CN204506929U - Train collision prevention warning system - Google Patents
Train collision prevention warning system Download PDFInfo
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- CN204506929U CN204506929U CN201520108446.6U CN201520108446U CN204506929U CN 204506929 U CN204506929 U CN 204506929U CN 201520108446 U CN201520108446 U CN 201520108446U CN 204506929 U CN204506929 U CN 204506929U
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- train
- warning system
- vehicle host
- collision prevention
- label tag
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Abstract
The utility model discloses a kind of train collision prevention warning system, it is characterized in that described forewarn system comprises on-vehicle host, rfid interrogator, speed sensor and RFID label tag, described on-vehicle host, described rfid interrogator and described speed sensor are all arranged on described train, and described RFID label tag is arranged on the segment of curve of track; Wherein, described rfid interrogator and described speed sensor communicate to connect with described on-vehicle host respectively.The utility model has the advantages that, system composition is simple, 200 meters of remote trains detections can be realized on rectilinear orbit by radar, can solve by rfid interrogator and RFID label tag Most current anti-collision early warning system cannot to detect train difficulty at bend simultaneously.
Description
Technical field
The utility model relates to rail traffic signal system, is specifically related to a kind of train collision prevention warning system.
Background technology
Along with the fast development of track traffic industry, ended for the end of the year 2013, China has 36 cities and gets permission to build city rail traffic route, and wherein 85 circuits in 19 cities open operation, and total kilometrage reaches 2509.52 kilometers.Expect the year two thousand twenty, National urban track operation mileage will reach 6000 kilometers, and the investment in track traffic will reach 3-4 trillion yuan.
Signal system as the most crucial safety control system of track traffic, for ensureing that the safe operation of guideway vehicle has played huge effect.But signal system is all normal in its specific conditioned disjunction environment to be run, once there is unconventional event or fault, is difficult to ensure normal safe operation.As: the extinction using gas gas explosive incident that Shanghai Metro Line No. 2 SHR on July 3rd, 2012 station occurs, directly cause power supply panel dead electricity, signal system is paralysed; Shanghai Underground No. 10 line that on September 27th, 2011 occurs, due to electric power system fault, ups system electricity also depletes afterwards, cause signal system paralysis completely, dispatcher sends false command in the case, finally cause collision event to occur, all to expose under extreme case after loss signal system track traffic without responsible, the present situation that safe operation cannot ensure.
Therefore, track traffic is reliable train collision prevention warning system under needing a set of extreme condition, under similar unconventional situation, by certain technological means, realizes the reliable and secure system of the pre-anticollision of train.
Summary of the invention
The purpose of this utility model is according to above-mentioned the deficiencies in the prior art part, a kind of train collision prevention warning system is provided, this forewarn system is by arranging rfid interrogator ON TRAINS and laying RFID label tag on track segment of curve, to realize the crashproof detection on track segment of curve.
The utility model object realizes being completed by following technical scheme:
A kind of train collision prevention warning system, it is characterized in that described forewarn system comprises on-vehicle host, rfid interrogator, speed sensor and RFID label tag, described on-vehicle host, described rfid interrogator and described speed sensor are all arranged on described train, and described RFID label tag is arranged on the segment of curve of track; Wherein, described rfid interrogator and described speed sensor communicate to connect with described on-vehicle host respectively.
Communication unit, event recording unit and power subsystem unit that described on-vehicle host comprises main control unit and is connected with described main control unit.
Described rfid interrogator is positioned at described train initial and end two ends.
Described RFID label tag is laid along the segment of curve interval of described track.
Described forewarn system also comprises the radar be positioned on described train initial and end two ends, and described radar and described on-vehicle host communicate to connect.
Described forewarn system also comprises the emergency braking loop be positioned on described train, and described emergency braking loop is connected with described on-vehicle host.
The utility model has the advantages that, system composition is simple, 200 meters of remote trains detections can be realized on rectilinear orbit by radar, can solve by rfid interrogator and RFID label tag Most current anti-collision early warning system cannot to detect train difficulty at bend simultaneously.
Accompanying drawing explanation
Fig. 1 is train collision prevention warning system composition frame chart in the utility model;
Fig. 2 is that the RFID label tag on the utility model middle orbit segment of curve arranges schematic diagram;
Fig. 3 is radar obstacle detection schematic diagram on the utility model cathetus track;
Fig. 4 is the relation schematic diagram of the utility model medium velocity and stopping distance;
Fig. 5 is the spacing relation schematic diagram in the utility model between train.
