KR101607958B1 - relay system between cab of ERTMS applied railway vehicle and the signal processing method - Google Patents

Abstract

The present invention relates to an inter-cabin relay system and a signal processing method of an ERTMS applied railway vehicle, and more particularly, to a balis antenna installed in a cab of a cab by a digital communication method between a balise antenna and a BTM, And the BTM2 of the opposite cab is interchanged so that the cabin can be configured as a two-relay system, and a signal processing method of the system.
An inter-cabin relay system of an ERTMS-applied railway vehicle according to an embodiment of the present invention includes: an on-board signal device provided in each of two cabs of a train; A BTM connected to the onboard signaling device via a digital transmission line; A balis antenna installed at one of the busses of each of the cabins and connected to the BTM1 of the cabin and the BTM2 of the cabin of the opposite cabin through the digital transmission line; And a balis provided in the line at a predetermined interval to wirelessly communicate with the balis antenna; .

Description

Technical Field [0001] The present invention relates to an inter-cabin relay system and a signal processing method of an ERTMS applied railway vehicle,

The present invention relates to an inter-cabin relay system and a signal processing method of an ERTMS applied railway vehicle, and more particularly, to a balis antenna installed in a cab of a cab by a digital communication method between a balise antenna and a BTM, And the BTM2 of the opposite cab is interchanged so that the cabin can be configured as a two-relay system, and a signal processing method of the system.

The European Railway Traffic Management System (ERTMS) / European Train Control System (ETCS) (hereinafter referred to as "ERTMS") integrates different signal systems in Europe and standardizes them It was established to enhance competitiveness of railway system by maximizing interoperability, railway efficiency and safety. It started as a European standard in the beginning, but it is now becoming an international standard.

These ERTMSs help establish international standards for systems that automatically control trains, and in particular, enable cross-border transit to be used in common, common use of regional traffic control systems, To increase the density of trains traffic and the level of stability.

The realization of ERTMS is categorized into Level 1, Level 2, and Level 3 in functional aspects considering current technology limit and possible future technology development ability.

The ERTMS level 1 depends on the fixed occlusion system and the ground signaling device.

This means that a loop that transmits discontinuous information in the same form as an existing ATP (Automatic Train Protection) or a semi-continuous information transmission loop transmits information from the trajectory to the train for speed control of the train do.

In this case, the data is classified into fixed data and variable data, the fixed data provides information related to the path environment, and the variable data provides information related to the train operation and the career status.

Of the above levels 1, 2 and 3, ERTMS level 1 signaling system is currently installed in Gyeongbu and Honam lines in Korea.

1, the ERTMS level 1 includes a balise 12 as a terrestrial signal device and a lineage electronic unit (LEU) 14 as a line device as shown in Fig. 1, so that the line 2 and the vehicle 1 For example, the ATP monitors the safe operation of the vehicle by calculating the speed control curve based on the line occupancy state, line characteristics, and braking characteristics of the vehicle.

1, balise antenna 22 is interfaced with balise 12 of line 2 when a train is operated in the ERTMS mode in line 2 operated by ERTMS.

The information for controlling the speed of the train received through the Balance antenna 22 is transmitted to the onboard signaling device 20 through a BTM (Balance Transmission Module) 24, The speed control curve necessary for safe driving of the vehicle 1 is calculated, and is utilized together with information (moving distance) provided by a tachometer (not shown) installed on the wheel shaft of the vehicle.

On the other hand, in the case of a train, the on-vehicle signaling device is switched to another backup signaling device for backup in case of failure of one on-vehicle signaling device, so as to secure the availability of the train operation, (Hereinafter, referred to as " vehicle-mounted signal device 1 ") and a vehicle-mounted signal device 2 (20a ', 20a ", 20b', 20b ").

In the case of a railway vehicle having two cabs such as KTX, two BTMs (24a ', 24a') are provided in front and rear portions of the vehicle and two cabs 1a and 1b, respectively. ), (24b ', 24b ")).

Similarly, in the case of a railway vehicle having a cab in both directions, two bales (22a 'and 22a') are connected to the BTM in a one-to- , (22b ', 22b ")) should be installed.

Therefore, there is a problem that installation and maintenance of the Balis antenna to both cab lanes are time-consuming and expensive.

