CN-116061988-B - Track segment occupancy detection method, system and storage medium

CN116061988BCN 116061988 BCN116061988 BCN 116061988BCN-116061988-B

Abstract

The invention discloses a track section occupation detection method, a track section occupation detection system and a storage medium. The track section occupation detection system comprises vehicle-mounted equipment, ground equipment and a ground calculation unit, wherein the vehicle-mounted equipment comprises at least two vehicle-mounted labels arranged on a train, the ground equipment comprises a ground calculation unit and a plurality of ground base stations, the ground calculation unit is arranged along a track to be detected and is respectively connected with the ground base stations, the ground base stations are used for initiating first positioning requests, the vehicle-mounted labels are used for sending first response information according to the first positioning requests, the ground base stations are also used for receiving the first response information, a first relative distance between the vehicle-mounted labels and the ground base stations is obtained according to the first response information, and the ground calculation unit is used for obtaining occupation information of the track section according to the first relative distance between each ground base station and each vehicle-mounted label. The track section occupation detection system can detect the occupation condition of the track section.

Inventors

ZHANG YONGBIAO
ZHUO KAIKUO
LI XIAOMEI

Assignees

比亚迪股份有限公司

Dates

Publication Date: 20260505
Application Date: 20211029

Claims (7)

1. A track segment occupancy detection system, comprising: The vehicle-mounted equipment comprises at least two vehicle-mounted tags mounted on a train; The ground equipment comprises a ground resolving unit and a plurality of ground base stations, the ground base stations are arranged along a track to be detected, and the ground resolving unit is respectively connected with each ground base station; The ground base station is used for initiating a first positioning request, the vehicle-mounted tag is used for sending first response information according to the first positioning request, the ground base station is also used for receiving the first response information and obtaining a first relative distance between the ground base station and the vehicle-mounted tag according to the first response information, and the ground resolving unit is used for obtaining occupation information of a track section according to the first relative distance between each ground base station and each vehicle-mounted tag; The ground resolving unit is specifically configured to: Grouping a plurality of ground base stations to obtain n base station combinations, wherein each base station combination comprises two ground base stations; obtaining positioning results of the n base station combinations on each vehicle-mounted tag according to the first relative distance; Obtaining the occupation information of the track section according to the positioning result; the vehicle-mounted equipment comprises two vehicle-mounted labels, namely a first label and a second label, and the ground resolving unit is specifically used for when obtaining the occupation information of the track section according to the positioning result: Obtaining a first position of the first tag according to n positioning results of n base station combinations on the first tag; obtaining a second position of the second tag according to n positioning results of n base station combinations on the second tag; obtaining occupancy information of the track section according to the first position and the second position; the ground solution unit is further configured to, prior to deriving occupancy information of the track section from the first location and the second location: Calculating a first distance between the first position and the second position, and acquiring a first installation distance between the first tag and the second tag; determining that the first distance is consistent with the first installation distance; The ground resolving unit is specifically further configured to: When at least n-1 positioning results in n positioning results of the n base station combinations on the first tag are consistent, obtaining the first position according to the consistent at least n-1 positioning results; when at least n-1 positioning results in n positioning results of the n base station combinations on the second label are consistent, obtaining the second position according to the consistent at least n-1 positioning results.
2. The track segment occupancy detection system of claim 1, wherein the vehicle-mounted tag is equipped with a backup battery, and the ground base station is mounted at the same height as the vehicle-mounted tag.
3. A track segment occupancy detection method, comprising: initiating a first positioning request according to the serial numbers of the base stations in the same scanning period through a plurality of ground base stations; Receiving first response information of each vehicle-mounted tag for a corresponding first positioning request through each ground base station, and obtaining a first relative distance between each ground base station and each vehicle-mounted tag according to the first response information; obtaining the occupation information of the track section according to the first relative distance; the obtaining the occupation information of the track section according to the first relative distance includes: Dividing a plurality of ground base stations to obtain n base station combinations, wherein each base station combination comprises two ground base stations; Obtaining positioning results of n base station combinations on each vehicle-mounted tag according to the first relative distance based on a three-point positioning method; Obtaining the occupation information of the track section according to the positioning result; Two vehicle-mounted labels are arranged on the train and respectively marked as a first label and a second label, and the occupation information of the track section is obtained according to the positioning result, and the method comprises the following steps: Obtaining a first position of the first tag according to n positioning results of n base station combinations on the first tag; obtaining a second position of the second tag according to n positioning results of n base station combinations on the second tag; obtaining occupancy information of the track section according to the first position and the second position; before deriving occupancy information for the track section from the first location and the second location, the method further comprises: Calculating a first distance between the first position and the second position, and acquiring a first installation distance between the first tag and the second tag; determining that the first distance is consistent with the first installation distance; the obtaining the first position of the first tag according to the n positioning results of the n base station combinations on the first tag includes: When at least n-1 positioning results in n positioning results of the n base station combinations on the first tag are consistent, obtaining the first position according to the consistent at least n-1 positioning results; the obtaining the second position of the second tag according to the n positioning results of the n base station combinations on the second tag includes: when at least n-1 positioning results in n positioning results of the n base station combinations on the second label are consistent, obtaining the second position according to the consistent at least n-1 positioning results.
4. A track segment occupancy detection method according to claim 3, wherein the method further comprises: And if the first distance is inconsistent with the first installation distance, taking the track section occupation information obtained in the previous scanning period as the track section occupation information of the current scanning period.
5. A track segment occupancy detection method according to claim 3, wherein the method further comprises: Acquiring the serial numbers of the vehicle-mounted labels through the ground base station; And obtaining the ID information of the train according to the number, and obtaining the driving direction of the train according to the number and the occupation information of the track section.
6. A track segment occupancy detection method according to claim 3, wherein the method further comprises: Sending a second positioning request through the ground base station, receiving second response information of other ground base stations for the second positioning request, and obtaining second relative distances between the ground base station and other ground base stations according to the second response information; Acquiring a second installation distance between the ground base station and other ground base stations; judging whether the second relative distance is consistent with the corresponding second installation distance; if the base stations are inconsistent, sending out alarm information so as to prompt the ground base stations to be abnormal.
7. A computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the track segment occupancy detection method of any one of claims 3-6.

