Freight train anti-slip method and device

By using TACN onboard equipment to monitor pressure changes in the brake cylinders or brake pipes of freight trains in real time, outputting warning information and automatically applying emergency braking when necessary, the problem of slippage caused by pressure leakage in traditional freight train anti-slippage technology is solved, ensuring safety.

CN121536268APending Publication Date: 2026-02-17CASCO SIGNAL (BEIJING) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202512049681.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-31
Publication Date
2026-02-17

AI Technical Summary

Technical Problem

Traditional anti-runaway technology for freight trains relies on the pressure of the brake cylinder and brake pipe. When the pressure leaks, the anti-runaway function fails, leading to runaway and safety accidents.

Method used

The TACN on-board equipment monitors the pressure changes of the brake cylinder or brake pipe in real time. When a potential pressure leakage is detected, a warning message is output, and if no confirmation is received from the driver within a preset time, emergency braking is automatically applied.

Benefits of technology

It enables timely alerting of the driver and automatic emergency braking when there is pressure leakage in the brake cylinder or brake pipe, preventing freight trains from slipping and avoiding safety accidents.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121536268A_ABST
    Figure CN121536268A_ABST
Patent Text Reader

Abstract

The invention discloses an anti-slip method and device for a freight train. The method comprises the steps that when a target freight train is converted from a moving state to a static state, first pressure data corresponding to target equipment are obtained according to a working mode corresponding to the target freight train; determining a first anti-slip state of the target freight train according to the train operation state corresponding to the target freight train and the first pressure data corresponding to the target equipment; when the first anti-slip state is that the target equipment has the hidden danger of pressure leakage, outputting first prompt information to prompt a train driver that the target equipment has the hidden danger of pressure leakage; and when train driver confirmation information is not received within a first preset duration and it is confirmed that the target equipment still has the hidden danger of pressure leakage, the first prompt information is cancelled, second prompt information is output, and emergency braking is applied to the target freight train.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of train anti-runaway technology, and in particular to a method and device for preventing freight trains from running off course. Background Technology

[0002] Because freight trains are typically long and carry heavy loads, they have significant inertia, making them difficult to control once runaway occurs. Therefore, preventing runaway from freight trains is of paramount importance.

[0003] Traditional anti-runaway technology primarily relies on air braking systems to prevent freight trains from slipping off the tracks. While this technology is mature and widely used, it depends entirely on the pressure in the brake cylinders and brake pipes to maintain anti-runaway functionality. Once pressure leakage occurs (e.g., due to pipe aging or loose connections), the anti-runaway function immediately fails. Because traditional anti-runaway technology does not monitor pressure changes in the brake cylinders and brake pipes in real time, pressure leaks cannot be detected promptly, leading to the failure of the anti-runaway function and potentially causing the freight train to run away, resulting in a safety accident. Summary of the Invention

[0004] This application provides a method and device for preventing freight trains from slipping, the main purpose of which is to monitor the pressure changes of the brake cylinder or brake pipe of the freight train in real time. When a potential pressure leakage is detected in the brake cylinder or brake pipe, an emergency brake is applied to the freight train to prevent it from slipping and causing a safety accident.

[0005] To address the aforementioned technical problems, this application provides the following technical solutions: Firstly, this application provides a method for preventing freight trains from derailing, the method comprising: When the target freight train changes from a moving state to a stationary state, the first pressure data corresponding to the target equipment is obtained according to the working mode corresponding to the target freight train. The first anti-runaway state of the target freight train is determined based on the train operation status corresponding to the target freight train and the first pressure data corresponding to the target equipment. When the first anti-runaway state indicates that the target equipment has a potential pressure leakage risk, a first prompt message is output to remind the train driver that the target equipment has a potential pressure leakage risk. If no confirmation message is received from the train driver within the first preset time period, and it is confirmed that the target equipment still has a potential pressure leakage hazard, the first prompt message is revoked, a second prompt message is output, and an emergency brake is applied to the target freight train.

