CN104002837B - Rail transit train automatic point recording and positioning system based on RFID - Google Patents
Rail transit train automatic point recording and positioning system based on RFID Download PDFInfo
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- CN104002837B CN104002837B CN201410258208.3A CN201410258208A CN104002837B CN 104002837 B CN104002837 B CN 104002837B CN 201410258208 A CN201410258208 A CN 201410258208A CN 104002837 B CN104002837 B CN 104002837B
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- 230000004888 barrier function Effects 0.000 description 2
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- 230000009885 systemic effect Effects 0.000 description 2
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Abstract
The invention relates to an automatic point recording and positioning system for a rail transit train based on RFID (radio frequency identification devices), which comprises RFID receivers A and B positioned at two ends of a platform, RFID electronic tags positioned at the head and tail of the train and a server, wherein the RFID receivers A and B are respectively positioned at the two ends of the platform; when a train head just enters a station, an RFID receiver A firstly receives information sent by an RFID electronic tag positioned at the train head; when a train enters a station and stops, the RFID receivers A and B simultaneously receive signals of electronic tags respectively positioned at the train head and the train tail; when the train leaves the station, the RFID receiver B can receive information sent by the electronic tag positioned at the tail of the train; the server judges the train position according to the received data. Compared with the prior art, the invention has the advantages that the daily point recording work intensity of the rail transit vehicle attendant can be greatly reduced, and the regional or station train can be quickly and accurately positioned under the condition that the automatic block signal system is paralyzed.
Description
Technical field
The present invention relates to a kind of rail transit train note point and alignment system, especially relate to a kind of track based on RFID
Traffic train is remembered a little and alignment system automatically.
Background technology
When the urban track traffic automatic block signal system failure lost efficacy, TD person must be by artificial means pair
Online train on faulty line or section positions fast and accurately, and it is enforcement electricity under the conditions of signal automatic blocking paralysis
The prerequisite of words block system driving work.Under the conditions of automatic block signal thrashing, TD person is to online train
The Accuracy and high efficiency being positioned manually, the traffic safety and the urban track traffic that directly influence subsequent calls block system should
The anxious efficiency disposed.On JIUYUE 27th, 2011, Shanghai Underground No. 10 line generation automatic block signal systemic breakdown event, driving is adjusted
The immediate cause being train from overtaking collision accident occurs is forbidden in online train location by degree person.Therefore, for guaranteeing automatic block signal system
The traffic safety under failure condition of uniting also shortens the fault delay time at stop as much as possible, it is necessary to carry out urban railway transit train note
Point work.
Urban railway transit train note point (hereinafter " note point ") refers to upper by station of station driving person on duty
Station, the rear departure time of down train, our station reach time, our station departure time and station, front and are registered in the time of advent
On daily record of work.Wherein, station, rear departure time and station, front need driving person on duty by phone with front the time of advent
The driving person on duty at station, rear could register these two times after contacting.When automatic block signal system burst fault
Under the conditions of disabler, the note point daily record data of station driving person on duty can be the online train locational decision of TD person
Reliable foundation is provided.
At present, domestic each urban track traffic operator has all carried out train note point and corresponding train location work,
But generally all use artificial means.There is the shortcomings such as data volume is big, work multiplicity is high, job content is single in artificial note point, easily
Cause note point staff tired and note point work efficiency is low.According to statistics, one day driving person on duty needs the row of record
Car is to photos and sending messages data the nearlyest thousand.And straight except by the quantity of credit evidence and accuracy thereof of the accuracy being positioned manually
Connect outside impact, also easily by the remote-effects of the aspect interference factors such as various artificial and external environment condition.
From the above analysis, current pure artificial note point and corresponding station-keeping mode have been difficult to meet automatic block signal
System because of catastrophic failure under the conditions of disabler to track traffic high operation security, the demand of high emergency disposal efficiency.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of rail based on RFID is provided
Traffic train in road is remembered a little and localization method automatically, can be substantially reduced the working strength of track traffic driving person on duty's daily note point,
And improve TD person under the conditions of automatic block signal thrashing and carry out accuracy and the efficiency of train location work on line.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of rail transit train based on RFID is remembered a little and alignment system automatically, it is characterised in that include being located in
RFID receiver A and B at platform two ends, it is in train head and the RFID of the tailstock and server, described clothes
Business device is connected with RFID receiver A and B respectively, and described RFID receiver A with B communicates with respective RFID respectively
Connect；
When train head has just enter into station, first RFID receiver A can receive and be positioned at the RFID of headstock and send out
The information sent, sends home signal and running number to server simultaneously；
When train inlet parking, RFID receiver A and B is simultaneously received the electronic tag laying respectively at headstock and the tailstock
Signal, simultaneously send stop signal to server；
When train is leaving from station, RFID receiver B can receive the information that tailstock electronic tag sends that is positioned at, and sends simultaneously and opens
Dynamic signal and signal leaving from station are to server；
Server deadline record and data storage, judge train position according to the data received simultaneously.
