CN205769347U - A kind of train Precise Position System based on comprehensive location - Google Patents
A kind of train Precise Position System based on comprehensive location Download PDFInfo
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- CN205769347U CN205769347U CN201620591136.9U CN201620591136U CN205769347U CN 205769347 U CN205769347 U CN 205769347U CN 201620591136 U CN201620591136 U CN 201620591136U CN 205769347 U CN205769347 U CN 205769347U
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Abstract
This utility model relates to a kind of train Precise Position System based on comprehensive location, including Beidou satellite system, also include ground system and onboard system, ground system includes for providing the location service center of train line cartographic information and multiple for providing the difference base station of satellite fix difference information for train, onboard system includes location antenna, positioner and the car-mounted computer being sequentially connected with, location antenna is connected with location service center, difference base station and Beidou satellite system respectively, and location service center and difference base station are all connected with Beidou satellite system；Positioner receives satellite-signal and the difference information of difference base station of Beidou satellite system by location antenna, obtains train location data and be sent to car-mounted computer after carrying out the resolving of satellite fix.Compared with prior art, this utility model has the advantages such as registration.
Description
Technical field
This utility model relates to railway communication field, especially relates to a kind of being accurately positioned based on the comprehensive train positioned and is
System.
Background technology
Current China Railway is in the high-speed developing period, runs, supporting the railway system, the numerous support technologies developed
In, location-based service has shown that its importance, particularly concerning the Train Detection and Identification of safety, dispatch control, safe early warning etc.
Location application system, proposes practical demand to grasp train position accurate, real-time and running status.
The widely used distance measuring method that tests the speed of conventional train alignment system, by speed, location expression system under one-dimensional coordinate system
Coming together, the velocity sensor being selectively mounted on Train Wheel moving axis realizes speed/range measurement, and scheme is simple, be susceptible to do
Disturb.But, along with railway is intelligent, modernization development, related system structure function is increasingly sophisticated, train running speed and service
It is more and more harsher that grade promotes the requirement to train location, wheel spin, the system of the uniform velocity sensor speed-position detection that skids, wears away
About factor cause alignment system optimize in the urgent need to.Successfully answer with " transponder+velocity sensor " integrated mode as representative
For high-speed railway, but, high construction maintenance cost causes the contradiction between its Cost And Performance, constrain autonomy and
The realization of benefit in performance.
Based on " GPS technology+sensor auxiliary positioning " although method can to a certain degree reduce construction and maintenance cost, but
GPS is the exclusive technology of the U.S., and for other countries or area, satellite resource assignment problem becomes this technology as train
One of Main Bottleneck of positioning function solution.
This utility model is the train accurate positioning method of a kind of comprehensive location, and the method is by utilizing epichorial north
Bucket alignment system aided inertial navigation and sensor device realize being accurately positioned of train.System analyzes maturation technically can
Lean on, feasibility good, economically analysis project design and construction put into less, be easier to implement.Analyze in social benefit, the Big Dipper is led
Boat technology combines with railway systems, has expanded the application market of triones navigation system, meets the railway system intelligent, modern
Change growth requirement, improve the safety of railroad train operation.
Utility model content
Defect that the purpose of this utility model is contemplated to overcome above-mentioned prior art to exist and provide a kind of based on comprehensively
The train Precise Position System of location.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of train Precise Position System based on comprehensive location, including Beidou satellite system, also include ground system and
Onboard system, described ground system include for provide train line cartographic information location service center and multiple for for
Train provides the difference base station of satellite fix difference information, and described onboard system includes location antenna, the location dress being sequentially connected with
Putting and car-mounted computer, described location antenna is connected with location service center, difference base station and Beidou satellite system respectively, described
Location service center and difference base station are all connected with Beidou satellite system；
Described positioner is believed by the difference of satellite-signal and difference base station that location antenna receives Beidou satellite system
Breath, obtains train location data and is sent to car-mounted computer after carrying out the resolving of satellite fix.
Described onboard system also includes for providing the used of auxiliary positioning when the satellite-signal of Beidou satellite system is the best
Property guider, this inertial navigation unit is connected with car-mounted computer；
Described positioner is believed by the difference of satellite-signal and difference base station that location antenna receives Beidou satellite system
Breath, obtains train location data after carrying out the resolving of satellite fix, car-mounted computer combine inertial navigation unit and optimize train
Position data.
Described inertial navigation unit includes inertial sensor, velocity sensor and accelerometer.
Described onboard system also includes the input for man-machine interaction and display device, and this input and display device are with vehicle-mounted
Computer connects.
Described input and display device include display.
The described location antenna same time is at least connected with two difference base stations.
