CN101419448A - Production line real time acquiring and data accounting system and method - Google Patents
Production line real time acquiring and data accounting system and method Download PDFInfo
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Abstract
The invention relates to a system used for real-time data collecting and counting on a production line. The system comprises a concentrated server, a distributed controller, a data collector and a data collecting terminal. The concentrated server is connected with the distributed controller, so as to realize storage, analysis, counting and report generation for various production condition data on the production line, thereby providing data support for dispatching and collocating of production; the distributed controller is connected with the data collector to collect data in the data collector real-time, so as to analyzing and counting the data primarily, thereby periodically storing operation results into the concentrated server and searching required production information from the concentrated server; the data collector is connected with the data collecting terminal, so as to separate, rectify, read and store electrical signals transmitted from the data collecting terminal and transmit the data to the distributed controller in real time; and the data collecting terminal is used for converting on-spot production information into electrical signals and then transmitting the electrical signals to the data collector. The system provides possibilities to control cycle time in real time and obtain excellent product quality.
Description
Technical field
The present invention relates to the data acquisition technology that manufacturing industry is used for line management, relate in particular to the system and method that the various grouped datas in the production run are gathered in real time, added up.
The present invention relates to a kind of with the collection of the real-time grading data in the production field and the system of management and control, to the various grouped datas in the production run realize adding up, show, the function of control, inquiry and statement analysis, improve the real-time control ability of production line, the real time data of the abnormal conditions that occur in the production line in time is provided, reduce the fluctuation in the production run, improve the quality of producing product.
Background technology
Along with the increase to the various product market demand, the production scale of modern product manufacturing enterprise becomes increasing, and the management node of production increases, and makes the quality control of production become more and more difficult.At the communication production field, because the upgrading of communication product is very fast, the customization product increases especially, makes the kind analogy of producing product that bigger variation be arranged in the past, causes the data acquisition of production product and the control of quality to become very difficult.The streamline of production plant area is as the core of manufacturing enterprise, the various information of its production run is the important evidence of production management, how in real time the qualitative data of producing and the beat of production to be gathered out, and in real time the quality and the productive temp of product are controlled, be comprehensive embodiment to the productive capacity and the competitiveness of manufacturing enterprise.
In traditional manufacturing enterprise, the qualitative data of production and the beat of production are to gather by manually-operated, after the production data of all multiple pipelines is added up, generate production report and offer the foundation of managerial personnel as production control.Gather and add up because this method need be classified to the product of many streamlines, multiple different batches and kind, the condition of production of reflection is delayed in time with actual situation, can't realize real-time statistics and the purpose of controlling in real time.
In sum, adopt traditional collecting method to have following shortcoming:
(1) distortion of increase data.Adopt the method for complicate statistics data, have the probability of artificial mistake of statistics, the data of collection possibly can't truly reflect the truth of production line.
(2) increased the input of manpower.Adopt the method for complicate statistics, need personnel that the data of production line are gathered and typing, when production scale was big, the manpower of input was very big, has increased production cost thus.
(3) product classification statistical difficulty.The product category of customization is very many in modern manufacturing industry, and product processing quantity is generally less, therefore requires manufacturing enterprise to have the flexible production ability.Therefore, if adopt the method for complicate statistics, just very difficult to the grouped data collection of many products.
(4) beat of uncontrollable production.Traditional production data acquisition method can't reflect the situation of production line in real time, so can't change the beat of production, to improve the quality of product.
By Chinese patent network is retrieved, publication number is the patent " a kind of method of real-time monitoring and control of process line operation frequency " of " CN1996183 ", a kind of method of real-time monitoring and control of process line operation frequency is disclosed, when this road station to this running time of workpiece greater than beat is set, the workpiece of following road station flows into the state that seizes up, and then reports to the police by the warning device that is arranged on this road station.This method can be fed back the operation beat information of each station of production line in real time, and occur when unusual can Realtime Alerts when station, strives the equilibrium to each each station productive temp of line body.But this patent has just been described a kind of method of productive temp control, does not relate to the contents such as collection of other production data, with the present invention very large difference is arranged.Publication number is the patent " production information managing and control system and method " of " CN1696945 ", a kind of production information managing and control system and method are disclosed, be used for gathering the production information of production run, and generate the production report that reflects the condition of production, but this patent does not relate to the content of real-time beat control and product classification statistics.
