CN108609033A - Train based on satellite difference positioning monitors system - Google Patents

Train based on satellite difference positioning monitors system Download PDF

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Publication number
CN108609033A
CN108609033A CN201810435560.8A CN201810435560A CN108609033A CN 108609033 A CN108609033 A CN 108609033A CN 201810435560 A CN201810435560 A CN 201810435560A CN 108609033 A CN108609033 A CN 108609033A
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China
Prior art keywords
train
satellite
data
ground
accurately positioned
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Pending
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CN201810435560.8A
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Chinese (zh)
Inventor
杨吉钊
冯常明
韩奇彬
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Chengdu Jiuyi Intelligent Polytron Technologies Inc
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Chengdu Jiuyi Intelligent Polytron Technologies Inc
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Application filed by Chengdu Jiuyi Intelligent Polytron Technologies Inc filed Critical Chengdu Jiuyi Intelligent Polytron Technologies Inc
Priority to CN201810435560.8A priority Critical patent/CN108609033A/en
Publication of CN108609033A publication Critical patent/CN108609033A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00Control, warning or like safety means along the route or between vehicles or trains
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
    • B61L25/02Indicating or recording positions or identities of vehicles or trains
    • B61L25/025Absolute localisation, e.g. providing geodetic coordinates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L27/00Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
    • B61L27/20Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61LGUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2205/00Communication or navigation systems for railway traffic
    • B61L2205/04Satellite based navigation systems, e.g. global positioning system [GPS]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The present invention provides a kind of trains based on satellite difference positioning to monitor system, including:Train-installed management system, ground-based server, satellite are accurately positioned subsystem and monitoring center, wherein, the train-installed management system is connect with the ground-based server, data are exported the satellite data after matching and train status data to the ground-based server by the train-installed management system in real time for matching satellite data and train status data with train id information, by wireless network;The satellite is accurately positioned subsystem and is connect with the ground-based server, it includes satellite data system, satellite difference base station and Train Dynamic position solving unit that the satellite, which is accurately positioned subsystem, wherein, satellite data of the satellite difference base station for will be observed that in real time, by network system by the way of wired or wireless, to complete the correction of train location data, being accurately positioned for train is carried out.

Description

Train based on satellite difference positioning monitors system
Technical field
The present invention relates to monitoring systems technology fields, are supervised in particular to a kind of train based on satellite difference positioning Examining system.
Background technology
Currently, being to be adopted according to the scenes Railway Bureau TDCS to the method for the dynamic tracking of running train in the railway system now The occupancy of the signalling arrangement track circuit of collection and go out the position of clear condition adjudgement train into line trace, is checked using wireless running number System carries out running number automatic Check and obtains train number number, and realizes and sentence into line trace to the orientation and trend of train in operation It is disconnected.
Automatic Control Systems for train operation system (ATC) either in railway track traffic system or high ferro train operation It is severe meeting in the systems such as control system (CTCS) and track circuit therein, wired, wireless and radio block center (RBC) The geological disasters such as meteorological condition, thunder and lightning impacting with high pressure or mud-rock flow, easily cause block system to break down, make track circuit without Method correctly transmits the information of semaphore, and current train-installed control device is only capable of by track circuit, ground transponder, rail The information for the signal acquisition current line that the ground installations such as other cable, terrestrial wireless communication base station provide, once these ground arrange Vehicle operation control breaks down or vehicle scheduling mistake occurs, and other side cannot be timely and effectively obtained between train close to each other Transport condition, the block section that train operator can not ensure the safe distance between train, and enter front, which will will appear, to be closed There is possibility of two trains that same direction, same station track are run in operation in plug section, this is possible to cause train colliding Serious accident.
Since existing train positioning system is low to the positioning accuracy of train, consequently, it is possible to lead to serious accident, Its reason is that not carrying out train using satellite base station when being positioned to train is accurately positioned.
Invention content
In consideration of it, the present invention proposes a kind of train monitoring system positioned based on satellite difference, it is intended to solve raising pair The working efficiency of the detecting system of train monitoring.
