CN115071782A - Method, device and system for screening front end of train - Google Patents
Method, device and system for screening front end of train Download PDFInfo
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- CN115071782A CN115071782A CN202210793751.8A CN202210793751A CN115071782A CN 115071782 A CN115071782 A CN 115071782A CN 202210793751 A CN202210793751 A CN 202210793751A CN 115071782 A CN115071782 A CN 115071782A
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- 238000012216 screening Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008447 perception Effects 0.000 claims description 37
- 238000004891 communication Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000002452 interceptive effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/04—Control, warning or like safety means along the route or between vehicles or trains for monitoring the mechanical state of the route
- B61L23/041—Obstacle detection
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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 train for signalling purposes
- B61L15/0072—On-board train data handling
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Abstract
The invention discloses a train front end screening method, a train front end screening device and a train front end screening system, which belong to the field of rail transit and comprise the following steps: s1, setting a vehicle-mounted ITE subsystem on the basis of the IVOC subsystem for identifying train obstacles; and S2, sending the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and finishing train front screening according to the sensing information after the TIOC subsystem acquires the position information of the obstacle. The invention further improves the screening efficiency of the front end of the train.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a train front end screening method, device and system.
Background
Whether the train operation control system based on communication or the train operation control system based on vehicle-to-vehicle communication judges whether a hidden vehicle or a non-position report vehicle exists in front of the train or not depending on the safe position of the train and the collecting state of the axle counting section, and the front of the train can be judged to be free of the hidden vehicle or the non-position report vehicle only when the train runs to a certain distance according to the front axle counting point and at least one section in front is idle, so that the screening of the front end of the train is completed. The existing technical scheme for screening the front end of the train leads to low screening efficiency of the front end of the train, and the technical problem needs to be solved urgently.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a train front end screening method, a train front end screening device and a train front end screening system, so that the train front end screening efficiency is further improved.
The purpose of the invention is realized by the following scheme:
a train front end screening method comprises the following steps:
s1, setting a vehicle-mounted ITE subsystem on the basis of the IVOC subsystem for identifying train obstacles;
and S2, sending the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and finishing train front screening according to the sensing information after the TIOC subsystem acquires the position information of the obstacle.
Further, in step S2, the step of completing train front screening according to the perception information specifically includes the substeps of:
when the distance S from the minimum safe front end of the train to the first axle counting point in front of the train is greater than or equal to the minimum length Lmin and less than or equal to the maximum sensing distance Lp of the train, the train intelligently senses and identifies that no obstacle exists between the train and the first axle counting point in front of the train through the IVOC, the IVOC reports the information to the TIOC, and the TIOC considers that no obstacle exists in front of the train according to the information and judges that the front end of the train passes the screening.
Further, in step S2, the step of completing train front screening according to the perception information specifically includes the substeps of:
the train is arranged on the adjacent axle counting section 2G in front of the train, when the distance S from the train to the train in front is smaller than or equal to the maximum perception distance Lp, the train recognizes that no obstacle exists between the train and the front train through IVOC intelligent perception, the IVOC reports the information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to be screened.
Further, in step S2, the step of completing train front screening according to the perception information specifically includes the substeps of:
the adjacent axle counting section 2G in front of the train is provided with a train, the distance between the train and the front train is larger than the maximum perception distance Lp, so that the train cannot pass through the perception recognition front train, but the distance S1 between the train and the first axle counting point in front of the train is smaller than the maximum perception distance Lp, the distance S2 between the front train and the first axle counting point behind the front train is also smaller than Lp, the train respectively recognizes that no obstacle exists between the train and the front axle counting point and between the front train and the axle counting point behind the front train through IVOC intelligent perception, the IVOC reports information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to pass through screening.
Further, in step S1, the on-board ITE subsystems are provided at the front end and the rear end of the train, and identify obstacles in front of and behind the train, respectively.
Further, in step S1, the on-board ITE subsystem provided in the IVOC subsystem is also used to measure the distance, calculate the relative speed between the host vehicle and the front vehicle, and precisely locate the train.