Detailed description of the invention
Feature of the present utility model and other correlated characteristic are described in further detail by embodiment below in conjunction with accompanying drawing, so that the understanding of technical personnel of the same trade:
Embodiment: the present embodiment is specifically related to a kind of train collision prevention warning system, this forewarn system is for as substituting and supplementary technology when handing over signal system to lose efficacy when city rail, comprises the RFID card reader Detection Techniques of train on the collision avoidance radar Detection Techniques of train termination on rectilinear orbit and warp rail.
As Figure 1-3, the forewarn system in the present embodiment comprises on-vehicle host, external equipment and trackside equipment.(1) on-vehicle host is installed in the control housing in train driving room, the communication unit, event recording unit and the power subsystem unit that comprise main control unit and be connected with main control unit, and each several part of on-vehicle host designs according to two redundance unit.(2) external equipment is installed on train, comprise 2 radars, 2 RFID card reader and 1 speed sensor, 2 radars are specifically arranged at the initial and end two ends of train, 2 RFID card reader are arranged at the initial and end two ends of train equally, and form communication connection between the communication unit of each equipment all with on-vehicle host.(3) track equipment refers to RFID label tag and trackside locating point, and before and after track segment of curve within the scope of 150 meters, on track, distance lays some RFID label tag at certain intervals, and the spacing distance adopted in the present embodiment is 3 meters.
Main control unit in on-vehicle host has been used for information and has gathered, information comprises speed and the operating condition of comprehensive input herein, joint radar information and FRID label information carry out logic operation afterwards, calculate front truck and whether be greater than safety distance with the distance of this car, thus determine whether take braking and alarm according to the decision criteria pre-established, and export corresponding instruction.
Communication unit in on-vehicle host for completing the communication interaction between radar, rfid interrogator and speed sensor, in order to obtain and send corresponding data.
Event recording unit in on-vehicle host, for completing the large-spacing record under normal travel situations, is spaced apart 10 seconds once, and finds the closely-spaced record of emergency case or event of failure, is spaced apart 0.5 second once.
Power subsystem unit in on-vehicle host is used for operating voltage input direct voltage being converted to equipment, it forms primarily of two DC-DC module, one tunnel DC-DC module realizes converting 66VDC ~ 150VDC input voltage to 24V vdc, for driver output relay and peripheral radar and rfid interrogator, the 24V vdc that another road DC-DC module realizes module exports above converts 3.3V power supply to for the main control unit in on-vehicle host, communication unit and event recording unit.
As shown in Figure 1,3, the radar in external equipment adopts microwave radar range device, and 24V DC powers, and its precision is higher; Rfid interrogator adopts 900MHz read write line, and reading/writing distance is comparatively far away, and speed is fast, and 9-36V DC powers; Speed sensor then adopts the pulse sensor of widespread use, and 18-30V DC powers.
As shown in Figure 2, the passive electronic label of the specifically 900MHz of the RFID label tag in track equipment, its before and after orbital curve section within the scope of 150 meters interval lay.
As Figure 1-5, the train collision prevention warning system in the present embodiment is daily is in running state, hands over signal system concurrent working with the rail of routine, but only after signal system lost efficacy, gets involved the control to train.The method of work of train collision prevention warning system is:
A. have the electronic chart of current operating line in main control unit, according to the speed sensor on train and trackside locating point, in conjunction with electronic chart, main control unit can judge that current train travels on rectilinear orbit or on segment of curve track;
If when B. train is on rectilinear orbit, the radar that train is installed is by launching radar wave to detect within the scope of 200 meters, front whether have train, on-vehicle host calculates train self moving velocity according to the speed sensor be installed on train wheel, corresponding maximum stopping distance is calculated according to the poorest braking ratio, using this distance as safe range, add the sound and light alarm scope of the preceding paragraph redundancy distance as detector in addition, once front train is in alarm range, the on-vehicle host on this train can sound and light alarm prompting driver.If distance is nearer, enter within the scope of safety arrestment, then on-vehicle host is by sending instruction to the emergency braking loop on train, and trigger emergency is braked, and guarantees safety;
According to speed as shown in Figure 4-stopping distance relation curve, known under a certain speed, train stops the stopping distance of required traveling completely.
If C. train is on segment of curve track, when the rfid interrogator of train head end is through RFID label tag, first by label substance, (this content is the train ID of last train write to rfid interrogator, through the moment, driving cycle and velocity amplitude) read, calculate the minor increment with front truck;
When the rfid interrogator of train tail end is through this RFID label tag, this car ID, current time, this car driving cycle (traction, braking or coasting) and velocity amplitude are write in this RFID label tag, knows for rear car;
Every train is through each RFID label tag, last train can be read in the velocity information through this RFID label tag, by to the front truck information gathered in multiple RFID label tag, can judge whether front truck has enough safety distances with this car, whether front truck takes brake operating, impel this car to take deceleration alarm with this, and vehicle tail end can by the RFID label tag of current for this car relevant information write process.
