A method, device and equipment for detecting position of a track train in a turnout area, and a storage medium

Abstract

The application provides a method, device and equipment for detecting the position of a track in a turnout area and a storage medium, which comprises the following steps: dividing a first straight turnout, a second straight turnout and a lateral turnout to obtain a first track in a turnout area and a second track in a turnout area; the first track in a turnout area comprises the first straight turnout and the lateral turnout, and the second track in a turnout area comprises the second straight turnout and the lateral turnout; determining the first straight measurement area state of the first straight turnout, the second straight measurement area state of the second straight turnout and the lateral measurement area state of the lateral turnout based on a grating array sensing optical cable; when the first straight measurement area state or the lateral measurement area state is an occupied state, the first track state of the first track in a turnout area is an occupied state; and when the second straight measurement area state or the lateral measurement area state is an occupied state, the second track state of the second track in a turnout area is an occupied state. The application divides the jurisdiction range of the track in a turnout area, and can improve the accuracy and reliability of train positioning.

Description

Technical Field

[0001] This invention relates to the field of rail transit signal processing technology, specifically to a method, device, equipment, and storage medium for detecting the position of a train in a turnout area. Background Technology

[0002] In the urban rail transit train operation control system, when the on-board signaling equipment malfunctions and loses communication with the ground signaling equipment, the ground signaling equipment relies on axle counting equipment to detect the train's position.

[0003] The axle counting equipment detects the train's position on the turnout track by densely deploying axle counting devices. However, because the axle counting equipment is susceptible to electromagnetic interference, it can malfunction and become occupied. When a train enters the turnout track, the axle counting equipment assumes the entire axle counting section is occupied, making it impossible to detect the train's position.

[0004] There is an urgent need to provide a method, device, equipment, and storage medium for detecting the position of trains in turnout areas to solve the above-mentioned technical problems. Summary of the Invention

[0005] In view of this, it is necessary to provide a method, device, equipment and storage medium for detecting the position of a train in a turnout section track, so as to solve the technical problem that the position of a train in a turnout section track cannot be located by axle counting equipment in the prior art.

[0006] On one hand, the present invention provides a method for detecting the position of a train on a turnout track, wherein the turnout track includes a first straight turnout, a second straight turnout, and a lateral turnout connecting the first straight turnout and the second straight turnout; the method for detecting the position of a train on a turnout track includes:

[0007] The first straight turnout, the second straight turnout, and the lateral turnout are divided to obtain a first turnout track and a second turnout track; the first turnout track includes the first straight turnout and the lateral turnout, and the second turnout track includes the second straight turnout and the lateral turnout;

[0008] The first linear measurement zone status of the first linear branch, the second linear measurement zone status of the second linear branch, and the lateral measurement zone status of the lateral branch are determined based on the laid grating array sensing optical cable.

[0009] When the first straight measurement area state or the lateral measurement area state is occupied, the first track state of the first branch area track is occupied.

[0010] When the second straight measurement area state or the lateral measurement area state is occupied, the second track state of the second branch area track is occupied.

[0011] In some possible implementations, the first straight turnout includes a first turnout front track and a first turnout rear track, and the first straight measurement area state includes a first turnout front measurement area state and a first turnout rear measurement area state; then, determining the first straight measurement area state of the first straight turnout based on the laid grating array sensing optical cable includes:

[0012] The state of the first forward measuring area and the state of the first backward measuring area are determined based on the laid grating array sensing optical cable.

[0013] When the first forward test area or the first backward test area is occupied, the first straight test area is occupied.

[0014] In some possible implementations, the second straight turnout includes a second turnout preceding a second turnout and a second turnout following a second turnout, and the second straight measurement area state includes a second turnout preceding a second turnout measurement area state and a second turnout following a second turnout measurement area state; then, determining the second straight measurement area state of the second straight turnout based on the laid grating array sensing optical cable includes:

[0015] The state of the second fork front measurement area and the state of the second fork rear measurement area are determined based on the laid grating array sensing optical cable.

[0016] When the second forward survey area is occupied or the second backward survey area is occupied, the second straight survey area is occupied.

[0017] In some possible implementations, the train position detection method in the turnout section further includes:

[0018] Determine the first exit track connected to the first straight branch and the second exit track connected to the second straight branch;

[0019] The state of the first exit measurement area of ​​the first exit track and the state of the second exit measurement area of ​​the second exit track are determined based on the grating array sensing optical cable.

