CN112550357A - Method for checking mobile authorization by vehicle-mounted ATP (automatic train protection) equipment - Google Patents
Method for checking mobile authorization by vehicle-mounted ATP (automatic train protection) equipment Download PDFInfo
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- CN112550357A CN112550357A CN202011288377.3A CN202011288377A CN112550357A CN 112550357 A CN112550357 A CN 112550357A CN 202011288377 A CN202011288377 A CN 202011288377A CN 112550357 A CN112550357 A CN 112550357A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0018—Communication with or on the vehicle or vehicle train
- B61L15/0027—Radio-based, e.g. using GSM-R
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or vehicle train, e.g. braking curve calculation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/70—Details of trackside communication
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L2205/00—Communication or navigation systems for railway traffic
- B61L2205/02—Global system for mobile communication - railways (GSM-R)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to a method for checking mobile authorization by vehicle-mounted ATP equipment, which comprises the following steps: the vehicle-mounted ATP equipment utilizes an electronic map, combines the ground real-time signal machine and the turnout state to realize the calculation of the mobile authorization terminal, carries out safety check with the ground mobile authorization, and selects the strictest terminal as the terminal of the train mobile authorization. Compared with the prior art, the invention has the advantages of increasing the safety of the train control system, ensuring the driving safety and the like.
Description
Technical Field
The invention relates to a rail transit signal control system, in particular to a method for checking mobile authorization by vehicle-mounted ATP equipment.
Background
In the CTCS-3 train control system, the vehicle-mounted ATP equipment acquires track circuit information of a current section in real time through a track circuit reader TCR, receives movement authorization information of a ground RBC through a GSM-R network, and when the track circuit information is inconsistent with the RBC movement authorization information, the vehicle-mounted ATP equipment takes the strictest track circuit information and RBC movement authorization information as a final movement authorization terminal, so that safety protection of a train is realized. In the next generation of train control system, the arrangement of the track circuit is cancelled, the vehicle-mounted equipment cannot check the movement authorization sent by the ground equipment by utilizing the track circuit information, and certain potential safety hazards exist for the driving protection.
After retrieval, chinese patent publication No. CN110126882A discloses a train control method and system and a calculation method of mobile authorization, and CN107472300 discloses a calculation method of mobile authorization, most of the prior art is a calculation technique of mobile authorization, but it does not relate to how to further check mobile authorization.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for verifying the mobile authorization of the vehicle-mounted ATP equipment, which ensures the driving safety.
The purpose of the invention can be realized by the following technical scheme:
according to one aspect of the invention, a method for checking mobile authorization by a vehicle-mounted ATP device is provided, and the method comprises the following steps: the vehicle-mounted ATP equipment utilizes an electronic map, combines the ground real-time signal machine and the turnout state to realize the calculation of the mobile authorization terminal, carries out safety check with the ground mobile authorization, and selects the strictest terminal as the terminal of the train mobile authorization.
As a preferred technical solution, the method specifically comprises the following steps:
step 1), after the vehicle-mounted ATP equipment is powered on and initialization is completed, updating a line electronic map;
step 2) the vehicle-mounted ATP equipment acquires the current position information of the train according to the speed and distance measuring state;
step 3) the vehicle radio station forwards the train position report to the RBC in a wireless communication mode;
step 4) judging the current station of the train by the trackside equipment according to the train position report, calculating the station in front of the train according to the train operation plan or the access opening state, forwarding the signalers and the turnout states of the station and the station in front to the vehicle-mounted ATP equipment through a wireless network, and simultaneously sending the movement authorization to the vehicle-mounted ATP equipment by the RBC;
step 5) the vehicle-mounted radio station forwards the received trackside signal machine and turnout states and the mobile authorization sent by the RBC to the vehicle-mounted ATP equipment;
step 6), calculating the movement authorization by a vehicle-mounted computer in the vehicle-mounted ATP equipment according to the states of the signal machine and the turnout by combining an electronic map;
and 7) the vehicle-mounted computer selects the strictest one of the autonomously calculated mobile authorization and the mobile authorization sent by the RBC to monitor the running of the train.
