CN115071782B - Train front end screening method, device and system - Google Patents
Train front end screening method, device and system Download PDFInfo
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- CN115071782B CN115071782B CN202210793751.8A CN202210793751A CN115071782B CN 115071782 B CN115071782 B CN 115071782B CN 202210793751 A CN202210793751 A CN 202210793751A CN 115071782 B CN115071782 B CN 115071782B
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- 238000012216 screening Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000008447 perception Effects 0.000 claims description 32
- 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
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
Classifications
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses a train front end screening method, device and system, belonging to the field of rail transit, comprising the following steps: s1, setting a vehicle-mounted ITE subsystem on the basis of an IVOC subsystem for identifying a train obstacle; s2, transmitting the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and completing front screening of the train according to the perceived 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 is based on communication or the train operation control system is based on train communication, whether the hidden train or the non-position report train exists in front of the train or not is judged, the train is dependent on the safe position of the train and the acquisition state of the axle counting section, and only when the train operates within a certain distance from the axle counting point in front and at least one section in front is idle, the condition that the hidden train or the non-position report train does not exist in front of the train can be judged, and the screening of the front end of the train is completed. The existing front-end screening technical scheme of the train causes lower front-end screening efficiency of the train, and the technical problem needs to be solved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a train front end screening method, device and system, so that the train front end screening efficiency is further improved.
The invention aims at realizing the following scheme:
a train front-end screening method comprises the following steps:
s1, setting a vehicle-mounted ITE subsystem on the basis of an IVOC subsystem for identifying a train obstacle;
s2, transmitting the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and completing front screening of the train according to the perceived information after the TIOC subsystem acquires the position information of the obstacle.
Further, in step S2, the step of completing front screening of the train according to the sensing information specifically includes the following steps:
when the distance S from the minimum safety front end of the train to the first axle counting point in front of the train is larger than or equal to the minimum train length Lmin and smaller than or equal to the maximum sensing distance Lp of the train, the train intelligently senses and identifies no obstacle 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 judges that no obstacle exists in front of the train according to the information and judges that the front end of the train passes through screening.
Further, in step S2, the step of completing front screening of the train according to the sensing information specifically includes the following steps:
when the distance S between the train and the front train is smaller than or equal to the maximum perceived distance Lp, the intelligent perception of the IVOC is used for recognizing that no obstacle exists between the train and the front train, the IVOC reports the information to the TIOC, and the TIOC judges that no obstacle exists in front of the train according to the information, and judges that the front end of the train passes through screening.
Further, in step S2, the step of completing front screening of the train according to the sensing information specifically includes the following steps:
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 recognize the front train through perception, 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 first axle counting point in back of the front train is also smaller than Lp, the train recognizes no obstacle between the train and the front axle counting point and no obstacle between the front train and the rear axle counting point through IVOC intelligent perception, the IVOC reports information to the TIOC, and the TIOC considers no obstacle in front of the train according to the information, and judges that the front end of the train passes through screening.
Further, in step S1, the on-board ITE subsystem is disposed at the front end and the rear end of the train, and identifies obstacles in front of and behind the train, respectively.
Further, in step S1, the on-board ITE subsystem provided in the IVOC subsystem is further used for measuring a distance, calculating a relative speed between the own vehicle and a preceding vehicle, and accurately positioning the train.
Further, in step S1, the train obstacle includes a hidden car or other car not reporting a location.
Further, the IVOC subsystem and the TIOC subsystem are both components of a train control system for vehicle-to-vehicle communication.
An apparatus for front-end screening of a train comprising a memory and a processor, in which program instructions are stored which, when loaded into operation by the processor, perform a method as claimed in any one of the preceding claims.
A system for front-end screening of a train comprising an apparatus as claimed in any one of the preceding claims.
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 train communication train control system of a track traffic train, and compared with the prior scheme, the intelligent sensing technology is used on the train control system, and further, the optimized method based on sensing is provided for the train front end screening on the basis of the train safety position and the acquisition state of a metering section of the train 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 invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a prior art front truck screening method;
FIG. 2 is a schematic diagram of a scene one of a front car screening method based on perception;
FIG. 3 is a schematic diagram of a scene two of a front car screening method based on perception;
fig. 4 is a schematic diagram of a scene three of a front car screening method based on perception.
Detailed Description
The invention is further described below with reference to the drawings and examples. All of the features disclosed in all of the embodiments of this specification, or all of the steps in any method or process disclosed implicitly, except for the mutually exclusive features and/or steps, may be combined and/or expanded and substituted in any way.