Further, in step S1, the train obstacle includes a hidden train or other non-reporting position train.
Furthermore, the IVOC subsystem and the TIOC subsystem are all components of a train control system for vehicle-to-vehicle communication.
An apparatus for train front end screening, comprising a memory and a processor, wherein program instructions are stored in the memory, which when loaded and executed by the processor perform a method as set forth in any one of the preceding claims.
A system for screening the front end of a train comprising an apparatus as described in any of the above.
The beneficial effects of the invention include:
the invention provides an optimized front-end screening scheme aiming at a train front-end screening scheme of a rail transit train-vehicle communication train control system, and compared with the existing scheme, an intelligent sensing technology is used on the train control system, and a perception-based optimization method is further provided for train front-end screening on the basis of the train safety position and the axle counting section acquisition state of the train-vehicle communication train control system, so that the front-end screening efficiency is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art front vehicle screening method;
FIG. 2 is a schematic diagram of a first scenario of a perception-based lead vehicle screening method;
FIG. 3 is a schematic diagram of a second scenario of a perception-based lead vehicle screening method;
fig. 4 is a schematic diagram of a third scene of a perception-based preceding vehicle screening method.
Detailed Description
The invention is further described with reference to the following figures and examples. All features disclosed in all embodiments in this specification, or all methods or process steps implicitly disclosed, may be combined and/or expanded, or substituted, in any way, except for mutually exclusive features and/or steps.
In the process of seeking a solution to the problems in the background, the inventors of the present invention further find that the existing train front-end screening method is a train control system based on existing train-to-train communication, and includes a subsystem: TIOC (TCT Intelligent Object Controller) and IVOC (Intelligent Vehicle On-Board Controller), wherein IVOC is divided into various subsystems: ITP (Intelligent Train Protection), ITO (Intelligent Train operation). As shown in fig. 1, in the existing screening scheme for the front end of the train, the TIOC considers that there is no obstacle in front of the train and determines that the screening of the front end of the train passes only when the following two conditions are met:
the method comprises the following steps that firstly, the distance between the minimum safe front end of a train and a front end axle counting point of an axle counting section where the train is located is smaller than the minimum train length Lmin;
and secondly, leaving the front adjacent axle counting section of the axle counting section where the train is located idle.
According to the technical scheme for screening the front end of the train, the following technical problems exist in the specific working process: and only when the train runs to a certain distance according to the front axle counting point and at least one section in front is idle, judging whether a hidden train or a non-position report train is arranged in front of the train, and finishing the screening of the front end of the train. Therefore, there is a problem of low efficiency.
Through creative thinking, a vehicle-mounted ITE (Intelligent Train Eye) subsystem is added on the basis of the existing subsystem on the basis of IVOC (interactive railway Eye) and is responsible for the Intelligent sensing function of the Train, the front obstacle can be identified, the distance can be measured, the relative speed of the vehicle and the front Train can be calculated, and the Train can be accurately positioned.
On the basis of the structural change of the train control system, a train front end screening technical scheme based on sensing is provided, and the train front end screening technical scheme specifically comprises a method, a device and a system. The obstacle is a hidden vehicle or other vehicle with an unreported position.
Further elaboration is as follows:
in a first scene, an adjacent axle counting section 2G in front of an axle counting section 1G where a train is located is idle, when the distance S from the minimum safe front end of the train to a first axle counting point in front of the train is greater than or equal to the minimum train length Lmin and less than or equal to the maximum sensing distance Lp of the train, the train can recognize that no obstacle exists between the train and the first axle counting point in front of the train through IVOC intelligent sensing, the IVOC reports the information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to be screened, so that the screening efficiency of the front end of the train is improved; (see FIG. 2)
In a second scene, vehicles are arranged on an adjacent axle counting section 2G in front of the train, when the distance S from the train to the train in front is smaller than or equal to the maximum perception distance Lp, the train can recognize that no obstacle exists between the train and the train in front through IVOC intelligent perception, the IVOC reports the information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, the front end of the train is judged to be screened, and the screening efficiency of the front end of the train is improved; (see FIG. 3)
And a third scene is that a train is arranged on an adjacent axle counting section 2G in front of the train, the distance between the train and the front train is greater than the maximum perception distance Lp, so that the train cannot pass through the perception recognition front train, but the distance S1 between the train and the first axle counting point in front of the train is smaller than the maximum perception distance Lp, the distance S2 between the front train and the first axle counting point behind the front train is also smaller than Lp, the train can respectively recognize that no obstacle exists between the train and the front axle counting point and between the front train and the axle counting point behind the front train through IVOC intelligent perception, the IVOC reports information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, the front end of the train passes through screening is judged, and the front end screening efficiency of the train is improved. (see FIG. 4)
Through the technical scheme, the obstacles in the front visual range are detected according to the vehicle-mounted intelligent sensing technology of the communication vehicle, optimization is carried out on the basis of the original train front screening method of the vehicle-vehicle communication train control system, and the train front end screening efficiency is improved.