Preferably, the information of the line electronic map in step 1) includes track division, a signal machine position, a switch position, and a connection relationship between signal points.
As a preferred technical solution, the step 2) specifically comprises: and speed and displacement information is acquired through a speed sensor, and ground transponder information is received through a transponder antenna to carry out position correction.
As a preferred technical solution, the step 2) specifically further comprises: and receiving the GNSS satellite navigation information by using the satellite receiver equipment to perform accurate train positioning and position correction.
As a preferable technical scheme, the trackside equipment in the step 4) utilizes the existing trackside equipment or adds the trackside equipment as required to forward the states of the signal machine and the turnout.
Preferably, the trackside equipment in the step 4) transfers the signal state to the vehicle-mounted ATP equipment according to a set period, and immediately sends the converted state if the ground signal changes.
As a preferred technical solution, the step 6) specifically comprises:
601) the vehicle-mounted ATP equipment carries out route searching along the current track of the train to the running direction of the train according to the current position of the train, and records all signal points and the states of the signal points on a route in front of the train in a train route sequence according to the signal point connection relation described in a route electronic map file;
602) on a straight strand line, the vehicle-mounted ATP takes the position of the train as a starting point, and signal points are sequentially recorded along the running direction of the train on a track where the train is located; after the route search meets the turnout, according to the turnout state sent by the trackside equipment, a track corresponding to the turnout state in the line electronic map is searched, the route search track is switched, and the turnout and the state are recorded in a route sequence;
603) when the vehicle-mounted ATP carries out route searching, the validity of the state of the signal point is judged: when the signal point is a signal machine and the state of the signal machine is a red light or other non-green light state, the route searching is stopped; when the signal point is a turnout, the turnout is in a four-switch state, and is in an abnormal state of positioning and reverse position, the route searching is stopped at a protection signal machine in front of the turnout; when the turnout is positioned or reversed, whether a train can normally pass through a turnout zone or not is judged according to the turnout state, if the train cannot pass through the turnout zone, the turnout position is also considered to be illegal, and the approach search is stopped at a protection signal machine in front of the turnout;
604) and after the route searching is finished, taking the route sequence end point as a mobile authorization end point calculated by the vehicle-mounted ATP.
As a preferred technical solution, the step 7) is specifically: and the vehicle-mounted ATP equipment compares the autonomous movement authorization with the movement authorization sent by the RBC, selects the strictest one as the final movement authorization, and calculates a target distance and speed curve to monitor the safe operation of the train.
As a preferable technical scheme, the line electronic map is directly burned into the vehicle-mounted ATP device through software, or the vehicle-mounted ATP device communicates with the departure test server before departure by arranging the ground departure test server, and the vehicle-mounted locally-stored line electronic map is updated when the verification is inconsistent.
Compared with the prior art, the invention has the following advantages:
(1) the vehicle-mounted ATP calculation mobile authorization is realized through the vehicle-mounted electronic map and the ground signal state, and the vehicle-mounted ATP calculation mobile authorization is checked with the mobile authorization sent by the ground, so that the safety of a train control system is improved, and the driving safety is ensured.
(2) On the basis of the existing train control system architecture, the scheme is realized only by adding a wireless message, so that the stability of the existing train control system architecture is ensured, and the compatibility with the existing train control system can be realized.
(3) When the ground equipment fails and the signal state can still be normally transmitted, the normal operation of the train is monitored by utilizing the vehicle-mounted autonomous calculation mobile authorization, so that the availability of the system is improved.