On one side, the present invention proposes a kind of train monitoring system positioned based on satellite difference, including:It is train-installed Management system, ground-based server, satellite are accurately positioned subsystem and monitoring center, wherein the train-installed management system with The ground-based server connection, the train-installed management system are used to believe satellite data and train status data with train ID Breath is matched, and data are exported the satellite data after matching and train status data to the ground in real time by wireless network Server;The satellite is accurately positioned subsystem and is connect with the ground-based server, and the satellite is accurately positioned subsystem and includes Satellite data system, satellite difference base station and Train Dynamic position solving unit, wherein the satellite difference base station is used for In real time it will be observed that satellite data, by network system by the way that in the way of wired or wireless, satellite difference data are exported Train-installed mobile terminal to ground-based server and the satellite difference base station coverage area positions number to complete train According to correction, carry out being accurately positioned for train;Train Dynamic position solving unit is for speed, the wheel footpath to the train It is monitored in real time, to the position of train described in real time calibration;The ground-based server is used to carry out data processing and transmission, Information is transmitted between the ground-based server is additionally operable to vehicle ground, acquires the satellite difference data;Ground described in the monitoring center Server connects, the data for receiving the ground-based server output, to be monitored to the train.
Further, the ground-based server includes monitoring central server and train supervision terminal, wherein the monitoring Central server is used to receive satellite location data, satellite difference data, yard microcomputer interlocking data and Train Dynamic data, and According to the accurate train positioning result of the data acquisition;The train supervision terminal, for locomotive, vehicle, track, circuit Carry out tracing management.
Further, it further includes high-precision electronic map that the satellite, which is accurately positioned subsystem, the high-precision electronic Figure is for train positioning result described in real-time display.
Further, the ground-based server, for generating the high-precision electronic map.
Further, the ground-based server is additionally operable to information transmission, train safety monitoring, train tracking, number between vehicle ground According to record, status early warning.
Further, the ground-based server is additionally operable to database maintenance, user management, network security management.
The beneficial effects of the present invention are be accurately positioned subsystem by train-installed management system, ground-based server, satellite System matches work, and acquisition train is accurately positioned the real time status information of data and train, and will be accurately positioned data and shape State information, which is exported to monitoring center, is monitored and manages control, greatly improves the working efficiency of monitoring system, ensures The safe operation of train.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit are common for this field Technical staff will become clear.Attached drawing only for the purpose of illustrating preferred embodiments, and is not considered as to the present invention Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the structural schematic diagram that the embodiment of the present invention monitors system based on the train that satellite difference positions.
Specific implementation mode
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure Completely it is communicated to those skilled in the art.It should be noted that in the absence of conflict, embodiment in the present invention and Feature in embodiment can be combined with each other.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig.1, it monitors the structural representation of system for the embodiment of the present invention based on the train that satellite difference positions Figure.The embodiment of the present invention proposes a kind of train monitoring system positioned based on satellite difference, including:Train-installed management system System, ground-based server, satellite are accurately positioned subsystem and monitoring center, wherein the train-installed management system with describedly Face server connection, the train-installed management system are used to carry out satellite data and train status data with train id information Data are exported the satellite data after matching and train status data to the ground service by matching in real time by wireless network Device;The satellite is accurately positioned subsystem and is connect with the ground-based server, and it includes satellite that the satellite, which is accurately positioned subsystem, Data system, satellite difference base station and Train Dynamic position solving unit, wherein the satellite difference base station is for real-time The satellite data that ground will be observed that, by network system by the way that in the way of wired or wireless, satellite difference data are exported to ground Train-installed mobile terminal in face server and the satellite difference base station coverage area, to complete train location data Correction, carries out being accurately positioned for train;Train Dynamic position solving unit is used for the speed to the train, wheel footpath carries out Monitoring in real time, to the position of train described in real time calibration;The ground-based server is described for carrying out data processing and transmission Information is transmitted between ground-based server is additionally operable to vehicle ground, acquires the satellite difference data;Ground service described in the monitoring center Device connects, the data for receiving the ground-based server output, to be monitored to the train.