In other embodiments of the present invention, an apparatus for train front end screening is provided, comprising a memory and a processor, wherein program instructions are stored in the memory, and when loaded and executed by the processor, the method as in the above embodiments is performed. ,
in other embodiments of the present invention, a system for front end screening of a train is provided, using the apparatus of the above embodiments.
Example 1
A train front end screening method comprises the following steps:
s1, setting a vehicle-mounted ITE subsystem on the basis of the IVOC subsystem for identifying train obstacles;
and S2, sending the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and finishing train front screening according to the sensing information after the TIOC subsystem acquires the position information of the obstacle.
Example 2
On the basis of embodiment 1, in step S2, the method for completing train front screening according to the perception information specifically includes the following substeps:
the adjacent axle counting district section 2G in front of axle counting district section 1G where the train is located is idle, when the distance S from the minimum safe front end of the train to the first axle counting point in front of the train is more than or equal to the minimum train length Lmin and less than or equal to the maximum sensing distance Lp of the train, the train passes through IVOC intelligent sensing and identifies that no obstacle exists between the train and the first axle counting point in front of the train, the IVOC reports the information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to be screened.
Example 3
On the basis of embodiment 1, in step S2, the method for completing train front screening according to the perception information specifically includes the following substeps:
the train is arranged on the adjacent axle counting section 2G in front of the train, when the distance S from the train to the train in front is smaller than or equal to the maximum perception distance Lp, the train recognizes that no obstacle exists between the train and the front train through IVOC intelligent perception, the IVOC reports the information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to be screened.
Example 4
On the basis of embodiment 1, in step S2, the method for completing train front screening according to the perception information specifically includes the following substeps:
the adjacent axle counting section 2G in front of the train is provided with a train, the distance between the train and the front train is larger than the maximum perception distance Lp, so that the train cannot pass through the perception recognition front train, but the distance S1 between the train and the first axle counting point in front of the train is smaller than the maximum perception distance Lp, the distance S2 between the front train and the first axle counting point behind the front train is also smaller than Lp, the train respectively recognizes that no obstacle exists between the train and the front axle counting point and between the front train and the axle counting point behind the front train through IVOC intelligent perception, the IVOC reports information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to pass through screening.
Example 5
On the basis of embodiment 1, in step S1, the on-board ITE subsystems are provided at the front end and the rear end of the train, and recognize obstacles in front of and behind the train, respectively.
Example 6
On the basis of the embodiment 1, in step S1, the on-board ITE subsystem provided in the IVOC subsystem is also used for measuring distance, calculating the relative speed of the host vehicle and the front vehicle, and accurately positioning the train.
Example 7
On the basis of embodiment 1, in step S1, the train obstacle includes a hidden train or other unreported-position trains.
Example 8
On the basis of the embodiment 1, the IVOC subsystem and the TIOC subsystem are all components of a train control system for vehicle-to-vehicle communication.
Example 9
An apparatus for front-end screening of a train, comprising a memory and a processor, wherein program instructions are stored in the memory, and when the program instructions are loaded and executed by the processor, the method according to any one of embodiments 1 to 8 is performed.
