate falls to the lowest point, the transverse plate falls on the upper end surface of the positioning chassis; a tension spring for tensioning the vertical plate downwards is arranged in the vertical notch.

The top of the control rod is provided with a transverse handle which is convenient for controlling rotation.

The advantages and effects: the invention provides a double-network wired communication system host, which connects a plurality of double-network exchange units together to form a communication platform; each double-network exchange unit comprises an inner line board, an outer line board, a seat terminal board, a monitoring board, a voice board, a recording board and a magnet board, and is connected with the two exchange boards through two parallel communication network data lines; the inner line board can be connected with a plurality of through telephones, so that the aim of multi-point communication can be realized through the conversion between seats, and the seat configuration is abnormal, simple and reasonable; in addition, other functional boards are also arranged in the dual-network switching unit, for example: the external board is connected with the local telephone or the program controlled exchange to realize the communication between the system and the external wired telephone; the monitoring board is used for being connected with the monitoring configuration terminal and used for monitoring the safety of the system and sending out an alarm signal; the GPS board is connected with an external clock source to realize clock synchronization; the voice board is used for storing voice information sent to each corresponding functional board of the dual-network switching unit; the sound recording board 12 is used for local sound recording of the remote seat; the magnet plate is used for being connected with a magnet or a power supply telephone. In addition, two full-switching network redundancy operation which are isolated from each other are integrated on each functional board of the double-network switching unit of the system, the system adopts a distributed control structure, a wireless functional board is taken as an example, a central processing unit is not arranged in a host, all functions are controlled by independent CPUs and FPGAs on the functional boards, the distributed control structure can limit faults within a minimum range, and the normal operation of the whole system is not affected by the faults of any functional board, so that the reliability is obviously improved. When the double-network wired network communication system host is used, each double-network exchange unit is used as a unit, and each double-network exchange unit corresponds to one seat and a plurality of wired devices, so that each seat can control wired and other functions in the unit, can realize communication with seats of other units, and can exchange information, and the flexibility of information exchange is greatly improved.

In addition, the invention has the following advantages:

the distributed control structure and the double-network parallel redundancy working mode are adopted, so that data exchange is smooth, the system is stable in operation, no system paralysis phenomenon occurs after the experiment is put into practice, the reliability is obviously improved, and powerful support is provided for guaranteeing flight safety;

when the invention works, external voice information is subjected to analog-to-digital conversion and then is exchanged through the two networks in a data frame format, and the ratio of a designed broadband (10M) to an actually used broadband (128K) reaches 10:0.128, effectively improves the data exchange reliability, and truly realizes non-blocking communication.

The multiple double-network exchange function units (255 maximum and 1023 maximum according to the need) form a double-network wired communication system host through two parallel full-exchange systems. Through two parallel full-exchange networks, not only can a plurality of double-network exchange functional units be connected together, but also a plurality of local or remote double-network wired communication system hosts can be connected together to form a complete double-network full-exchange network communication system, so that resources among different places are utilized more reasonably, the inter-area connection is tighter, and the control and dispatching are safer and more reliable.

The invention adopts two redundant parallel full-exchange network architectures, the double networks work in parallel, the capacity expansion can be conveniently carried out, the land resource utilization is more reasonable, the connection between areas is tighter, the non-blocking communication is truly realized, and the capacity of the system exceeds the maximum capacity of the international similar system by more than 2 times at present.

The invention integrates all the function boards into a full redundant network to work in parallel, provides data exchange capability of not less than 10 Mbs between any two function boards, exchanges among multiple units, and has very strong capacity expansion capability along with the rapid development of the current network technology. Under the exchange capability, the number of various interfaces such as agents, analog users, digital users and the like can be expanded without limit almost, and the system can adopt a rich networking scheme, can realize multi-platform full-function networking among areas, and realizes resource sharing.

In addition, many of the imported device products do not provide data conversion protocols and techniques, and therefore present significant difficulties in multi-system interconnection. The invention adopts different communication protocols, and uses the communication protocols which are developed independently, so that the communication protocols among different systems can be mutually converted, and the communication protocols have strong compatibility with different products.

The invention can be externally connected with various VHF, HF, differential turntable, wireless intercom and various ground wired communication equipment used at present in China, and the normal operation of the equipment is directly related to civil aviation safety production. Once the access device is damaged due to a fault within the system, its loss is immeasurable. Therefore, all the input and output ports are completely isolated when the functional boards of the system are designed. Isolating all audio input and output signals (RX, TX and telephone signals) by an audio isolation transformer; the digital signal (PTT, SQL, ALM) is isolated by a photocoupler and a relay. By adopting the full isolation access mode, the invention can ensure that even if serious faults occur, the access very high frequency equipment and other equipment can not be influenced, and the overall reliability and safety of the available air communication system can be effectively improved.

The invention also adopts an adaptive interface. When external equipment is accessed, the CPU and the FPGA on each functional board can automatically judge the polarity and the level of the signals, and output a standard control signal for processing after the internal polarity and the level are converted. And the output signals of the system are intelligently processed by the functional boards, so that the output signals meet the requirements of access equipment. The processing mode can meet the requirements of the grounding/dry connection points/+5V/+12V/-48V and the like of digital signals, greatly facilitates the connection of very high frequency equipment with different protocols, and improves the adaptability of the system.

The invention adopts independent CPU decentralized control, and each functional board is provided with a high-performance 32-bit intelligent processor (CPU) NIOSII for processing redundant communication protocol, audio acquisition, audio synthesis and other functions. In the whole application and maintenance process, the structure of the distributed control system can limit faults to the minimum range, and the faults of any functional board can not influence the normal operation of the whole system. Compared with a system adopting a traditional core host control mode, the system reliability is further improved, the operation is stable, and powerful support is provided for guaranteeing the flight safety.

