Train front screen holding method and train control system
By acquiring train location information and identifying influencing factors, and flexibly implementing pre-screening checks and maintenance, the problem of low operational efficiency caused by waiting for the axle counting section to be cleared during the pre-screening process has been solved, achieving more efficient train tracking and operation management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING URBAN CONSTR INTELLIGENT CONTROL TECH CO LTD
- Filing Date
- 2024-01-30
- Publication Date
- 2026-06-12
AI Technical Summary
Existing train control technology requires waiting for the axle counting section to be cleared during the pre-train screening process, which leads to reduced operational efficiency.
By acquiring the current train's location information, influencing factors are identified, and it is determined whether to continue maintaining the pre-screening, including detecting the status of adjacent axle counting sections ahead and the operating status of communication trains, and flexibly performing pre-screening checks and maintenance.
It improved train tracking time, reduced operating intervals, and increased operational efficiency.
Smart Images
Figure CN118025271B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of rail transportation, and more specifically, to a method for maintaining a front screen of a train and a train control system. Background Technology
[0002] Communication Based Train Control (CBTC) is a continuous automatic train control system built upon active train positioning technology that does not rely on trackside train occupancy detection equipment, continuous vehicle-to-ground two-way data communication technology, and onboard and ground processors capable of performing safety functions.
[0003] Current train control technology typically screens trains during operation to eliminate any hidden trains that may be present in front of or behind the main train. This screening generally includes screening at the front and rear of the train. Existing methods for screening the front of the train only consider whether the distance between the front of the train being screened and its axle counting point is less than the minimum track length for screening, and whether the adjacent axle counting section in front of the section where the front of the train being screened is located is empty.
[0004] When a non-communication train completes its initial screening before being upgraded to a communication train, continuous checks and maintenance of the current train's screening are required. At this time, trains can enter the axle counting section ahead. If a train from behind occupies the axle counting section, and checks continue according to the initial screening conditions, the train must wait for it to clear the axle counting section. This clearing process is time-consuming, and waiting for clearing significantly impacts operational efficiency.
[0005] There is currently no effective solution to the problem that the train pre-screening process requires waiting for the axle counting section to be cleared, which leads to reduced operational efficiency. Summary of the Invention
[0006] This invention provides a method for maintaining a front screen of a train and a train control system.
[0007] According to one aspect of the embodiments of this application, a method for maintaining a train pre-screen is provided, comprising: after the current train completes the initial pre-screen, acquiring the position information of the current train; determining, based on the position information of the current train, factors affecting the current train's continued pre-screen; and determining, based on the factors, whether to continue maintaining the pre-screen.
[0008] Furthermore, the location information of the current train is obtained, including: obtaining data of all trains in the axle counting section where the current train's locomotive is located; and determining whether the current train is the first train in the axle counting section where the current train's locomotive is located based on the data of all trains.
[0009] Furthermore, the current train's location information includes at least: whether the current train is the first car in the axle counting section where the train's locomotive is located, or whether the current train is not the first car in the axle counting section where the train's locomotive is located; based on the current train's location information, factors affecting the current train's continued pre-screening are determined, including: when the current train is the first car in the axle counting section where the train's locomotive is located, the influencing factor is determined to be the state of the adjacent axle counting section ahead of the current train; when the current train is not the first car in the axle counting section where the train's locomotive is located, the influencing factor is determined to be the operating state of the first train ahead of the current train.
[0010] Furthermore, when the influencing factor is the status of the adjacent axle counting section ahead of the current train, the system determines whether to continue the forward screening based on the influencing factor, including: detecting whether the adjacent axle counting section ahead is occupied; if the adjacent axle counting section ahead is not occupied, determining to continue the forward screening; if the adjacent axle counting section ahead is occupied, obtaining the train operation status of the adjacent axle counting section ahead, and determining whether to continue the forward screening based on the train operation status.
[0011] Furthermore, the system obtains the train operation status of the adjacent axle counting section ahead and determines whether to continue the previous screening based on the train operation status. This includes: detecting whether there is a communication train in the adjacent axle counting section ahead; if there is no communication train, it is determined that the previous screening cannot continue and the initial previous screening needs to be performed again; if there is a communication train, the system further obtains the operation parameters of the communication train and determines whether to continue the previous screening based on the operation parameters of the communication train.