Also including the infrared ray sensor installed on RFID receiver A and B location respectively, installation site is RFID reception
The vertical direction of device is near the side in Gui Hang district；When station stopped by train, it is positioned at the infrared ray sensor of the headstock tailstock simultaneously
Subway train being detected, stopping train carries out timing；When train starts to start, and RFID receiver A remains to receive
The information of electronic tag, but in the case of the infrared sensor of A end can't detect train, the timing signal that stopping stopped is sent out
Give server.
Described server according to the data received train position judged particularly as follows:
(1) the normal inbound case of train, table 1 is each receptor, sensor and train position relation in the case of being somebody's turn to do
Table 1
(2) train does not stop by situation, in this case, in the second stage of table 1, i.e. and RFID receiver A and B two ends
Infrared sensor be detected simultaneously by the time t≤t of train1,
(3) Train Stopping stops after crossing limit inverted running situation, table 2 for should in the case of each receptor, sensor and train
Position relationship
Table 2
(4) on line based on credit evidence, train position judges, is specifically shown in Table 3,
Table 3
Described server includes that the platform being sequentially connected with controls terminal, station server terminal and station display terminal,
Described platform controls terminal and is connected with RFID receiver, infrared ray sensor respectively.
Compared with prior art, the invention have the advantages that
(1), train based on RFID is remembered a little automatically and alignment system is possible not only to be substantially reduced track traffic and drives a vehicle on duty
The daily note point working strength of member, and under the conditions of automatic block signal systemic breakdown can quickly and accurately to interval or
Station train positions, make train note point and signal automatic blocking paralyse in the case of line on train location work accuracy and
Efficient；
(2), in system logic with in physical structure design, assisted with infrared sensor, improve train at platform
The positioning precision in region；On train is automatically positioned, it is considered to train dwelling, miss the stop and three kinds of train operation situations of regression propose
Train operation state and position decision method, improve the practicality of method.
(3), network SQL database is used, it is not necessary to installing, computer is linked server and can be used, improves system in future
The convenience of application；Train note point and alignment system be totally independent of other system, will not by the interference of other system and restriction,
Improve the reliability of system in future application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of server of the present invention；
Fig. 3 is the workflow diagram of the present invention；
Fig. 4 is the headstock of train of the present invention schematic diagram when having just enter into station；
Schematic diagram when Fig. 5 is train inlet parking of the present invention；
Infrared ray sensor operating diagram when Fig. 6 is train of the present invention stop station；
Fig. 7 be train of the present invention leaving from station time schematic diagram；
Fig. 8 is that present invention train position based on credit evidence judges schematic diagram.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As it is shown in figure 1, be terminal unit and laying framework thereof needed for the present invention, headstock and the tailstock of train are fitted with
RFID 2, have recorded the relevant informations such as vehicle train number in electronic tag 2.What electronic tag was selected is RFID active electrical
Subtab, active electronic label can be constantly to emission radiofrequency signal during operation.The built-in PCB of this active electronic label
Antenna, working frequency range is 2.4GHz, and modulation system is GFSK, transmission range 70～90 meters of visual ranges, running voltage be 1.9～
3.6V, inside comprises can the NRF24LE1 module of secondary development.Both sides (i.e. corresponding train head, the tailstock of the up-downgoing of platform
The position of RFID active electronic label is installed) it is fitted with RFID receiver 1 and other aiding sensors.More than select
The running voltage of RFID receiver is 12VDC, electric current≤100mA, communication interface be Wiegand26/34/36/44bit,
RS232, RS485, operating temperature :-40 DEG C～+85 DEG C (technical grade), antenna frequencies scope: 2.400-2.480GHz.It is positioned at car
The position that receptor is corresponding, installs infrared ray aiding sensors additional near the side in Gui Hang district, and the distance of two sensor installations should
The slightly smaller than length of train, can be detected simultaneously by barrier when platform stopped by train.
The physics framework of server 3 is as in figure 2 it is shown, RFID receiver is connected in platform control terminal 31, and platform controls
Terminal 31 be one use STM32F0 chip electronic control module, platform control terminal 31 be connected to RFID receiver and
Station server terminal 32, described station server terminal 32 connects station display terminal, and this station display terminal is one
It is positioned at the computer of car control room, and connection has printing device 34.
System information transmissions flow process such as Fig. 3.Train head enters the station, stop, start and send respectively time the tailstock is leaving from station and enter the station
Signal, the signal that stops, enabling signal and signal leaving from station, to server, are recorded by the server deadline and data storage.
Such as Fig. 4, now the headstock of train has just enter into station, and first RFID receiver A can receive and be positioned at headstock electronic tag
The information sent out；Such as Fig. 5, now train inlet parking, then RFID receiver A, B can be simultaneously received and lay respectively at car
The signal of the electronic tag of head and the tailstock；When train is leaving from station, RFID receiver B can receive and be positioned at tailstock electronic tag and send
Information.Only rely on RFID receiver and can not judge train exactly by judging whether to receive the signal of electronic tag
The situation that stops and the dwell time, in addition to RFID receiver, therefore remain a need for installing other sensors assist to determine train
Stop situation.Its scheme is: RFID receiver A, B two positions fixed at upper figure install two set infrared sensors additional.