The invention adopts the full-switching network technology, and has obvious advantages compared with the traditional PCM switching technology. The comparison of the two techniques is as follows:

the PCM switching technology is a digital signal switching mode before the network technology is perfect, is similar to an analog switch matrix switching mode, and has limitation on switching capacity; the whole network switching technology is a novel digital signal switching technology, is produced along with the rapid development of network technology, has the characteristics of large switching capacity, large transmission broadband, flexible control and the like, and particularly has the characteristics of accurate and timely data transmission in the data switching process by adopting a whole switching network structure of fault-tolerant coding technology, thereby being more in line with the special requirements of the civil aviation industry on the safety and reliability of a communication system.

PCM switching technology adopts a control chip to control the switching on or off of a switching chip channel. The data of the whole exchange network technology is transmitted in frame format, each frame head has a definite destination address, and the exchange chip exchanges data frames according to the destination address. PCM exchanged information makes the processing power dependent on the speed of the processor, whereas full switched networks distribute all signalling processing to each port independent of the speed of the processor.

PCM switching requires a synchronous clock, which would be disabled if lost, whereas full switching networks do not. Full switching network technology may provide more ways of networking than PCM switching technology.

In terms of usage and maintenance. After the invention is adopted, the seats in the communication host are directly connected with the wired board, and the same seat carries out wired communication exchange and control, so that the use and maintenance are simpler and more convenient, the safety is greatly improved, and the flight safety is effectively ensured.

In addition, the board card of the invention can be hot plugged. Any board card (including the exchange board) can be hot-plugged in and out under the power-on running state, so that a user can conveniently maintain under the condition of not influencing the use.

The invention has a comprehensive operation supervision and control platform. The information of any one data in the system can be detected, and the fault can be intelligently judged and the audible and visual alarm can be realized.

And (5) remote maintenance. The system provides a remote dialing maintenance function, and manufacturer maintenance personnel can connect into the system in a dialing mode under the condition of user permission to help users to carry out fault judgment and information configuration.

Full redundancy design of the switching system. Any exchange board can be closed or pulled out for exchange in the use process of the user system, and the normal use of the system is not affected.

The invention can store up to 256 telephone conferences, and 64 members can be accommodated in the group to carry out the conference. The system can conduct the conference in a grading way, and can conduct the conference in a plurality of groups at the same time, and the number of simultaneous speaking persons of each group of conference members can reach 4.

The telephone has a push-to-talk function, namely, a plurality of calling groups can be preset through a telephone conference function, all telephones in the groups can be simultaneously called through one-key operation, and the function has great practicability for navigation notification, notification information release and the like.

The full-exchange network technology of the invention can be interconnected through a plurality of carriers (such as network cables, twisted pair wires, optical fibers, coaxial cables and the like), and has a plurality of mature and stable networking and routing schemes (such as local area network (VLAN) networking, wide area network (VPN), DDN special lines, wireless bridges and the like), and can also be interconnected with internal telephone equipment adopting other communication protocols through a protocol conversion unit by adopting an independently developed communication protocol.

Particularly, the invention clamps the prior messy units together by adopting a temporary clamp to form a temporary whole, so that the problems existing in the past are avoided, and the clamping and loosening can be completed by only rotating the screwing cap when the maintenance or the replacement is needed, and the invention is very convenient to use.

The vertical row type rapid wire binding device adopts the lifting clamping plate to clamp the wires on the positioning chassis in the same direction for temporary fixation, prevents the lines from being staggered and messy, separates adjacent wires by the 'factory' -shaped separation positioning pressing plate, prevents the wires from heating and adhering, well solves the problems existing in the past, and is beneficial to popularization and application.

The invention has simple and reasonable equipment and strong practicability, and is relatively suitable for being applied to the civil aviation field.

Description of the drawings:

FIG. 1 shows a schematic overall structure of the present invention;

fig. 2 shows a schematic block diagram of a dual network switching unit of the present invention;

fig. 3 also shows a schematic diagram of a dual network switching unit of the present invention;

FIG. 4 shows a schematic representation of the exchange medium of the present invention in use;

FIG. 5 shows a block diagram of the structure of the inner wiring board of the present invention;

FIG. 6 shows a circuit board diagram of the inner wiring board of the present invention;

FIG. 7 shows a circuit diagram of the inner wiring board with an audio isolation transducer of the present invention;

FIG. 8 is a schematic diagram showing the overall structure of a communication host according to the present invention;

fig. 9 shows a schematic block diagram of the structure of the exchange plate of the present invention;

FIG. 10 is a schematic view of a multi-directional temporary fixture;

FIG. 11 is a top view of the primary clamp;

FIG. 12 is an enlarged view of portion A of FIG. 10;

FIG. 13 is a schematic view of a vertical row type fast wire harness device;

FIG. 14 is a use state diagram of FIG. 13;

FIG. 15 is a schematic view of the connection of the base post, the diagonally extending post and the universal ball.

The specific embodiment is as follows: the invention is further described with reference to the accompanying drawings:

