CN102625339A - Monitoring system for using state of integrated wireless communication equipment of railway locomotive - Google Patents
Monitoring system for using state of integrated wireless communication equipment of railway locomotive Download PDFInfo
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- CN102625339A CN102625339A CN2012100656420A CN201210065642A CN102625339A CN 102625339 A CN102625339 A CN 102625339A CN 2012100656420 A CN2012100656420 A CN 2012100656420A CN 201210065642 A CN201210065642 A CN 201210065642A CN 102625339 A CN102625339 A CN 102625339A
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Abstract
The invention provides a monitoring system for performing dynamic monitoring on the using state of integrated wireless communication equipment of a railway locomotive. The monitoring system comprises a vehicle-mounted monitoring device, a ground data center, and a vehicle-ground integrated network device which connects the vehicle-mounted monitoring device to the ground data center in a wireless communication mode. The working state of the integrated wireless communication equipment of the railway locomotive is monitored in real time; the working state and relevant service data of equipment associated with the integrated wireless communication equipment of the railway locomotive are monitored in real time; and normal application of the integrated wireless communication equipment of the railway locomotive and relevant ground equipment is guaranteed.
Description
Technical field
The present invention relates to a kind of monitoring system of railway locomotive integration radio communication apparatus utilization state; Belong to technical fields such as railway informationization, railway infrastructure state (radio communication) monitoring and railway security guarantee, will directly apply to railway wireless communication equipment monitoring field.
Background technology
Railway locomotive integration radio communication apparatus (hereinafter to be referred as CIR) is to many new application of point-to-train communication and development plan; And construction and development in order to adapt to GSM-R; Operate the requirement that shows according to unified functions of the equipments, unified interface condition, unified physical structure, unified communication protocol, unification, and the novel railway private radio communication equipment that makes up.
CIR has carried applied business such as dispatching communication, the transmission of dispatching command information, the transmission of train radio running number check information, the transmission of last vehicle of train information, train protection alarm, is that train safe efficiently moves key equipment.This equipment has following major function:
GSM-R and 450MHz mode of operation automatically switch and the manual switchover function;
Has 450MHz dispatching communication (train dispatch radio communication) function;
Have data information transmission functions such as the train tail wind pressure of carrying, wireless running number, dispatching command;
Has GSM-R dispatching communication system function;
Have GSM-R conventional data transfer function, GPRS or circuit mode data transmission link can be provided according to the needs of bearer service;
Support 800MHz row tail and train safe early warning system vehicle radio station function;
Has the function that GPS raw information, public positional information are provided to the user;
Possess information stores and export function.Comprise storage and the derivation etc. of storage and derivation, bearer service communication process and Content of Communication of storage and derivation, the Speech Communication content of dispatching command.
The CIR equipment disposition has record cell, and driver's operation, line tower foundation information, operation business information, status information of equipment etc. are stored.When CIR equipment goes wrong or during phenomenon of the failure, can when train is put in storage, the data backup of record cell storage be come out, carry out playback and inquiry through computer software, with the reason of decision problem or fault.
Present domestic CIR producer generally has CIR record cell data is carried out instrument and the corresponding software that off-line is downloaded, analyzed; The shortcoming that this mode exists mainly contains: need the professional to carry professional tool; To locomotive depot's locomotive, download CIR record cell data and analyze; Data general record 24 hour datas of CIR record cell surpassed after 24 hours, if do not download, will be covered by new record data; The off-line data downloaded does not possess record data repeatedly function such as analysis-by-synthesis when.
CIR equipment is train safe, efficiently moves one of key equipment; In order to realize to the dynamic monitoring in transit of CIR utilization state; Can monitor operating state, the operation business information of operation train CIR equipment in real time on ground; Monitor operating state and related service information in real time with CIR equipment associated device; Monitor driver operation information in real time, in time grasp the utilization state of CIR equipment, for responsible institutions such as equipment control, maintenance maintenances effective maintenance maintenance support information is provided simultaneously; Ensure the normal use of CIR equipment and its associated device; Need be with CIR record cell data, perhaps CIR uses state information (comprising information such as driver operation, line tower foundation information, operation business information, equipment state) to be transferred to ground through wireless-transmission network in real time, can realize the real-time monitoring to the CIR equipment working state on ground.In addition, through CIR equipment to numerous trains, and same train CIR equipment records unit repeatedly the data of log carry out association, analysis-by-synthesis, historic comparative analysis, timely discovery CIR equipment and relevant device hidden danger are had extremely important meaning.