Registration No. 10-1351508 (Registration date January 01, 2014) Registration No. 10-1049551 (registered on July 8, 2011)

SUMMARY OF THE INVENTION The present invention has been conceived in order to solve the above-described problems, and it is an object of the present invention to provide a multi-connection method using a digital communication method between a balis antenna and a BTM, BTM1 and BTM2 of the opposite cab are interchanged to reduce the installation volume of balis antenna by half and reduce the installation and maintenance cost and time by applying inter-cabin relay system and signal processing of ERTMS The purpose of the method is to provide.

In order to achieve the above object, an inter-cabin relay system of an ERTMS-applied railway vehicle according to an embodiment of the present invention includes: an onboard signal device provided in each of two cabs of a train;

A BTM connected to the onboard signaling device via a digital transmission line;

A balis antenna installed at one of the busses of each of the cabins and connected to the BTM1 of the cabin and the BTM2 of the cabin of the opposite cabin through the digital transmission line; And

A balis provided at a predetermined interval in the line and wirelessly communicating with the balis antenna;

.

In addition, the Balis converts the power supply radio signal received from the balis antenna into a power signal, activates it, reads the data stored in the built-in recording device, modulates it into a data radio signal, and wirelessly transmits the data to the balis antenna,

The balis antenna converts the received data radio signal into a wired signal and transmits it to the BTM through digital communication,

The BTM encodes the digital signal and transmits the digital data to the onboard signaling device through digital communication.

In addition, the balis is characterized in that a data radio signal is transmitted on a specific frequency by a frequency shift keying (FSK) method to a balisen antenna.

Further, the balis antenna is characterized in that the received data radio signal is analyzed and converted into digital data (FSK - > digital).

In addition, the above-mentioned two-way on-vehicle signal devices in the same cab can be switched and used.

And an inter-cabin relay system of ERTMS applied railway vehicles.

A signal processing method of an inter-cabin relay system of an ERTMS applied railway vehicle according to an embodiment of the present invention includes:

(a) transmitting a balis reception control command through a digital communication to a BTM in the same cabin in an onboard signaling device in one cabin;

(b) generating a power line signal at the BTM and transmitting the command to the Balance antenna of the same cab through the digital communication;

(c) generating a power supply radio signal from the balis antenna and wirelessly transmitting the power supply radio signal to a balun of the ground line;

(d) converting the power supply radio signal received by the balis into a power signal, activating the power supply signal, accessing internal recording data, decoding the recording data to generate a data radio signal, and transmitting the data radio signal through frequency shift keying FSK) method, and transmitting the radio signal to the balun antenna wirelessly;

(e) interpreting the data radio signal received by the balis antenna, converting the digital data into digital data (FSK - > digital), and transmitting the digital data to the BTM through digital communication; And

(f) transmitting the encoded and analyzed balance data received by the BTM to an onboard signaling device of any one of the cabin through digital communication;

.

If a fault occurs in one of the onboard signaling devices of the cabin, the signal is transferred to another onboard signal device in the cabin, and the other BTM of the cabin is connected to the balun antenna installed on the opposite cabin, To (f) are performed to receive the balance data.

The other on-vehicle signal devices calculate the current position of the train by compensating for the distance difference between the balise antenna installed in the cab of the cab and the Balis antenna installed on the cab of the opposite cab.

According to the means for solving the above-mentioned problems, it is possible to perform multiple connection using the digital communication method between the balis antenna and the BTM, and to increase the transmission length, a single balis antenna installed in the cab of the cab is connected to the BTM1 of the cab, By connecting BTM2 interchangeably, it is possible to reduce the installation volume of balis antenna by half and reduce installation and maintenance cost and time accordingly.

1 is a view for explaining a railway vehicle operation at a conventional ERTMS level 1.
FIG. 2 is a block diagram showing an onboard signal system of a conventional ERTMS applied railway vehicle.
3 is a block diagram illustrating an inter-cabin relay system of an ERTMS applied railway vehicle according to the present invention.
4 is a flowchart showing a signal processing method between the balise and the on-vehicle signal device in the relay system shown in Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

It is to be noted that the same components of the drawings are denoted by the same reference numerals and symbols as possible even if they are shown in different drawings.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Also, when a part is referred to as "including " an element, it does not exclude other elements unless specifically stated otherwise.

3 is a block diagram illustrating an inter-cabin relay system of an ERTMS applied railway vehicle according to the present invention.

(20a ', 20a'), 20b ', 20b' ') and a BTM ((20b', 20b ')) are provided in each of the cabs 1a and 1b of the train, 24b ''), 24b ', 24b' ') are doubly provided, and the on-vehicle signal devices and the BTM are connected to each other through digital transmission lines. Balancing antennas 22a and 22b are connected to the BTM1 of the cabin and the BTM2 of the cabin opposite to each other through a digital transmission line.

