CN105730475A - Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement - Google Patents
Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement Download PDFInfo
- Publication number
- CN105730475A CN105730475A CN201610071636.4A CN201610071636A CN105730475A CN 105730475 A CN105730475 A CN 105730475A CN 201610071636 A CN201610071636 A CN 201610071636A CN 105730475 A CN105730475 A CN 105730475A
- Authority
- CN
- China
- Prior art keywords
- module
- control module
- train
- point
- main control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
- B61L23/08—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only
- B61L23/14—Control, warning, or like safety means along the route or between vehicles or vehicle trains for controlling traffic in one direction only automatically operated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning, or like safety means along the route or between vehicles or vehicle trains
- B61L23/34—Control, warnings or like safety means indicating the distance between vehicles or vehicle trains by the transmission of signals therebetween
Abstract
The invention discloses a railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement. The railway train collision and rear-end collision preventing device comprises a self-detection module, a first distance measurement module, a second distance measurement module, a first master control module, a second master control module, a first information display module, a second information display module, a first voice broadcasting module, a second voice broadcasting module, a first audible and visual alarm module, a second audible and visual alarm module, a first train brake control module, a second train brake control module, a communication conversion interface and a backup power source. The output end of the backup power source is connected with the input end of the self-detection module, the input end of the first master control module and the input end of the second master control module. By the adoption of the railway train collision and rear-end collision preventing device, train collisions and front and back train tracking rear-end collisions can be prevented, railway key facilities can be protected, and the real-time distance and sensor detection data can be provided for railway locomotive vehicle running tracking, navigation positioning and intelligent transport dispatching.
Description
Technical field
The present invention relates to rear-end device technical field, particularly relate to a kind of railroad train anticollision rear-end device based on point-to-point precision ranging.
Background technology
Knock into the back refer to the vehicle of same lanes trail and during row, the behavior that rear car front bumps against with the front truck tailstock.Mainly due to follow-up be smaller than minimum safe spacing and driver's delay of response or brakes performance bad caused by.All the time, track traffic is considered as safest trip mode, but, in recent years, the incidence rate of track traffic accident rises to some extent so that the safety of track traffic is created suspection by people for the moment, and track traffic is different from automobile, its handling capacity of passengers is very big, once there is accident, casualty situations is difficult to estimate.So for track traffic, it is necessary to accident rate is preferably minimized.Traditional anti-measure of knocking into the back has following several: laser ranging, Anticollision Radar and ultrasonic anti-collision.These technology are actively anti-collision technique, and the mode that then vehicle detects echo by forwards transmission electromagnetic wave or sound wave confirms whether front exists the distance of barrier, barrier, and judges whether to need to implement braking with this.But above-mentioned technology implements there is certain difficulty in track traffic, its reason is mainly above-mentioned technology and is applicable to that vehicle running space is relatively big and vehicle is constantly in the state of rectilinear motion, and the running environment in track traffic is Multiple tunnel and bend, therefore above-mentioned technology is difficult to apply to track traffic.
Summary of the invention
The invention aims to the shortcoming solving exist in prior art, and a kind of railroad train anticollision rear-end device based on point-to-point precision ranging proposed.
To achieve these goals, present invention employs following technical scheme:
nullA kind of railroad train anticollision rear-end device based on point-to-point precision ranging，Including selftest module、First range finder module、Second range finder module、First main control module、Second main control module、First information display module、Second information display module、First voice broadcast module、Second voice broadcast module、First sound and light alarm module、Second acousto-optic alarm module、First train brake control module、Second train brake control module、Interface of Communication Conversion and back-up source，The outfan of described back-up source respectively with selftest module、First main control module、The input of the second main control module connects，The input of described first main control module respectively with selftest module、Interface of Communication Conversion、The outfan of back-up source connects，The outfan of described first main control module respectively with first information display module、First voice broadcast module、First sound and light alarm module、First train brake control module、The input of Interface of Communication Conversion connects；The input of described second main control module respectively with selftest module, Interface of Communication Conversion, the outfan of back-up source connects, the outfan of described second main control module respectively with the second information display module, second voice broadcast module, second acousto-optic alarm module, second train brake control module, the input of Interface of Communication Conversion connects, the outfan of described selftest module respectively with the first main control module, second main control module, Interface of Communication Conversion, the input of back-up source connects, described Interface of Communication Conversion respectively with the first range finder module, second range finder module is bi-directionally connected, described first range finder module, second range finder module is all connected with antenna electric.