Yet; Do not find technology in the prior art as yet to the dynamic monitoring in transit of CIR utilization state; Reach the technology of using state information to carry out analysis-by-synthesis many times in the face of CIR on ground, do not find realization as yet CIR utilization state monitoring device in transit dynamically, real time monitoring function is developed and faced the historical utilization of CIR state information on ground and carry out the exploitation of analysis-by-synthesis software systems.
Summary of the invention
In view of CIR is a novel railway private radio communication equipment; Be that train safe efficiently moves one of key equipment; The present invention is directed to the problems of the prior art, propose a kind of railway locomotive integration radio communication apparatus utilization state dynamic monitoring system and monitoring method, can reach following purpose.
First; In order to monitor the operating state of operation train (comprising: passenger train, synthetic detection vehicle etc.) CIR equipment in real time; The operating state and the related service data of real-time monitoring and CIR equipment associated device, the normal use of guarantee CIR equipment and relevant ground installation; The second, through to the CIR of numerous trains, and same train CIR operating state repeatedly data association, analysis-by-synthesis, the historical contrast of log, in time find related system and hidden trouble of equipment such as CIR, GSM-R network, CTC.
Particularly; The present invention provides a kind of monitoring system; Utilization state to railway locomotive integration radio communication apparatus is implemented dynamic monitoring, and comprising: vehicle-bone monitoring device is installed on the locomotive that disposes railway locomotive integration radio communication apparatus; In transit and image data in real time, and outwards send data after treatment;
Monitor according to the data of being sent on ground in real time at the ground data center; And the ground integrated network equipment of car, adopt the radio communication standard, vehicle-bone monitoring device is connected with the ground data center.
Said vehicle-bone monitoring device comprises: communication module, be connected with railway locomotive integration radio communication apparatus, and gather the initial data of railway locomotive integration radio communication apparatus utilization state; The related data acquisition module is gathered the data relevant with locomotive operation; The data storage processing module is connected with said related data acquisition module with said communication module respectively, is used for initial data is stored and handled with relevant data, forms railway locomotive integration radio communication apparatus utilization state analysis data; Data transmission blocks is connected with said data storage processing module, receives railway locomotive integration radio communication apparatus utilization state analysis data and outwards transmission that said data storage processing module forms; And power module, be used to provide the working power of said vehicle-mounted checkout gear.
Said vehicle-bone monitoring device is arranged in the cabinet based on compact PCI (Compact Peripheral Component Interconnect) bus design.
Said related data acquisition module is a space-time synchronous acquisition module, is used to gather the space-time data of locomotive operation.
The space-time data of said locomotive operation is mileage or gps data.
Said ground data center adopts the pattern of server to carry out framework.
Said ground data center comprises: the aggregation of data analysis module; The data that contrast and analysis vehicle-bone monitoring device are sent, Data Storage, storage and leading subscriber data, primary monitoring data; Communication module; Through the ground integrated network equipment of car, set up communicating by letter of ground data center and vehicle-bone monitoring device, receive Monitoring Data in real time
Wherein the radio communication standard is GSM-R, GSM or 3G.
Also comprise data inquiry terminal, be used for remote access ground data center, show the data that the ground data center provides in real time.
Wherein the ground integrated network equipment of car through the Internet or railway private network, connects ground data center and data inquiry terminal.
To CIR dynamic monitoring demand, adopt the present invention to realize: the ground integrated network bracing or strutting arrangement development and integrated of waiting for bus is issued based on vehicle-mounted CIR information gathering, transmission, analysis and the analysis result of communication patterns such as GSM-R/GSM/3G, terrestrial interconnection net and railway private network in (1); (2) CIR dynamic monitoring car-mounted device development; (3) analysis software design of CIR utilization status monitoring aggregation of data and exploitation; (4) CIR utilization status monitoring data inquiry terminal software design and development.Behind configuration native system on locomotive, train and the EMUs; Can monitor in real time by long-range utilization state on ground CIR equipment; Simultaneously through analysis-by-synthesis to the CIR record data; Can analyze CIR equipment and associated device operating state, can bring into play effective effect the accurate location and the discovering device problem hidden danger of plant issue.The research of this method and employing this method exploitation corresponding system will be filled up dynamic monitoring is implemented in domestic electric affair field to CIR blank.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute qualification of the present invention.In the accompanying drawings:
Fig. 1 is the general structure of CIR utilization state dynamic monitoring system;
Fig. 2 is the design logic figure of vehicle-bone monitoring device;
Fig. 3 is the design logic figure of the ground integrated network equipment of car;
Fig. 4 is that the ground data centring system constitutes and DFD;
Fig. 5 is a ground data center communication software flow chart;
Fig. 6 is a ground data center comprehensive analysis processing software flow pattern.