[0006] Secondly, this application also provides a freight train anti-runaway device, the device comprising: The first acquisition unit is used to acquire the first pressure data corresponding to the target equipment according to the working mode corresponding to the target freight train when the target freight train changes from a moving state to a stationary state. The first determining unit is used to determine the first anti-runaway state of the target freight train based on the train operation status corresponding to the target freight train and the first pressure data corresponding to the target equipment. The output unit is used to output a first prompt message when the first anti-runaway state is that the target equipment has a potential pressure leakage risk, so as to prompt the train driver that the target equipment has a potential pressure leakage risk; The processing unit is configured to, when it does not receive confirmation information from the train driver within a first preset time period and confirms that the target equipment still has a potential pressure leakage hazard, cancel the first prompt information, output a second prompt information, and apply emergency braking to the target freight train.

[0007] Thirdly, embodiments of this application provide a computer device including a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the steps of the method described in the first aspect.

[0008] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first aspect.

[0009] Fifthly, embodiments of this application provide a computer program product, including a computer program that, when executed by a processor, implements the steps of the method described in the first aspect.

[0010] By employing the above-described technical solution, the technical solution provided in this application has at least the following advantages: This application provides a method and device for preventing freight train runaway. After the target freight train transitions from a moving state to a stationary state, the TACN onboard equipment acquires first pressure data corresponding to the target equipment based on the target freight train's operating mode. It then determines the first anti-runaway state of the target freight train based on the train's operating status and the first pressure data. When the first anti-runaway state indicates a potential pressure leakage hazard in the target equipment, the TACN onboard equipment outputs a first warning message to alert the train driver that the target equipment has a potential pressure leakage hazard and requires appropriate action to prevent pressure leakage. If, within a first preset time period, the TACN onboard equipment does not receive confirmation from the train driver and confirms that the target equipment still has a potential pressure leakage hazard, the TACN onboard equipment cancels the first warning message, outputs a second warning message, and applies emergency braking to the target freight train to prevent runaway and potential safety accidents. In this application, after the target freight train changes from a moving state to a stationary state, the TACN on-board equipment can monitor the pressure changes of the brake cylinder or brake pipe in the target freight train in real time. This allows it to alert the train driver when a potential pressure leak is detected in the brake cylinder or brake pipe. If the train driver does not respond within a certain time, the TACN on-board equipment can actively apply emergency braking to the freight train to prevent it from running away and causing a safety accident.

[0011] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0012] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein: Figure 1 A flowchart of a freight train anti-runaway method provided in an embodiment of this application is shown; Figure 2 A flowchart of another freight train anti-runaway method provided in an embodiment of this application is shown; Figure 3 This paper shows a block diagram of a freight train anti-runaway device provided in an embodiment of this application; Figure 4 A block diagram of another freight train anti-runaway device provided in an embodiment of this application is shown. Detailed Implementation

[0013] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0014] Furthermore, the terms “first,” “second,” and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts.

[0015] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application pertains.

[0016] Traditional anti-runaway technology primarily relies on air braking systems to prevent freight trains from slipping off the tracks. While this technology is mature and widely used, it depends entirely on the pressure in the brake cylinders and brake pipes to maintain anti-runaway functionality. Once pressure leakage occurs (e.g., due to pipe aging or loose connections), the anti-runaway function immediately fails. Because traditional anti-runaway technology does not monitor pressure changes in the brake cylinders and brake pipes in real time, pressure leaks cannot be detected promptly, leading to the failure of the anti-runaway function and potentially causing the freight train to run away, resulting in a safety accident.

[0017] Therefore, in order to monitor the pressure changes of the brake cylinder or brake pipe of a freight train in real time, and to apply emergency braking to the freight train when a potential pressure leakage is detected, thereby preventing the freight train from running away, this application provides a method for preventing freight train runaway. Figure 1 As shown.

[0018] 101. When the target freight train changes from a moving state to a stationary state, the first pressure data corresponding to the target equipment is obtained according to the working mode of the target freight train.

[0019] In this embodiment, the executing entity in each step is the TACN (Train Autonomous Control system based on Beidou Navigation) onboard equipment in the target freight train. The TACN onboard equipment is equipped with the TACN system. The TACN system is a new type of train autonomous operation control system developed based on the existing train control system and designed for the application needs of freight railways. The system adopts key technologies such as multi-source fusion train positioning based on Beidou satellite positioning, train autonomous integrity check integrating wind pressure, position and speed information, electronic map and IP-based vehicle-to-ground wireless communication, etc. It reduces trackside signal equipment, realizes less maintenance of station equipment and maintenance-free equipment in sections, reduces maintenance difficulty and workload, and has the characteristics of strong applicability, advanced technology and convenient operation and maintenance, filling the gap in the domestic freight railway moving block intelligent train control system.

