A marshalling train end screening method, device, equipment and storage medium

Abstract

The application discloses a marshalling train end screening method, device and equipment and a storage medium, relates to the field of rail transit technology, and comprises the following steps: when a marshalling train does not meet end screening conditions, obtaining marshalling plan information of the marshalling train; when a head idle instruction is received, screening a head end of the marshalling train based on the marshalling plan information, and completing head end screening of the marshalling train; and when a tail idle instruction is received, screening a tail end of the marshalling train based on the marshalling plan information, and completing tail end screening of the marshalling train. Through the application, once a train in marshalling cannot meet set end screening conditions due to some scenes, a group control device cannot complete end screening of a marshalling train, and a technical problem that train marshalling cannot be completed is solved.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and in particular to a method, apparatus, equipment and storage medium for screening the ends of train sets. Background Technology

[0002] Train screening is a prerequisite for the ground-based RBC (Radio Block Center) system to calculate train clearances for trains to be upgraded. Through train screening, the RBC system confirms whether there are any hidden trains in front of or behind the train to be upgraded, ensuring the safe operation of the train. Therefore, completing train screening is particularly important and is a prerequisite for the RBC system to calculate train clearances.

[0003] Currently, during train formation, end-point screening conditions are set to screen the trains at the ends. However, this method has limitations. If a train in the formation fails to meet these conditions due to certain circumstances, the group control equipment cannot complete the end-point screening function, thus preventing the calculation of movement authorizations and ultimately hindering the train formation process. Therefore, a new end-point screening technology for train formation is urgently needed. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a method, apparatus, device, and storage medium for screening the ends of train formations.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] In a first aspect, embodiments of the present invention provide a method for screening the ends of a train formation, the method comprising:

[0007] When the train does not meet the end screening criteria, obtain the train formation plan information;

[0008] When a head-end vacancy instruction is received, the head end of the train is screened based on the train formation plan information to complete the head-end screening of the train formation.

[0009] When a tail end clearance instruction is received, the tail end of the train is screened based on the train formation plan information to complete the tail end screening of the train formation.

[0010] Optionally, the train formation plan information includes the train number, train sequence, and train location.

[0011] Optionally, the step of screening the head of the train based on the train formation plan information to complete the head screening of the train formation includes:

[0012] The N trains in the train formation are matched with the formation plan information to obtain N matching results;

[0013] If all N matching results are successful, the selection of the head of the train formation is complete.

[0014] Optionally, the step of matching each of the N trains in the train formation with the formation plan information to obtain N matching results includes:

[0015] For the i-th train in a train formation, check whether the number of the i-th train is in the formation plan information, where 1≤i≤N;

[0016] Check whether the train numbers before and after the i-th train are the same as the numbers in the train formation plan information;

[0017] Check whether the actual position of the i-th train is the same as the position of the i-th train in the formation plan information;

[0018] If the number of the i-th train is in the formation plan information, and the numbers are the same and the positions are the same, then the matching result between the i-th train and the formation plan information is a successful match.

[0019] This process continues until N matching results are obtained.

[0020] Optionally, after screening the head of the train based on the train formation plan information and completing the head screening of the train formation, the process includes:

[0021] Check whether each train in the train formation meets the prerequisites for granting a train operation permit;

[0022] If the conditions are met, then the travel permit for each train is determined.

[0023] Optionally, checking whether each train in the train formation meets the prerequisites for determining a train operation permit includes:

[0024] Check the integrity, control mode, and head-end screening status of each train in the train formation;

[0025] Check the track section locking status, train route status, and signal status;

[0026] If the integrity of each train in the train formation is complete, the control mode is fully monitored, the head end screening status is completed, the section locking status is locked, the route status is train route, and the signal status is permitted signal, then the inspection result is that each train in the train formation meets the prerequisites for determining the train operation permission.

[0027] Optionally, determining the travel permission for each train includes:

[0028] For the first train in a train formation, the travel permit is determined to be from the rear of the first train to the destination.

[0029] For the i′-th train in the train formation, check the tail screening status of the i′-1-th train, where 2≤i′≤N;

[0030] If the tail end screening status of train i′-1 is completed, then the driving permission of train i′ is determined to be from the tail end of train i′ to the tail end of train i′-1, where train i′-1 is the train preceding train i′.