as shown in fig. 1, the present invention provides a dual-network wired communication system host, where the communication system host includes a plurality of dual-network switching units 2, and the plurality of dual-network switching units 2 are connected together through two parallel full-switching networks 111, and as shown in fig. 4, the full-switching networks 111 may adopt transmission media such as local area network VLAN networking, wide area network VPN, DDN private line, wireless bridge, etc.; the double-network exchange unit 2 mainly comprises an inner wire board 4, an outer wire board 5, a seat board 6, a seat terminal board 7 and two exchange boards 8; as shown in fig. 2, the inner wire board 4 and the outer wire board 5 are connected with two exchange boards 8 through two parallel communication network data wires, and the two exchange boards 8 are connected with the seat board 6 after being connected in parallel; the seat plate 6 is connected with a seat terminal plate 7; that is to say that the inner wire board 4 and the outer wire board 5 are respectively connected with the seat board 6 through two exchange boards 8; the two exchange boards 8 are simultaneously connected with two external full exchange networks 111 respectively; in this way, a plurality of dual network switching units 2 are connected together through the switching board 8 and the full switching network 111. In use, the inner line board 4 is connected with the through telephone set through the external equipment port, the outer line board is also connected with the local telephone set or the program controlled exchange through the external equipment port, the seat terminal board 7 is connected with the user seat, thus, a structural unit for freely controlling the user seat 15 and one or more through telephone sets 16 is formed on each double-network exchange unit 2, the double-network wired communication system host formed after the communication among the double-network exchange units 2 also enables the user seat 15 on the double-network exchange units 2 to be mutually freely communicated, thus, the user seat 15 can control the wired and other functions in the own double-network exchange unit 2, and can also communicate with the user seat 15 on other double-network exchange units 2, or communicate with the wired or other functions on the other double-network exchange units 2, the design enables the configuration of the user seat 15 to be concise and efficient, the double-network wired communication system is not used for configuring the multiple through telephone sets at the user seat 15, and the double-network wired communication system is combined with the host between the user seat 15 and the user seat.

The wireless board 3, the inner line board 4, the outer line board 5, the seat board 6 and the two exchange boards 8 form a double-network exchange unit 2, the wireless board 3, the inner line board 4, the outer line board 5, the seat board 6 and the two exchange boards 8 are respectively arranged in one shell, a plurality of shells are arranged in an array manner to form the double-network exchange unit 2, and two adjacent double-network exchange units 2 are clamped and fixed through a multi-directional temporary clamp;

the multidirectional temporary fixture comprises a main fixture and an auxiliary fixture, wherein the main fixture comprises a positioning disc 25, a clamping plate and a pull rod; the clamping plate comprises a positioning plate 26 and two telescopic clamps 27, one end of each telescopic clamp 27 is provided with a vertical plate 30 which extends downwards and is at right angles to the telescopic clamp 27, and the other end of each telescopic clamp 27 extends into the corresponding positioning plate 26 and can perform telescopic movement relative to the corresponding positioning plate 26;

the two groups of pull rods are respectively arranged, each group of pull rods comprises a front pull rod 28 and a rear pull rod 29, one end of the front pull rod 28 is provided with a vertical stop 31 for hooking the vertical plate 30, the other end of the front pull rod is movably connected with the rear pull rod 29 through a rotating shaft, one end of the rear pull rod 29 is movably connected with the front pull rod 28, and the other end of the rear pull rod 29 is movably arranged on the side wall of the positioning disc 25; the front pull rod 28 and the rear pull rod 29 form a V-shaped movable connecting arm structure; the two groups of pull rods are respectively arranged at two sides of the positioning disk 25, and the opening directions of the V-shaped movable connecting arm structures are opposite;

A spinning cap 32 is arranged at the upper end of the positioning disk 25, the spinning cap 32 is coaxial with the positioning disk 25 and can rotate relative to the positioning disk 25, the bottom end of the spinning cap 32 is connected with a movable tension rod 34 through a stand column 33, one end of the movable tension rod 34 is movably connected with the stand column 33, the other end of the movable tension rod 34 is connected to the middle part of the rear tension rod 29 through a tension rotating shaft, and the movable tension rod 34 can rotate by taking the tension rotating shaft as an axis and can also rotate by taking the axis of the stand column 33 as an axis;

the middle part of the screw cap 32 is a hollow groove, the upper part of the positioning disk 25 extends into the hollow groove of the screw cap 32, a plurality of positioning holes 35 are arranged on the side wall of the hollow groove of the screw cap 32, a plurality of fixing holes with internal threads for inserting fixing bolts are also arranged on the positioning disk 25, and when the screw cap 32 is screwed to a clamping and positioning position, at least one positioning hole 35 corresponds to the fixing hole on the positioning disk 25;

the auxiliary clamp comprises a base column 38, an adjusting screw 39 with external threads, a fixed transverse plate 40, two movable vertical plates 47 and two movable clamping plates 41; the base column 38 passes through the spinning cap 32 and then is fixed with the positioning disk 25, the hollow barrel structure of the base column 38 is provided with internal threads in the cavity, the lower end of the adjusting screw 39 extends into the base column 38 to be matched with the threads of the base column 38, the upper end of the adjusting screw 39 is provided with a connector 42, the adjusting screw 39 can rotate relative to the connector 42 and is fixed relatively between the axial directions, the fixed transverse plate 40 is a transverse plate connected with the connector 42 by a transverse plate, the movable clamping plate 41 is an L-shaped structure formed by the transverse plate and a vertical plate, one end of the transverse plate of the movable clamping plate 41 is provided with a limit sliding block 43, the two movable clamping plates are arranged on the left side and the right side of the fixed transverse plate 40, and the limit sliding blocks 43 of the two movable clamping plates extend into a sliding groove 44 on the fixed transverse plate 40 so that the movable clamping plate 41 can move relative to the fixed transverse plate 40; the bottom of the transverse plate of the movable clamping plate 41 is connected and linked with the vertical stop 31 through a connecting rod 45;

The bottoms of the two movable vertical plates 47 extend into the sliding grooves 44 of the fixed transverse plate 40, and the two movable vertical plates 47 are perpendicular to the fixed transverse plate 40; the two movable risers 47 are movable along the chute 44, and three spaces for clamping the dual network switching unit 2 are formed between the two movable risers 47 and between the movable risers 47 and the risers of the movable clamping plate 41.

A top spring 36 for propping the two telescopic clamps 27 is arranged in the positioning plate 26; a turning ring 46 for facilitating turning is provided on the adjusting screw 39.

The front pull rod 28 is connected with the vertical stop 31 through a rotating shaft, the axial direction of the rotating shaft is the same as the vertical stop direction, namely, the rotating shaft is perpendicular to the axial direction of the front pull rod 28, and the front pull rod 28 can rotate around the rotating shaft.