[0020] The working modules of the TACN onboard equipment include: full monitoring mode, guidance mode, visual mode, backup monitoring mode, advance mode, retreat mode and shunting mode; the target equipment is specifically the target brake cylinder or target brake pipe in the target freight train.

[0021] When the target freight train changes from a moving state to a stationary state, the TACN on-board equipment can obtain the first pressure data corresponding to the target equipment according to the working mode of the target freight train. That is, when the target equipment is the target brake cylinder, the pressure value corresponding to the target brake cylinder is collected by the preset pressure sensor to obtain the first pressure data corresponding to the target brake cylinder. When the target equipment is the target brake pipe, the pipe pressure reduction value corresponding to the target brake pipe is collected by the preset sensor to obtain the first pressure data corresponding to the target brake pipe.

[0022] 102. Determine the first anti-runaway state of the target freight train based on the train operation status corresponding to the target freight train and the first pressure data corresponding to the target equipment.

[0023] After obtaining the first pressure data corresponding to the target device, the TACN on-board equipment can determine the first anti-runaway state of the target freight train based on the train operation status and the first pressure data of the target device. That is, when the target device is the target brake cylinder, if the pressure value of the target brake cylinder is less than the preset pressure threshold and the target freight train is stationary for more than X seconds, the first anti-runaway state of the target freight train is determined to be that the target brake cylinder has a pressure leakage risk. When the target device is the target brake pipe, if the pipe pressure reduction value of the target brake pipe is less than the preset pipe pressure reduction threshold and the target freight train is stationary for more than X seconds, the first anti-runaway state of the target freight train is determined to be that the target brake pipe has a pressure leakage risk. Here, X can be, but is not limited to, 5, 7, 10, etc.

[0024] 103. When the first anti-runaway state indicates that there is a potential pressure leakage in the target equipment, output the first prompt message to remind the train driver that there is a potential pressure leakage in the target equipment.

[0025] When the first anti-runaway status of the target freight train is determined to be a potential pressure leakage hazard in the target equipment, the TACN onboard equipment can output the first warning message to remind the train driver that there is a potential pressure leakage hazard in the target equipment and that appropriate measures need to be taken to prevent the pressure leakage of the target equipment from occurring.

[0026] 104. If no confirmation message is received from the train driver within the first preset time period, and it is confirmed that there is still a potential pressure leakage hazard in the target equipment, the first prompt message is canceled, the second prompt message is output, and emergency braking is applied to the target freight train.

[0027] If the TACN onboard equipment does not receive confirmation from the train driver within the first preset time period, and the TACN onboard equipment confirms that the target equipment still has a potential pressure leakage hazard (i.e., the train driver has not taken corresponding measures to address the target equipment), the TACN onboard equipment will cancel the first prompt message, output a second prompt message, and apply emergency braking to the target freight train. The first preset time period may be, but is not limited to, 10 seconds, 15 seconds, 20 seconds, etc., and the second prompt message is used to inform the train driver that the TACN onboard equipment is applying emergency braking to the target freight train.

[0028] This application provides a method for preventing freight train runaway. After the target freight train transitions from a moving state to a stationary state, the TACN onboard equipment acquires first pressure data corresponding to the target equipment based on the target freight train's operating mode. It then determines the first anti-runaway state of the target freight train based on the train's operating status and the first pressure data. When the first anti-runaway state indicates a potential pressure leakage hazard in the target equipment, the TACN onboard equipment outputs a first warning message to alert the train driver that the target equipment has a potential pressure leakage hazard and requires appropriate action to prevent pressure leakage. If, within a first preset time period, the TACN onboard equipment does not receive confirmation from the train driver and confirms that the target equipment still has a potential pressure leakage hazard, the TACN onboard equipment cancels the first warning message, outputs a second warning message, and applies emergency braking to the target freight train to prevent runaway and potential safety accidents. In this embodiment, after the target freight train changes from a moving state to a stationary state, the TACN on-board equipment can monitor the pressure changes of the brake cylinder or brake pipe in the target freight train in real time. This allows it to alert the train driver when a potential pressure leak is detected in the brake cylinder or brake pipe. If the train driver does not respond within a certain time, the TACN on-board equipment can actively apply emergency braking to the freight train to prevent it from slipping and causing a safety accident.