Preferably, described first range finder module, the second range finder module all include wireless signal transceiver, and described wireless signal transceiver launches wireless signal by nanosecond burst pulse.
Preferably, described first information display module, the second information display module all include information display screen.
Preferably, described first voice broadcast module, the second voice broadcast module all include voice announcer.
Preferably, described first sound and light alarm module, the second acousto-optic alarm module all include audible-visual annunciator.
Preferably, described first train brake control module, the second train brake control module all electrically connect with train automated driving system.
Preferably, described back-up source adopts the power adaptation interface of self adaptation train environment, built-in intelligence charge-discharge circuit.
Wireless carrier communication distance measuring is by the impulse with very steep rising and falling time is carried out directly modulation, signal is made to have enough bandwidth, namely sinusoidal carrier is not adopted, but utilizing the function that the second dervative of nanosecond is constituted to transmit data for burst pulse, this signal shows as ultra-wideband signal.
Flight time precision ranging is to utilize the computed range time of advent.The time of advent, method was to utilize the propagation delay between transmitting terminal and receiving terminal to calculate 2 distances, and the spread speed of electric wave is light velocity c, it is assumed that the signal time from transmitting terminal to receiving terminal is t, then distance between the two is ct.
Adopt bidirectional ranging method, to improve point-to-point certainty of measurement.
As shown in Figure 2, can be used to calculate the two internodal distance two-way time from transmitting terminal to receiving terminal point-to-point transmission, this method is exactly bidirectional ranging, in figure, node A sent containing the bag of time tag information to node B in the moment, after waiting node B and this time label information to carry out synchronization, will one signal of loopback to node A, synchronously completing to represent, node A determines the propagation time according to the signal received.Distance between node A to B can be calculated by following equation and obtain:
DAB=Tf×c
DABFor the distance between node A to node B.
The technology mode adopted have channel fading is insensitive, launch power spectrum density interception capability low, low, system complexity is low, be provided that the range accuracy of Centimeter Level.
By becoming one equipment such as the main control module that double; two unit redundancies are designed, range finder module and back-up sources, it is possible to be advantageously mounted on the equipment room of train rear and front end driver's cabin.
Precision ranging based on front and back train, it is intended to realize safe train operation and management and control, supporting external device has information display screen, audible-visual annunciator and voice announcer, main control module also can according to the safe operating conditions of systemic presupposition, realize the automatic stopping under train operation abnormal condition (namely sending control car instruction to train automated driving system), it is possible to achieve the safety navigation of train operation and automatically controlling.In train rear and front end, driver's cabin installs this device, calculates the relative position between device according to the mutual distance information between multiple devices.
Single unit is all adopted modularized design, and device devises the real time automatic detection function of equipment working state, it is possible to all devices running status is carried out real-time tracking.In real time or regularly each independent working cell of device is carried out state-detection by selftest module, each working cell is checked in time, related test results is stored in the memorizer of selftest module or external equipment is arrived in output, once a certain unit of discovering device breaks down or work abnormal, real-time informing field maintenance person equipment can be overhauled or updates
All adopt independent operating thought of design, namely no matter it is the data generation of system, detection, communication, processes and result output, and system power supply design is all a set of completely self-contained system, with the interface-crossover that any data and context of detection do not occur for other signal of existing train and communication system, also without relying on existing communication port, that is when existing signaling system or other safety detecting system are all malfunctioning, without affecting working alone of this device, the safety management for railroad train provides a set of brand-new support method.