In the process of seeking to solve the problems in the background, the inventor of the present invention further finds that the existing train front end screening method is a train control system based on existing train communication, and the train control system comprises a subsystem: TIOC (TCT Intelligent Object Controller; intelligent object Controller) and IVOC (Intelligent Vehicle On-Board Controller; on-Board Controller), wherein IVOC is in turn divided into subsystems: ITP (Intelligent Train Protection; train intelligent protection system), ITO (Intelligent Train Operationn; train intelligent driving system). As shown in fig. 1, the existing train front screening scheme only determines that the train front screening passes when the following two conditions are satisfied, the TIOC considers that there is no obstacle in front of the train:
the first condition is that the distance between the minimum safe front end of the train and the front end axle counting point of the axle counting section where the train is located is smaller than the minimum length Lmin;
and the adjacent axle counting section in front of the axle counting section where the train is located is idle.
The technical scheme for screening the front end of the train has the following technical problems in the specific working process: only when the train runs within a certain distance from the front axle counting point and at least one section in front is idle, the front of the train can be judged to have no hidden car or no position report car, and the front end screening of the train is completed. Therefore, there is a problem of inefficiency.
According to the invention, through creative thinking, on the basis of the existing subsystem, a vehicle-mounted ITE (Intelligent Train Eye; vehicle-mounted intelligent eagle eye system) subsystem is added on the basis of the existing IVOC, and is responsible for intelligent perception of the train, so that the front obstacle can be identified, the distance can be measured, the relative speed between the train 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 technical scheme for screening the front end of the train based on perception is provided, and the technical scheme specifically comprises a method, a device and a system. Wherein, the obstacle is a hidden car or other cars not reporting positions.
Further elaboration is as follows:
when the distance S from the minimum safety front end of the train to the first axle counting point in front of the axle counting section 1G is larger than or equal to the minimum train length Lmin and smaller than or equal to the maximum perception distance Lp of the train, the intelligent perception of the train through the IVOC can identify 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, and the TIOC judges that no obstacle exists in front of the train according to the information, and judges that the front end of the train passes through the screening of the front end of the train, so that the screening efficiency of the front end of the train is improved; (see FIG. 2)
When a train is arranged on the adjacent axle counting section 2G in front of the second scene and the distance S between the train and 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, and the front screening of the train is judged, so that the front screening efficiency of the train is improved; (see FIG. 3)
Scene three, there is the car on the adjacent axle counting section 2G in train front, train distance before the car is greater than the biggest perception distance Lp makes the train unable through perception discernment preceding car, but train distance in front of its first axle counting point distance S1 is less than biggest perception distance Lp, preceding car distance behind it first axle counting point distance S2 is also less than Lp, the train passes through IVOC intelligent perception can discern respectively between the train to the preceding axle counting point no obstacle, preceding car to the rear between the axle counting point no obstacle, IVOC reports the information for TIOC, TIOC considers that train front is no obstacle according to this, judge train front end screening passes, train front end screening efficiency has been improved. (see FIG. 4)
According to the technical scheme, the obstacle in the front visible range is detected according to the vehicle-mounted intelligent sensing technology of the communication vehicle, and the front screening efficiency of the train is improved by optimizing the front screening method of the original train of the train communication train control system.
In other embodiments of the invention, an apparatus for front-end screening of a train is provided, comprising a memory and a processor, in which program instructions are stored which, when loaded into operation by the processor, perform the method as in the above embodiments. ,
in other embodiments of the invention, a system for train front end screening 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 an IVOC subsystem for identifying a train obstacle;
s2, transmitting the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and completing front screening of the train according to the perceived information after the TIOC subsystem acquires the position information of the obstacle.
Example 2
Based on embodiment 1, in step S2, the screening of the front of the train is completed according to the sensing information, which specifically includes the following sub-steps:
when the distance S from the minimum safety front end of the train to the first axle counting point in front of the train is larger than or equal to the minimum train length Lmin and smaller than or equal to the maximum sensing distance Lp of the train, the train intelligently senses and identifies no obstacle 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 judges that no obstacle exists in front of the train according to the information and judges that the front end of the train passes through screening.
Example 3
Based on embodiment 1, in step S2, the screening of the front of the train is completed according to the sensing information, which specifically includes the following sub-steps:
when the distance S between the train and the front train is smaller than or equal to the maximum perceived distance Lp, the intelligent perception of the IVOC is used for recognizing that no obstacle exists between the train and the front train, the IVOC reports the information to the TIOC, and the TIOC judges that no obstacle exists in front of the train according to the information, and judges that the front end of the train passes through screening.
Example 4
Based on embodiment 1, in step S2, the screening of the front of the train is completed according to the sensing information, which specifically includes the following sub-steps:
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 recognize the front train through perception, 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 first axle counting point in back of the front train is also smaller than Lp, the train recognizes no obstacle between the train and the front axle counting point and no obstacle between the front train and the rear axle counting point through IVOC intelligent perception, the IVOC reports information to the TIOC, and the TIOC considers no obstacle in front of the train according to the information, and judges that the front end of the train passes through screening.