[0029] To provide a more detailed explanation, this application provides another method for preventing freight trains from slipping off the rails, as detailed below. Figure 2 As shown.

[0030] 201. When the target freight train changes from a moving state to a stationary state, the first pressure data corresponding to the target equipment is obtained according to the working mode of the target freight train.

[0031] When the target freight train changes from a moving state to a stationary state, the TACN onboard equipment can obtain the first pressure data corresponding to the target equipment according to the working mode of the target freight train.

[0032] Specifically, in this step, when the target freight train's operating mode is full monitoring mode, guidance mode, visual mode, backup monitoring mode, aggressive mode, or aggressive rearward mode, the target equipment is identified as the target brake pipe, and the pipe pressure reduction value corresponding to the target brake pipe is obtained, thereby obtaining the first pressure data corresponding to the target brake pipe; when the target freight train's operating mode is shunting mode, the target equipment is identified as the target brake cylinder, and the pressure value corresponding to the target brake cylinder is obtained, thereby obtaining the first pressure data corresponding to the target brake cylinder.

[0033] 202. Determine the first anti-runaway state of the target freight train based on the train operation status corresponding to the target freight train and the first pressure data corresponding to the target equipment.

[0034] Regarding step 202, determining the first anti-runaway state of the target freight train based on the train operation status corresponding to the target freight train and the first pressure data corresponding to the target equipment, please refer to the relevant description of step 102 above. This embodiment of the application will not repeat it here.

[0035] 203. When the first anti-runaway state indicates that there is a potential pressure leakage in the target equipment, output the first prompt message to remind the train driver that there is a potential pressure leakage in the target equipment.

[0036] Regarding step 203, when the first anti-slip state is that the target equipment has a potential pressure leakage risk, the first prompt message is output to prompt the train driver that the target equipment has a potential pressure leakage risk. You can refer to the relevant description of step 103 above. This application embodiment will not repeat it here.

[0037] 204. If no confirmation message is received from the train driver within the first preset time period, and it is confirmed that there is still a potential pressure leakage hazard in the target equipment, the first prompt message is canceled, the second prompt message is output, and emergency braking is applied to the target freight train.

[0038] Regarding step 204, when no confirmation information is received from the train driver within the first preset time period, and it is confirmed that there is still a potential pressure leakage hazard in the target equipment, the first prompt information is revoked, the second prompt information is output, and an emergency brake is applied to the target freight train. For the relevant description of step 104 above, please refer to the embodiment of this application.

[0039] 205. Upon receiving confirmation from the train driver, cease applying emergency braking to the target freight train.

[0040] After the TACN onboard equipment applies emergency braking to the target freight train, if the TACN onboard equipment receives a confirmation message from the train driver, it will stop applying emergency braking to the target freight train.

[0041] 206. When the target freight train returns to a stationary state, acquire the second pressure data corresponding to the target equipment.

[0042] After the TACN onboard equipment stops applying emergency braking to the target freight train, when the target freight train returns to a stationary state from a moving state, the TACN onboard equipment acquires the second pressure data corresponding to the target equipment. That is, when the target equipment is the target brake cylinder, the pressure value corresponding to the target brake cylinder is collected through a preset pressure sensor to obtain the second pressure data corresponding to the target brake cylinder. When the target equipment is the target brake pipe, the pipe decompression value corresponding to the target brake pipe is collected through a preset sensor to obtain the second pressure data corresponding to the target brake pipe.

[0043] 207. Determine the second anti-runaway status of the target freight train based on the second pressure data corresponding to the target equipment.

[0044] After obtaining the second pressure data corresponding to the target device, the TACN on-board equipment can determine the second anti-runaway state of the target freight train based on the second pressure data corresponding to the target device. That is, when the target device is the target brake cylinder, if the pressure value corresponding to the target brake cylinder is less than the preset pressure threshold, the second anti-runaway state of the target freight train is determined to be that the target brake cylinder has a pressure leakage risk. When the target device is the target brake pipe, if the pipe pressure reduction value corresponding to the target brake pipe is less than the preset pipe pressure reduction threshold, the second anti-runaway state of the target freight train is determined to be that the target brake pipe has a pressure leakage risk.

[0045] 208. When the second anti-leakage state indicates that there is a potential pressure leakage in the target equipment, adjust the corresponding pressure parameters of the target equipment.