In the present invention, by adopting wireless carrier pulsed RF signals mechanism to carry out the range finding of point-to-point two-way flight time and communicate, obtain the real-time distance of the front and back train run on same rail track track on the range finding path between the train of front and back, automatically the operational envelope of train before and after judging, by the range finding quality monitoring mechanism signed based on direct sampled signal, whether the detection same track of railway has stop, the built-in ranging information transceiver of device and safe distance alarm, locomotive control mechanism, it is possible to prevent train collision, prevent from front and back train from following the tracks of to knock into the back, protection key railway facility etc., can follow the tracks of for railroad locomotive running, navigator fix, intelligent vehicle scheduling provides real-time distance and sensor detection data.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of railroad train anticollision rear-end device based on point-to-point precision ranging that the present invention proposes；
Fig. 2 is the point-to-point bidirectional ranging ratio juris schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.
nullWith reference to Fig. 1，A kind of railroad train anticollision rear-end device based on point-to-point precision ranging，Including selftest module、First range finder module、Second range finder module、First main control module、Second main control module、First information display module、Second information display module、First voice broadcast module、Second voice broadcast module、First sound and light alarm module、Second acousto-optic alarm module、First train brake control module、Second train brake control module、Interface of Communication Conversion and back-up source，The outfan of described back-up source respectively with selftest module、First main control module、The input of the second main control module connects，The input of described first main control module respectively with selftest module、Interface of Communication Conversion、The outfan of back-up source connects，The outfan of described first main control module respectively with first information display module、First voice broadcast module、First sound and light alarm module、First train brake control module、The input of Interface of Communication Conversion connects；The input of described second main control module respectively with selftest module, Interface of Communication Conversion, the outfan of back-up source connects, the outfan of described second main control module respectively with the second information display module, second voice broadcast module, second acousto-optic alarm module, second train brake control module, the input of Interface of Communication Conversion connects, the outfan of described selftest module respectively with the first main control module, second main control module, Interface of Communication Conversion, the input of back-up source connects, described Interface of Communication Conversion respectively with the first range finder module, second range finder module is bi-directionally connected, described first range finder module, second range finder module is all connected with antenna electric.
Described first range finder module, second range finder module all includes wireless signal transceiver, described wireless signal transceiver launches wireless signal by nanosecond burst pulse, first information display module, second information display module all includes information display screen, described first voice broadcast module, second voice broadcast module all includes voice announcer, first sound and light alarm module, second acousto-optic alarm module all includes audible-visual annunciator, first train brake control module, second train brake control module all electrically connects with train automated driving system, back-up source adopts the power adaptation interface of self adaptation train environment, built-in intelligence charge-discharge circuit, to ensure that the normal power supply of device and the battery when dispatch from foreign news agency lacks are powered.
Adopt double; two unit redundancy design configurations, namely system data occurs, detection, communication, processes and result output, and the design such as system power supply all adopts two cell locations, takes the reliability demonstration design of according to two, guarantee system when a certain unit fault, not influential system function.
The mode of operation of the present invention is: device electrifying startup, the running voltage of each module of equipment, electric current and communications status etc. are automatically detected respectively by selftest module by the program set, if each module parameter is intact, confirming that equipment state is normal, namely device enters each module cooperative duty；If it is confirmed that equipment state is abnormal, then the malfunctioning module detected and trouble point being recorded in the memorizer of selftest module, device is simultaneously emitted by reporting to the police；The main control module of normal operation controls the range finder module of correspondence respectively, and double; two unit concurrent workings, data are mutually authenticated；The detection data that range finder module is obtained by main control module are obtained by serial communication, and Real Time Drive information display module, show ranging information according to default condition thresholding classification；Ranging information is carried out real-time judgment by main control module, sends alarm to during beyond Secure Threshold；The main control module numerical value real-time judgment to going beyond the limit of, and by train brake control module, train is sent braking instruction.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; it is equal to replacement according to technical scheme and inventive concept thereof or is changed, all should be encompassed within protection scope of the present invention.