Specifically, the ground-based server includes monitoring central server and train supervision terminal, wherein the monitoring Central server is used to receive satellite location data, satellite difference data, yard microcomputer interlocking data and Train Dynamic data, and According to the accurate train positioning result of the data acquisition;The train supervision terminal, for locomotive, vehicle, track, circuit Carry out tracing management.It further includes high-precision electronic map that the satellite, which is accurately positioned subsystem, and the high-precision electronic map is used The train positioning result described in real-time display.
Specifically, the ground-based server, for generating the high-precision electronic map.The ground-based server, also For information transmission, train safety monitoring, train tracking, data record, status early warning between vehicle ground.The ground-based server, also For database maintenance, user management, network security management.
It is understood that being accurately positioned subsystem by train-installed management system, ground-based server, satellite and matching Work, acquisition train is accurately positioned the real time status information of data and train, and will be accurately positioned data and status information is defeated Go out to monitoring center to be monitored and manage control, greatly improve the working efficiency of monitoring system, ensures the peace of train Row for the national games.
Specifically, railway trains monitoring center system is used to handle the data received, the railway trains monitoring Centring system is additionally operable to information transmission, train safety monitoring, train tracking, data record, status early warning between vehicle ground;Railway trains Monitoring center system includes monitoring central server and train supervision terminal, wherein the monitoring central server is for receiving Satellite location data, satellite difference data, yard microcomputer interlocking data and Train Dynamic data, and according to data acquisition essence True train positioning result;The train supervision terminal, for carrying out tracing management to locomotive, vehicle, track, circuit.It is described Railway trains monitoring center system, for generating the high-precision electronic map.Railway trains monitoring center system, is additionally operable to vehicle Information transmission, train safety monitoring, train tracking, data record, status early warning between ground.Railway trains monitoring center system, also For database maintenance, user management, network security management.
Specifically, railway trains monitoring center manages system by server, monitor terminal (PC computers) and ground monitoring The compositions such as software.
(1) monitoring central server
In yard region, satellite location data is received by wireless network or landline network, satellite difference data, is stood After field microcomputer interlocking data and Train Dynamic data, server background software is resolved by decoding, and obtains accurate train positioning As a result, the result goes out train position, motion track and operating status by yard high-precision electronic map (GIS) real-time display, Positioning accuracy is up to Centimeter Level.For section without track switch section track, moved towards by satellite One-Point Location and track, in conjunction with train Operating status and own dynamic push algorithm software correction, can be effectively ensured locomotive any time is accurately positioned in real time.
(2) train supervision terminal
Train supervision terminal refers to the administrative staff's desktop computer being connected in ground network system, mainly for easily Tracing management of each professional in face to management essentials such as locomotive, vehicle, track, circuits.
Railway trains monitoring center system mainly completes data processing, high-precision electronic map (GIS) generates, vehicle-ground letter Transmission, train safety monitoring, train tracking, data record, status early warning etc. are ceased, database maintenance, user management, net are also completed The functions such as network safety management.
Specifically, it includes satellite data system, satellite difference base station and Train Dynamic that satellite, which is accurately positioned subsystem, Position solving unit, wherein satellite data of the satellite difference base station for will be observed that in real time utilizes network system By wired or wireless mode, satellite difference data are exported to ground-based server and the satellite difference base station and cover model Train-installed mobile terminal in enclosing carries out being accurately positioned for train to complete the correction of train location data;The train is dynamic State position solving unit for monitoring speed, the wheel footpath of the train in real time, to the position of train described in real time calibration It sets.It further includes high-precision electronic map that satellite, which is accurately positioned subsystem, and the high-precision electronic map is for described in real-time display Train positioning result.
Specifically, satellite-based " vehicle-ground ", " vehicle-vehicle " communication system, by acquiring train operation state number Being accurately positioned in real time for train Centimeter Level is realized according to, yard track switch detection data, is calculated in conjunction with the software of entirely autonomous intellectual property Method, high-precision electronic map realize train, track, platform, scheduling holographyization intelligent operation control system.