[0020] Determine whether the train has left the first branch area track based on the status of the first exit survey area and the status of the first track.

[0021] Determine whether the train has left the second branch area track based on the status of the second exit survey area and the status of the second track.

[0022] In some possible implementations, the first exit track includes multiple exit survey areas, and the state of the first exit survey area includes multiple first sub-exit survey area states corresponding one-to-one with the multiple exit survey areas; determining whether the train has left the first branch track based on the state of the first exit survey area and the state of the first track includes:

[0023] Determine the number of target exit measurement areas in the continuously occupied state among the multiple first sub-exit measurement area states;

[0024] When the number of target exit test areas is greater than or equal to a preset number, and the first track is in an idle state, the train departs from the first branch track.

[0025] In some possible implementations, before determining the number of target exit survey areas in a continuously occupied state among the plurality of first sub-exit survey area states, the method further includes:

[0026] Obtain the length of the train and the distance between two adjacent exit measurement areas;

[0027] The preset quantity is determined based on the vehicle length and the distance between the measurement areas.

[0028] In some possible implementations, the grating array sensing optical cable is fixed to the sidewall of the fork section track.

[0029] On the other hand, the present invention also provides a train position detection device for a turnout track, wherein the turnout track includes a first straight turnout, a second straight turnout, and a lateral turnout connecting the first straight turnout and the second straight turnout; the train position detection device for the turnout track includes:

[0030] A branch line division unit is used to divide the first straight branch line, the second straight branch line, and the lateral branch line to obtain a first branch line track and a second branch line track; the first branch line track includes the first straight branch line and the lateral branch line, and the second branch line track includes the second straight branch line and the lateral branch line;

[0031] The measurement area status determination unit is used to determine the first straight measurement area status of the first straight branch, the second straight measurement area status of the second straight branch, and the lateral measurement area status of the lateral branch based on the laid grating array sensing optical cable.

[0032] The first occupancy status determination unit is used to determine that the first track status of the first branch area track is occupied when the first straight measurement area status or the lateral measurement area status is occupied.

[0033] The second occupancy status determination unit is used to determine that the second track status of the second branch area track is occupied when the second straight measurement area status or the lateral measurement area status is occupied.

[0034] On the other hand, the present invention also provides a train positioning device, including a memory and a processor, wherein,

[0035] The memory is used to store programs;

[0036] The processor, coupled to the memory, is used to execute the program stored in the memory to implement the steps in the turnout track train position detection method described in any of the above possible implementations.

[0037] On the other hand, the present invention also provides a computer-readable storage medium storing a program or instructions that, when executed by a processor, implement the steps in the turnout track train position detection method described in any of the above possible implementations.

[0038] The beneficial effects of the above embodiments are: the train position detection method in the turnout track provided by the present invention can realize the train position detection in the turnout track based on the laid grating array sensing optical cable because the grating array sensing optical cable is minimally affected by electromagnetic interference.

[0039] Furthermore, since the distances between the first straight turnout, the second straight turnout, and the lateral turnout are relatively short, the grating array sensing optical cable cannot accurately distinguish whether the train is traveling on the first straight turnout or the lateral turnout, nor can it distinguish whether the train is traveling on the second straight turnout or the lateral turnout. This invention, by using the first straight turnout and the lateral turnout as the first turnout zone track and the second straight turnout and the lateral turnout as the second turnout zone track, realizes the division of the jurisdiction of the turnout zone track, which can improve the reliability of the determined train position on the turnout zone track. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A schematic diagram of an embodiment of the branch section track provided by the present invention;

[0042] Figure 2 A schematic flowchart of an embodiment of the train position detection method in the turnout section provided by the present invention;

[0043] Figure 3 A schematic flowchart illustrating an embodiment of the present invention for determining whether a train has left the turnout track.