[0031] If the tail end screening status of the i′-1 train is incomplete, then the driving permission of the i′ train is determined to be from the tail end of the i′ train to a preset point, wherein the preset point is spaced at a preset distance from the tail end of the i′-1 train.

[0032] Secondly, embodiments of the present invention provide a sorting device for the end of a train marshalling yard, the device comprising:

[0033] The acquisition module is configured to acquire the train formation plan information when the train does not meet the end screening conditions.

[0034] The filtering module is configured to, when a head-end idle instruction is received, filter the head end of the train based on the train formation plan information to complete the head-end filtering of the train formation; and when a tail-end idle instruction is received, filter the tail end of the train based on the train formation plan information to complete the tail-end filtering of the train formation.

[0035] Thirdly, embodiments of the present invention also provide an electronic device, including: a memory and a processor; the processor is configured to read and execute a computer program stored in the memory to implement the steps of the aforementioned method for screening the end of a train formation.

[0036] Fourthly, embodiments of the present invention also provide a computer storage medium storing computer-executable instructions, which, when executed, implement the steps of the aforementioned method for screening the ends of a train marshalling yard.

[0037] The beneficial effects of the technical solutions provided by the embodiments of the present invention include:

[0038] When a train formation does not meet the end-point screening conditions, the train formation plan information is obtained. When a head-point idle command is received, the head-point of the train is screened based on the formation plan information, completing the head-point screening. When a tail-point idle command is received, the tail-point of the train is screened based on the formation plan information, completing the tail-point screening. This invention solves the technical problem in related technologies where, if trains in a formation cannot meet the set end-point screening conditions due to certain scenarios, the group control equipment cannot perform end-point screening for the train formation, thus preventing the completion of the train formation function. Attached Figure Description

[0039] 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.

[0040] Figure 1 This is a flowchart illustrating the first embodiment of the train end screening method of the present invention;

[0041] Figure 2 This is a schematic diagram of a train formation on a track according to an embodiment of the present invention;

[0042] Figure 3 This is a schematic diagram of the head-end screening state of a train in an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the screening process at the head of a train according to an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the tail-end screening process of a train according to an embodiment of the present invention;

[0045] Figure 6 This is a flowchart illustrating the second embodiment of the train end screening method of the present invention;

[0046] Figure 7 This is a flowchart illustrating the first embodiment of the train operation permitting method of the present invention;

[0047] Figure 8 This is a flowchart illustrating the second embodiment of the train operation permitting method of the present invention;

[0048] Figure 9 This is a functional module diagram of an embodiment of the train end screening device of the present invention;

[0049] Figure 10 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0050] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0052] In a first aspect, embodiments of the present invention provide a method for screening the ends of a train formation.

[0053] In one embodiment, reference is made to Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the train end-screening method of the present invention. Figure 1 As shown, the selection method for the ends of train formations includes:

[0054] Step S10: When the train does not meet the end screening conditions, obtain the train formation plan information.

[0055] In this embodiment, taking a train consisting of two cars, namely train 1 and train 2, as an example, refer to... Figure 2 , Figure 2 This is a schematic diagram of a train formation on a track according to an embodiment of the present invention. Figure 2 As shown, there are multiple signals (X5L signal, S5L signal, X5 signal, X3 signal, X7 signal) at the turnout on the track. Train 1 is the train preceding Train 2. (Refer to...) Figure 4 , Figure 4 This is a schematic diagram of the selection process at the head of a train in accordance with an embodiment of the present invention. Figure 4 As shown, after trains 1 and 2 are powered on, they stop on the track to perform the marshalling operation according to the marshalling plan. The trains are positioned using Beidou positioning and fuzzy positioning methods, and the train position information is sent to the group control equipment. The group control equipment checks whether trains 1 and 2 meet the end screening conditions based on the train position information, the section, turnout, signal and route status reported by the computer interlocking, and the marshalling plan information of trains 1 and 2 sent by the CTC (Centralized Traffic Control) system.