Drawings
FIG. 1 is a schematic diagram of a vehicle-mounted ATP device mobile authorization calculation;
FIG. 2 is a flow chart of the operation of the present invention;
FIG. 3 is a schematic illustration of the invalidation of switch positions;
fig. 4 is a schematic diagram of RBC route authorization and turnout opening direction inconsistency;
fig. 5 is a schematic diagram illustrating the inconsistency between the authorized length of the RBC route and the signal opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention relates to a method for checking mobile authorization by vehicle-mounted ATP equipment, which realizes the safety check of vehicle-mounted autonomous calculation mobile authorization and ground mobile authorization. The method is based on the existing train control system architecture, the ground signal machine and the turnout states are sent to the vehicle-mounted ATP device through newly added train-ground wireless message interaction, the vehicle-mounted ATP device is combined with a vehicle-mounted electronic map to conduct route searching, calculation of mobile authorization is completed, verification with ground mobile authorization is conducted, strict mobile authorization is selected to conduct ATP protection, and driving safety is guaranteed. When the method is adopted to carry out vehicle-mounted ATP autonomous calculation mobile authorization, components such as vehicle-mounted calculation, RBC, vehicle-mounted radio stations, line electronic maps and the like are required to be used. Wherein: the vehicle-mounted radio station is installed at a proper position in the cabinet and is in two-way communication with the RBC through a wireless network. The vehicle-mounted equipment downloads a full-line electronic map through direct burning or from a departure test server, and mainly comprises track division of the line, the position of a signal machine, the position information of turnouts and the like.
A schematic diagram of a device suitable for checking mobile authorization of a vehicle-mounted ATP device is shown in fig. 1.
After the vehicle-mounted equipment is powered on and initialized, the vehicle-mounted equipment guides a driver to check or update the data of the line electronic map. The RBC transparently transmits the version of the electronic map stored on the ground, the real-time signal machine and the turnout state to the vehicle-mounted equipment, and sends train movement authorization calculated according to the position report of the vehicle-mounted equipment and the ground signal state through a GSM-R network.
The vehicle-mounted radio station forwards the information sent by the RBC to a vehicle-mounted computer in a network communication mode, the vehicle-mounted computer firstly judges the effectiveness of an electronic map, and then the vehicle-mounted computer completes the route searching and the calculation of the movement authorization in front of the train according to the connection relation of each signal point in the electronic map, the state of a signal machine and the state of a turnout. And the vehicle-mounted calculation compares the independently calculated mobile authorization with the mobile authorization sent by the RBC, and a strict mobile authorization terminal is taken to calculate a target distance curve so as to monitor the safe operation of the train.
According to the scheme of the invention, the vehicle-mounted electronic map can be directly burnt into the vehicle-mounted equipment through software, or the vehicle-mounted equipment is communicated with the departure test server before departure by arranging the ground departure test server, and the vehicle-mounted locally-stored electronic map is updated when the vehicle-mounted electronic map is not consistent with the ground departure test server. The transmission of the states of the station turnout and the signal machine by the trackside equipment can be finished by the existing RBC channel, or other existing servers such as TSRS or other forwarding servers.
As shown in fig. 2, the method comprises the following specific steps:
the method comprises the following steps:
after the on-board equipment of the train on the X1G is powered on and the initialization is completed, the system guides a driver to check or update a line electronic map (including line parameters such as track division, signal machine positions, turnout positions and connection relations of signal points). If the in-vehicle device is not powered up again, this process is omitted.
Step two:
and the vehicle-mounted calculation acquires the current position information of the train according to the speed and distance measuring state. And speed and displacement information is acquired through a speed sensor, and ground transponder information is received through a transponder antenna to carry out position correction. And according to the requirement, equipment such as a satellite receiver and the like can be used for receiving GNSS satellite navigation information to carry out accurate train positioning and position correction.
Step three:
the train station forwards the train location report to the RBC in a wireless communication manner.
Step four:
and the trackside equipment judges the current station of the train according to the train position report, calculates the station in front of the train according to the train operation plan or the access opening state, and forwards the states of the signal machine and the turnout of the station in front and the current station to the vehicle-mounted equipment through a wireless network. The trackside equipment can utilize the existing trackside equipment such as RBC or TSRS equipment, and can also be newly added as required to forward the states of the signal machine and the turnout. And the trackside equipment forwards the signal state to the vehicle-mounted equipment according to a certain period, but the ground signal is changed and the changed state is immediately sent.
Step five:
and the vehicle-mounted radio station forwards the received trackside signal machine and turnout state and the mobile authorization sent by the RBC to the vehicle-mounted equipment.