The bottom of the positioning plate 25 is provided with a sucker 37 which sucks the upper surface of the positioning plate 26 in use.

When the multidirectional temporary clamp is used, a plurality of units with shells such as a wireless plate 3, an inner wire plate 4, an outer wire plate 5, a seat plate 6 and two exchange plates 8 are arranged together in an array manner as shown in fig. 10, then the vertical plates 30 of the telescopic clamp 27 of the main clamp the two sides with the shells together, the other three groups of double-network exchange units 2 are respectively arranged between the left movable clamping plate 41 and the left movable vertical plate 47, between the two movable clamping plates 47 and between the right movable clamping plate 47 and the right movable clamping plate 41 from left to right as shown in fig. 10, then the movable tensioning rods 34 are driven to move by the rotating twisting caps 32, and then the rear pulling rods 29 are pulled, so that the front pulling rods 28 are tensioned, the vertical stops 31 are tightly propped against the vertical plates 30 on the two sides, meanwhile, the movable clamping plates 41 are also inwards tightened under the driving of the vertical stops 31 to respectively clamp the other three groups of double-network exchange units 2, and then the whole double-network exchange units are screwed into the fixed bolts through the fixing bolts, and the fixing bolts can be removed by screwing out and fixing the fixing bolts 36 when the fixing bolts are needed to be removed by screwing out through fixing holes after the fixing bolts 3. The use is very convenient and the effect is ideal. By rotating the turning ring 46 to rotate the adjusting screw 39, the distance that the adjusting screw 39 extends into the positioning disk 25 is changed, and the distance between the main clamp and the auxiliary clamp is adjusted to adapt to different application occasions.

The shell of the base column 38 is connected with an oblique extension column 48, the front end of the oblique extension column 48 is connected with a vertical row type quick wire binding device through a universal ball head 66, the universal ball head is used for adjusting the angle of the vertical row type quick wire binding device at multiple angles, the vertical row type quick wire binding device comprises an upper clamping sleeve 49, a lower positioning seat 50 and a control rod 55, the upper clamping sleeve 49 comprises two vertical clamping plates 51 and a transverse connecting plate 52, the two vertical clamping plates 51 are respectively arranged at two ends of the transverse connecting plate 52 to form a U-shaped structure with a downward opening, the vertical clamping plates 51 are perpendicular to the transverse connecting plate 52, the upper ends of the vertical clamping plates 51 are connected with the transverse connecting plate 52, and L-shaped clamping pins 53 are arranged at the lower ends of the vertical clamping plates 51;

a lifting clamping plate 54 is arranged below the transverse connecting plate 52, namely in a U-shaped structure formed by closing the transverse connecting plate 52 and the two vertical clamping plates 51, the lifting clamping plate 54 is of a structure capable of moving up and down along the vertical clamping plates 51, and an internal thread flange is arranged at the upper end of the lifting clamping plate 54;

the control rod 55 is of a structure capable of rotating relative to the lifting clamping plate 54, the control rod 55 is provided with external threads, the lower end of the control rod 55 penetrates through the transverse connecting plate 52 and then extends into an internal thread flange on the lifting clamping plate 54 and is matched with the internal thread flange in an internal thread way, and a stop clamping groove 56 for limiting the control rod 55 to axially move up and down is formed in the position of the control rod 55 penetrating through the transverse connecting plate 52;

The two ends of the lifting clamping plate 54 are provided with rotation stopping keys 57 for limiting the rotation of the lifting clamping plate 54, the rotation stopping keys 57 extend into vertical limiting sliding grooves 58 on the inner side of the vertical clamping plate 51 to limit the rotation of the vertical clamping plate 51, and meanwhile, the rotation stopping keys 57 can move up and down along the vertical limiting sliding grooves 58; the lifting clamping plate 54 is controlled to move up and down by the rotation of the control rod 55;

the lower positioning seat 50 comprises a positioning chassis 59 and transverse positioning clamping plates 60 arranged at two ends of the positioning chassis 59, the positioning chassis 59 corresponds to the lifting clamping plate 54, the positioning clamping plates 60 correspond to the L-shaped clamping legs 53, and when the lower positioning seat is used, the transverse parts of the L-shaped clamping legs 53 extend into the lower parts of the positioning clamping plates 60 to realize clamping;

the positioning chassis 59 is movably connected with the oblique extension column 48 through a universal ball head.

The upper end surface of the positioning clamping plate 60 is flush with the upper surface of the positioning chassis 59, a plurality of 'factory' -shaped separation positioning pressing plates 62 are arranged on the positioning chassis 59, the openings of the separation positioning pressing plates 62 face the same sequential arrangement, and the opening of the separation positioning pressing plate 62 faces the direction in which one positioning clamping plate 60 is positioned; the partition positioning plate 62 has a structure capable of being lifted up and down relative to the positioning chassis 59, and when in use, the electric wires are inserted into the partition positioning plate 62 from the side opening of the partition positioning plate 62 and fixed.

The partition positioning press plate 62 is of a "factory" shape structure composed of a cross plate and a vertical plate, wherein the vertical plate extends into the vertical notch 61 of the positioning chassis 59, and the vertical plate can move up and down relative to the vertical notch 61 without being separated from the vertical notch 61.

When the partition positioning pressing plate 62 falls to the lowest point, the cross plate falls on the upper end face of the positioning chassis 59; a tension spring 64 is provided in the vertical slot 61 to pull down the riser.

The top end of the control lever 55 is provided with a transverse handle 63 that facilitates control of rotation.

