CN205344923U - Device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding - Google Patents
Device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding Download PDFInfo
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- CN205344923U CN205344923U CN201620099614.4U CN201620099614U CN205344923U CN 205344923 U CN205344923 U CN 205344923U CN 201620099614 U CN201620099614 U CN 201620099614U CN 205344923 U CN205344923 U CN 205344923U
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Abstract
The utility model discloses a device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding, including self -checking module, a ranging module, the 2nd ranging module, a host system, the 2nd host system, an information display module, the 2nd information display module, a voice broadcast module, the 2nd voice broadcast module, an acousto -optic warning module, the 2nd acousto -optic warning module, a ranging module 0 ranging module 1, the 2nd ranging module 0 ranging module 1, communication ranging module 4 and back -up source, the output of back -up source is connected with self -checking module, a host system, the 2nd host system's input respectively. The utility model discloses can prevent train collision, prevent around the train trail and knock into the back, protect the crucial facility of railway etc. Can provide real -time distance and sensor detection data for railroad locomotive vehicle operation tracking, navigational positioning, intelligence transportation dispatch.
Description
Technical field
This utility model relates to rear-end device technical field, particularly relates 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, no matter is Wenzhou rear end collision of motor train accident not long ago, or the No. 10 subway/light rail line rear-end collision in Shanghai, the soul all giving people causes very big injury, making people that for the moment the safety of track traffic is created suspection, 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.
Utility model content
The purpose of this utility model is to solve the shortcoming existed 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, this utility model adopts the technical scheme that
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.
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.
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 this utility model, 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 utility model proposes；
Fig. 2 is point-to-point bidirectional ranging ratio juris schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.
With 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.
Mode of operation of the present utility model 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 this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; conceive according to the technical solution of the utility model and utility model thereof and be equal to replacement or change, all should be encompassed within protection domain of the present utility model.
Claims (7)
1. 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.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620099614.4U CN205344923U (en) | 2016-02-01 | 2016-02-01 | Device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620099614.4U CN205344923U (en) | 2016-02-01 | 2016-02-01 | Device that knocks into back is prevented to railway train anticollision based on point -to -point accurate range finding |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730475A (en) * | 2016-02-01 | 2016-07-06 | 成都可益轨道技术有限公司 | Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement |
| CN107650948A (en) * | 2017-10-30 | 2018-02-02 | 成都九壹通智能科技股份有限公司 | It is a kind of using micropower ranging and the anti-collision system for trains that communicates |
-
2016
- 2016-02-01 CN CN201620099614.4U patent/CN205344923U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105730475A (en) * | 2016-02-01 | 2016-07-06 | 成都可益轨道技术有限公司 | Railway train collision and rear-end collision preventing device based on point-to-point accurate distance measurement |
| CN107650948A (en) * | 2017-10-30 | 2018-02-02 | 成都九壹通智能科技股份有限公司 | It is a kind of using micropower ranging and the anti-collision system for trains that communicates |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Jizhao Inventor after: Yang Yeling Inventor before: Yang Jizhao Inventor before: Tan Shanwen |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170328 Address after: 610000 Sichuan Province, Chengdu, new hope road, No. 2, building 5, unit 10, building 20, No. 2 Patentee after: Yang Jizhao Patentee after: Yang Yeling Address before: 610052 Chengdu high tech Zone, Xiaojiahe Province, No. two ring road, south of the No. four, No., No. 16 Patentee before: Chengdu Keyi Track Technology Co.,Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Jizhao Inventor after: Tan Shanwen Inventor before: Yang Jizhao Inventor before: Yang Yeling |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170425 Address after: 610000 Chengdu high tech Zone, Xiaojiahe Province, No. two ring road, south of the No. four, No., No. 16 Patentee after: Chengdu Keyi Track Technology Co.,Ltd. Address before: 610000 Sichuan Province, Chengdu, new hope road, No. 2, building 5, unit 10, building 20, No. 2 Co-patentee before: Yang Yeling Patentee before: Yang Jizhao |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170711 Address after: 5 Building 4, No. 200, five street, Tianfu 610000 street, hi tech Zone, Sichuan, Chengdu Patentee after: Chengdu Jiuyi intelligent Polytron Technologies Inc Address before: 610000 Chengdu high tech Zone, Xiaojiahe Province, No. two ring road, south of the No. four, No., No. 16 Patentee before: Chengdu Keyi Track Technology Co.,Ltd. |