Summary of the invention
Technical matters to be solved by this invention provides the system and method for a kind of production line real time acquiring and statistics, can be in real time, automatically information such as various production datas in the production run and production status are gathered and are added up, the production report of situations such as control productive temp and product quality is provided for line manager.
In order to solve the problems of the technologies described above, the invention provides the system of a kind of production line real time acquiring and statistics, comprising: centralized server, distributed controller, data acquisition unit and data collection station; Wherein:
Centralized server is connected with one or more distributed controllers as the database of system, is used to realize the storage, analysis, statistics of the various condition of production data of production line and generates form, thereby provide the data support for the scheduling and the allotment of production line production;
The main control part that distributed controller is carried out as system, be connected with one or more data acquisition units, the data that are used for the real-time collecting data acquisition unit are carried out initial analysis and statistics to data, regularly the result who collects, analyzes and add up to the centralized server storage; And, search required production information by visit to centralized server;
Data acquisition unit is connected with one or more data collection stations, is used to realize the electric signal that the data acquisition terminal sends is isolated, shaping, read and store, and in real time data is sent to distributed controller;
Data collection station is used for on-the-spot production information is converted to electric signal, and sends data acquisition unit to.
Further, described system also comprises the display module that is connected with distributed controller, be used under the control of distributed controller, crucial production information in its region within the jurisdiction is shown in real time, make that the production management personnel can in time adjust the beat of production in view of the above in the zone, and can in time take measures the production abnormal conditions that demonstrate.
Further, distributed controller comprises: control module and interface unit, and the data aggregation, analysis and the statistics that are respectively applied for system are controlled, and carry out communication with data acquisition unit, centralized server and display module; Control module contains system state detecting unit, data-reading unit, storage unit and the analytic statistics unit that connects successively, and also contains information query unit; Interface unit contains RS232 interface, Ethernet interface and display interface; Wherein:
The system state detecting unit is connected with the RS232 interface, is used for the data collector is carried out initialization operation, regularly the running status and the connection status thereof of inquiring about described data acquisition unit; After the data-reading unit reading of data breaks down, restart the data-reading unit reading of data, and detect the network connection state of data-reading unit and data acquisition unit, attempt driving again this network and connect, to attempt eliminating fault; When confirming that fault can't be eliminated, on display module, carry out the ALM operation by display interface;
Data-reading unit also is connected with the RS232 interface, and the data storage that is used for the data acquisition unit that will read in real time is in storage unit; Regularly report the data that read by Ethernet interface to centralized server, and by described display interface, the video data on the described display module of real-time update;
Storage unit is used to store the data that data-reading unit reads, and the analysis of inventory analysis statistic unit and statistics;
The analytic statistics unit after being used for the real time data that storage unit is stored analyzed and add up, is stored in the storage unit; By Ethernet interface, regularly report and analyze and statistics to centralized server; And by display interface, analysis, statistics on the described display terminal of real-time update;
Information query unit is connected with display interface with Ethernet interface respectively, is used for by the visit to centralized server the production information that searches being presented on the display module.
Further, described system also comprises the report query terminal that is connected with centralized server, is used to realize the historical record of all production informations of centralized server storage is inquired about and printed.
Further, data acquisition unit comprises connection successively: communication module, control system, processing and storage unit and Signal Spacing unit; Wherein:
Communication module is used to the data interaction with distributed controller that Communication Control and physical link are provided;
Control system is used to realize the complete machine control to the data collector, promptly realizes data acquisition and communication function;
Handle and storage unit, be used for various electric signal that data collection station is sent through anti-shake, shaping is handled and read after, be stored in corresponding storage unit, read to wait for distributed controller;
The Signal Spacing unit is used for the various undesired signals from production line are isolated, in case the corrupt data collector.
Further, data collection station has multiple model, and electric signal comprises level signal and pulse signal.
In order to solve the problems of the technologies described above, the invention provides the method for a kind of production line real time acquiring and statistics, comprise the steps:
(a) system's power-up initializing operation, log-on data acquisition system client software after promptly distributed controller powers on; Then the data acquisition unit that connects is scanned and initialization, be in normal duty with the specified data collector; Reattempt the connection centralized server, can provide the service of data storage to determine centralized server;
(b) carry out information processing, promptly the timing scan data acquisition unit reads the production data that it collected in real time from data acquisition unit; The data that read are carried out format conversion or analyze, add up and store after forming production information; Write production information in certain time limit to centralized server; Form is analyzed, adds up and generated to centralized server to production information.