[0012] Furthermore, the operating parameters of the communication train are obtained, and a determination is made based on these parameters to continue the initial screening process. This includes: obtaining the relative positional relationship between the communication train and the current train, wherein the relative positional relationship includes at least two scenarios: a decreasing relative distance and an increasing relative distance. When the relative positional relationship indicates a decreasing relative distance, it is determined whether the communication train has completed the initial screening. If so, it is determined to continue the initial screening; otherwise, it is determined that the initial screening cannot continue and needs to be restarted. When the relative positional relationship indicates an increasing relative distance, it is determined whether the communication train has completed the initial screening. If so, it is determined to continue the initial screening; otherwise, it is determined that the initial screening cannot continue and needs to be restarted.
[0013] Furthermore, the relative positional relationship between the communication train and the current train is obtained, including: obtaining the running direction and front-to-back relationship between the communication train and the current train; and determining the relative positional relationship between the communication train and the current train based on the running direction and front-to-back relationship.
[0014] Furthermore, the relative positional relationship between the communication train and the current train is determined based on their operating direction and preceding / following relationship. This includes: when the communication train and the current train are operating in the same direction, the relative positional relationship is determined based on their preceding / following relationship, wherein when the communication train is in front of the current train, the relative distance between the two trains is determined to be increasing; when the communication train is behind the current train, the relative distance between the two trains is determined to be decreasing. Similarly, when the communication train and the current train are operating in opposite directions, the relative positional relationship is determined based on their preceding / following relationship, wherein when the communication train is in front of the current train, the relative distance between the two trains is determined to be decreasing; when the communication train is behind the current train, the relative distance between the two trains is determined to be increasing.
[0015] Furthermore, when the influencing factor is the operating status of the first train ahead of the current train, the decision on whether to continue the pre-screening is based on the influencing factor, including: determining whether the first train ahead of the current train has completed the pre-screening; if so, determining to continue the pre-screening; otherwise, determining that the pre-screening cannot be continued and that the initial pre-screening needs to be repeated.
[0016] According to another aspect of the embodiments of this application, a train control system is also provided, which employs the train front screen holding method as described above.
[0017] According to another aspect of the embodiments of this application, a storage medium is also provided, the storage medium including a stored program that executes the above steps when the program is run.
[0018] According to another aspect of the embodiments of this application, an electronic device is also provided, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; wherein: the memory is used to store computer programs; and the processor is used to execute the steps in the above method by running the programs stored in the memory.
[0019] This application also provides a computer program product containing instructions that, when run on a computer, cause the computer to perform the steps in the above-described method.
[0020] This invention allows for the acquisition of the current train's location information after initial pre-screening. Based on this location information, factors influencing the continuation of pre-screening are identified, and a decision is made on whether to maintain the pre-screening process. This method enables flexible pre-screening checks and maintenance by performing corresponding judgments for different scenarios, eliminating the need to wait for the train to clear the axle counting section. This significantly improves the tracking time for the current train, reduces operating intervals, and enhances operational efficiency. Attached Figure Description
[0021] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:
[0022] Figure 1 This is a hardware structure block diagram of a computer according to an embodiment of the present invention;
[0023] Figure 2 This is an optional schematic diagram of a train front screen according to an embodiment of the present invention;
[0024] Figure 3 This is an optional flowchart of a method for maintaining the front screen of a train according to an embodiment of the present invention;
[0025] Figure 4 This is an optional schematic diagram illustrating a relationship where the current train and other trains are in close proximity, according to an embodiment of the present invention.
[0026] Figure 5 This is another optional flowchart of the method for maintaining the front screen of a train according to an embodiment of the present invention;
[0027] Figure 6 This is another optional flowchart of the method for maintaining the front screen of a train according to an embodiment of the present invention. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application 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 application, and not all of them. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present application can be combined with each other.
[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0030] Example 1
[0031] The method embodiment provided in Embodiment 1 of this application can be executed in a controller, server, computer, tablet, or similar computing scheduling device. Taking running on a computer as an example, Figure 1 This is a hardware structure block diagram of a computer according to an embodiment of the present invention. For example... Figure 1 As shown, a computer may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. Optionally, the computer may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the computer described above. For example, the computer may also include components that are larger than... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.
[0032] The memory 104 can be used to store computer programs, such as application software programs and modules, like the computer program corresponding to a method for holding a train front screen in an embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, thereby implementing the above-described method. The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include memory remotely located relative to the processor 102, and these remote memories can be connected to the computer via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
[0033] The transmission device 106 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by a computer's communication provider. In one example, the transmission device 106 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In another example, the transmission device 106 may be a Radio Frequency (RF) module used for wireless communication with the Internet.