Description

Track segment occupancy detection method, system and storage medium Technical Field The present invention relates to the field of rail traffic control, and in particular, to a method and system for detecting occupation of a track section, and a storage medium. Background In the related art, the detection mode generally adopted for detecting the section occupation of the track traffic signal system is axle counting and track circuit. The axle counting equipment uses the application mode of the cutting magnetic sensor, and requires that an axle counting sensing blade and an axle counting magnetic head cannot be far apart, so that when the swing amplitude of a vehicle is overlarge, axle counting is easy to miss, and the section is misjudged to occupy. The axle counting occupancy detection depends on historical axle counting information, and when the axle counting is used, a single magnetic head is easy to be interfered and misjudged to be occupied. The rail circuit detection mode is easy to generate poor branching for the steel wheel rail, so that the guide safety side is not provided with a stable and good metering shaft. For rubber-tired trains, the short-circuit effect cannot be formed by using metal, so that the rubber-tired trains cannot be directly used. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, a first object of the present invention is to propose a track section occupancy detection system for detecting track section occupancy. A second object of the present invention is to propose a track segment occupancy detection method. A third object of the present invention is to propose a computer readable storage medium. In order to achieve the aim, an embodiment of the first aspect of the invention provides a track section occupation detection system, which comprises vehicle-mounted equipment, ground equipment and a ground calculation unit, wherein the vehicle-mounted equipment comprises at least two vehicle-mounted labels arranged on a train, the ground equipment comprises a ground calculation unit and a plurality of ground base stations, the ground base stations are arranged along a track to be detected, the ground calculation unit is respectively connected with the ground base stations, the ground base stations are used for initiating first positioning requests, the vehicle-mounted labels are used for sending first response information according to the first positioning requests, the ground base stations are also used for receiving the first response information, a first relative distance between the ground base stations and the vehicle-mounted labels is obtained according to the first response information, and the ground calculation unit is used for obtaining occupation information of a track section according to the first relative distance between each ground base station and each vehicle-mounted label. In order to achieve the above purpose, a second embodiment of the present invention provides a method for detecting occupation of a track section, which includes initiating a first positioning request according to a base station number sequence in a same scanning period by a plurality of ground base stations, receiving first response information of each vehicle-mounted tag for the corresponding first positioning request by each ground base station, obtaining a first relative distance between each ground base station and each vehicle-mounted tag according to the first response information, and obtaining occupation information of the track section according to the first relative distance. To achieve the above object, an embodiment of a third aspect of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the track segment occupancy detection method described above. According to the track section occupation detection method, the track section occupation detection system and the storage medium, at least two vehicle-mounted labels are installed on a train, the ground resolving unit and the ground base stations are arranged on the ground, the ground base stations are installed and arranged along the track to be preceded, so that the ground base stations can initiate first positioning requests and receive first response information of each vehicle-mounted label for the corresponding first positioning requests, further, first relative distances between the ground base stations and the vehicle-mounted labels are obtained according to the first response information, and occupation information of the track section is obtained according to the first relative distances. Thereby, detection of occupancy of the track section may be achieved. The invention discloses a technical scheme which does not require that the ground base station and the vehicle-mounted tag cannot be far apart, is more flexible to install, and does