Embodiment
For making the object of the invention, technical scheme and advantage clearer,, the present invention is explained further details below in conjunction with execution mode and accompanying drawing.At this, exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.
Followingly be elaborated with reference to the accompanying drawing specific embodiments of the invention.
Embodiment 1
See also Fig. 1, Fig. 1 is the general structure of CIR utilization state dynamic monitoring system:
1, vehicle-bone monitoring device
CIR utilization state dynamic monitoring system vehicle-bone monitoring device is installed on the locomotive that disposes CIR, and major function is in transit and image data in real time, and outside transmission data after treatment.
The design logic figure of an embodiment of vehicle-bone monitoring device is as shown in Figure 2, comprising: five parts such as the communication module of collection CIR maintenance data, related data acquisition module, data storage processing module, data transmission blocks, power module.
Particularly, communication module, be with locomotive on railway locomotive integration radio communication apparatus CIR be connected, gather the initial data of railway locomotive integration radio communication apparatus utilization state in real time; The related data acquisition module is gathered the data relevant with locomotive operation; The data storage processing module is connected with the related data acquisition module with communication module respectively, is used for initial data is stored and handled with relevant data, forms railway locomotive integration radio communication apparatus utilization state analysis data; Data transmission blocks is connected with the data storage processing module, receives railway locomotive integration radio communication apparatus utilization state analysis data and outwards transmission that said data storage processing module forms; Power module is used to provide the working power of vehicle-mounted checkout gear.Above-mentioned modularized design has good transplantability, is convenient to expansion, safeguards and upgrading.
Wherein, a specific embodiment of related data acquisition module is a space-time synchronous acquisition module, is used to gather the space-time data of locomotive operation, for example: mileage or gps data etc.After space-time synchronous acquisition module application was in vehicle-bone monitoring device, vehicle-bone monitoring device can realize the collection of CIR maintenance data, and the train operation space-time data is gathered, functions such as the fusion of two parts data, storage, transmission.
In addition, vehicle-bone monitoring device is arranged in the cabinet based on compact PCI (CPCI, Compact Peripheral Component Interconnect) bus design, has higher reliability to guarantee vehicle-bone monitoring device, adapts to adverse circumstances such as train vibration.
2, ground data center
CIR utilization state dynamic monitoring system ground data center; Monitor in real time according to the data of being sent on ground; Concrete function is to realize functions such as the storage administration of CIR utilization status data, historical contrast, association analysis, analysis-by-synthesis, demonstration; Through analyzing, in time grasp the operating state of the CIR equipment working state and the miscellaneous equipment that is associated thereof, for maintenance work provides foundation.
The ground data center adopts the pattern of server to carry out framework, supports a plurality of users to visit simultaneously.Its Hardware configuration can be carried out crop configuration according to its scale, adopts multiple servers to realize, even adopts the separate unit server to realize a plurality of functions.
For a specific embodiment at ground data center, comprising: database server, apps server, WEB server, the communication server and the network equipment etc.
Database server is realized storage and the management function to monitoring initial data and user data.
The communication server, operational communications software, through the ground integrated network equipment of car, communicating by letter with vehicle-bone monitoring device in realization ground data center, accomplishes the receiving function of Monitoring Data.
Apps server, operation comprehensive analysis processing software is realized functions such as the inquiry of Monitoring Data, historical contrast, related analysis-by-synthesis.
The WEB server realizes that remote terminal user is to access functions such as the data query of ground data center, downloads.