[0044] Figure 4 For the present invention Figure 3 A schematic diagram of an embodiment of S303;

[0045] Figure 5 A schematic diagram of an embodiment of the present invention for determining a preset quantity;

[0046] Figure 6 A schematic diagram of an embodiment of the train position detection device in the branch area provided by the present invention;

[0047] Figure 7 This is a schematic diagram of an embodiment of the train positioning device provided by the present invention. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0049] It should be understood that the illustrative drawings are not drawn to scale. The flowcharts used in this invention illustrate operations implemented according to some embodiments of the invention. It should be understood that the operations in the flowcharts may be implemented out of order, and steps without logical contextual relationships may be reversed or performed simultaneously. Furthermore, those skilled in the art, guided by the content of this invention, may add one or more other operations to the flowcharts, or remove one or more operations from the flowcharts. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities may be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor systems and / or microcontroller systems.

[0050] The terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a technical feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0051] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0052] This invention provides a method, apparatus, device, and storage medium for detecting the position of a train in a turnout area, which will be described below.

[0053] This invention provides a method for detecting the position of a train in a turnout section of track, such as... Figure 1 As shown, the branch track includes a first straight branch 10, a second straight branch 20, and a lateral branch 30 connecting the first straight branch 10 and the second straight branch 20; then as... Figure 2 As shown, the train position detection method in the turnout section includes:

[0054] S201. Divide the first straight branch 10, the second straight branch 20 and the lateral branch 30 to obtain the first branch area track and the second branch area track; the first branch area track includes the first straight branch 10 and the lateral branch 30, and the second branch area track includes the second straight branch 20 and the lateral branch 30.

[0055] S202. Based on the laid grating array sensing optical cable, determine the first straight measurement area state of the first straight branch 10, the second straight measurement area state of the second straight branch 20, and the lateral measurement area state of the lateral branch 30.

[0056] S203. When the first direct measurement area or the lateral measurement area is occupied, the first track status of the first branch area track is occupied.

[0057] S204. When the second straight measurement area or the lateral measurement area is occupied, the second track status of the second branch area track is occupied.

[0058] Compared with the prior art, the train position detection method in the turnout track provided by the embodiments of the present invention can realize the train position detection in the turnout track based on the laid grating array sensing optical cable because the grating array sensing optical cable is minimally affected by electromagnetic interference.

[0059] Furthermore, since the distances between the first straight turnout 10, the second straight turnout 20, and the lateral turnout 30 are relatively short, the grating array sensing optical cable cannot accurately distinguish whether the train is traveling on the first straight turnout 10 or the lateral turnout 30, nor can it distinguish whether the train is traveling on the second straight turnout 20 or the lateral turnout 30. This invention, by using the first straight turnout 10 and the lateral turnout 30 as the first turnout zone track and the second straight turnout 20 and the lateral turnout 30 as the second turnout zone track, realizes the division of the jurisdiction of the turnout zone track, which can improve the reliability of the determined position of the train on the turnout zone track.

[0060] It should be understood that when the first track is occupied, it means that the train is traveling on the first switch track. Similarly, when the second track is occupied, it means that the train is traveling on the second switch track, thus enabling the detection of the train's position.

[0061] It should be noted that: due to the staggered arrangement of the tracks in the branch area, it is not conducive to laying the grating array sensing optical cable along the track. In a specific embodiment of the present invention, the grating array sensing optical cable is fixed to the side wall of the branch area track so that it completely covers the branch area track.

[0062] In some embodiments of the present invention, such as Figure 1 As shown, the first straight-line branch 10 includes a first branch-before branch 11 and a first branch-after branch 12, and the first straight-line measurement area state includes the first branch-before measurement area state and the first branch-after measurement area state; then, in step S102, determining the first straight-line measurement area state of the first straight-line branch based on the laid grating array sensing optical cable includes:

[0063] The state of the measurement area before and after the first fork is determined based on the laid grating array sensing optical cable.

[0064] When the state of the test area before the first fork or the state of the test area after the first fork is occupied, the state of the first straight test area is occupied.

[0065] This invention, by setting the first straight-line measuring area to be occupied when the first forward measuring area or the first backward measuring area is occupied, eliminates the interference of the grating array signal between the first forward track 11 and the first backward track 12, and further improves the reliability of train position detection at the track position in the turnout area.

[0066] Similarly, such as Figure 1 As shown, the second straight branch 20 includes a second branch pre-branch road 21 and a second branch post-branch road 22, and the second straight measurement area state includes the second branch pre-branch measurement area state and the second branch post-branch measurement area state; then, the determination of the second straight measurement area state of the second straight branch 20 based on the laid grating array sensing optical cable in step S102 includes:

[0067] The state of the measurement area before the second fork and the state of the measurement area after the second fork are determined based on the laid grating array sensing optical cable.