Satellite be accurately positioned subsystem by satellite data system, satellite difference base station, high-precision electronic map (GIS) and Train Dynamic position solving unit composition.
Satellite difference base station, as dynamic difference positioning reference station, are built upon railroad track or yard region can be real When receive satellite system data, and the information work station that seek difference can be calculated opposite observation point.When satellite difference base station works, In real time it will be observed that satellite data, by network system by the way of wired or wireless, by satellite difference data transmission To the train-installed mobile terminal in ground-based server and this base station coverage area, to complete the correction of train location data, Realize being accurately positioned for train.
Simultaneously by Train Dynamic position solving unit, speed, the wheel footpath of train are monitored in real time, real time calibration row Truck position, to realize that the train of Centimeter Level is accurately positioned.
It is understood that the present embodiment by be arranged train-installed management system, railway trains monitoring center system and Satellite is accurately positioned subsystem, carries out the acquisition of train status data, satellite location data, and combined high precision electronic map is believed Breath resolves train operation state, yard switch status information, and it is accurate in real time fixed to be carried out to train position in conjunction with satellite data Position, while by the way that Train Dynamic position solving unit is arranged, speed, the wheel footpath of train are monitored in real time, real time calibration row Truck position, to realize that the train of Centimeter Level is accurately positioned.This system is not only realized and is accurately positioned to train, and this system Simple in structure, operational efficiency is high, and operating cost is low.Also, this system can also output train control command, accurate to train Can also be realized on the basis of positioning to train automatically control and intelligent operation management.
In alternatively possible realization method based on above-described embodiment, unlike the embodiments above, this embodiment party The satellite Precise Position System of formula further includes orbit information management system, orbit information management system be used for by Che-vehicle, Car-ground communication system carries out the status monitoring of platform screen door and track switch.By Che-vehicle, car-ground communication system, platform is realized Shield door, track switch status monitoring, realize the intelligent management of orbit information.
Orbit information manages system process flow:Observation data and locomotive are obtained by satellite positioning GNSS reference base station The other information of positioning flowing terminal output, observation data and other information are packaged into data packet and are transmitted, pass through decoding After resolving, respectively by the data transmission after decoding resolving to map operation tracing and monitoring unit and coordinate transformation projective transformation Unit;Coordinate transformation projection transformation unit matches the map reference data of reception with map, through map match units match After coordinate, data are exported to map operation tracing and monitoring unit, map operation tracing and monitoring unit combination precise electronic map With output data after spatial geographic information, the requirement of data combination actual job, train track and other data outputs of output It manages traffic order to locomotive and positions flowing terminal.
This system is in information source points such as acquisition locomotive status data, satellite location data, track high-precision electronic maps On the basis of, train operation state, yard switch status information are resolved, train position is carried out in conjunction with satellite data accurate in real time Positioning, output train control command, realize train automatically control and intelligent operation management.
Specifically, 1, train intelligent navigation and automatic control function:
(1) by automatically controlling adding for train by intelligent guidance system and operational plan with train controller interface The Function for Automatic Pilot such as speed, braking, speed limit, parking.
(2) distance of the train away from front and back circuit (track switch), blind siding etc. is judged automatically, and safe distance can be set Alarm, by with train controller interface, occurred with the accidents such as preventing from rushing, squeezing, take off, hit.
(3) in the form of line map or service chart, real-time display train is in the exact position of current orbit.
(4) operating status (speed, direction etc.) of real-time display current train.
(5) real-time display train front, rear yard, adjacent vehicle, switch status, and show at a distance from current location.
(6) in a manner of voice broadcast, yard in front of locomotive, adjacent vehicle, switch status and distance are reminded;Remind track operation Protect point, circuit particular point, speed limit point etc..
(7) by with train controller interface, control train in abnormal operational conditions, (such as overrun a signal is driven in violation of rules and regulations Sail, line fault etc.) automatic stopping.
(8) judgement distance of the train away from front locomotive, realization avoid rear-end collision close to alarm, speed limit or parking automatically.
(9) drive over the speed limit simultaneously speed limit of the automatic judgement train in predetermined region.