[0046] When it is determined that the second anti-runaway state of the target freight train is that there is a potential pressure leakage in the target equipment, the TACN on-board equipment needs to adjust the pressure parameters corresponding to the target equipment. That is, when the target equipment is the target brake cylinder, the TACN on-board equipment needs to adjust the pressure value corresponding to the target brake cylinder to be greater than the preset pressure threshold within Y seconds. When the target equipment is the target brake pipe, the TACN on-board equipment needs to adjust the pipe pressure reduction value corresponding to the target brake pipe to be greater than the preset pipe pressure reduction threshold within Y seconds. Here, Y can be, but is not limited to: 5, 7, 10, etc.

[0047] Furthermore, in this embodiment, after the TACN on-board equipment adjusts the pressure parameters corresponding to the target equipment, when the target freight train is still stationary, the TACN on-board equipment needs to obtain the third pressure data corresponding to the target equipment. That is, when the target equipment is the target brake cylinder, the pressure value corresponding to the target brake cylinder is collected by a preset pressure sensor to obtain the third pressure data corresponding to the target brake cylinder. When the target equipment is the target brake pipe, the pipe pressure reduction value corresponding to the target brake pipe is collected by a preset sensor to obtain the third pressure data corresponding to the target brake pipe. Based on the train running status corresponding to the target freight train and the third pressure data corresponding to the target equipment, the third anti-runaway state of the target freight train is determined. That is, when the target equipment is the target brake cylinder, if the pressure value corresponding to the target brake cylinder is less than the preset pressure threshold, and the duration of the target freight train being stationary exceeds Z seconds, then the third anti-runaway state of the target freight train is determined to be that the target brake cylinder has pressure leakage. When the target equipment is the target brake pipe, if the target brake pipe... If the corresponding pipe pressure reduction value is less than the preset pipe pressure reduction threshold, and the target freight train remains stationary for more than Z seconds, then the third anti-runaway state of the target freight train is determined to be a pressure leak in the target brake pipe. Z can be, but is not limited to, 50, 60, 70, etc. When the third anti-runaway state indicates a pressure leak in the target equipment, the TACN onboard equipment can output a first warning message to alert the train driver that the target equipment still has a potential pressure leak. If, within a second preset time period, the TACN onboard equipment does not receive confirmation from the train driver, and the TACN onboard equipment confirms that the target equipment still has a potential pressure leak (i.e., the train driver has not taken appropriate action on the target equipment), the TACN onboard equipment cancels the first warning message, outputs a second warning message, and applies emergency braking to the target freight train. The second preset time period can be, but is not limited to, 90 seconds, 120 seconds, 150 seconds, etc. The second warning message is used to alert the train driver that the TACN onboard equipment is applying emergency braking to the target freight train.

[0048] Furthermore, in this embodiment, the first prompt information includes first voice information and first text information, and the second prompt information includes second voice information and second text information. The specific process of the TACN vehicle-mounted device outputting the first prompt information is as follows: the first text information is output and displayed through the human-machine interface unit (DMI), and the first text information is output through the voice module. The specific process of the TACN vehicle-mounted device outputting the second prompt information is as follows: the second text information is output and displayed through the human-machine interface unit, and the second text information is output through the voice module.

[0049] Furthermore, as a response to the above Figure 1 and Figure 2In addition to the implementation of the method shown, another embodiment of this application also provides a freight train anti-runaway device. This device embodiment corresponds to the aforementioned method embodiment. For ease of reading, this device embodiment will not repeat the details of the aforementioned method embodiment, but it should be clear that the device in this embodiment can implement all the contents of the aforementioned method embodiment. This device is used to monitor the pressure changes of the brake cylinder or brake pipe of a freight train in real time. When a potential pressure leakage is detected in the brake cylinder or brake pipe, an emergency brake is applied to the freight train to prevent it from running away and causing a safety accident. Specifically, as shown... Figure 3 As shown, the device includes: The first acquisition unit 31 is used to acquire the first pressure data corresponding to the target equipment according to the working mode corresponding to the target freight train when the target freight train changes from a moving state to a stationary state. The first determining unit 32 is used to determine the first anti-runaway state of the target freight train based on the train operation status corresponding to the target freight train and the first pressure data corresponding to the target equipment. The output unit 33 is used to output a first prompt message when the first anti-runaway state is that the target equipment has a potential pressure leakage risk, so as to prompt the train driver that the target equipment has a potential pressure leakage risk; The processing unit 34 is configured to, when it does not receive confirmation information from the train driver within a first preset time period and confirms that the target equipment still has a potential pressure leakage hazard, cancel the first prompt information, output a second prompt information, and apply emergency braking to the target freight train.