Further, step (a) further comprises: the initialization display module, and the production data of key shown; Step (b) data that read are carried out format conversion or analyze and add up after show in real time.
Further, step (b) also comprises step: repeatedly attempt repairing fault when finding that data acquisition unit is in the abnormal work state; When confirming that fault can't be repaired, the fault warning of sending data acquisition unit by display module.
Further, step (b) also comprises step: from centralized server search production information, and show the production information that searches on display module; Or realize the historical record of all production informations in the centralized server is inquired about and printed by the report query terminal.
Adopt the system and method for production line real time acquiring data of the present invention,, both saved human cost, also reduced artificial error by all kinds of production informations of production line being converted into digital signal and automatically, in real time it being gathered and analyze and adds up; Simultaneously, because the demonstration and the form of production status can be provided for production phenomenon managerial personnel in real time, thereby for the coordination of each operation provides foundation, also the real-time control for the production scene beat provides possibility.In addition, product at the multiple model of customization, adopt the present invention to be easy to the product of streamline is classified and added up, thereby the production status to the product of different model is analyzed, make the managerial personnel of production line can in time take the outlet measure, control with this and obtain good product quality.
Description of drawings
Fig. 1 is the system architecture diagram of production line real time acquiring of the present invention and statistics;
Fig. 2 is the control flow chart of distributed controller in the system of the present invention shown in Figure 1;
Fig. 3 is the theory diagram of distributed controller in the system of the present invention shown in Figure 1;
Fig. 4 is the theory diagram of data acquisition unit in the system of the present invention shown in Figure 1.
Embodiment
The system and method for production line real time acquiring of the present invention and statistics, after by one or more data collection stations the various information of producing being converted into signals such as digitized level, pulse, by data acquisition unit with its collection, storage and in time report distributed controller; After this distributed controller is added up its production information from a plurality of data acquisition units of one or more production line that reads, analyze, in real time some crucial production datas are presented on the display terminal, in time adjust the beat of production to instruct line manager; Simultaneously, with its data of collecting, adding up and analyzing, regularly report centralized server by Ethernet interface; To storing, and generate production report by this centralized server from the production information in a plurality of distributed controller of all multiple pipelines; Line manager can inquire all kinds of production reports of storing in the centralized server by the transmission of Ethernet on managerial report inquiry PC, adjust the important evidence of productive temp and control product quality in real time as it.
Below in conjunction with embodiment and accompanying drawing technique scheme of the present invention is at length set forth.
As shown in Figure 1, be the structured flowchart of the system of production line real time acquiring of the present invention and statistics, this system comprises: centralized server (such as remote server) 101, one or more distributed controller 102, one or more data acquisition unit 103, a plurality of data collection station 104, display module 105 and report query terminal 106.Wherein:
Centralized server 101 can be a remote server, database as total system, can be connected with many distributed controllers 102, mainly bear the storage, analysis, statistics of the various condition of production data of production line and generate form, the support that provides data for the scheduling of producing and allotment.
Many distributed controllers 102 are main control parts that system carries out, and its external interface mainly contains: with the Ethernet interface of centralized server communication, with the RS232 interface of data acquisition unit communication and with the interface of display module.
Many distributed controllers 102 are generally born (also can bear by network computer NC or embedded control system) by PC, it is connected with one or more data acquisition units 103, data in the real-time collecting data acquisition unit 103, it is carried out being presented on the display module 105 after initial analysis and the statistics, and timing is to the database storing production information of centralized server 101.As the master control system of a zonule data aggregation, it is mainly used in realization:
(1) collection is controlled to data
Data acquisition to data collector 103 is controlled, the data in the real-time reading of data collector 103, and the running status of data query collector 103 and the connection status of network thereof make the production data acquisition system in the zonule be in normal running status.When it inquires after data acquisition unit 103 itself breaks down or its communication part breaks down, just start the abnormality processing flow process, attempt the fault or the communication network fault of repair data collector 103; When fault can't be repaired, distributed controller 102 just sent alerting signal to the managerial personnel of production scene, to notify managerial personnel's detection system equipment.