(10) by car-ground communication system, with track switch, platform screen door into line interface, realization automatically controls it.
(11) by with train controller interface, the automatic whistling of train in/out station, safe early warning.
(12) in special circumstances it manual intervention speed limit, parking and manually takes over.
2, intelligent operation management function
The management of basic information
(1) Train Conductors, operation management personnel's basic information management function are provided
(2) train (vehicle), yard, track switch, track section information management function
(3) yard and section high-precision electronic mapping and adjustment function
(4) yard and interval orbit circuit particular point geographical coordinate calibrating function
The dynamic management of vehicle-vehicle, vehicle-ground, vehicle-people
(1) train position state, the real time monitoring of operating status
(2) the automatic of train operation plan issues and executes
(3) train running information automatically recording and reports
(4) train arrival, storage information automatically recording and report
(5) it the transmission of the information of interim dynamic monitoring point and is reported (containing provisional repair, geological disaster or other danger along Dangerous situation condition), and pass through the speed limit of train automatic controlling system realization train or parking.
(6) Che-vehicle, car-ground, vehicle-people real-time voice intercommunication function
Data record and historical data recovering and analysis
(1) in ground-based server system, the total data of all locomotives and line status can whole be recorded.
(2) can recovering and analysis according to condition be carried out to the travelling data of arbitrary train or arbitrary period.
Specifically, this system hardware, which takes 2 × 2, takes the double hot standby independent design thinkings of redundancy more than 2, system work ensure that The high reliability and high stability of work.System backup power supply uses the power adaptation interface of adaptive train environment, built-in intelligence Charge-discharge circuit, to ensure system normal power supply or the battery backup when dispatch from foreign news agency lacks;
(1) key equipment of this system is all designed using double unit redundancies, i.e., system data occurs, detection, communicates, place Reason and result output and power supply are all configured using double units, are verified according to equipment room reliability, are ensured system in a certain unit When equipment fault, the normal work of system is not interfered with;
(2) this system uses modularized design to unit, can the working condition of automatic checkout equipment itself and real-time Tracking equipment operating condition, related monitoring result may be automatically transferred to external equipment or monitoring center by ad-hoc network, once Discovering device failure, system is by real-time prompting or alarm.
Also, this system ensures the real-time and standard of data using the train monitoring of multiple software algorithm and verification scheme True property.
It is understood that the present embodiment by be arranged train-installed management system, railway trains monitoring center system and Satellite is accurately positioned subsystem, carries out the acquisition of train status data, satellite location data, and combined high precision electronic map is believed Breath resolves train operation state, yard switch status information, and it is accurate in real time fixed to be carried out to train position in conjunction with satellite data Position, while by the way that Train Dynamic position solving unit is arranged, speed, the wheel footpath of train are monitored in real time, real time calibration row Truck position, to realize that the train of Centimeter Level is accurately positioned.This system is not only realized and is accurately positioned to train, and this system Simple in structure, operational efficiency is high, and operating cost is low.Also, this system is by output train control command, to train, track switch and Platform screen door carries out automatically controlling, can also be realized on the basis of being accurately positioned to train to train automatically control and intelligence Operation management can be changed, greatly improve the control efficiency of automatic control system, reduce the operation cost of automatic control system.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (6)

1. a kind of train based on satellite difference positioning monitors system, which is characterized in that including:Train-installed management system, Face server, satellite are accurately positioned subsystem and monitoring center, wherein
The train-installed management system is connect with the ground-based server, and the train-installed management system is used for satellite number It is matched with train id information according to train status data, data is exported to the satellite number after matching in real time by wireless network According to train status data to the ground-based server;
The satellite is accurately positioned subsystem and is connect with the ground-based server, and it includes satellite that the satellite, which is accurately positioned subsystem, Data system, satellite difference base station and Train Dynamic position solving unit, wherein
Satellite data of the satellite difference base station for will be observed that in real time, is passed through wired or wireless using network system Mode, satellite difference data are exported train-installed to ground-based server and the satellite difference base station coverage area Mobile terminal carries out being accurately positioned for train to complete the correction of train location data;
Train Dynamic position solving unit for monitoring speed, the wheel footpath of the train in real time, to real-time school The position of the accurate train;
The ground-based server is for carrying out data processing and transmission, and information is transmitted between the ground-based server is additionally operable to vehicle ground, Acquire the satellite difference data;
Ground-based server described in the monitoring center connects, the data for receiving the ground-based server output, with to described Train is monitored.