That is, the balise antenna 22a provided in the cab of the cab 1 (1a) is connected to the BTM1 22a 'of the cab 1 and the BTM2 22b "of the cab 2 via the digital transmission line, The balise antenna 22b is connected to the BTM1 22b 'of the cab 2 and the BTM2 22a "of the cab 1 via a digital transmission line.

At this time, the car signaling device connected to the digital transmission line, the BTM, the BTM and the balis antenna transmit and receive signals by the digital communication method of the wire, the balis antenna and the balis of the line transmit and receive signals by the wireless communication method, 1 and the on-vehicle signal device 2 are configured to be capable of switching and operating with each other.

Hereinafter, the functions of the respective components of the relay system will be described, and a plurality of the same components perform the same function. Here, the vehicle-mounted signal device 1 20a ', BTM1 24a', balise antenna 22a and the balise 12 of the line will be described.

First, the onboard signaling device 20a 'in the cabin 1a transmits a balise reception control command to the BTM 24a' in a digital communication system, and receives balance data in a digital communication system from the BTM 24a ' To perform the safety control logic.

The BTM 24a 'in the cab generates a power line signal according to a Balis reception control command received from the onboard signaling device 20a' in a digital communication manner and transmits the command to the balis antenna 22a in a digital communication manner Receives the digital data from the balis antenna 22a through a digital communication method, encodes and analyzes the digital data, and transmits the balis data to the onboard signaling device 20a 'in a digital communication manner.

The balise antenna 22a of the cab of the cab generates a power signal for power supply (for example, 27.115 MHz) according to a command transmitted by the BTM 24a ' (4.24 MzHz, FSK) from the Balis in a digital communication manner and converts the data radio signal into an analysis and digital data (FSK-> Digital ) And transmits the digital data to the BTM 24a 'in a digital communication manner.

The balis 12 of the line converts the power supply radio signal received from the balisenna 22a in a radio communication manner into a power signal when the train passes over the balis, activates the power signal, accesses the internal recording data, And decodes the recording data to generate a radio signal. The radio signal is transmitted at 4.24 MHz, for example, by a frequency shift keying method, and is transmitted to the balis antenna 22a through a wireless communication system.

That is, the balis 12 transmits driving information required for a train when passing through a train using radio frequency (RF) to the balun antenna 22a, more specifically, the on-vehicle signal device 20a ' It sends information about how the train will travel in the future.

The information transmitted from the balise 12 to the balise antenna 22a is a train operation such as fixed information such as a gradient of a line, a line environment such as a curve, and traffic signal information received from an LEU And transmits variable information related to a career state or the like.

Fig. 4 is a flowchart showing a signal processing method between the balise and the on-vehicle signal device in the relay system shown in Fig. 3, for example, in which the onboard signal device 1 20a ', BTM1 24a' A signal processing method between the antenna 22a and the balis 12 of the line will be described.

While the train is running, the on-vehicle signaling device 20a 'in the vehicle transmits a balice reception control command to the BTM 24a' in the vehicle in a digital communication manner (S402).

The BTM 24a 'generates a wire signal for power supply according to the Balis reception control command received from the on-vehicle signaling device 20a' in a digital communication manner and transmits the command to the balise antenna 22a outside the vehicle in a digital communication manner (S404).

The Balance antenna 22a generates a power signal for power supply (e.g., 27.115 MHz) according to a command transmitted from the BTM 24a 'in a digital communication method to generate a power signal for power supply, To the balise 12 of the ground line (S406).

The balis 12 converts the power supply radio signal received from the balis antenna 22a passing through the upper portion into a power signal and activates it (S408), accesses the internal recording data, And generates a radio signal by decoding (S410).

Next, the balis 12 transmits the radio signal to the balis antenna 22a through a frequency shift keying method, for example, at 4.24 MHz (S412).

The balis antenna 22a receives a data radio signal (4.24 MHz, FSK) from the balis 12 in a digital communication manner, analyzes the data radio signal, converts the data radio signal into digital data (FSK -> digital) The digital data is transmitted to the BTM 24a 'in a digital communication manner (S414).

The BTM 24a 'receives digital data from a balis antenna 22a by a digital communication method, encodes and analyzes the digital data (S416), and transmits the balis data to the onboard signal device 20a' (S418).