[0034] When an NCT (non-communication) train completes its initial pre-train screening but before it is upgraded to a CT (communication) train, the current pre-train screening needs to be continuously checked and maintained. The completion or incompleteness of the pre-train screening does not affect the train's upgrade to a CT train; therefore, the pre-train screening checks and maintenance for NCT and CT trains follow the same principles and methods.
[0035] The conditions for this inspection differ from those for the initial screening inspection: the initial screening inspection requires that the distance between the train's locomotive and the axle counting point ahead is less than the minimum operating train length, and that the axle counting section ahead of the train is empty. Only when both conditions are met is the initial screening of the current train considered complete. Figure 2 As shown.
[0036] When the current train has completed the initial pre-screening, and the train needs to continuously perform pre-screening checks and maintain them during operation, the two check conditions mentioned above for the initial screening can no longer be fully met. If the checks are carried out according to the initial screening conditions, it will greatly affect the operational efficiency. Therefore, after completing the pre-screening checks and maintaining them, further checks are required.
[0037] This embodiment provides a method for maintaining a train front screen. Figure 3 This is a flowchart of a method for maintaining a train front screen according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps:
[0038] S302: After the current train completes the initial screening, obtain the current train's location information;
[0039] S304, Determine the influencing factors that affect the current train's continued pre-screening based on the current train's location information;
[0040] S306, determine whether to continue with the initial screening based on influencing factors.
[0041] In the above implementation method, after the current train completes the initial pre-screening, the current train's position information is obtained. Based on the current train's position information, factors affecting the continuation of pre-screening are determined, and a decision is made on whether to continue pre-screening based on these factors. This method allows for flexible pre-screening checks and maintenance by performing corresponding judgments for different scenarios, eliminating the need to wait for the train to clear the axle counting section. This significantly improves the tracking time for the current train, reduces operating intervals, and increases operational efficiency.
[0042] In a preferred embodiment of the present invention, the current train's position information includes at least: whether the current train is the first car in the axle counting section where its locomotive is located, or whether the current train is not the first car in the axle counting section where its locomotive is located; obtaining the current train's position information includes: obtaining data for all trains in the axle counting section where its locomotive is located; and determining whether the current train is the first car in the axle counting section where its locomotive is located based on the data for all trains. The current train's position affects the pre-screening process; based on the different positions of the current trains, it can be identified in advance whether the pre-screening can continue.
[0043] Specifically, when the current train is the first car in the axle counting section where the current train's locomotive is located, the influencing factor is determined to be the state of the adjacent axle counting section in front of the current train; when the current train is not the first car in the axle counting section where the current train's locomotive is located, the influencing factor is determined to be the operating state of the first train in front of the current train.
[0044] 1) When the influencing factor is the status of the adjacent axle counting section ahead of the current train, determine whether to continue the previous screening based on the influencing factor, including: detecting whether the adjacent axle counting section ahead is occupied; if the adjacent axle counting section ahead is not occupied, determine to continue the previous screening; if the adjacent axle counting section ahead is occupied, obtain the train operation status of the adjacent axle counting section ahead, and determine whether to continue the previous screening based on the train operation status.
[0045] Preferably, the train operation status of the adjacent axle counting section ahead is obtained, and a decision is made based on the train operation status to determine whether to continue maintaining the forward screening. This includes: detecting whether there is a communication train in the adjacent axle counting section ahead; if there is no communication train, it is determined that the forward screening cannot continue and the initial forward screening needs to be restarted; if there is a communication train, the operation parameters of the communication train are further obtained, and a decision is made based on the operation parameters of the communication train to determine whether to continue maintaining the forward screening. If there is a hidden non-communication train ahead of the current train, posing a safety hazard, the forward screening of the current train cannot continue, the forward screening is marked as incomplete, the initial forward screening needs to be restarted, and the inspection process ends. When the adjacent axle counting section ahead is occupied, but other trains are present, it is necessary to further determine whether the current train and the train in the adjacent axle counting section ahead are moving away from or approaching each other.