2. the train according to claim 1 based on satellite difference positioning monitors system, which is characterized in that the ground clothes Business device includes monitoring central server and train supervision terminal, wherein the monitoring central server is for receiving satellite positioning Data, satellite difference data, yard microcomputer interlocking data and Train Dynamic data, and according to the accurate train of the data acquisition Positioning result;
The train supervision terminal, for carrying out tracing management to locomotive, vehicle, track, circuit.
3. the train according to claim 2 based on satellite difference positioning monitors system, which is characterized in that
It further includes high-precision electronic map that the satellite, which is accurately positioned subsystem, and the high-precision electronic map is used for real-time display The train positioning result.
4. the train according to claim 3 based on satellite difference positioning monitors system, which is characterized in that
The ground-based server, for generating the high-precision electronic map.
5. the train according to claim 1 or 4 based on satellite difference positioning monitors system, which is characterized in that describedly Face server is additionally operable to information transmission, train safety monitoring, train tracking, data record, status early warning between vehicle ground.
6. the train according to claim 1 based on satellite difference positioning monitors system, which is characterized in that
The ground-based server is additionally operable to database maintenance, user management, network security management.
CN201810435560.8A 2018-05-09 2018-05-09 Train based on satellite difference positioning monitors system Pending CN108609033A (en)

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CN108622139A (en) * 2018-05-10 2018-10-09 成都九壹通智能科技股份有限公司 Yard and locomotive real-time information interaction method
CN109849978A (en) * 2019-03-20 2019-06-07 武汉钢铁有限公司 A kind of locomotive driving detection method, system and computer readable storage medium
CN110231632A (en) * 2019-06-27 2019-09-13 Oppo广东移动通信有限公司 Localization method, terminal, network access equipment, electronic equipment, storage medium
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CN111409670A (en) * 2020-04-16 2020-07-14 合肥工大高科信息科技股份有限公司 Auxiliary monitoring system and method
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CN112429037A (en) * 2020-11-05 2021-03-02 北京全路通信信号研究设计院集团有限公司 Electronic map processing method and device based on satellite positioning

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CN108622141A (en) * 2018-05-10 2018-10-09 成都九壹通智能科技股份有限公司 Yard satellite positioning difference information acquisition system
CN108622139A (en) * 2018-05-10 2018-10-09 成都九壹通智能科技股份有限公司 Yard and locomotive real-time information interaction method
CN110466565A (en) * 2018-05-10 2019-11-19 成都九壹通智能科技股份有限公司 Satellite Precise Position System for train
CN109849978A (en) * 2019-03-20 2019-06-07 武汉钢铁有限公司 A kind of locomotive driving detection method, system and computer readable storage medium
CN110231632A (en) * 2019-06-27 2019-09-13 Oppo广东移动通信有限公司 Localization method, terminal, network access equipment, electronic equipment, storage medium
CN111409670A (en) * 2020-04-16 2020-07-14 合肥工大高科信息科技股份有限公司 Auxiliary monitoring system and method
CN111409670B (en) * 2020-04-16 2022-03-22 合肥工大高科信息科技股份有限公司 Auxiliary monitoring system and method
CN111703474A (en) * 2020-05-29 2020-09-25 广州南方卫星导航仪器有限公司 Rail vehicle dispatching system and method based on high-precision GNSS navigation system
CN112092865A (en) * 2020-09-14 2020-12-18 交控科技股份有限公司 Precise train parking method, system and device based on 5G positioning
CN112429037A (en) * 2020-11-05 2021-03-02 北京全路通信信号研究设计院集团有限公司 Electronic map processing method and device based on satellite positioning

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Application publication date: 20181002