When the device is used, the separation positioning pressing plate 62 can be arranged, the separation positioning pressing plate 62 can be not arranged, and when the separation positioning pressing plate 62 is not arranged, the lifting clamping plate 54 is directly pressed on the electric wire, so that smooth arrangement is realized;

when the separation positioning pressing plate 62 is configured, the separation positioning pressing plate 62 is lifted upwards, then the circuits 65 are placed in the separation positioning pressing plates 62, a plurality of circuits 65 are sequentially placed in each separation positioning pressing plate 62 according to the method, at the moment, wires are separated and arranged by the vertical plates of the separation positioning pressing plates 62 to prevent heat adhesion when being mutually clung, then under the action of the tension springs 64, the separation positioning pressing plates 62 have downward pressure on the circuits 65 to realize first-stage compression fixation, then the L-shaped clamping feet 53 are inserted from one end of the positioning clamping plates 60, namely aligned and then inserted in the direction perpendicular to the drawing surface, thereby completing the relative fixation between the vertical clamping plates 51 and the positioning chassis 59, then the control rods 55 are rotated to enable the lifting clamping plates 54 to move towards the direction of the separation positioning pressing plates 62 until the lifting clamping plates 54 press the separation positioning pressing plates 62 to realize second-stage compression, at the moment, the wires are well smoothed out and are sequentially arranged in the axial parallel direction, after the use or when the circuits need to be replaced, the control rods 55 are reversely rotated, the lifting clamping plates 54 are enabled to move upwards and leave the positioning clamping plates 60, then the L-shaped clamping plates 62 are removed from the two ends, and the wire can be lifted upwards after the lifting clamping plates are lifted upwards.

The device can smooth and classify various circuits well. Prevent mess and line adhesion.

As shown in fig. 2, the dual-network exchange unit 2 further includes a monitor board 9, a voice board 11, a recording board 12 and a magnet board 13; the monitoring board 9, the GPS board 10, the voice board 11, the recording board 12 and the magnet board 13 are connected with the two exchange boards 8 through two internal communication networks 222; in use, the monitor board 9 is used for connecting with a monitor configuration terminal; the voice board 11 is used for storing voice information sent to each corresponding function board of the dual-network switching unit 2; the sound recording board 12 is used for local sound recording of the remote seat; the magnet plate 13 is used for being connected with a magnet or a power supply telephone;

the inner line board 4, the outer line board 5, the seat board 6, the monitoring board 9, the voice board 11, the recording board 12 and the magnet board 13 are respectively provided with an audio isolation converter, a digital isolator, two network driving modules 20, an independent CPU and an independent FPGA; as shown in fig. 5 and 6, taking the inner line board 4 as an example, the audio isolation converter, the digital isolator, the two network driving modules 20, the independent CPU 18 and the FPGA 19 are all arranged on the printed circuit board, and the network driving modules 20 are connected with two parallel communication network data lines inside and further connected to the switch board 8; the two network driving modules 20 are connected with a CPU through a circuit, the CPU is connected with an FPGA through the circuit, and the CPU and the FPGA form a control unit; the FPGA 19 is connected to the audio isolation converter through two digital-to-analog converters 22 with opposite conversion directions, and to the digital isolator, and the audio isolation converter and the digital isolator are connected to the external device port; the audio data is transmitted to the CPU and the FPGA for processing after passing through the audio isolation converter and the digital isolator; the digital isolator can adopt a photoelectric coupler or a relay; the FPGA is a field programmable gate array.

As shown in fig. 8, the plurality of dual-network switching units 2 in the communication host 1 are arranged in the housing 14; the inner line board 4, the outer line board 5, the seat board 6, the monitoring board 9, the voice board 11, the recording board 12, the magnet board 13 and the exchange board 8 in each double-network exchange unit 2 are all inserted into the board card slot 24 of the shell 14, and the exchange board 8 is inserted into two ends of the board card slot 24; various external devices including a user seat 15, a through phone 16, a VHF station 17, and the like are directly connected to the function boards corresponding to the respective two-network switching units 2 in the housing 14 through wires.

As shown in fig. 9, in order to provide a simple block diagram of the switching board 8, a plurality of ports are provided on the switching board 8 for corresponding connection to the respective function boards and the full switching network 111. Each port of the exchange board 8 is connected to an exchange unit through an audio isolation converter and a digital isolator, and the exchange unit is connected with a control and land protocol judging module; the information is separated by the digital and audio frequency through the corresponding port, then enters the exchange unit and the control and terrestrial protocol judging module for processing, and then is transmitted. The information in the exchange board 8 enters the exchange unit, the control and land-based protocol judging module for processing after being isolated by digital and audio, and then is transmitted to each functional board.

As also shown in fig. 5, 6 and 7, the construction principle of the inner wire board 4 is shown. Fig. 3 is a simplified block diagram of the connection form of the present invention, which shows the connection between each functional board and the power supply, and the connection between each functional board and the power supply is the same as that of the conventional known circuit board, and will not be described herein.

In addition, the system can be externally connected with various ground wired communication devices used in China at present, and the normal operation of the devices is directly related to civil aviation safety production. Once the access device is damaged due to a fault within the system, its loss is immeasurable. Therefore, all the input and output ports are completely isolated when the functional boards of the system are designed. Isolating all audio input and output signals (RX, TX and telephone signals) by an audio isolation transformer; the digital signal (PTT, SQL, ALM) is isolated by digital isolators, i.e., photocouplers and relays. By adopting the full isolation access mode, even if the system has serious faults, the system can not generate any influence on the accessed very high frequency equipment and the like, and the overall reliability and safety of the available air communication system are effectively improved.

The interface of the host of the double-network wired communication system adopts self-adaption. When external equipment is accessed, the CPU and the FPGA on each functional board can automatically judge the polarity and the level of the signals, and output a standard control signal for processing after the internal polarity and the level are converted. And the output signals of the system are intelligently processed by the functional boards, so that the output signals meet the requirements of access equipment. The processing mode can meet the requirements of the grounding/dry connection points/+5V/+12V/-48V and the like of digital signals, greatly facilitates the connection of very high frequency equipment with different protocols, and improves the adaptability of the system.