[0056] The end-point screening criteria include head-end screening criteria and tail-end screening criteria. Head-end screening criteria include: normal communication between the train and the group control equipment; the train wheelset and the maximum safe leading edge are in the same section; the train sends train registration and location messages; no non-communication cars occupy the section ahead of the train; the turnouts within the train's body are correctly locked and in the locked state; the distance from the head-end to the section boundary is less than the minimum train length on the line; and the protection direction of the signal ahead of the train in the section is consistent with the train's direction of travel.

[0057] The tail end screening criteria include: the distance from the tail end to the section boundary is less than the minimum train length in the line; the interlocking reports that the adjacent section after the train is in an idle state; and the protection direction of the signal behind the train is consistent with the train's running direction.

[0058] When a train formation does not meet the head-end screening criteria and / or tail-end screening criteria, the train formation plan information is obtained. This information is used to complete the head-end screening or tail-end screening of the train formation upon receiving a head-end or tail-end vacancy instruction. The formation plan information includes the train number, train sequence, and train location.

[0059] Step S20: When a head-end idle instruction is received, the head end of the train is screened based on the train formation plan information to complete the head-end screening of the train formation.

[0060] In some specific embodiments, step S20 includes:

[0061] Step S201: Match the N trains in the train formation with the formation plan information to obtain N matching results;

[0062] In some specific embodiments, step S201 includes:

[0063] For the i-th train in a train formation, check whether the number of the i-th train is in the formation plan information, where 1≤i≤N;

[0064] Check whether the train numbers before and after the i-th train are the same as the numbers in the train formation plan information;

[0065] Check whether the actual position of the i-th train is the same as the position of the i-th train in the formation plan information;

[0066] If the number of the i-th train is in the formation plan information, and the numbers are the same and the positions are the same, then the matching result between the i-th train and the formation plan information is a successful match.

[0067] This process continues until N matching results are obtained.

[0068] In this embodiment, we continue to refer to... Figure 4 After confirming that the train formation does not meet the head-end screening criteria, station staff on the tracks check whether there are any hidden cars within the boundary area from the front of the train head to the section where the head is located. The staff then relays the confirmation information to the station duty officer. If the confirmation information indicates that there are no hidden cars, the CTC sends the head-end vacancy instruction issued by the station duty officer to the group control equipment. The group control equipment then screens the head end of the train formation based on the formation plan information, completing the head-end screening of the train formation.

[0069] The group control equipment filters the head of the trains based on the formation plan information. Specifically, for the first train in the formation, it checks whether the number of the first train is in the formation plan information; since the first train has no preceding train, it checks whether the number of the train following the first train is the same as the number in the formation plan information; and it checks whether the actual position of the first train is the same as the position of the first train in the formation plan information.

[0070] If the number of the first train is in the formation plan information, and the number of the train following the first train is the same as the number in the formation plan information, and the actual position of the first train is the same as the position of the first train in the formation plan information, then the matching result between the first train and the formation plan information is a successful match.

[0071] By following this method, the matching results for each train in the train formation can be obtained.

[0072] Step S202: If all N matching results are successful, the screening of the head end of the train formation is completed.

[0073] In this embodiment, if the matching result for each train in the train formation is successful, the head-end screening of the train formation is completed. After the head-end screening of the train formation is completed, the group control equipment sends a head-end screening completion signal to the CTC, and the CTC controls the indicator at the head of the train to turn green, indicating that the head-end screening of the train formation is complete. Figure 3 As shown.

[0074] If any of the N matching results is a failed match, then the screening at the head of the train formation is determined to have failed.

[0075] Step S30: When the tail end is cleared, the tail end of the train is screened based on the train formation plan information to complete the tail end screening of the train formation.

[0076] In this embodiment, refer to Figure 5 , Figure 5 This is a schematic diagram of the tail-end screening process of a train according to an embodiment of the present invention. Figure 5As shown, when the CTC receives a message indicating that the tail-end screening is incomplete, it checks with station staff to see if there is a hidden car between the tail of train 1 and the head of train 2 on the track where the train is located, and then relays this confirmation to the station duty officer. If the confirmation indicates that there is no hidden car, the CTC sends the tail-end clearance instruction issued by the station duty officer to the group control equipment. The group control equipment then performs tail-end screening based on the train formation plan information, completing the tail-end screening of the train.