Claims (7)
- null1. the railroad train anticollision rear-end device based on point-to-point precision ranging，It is characterized in that，Including selftest module、First range finder module、Second range finder module、First main control module、Second main control module、First information display module、Second information display module、First voice broadcast module、Second voice broadcast module、First sound and light alarm module、Second acousto-optic alarm module、First train brake control module、Second train brake control module、Interface of Communication Conversion and back-up source，The outfan of described back-up source respectively with selftest module、First main control module、The input of the second main control module connects，The input of described first main control module respectively with selftest module、Interface of Communication Conversion、The outfan of back-up source connects，The outfan of described first main control module respectively with first information display module、First voice broadcast module、First sound and light alarm module、First train brake control module、The input of Interface of Communication Conversion connects；The input of described second main control module respectively with selftest module, Interface of Communication Conversion, the outfan of back-up source connects, the outfan of described second main control module respectively with the second information display module, second voice broadcast module, second acousto-optic alarm module, second train brake control module, the input of Interface of Communication Conversion connects, the outfan of described selftest module respectively with the first main control module, second main control module, Interface of Communication Conversion, the input of back-up source connects, described Interface of Communication Conversion respectively with the first range finder module, second range finder module is bi-directionally connected, described first range finder module, second range finder module is all connected with antenna electric.
- 2. a kind of railroad train anticollision rear-end device based on point-to-point precision ranging according to claim 1, it is characterized in that, described first range finder module, the second range finder module all include wireless signal transceiver, and described wireless signal transceiver launches wireless signal by nanosecond burst pulse.
- 3. a kind of railroad train anticollision rear-end device based on point-to-point precision ranging according to claim 1, it is characterised in that described first information display module, the second information display module all include information display screen.
- 4. a kind of railroad train anticollision rear-end device based on point-to-point precision ranging according to claim 1, it is characterised in that described first voice broadcast module, the second voice broadcast module all include voice announcer.
- 5. a kind of railroad train anticollision rear-end device based on point-to-point precision ranging according to claim 1, it is characterised in that described first sound and light alarm module, the second acousto-optic alarm module all include audible-visual annunciator.
- 6. a kind of railroad train anticollision rear-end device based on point-to-point precision ranging according to claim 1, it is characterised in that described first train brake control module, the second train brake control module all electrically connect with train automated driving system.
- 7. a kind of railroad train anticollision rear-end device based on point-to-point precision ranging according to claim 1, it is characterised in that described back-up source adopts the power adaptation interface of self adaptation train environment, built-in intelligence charge-discharge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071636.4A CN105730475A (en) | 2016-02-01 | 2016-02-01 | Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610071636.4A CN105730475A (en) | 2016-02-01 | 2016-02-01 | Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105730475A true CN105730475A (en) | 2016-07-06 |
Family
ID=56245610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610071636.4A Pending CN105730475A (en) | 2016-02-01 | 2016-02-01 | Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105730475A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108089576A (en) * | 2017-09-08 | 2018-05-29 | 江苏添仂智能科技有限公司 | A kind of positioning of suspension type unmanned vehicle based on UWB and control method |
| CN108688691A (en) * | 2017-04-11 | 2018-10-23 | 朱树棠 | Train traffic display system |
| WO2020121281A1 (en) * | 2018-12-14 | 2020-06-18 | Thales Canada Inc. | Rail vehicle obstacle avoidance and vehicle localization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050251337A1 (en) * | 2003-01-13 | 2005-11-10 | Konkan Rail Way Corporation Ltd. | Anti-collision device for trains and the like |