Step six:
taking the receiving of the train at the positive line 1G in fig. 1 as an example, after the arrangement of the receiving route at the 1G is completed, the trackside equipment sends the station signal point states through the wireless network as follows: the incoming signal S green light, switch SW1, is positioned. And the vehicle-mounted equipment searches the route along the current track of the train to the running direction of the train according to the current position of the train, and records all signal points and the states of the signal points on the route in front of the train in a train route sequence according to the signal point connection relation described in the vehicle-mounted electronic map file.
On a straight strand line (not before passing through a turnout), sequentially recording signal points along the running direction of a train on a track where the train is located by using the position of the train as a starting point through a vehicle-mounted ATP; and after the access search meets the turnout, searching a track corresponding to the turnout state in the electronic map according to the turnout state sent by the side of the track, switching the access search track, and recording the turnout and the state in an access sequence.
When the vehicle-mounted ATP carries out route searching, the validity of the state of the signal point is judged: when the signal point is a signal machine and the state of the signal machine is a red light or other non-green light state, the route searching is stopped; when the signal point is a turnout, the turnout is in an abnormal state of four switches, positioning, reverse position and the like, and the route searching is stopped at a protection signal machine in front of the turnout; when the turnout is positioned or reversed, whether a train can normally pass through a turnout area according to the turnout state is further judged, if the train cannot pass through the turnout area, the turnout position is also considered to be illegal, the route search is stopped at a protection signal machine in front of the turnout, as shown in figure 2, an X2 outbound signal machine is opened, an SW2 turnout is reversed, the SW1 turnout is positioned, the vehicle-mounted ATP equipment carries out route search, when the SW1 is found to be positioned, the route search cannot cross the turnout area, the route search is ended, and the route sequence end point is the X2 outbound signal machine.
And after the route searching is finished, taking the route sequence end point as a mobile authorization end point calculated by the vehicle-mounted ATP.
Step seven:
and comparing the autonomous movement authorization with the movement authorization sent by the RBC by the vehicle-mounted ATP, selecting the strictest one as the final movement authorization, and calculating a target distance and speed curve to monitor the safe operation of the train. The mobile authorization calculated by vehicle-mounted ATP is inconsistent with the mobile authorization sent by RBC in two cases:
the first condition is as follows: as shown in fig. 4, the X signal is open, the switch SW1 is open for positioning, and the route sequence in front of the train searched by the vehicle-mounted ATP device according to the signal and switch states is: (B2, X, SW1, B3), the transponder link relationship is (B2, B3); the transponder connection relations sent by the RBC are (B2, B5). And if the two are inconsistent, the vehicle-mounted X-ray signal machine is taken as a mobile authorization terminal.
Case two: as shown in fig. 5, the X signal is turned off, and the train forward route sequence searched by the vehicle-mounted ATP device according to the state of the signal is (B2, X); the route authorization sent by the RBC is 3G vehicle receiving, and the route authorization terminal is a 3G outbound signal machine X2. The vehicle-mounted calculated mobile authorization is shorter than that sent by the RBC, and the vehicle-mounted ATP selects the shortest station entering signal machine X as a mobile authorization terminal.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A method for checking mobile authorization by vehicle-mounted ATP equipment is characterized by comprising the following steps: the vehicle-mounted ATP equipment utilizes an electronic map, combines the ground real-time signal machine and the turnout state to realize the calculation of the mobile authorization terminal, carries out safety check with the ground mobile authorization, and selects the strictest terminal as the terminal of the train mobile authorization.
2. The method for checking the mobile authorization of the vehicle-mounted ATP device according to claim 1, wherein the method specifically includes the following steps:
step 1), after the vehicle-mounted ATP equipment is powered on and initialization is completed, updating a line electronic map;
step 2) the vehicle-mounted ATP equipment acquires the current position information of the train according to the speed and distance measuring state;
step 3) the vehicle radio station forwards the train position report to the RBC in a wireless communication mode;
step 4) judging the current station of the train by the trackside equipment according to the train position report, calculating the station in front of the train according to the train operation plan or the access opening state, forwarding the signalers and the turnout states of the station and the station in front to the vehicle-mounted ATP equipment through a wireless network, and simultaneously sending the movement authorization to the vehicle-mounted ATP equipment by the RBC;
step 5) the vehicle-mounted radio station forwards the received trackside signal machine and turnout states and the mobile authorization sent by the RBC to the vehicle-mounted ATP equipment;
step 6), calculating the movement authorization by a vehicle-mounted computer in the vehicle-mounted ATP equipment according to the states of the signal machine and the turnout by combining an electronic map;
and 7) the vehicle-mounted computer selects the strictest one of the autonomously calculated mobile authorization and the mobile authorization sent by the RBC to monitor the running of the train.