[0077] The group control equipment filters the tail end of the trains based on the formation plan information. Specifically, for the first train in the formation, it checks whether the number of the first train is in the formation plan information; since the first train has no preceding train, it checks whether the number of the train following the first train is the same as the number in the formation plan information; and it checks whether the actual position of the first train is the same as the position of the first train in the formation plan information.

[0078] If the number of the first train is in the formation plan information, and the number of the train following the first train is the same as the number in the formation plan information, and the actual position of the first train is the same as the position of the first train in the formation plan information, then the matching result between the first train and the formation plan information is a successful match.

[0079] By following this method, the matching results for each train in the train formation can be obtained.

[0080] If the matching result for each train in the train formation is successful, the tail-end screening of the train formation is complete. After the tail-end screening of the train formation is completed, the group control equipment sends a tail-end screening completion signal to the CTC, and the CTC controls the indicator at the tail of the train to turn green, such as... Figure 8 As shown.

[0081] It should be noted that when a train formation does not meet the end-of-train screening criteria but receives a tail-of-train idle command, the tail end of the train formation can be screened either before or after the head end screening is completed. Completion of head end screening can occur when the train meets the head end screening criteria, or when the train does not meet the criteria but receives a head-of-train idle command, screening is performed on the head end based on the train formation plan information.

[0082] In this embodiment, when the train formation does not meet the end-point screening conditions, the train formation plan information is obtained. When a head-point idle command is received, the head-point of the train formation is screened based on the formation plan information, completing the head-point screening. When a tail-point idle command is received, the tail-point of the train formation is screened based on the formation plan information, completing the tail-point screening. Through this embodiment, even if the train formation does not meet the end-point screening conditions, the head-point and tail-point screening of the train formation can still be completed based on the formation plan information and the end-point idle command. This solves the technical problem in related technologies where, if trains in the formation cannot meet the set end-point screening conditions due to certain scenarios, the group control equipment cannot perform end-point screening for the train formation, resulting in the inability to complete the train formation function.

[0083] Optionally, in one embodiment, reference is made to Figure 6 , Figure 6 This is a flowchart illustrating the second embodiment of the train end-screening method of the present invention. Figure 6 As shown, after step S20, the following steps are included:

[0084] Step S40: Check whether each train in the train formation meets the prerequisites for determining the train operation permission;

[0085] In this embodiment, the integrity, control mode, and head-end screening status of each train in the train formation are checked; the section locking status, train route status, and signal status on the track are checked; if the integrity of each train in the train formation is complete, the control mode is fully monitored, the head-end screening status is completed, the section locking status is locked, the route status is a train route, and the signal status is a permitted signal, then the check result is that each train in the train formation meets the prerequisites for determining the train operation permission.

[0086] Step S50: If the conditions are met, determine the travel permit for each train.

[0087] In some specific embodiments, step S50 includes:

[0088] For the first train in a train formation, the travel permit is determined to be from the rear of the first train to the destination.

[0089] For the i′-th train in the train formation, check the tail screening status of the i′-1-th train, where 2≤i′≤N;

[0090] If the tail end screening status of train i′-1 is completed, then the driving permission of train i′ is determined to be from the tail end of train i′ to the tail end of train i′-1, where train i′-1 is the train preceding train i′.

[0091] If the tail end screening status of the i′-1 train is incomplete, then the driving permission of the i′ train is determined to be from the tail end of the i′ train to a preset point, wherein the preset point is spaced at a preset distance from the tail end of the i′-1 train.

[0092] In this embodiment, we continue to refer to... Figure 4 or Figure 5 After the selection at the head of the train formation is completed and each train in the formation meets the prerequisites for determining the travel permit, the travel permit for each train also needs to be determined. Specifically, for the first train in the formation (train 1), the determined travel permit is from the tail of the first train to the destination.

[0093] For the second train in the train set (train 2), check the screening status at the end of the first train.

[0094] Reference Figure 7 , Figure 7 This is a schematic flowchart of the first embodiment of the train operation permitting of the present invention. Figure 7 As shown, if the tail end screening status of the first train is incomplete, then the driving permission for the second train is determined to be from the tail end of the second train to a preset point, wherein the preset point is spaced at a preset distance from the tail end of the first train.

[0095] Reference Figure 8 , Figure 8 This is a schematic flowchart of the second embodiment of the train operation permitting method of the present invention. Figure 8 As shown, if the tail end screening status of the train is "tail end screening complete", then the driving permission for the second train is determined to be from the tail end of the second train to the tail end of the first train. Here, the first train is the train preceding the second train.