[0046] Further judgments include: obtaining the relative positional relationship between the communication train and the current train, wherein the relative positional relationship includes at least: the relative distance is decreasing and the relative distance is increasing; when the relative positional relationship is that the relative distance is decreasing, determining whether the communication train has completed the pre-screening; if so, determining that the pre-screening should continue; otherwise, determining that the pre-screening should not continue and that the initial pre-screening needs to be repeated; when the relative positional relationship is that the relative distance is increasing, determining whether the communication train has completed the pre-screening; if so, determining that the pre-screening should continue; otherwise, determining that the pre-screening should not continue and that the initial pre-screening needs to be repeated.
[0047] Obtaining the relative positional relationship between the communication train and the current train includes: obtaining the running direction and forward / backward relationship between the communication train and the current train; and determining the relative positional relationship between the communication train and the current train based on the running direction and forward / backward relationship.
[0048] First, based on the positions of the current train and other trains, determine whether the other trains are in front of or behind the current train. Using the current locomotive's position, search forward; if other trains are found, they are considered to be in front. Similarly, using the current locomotive's position, search backward; if other trains are found, they are considered to be behind. If no trains are found in either direction, the current train is not related to any other trains.
[0049] Secondly, based on the preceding and following relationships calculated in the previous step, the relative positions of other trains are determined by comprehensively considering the running directions of the current train and other trains: When the communication train and the current train are running in the same direction, their relative positions are determined based on the preceding and following relationships. Specifically, when the communication train is in front of the current train, the relative distance between them is determined to be increasing; when the communication train is behind the current train, the relative distance is determined to be decreasing. When the communication train and the current train are running in opposite directions, their relative positions are determined based on the preceding and following relationships. Specifically, when the communication train is in front of the current train, the relative distance between them is determined to be decreasing; when the communication train is behind the current train, the relative distance is determined to be increasing.
[0050] For example, if the current train is traveling upwards, and other trains are also traveling upwards, if other trains are detected ahead, they will move away from the current train; if other trains are detected behind, they will move closer to the current train. Figure 4As shown; if the current train is traveling upwards and other trains are traveling downwards, and other trains are detected ahead, they will approach the current train; if they are detected behind, they will move away from the current train. Similarly, if the current train is traveling downwards and other trains are traveling upwards, and other trains are detected ahead, they will approach the current train; if they are detected behind, they will move away from the current train. If the current train is traveling downwards and other trains are traveling downwards, and other trains are detected ahead, they will move away from the current train; if they are detected behind, they will approach the current train. In special cases, if no other trains are found forwards or backwards, regardless of the current train's direction or the directions of other trains, the current train has no connection with other trains, but an error flag must be reported, leading to safety processing and the other trains being considered non-communication trains.
[0051] 2) When the influencing factor is the running status of the first train ahead of the current train, determine whether to continue the pre-screening based on the influencing factor, including: whether the first train ahead of the current train has completed the pre-screening; if so, determine to continue the pre-screening; otherwise, determine that the pre-screening cannot be continued and the initial pre-screening needs to be repeated.
[0052] Specifically, when querying the adjacent axle counting section ahead, if the query fails due to four turnouts being open or the turnout status of the adjacent axle counting section not meeting the requirements, safety procedures are needed. This means the current train's front screening cannot be maintained, the front screening is marked as incomplete, and the initial front screening is restarted. However, if querying the adjacent axle counting section ahead reveals that the track is at its end, it is assumed that no train can be hidden ahead of the current train, and the current train's front screening can continue.
[0053] In the above implementation, the current train's location and direction are used to identify the current train's scenario. Depending on the scenario, the pre-screening is checked and maintained based on the current train's condition and the status of the axle counting section ahead. Rapid pre-screening significantly improves train tracking, reduces operating intervals, and increases operational efficiency. When the current train is a CT (Traffic Tracking) train, it can react quickly to different scenarios based on its current status, the status of trains behind it, the status of the axle counting section ahead, and even its communication status with CI (Computer Interception). Upon identifying a hazard source behind it, the initial screening is re-performed to maintain a safe tracking interval for following trains, ensuring the safety of the current train. Furthermore, by quickly identifying whether the current train is moving away from or approaching trains on the axle counting section ahead, the pre-screening of the current train can be maintained based on the screening of trains in front and behind.
[0054] For the case where the current train is the first car in the axle counting section where the current train's locomotive is located, this embodiment also provides another method for maintaining the train's front screen. Figure 5 This is a flowchart of a method for maintaining a train front screen according to an embodiment of the present invention, such as... Figure 5 As shown, the process includes the following steps:
[0055] S501: Start;
[0056] S502: Determine the status of the axle counting section ahead of the current train;
[0057] S503: Is it occupied? If yes, proceed to step S505; otherwise, proceed to step S504.