Ground data center formation and DFD are as shown in Figure 4.The communication server receives data, with depositing database server after the data qualification in.Ground data central user terminal and the user terminal that is arranged in other positions; Data center server sends the instruction of data query, download and analysis earthward; Apps server and WEB server access database server, perhaps the WEB server obtains Monitoring Data and related data through apps server accessing database server; After carrying out further analyzing and processing, inquiry, download and analysis processing result are returned user terminal show and preserve.
Ground data center communication software flow chart is as shown in Figure 5.The operation of communication server communication software, at first foundation is connected with the communication of vehicle-bone monitoring device, after communication connects foundation; Receive the data that vehicle-bone monitoring device is sent in real time; The data that receive after validity check is passed through, the data that receive are carried out classification processing, be stored in the associated databases.
Ground data center comprehensive analysis processing software flow pattern is as shown in Figure 6.Comprehensive analysis processing software; Obtain user instruction, if the user instruction of inquiry, download classification, then according to different condition or condition combinations such as time, circuit, vehicle or affiliated units; Accessing database; Obtain data, after the line data of the going forward side by side combination, Query Result or data file are returned the terminal use; If other user instruction of analysis classes, then want the analysis result that obtains according to the user, accessing database, obtain related data, data are carried out historical comparative analysis or related analysis-by-synthesis, and analysis result is returned the terminal use.
3, the ground integrated network equipment of car
The ground integrated network equipment design logic of car is as shown in Figure 3.
On the one hand, the ground integrated network equipment of CIR utilization state dynamic monitoring system car is implemented in the train travelling process, uses status data to be sent to the function at ground data center in real time from vehicle-bone monitoring device CIR.The ground integrated network equipment of car adopts the radio communication standard to connect vehicle-bone monitoring device and ground data center.Especially, through the ground integrated network equipment of car, vehicle-bone monitoring device for example adopts with communicating by letter of ground data center: radio communication standards such as GSM-R, GSM or 3G realize.Here, the ground integrated network equipment of car can or select a certain communication standard to realize the automatic transmission of Monitoring Data according to the cordless communication network situation artificial selection of train operation circuit automatically.
On the other hand, the ground integrated network equipment of car can pass through the Internet or railway private network, connects ground data center and data inquiry terminal, realizes communication connection and data interaction between ground data center and each data inquiry terminal.
4, data inquiry terminal
CIR utilization state dynamic monitoring system data inquiry terminal; Major function is to be used for long-range visit to ground data center; The train or the EMUs CIR that can show in the due authority scope in real time, are concerned about use status data, can show the result of ground data center analysis-by-synthesis, historical analysis.Data inquiry terminal can be arranged in any places that grid connected such as the Ministry of Railways, Railway Bureau, communication section, the visit of ground data center is not received the restriction in time, place.
In sum; According to project or project planning; CIR utilization state dynamic monitoring system vehicle-bone monitoring device is installed on any locomotive, train, the EMUs that dispose CIR equipment wait for bus, and realizes in transit, real-time collection, preliminary treatment and sending function to CIR equipment utilization state information; The ground data center is arranged in the Ministry of Railways, or Railway Bureau or communication section; Or be arranged in the unit of other planning, through the ground integrated network equipment of car, vehicle-bone monitoring device in the network is connected with the ground data center; Realized at the ground data center; To storage, the management of all CIR monitoring informations in the network, real time inspection CIR utilization state information in transit, and realize that CIR uses the analysis-by-synthesis of state information.According to user's needs; Data inquiry terminal is arranged in the correct position of user's appointment; Such as: be arranged in office of authorities of the Ministry of Railways, office of authorities of Railway Bureau, communication section maintenance shop etc.; Perhaps relevant leader offices etc. realize the real time access to ground data center, check the CIR equipment utilization state set relevant information of institute's care train; Check CIR device history comparative analysis result and Comprehensive analysis results etc., data inquiry terminal does not receive the constraint in time, place to the visit of ground data center.
Above-described embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the monitoring system of a railway locomotive integration radio communication apparatus utilization state is implemented dynamic monitoring to the utilization state of railway locomotive integration radio communication apparatus, it is characterized in that, comprising:
Vehicle-bone monitoring device is installed on the locomotive that disposes railway locomotive integration radio communication apparatus, in transit and image data in real time, and outwards send data after treatment;
Monitor according to the data of being sent on ground in real time at the ground data center; And
The ground integrated network equipment of car adopts the radio communication standard, and vehicle-bone monitoring device is connected with the ground data center.