Train collision prevention warning system in the present embodiment is except realizing the train collision avoidance detection in straight way 200 meters of distances, solve Most current anti-collision early warning system cannot detect train difficulty at bend simultaneously, substantially increase the ability of track traffic reply burst accident, the safety of driving a vehicle when improving signal system et out of order, thus the impact and loss that reduce that fault causes.
Claims (6)
1. a train collision prevention warning system, it is characterized in that described forewarn system comprises on-vehicle host, rfid interrogator, speed sensor and RFID label tag, described on-vehicle host, described rfid interrogator and described speed sensor are all arranged on described train, and described RFID label tag is arranged on the segment of curve of track; Wherein, described rfid interrogator and described speed sensor communicate to connect with described on-vehicle host respectively.
2. a kind of train collision prevention warning system according to claim 1, is characterized in that communication unit, event recording unit and power subsystem unit that described on-vehicle host comprises main control unit and is connected with described main control unit.
3. a kind of train collision prevention warning system according to claim 1, is characterized in that described rfid interrogator is positioned at described train initial and end two ends.
4. a kind of train collision prevention warning system according to claim 1, is characterized in that described RFID label tag is laid along the segment of curve interval of described track.
5. a kind of train collision prevention warning system according to claim 1, it is characterized in that described forewarn system also comprises the radar be positioned on described train initial and end two ends, described radar and described on-vehicle host communicate to connect.
6. a kind of train collision prevention warning system according to claim 1, it is characterized in that described forewarn system also comprises the emergency braking loop be positioned on described train, described emergency braking loop is connected with described on-vehicle host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108446.6U CN204506929U (en) | 2015-02-15 | 2015-02-15 | Train collision prevention warning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520108446.6U CN204506929U (en) | 2015-02-15 | 2015-02-15 | Train collision prevention warning system |
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| CN204506929U true CN204506929U (en) | 2015-07-29 |
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| CN201520108446.6U Expired - Fee Related CN204506929U (en) | 2015-02-15 | 2015-02-15 | Train collision prevention warning system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106627670A (en) * | 2016-12-19 | 2017-05-10 | 交控科技股份有限公司 | Train protection system and method based on laser detection |
| CN107351865A (en) * | 2017-06-07 | 2017-11-17 | 成都川通达科技有限公司 | A kind of interval detection means of subway train |
| WO2018059141A1 (en) * | 2016-09-27 | 2018-04-05 | 上海无线电设备研究所 | Early-warning radar system for preventing rail transit vehicle collision |
| CN109305196A (en) * | 2018-10-31 | 2019-02-05 | 西南交通大学 | The control system of rail transit train |
| CN110155127A (en) * | 2019-05-21 | 2019-08-23 | 北京交通大学 | Train driving control method and device |
| CN111629950A (en) * | 2018-01-23 | 2020-09-04 | 奥雅纳工程顾问创投有限公司 | Wireless train management system |
| CN112241129A (en) * | 2019-07-17 | 2021-01-19 | 中车长春轨道客车股份有限公司 | Control system, method, apparatus, computer device, and storage medium |
-
2015
- 2015-02-15 CN CN201520108446.6U patent/CN204506929U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018059141A1 (en) * | 2016-09-27 | 2018-04-05 | 上海无线电设备研究所 | Early-warning radar system for preventing rail transit vehicle collision |
| CN106627670A (en) * | 2016-12-19 | 2017-05-10 | 交控科技股份有限公司 | Train protection system and method based on laser detection |
| CN106627670B (en) * | 2016-12-19 | 2018-06-15 | 交控科技股份有限公司 | A kind of train protection system and method based on laser detection |
| CN107351865A (en) * | 2017-06-07 | 2017-11-17 | 成都川通达科技有限公司 | A kind of interval detection means of subway train |
| CN111629950A (en) * | 2018-01-23 | 2020-09-04 | 奥雅纳工程顾问创投有限公司 | Wireless train management system |
| CN111629950B (en) * | 2018-01-23 | 2024-01-09 | 奥雅纳工程顾问创投有限公司 | Wireless train management system |
| CN109305196A (en) * | 2018-10-31 | 2019-02-05 | 西南交通大学 | The control system of rail transit train |
| CN110155127A (en) * | 2019-05-21 | 2019-08-23 | 北京交通大学 | Train driving control method and device |
| CN112241129A (en) * | 2019-07-17 | 2021-01-19 | 中车长春轨道客车股份有限公司 | Control system, method, apparatus, computer device, and storage medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20200215 |