[0058] S504: The pre-screening process should be maintained.
[0059] S505: Train status in the axle counting section ahead; Based on the axle counting section where the current train head is located, find the adjacent axle counting section ahead and determine whether the adjacent axle counting section ahead of the train is free or occupied. If the axle counting section ahead is free, the train's front screen can continue to be maintained, and the inspection process ends; if the axle counting section ahead is occupied, it indicates that there is a train or a fault occupying it, and further judgment and inspection are required, then proceed to step S506;
[0060] S506: Is there a train?
[0061] S507: Determined to be occupied by a non-communication vehicle;
[0062] S508: The pre-screening process cannot be maintained;
[0063] When the axle counting section ahead is occupied, it is necessary to check whether there is a train in that axle counting section. If there is no train, it is considered that there is a non-communication train in that axle counting section, and there is a hidden non-communication train ahead of the current train, which poses a safety hazard. That is, the current train's front screening cannot continue, the front screening is marked as incomplete, and the initial front screening needs to be restarted, and the inspection process ends. If there are other trains in the adjacent axle counting section ahead, it is necessary to determine whether the other trains are far away or close to the train being inspected.
[0064] S509: Determine whether other trains ahead are moving away from or approaching the current train;
[0065] S510: Moving away or approaching; if moving away, proceed to step S511; otherwise, proceed to step S515.
[0066] S511: Determine whether the tail section of other trains has been completed and screened;
[0067] S512: Is it completed?
[0068] S513: The pre-screening process cannot be maintained;
[0069] S514: The front screening continues; when other trains ahead are far away from the current train, it is necessary to determine whether the locomotives of the other trains have completed the front screening. If they have, the front screening of the train can be maintained, and the inspection process ends; if it has not been completed, there is a hidden non-communication train between the locomotive of the current train and the locomotives of other trains on the adjacent axle counting section ahead, posing a safety hazard. That is, the front screening of the train cannot continue to be maintained, the front screening is marked as incomplete, the initial front screening is restarted, and the inspection process ends. In special cases, when querying the adjacent axle counting section ahead, it is found that there is a track end behind, so it is considered that it is impossible for a train to be hidden ahead of the current train, and the front screening of the train can continue to be maintained.
[0070] S515: Determine whether the locomotives of other trains have completed the pre-screening;
[0071] S516: Is it completed? If yes, proceed to step S517; otherwise, proceed to step S513.
[0072] S517: The front screening continues; when other trains ahead are close to the current train, it is necessary to determine whether the locomotives of the other trains have completed the front screening. If they have, the front screening of the current train can continue, and the inspection process ends; if it has not been completed, there is a hidden non-communication train between the locomotive of the current train and the locomotive of other trains on the adjacent axle counting section ahead, which poses a safety hazard. That is, the front screening of the current train cannot continue, the front screening is marked as incomplete, the initial front screening is restarted, and the inspection process ends.
[0073] S518: End.
[0074] If the current train is the lead car in the section where the current train's locomotive is located, it is necessary to determine if the adjacent axle counting section ahead is in an idle state before the current train's front screen can continue to be maintained.
[0075] When the current train is the lead car in the section where the current train's head is located, it is necessary to determine if the adjacent axle ahead is occupied by a non-communication train (UT). If so, there is a non-communication train that can be hidden in front of the current train, which poses a safety hazard. That is, the current train's front screen cannot continue to be maintained, the front screen is marked as incomplete, the initial front screen is restarted, and an emergency braking command is sent to the current train to force it to stop.
[0076] When the current train is the lead car in the section where its locomotive is located, it is necessary to determine if there are other trains in the adjacent axle counting section ahead. This requires checking if the tail screening of those other trains is complete. If the tail screening is incomplete (when the CT car can track the adjacent axle counting section of the preceding train, it means the tail screening of that train is complete; if incomplete tail screening is detected, it may indicate a communication failure between the preceding train and the LC, turning it into a non-communication car; or the integrity of the preceding train may be lost, causing a train malfunction. For safety guidance, it is necessary to mark the preceding train as having incomplete tail screening), there may be a safety hazard. The current train's front screening cannot be maintained, the front screening is marked as incomplete, the initial front screening is restarted, and the inspection process ends. If the preceding train has completed its tail screening, it is assumed that no train can be hidden ahead of the current train, the current train's front screening can be maintained, and the inspection process ends.