[0096] Once the travel permit for each train is determined, the train 1 and train 2 can be grouped together. This solves the technical problem in the prior art where the group control equipment could not complete the screening of the train heads, thus failing to confirm the travel permit for the trains and consequently failing to complete the train grouping function.

[0097] It is easy to understand that train 1 and train 2 in a train set are just examples and are not limited here. The number of trains in a train set can also be other values.

[0098] Secondly, embodiments of the present invention also provide a sorting device for the end of a train formation.

[0099] In one embodiment, reference is made to Figure 9 , Figure 9 This is a functional module diagram of an embodiment of the train end screening device of the present invention. Figure 9As shown, the sorting device at the end of the train formation includes:

[0100] The acquisition module 10 is configured to acquire the train formation plan information when the train does not meet the end screening conditions.

[0101] The filtering module 20 is configured to filter the head end of the train based on the train formation plan information when a head end idle instruction is received, and to complete the head end filtering of the train formation when a tail end idle instruction is received.

[0102] Optionally, in one embodiment, the train formation planning information includes the train number, train sequence, and train location.

[0103] Optionally, in one embodiment, the filtering module 20 is specifically configured to:

[0104] The N trains in the train formation are matched with the formation plan information to obtain N matching results;

[0105] If all N matching results are successful, the selection of the head of the train formation is complete.

[0106] Optionally, in one embodiment, the filtering module 20 is specifically configured to:

[0107] For the i-th train in a train formation, check whether the number of the i-th train is in the formation plan information, where 1≤i≤N;

[0108] Check whether the train numbers before and after the i-th train are the same as the numbers in the train formation plan information;

[0109] Check whether the actual position of the i-th train is the same as the position of the i-th train in the formation plan information;

[0110] If the number of the i-th train is in the formation plan information, and the numbers are the same and the positions are the same, then the matching result between the i-th train and the formation plan information is a successful match.

[0111] This process continues until N matching results are obtained.

[0112] Optionally, in one embodiment, the train end screening device further includes a train operation permit determination module, configured to:

[0113] Check whether each train in the train formation meets the prerequisites for granting a train operation permit;

[0114] If the conditions are met, then the travel permit for each train is determined.

[0115] Optionally, in one embodiment, the driving permission determination module is specifically configured to:

[0116] Check the integrity, control mode, and head-end screening status of each train in the train formation;

[0117] Check the track section locking status, train route status, and signal status;

[0118] If the integrity of each train in the train formation is complete, the control mode is fully monitored, the head end screening status is completed, the section locking status is locked, the route status is train route, and the signal status is permitted signal, then the inspection result is that each train in the train formation meets the prerequisites for determining the train operation permission.

[0119] Optionally, in one embodiment, the driving permission determination module is specifically configured to:

[0120] For the first train in a train formation, the travel permit is determined to be from the rear of the first train to the destination.

[0121] For the i′-th train in the train formation, check the tail screening status of the i′-1-th train, where 2≤i′≤N;

[0122] If the tail end screening status of train i′-1 is completed, then the driving permission of train i′ is determined to be from the tail end of train i′ to the tail end of train i′-1, where train i′-1 is the train preceding train i′.

[0123] If the tail end screening status of the i′-1 train is incomplete, then the driving permission of the i′ train is determined to be from the tail end of the i′ train to a preset point, wherein the preset point is spaced at a preset distance from the tail end of the i′-1 train.

[0124] The functions of each module in the above-mentioned train end screening device correspond to the steps in the above-mentioned train end screening method embodiment, and their functions and implementation processes will not be described in detail here.

[0125] Thirdly, embodiments of the present invention also provide an electronic device, the structure of which is as follows: Figure 10 As shown, it includes: a memory and a processor, wherein the processor is used to read and execute the computer program stored in the memory to implement the aforementioned method for screening the end of a train formation.

[0126] Fourthly, embodiments of the present invention also provide a computer storage medium storing computer-executable instructions, which, when executed, implement the aforementioned method for screening the ends of a train formation.