[0050] Furthermore, such as Figure 4 As shown, the device also includes: The stopping unit 35 is used to stop applying emergency braking to the target freight train when it receives confirmation information from the train driver. The second acquisition unit 36 ​​is used to acquire the second pressure data corresponding to the target equipment when the target freight train returns to a stationary state. The second determining unit 37 is used to determine the second anti-runaway state of the target freight train based on the second pressure data corresponding to the target equipment. The adjustment unit 38 is used to adjust the pressure parameters corresponding to the target equipment when the second anti-leakage state is that the target equipment has a potential pressure leakage risk.

[0051] Furthermore, such as Figure 4 As shown, the device also includes: The third acquisition unit 39 is used to acquire the third pressure data corresponding to the target equipment when the target freight train is stationary. The third determining unit 310 is used to determine the third anti-runaway state of the target freight train based on the train operation status corresponding to the target freight train and the third pressure data corresponding to the target equipment. The output unit 33 is also used to output the first prompt information when the third anti-runaway state is that the target equipment has a pressure leakage, so as to prompt the train driver that the target equipment has a potential pressure leakage risk; The processing unit 34 is also configured to, when it does not receive confirmation information from the train driver within a second preset time period and confirms that the target equipment still has a potential pressure leakage hazard, cancel the first prompt information, output the second prompt information, and apply emergency braking to the target freight train.

[0052] Furthermore, such as Figure 4 As shown, the first acquisition unit 31 is specifically used for: When the working mode corresponding to the target freight train is full monitoring mode, guidance mode, visual mode, backup monitoring mode, advance mode or retreat mode, the target equipment is determined to be the target brake pipe, and the pipe pressure reduction value corresponding to the target brake pipe is obtained. When the target freight train is in shunting mode, the target equipment is identified as the target brake cylinder, and the pressure value corresponding to the target brake cylinder is obtained.

[0053] Furthermore, such as Figure 4 As shown, the first prompt information includes first voice information and first text information. The output unit 33 is specifically used to: output and display the first text information through the human-machine interface unit; and output the first text information through the voice module. The second prompt information includes second voice information and second text information. The processing unit 34 is specifically used to: output and display the second text information through the human-machine interface unit; and output the second text information through the voice module.

[0054] This application provides a method and device for preventing freight trains from slipping off the rails. In this embodiment, after a target freight train changes from a moving state to a stationary state, the TACN onboard equipment acquires first pressure data corresponding to the target equipment based on the target freight train's operating mode. It then determines a first anti-slipping state of the target freight train based on the train's operating status and the first pressure data. When the first anti-slipping state indicates a potential pressure leakage hazard in the target equipment, the TACN onboard equipment outputs a first warning message to alert the train driver that the target equipment has a potential pressure leakage hazard and requires appropriate action to prevent pressure leakage. If, within a first preset time period, the TACN onboard equipment does not receive confirmation from the train driver and confirms that the target equipment still has a potential pressure leakage hazard, the TACN onboard equipment cancels the first warning message, outputs a second warning message, and applies emergency braking to the target freight train to prevent it from slipping off the rails and causing a safety accident. In this embodiment, after the target freight train changes from a moving state to a stationary state, the TACN on-board equipment can monitor the pressure changes of the brake cylinder or brake pipe in the target freight train in real time. This allows it to alert the train driver when a potential pressure leak is detected in the brake cylinder or brake pipe. If the train driver does not respond within a certain time, the TACN on-board equipment can actively apply emergency braking to the freight train to prevent it from slipping and causing a safety accident.

[0055] This application provides a computer device, including a memory, a processor, and a computer program stored in the memory. The processor executes the computer program to implement the freight train anti-runaway method described above.

[0056] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the freight train anti-runaway method described above.

[0057] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the freight train anti-runaway method described above.