2. monitoring system according to claim 1, said vehicle-bone monitoring device comprises:
Communication module is connected with railway locomotive integration radio communication apparatus, gathers the initial data of railway locomotive integration radio communication apparatus utilization state;
The related data acquisition module is gathered the data relevant with locomotive operation;
The data storage processing module is connected with said related data acquisition module with said communication module respectively, is used for initial data is stored and handled with relevant data, forms railway locomotive integration radio communication apparatus utilization state analysis data;
Data transmission blocks is connected with said data storage processing module, receives railway locomotive integration radio communication apparatus utilization state analysis data and outwards transmission that said data storage processing module forms; And
Power module is used to provide the working power of said vehicle-mounted checkout gear.
3. monitoring system according to claim 2, said vehicle-bone monitoring device are arranged in the cabinet based on the design of compact pci bus.
4. monitoring system according to claim 2, said related data acquisition module is a space-time synchronous acquisition module, is used to gather the space-time data of locomotive operation.
5. monitoring system according to claim 4, the space-time data of said locomotive operation are mileage or gps data.
6. monitoring system according to claim 1, said ground data center adopt the pattern of server to carry out framework.
7. monitoring system according to claim 6, said ground data center comprises:
The aggregation of data analysis module; The data that contrast and analysis vehicle-bone monitoring device are sent, Data Storage, storage and leading subscriber data, primary monitoring data; Communication module; Through the ground integrated network equipment of car, set up communicating by letter of ground data center and vehicle-bone monitoring device, receive Monitoring Data in real time.
8. monitoring system according to claim 1, wherein the radio communication standard is GSM-R, GSM or 3G.
9. monitoring system according to claim 1 also comprises data inquiry terminal, is used for remote access ground data center, shows the data that the ground data center provides in real time.
10. monitoring system according to claim 9, wherein the ground integrated network equipment of car through the Internet or railway private network, connects ground data center and data inquiry terminal.
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| CN102830668A (en) * | 2012-08-13 | 2012-12-19 | 广东好帮手电子科技股份有限公司 | Multi-sensor integration based automotive transport monitoring system |
| CN104125114A (en) * | 2014-08-01 | 2014-10-29 | 中国铁道科学研究院 | CIR (cab integrated radio) equipment operation status real-time monitoring system |
| CN104184790A (en) * | 2014-04-08 | 2014-12-03 | 河南思维自动化设备股份有限公司 | Electrical vehicle-mounted equipment quality remote monitoring method and system |
| CN104506794A (en) * | 2014-10-31 | 2015-04-08 | 北京交通大学 | Integrated monitoring system of train |
| CN104742942A (en) * | 2015-04-17 | 2015-07-01 | 泉州市铁通电子设备有限公司 | Wireless dispatching communication system control center of railway trains |
| CN105206026A (en) * | 2015-10-16 | 2015-12-30 | 河南蓝信科技股份有限公司 | Train-ground transmission platform for motor train unit |
| CN106896296A (en) * | 2017-04-18 | 2017-06-27 | 河北中车科技发展有限公司 | High-speed railway traction power supply signal monitoring system and method |
| CN107547613A (en) * | 2016-06-29 | 2018-01-05 | 河南蓝信软件有限公司 | EMUs information of vehicles dynamic monitoring method and its system |
| CN107547611A (en) * | 2016-06-28 | 2018-01-05 | 河南蓝信科技股份有限公司 | Cab integrated radio communication dynamic monitoring method and its system |
| CN108322887A (en) * | 2017-12-19 | 2018-07-24 | 北京交通大学 | A kind of wireless multi-mode land mobile communication system based on study |