[0127] Fifthly, embodiments of the present invention provide a computer program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described train end-screening method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0128] Finally, it should be noted that while some processes described in the embodiments of the present invention include multiple operations or steps that appear in a specific order, it should be understood that these operations or steps may not be executed in the order they appear in the embodiments of the present invention, or may be executed in parallel. The sequence number of the operation is only used to distinguish different operations, and the sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations or steps may be executed sequentially or in parallel, and these operations or steps may be combined.

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for screening the ends of a train, characterized in that, The method includes: When a train does not meet the end selection criteria, the train formation plan information is obtained; the train formation plan information includes the train number, train sequence, and train location. When a head-end vacancy instruction is received, the N trains in the train formation are matched with the formation plan information to obtain N matching results; if all N matching results are successful, the head-end screening of the train formation is completed. The process involves matching each of the N trains in the train formation with the formation plan information to obtain N matching results, including: For the i-th train in a train formation, check whether the number of the i-th train is in the formation plan information. ; Check if the numbers of the trains before and after the i-th train are the same as the numbers in the formation plan information; Check if the actual position of the i-th train is the same as the position of the i-th train in the formation plan information; If the number of the i-th train is in the formation plan information, and the numbers are the same, and the positions are the same, then the matching result of the i-th train and the formation plan information is a successful match; and so on, to obtain N matching results. When a tail end clearance instruction is received, the tail end of the train is screened based on the train formation plan information to complete the tail end screening of the train formation.

2. The method for screening the ends of a train formation according to claim 1, characterized in that, After the head end of the train is screened based on the train formation plan information, the process includes: Check whether each train in the train formation meets the prerequisites for granting a train operation permit; If the conditions are met, then the travel permit for each train is determined.

3. The method for screening the ends of a train formation according to claim 2, characterized in that, The inspection process, which checks whether each train in the train formation meets the prerequisites for granting a train operating permit, includes: Check the integrity, control mode, and head-end screening status of each train in the train formation; Check the track section locking status, train route status, and signal status; If the integrity of each train in the train formation is complete, the control mode is fully monitored, the head end screening status is completed, the section locking status is locked, the route status is train route, and the signal status is permitted signal, then the inspection result is that each train in the train formation meets the prerequisites for determining the train operation permission.

4. The method for screening the ends of a train formation according to claim 2, characterized in that, The determination of the operating permit for each train includes: For the first train in a train formation, the travel permit is determined to be from the rear of the first train to the destination. For the first in the train formation Train, inspect the first -1. The screening status at the rear of the train, of which 2 ; If the first If the tail screening status of train -1 is "tail screening complete", then determine the th train. The train's operating permit is from the 1st The end of the train to the first -1 at the rear of the train, of which, the first -1 train is the first The train preceding the previous train; If the first If the tail screening status of train -1 is "incomplete tail screening", then determine the th train. The train's operating permit is from the 1st The rear of the train reaches a predetermined point, wherein the predetermined point is the same as the first... -1. The distance between the tail ends of the trains is preset.

5. A sorting device for the end of a train marshalling yard, characterized in that, The device includes: The acquisition module is configured to acquire the train formation plan information when the train formation does not meet the end screening conditions; the train formation plan information includes the train number, train formation sequence, and train location. The filtering module is configured to match the N trains in the train formation with the formation plan information when a head idle instruction is received, and obtain N matching results; if all N matching results are successful, the head end filtering of the train formation is completed. The process involves matching each of the N trains in the train formation with the formation plan information to obtain N matching results, including: For the i-th train in a train formation, check whether the number of the i-th train is in the formation plan information. The process involves: checking whether the train numbers preceding and following the i-th train are the same as those in the train formation plan information; checking whether the actual position of the i-th train is the same as the position of the i-th train in the train formation plan information; if the number of the i-th train is in the train formation plan information, and the numbers and positions are the same, then the matching result between the i-th train and the train formation plan information is considered a successful match; and so on, to obtain N matching results; when a tail-end idle instruction is received, the tail end of the train formation is filtered based on the train formation plan information to complete the tail-end filtering of the train formation.

6. An electronic device, characterized in that, include: Memory and processor; The processor is configured to read and execute the computer program stored in the memory to implement the steps of the train end-screening method as described in any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed, implement the steps of the train end-screening method as described in any one of claims 1-4.

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