Example 10
A system for front end screening of a train comprising the apparatus of embodiment 9.
The units described in the embodiments of the present invention may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.
According to an aspect of the application, a computer program product or computer program is provided, comprising computer instructions, the computer instructions being stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method provided in the various alternative implementations described above.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiment; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
The above-described embodiment is only one embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be easily made based on the application and principle of the present invention disclosed in the present application, and the present invention is not limited to the method described in the above-described embodiment of the present invention, so that the above-described embodiment is only preferred, and not restrictive.
Other embodiments than the above examples may be devised by those skilled in the art based on the foregoing disclosure, or by adapting and using knowledge or techniques of the relevant art, and features of various embodiments may be interchanged or substituted and such modifications and variations that may be made by those skilled in the art without departing from the spirit and scope of the present invention are intended to be within the scope of the following claims.
Claims (10)
1. A train front end screening method is characterized by comprising the following steps:
s1, setting a vehicle-mounted ITE subsystem on the basis of the IVOC subsystem for identifying train obstacles;
and S2, sending the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and finishing train front screening according to the sensing information after the TIOC subsystem acquires the position information of the obstacle.
2. The train front end screening method according to claim 1, wherein in step S2, the train front screening is completed according to the perception information, and specifically includes the substeps of:
when the distance S from the minimum safe front end of the train to the first axle counting point in front of the train is greater than or equal to the minimum length Lmin and less than or equal to the maximum sensing distance Lp of the train, the train intelligently senses and identifies that no obstacle exists between the train and the first axle counting point in front of the train through the IVOC, the IVOC reports the information to the TIOC, and the TIOC considers that no obstacle exists in front of the train according to the information and judges that the front end of the train passes the screening.
3. The train front end screening method according to claim 1, wherein in step S2, the train front screening is completed according to the perception information, and specifically includes the substeps of:
the train is arranged on the adjacent axle counting section 2G in front of the train, when the distance S from the train to the train in front is smaller than or equal to the maximum perception distance Lp, the train recognizes that no obstacle exists between the train and the front train through IVOC intelligent perception, the IVOC reports the information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to be screened.
4. The train front end screening method according to claim 1, wherein in step S2, the train front screening is completed according to the perception information, and specifically includes the substeps of:
the adjacent axle counting section 2G in front of the train is provided with a train, the distance between the train and the front train is larger than the maximum perception distance Lp, so that the train cannot pass through the perception recognition front train, but the distance S1 between the train and the first axle counting point in front of the train is smaller than the maximum perception distance Lp, the distance S2 between the front train and the first axle counting point behind the front train is also smaller than Lp, the train respectively recognizes that no obstacle exists between the train and the front axle counting point and between the front train and the axle counting point behind the front train through IVOC intelligent perception, the IVOC reports information to the TIOC, the TIOC considers that no obstacle exists in front of the train according to the information, and the front end of the train is judged to pass through screening.
5. The train front end screening method according to claim 1, wherein in step S1, the on-board ITE subsystems are provided at the train front end and the train rear end, respectively identifying obstacles in front of and behind the train.
6. The train front-end screening method according to claim 1, wherein in step S1, the on-board ITE subsystem provided in the IVOC subsystem is further used for measuring distance, calculating relative speed of the host vehicle and the lead vehicle, and accurately positioning the train.
7. The train front-end screening method according to claim 1, wherein in step S1, the train obstacle includes a hidden train or other unreported-position train.
8. The train front-end screening method of claim 1, wherein the IVOC subsystem and the TIOC subsystem are both components of a train-to-train communication train control system.
9. An apparatus for front-end screening of a train, comprising a memory and a processor, wherein program instructions are stored in the memory, and when the program instructions are loaded and executed by the processor, the method according to any one of claims 1 to 8 is performed.
10. A system for screening the front end of a train comprising the apparatus of claim 9.
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| CN202210793751.8A CN115071782B (en) | 2022-07-07 | 2022-07-07 | Train front end screening method, device and system |
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| CN202210793751.8A CN115071782B (en) | 2022-07-07 | 2022-07-07 | Train front end screening method, device and system |
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