[0077] When an NCT train completes its initial screening and is upgraded to a CT train, further assessment is required based on the axle count status and overall train condition. Simultaneously, when the NCT train completes its initial screening but before being upgraded to a CT train, continuous inspection and maintenance of the current train's initial screening are necessary. The initial screening maintenance scheme in this invention is applicable both before and after train upgrades.
[0078] For situations where the current train is not the first car in the axle counting section where the current train's locomotive is located, this embodiment also provides another method for maintaining the train's front screen. Figure 6 This is a flowchart of a method for maintaining a train front screen according to an embodiment of the present invention, such as... Figure 6 As shown, the process includes the following steps:
[0079] S601: Start;
[0080] S602: Has the first train ahead of the train completed the screening?
[0081] S603: Is it completed? If yes, proceed to step S604; otherwise, proceed to step S605.
[0082] S604: The pre-screening process should be maintained.
[0083] S605: The pre-screening process cannot be maintained.
[0084] S606: End.
[0085] When the current train is in the same axle counting section as other trains and is not the lead train, it is necessary to check whether the tail screening of the other trains ahead has been completed. If the tail screening has not been completed (the reasons for not completing the tail screening here are the same as those mentioned above), there may be safety hazards, that is, the front screening of the current train cannot continue to be maintained. Mark the front screening as incomplete, restart the initial front screening, and the inspection process ends. When the train ahead has completed the tail screening, it is considered that there is no train hidden in front of the current train, the front screening of the current train can continue to be maintained, and the inspection process ends.
[0086] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of the present invention.
[0087] Example 2
[0088] This embodiment also provides a train control system that uses the train front screen holding method as described in Embodiment 1 above to hold the train front screen.
[0089] Through the above implementation method, after the current train completes the initial pre-screening, the current train's position information is obtained. Based on the current train's position information, factors affecting the continuation of pre-screening are determined, and a decision is made on whether to maintain pre-screening based on these factors. This method allows for flexible pre-screening checks and maintenance by performing corresponding judgments for different scenarios, eliminating the need to wait for the train to clear the axle counting section. This significantly improves the tracking time for the current train, reduces operating intervals, and increases operational efficiency.
[0090] Example 3
[0091] Embodiments of the present invention also provide a storage medium storing a computer program, wherein the computer program is configured to execute the steps in any of the above method embodiments when running.
[0092] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:
[0093] S1, after the current train completes the initial screening, obtain the current train's location information;
[0094] S2, determine the influencing factors that affect the current train's continued pre-screening based on the current train's location information;
[0095] S3, determine whether to continue with the initial screening based on influencing factors.
[0096] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing computer programs, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.
[0097] Embodiments of the present invention also provide an electronic device, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.
[0098] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.
[0099] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:
[0100] S1, after the current train completes the initial screening, obtain the current train's location information;
[0101] S2, determine the influencing factors that affect the current train's continued pre-screening based on the current train's location information;
[0102] S3, determine whether to continue with the initial screening based on influencing factors.
[0103] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated here.
[0104] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0105] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0106] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.
[0107] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0108] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.
[0109] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard drive, magnetic disk, or optical disk.
[0110] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A method for holding a train front screen, characterized in that, include: After the current train completes the initial screening, the position information of the current train is obtained; The current train's location information includes at least: the current train is the first car in the axle counting section where the current train's locomotive is located; Based on the current train's location information, determine the factors that affect the current train's continued pre-screening process; Determine whether to continue with the initial screening based on the aforementioned influencing factors; The factors affecting the continued pre-screening of the current train, determined based on the current train's location information, include: When the current train is the first car in the axle counting section where the current train's locomotive is located, the influencing factor is determined to be the state of the adjacent axle counting section in front of the current train; Wherein, when the influencing factor is the state of the adjacent axle counting section ahead of the current train, determining whether to continue maintaining the previous screening based on the influencing factor includes: Detect whether the adjacent axle counting section in front is occupied; When the adjacent axle counting section ahead is occupied, the train operation status of the adjacent axle counting section ahead is obtained, and it is determined whether to continue to maintain the front screen based on the train operation status; The process of obtaining the train operation status of the adjacent axle counting section ahead, and determining whether to continue the previous screening based on the train operation status, includes: Detect whether there is a communication train in the adjacent axle counting section ahead; If the communication train exists, further obtain the operating parameters of the communication train, and determine whether to continue the previous screening based on the operating parameters of the communication train; The process of acquiring the operating parameters of the communication train and determining whether to continue the previous screening based on the operating parameters of the communication train includes: The relative positional relationship between the communication train and the current train is obtained, wherein the relative positional relationship includes at least: the relative distance is decreasing and the relative distance is increasing; When the relative positional relationship is such that the relative distance is decreasing, it is determined whether the communication train has completed the initial screening. If so, it is determined to continue the initial screening; otherwise, it is determined that the initial screening cannot be continued and the initial screening needs to be repeated. When the relative position relationship shows that the relative distance is increasing, it is determined whether the communication train has completed the initial screening. If so, it is determined to continue the initial screening; otherwise, it is determined that the initial screening cannot be continued and the initial screening needs to be repeated.