Compared with prior art, this utility model has the advantage that
1) have employed difference base station and provide satellite fix difference information for train, the satellite of Beidou satellite system can be believed
Number it is modified, improves precision, simultaneously because differential signal is sent to train with the form of mobile communications network by base station, phase
Ratio satellite-signal, can more stablize, and compares transponder mode, can reduce cost.
2) inertial navigation unit still can complete when satellite signal strength is low location, to depend on for extreme terrains such as tunnels
So can complete the location to train, can be used for when satellite-signal is good improving precision simultaneously.
3) the location antenna same time is at least connected with two difference base stations, it is ensured that the satellite to Beidou satellite system
The reliability that signal is modified.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Wherein: 1, Beidou satellite system, 2, ground system, 3, onboard system, 11, big-dipper satellite, 21, in positioning service
The heart, 22, difference base station, 31, location antenna, 32, positioner, 33, car-mounted computer, 34, inertial navigation unit, 35, input
And display device.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.The present embodiment is with this utility model
Implement premised on technical scheme, give detailed embodiment and concrete operating process, but guarantor of the present utility model
The scope of protecting is not limited to following embodiment.
A kind of train Precise Position System based on comprehensive location, as it is shown in figure 1, include Beidou satellite system 1, also includes
Ground system 2 and onboard system 3,
Beidou satellite system 1 mainly covers the second filial generation big-dipper satellite 11 in China overhead and forms, secondary big-dipper satellite 11
It it is system location information Data Source.Onboard system 3 plays a major role in position fixing process, i.e. carries out train and independently positions.Ground
Plane system 2 provides location auxiliary for onboard system 3.
Onboard system 3 is the nucleus equipment of train location, and the main process of location is executed by.Onboard system 3 mainly by
Car-mounted computer 33, positioner 32, location antenna 31, inertial navigation unit 34 and other sensors and input and display device
35 (offer man machine interface) forms, and location antenna 31, positioner 32 and car-mounted computer 33 are sequentially connected with, inertial navigation in addition
Device 34 and input and display device 35 are all connected with car-mounted computer 33.Positioner 32 is by satellite-signal and current region
Difference information carry out the resolving of satellite fix, be the Main Basis of location.Inertial navigation unit 34 and other sensors are at row
Car enters special environment (such as mountain area or tunnel or without Big Dipper signal area) and provides the location data information of auxiliary.Car-mounted computer
33 combine other auxiliary information (including inertial navigation and data monitoring sensor thereof) according to the result of satellite fix determines train
Exact position, and demarcate on map, interacted with train by input and display device 35, lead to also by satellite simultaneously
Road is uploaded data and is provided ground-based administrators's train position information.
Ground system 2 acts primarily as assosting effect in position fixing process.Ground system 2 is mainly by location service center 21, poor
Dividing base station 22 and other auxiliary equipments composition, location service center 21 and difference base station 22 are all connected with Beidou satellite system 1, also
All being connected with location antenna 31, difference base station 22 mainly produces satellite fix difference information, and broadcasts to mobile unit, to carry
The degree of accuracy of high train location.Ground difference base station 22 needs to be configured according to location requirement and circuit, is responsible for generation administrative
The location difference information in region；Terrestrial positioning service centre participates in the management of train data information, and provides circuit to train
Cartographic information.
The location antenna 31 same time is at least connected with two difference base stations 22, and positioner 32 is connect by location antenna 31
Receive satellite-signal and the difference information of difference base station of Beidou satellite system 1, after carrying out the resolving of satellite fix, obtain train position
Put data, car-mounted computer 33 combine inertial navigation unit 34 and optimize train location data.
In order to obtain location information the most reliably, in full traffic coverage, guarantee the safety of train location information, system
The method using information fusion, utilizes inertial navigation unit 34 and multi sensor combination to carry out positioning safeguards.Integrated positioning is measured
System includes multiple sensors, such as inertial sensor, velocity sensor and acceleration etc..Various sensors and communication terminal are all
Being connected to car-mounted computer 33, car-mounted computer 33 is reserved and vehicle-mounted row control equipment and the interface of inquiry response device.Based on many
In the train integrated positioning system of sensor, different sensors can provide the location measurement information (positional information of broad sense of redundancy
Including train position, speed, course etc.), use multi-Sensor Information Fusion Approach, comprehensive utilization multi-source information to obtain train position
The optimum of the amount of putting or suboptimal estimation, can utilize these redundancies to complete solving of positioning result efficiently.
Onboard system 3 also includes the input for man-machine interaction and display device 35, this input and display device 35 and car
Borne computer 33 connects.Input and display device 35 include display.