(2) production data in the zonule is collected, stored and inquires about
Distributed controller 102 is as the data acquisition control system of zonule, need in 103 pairs of zonules of control data collector all production informations to gather, and the data of gathering are realized the real-time storage of a constant volume, carry out data analysis and demonstration in the short time for it, thereby the historical production information of production line is inquired about for the site administrator.
(3) production data of zonule is analyzed and shown
Distributed controller 102 also is connected with display module 105, and the data of its real-time storage are carried out initial analysis, the critical data that influences production quality and productive temp, is presented in real time on the display module 105.The production scene supvr whether need to determine the beat of coordinating production or detects relevant production technology and equipment by with reference to these crucial production datas.
Distributed controller 102 is also being undertaken the control to data classification and storage and productive temp.In process of production, the correlativity of Production Line efficient and productive temp is very big.And productive temp depends on two factors: the coordination of each operation productive capacity and the qualification rate of producing product.If each operation productive capacity is inconsistent, according to the short slab principle, the efficient of total production equals the minimum operation of productive capacity.By the analysis of 102 pairs of real time datas of distributed controller, can effectively adjust the productive capacity of each production process, make the beat of each operation harmonious, reach optimum effect.Produce the qualification rate of product and cross when hanging down, the product of production can cause the quality variation of production.This situation occurring may be that certain parts or certain production link go wrong, and classification fault and real-time Presentation Function by distributed controller 102 can make the production scene managerial personnel in time correct fault, guarantees the quality of the product of producing.
(4) to the database access data of centralized server 101
Distributed controller 102 converts production information to the standard database of centralized server 101 storage format, is sent in the centralized server 101 and goes, and realizes the permanent storage of production data.Simultaneously, 102 distributed controllers also can inquire the historical record of all production informations by the visit to centralized server 101.
Managerial report inquiry PC106 is connected with centralized server 101, and the historical record of all production informations that are used for centralized server is stored is inquired about and printed.
The control flow of distributed controller mainly comprises in the system of the present invention: power-up initializing flow process and message processing flow.Wherein:
The power-up initializing flow process: carry out the startup initialization of PC system after distributed controller powers on earlier, log-on data acquisition system client software then begins to carry out the initialization of production line real-time grading data acquisition system (DAS):
At first the data acquisition unit that connects is scanned and initialization, determine that the data acquisition unit that is connected to distributed controller is in normal duty;
Attempt then connecting remote server, determine whether remote server can provide the service of data storage;
Last power-up initializing display module, and a crucial production data shows.
Message processing flow: after above-mentioned initial work is finished, give tacit consent to per two seconds run-down data acquisition units, from data acquisition unit, read the data of representing production information;
After the data that read are carried out format conversion and analyzing, production information is shown in real time by display module;
When certain data acquisition unit is in the abnormal work state, can repeatedly attempt repairing fault; When fault can't solve, send failure warning to the site administrator;
Write production information in certain time limit to remote server, realize the permanent storage of production information; Perhaps, read production information and demonstration from remote server.
Fig. 2 is the data acquisition control process flow diagram of the above-mentioned distributed controller of the present invention, and its key step is as follows:
201: system's power-up initializing.After distributed controller powers on, carry out the initialization of PC system earlier, log-on data acquisition system client software carries out the initialization of production line real-time grading data acquisition system (DAS) then;
202: the initialization of data acquisition unit.At first the data acquisition unit that connects is scanned and initialization, determine that the data acquisition unit that connects is in normal duty;
203: the initialization of remote server.Attempt connecting remote server, determine whether remote server can provide the service of data storage;
204: the initialization of display module.Display module is carried out power-up initializing, and the production data of key is presented on the display module;
205: whether arrive the sweep time of data query collector;
206: the data acquisition unit of setting as the client arrives sweep time, reads production information from data acquisition unit;
207: judge whether the data in the reading of data collector successfully;
208: when judge can be normally from data acquisition unit during reading of data, execution in step 210; And when judging that certain data acquisition unit is in the abnormal work state, can repeatedly attempt repairing fault;
Whether for example, at first attempt repeatedly reading of data again, if still failing normal read fetches data, whether the coupling part of then going to inquire about with data acquisition unit fault occurred, and repeatedly drives again and wait trial, can eliminate with definite fault;
209: when definite fault has been eliminated, execution in step 210; And when definite fault can't be eliminated, send fault warning to the site administrator;
210: on display apparatus module, carry out the renewal of real time data.To from data acquisition unit, read production information and carry out format conversion and analysis, show in real time by display module then;
211: whether arrive the update time of judging remote server;
212: to it write production information, to realize the permanent storage of production information when arriving the update time of the remote server of setting as the client; And when this no show, return execution in step 205 update time.