2. The method for maintaining the front screen of a train according to claim 1, characterized in that, Obtaining the current train's location information includes: Obtain data for all trains in the axle counting section where the current train head is located; Based on the data of all trains, determine whether the current train is the first car in the axle counting section where the current train's locomotive is located.
3. The method for maintaining the train front screen according to claim 1, characterized in that, The current train's location information includes at least: the current train is not the first car in the axle counting section where the current train's locomotive is located; based on the current train's location information, factors affecting the current train's continued pre-screening are determined, including: When the current train is not the first car in the axle counting section where the current train's locomotive is located, the influencing factor is determined to be the operating status of the first train ahead of the current train.
4. The method for maintaining the front screen of a train according to claim 3, characterized in that, When the influencing factor is the state of the adjacent axle counting section ahead of the current train, determine whether to continue maintaining the previous screening based on the influencing factor, including: Detect whether the adjacent axle counting section in front is occupied; If the adjacent counting section in front is not occupied, it is determined to continue maintaining the front screen.
5. The method for maintaining the front screen of a train according to claim 4, characterized in that, Obtain the train operation status of the adjacent axle counting section ahead, and determine whether to continue maintaining the previous screening based on the train operation status, including: Detect whether there is a communication train in the adjacent axle counting section ahead; If the communication train does not exist, it is determined that the pre-screening cannot continue and the initial pre-screening needs to be repeated.
6. The method for maintaining the front screen of a train according to claim 1, characterized in that, Obtaining the relative positional relationship between the communicating train and the current train includes: Obtain the running direction and forward / backward relationship between the communication train and the current train; The relative positional relationship between the communication train and the current train is determined based on the direction of travel and the preceding / following relationship.
7. The method for maintaining the front screen of a train according to claim 6, characterized in that, Determining the relative positional relationship between the communication train and the current train based on the direction of travel and the preceding / following relationship includes: When the communication train is traveling in the same direction as the current train, the relative positional relationship between the communication train and the current train is determined based on the preceding / following relationship. Specifically, when the communication train is in front of the current train, the relative positional relationship between the communication train and the current train is determined to be one where the relative distance is increasing. When the communication train is behind the current train, the relative positional relationship between the communication train and the current train is determined to be one where the relative distance is decreasing. When the communication train is running in the opposite direction to the current train, the relative positional relationship between the communication train and the current train is determined based on the front-to-back relationship. Specifically, when the communication train is in front of the current train, the relative positional relationship between the communication train and the current train is determined to be one where the relative distance is decreasing. When the communication train is behind the current train, the relative positional relationship between the communication train and the current train is determined to be one where the relative distance is increasing.
8. The method for maintaining the front screen of a train according to claim 3, characterized in that, When the influencing factor is the operating status of the first train ahead of the current train, determining whether to continue the previous screening based on the influencing factor includes: Determine whether the first train ahead of the current train has completed the screening process; If yes, continue with the initial screening; otherwise, it is determined that the initial screening cannot be continued and the initial screening needs to be repeated.
9. A train control system, characterized in that, The method for maintaining the train front screen as described in any one of claims 1 to 8 above is adopted.
10. An electronic device, characterized in that, It includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, communication interface, and memory communicate with each other through the communication bus; wherein: Memory, used to store computer programs; A processor for executing the method steps of any one of claims 1 to 8 by running a program stored in memory.
11. A storage medium, characterized in that, The storage medium includes a stored program, wherein the program, when executed, performs the method steps of any one of claims 1 to 8.