Such as Fig. 6, (it is positioned at the tailstock at the vertical direction of the RFID receiver B side installation infrared sensor near Gui Hang district
The position of corresponding RFID receiver A needs also exist for installing), when station stopped by train, it is positioned at the infrared ray sensing of the headstock tailstock
Device is detected simultaneously by barrier (subway train).Such as Fig. 7, when train is leaving from station, receptor B receives the electronics mark being positioned at the tailstock
Sign signal.
In the case of such as Fig. 4, control equipment train home signal and running number are sent to server；In the case of Fig. 5
The control equipment signal that will stop is sent to server, proceeds by timing of stopping；When train starts to start, and the RFID of A end connects
Receive device and remain to receive the information of electronic tag, but in the case of the infrared sensor of A end can't detect train, control to set
The standby timing signal that stopping stopped is sent to server；Fig. 7 situation train is leaving from station, and signal leaving from station is sent to service by control equipment
Device.
During train in/out station, the equipment control logic flow of note dot system is shown in accompanying drawing 8 automatically under normal circumstances.
(1) the normal inbound case of train, table 1 is each receptor, sensor and train position relation in the case of being somebody's turn to do
Table 1
(2) train does not stop by situation, in this case, in the second stage of table 1, i.e. and RFID receiver A and B two ends
Infrared sensor be detected simultaneously by the time t≤t of train1,
(3) Train Stopping stops after crossing limit inverted running situation, table 2 for should in the case of each receptor, sensor and train
Position relationship
Table 2
(4) on line based on credit evidence, train position judges, is specifically shown in Table shown in 3 and Fig. 8,
Table 3
Claims (1)
1. a rail transit train based on RFID is remembered a little and alignment system automatically, it is characterised in that include being in platform two
End RFID receiver A and B, be in train head and the RFID of the tailstock and server, described server divides
Not being connected with RFID receiver A and B, described RFID receiver A and B communicates to connect with RFID respectively；
When train head has just enter into station, first RFID receiver A can receive and be positioned at the RFID of headstock and send out
Information, platform controls terminal and sends home signal and running number to server simultaneously；
When train inlet parking, RFID receiver A and B is simultaneously received the letter of the electronic tag laying respectively at headstock and the tailstock
Number, the terminal of platform control simultaneously sends and stops signal to server；
When train is leaving from station, RFID receiver B can receive the information that tailstock electronic tag sends that is positioned at, and platform controls eventually simultaneously
End sends enabling signal and signal leaving from station to server；
Server deadline record and data storage, judge train position according to the data received simultaneously；
Also including the infrared ray sensor installed on RFID receiver A and B location respectively, installation site is RFID receiver
Vertical direction is near the side in Gui Hang district；When station stopped by train, the infrared ray sensor being positioned at the headstock tailstock detects simultaneously
To subway train, train is stopped and carries out timing；When train starts to start, and RFID receiver A remains to receive electronics
The information of label, but in the case of the infrared sensor of A end can't detect train, the timing signal that stopping stopped is sent to
Server；
Described server according to the data received train position judged particularly as follows:
(1) the normal inbound case of train, table 1 is each receptor, sensor and train position relation in the case of being somebody's turn to do
Table 1
(2) train does not stop by situation, in this case, and red in the second stage of table 1, i.e. RFID receiver A and B two ends
Outer sensor is detected simultaneously by the time t≤t of train1,
(3) Train Stopping stops after crossing limit inverted running situation, table 2 for should in the case of each receptor, sensor and train position
Relation
Table 2
(4) on line based on credit evidence, train position judges, is specifically shown in Table 3,
Table 3
Described server includes that the platform being sequentially connected with controls terminal, station server terminal and station display terminal, described
Platform control terminal be connected with RFID receiver, infrared ray sensor respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258208.3A CN104002837B (en) | 2014-06-11 | 2014-06-11 | Rail transit train automatic point recording and positioning system based on RFID |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258208.3A CN104002837B (en) | 2014-06-11 | 2014-06-11 | Rail transit train automatic point recording and positioning system based on RFID |
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| Publication Number | Publication Date |
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| CN104002837A CN104002837A (en) | 2014-08-27 |
| CN104002837B true CN104002837B (en) | 2017-01-04 |
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| CN110466535B (en) * | 2019-08-30 | 2021-01-22 | 中车株洲电力机车研究所有限公司 | System and method for linkage of intelligent rail train door and platform safety door |
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| CN113665635B (en) * | 2021-08-21 | 2023-06-20 | 国网湖北省电力有限公司电力科学研究院 | Rail transit train operation position inversion method |
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