| CN108501983A (en) * | 2017-02-24 | 2018-09-07 | 北京思维鑫科信息技术有限公司 | Mobile unit operating state monitoring system |
| CN108909777A (en) * | 2018-07-13 | 2018-11-30 | 洪清喜 | A kind of railway CIR basic data analysis verifying equipment |
| CN110460493A (en) * | 2019-07-17 | 2019-11-15 | 高新兴创联科技有限公司 | Method based on railway locomotive integration radio communication apparatus operation data simplation verification |
| CN111103154A (en) * | 2019-12-28 | 2020-05-05 | 深圳市长龙铁路电子工程有限公司 | Remote monitoring method for locomotive signal equipment |
| CN113347566A (en) * | 2021-05-31 | 2021-09-03 | 国能朔黄铁路发展有限责任公司 | Locomotive communication equipment monitoring method, device and system |
| CN116980855A (en) * | 2023-09-20 | 2023-10-31 | 天津七一二移动通信有限公司 | Centralized railway CIR line positioning system based on network and implementation method |
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| CN102830668A (en) * | 2012-08-13 | 2012-12-19 | 广东好帮手电子科技股份有限公司 | Multi-sensor integration based automotive transport monitoring system |
| CN104184790A (en) * | 2014-04-08 | 2014-12-03 | 河南思维自动化设备股份有限公司 | Electrical vehicle-mounted equipment quality remote monitoring method and system |
| CN104125114A (en) * | 2014-08-01 | 2014-10-29 | 中国铁道科学研究院 | CIR (cab integrated radio) equipment operation status real-time monitoring system |
| CN104506794B (en) * | 2014-10-31 | 2018-07-27 | 北京交通大学 | A kind of train comprehensive monitoring system |
| CN104506794A (en) * | 2014-10-31 | 2015-04-08 | 北京交通大学 | Integrated monitoring system of train |
| CN104742942A (en) * | 2015-04-17 | 2015-07-01 | 泉州市铁通电子设备有限公司 | Wireless dispatching communication system control center of railway trains |
| CN105206026A (en) * | 2015-10-16 | 2015-12-30 | 河南蓝信科技股份有限公司 | Train-ground transmission platform for motor train unit |
| CN107547611A (en) * | 2016-06-28 | 2018-01-05 | 河南蓝信科技股份有限公司 | Cab integrated radio communication dynamic monitoring method and its system |
| CN107547613A (en) * | 2016-06-29 | 2018-01-05 | 河南蓝信软件有限公司 | EMUs information of vehicles dynamic monitoring method and its system |
| CN108501983A (en) * | 2017-02-24 | 2018-09-07 | 北京思维鑫科信息技术有限公司 | Mobile unit operating state monitoring system |
| CN108501983B (en) * | 2017-02-24 | 2021-01-22 | 北京思维鑫科信息技术有限公司 | Vehicle-mounted equipment running state monitoring system |
| CN106896296B (en) * | 2017-04-18 | 2023-06-13 | 河北中车科技发展有限公司 | High-speed railway traction power supply signal monitoring system and method |
| CN106896296A (en) * | 2017-04-18 | 2017-06-27 | 河北中车科技发展有限公司 | High-speed railway traction power supply signal monitoring system and method |
| CN108322887A (en) * | 2017-12-19 | 2018-07-24 | 北京交通大学 | A kind of wireless multi-mode land mobile communication system based on study |
| CN108909777A (en) * | 2018-07-13 | 2018-11-30 | 洪清喜 | A kind of railway CIR basic data analysis verifying equipment |
| CN108909777B (en) * | 2018-07-13 | 2023-07-07 | 洪清喜 | Railway CIR basic data analysis and verification equipment |
| CN110460493A (en) * | 2019-07-17 | 2019-11-15 | 高新兴创联科技有限公司 | Method based on railway locomotive integration radio communication apparatus operation data simplation verification |
| CN111103154A (en) * | 2019-12-28 | 2020-05-05 | 深圳市长龙铁路电子工程有限公司 | Remote monitoring method for locomotive signal equipment |
| CN113347566B (en) * | 2021-05-31 | 2023-05-23 | 国能朔黄铁路发展有限责任公司 | Locomotive communication equipment monitoring method, device and system |
| CN113347566A (en) * | 2021-05-31 | 2021-09-03 | 国能朔黄铁路发展有限责任公司 | Locomotive communication equipment monitoring method, device and system |
| CN116980855A (en) * | 2023-09-20 | 2023-10-31 | 天津七一二移动通信有限公司 | Centralized railway CIR line positioning system based on network and implementation method |
| CN116980855B (en) * | 2023-09-20 | 2024-02-13 | 天津七一二移动通信有限公司 | Centralized railway CIR line positioning system based on network and implementation method |
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Application publication date: 20120801 |