[0068] When the state of the test area before the second fork or the state of the test area after the second fork is occupied, the state of the second straight test area is occupied.

[0069] Since the detection of the train's position on the switch section track focuses not only on whether the train is traveling on the switch section track, but also on whether the train has left the switch section track, therefore, in some embodiments of the present invention, such as Figure 3 As shown, the train position detection method in the turnout area also includes:

[0070] S301. Determine the first exit track connected to the first straight branch and the second exit track connected to the second straight branch.

[0071] S302. Determine the state of the first exit measurement area of ​​the first exit track and the state of the second exit measurement area of ​​the second exit track based on the grating array sensing optical cable.

[0072] S303. Determine whether the train has left the first branch area track based on the status of the first exit survey area and the status of the first track.

[0073] S304. Determine whether the train has left the second branch area track based on the status of the second exit survey area and the status of the second track.

[0074] The embodiments of the present invention can improve the comprehensiveness and completeness of train positioning on the switch sections by checking whether the train has left the first switch section track and the second switch section track.

[0075] It should be understood that the first exit track consists of two sections: one adjacent to the track before the first fork and the other adjacent to the track after the first fork. Similarly, the second exit track also consists of two sections: one adjacent to the track before the second fork and the other adjacent to the track after the second fork.

[0076] It should be noted that the principles and procedures for determining whether a train has left the first junction track and whether a train has left the second junction track are the same. The following text will use the determination of whether a train has left the first junction track as an example to illustrate the process, and will not go into detail about whether a train has left the second junction track.

[0077] In an embodiment of the present invention, the first exit track includes multiple exit measurement zones, and the state of the first exit measurement zone includes multiple first sub-exit measurement zone states corresponding one-to-one with the multiple exit measurement zones; then, as follows... Figure 4 As shown, step S303 includes:

[0078] S401. Determine the number of target exit survey areas in the state of continuous occupation among multiple first sub-exit survey areas.

[0079] S402. When the number of target exit test areas is greater than or equal to the preset number, and the first track is in an idle state, the train leaves the first branch area track.

[0080] This invention determines whether a train has left the first branch area track by considering two dimensions: the number of target exit test areas and the first track status. This ensures the accuracy and reliability of the judgment on whether a train has left the first branch area track.

[0081] It should be noted that "continuous occupancy status" refers to multiple consecutive survey areas being in an "occupancy status".

[0082] Since different train models have different lengths, to further ensure the reliability of departure judgment, in some embodiments of the present invention, such as... Figure 5 As shown, before step S402, the procedure further includes:

[0083] S501. Obtain the train length and the distance between two adjacent exit measurement areas;

[0084] S502. Determine the preset quantity based on vehicle length and measurement area spacing.

[0085] The embodiments of the present invention determine the preset quantity based on the vehicle length and the distance between the measurement areas, which can improve the matching degree between the preset quantity and the train, thereby improving the accuracy of train position detection.

[0086] In a specific embodiment of the present invention, the train is 20 meters long and the distance between the measurement areas is 5 meters, so the preset quantity is 20 / 5=4.

[0087] To better implement the train position detection method for switch section tracks in this embodiment of the invention, based on the switch section track train position detection method, this embodiment of the invention also provides a switch section track train position detection device. The switch section track includes a first straight switch, a second straight switch, and a lateral switch connecting the first straight switch and the second straight switch; such as Figure 6 As shown, the turnout track train position detection device 600 includes:

[0088] The branch line division unit 601 is used to divide the first straight branch line, the second straight branch line, and the lateral branch line to obtain the first branch line track and the second branch line track; the first branch line track includes the first straight branch line and the lateral branch line, and the second branch line track includes the second straight branch line and the lateral branch line.

[0089] The measurement area status determination unit 602 is used to determine the first straight measurement area status of the first straight branch, the second straight measurement area status of the second straight branch, and the lateral measurement area status of the lateral branch based on the laid grating array sensing optical cable.

[0090] The first occupancy status determination unit 603 is used to determine the first track status of the first branch area track as occupied when the first direct measurement area status or the lateral measurement area status is occupied.