Example 5
On the basis of embodiment 1, in step S1, the in-vehicle ITE subsystems are provided at the front and rear ends of the train, respectively identifying obstacles in front of and behind the train.
Example 6
On the basis of embodiment 1, in step S1, the on-board ITE subsystem provided in the IVOC subsystem is also used for measuring the distance, calculating the relative speed of the own vehicle and the preceding vehicle, and accurately positioning the train.
Example 7
On the basis of embodiment 1, in step S1, the train obstacle includes a hidden car or other car not reporting a position.
Example 8
On the basis of embodiment 1, the IVOC subsystem and the TIOC subsystem are both 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, the memory having stored therein program instructions which, when loaded into operation by the processor, perform the method of any of embodiments 1-8.
Example 10
A system for front-end screening of a train comprising the apparatus of example 9.
The units involved 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 provided in a processor. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.
According to one aspect of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions are read from the computer-readable storage medium by a processor of a computer device, and executed by the processor, cause the computer device to perform the methods provided in the various alternative implementations described above.
As another aspect, the present application also provides a computer-readable medium that may be contained in the electronic device described in the above embodiment; or may exist alone without being incorporated into the electronic device. The computer-readable medium carries one or more programs which, when executed by the electronic device, cause the electronic device to implement the methods described in the above embodiments.
The invention is not related in part to the same as or can be practiced with the prior art.
The foregoing technical solution is only one embodiment of the present invention, and various modifications and variations can be easily made by those skilled in the art based on the application methods and principles disclosed in the present invention, not limited to the methods described in the foregoing specific embodiments of the present invention, so that the foregoing description is only preferred and not in a limiting sense.
In addition to the foregoing examples, those skilled in the art will recognize from the foregoing disclosure that other embodiments can be made and in which various features of the embodiments can be interchanged or substituted, and that such modifications and changes can be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The train front-end screening method is characterized by comprising the following steps of:
s1, setting a vehicle-mounted ITE subsystem on the basis of an IVOC subsystem for identifying a train obstacle;
s2, transmitting the position information of the train obstacle identified by the vehicle-mounted ITE subsystem to the TIOC subsystem, and completing front screening of the train according to the perceived information after the TIOC subsystem acquires the position information of the obstacle; the front screening of the train is finished according to the perception information, and the method specifically comprises the following sub-steps: when the distance S from the minimum safety front end of the train to the first axle counting point in front of the train is larger than or equal to the minimum train length Lmin and smaller than or equal to the maximum perception distance Lp of the train, the train intelligently perceives and recognizes that no obstacle exists between the train and the first axle counting point in front of the train through IVOC, the IVOC reports the information to TIOC, and the TIOC judges that no obstacle exists in front of the train according to the information and judges that the front end of the train passes through screening;
the front screening of the train is finished according to the perception information, and the method specifically comprises the following sub-steps: when the distance S from the train to the front train is smaller than or equal to the maximum perceived distance Lp, the intelligent perception of the train through the IVOC recognizes that no obstacle exists between the train and the front train, the IVOC reports the information to the TIOC, and the TIOC judges that no obstacle exists in front of the train according to the information, and judges that the front end of the train passes through screening;
the front screening of the train is finished according to the perception information, and the method specifically comprises the following sub-steps:
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 recognize the front train through perception, 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 first axle counting point in back of the front train is also smaller than Lp, the train recognizes no obstacle between the train and the front axle counting point and no obstacle between the front train and the rear axle counting point through IVOC intelligent perception, the IVOC reports information to the TIOC, and the TIOC considers no obstacle in front of the train according to the information, and judges that the front end of the train passes through screening.
2. The method of claim 1, wherein in step S1, the on-board ITE subsystem is provided at the front and rear ends of the train to identify obstacles in front of and behind the train, respectively.
3. 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 a distance, calculating a relative speed of the own vehicle and a preceding vehicle, and accurately positioning the train.
4. The method according to claim 1, wherein in step S1, the train obstacle comprises a hidden car or other car not reporting a position.
5. The method of claim 1, wherein the IVOC subsystem and the TIOC subsystem are both part of a train control system for vehicle-to-vehicle communications.
6. An apparatus for front-end screening of a train, comprising a memory and a processor, in which program instructions are stored which, when loaded into operation by the processor, perform the method of any of claims 1 to 5.
7. A system for front-end screening of a train comprising the apparatus of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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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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| Application Number | Priority Date | Filing Date | Title |
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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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| CN115071782A CN115071782A (en) | 2022-09-20 |
| CN115071782B true CN115071782B (en) | 2024-03-15 |
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