Certainly, in this process, can also search needed production information, and display it by the visit remote server; Perhaps, search for the historical record of all production informations and printing.
Fig. 3 is the theory diagram of distributed controller 1 in the system of production line real time acquiring of the present invention and statistics, this distributed controller 102 comprises control module 1020 and interface unit 1026 two parts, is respectively applied for the data acquisition of system is controlled and carried out communication with data acquisition unit, centralized server and display module.Control module wherein contains system state detecting unit 1021, data-reading unit 1022, storage unit 1023 and the analytic statistics unit 1024 that connects successively again for 1020 li, also contains information query unit 1025; Wherein:
System state detecting unit 1021, be connected with the RS232 interface in the interface unit 1026, be used for data collector 103 is carried out initialization operation, and regularly the running status and the connection status thereof of data query collector 103 make the production data acquisition system in the territory, jurisdiction district be in normal running status; After the failure of data-reading unit 1022 reading of data, restart its data read, and detect the network connection state of data-reading unit 1022 and data acquisition unit, attempt driving again this network and connect, attempt eliminating the data acquisition fault with this; When confirming that fault can't be eliminated, on display module 105, carry out ALM operation, for example sound, light or other forms of alarm by the display interface in the interface unit 1026;
Data-reading unit 1022, it also is connected with RS232 interface in the interface unit 1026, and the data storage that is used for the data acquisition unit 103 that will read in real time is in storage unit 1023; By the Ethernet interface in the interface unit 1026, regularly report the data that read to centralized server 101, and by the display interface in the interface unit 1026, the video data on the real-time update display module 105;
Fig. 4 is the theory diagram of data acquisition unit in the system of production line real time acquiring of the present invention and statistics, and this data acquisition unit 103 comprises and connecting successively: communication module 1031, control system 1032, processing and storage unit 1033 and Signal Spacing unit 1034.Wherein:
Handle and storage unit 1033, the various electric signal that are used for data collection station 104 is sent are stored in corresponding storage unit through after dithering process, shaping and reading, and read to wait for distributed controller 102.
Adopt the system and method for production line real time acquiring data of the present invention, the production various information is converted into digital signal and automatically, in real time it is gathered and analyze and adds up, saved human cost, also reduced artificial error.Because can be in real time for production phenomenon managerial personnel provide the production status form, for the coordination of each operation provides foundation, also for the real-time control of production scene beat provides may.And the present invention easily classifies to the product on the streamline and adds up, thereby can analyze at the production status of the product of the multiple model of customization, obtains good product quality with this.The present invention has defined each equipment and each module in the system for this reason.But also be not limited to these equipment and these modules.
Though the present invention discloses preferred embodiment as above; right its is not in order to limiting the present invention, anyly has the knack of this skill person, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, thus protection scope of the present invention when with aforementioned claims the person of being defined be as the criterion.
Claims (10)
1, the system of a kind of production line real time acquiring and statistics comprises: centralized server, distributed controller, data acquisition unit and data collection station; Wherein:
Described centralized server is as the database of described system, be connected with one or more described distributed controllers, be used to realize the storage, analysis, statistics of the various condition of production data of production line and generate form, thereby provide the data support for the scheduling and the allotment of described production line production;
The main control part that described distributed controller is carried out as described system, be connected with one or more described data acquisition units, the data that are used for the described data acquisition unit of real-time collecting, described data are carried out initial analysis and statistics, regularly the result who collects, analyzes and add up to described centralized server storage; And, search required production information by visit to described centralized server;
Described data acquisition unit is connected with one or more described data collection stations, is used to realize that the described electric signal that the data acquisition terminal is sent is isolated, shaping, reads and store, and in real time data are sent to described distributed controller;
Described data collection station is used for on-the-spot production information is converted to described electric signal, and sends described data acquisition unit to.
2, according to the described system of claim 1, it is characterized in that, described system also comprises the display module that is connected with described distributed controller, be used under the control of described distributed controller, crucial production information in its region within the jurisdiction is shown in real time, make that the production management personnel can in time adjust the beat of production in view of the above in the described zone, and can in time take measures the production abnormal conditions that demonstrate.