[0091] The second occupancy status determination unit 604 is used to determine the second track status of the second branch area track as occupied when the second straight measurement area status or the lateral measurement area status is occupied.

[0092] The turnout track train position detection device 600 provided in the above embodiments can realize the technical solutions described in the above turnout track train position detection method embodiments. The specific implementation principles of each module or unit can be found in the corresponding content in the above turnout track train position detection method embodiments, which will not be repeated here.

[0093] like Figure 7As shown, the present invention also provides a train positioning device 700. The train positioning device 700 includes a processor 701, a memory 702, and a display 703. Figure 7 Only some components of the train positioning device 700 are shown, but it should be understood that it is not required to implement all of the components shown, and more or fewer components may be implemented instead.

[0094] In some embodiments, memory 702 may be an internal storage unit of the train positioning device 700, such as a hard disk or memory of the train positioning device 700. In other embodiments, memory 702 may also be an external storage device of the train positioning device 700, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the train positioning device 700.

[0095] Furthermore, the memory 702 may include both internal storage units of the train positioning device 700 and external storage devices. The memory 702 is used to store the application software and various types of data installed on the train positioning device 700.

[0096] In some embodiments, processor 701 may be a central processing unit (CPU), microprocessor, or other data processing chip, used to run program code stored in memory 702 or process data, such as the turnout track train position detection method of the present invention.

[0097] In some embodiments, display 703 may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. Display 703 is used to display information from the train positioning device 700 and to display a visual user interface. Components 701-703 of the train positioning device 700 communicate with each other via a system bus.

[0098] In some embodiments of the present invention, when the processor 701 executes the train position detection program in the switch section track in the memory 702, the following steps can be implemented:

[0099] The first straight branch, the second straight branch, and the lateral branch are divided to obtain the first branch area track and the second branch area track; the first branch area track includes the first straight branch and the lateral branch, and the second branch area track includes the second straight branch and the lateral branch;

[0100] The first linear measurement zone status of the first linear branch, the second linear measurement zone status of the second linear branch, and the lateral measurement zone status of the lateral branch are determined based on the laid grating array sensing optical cable.

[0101] When the first direct survey area or the lateral survey area is occupied, the first track status of the first branch area track is occupied.

[0102] When the second straight measurement area or the lateral measurement area is occupied, the second track status of the second branch area track is occupied.

[0103] It should be understood that when the processor 701 executes the train position detection program in the branch section track in the memory 702, in addition to the functions mentioned above, it can also perform other functions, as can be found in the description of the relevant method embodiments above.

[0104] Furthermore, this embodiment of the invention does not specifically limit the type of train positioning device 700 mentioned. The train positioning device 700 can be a portable train positioning device such as a mobile phone, tablet computer, personal digital assistant (PDA), wearable device, or laptop computer. Exemplary embodiments of portable train positioning devices include, but are not limited to, portable train positioning devices running iOS, Android, Microsoft, or other operating systems. The aforementioned portable train positioning device can also be other portable train positioning devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the invention, the train positioning device 700 may not be a portable train positioning device, but rather a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0105] Accordingly, embodiments of the present invention also provide a computer-readable storage medium for storing computer-readable programs or instructions. When the programs or instructions are executed by a processor, they can implement the steps or functions of the turnout track train position detection method provided in the above-described method embodiments.

[0106] Those skilled in the art will understand that all or part of the processes of the methods described in the above embodiments can be implemented by a computer program instructing related hardware (such as a processor, controller, etc.), and the computer program can be stored in a computer-readable storage medium. The computer-readable storage medium may be a disk, optical disk, read-only memory, or random access memory, etc.

[0107] The foregoing has provided a detailed description of the method, apparatus, equipment, and storage medium for detecting the position of a train in a turnout area. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method for detecting the position of a train in a turnout area, characterized in that, The track of the turnout area comprises a first straight turnout, a second straight turnout, and a lateral turnout connecting the first straight turnout and the second straight turnout; the track position detection method of the turnout area comprises: The first straight turnout, the second straight turnout, and the lateral turnout are divided to obtain a first turnout area track and a second turnout area track; the first turnout area track comprises the first straight turnout and the lateral turnout, and the second turnout area track comprises the second straight turnout and the lateral turnout; The first straight measurement area state of the first straight turnout, the second straight measurement area state of the second straight turnout, and the lateral measurement area state of the lateral turnout are determined based on the grating array sensing optical cable laid; When the first straight measurement area state or the lateral measurement area state is an occupied state, the first track state of the first turnout area track is an occupied state; When the second straight measurement area state or the lateral measurement area state is an occupied state, the second track state of the second turnout area track is an occupied state.