3. The method for checking the movement authorization of the vehicle-mounted ATP device according to claim 2, wherein the information of the line electronic map in the step 1) includes track division, signal machine positions, switch positions and connection relations of signal points.
4. The method for checking the mobile authorization of the vehicle-mounted ATP device according to claim 2, wherein the step 2) specifically includes: and speed and displacement information is acquired through a speed sensor, and ground transponder information is received through a transponder antenna to carry out position correction.
5. The method for checking the mobile authorization of the vehicle-mounted ATP device according to claim 4, wherein the step 2) further comprises: and receiving the GNSS satellite navigation information by using the satellite receiver equipment to perform accurate train positioning and position correction.
6. The method for checking the movement authorization of the vehicle-mounted ATP device according to claim 2, wherein the trackside devices in the step 4) utilize existing trackside devices or are additionally arranged as required to forward signal and switch states.
7. The method for checking the movement authorization of the vehicle-mounted ATP device according to claim 2, wherein the trackside device in the step 4) forwards the signal state to the vehicle-mounted ATP device according to a set period, and immediately sends the changed state if the ground signal changes.
8. The method for checking the mobile authorization of the vehicle-mounted ATP device according to claim 2, wherein the step 6) specifically comprises:
601) the vehicle-mounted ATP equipment carries out route searching along the current track of the train to the running direction of the train according to the current position of the train, and records all signal points and the states of the signal points on a route in front of the train in a train route sequence according to the signal point connection relation described in a route electronic map file;
602) on a straight strand line, the vehicle-mounted ATP takes the position of the train as a starting point, and signal points are sequentially recorded along the running direction of the train on a track where the train is located; after the route search meets the turnout, according to the turnout state sent by the trackside equipment, a track corresponding to the turnout state in the line electronic map is searched, the route search track is switched, and the turnout and the state are recorded in a route sequence;
603) when the vehicle-mounted ATP carries out route searching, the validity of the state of the signal point is judged: when the signal point is a signal machine and the state of the signal machine is a red light or other non-green light state, the route searching is stopped; when the signal point is a turnout, the turnout is in a four-switch state, and is in an abnormal state of positioning and reverse position, the route searching is stopped at a protection signal machine in front of the turnout; when the turnout is positioned or reversed, whether a train can normally pass through a turnout zone or not is judged according to the turnout state, if the train cannot pass through the turnout zone, the turnout position is also considered to be illegal, and the approach search is stopped at a protection signal machine in front of the turnout;
604) and after the route searching is finished, taking the route sequence end point as a mobile authorization end point calculated by the vehicle-mounted ATP.
9. The method for checking the mobile authorization of the vehicle-mounted ATP device according to claim 2, wherein the step 7) is specifically: and the vehicle-mounted ATP equipment compares the autonomous movement authorization with the movement authorization sent by the RBC, selects the strictest one as the final movement authorization, and calculates a target distance and speed curve to monitor the safe operation of the train.
10. The method as claimed in claim 2, wherein the electronic map of the route is directly burned into the ATP device via software, or a ground departure test server is provided, the ATP device communicates with the departure test server before departure, and the electronic map of the route stored locally on the vehicle is updated when the verification is inconsistent.
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| CN114132367B (en) * | 2021-12-03 | 2024-04-26 | 交控科技股份有限公司 | Train control method, device and equipment |
| CN115092210A (en) * | 2022-05-31 | 2022-09-23 | 中国铁路通信信号股份有限公司 | CBTC train section degradation protection method and device |
| CN115583180A (en) * | 2022-10-26 | 2023-01-10 | 西南交通大学 | Method for suppressing arcing overvoltage and excessive phase-splitting VCB operation overvoltage |
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