| CN103171595A (en) * | 2013-03-11 | 2013-06-26 | 同济大学 | Rail transit train rear-end prevention device based on pseudo-random code radio frequency distance measurement |
| CN104809915A (en) * | 2015-04-14 | 2015-07-29 | 深圳市润安科技发展有限公司 | Vehicle distance alarming system and method based on ultra-wideband wireless positioning technology |
| CN205344923U (en) * | 2016-02-01 | 2016-06-29 | 成都可益轨道技术有限公司 | Device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding |
-
2016
- 2016-02-01 CN CN201610071636.4A patent/CN105730475A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050251337A1 (en) * | 2003-01-13 | 2005-11-10 | Konkan Rail Way Corporation Ltd. | Anti-collision device for trains and the like |
| CN103171595A (en) * | 2013-03-11 | 2013-06-26 | 同济大学 | Rail transit train rear-end prevention device based on pseudo-random code radio frequency distance measurement |
| CN104809915A (en) * | 2015-04-14 | 2015-07-29 | 深圳市润安科技发展有限公司 | Vehicle distance alarming system and method based on ultra-wideband wireless positioning technology |
| CN205344923U (en) * | 2016-02-01 | 2016-06-29 | 成都可益轨道技术有限公司 | Device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding |
Non-Patent Citations (1)
| Title |
|---|
| 林俊亭等: ""城市轨道交通列车碰撞防护系统设计与研究"", 《铁道科学与工程学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108688691A (en) * | 2017-04-11 | 2018-10-23 | 朱树棠 | Train traffic display system |
| CN108089576A (en) * | 2017-09-08 | 2018-05-29 | 江苏添仂智能科技有限公司 | A kind of positioning of suspension type unmanned vehicle based on UWB and control method |
| WO2020121281A1 (en) * | 2018-12-14 | 2020-06-18 | Thales Canada Inc. | Rail vehicle obstacle avoidance and vehicle localization |
| US11753054B2 (en) | 2018-12-14 | 2023-09-12 | Thales Canada Inc | Rail vehicle obstacle avoidance and vehicle localization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10370015B2 (en) | Train traffic situation display system | |
| US20210289373A1 (en) | Communication system and method for correlating wireless communication performance with vehicle system configurations | |
| CN102239703B (en) | For controlling the tele-control system with touch-screen of rolling stock | |
| US7872591B2 (en) | Display of non-linked EOT units having an emergency status | |
| US9475509B2 (en) | Guided ground vehicle including a device for managing a derailment of the vehicle, and associated derailment management method | |
| WO2022121438A1 (en) | Train integrity testing system based on beidou short message communication | |
| US9925992B2 (en) | System and method for communicating in a vehicle consist | |
| CN106526595B (en) | Anti-collision early warning radar system for rail transit vehicle | |
| CN105730475A (en) | Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement | |
| US11753053B2 (en) | Method for operating a rail vehicle network | |
| CN103171595A (en) | Rail transit train rear-end prevention device based on pseudo-random code radio frequency distance measurement | |
| CN110775098A (en) | Active train control system | |
| CN100445146C (en) | A device for automatically detecting separation of a train formation | |
| CN205344923U (en) | Device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding | |
| KR100877587B1 (en) | Control system for safety operation of train | |
| CN102700573A (en) | Anti-collision system of active railway vehicle and anti-collision method thereof | |
| CN103818406A (en) | Subway auxiliary collision avoidance system and subway auxiliary collision avoidance method | |
| KR101357806B1 (en) | Train Integrity Monitoring System | |
| CN212605095U (en) | Shield tunnel construction electric locomotive collision avoidance system | |
| CN103802863A (en) | High-speed railway vehicle tailgating-prevention alarming method and device | |
| CN110667652A (en) | Subway operation intelligent scheduling system based on accurate position of train | |
| CN1218852C (en) | Digital communication device and method in use for wireless digital synthetized early-warning system in locomotive | |
| CN103366509A (en) | Intelligent alarm system and method for expressway car accidents | |
| CN203094105U (en) | Rear-end collision-resistant alarm device for high-speed railway vehicle | |
| CN215678757U (en) | Train test safety early warning system based on Beidou and integrated navigation technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180529 Address after: 610000 Chengdu, Sichuan, China (Sichuan) free trade pilot area, Chengdu high tech Zone, No. 200, 4 floor, 200 Tianfu five street. Applicant after: Chengdu Jiuyi intelligent Polytron Technologies Inc Address before: 610052 16 South four section of Xiaojiahe two ring road, Chengdu high tech Zone, Sichuan Applicant before: Chengdu Keyi Track Technology Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160706 |