When the invention is used, information is collected through each functional board, and then information exchange between each double-network exchange unit 2 in the double-network wired communication system host is realized through the exchange board 8 and two parallel full-exchange networks 111, so that the multi-platform full-functional networking between areas is realized, and resource sharing between platforms of the double-network exchange units 2 is realized.

The platform architecture of the double-network full-exchange network communication system host adopts the full-exchange network technology, and has obvious advantages compared with the traditional PCM exchange technology. PCM circuit switched hardware design and full switched network hardware design are shown.

The comparison of the two techniques is as follows:

PCM switching requires a synchronous clock, which would be disabled if lost, whereas full switching networks do not.

Full switching network technology may provide more ways of networking than PCM switching technology.

After the host computer of the double-network wired communication system is adopted, the user seat 15 is directly connected with the inner line board 4 in the host computer through the exchange board 8, and the through telephone 16 is connected with the inner line board 4, so that the same user seat 15 can carry out wired communication with a plurality of through telephones 16, the use and maintenance are simpler and more convenient, the safety is greatly improved, and the flight safety is effectively ensured.

The functional boards of each double-network exchange unit 2 in the double-network wired communication system host are integrated with two fully-exchanged network redundant operations which are isolated from each other, as shown in fig. 3, which is a double-network exchange unit composition consisting of basic two networks and a plurality of functional boards.

When the double-network wired communication system host is applied, external voice information is subjected to analog-to-digital conversion through a corresponding function board, and then is exchanged through the two networks in a data frame format, and the ratio of a designed broadband (10M) to an actually used broadband (128K) reaches 10:0.128, effectively improves the data exchange reliability, and truly realizes non-blocking communication.

The double-network wired communication system host adopts a redundant full-exchange network architecture, double networks work in parallel, capacity expansion can be conveniently carried out, for example, a plurality of double-network exchange units 2 can be increased, more user seats are increased, resource utilization is more reasonable, the connection between areas is more compact, non-blocking communication is truly realized, and the capacity of the system host exceeds the maximum capacity of an international similar system by more than 2 times at present.

The function boards of the double-network wired communication system host integrate full-redundancy network parallel operation, and data exchange capacity of not less than 10 Mcbs is provided between any two function boards; if a plurality of the double-network wired communication system hosts of the invention are required to be connected, two parallel full-exchange networks 111 can be utilized to exchange information among multiple units, and 100M and 1000M exchange rates can be provided, so that when two identical double-network wired communication system hosts are arranged at different places and are connected through the two full-exchange networks 111, the information exchange in different places can be realized; with the rapid development of the current network technology, the host of the dual-network wired communication system has very strong capacity expansion capability. The number of various interfaces such as agents, analog users, digital users, etc. can be expanded with little restriction under such exchange capability.

With the construction of large area pipes in the air traffic control field, the extension of an airline company base and the integration of airport group companies, the regional networking requirement on voice tone management is more and more urgent, and the development of the host computer of the double-network wired communication system successfully solves the problem and adopts a rich networking scheme; and the user seat 15 in the remote double-network wired communication system host can utilize the transmission medium to realize the networking with the remote internal telephone system through the exchange network. As shown in fig. 4, the transmission medium includes an optical fiber, a coaxial cable, a twisted pair, a VLAN, a VPN, a protocol conversion ATS-QSIG, no.7, and a wireless bridge.

Because different hosts of the dual-network wired communication system adopt different communication protocols, and many imported products do not provide data conversion protocols and technologies, great difficulty exists in interconnection of multiple systems. The communication protocol independently developed by the host of the double-network full-exchange network communication system can enable the communication protocols among the hosts of different double-network full-exchange network communication systems to be mutually converted, and has strong compatibility with different products.

The host computer of the double-network wired communication system adopts independent CPU decentralized control, and each functional board of the double-network exchange unit 2 is provided with a high-performance 32-bit intelligent processor (CPU) NIOSII which is used for processing redundant communication protocols, audio acquisition, audio synthesis and other functions. In the whole application and maintenance process, the structure of the distributed control system can limit faults to the minimum range, and the faults of any functional board can not influence the normal operation of the whole system. Compared with a system adopting a traditional core host control mode, the system reliability is further improved, the operation is stable, and powerful support is provided for guaranteeing the flight safety.

The invention also has maintainability, and is specifically characterized in the following points:

1. the board card is hot plugged. Any board card (including the exchange board) can be hot-plugged in and out under the power-on running state, so that a user can conveniently maintain under the condition of not influencing the use.

2. And (5) comprehensively operating a supervision and control platform. The information of any one data in the system can be detected, and the fault can be intelligently judged and the audible and visual alarm can be realized.

3. And (5) remote maintenance. The system provides a remote dialing maintenance function, and manufacturer maintenance personnel can connect into the system in a dialing mode under the condition of user permission to help users to carry out fault judgment and information configuration.

4. Full redundancy design of the switching system. Any exchange board can be closed or pulled out for exchange in the use process of the user system, and the normal use of the system is not affected.

The double-network wired communication system host machine comprises a plurality of double-network switching units, and each double-network switching unit is provided with a seat and a plurality of through telephones connected with the seat, so that the double-network full-switching network communication system host machine can also realize telephone conferences with 256 x 64 member capacities, and can store up to 256 telephone conference groups, and 64 members can be accommodated in the groups for conference. The system can conduct the conference in a grading way, and can conduct the conference in a plurality of groups at the same time, and the number of simultaneous speaking persons of each group of conference members can reach 4. By means of the telephone conference function, a plurality of call groups can be preset, all telephones in the groups can be simultaneously called through one-key operation, and the function has high practicability for navigation notification, notification information release and the like.