[0058] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0059] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0060] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0061] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0062] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0063] Memory may include non-persistent memory in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0064] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, magnetic magnetic disk storage or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0065] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0066] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0067] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A method of preventing a freight train from slipping, characterized by, The method comprises: When the target freight train changes from a moving state to a stationary state, first pressure data corresponding to a target device is acquired according to a working mode corresponding to the target freight train; A first anti-slipping state of the target freight train is determined according to a train running state corresponding to the target freight train and the first pressure data corresponding to the target device; When the first anti-slipping state is that the target device has a pressure leakage risk, first prompt information is output to prompt a train driver that the target device has a pressure leakage risk; When no train driver confirmation information is received within a first preset time length and it is confirmed that the target device still has a pressure leakage risk, the first prompt information is cancelled, second prompt information is output, and emergency braking is applied to the target freight train.

2. The method of claim 1, wherein, After the emergency braking is applied to the target freight train, the method further comprises: When train driver confirmation information is received, the emergency braking applied to the target freight train is stopped; When the target freight train returns to a stationary state, second pressure data corresponding to the target device is acquired; A second anti-slipping state of the target freight train is determined according to the second pressure data corresponding to the target device; When the second anti-slipping state is that the target device has a pressure leakage risk, a pressure parameter corresponding to the target device is adjusted.

3. The method of claim 2, wherein, After the pressure parameter corresponding to the target device is adjusted, the method further comprises: When the target freight train is in a stationary state, third pressure data corresponding to the target device is acquired; A third anti-slipping state of the target freight train is determined according to a train running state corresponding to the target freight train and the third pressure data corresponding to the target device; When the third anti-slipping state is that the target device has a pressure leakage, the first prompt information is output to prompt a train driver that the target device has a pressure leakage risk; When no train driver confirmation information is received within a second preset time length and it is confirmed that the target device still has a pressure leakage risk, the first prompt information is cancelled, the second prompt information is output, and emergency braking is applied to the target freight train.

4. The method of claim 1, wherein, The first pressure data corresponding to the target device is acquired according to the working mode corresponding to the target freight train, comprising: When the working mode corresponding to the target freight train is a full monitoring mode, a leading mode, a visual mode, a backup monitoring mode, an aggressive mode or a trailing mode, the target device is determined to be a target brake pipe, and a pipe pressure reduction value corresponding to the target brake pipe is acquired; When the working mode corresponding to the target freight train is a shunting mode, the target device is determined to be a target brake cylinder, and a pressure value corresponding to the target brake cylinder is acquired.

5. The method according to any one of claims 1-4, characterized in that, The first prompt information comprises first voice information and first text information, and the output of the first prompt information comprises: The first text information is output and displayed through a human-computer interface unit; The first text information is output through a voice module; The second prompt information comprises second voice information and second text information, and the output of the second prompt information comprises: The second text information is output and displayed through the human-machine interface unit; The second text information is output through the voice module.

6. A freight train anti-runaway device characterized by comprising: The device comprises: A first acquisition unit configured to, when a target freight train changes from a moving state to a stationary state, acquire first pressure data corresponding to a target device according to a working mode corresponding to the target freight train; A first determination unit configured to determine a first anti-slipping state of the target freight train according to a train running state corresponding to the target freight train and the first pressure data corresponding to the target device; An output unit configured to, when the first anti-slipping state indicates that the target device has a pressure leakage risk, output a first prompt information to prompt a train driver that the target device has a pressure leakage risk; A processing unit configured to, when no train driver confirmation information is received within a first preset time length and it is confirmed that the target device still has a pressure leakage risk, cancel the first prompt information, output a second prompt information, and apply emergency braking to the target freight train.

7. The apparatus of claim 6, wherein, The device further comprises: A stopping unit configured to, when a train driver confirmation information is received, stop applying emergency braking to the target freight train; A second acquisition unit configured to, when the target freight train returns to a stationary state, acquire second pressure data corresponding to the target device; A second determination unit configured to determine a second anti-slipping state of the target freight train according to the second pressure data corresponding to the target device; An adjustment unit configured to, when the second anti-slipping state indicates that the target device has a pressure leakage risk, adjust a pressure parameter corresponding to the target device.

8. A computer device comprising a memory, a processor, and a computer program stored on the memory, wherein, The processor executes the computer program to implement the steps of the method of any one of claims 1 to 5.

9. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 5.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to implement the steps of the method of any one of claims 1 to 5.