It is how to realize train pinpoint that practical work process according to the application is discussed in detail the method.This
Applying for the precision in order to improve system location and rapidity, system completes by the way of setting up big-dipper satellite difference base station
Train based on dipper system quickly positions.Location antenna 31 in onboard system directly receives the difference base station 22 of Near Ground
Information, it is achieved fast accurate positions.In Big Dipper positioner, distinctive RD+RN multimode Big Dipper module, can complete location information
Acquisition (RN module) and positional information upload (RD module).Positioner 32 is carried out during train high-speed cruising in real time
Satellite data captures and processes calculating, and the data after processing are sent to car-mounted computer 33.Meanwhile, inertial navigation unit 34
And other sensors obtain and also can obtain class train and about the data of positional information and send the data to car-mounted computer 33.Vehicle-mounted
The corresponding information of acquisition can be melted merga pass integrated positioning algorithm and realize train elaborate position data by computer 33, and these data can
With mutual with train operator by man machine interface, it is also possible to by satellite channel, data are transmitted in terrestrial positioning service in real time
The heart.Ground-based administrators effectively supervises safe train operation according to train location data combined circuit cartographic information.
Claims (6)
1. a train Precise Position System based on comprehensive location, including Beidou satellite system (1), it is characterised in that also wrap
Including ground system (2) and onboard system (3), described ground system includes the positioning service for providing train line cartographic information
Center (21) and multiple for for train provide satellite fix difference information difference base station (22), described onboard system (3)
Including the location antenna (31) being sequentially connected with, positioner (32) and car-mounted computer (33), described location antenna (31) is respectively
It is connected with location service center (21), difference base station (22) and Beidou satellite system (1), described location service center (21) and poor
Base station (22) is divided all to be connected with Beidou satellite system (1).
A kind of train Precise Position System based on comprehensive location the most according to claim 1, it is characterised in that described car
Loading system (3) also includes the inertial navigation dress for providing auxiliary positioning when the satellite-signal of Beidou satellite system (1) is the best
Putting (34), this inertial navigation unit (34) is connected with car-mounted computer (33).
A kind of train Precise Position System based on comprehensive location the most according to claim 2, it is characterised in that described used
Property guider (34) includes inertial sensor, velocity sensor and accelerometer.
4., according to described a kind of based on comprehensive location train Precise Position System arbitrary in claim 1-3, its feature exists
In, described onboard system (3) also includes the input for man-machine interaction and display device (35), this input and display device (35)
It is connected with car-mounted computer (33).
A kind of train Precise Position System based on comprehensive location the most according to claim 2, it is characterised in that described defeated
Enter and display device (35) includes display.
A kind of train Precise Position System based on comprehensive location the most according to claim 1, it is characterised in that described fixed
Position antenna (31) the same time is at least connected with two difference base stations (22).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857349A (en) * | 2016-06-17 | 2016-08-17 | 上海铁路通信有限公司 | Precise train positioning system based on comprehensive positioning |
| CN108657234A (en) * | 2018-05-07 | 2018-10-16 | 成都九壹通智能科技股份有限公司 | System and method is monitored based on the dynamic train real-time displacement of vehicle |
| CN111077558A (en) * | 2019-12-25 | 2020-04-28 | 交控科技股份有限公司 | Positioning system of rail vehicle and rail transit system |
| CN111252113A (en) * | 2020-01-19 | 2020-06-09 | 合肥工大高科信息科技股份有限公司 | Distributed locomotive positioning method and device based on information consensus |
| CN115635994A (en) * | 2022-11-04 | 2023-01-24 | 北京酷鲨科技有限公司 | Train tail auxiliary positioning method and device |
-
2016
- 2016-06-17 CN CN201620591136.9U patent/CN205769347U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857349A (en) * | 2016-06-17 | 2016-08-17 | 上海铁路通信有限公司 | Precise train positioning system based on comprehensive positioning |
| CN108657234A (en) * | 2018-05-07 | 2018-10-16 | 成都九壹通智能科技股份有限公司 | System and method is monitored based on the dynamic train real-time displacement of vehicle |
| CN111077558A (en) * | 2019-12-25 | 2020-04-28 | 交控科技股份有限公司 | Positioning system of rail vehicle and rail transit system |
| CN111252113A (en) * | 2020-01-19 | 2020-06-09 | 合肥工大高科信息科技股份有限公司 | Distributed locomotive positioning method and device based on information consensus |
| CN111252113B (en) * | 2020-01-19 | 2021-10-26 | 合肥工大高科信息科技股份有限公司 | Distributed locomotive positioning method and device based on information consensus |
| CN115635994A (en) * | 2022-11-04 | 2023-01-24 | 北京酷鲨科技有限公司 | Train tail auxiliary positioning method and device |
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