Claims

1. A dual-network wired communication system host, characterized by: the host comprises a plurality of double-network switching units (2), and the plurality of double-network switching units (2) are connected in series through two parallel full-switching networks (111) to form a communication device; the double-network exchange unit (2) mainly comprises an inner line board (4), an outer line board (5), a seat board (6) and two exchange boards (8); the inner line board (4) and the outer line board (5) are respectively connected into two parallel exchange boards (8) through communication network data lines, and the two exchange boards (8) are connected to the seat board (6) through the communication network data lines; the two exchange boards (8) are connected with two parallel full exchange networks (111);

the wireless board (3), the inner wire board (4), the outer wire board (5), the seat board (6) and the two exchange boards (8) form a double-network exchange unit (2), the wireless board (3), the inner wire board (4), the outer wire board (5), the seat board (6) and the two exchange boards (8) are respectively arranged in one shell, a plurality of shells are arranged in an array manner to form the double-network exchange unit (2), and two adjacent double-network exchange units (2) are clamped and fixed through a multi-directional temporary clamp;

The multidirectional temporary clamp comprises a main clamp and an auxiliary clamp, wherein the main clamp comprises a positioning disc (25), a clamping plate and a pull rod; the clamping plate comprises a positioning plate (26) and two telescopic clamps (27), one end of each telescopic clamp (27) is provided with a vertical plate (30) which extends downwards and is at right angles to the corresponding telescopic clamp (27), and the other end of each telescopic clamp (27) extends into the corresponding positioning plate (26) and can move in a telescopic manner relative to the corresponding positioning plate (26);

the two groups of pull rods are respectively arranged, each group of pull rods comprises a front pull rod (28) and a rear pull rod (29), one end of the front pull rod (28) is provided with a vertical baffle (31) for hooking the vertical plate (30), the other end of the front pull rod is movably connected with the rear pull rod (29) through a rotating shaft, one end of the rear pull rod (29) is movably connected with the front pull rod (28), and the other end of the rear pull rod (29) is movably arranged on the side wall of the positioning disc (25); the front pull rod (28) and the rear pull rod (29) form a V-shaped movable connecting arm structure; the two groups of pull rods are respectively arranged at two sides of the positioning disc (25) and the opening directions of the V-shaped movable connecting arm structures are opposite;

a spinning twisting cap (32) is arranged at the upper end of the positioning disk (25), the spinning twisting cap (32) is coaxial with the positioning disk (25) and can rotate relative to the positioning disk (25), the bottom end of the spinning twisting cap (32) is connected with a movable tensioning rod (34) through a stand column (33), one end of the movable tensioning rod (34) is movably connected with the stand column (33), the other end of the movable tensioning rod is connected to the middle part of a rear pull rod (29) through a tensioning rotating shaft, and the movable tensioning rod (34) can rotate by taking the tensioning rotating shaft as an axis and also can rotate by taking the axis of the stand column (33) as an axis;

The middle part of the turning cap (32) is a hollow groove, the upper part of the positioning disk (25) extends into the hollow groove of the turning cap (32), a plurality of positioning holes (35) are formed in the side wall of the hollow groove of the turning cap (32), a plurality of fixing holes with internal threads for inserting fixing bolts are also formed in the positioning disk (25), and when the turning cap (32) is turned to a clamping and positioning position, at least one positioning hole (35) corresponds to the fixing hole in the positioning disk (25);

the auxiliary clamp comprises a base column (38), an adjusting screw rod (39) with external threads, a fixed transverse plate (40), two movable vertical plates (47) and two movable clamping plates (41); the base column (38) passes through the spinning screw cap (32) and then is fixed between the base column (38) and the positioning disc (25), the base column (38) is of a hollow barrel structure, an internal thread is arranged in a cavity, the lower end of the adjusting screw (39) stretches into the base column (38) to be in threaded fit with the base column (38), a connector (42) is arranged at the upper end of the adjusting screw (39), the adjusting screw (39) can rotate relative to the connector (42) and is fixed relatively between the axial directions, a fixed transverse plate (40) is arranged at the upper end of the connector (42), the movable clamp plate (41) is of an L-shaped structure formed by the transverse plate and the vertical plate, a limit slider (43) is arranged at one end of the transverse plate of the movable clamp plate (41), the two movable clamp plates are arranged at the left side and the right side of the fixed transverse plate (40), and the limit sliders (43) of the two movable clamp plates stretch into the sliding grooves (44) on the fixed transverse plate (40) to enable the movable clamp plate (41) to move towards two sides relative to the fixed transverse plate (40); the bottom of the transverse plate of the movable clamping plate (41) is connected and linked with the vertical stop (31) through a connecting rod (45);

The bottoms of the two movable vertical plates (47) extend into the sliding groove (44) of the fixed transverse plate (40), and the two movable vertical plates (47) are perpendicular to the fixed transverse plate (40); the two movable vertical plates (47) are of a structure capable of moving along the sliding groove (44), and three spaces for clamping the double-network exchange unit (2) are formed between the two movable vertical plates (47) and between the movable vertical plates (47) and the vertical plates of the movable clamping plates (41);

two parallel full-exchange networks (111) adopt local area network VLAN networking, wide area network VPN, DDN special line, wireless network bridge, network cable, twisted pair, optical fiber or coaxial cable; the double-network exchange unit (2) further comprises a monitoring board (9), a voice board (11), a recording board (12) and a magnet board (13); the monitoring board (9), the voice board (11), the recording board (12) and the magnet board (13) are connected with the two exchange boards (8) through two parallel communication networks (222) inside; the inner line board (4), the outer line board (5) and the seat board (6) are respectively provided with an audio isolation converter, a digital isolator, two network driving modules, an independent CPU and an independent FPGA; the two network drivers are connected with the CPU through a circuit, the CPU is connected with the FPGA through the circuit, the FPGA is connected with the audio isolation converter through the digital-to-analog converter on one hand, and is directly connected with the digital isolator on the other hand; the audio isolation converter digital isolator is connected to an external equipment port, and the two network driving modules are connected to the two exchange boards (8) through communication network data lines;

A top spring (36) for propping the two telescopic clamps (27) is arranged in the positioning plate (26); a turning ring (46) which is convenient for turning is arranged on the adjusting screw (39).