The onboard signaling device 20a 'receives balance data in a digital communication method from the BTM 24a' and performs calculation together with information provided by the tachometer to perform a safety control logic by calculating the current position of the train S420).

Thus, when the train is started, the on-board signaling device 1 (20a ') of the cab 1 (1a) operates in an active state, and it is necessary to operate the train through the BTM1 24a' and balise antenna 22a of the cab 1 And receives the balise information.

When a failure of the on-vehicle signaling device 1 (20a ') occurs while the train is running, the onboard signaling device 2 (20a ") in the same cab 1 (1a)

The on-vehicle signal device 2 (20a '') carries out the steps S402 to S418, and the onboard cabin 2 (20a '') connected to the BTM2 24a '' of the cab 1 1a and the BTM2 24a ' The current position of the train is calculated on the basis of the balise information received from the balise antenna 22b installed in the lane of the lane 1b to perform the safety control logic.

At this time, the onboard signaling device 2 (20a ") compares the distance between the balise antenna 22a of the cab 1 (1a) and balise antenna 2 (22b) of the cab 2 (1b) .

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. In addition, it is a matter of course that various modifications and variations are possible without departing from the scope of the technical idea of the present invention by anyone having ordinary skill in the art.

1: vehicle 1a: cab 1
1b: cab 2: track
12: balis 20a ', 20b': on-vehicle signal device 1
20a ", 20b ": an on-vehicle signal device 2 22a, 22b: a balis antenna
24a ', 24b': BTM1 24a ", 24b": BTM2

Claims (8)

An on-vehicle signal device provided in each of two cabs of a train;
A BTM connected to the onboard signaling device via a digital transmission line;
A balis antenna installed at one of the busses of each of the cabins and connected to the BTM1 of the cabin and the BTM2 of the cabin of the opposite cabin through the digital transmission line; And
A balis provided at a predetermined interval in the line and wirelessly communicating with the balis antenna;
To - cab relay system of an ERTMS - applied railway vehicle. The method according to claim 1,
The Balis converts the power supply radio signal received from the balis antenna into a power signal and activates it. Then, it reads the data stored in the built-in recording device, modulates it into a data radio signal, and wirelessly transmits the data to the balis antenna,
The balis antenna converts the received data radio signal into a wired signal and transmits it to the BTM through digital communication,
The BTM encodes a digital signal and transmits balis data to the onboard signaling device through digital communication. 3. The method of claim 2,
The Baliss is an inter-cabin relay system of an ERTMS applied railway vehicle that transmits a data radio signal to a balisen antenna at a specific frequency using a frequency shift keying (FSK) method. The method of claim 3,
The balis antenna is an inter-cabin relay system of an ERTMS applied railway vehicle that analyzes a received data radio signal and converts it into digital data (FSK -> digital). The method according to claim 1,
Wherein the two-wheeled signal devices provided in the same cab are configured to be used by being interchanged with each other. A signal processing method of a configuration relay system,
(a) transmitting a balis reception control command through a digital communication to a BTM in the same cab in one of the onboard signals of the cabin;
(b) generating a power line signal at the BTM and transmitting the command to the Balance antenna of the same cab through the digital communication;
(c) generating a power supply radio signal from the balis antenna and wirelessly transmitting the power supply radio signal to a balun of the ground line;
(d) converting the power supply radio signal received by the balis into a power signal, activating the power supply signal, accessing internal recording data, decoding the recording data to generate a data radio signal, and transmitting the data radio signal through frequency shift keying FSK) method, and transmitting the radio signal to the balun antenna wirelessly;
(e) interpreting the data radio signal received by the balis antenna, converting the digital data into digital data (FSK - > digital), and transmitting the digital data to the BTM through digital communication; And
(f) transmitting the encoded and analyzed balance data received by the BTM to an onboard signaling device of any one of the cabin through digital communication;
A method of signal processing in an inter-cabin relay system of an ERTMS applied rail vehicle. The method according to claim 6,
If a failure occurs in one of the on-board signaling devices in the above-mentioned cabin, the signal is transferred to another on-vehicle signal device in the cabin, f) receiving the balise data by performing the step of performing the signal processing method of the inter-cabin relay system of the railway vehicle. 8. The method of claim 7,
Wherein the other on-vehicle signal devices calculate a current position of a train by compensating for a distance difference between a Balis antenna installed in the cab of the cab and a Balis antenna installed on the opposite cab of the cab.

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