3, according to the described system of claim 2, it is characterized in that, described distributed controller comprises: control module and interface unit, the data aggregation, analysis and the statistics that are respectively applied for system are controlled, and carry out communication with described data acquisition unit, described centralized server and described display module; Described control module contains system state detecting unit, data-reading unit, storage unit and the analytic statistics unit that connects successively, and also contains information query unit; Described interface unit contains RS232 interface, Ethernet interface and display interface; Wherein:
Described system state detecting unit is connected with described RS232 interface, is used for described data acquisition unit is carried out initialization operation, regularly the running status and the connection status thereof of inquiring about described data acquisition unit; After described data-reading unit reading of data breaks down, restart described data-reading unit reading of data, and detect the network connection state of described data-reading unit and described data acquisition unit, attempt driving again this network and connect, to attempt eliminating described fault; When confirming that described fault can't be eliminated, on described display module, carry out the ALM operation by described display interface;
Described data-reading unit also is connected with described RS232 interface, and the data storage that is used for the described data acquisition unit that will read in real time is in described storage unit; Regularly report the data that read by described Ethernet interface to centralized server, and by described display interface, the video data on the described display module of real-time update;
Described storage unit is used to store the data that data-reading unit reads, and stores the analysis and the statistics of described analytic statistics unit;
Described analytic statistics unit after being used for the real time data that described storage unit is stored analyzed and add up, is stored in the described storage unit; By described Ethernet interface, regularly report and analyze and statistics to described centralized server; And by described display interface, analysis, statistics on the described display terminal of real-time update;
Described information query unit is connected with described display interface with described Ethernet interface respectively, is used for by the visit to described centralized server, and the described production information that searches is presented on the described display module.
According to the described system of claim 1, it is characterized in that 4, described system also comprises the report query terminal that is connected with described centralized server, be used to realize the historical record of all production informations of described centralized server storage is inquired about and printed.
According to the described system of claim 1, it is characterized in that 5, described data acquisition unit comprises successively and to connect: communication module, control system, processing and storage unit and Signal Spacing unit; Wherein:
Described communication module is used to the data interaction with described distributed controller that Communication Control and physical link are provided;
Described control system is used to realize the complete machine control to described data acquisition unit, promptly realizes data acquisition and communication function;
Described processing and storage unit, be used for various electric signal that described data collection station is sent through anti-shake, shaping is handled and read after, be stored in corresponding storage unit, read to wait for described distributed controller;
Described Signal Spacing unit is used for the various undesired signals from production line are isolated, with the described data acquisition unit of anti-tamper.
According to the described system of claim 1, it is characterized in that 6, described data collection station has multiple model, described electric signal comprises level signal and pulse signal.
7, the method for a kind of production line real time acquiring and statistics comprises the steps:
(a) system's power-up initializing operation, log-on data acquisition system client software after promptly distributed controller powers on; Then the data acquisition unit that connects is scanned and initialization, to determine that described data acquisition unit is in normal duty; Reattempt the connection centralized server, can provide the service of data storage to determine described centralized server;
(b) carry out information processing, promptly the described data acquisition unit of timing scan reads the production data that it collected in real time from described data acquisition unit; The data that read are carried out format conversion or analyze, add up and store after forming production information; Write described production information in certain time limit to described centralized server; Form is analyzed, adds up and generated to described centralized server to described production information.
8, in accordance with the method for claim 7, it is characterized in that step (a) further comprises: the initialization display module, and the production data of key shown; Step (b) data that read are carried out described format conversion or carry out described analysis and the statistics after show in real time.
9, in accordance with the method for claim 8, it is characterized in that step (b) also comprises step: when finding that data acquisition unit is in the abnormal work state, repeatedly attempt repairing fault; When confirming that fault can't be repaired, the fault warning of sending described data acquisition unit by described display module.
10, in accordance with the method for claim 8, it is characterized in that step (b) also comprises step: search for described production information from described centralized server, and on described display module, show the described production information that searches; Or realize the historical record of all production informations in the described centralized server is inquired about and printed by the report query terminal.
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| CN101763110A (en) * | 2010-02-03 | 2010-06-30 | 无锡福源自动化系统工程有限公司 | Flexible assembly line monitoring system |
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| CN1419170A (en) * | 2002-12-17 | 2003-05-21 | 白凤双 | Universal intelligent automatic system |
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