2. The dual-network cable communication system host as claimed in claim 1, wherein: the exchange board is provided with a plurality of interfaces connected with each functional board and interfaces connected with a full-exchange network (111), all interfaces are connected with an exchange unit through an audio isolation converter and a digital isolator, and the exchange unit is connected with a control and routing protocol judging module; the digital isolator adopts a photoelectric coupler and a relay; the plurality of double-network exchange units (2) in the communication host (1) are arranged in the shell (14); the wireless board (3), the inner line board (4), the outer line board (5), the seat board (6), the monitoring board (9), the GPS board (10), the voice board (11), the recording board (12), the magnet board (13) and the exchange board (8) in each double-network exchange unit (2) are all inserted into the board card slot (15) of the shell (14), and the exchange board (8) is inserted into two ends of the board card slot (15); the inner line board (4) is connected with the through telephone set when in use; the external board (5) is connected with a local telephone or a program controlled exchange when in use; the seat plate (6) is connected with the seat of the user through a seat terminal plate (7) when in use.

3. The dual-network cable communication system host as claimed in claim 1, wherein: the front pull rod (28) is connected with the vertical stop (31) through a rotating shaft, the axial direction of the rotating shaft is the same as the vertical stop direction, namely, the rotating shaft is perpendicular to the axial direction of the front pull rod (28), and the front pull rod (28) can rotate around the rotating shaft.

4. The dual-network cable communication system host as claimed in claim 1, wherein: the bottom of the positioning plate (25) is provided with a sucker (37) which sucks the upper surface of the positioning plate (26) when in use.

5. The dual-network cable communication system host as claimed in claim 1, wherein: the shell of the base column (38) is connected with an oblique extension column (48), the front end of the oblique extension column (48) is connected with a vertical row type quick wire binding device through a universal ball head (66), the vertical row type quick wire binding device comprises an upper clamping sleeve (49), a lower positioning seat (50) and a control rod (55), the upper clamping sleeve (49) comprises two vertical clamping plates (51) and a transverse connecting plate (52), the two vertical clamping plates (51) are respectively arranged at two ends of the transverse connecting plate (52) to form a U-shaped structure with a downward opening, the vertical clamping plates (51) are perpendicular to the transverse connecting plate (52), the upper end of each vertical clamping plate (51) is connected with the transverse connecting plate (52), and L-shaped clamping pins (53) are arranged at the lower end of each vertical clamping plate (51);

A lifting clamping plate (54) is arranged below the transverse connecting plate (52), namely in a U-shaped structure formed by closing the transverse connecting plate (52) and the two vertical clamping plates (51), the lifting clamping plate (54) is of a structure capable of moving up and down along the vertical clamping plates (51), and an internal thread flange is arranged at the upper end of the lifting clamping plate (54);

the control rod (55) is of a structure capable of rotating relative to the lifting clamping plate (54), the control rod (55) is provided with external threads, the lower end of the control rod (55) penetrates through the transverse connecting plate (52) and then stretches into an internal thread flange on the lifting clamping plate (54) to be matched with the internal threads of the internal thread flange, and a stop clamping groove (56) for limiting the control rod (55) to move up and down axially is formed in the position of the control rod (55) penetrating through the transverse connecting plate (52);

the two ends of the lifting clamping plate (54) are provided with rotation stopping keys (57) for limiting the rotation of the lifting clamping plate (54), the rotation stopping keys (57) extend into vertical limiting sliding grooves (58) on the inner side of the vertical clamping plate (51) to limit the rotation of the vertical clamping plate (51), and meanwhile, the rotation stopping keys (57) can move up and down along the vertical limiting sliding grooves (58); the lifting clamping plate (54) is controlled to move up and down through the rotation of the control rod (55);

The lower positioning seat (50) comprises a positioning chassis (59) and transverse positioning clamping plates (60) arranged at two ends of the positioning chassis (59), the positioning chassis (59) corresponds to the lifting clamping plates (54), the positioning clamping plates (60) correspond to the L-shaped clamping legs (53), and when the lower positioning seat is used, the transverse parts of the L-shaped clamping legs (53) extend into the lower parts of the positioning clamping plates (60) to realize clamping;

the positioning chassis (59) is movably connected with the oblique extending column (48) through a universal ball head.

6. The dual-network cable communication system host as claimed in claim 1, wherein: the upper end face of the positioning clamping plate (60) is flush with the upper surface of the positioning chassis (59), a plurality of 'factory' -shaped separation positioning pressing plates (62) are arranged on the positioning chassis (59), the openings of the separation positioning pressing plates (62) face the same sequential arrangement, and the opening of the separation positioning pressing plate (62) faces the direction in which one positioning clamping plate (60) is located; the separation positioning pressing plate (62) has a structure capable of lifting up and down relative to the positioning chassis (59), and when the electric wire is used, the electric wire is installed into the separation positioning pressing plate (62) from the side opening of the separation positioning pressing plate (62) to be fixed.

7. The dual-network cable communication system host as claimed in claim 6, wherein: the separating and positioning pressing plate (62) is of a 'factory' -shaped structure formed by a transverse plate and a vertical plate, wherein the vertical plate extends into a vertical notch (61) of the positioning chassis (59), and can move up and down relative to the vertical notch (61) without being separated from the vertical notch (61).

8. The dual-network cable communication system host as claimed in claim 7, wherein: when the separation positioning pressing plate (62) falls to the lowest point, the transverse plate falls on the upper end surface of the positioning chassis (59); a tension spring (64) for tensioning the vertical plate downwards is arranged in the vertical notch (61).