2. The turnout track train position detection method according to claim 1, characterized by, The first straight turnout comprises a first pre-turnout and a first post-turnout, and the first straight measurement area state comprises a first pre-turn measurement area state and a first post-turn measurement area state; the first straight measurement area state is determined based on the grating array sensing optical cable laid, comprising: The first pre-turn measurement area state and the first post-turn measurement area state are determined based on the grating array sensing optical cable laid; When the first pre-turn measurement area state or the first post-turn measurement area state is an occupied state, the first straight measurement area state is an occupied state.

3. The turnout track train position detection method according to claim 1, characterized by, The second straight turnout comprises a second pre-turnout and a second post-turnout, and the second straight measurement area state comprises a second pre-turn measurement area state and a second post-turn measurement area state; the second straight measurement area state is determined based on the grating array sensing optical cable laid, comprising: The second pre-turn measurement area state and the second post-turn measurement area state are determined based on the grating array sensing optical cable laid; When the second pre-turn measurement area state or the second post-turn measurement area state is an occupied state, the second straight measurement area state is an occupied state.

4. The turnout track train position detection method according to claim 1, characterized by, The track position detection method of the turnout area further comprises: A first exit track connected with the first straight turnout and a second exit track connected with the second straight turnout are determined; First exit measurement area states of the first exit track and second exit measurement area states of the second exit track are determined based on the grating array sensing optical cable; Whether a train departs from the first turnout area track is determined based on the first exit measurement area states and the first track state; Whether a train departs from the second turnout area track is determined based on the second exit measurement area states and the second track state.

5. The turnout track train position detection method according to claim 4, characterized by, The first exit track comprises a plurality of exit measurement areas, and the first exit measurement area states comprise a plurality of first sub-exit measurement area states corresponding to the plurality of exit measurement areas one by one; whether a train departs from the first turnout area track is determined based on the first exit measurement area states and the first track state, comprising: A target exit measurement area quantity of continuous occupied states in the plurality of first sub-exit measurement area states is determined; When the target number of exit measurement areas is greater than or equal to the preset number, and the first track state is an idle state, the train departs from the first turnout track.

6. The turnout track train position detection method according to claim 5, characterized by, Before the target number of exit measurement areas in the continuous occupied state is determined, the method further comprises: obtaining the length of the train and the distance between adjacent exit measurement areas; determining the preset number based on the length of the train and the distance between adjacent exit measurement areas.

7. The turnout track train position detection method according to claim 1, characterized by, The grating array sensing optical cable is fixed to the side wall of the turnout track.

8. A turnout track train position detection device characterized by comprising: a track circuit; a track switch; a track switch position detection device; and a track switch position detection device position detection device. The turnout track comprises a first straight turnout, a second straight turnout, and a lateral turnout connecting the first straight turnout and the second straight turnout; and the turnout track train position detection device comprises: a turnout division unit configured to divide the first straight turnout, the second straight turnout, and the lateral turnout to obtain a first turnout track and a second turnout track; the first turnout track comprises the first straight turnout and the lateral turnout, and the second turnout track comprises the second straight turnout and the lateral turnout; a measurement area state determination unit configured to determine a first straight measurement area state of the first straight turnout, a second straight measurement area state of the second straight turnout, and a lateral measurement area state of the lateral turnout based on the laid grating array sensing optical cable; a first occupied state determination unit configured to determine that a first track state of the first turnout track is in an occupied state when the first straight measurement area state or the lateral measurement area state is in an occupied state; a second occupied state determination unit configured to determine that a second track state of the second turnout track is in an occupied state when the second straight measurement area state or the lateral measurement area state is in an occupied state.

9. A train positioning apparatus, characterized by comprising: comprise a memory and a processor, wherein the memory is configured to store a program; the processor is coupled to the memory and is configured to execute the program stored in the memory to implement the steps of the turnout track train position detection method in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The readable storage medium has a program or instruction stored thereon, and the program or instruction is executed by a processor to implement the steps of the turnout track train position detection method in any one of claims 1 to 7.

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