Side impact protection method, equipment and medium based on line resource management

Abstract

The present invention relates to a side impact protection method, device, and medium based on line resource management. The method utilizes dual occupancy calculation intrusion of secondary detection equipment and automatic train protection, and manages side impact protection resources from a resource management perspective. The side impact protection method comprises: step S1, where a resource management unit (RMU) applies for resources in a side impact protection area; step S2, where the resource management unit (RMU) performs intrusion management on the resources in the side impact protection area; and step S3, where the resource management unit (RMU) performs status management on the resources in the side impact protection area. Compared with existing technologies, the present invention has the advantages of ensuring both system accuracy and system availability.

Description

Technical Field

[0001] The present invention relates to a rail transit signal system, and in particular to a side impact protection method, equipment and medium based on line resource management. Background Art

[0002] Train separation protection in the train control system is an important protection function to ensure the safe operation of trains, and train side impact protection in the automatic train separation protection is the key and difficulty in train safety protection.

[0003] After searching, the following methods are commonly used for train side impact protection:

[0004] Chinese patent publication number CN107244336A discloses a side impact protection device and method based on the direction information of secondary detection equipment, specifically disclosing a detection point, a secondary detection equipment, an area controller, a computer interlocking system and a safety communication system between these devices, wherein the secondary detection equipment is connected to the detection point, the area controller and the computer interlocking system respectively; the secondary detection equipment detects the direction information of the train cross-pressure and the train occupancy information at each detection point, and sends it to the area controller and the computer interlocking system, and the area controller and the computer interlocking system respectively calculate whether there is a non-communication train entering the side impact protection area and from which direction the train enters the side impact protection area based on the direction information of the train cross-pressure and the train occupancy information at the detection point, so as to determine whether there is a risk of side collision, and take corresponding measures if there is a risk.

[0005] Chinese patent publication number CN113479241A discloses a method for train side impact protection and a train control system. Specifically, it discloses that signal lights and secondary train position detection equipment are not required on the trackside, and the traditional approach to centralized allocation and management of line resources within the route is eliminated. The system processes the trackside line resources at a more refined granularity, and allocates and releases line resources in an orderly and gradual manner based on the train operation plan, thereby maximizing the utilization efficiency of trackside line resources and greatly shortening the train tracking interval.

[0006] However, the above-mentioned existing technologies generally have the problems of low safety and significant impact on the normal operation of trains. Summary of the Invention

[0007] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a side impact protection method, equipment and medium based on line resource management.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] According to a first aspect of the present invention, a side impact protection method based on line resource management is provided. The method adopts a dual occupancy calculation intrusion of a secondary detection device and automatic train protection, and manages side impact protection resources from a resource management perspective. The side impact protection method includes:

[0010] Step S1: The resource management unit RMU applies for resources in the side impact protection area;

[0011] Step S2: The resource management unit RMU performs intrusion management on resources in the side impact protection area;

[0012] Step S3: The resource management unit RMU performs status management on the resources in the side impact protection area.

[0013] As a preferred technical solution, the application for the side impact protection resources in step S1 includes an application for isolated side impact protection area resources and an application for overlapping side impact protection area resources.

[0014] As a preferred technical solution, the application for the isolated side impact protection area resources meets the set conditions, and the running side impact protection area applied for use is in the allowed state at the time of application. The resource management unit RMU marks the applied side impact protection resources as allocated, locks the switch position and marks the locking direction of the side protection area.

[0015] As a preferred technical solution, the setting conditions are to meet any of the following conditions:

[0016] S11) The switch associated with the side impact protection area applied for is not locked;

[0017] S12) The switch locking position is consistent with the switch position applied for side impact protection, and the direction of use of the applied side impact protection resources is consistent with the existing locking direction of the side impact protection area.

[0018] As a preferred technical solution, the overlapping side impact protection area resource application must meet the conditions for the isolated side impact protection area resource application, and must also meet the following additional requirements: the locking directions of the two overlapping side impact protection areas are in the same direction; if when applying for one of the side protection area resources, the other overlapping side protection area has been allocated, and the locking direction of the overlapping area is opposite to the current application direction, the RMU will not allocate the currently applied side impact protection area.

[0019] As a preferred technical solution, in step S2, when the following conditions are met at the same time, the RMU sets the side impact protection area on the current side to the allowed state, otherwise it is set to the restricted state:

[0020] S21) There is no intrusion into the non-bypassable area in the opposite side impact protection area;

[0021] S22) If there is an intrusion into the bypassable area in the side impact protection area on the opposite side, then when the intrusion occurs, there is also an intrusion on the bypass path of the side impact protection area on the currently calculated side; otherwise, there cannot be an intrusion into the bypassable area.

[0022] As a preferred technical solution, the non-bypassable area is a portion of the side impact protection area that is not within the range of the same secondary detection equipment of the turnout;

[0023] The bypassable area is a portion of the side impact protection area that is within the range of the same secondary detection equipment of the corresponding turnout;

[0024] The bypass travel path is the area within the range of the secondary detection equipment of the turnout to which the current side impact protection area belongs, excluding the area included in the opposite side impact protection area.

[0025] The side impact protection area of ​​a turnout is divided into two types: the fixed side impact protection area and the reverse side impact protection area. The RMU periodically calculates whether an intrusion is permitted for both areas using the following method. The intrusion permission status of the side impact protection area on the current side is determined by the intrusion status on the opposite side.

[0026] As a preferred technical solution, the intrusion is specifically: if the physical area is spatially covered by the "train automatic protection" area and its associated secondary detection equipment detects occupancy, then there is intrusion in the physical area.

[0027] As a preferred technical solution, in step S3, when the train applies for an allocated side impact protection area on the running path, and the status of the side impact protection area calculated by step S2 is permitted, the status is transitioned to authorized in the current cycle, allowing the train to pass through the area;

[0028] If the state calculated in step S2 of the current cycle is a restricted state or the resources in the area are blocked, the state of the current cycle will be transitioned to cancel authorization, prohibiting the driving permit to pass through the area.

[0029] As a preferred technical solution, after the train obtains authorization for the area and passes through the area according to the driving permit, when its "train automatic protection" leaves the area, the RMU will release the applied side impact protection area, set the status to idle, unlock the associated switches, and clear the locking direction of the side protection area.

[0030] According to a second aspect of the present invention, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method when executing the program.

[0031] According to a third aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method described above is implemented.

[0032] Compared with the prior art, the present invention has the following advantages:

[0033] 1) The present invention manages the side impact protection area from a resource perspective, achieving precise control of the driving permits for the side impact protection resources in the turnout area. This is a preemptive protection measure that prevents the system from proactively allowing two vehicles to enter the side impact protection area at the same time.

[0034] 2) Based on line resource management, the present invention proposes side impact protection zone resources and various resource state transition conditional methods to ensure that the system does not allocate hostile resource states. In addition, when a train fails to follow signals and illegally enters the side impact protection zone, the RMU system can respond, reducing the safety impact on normal operation.

[0035] 3) The present invention is based on the intrusion detection method of "train automatic protection" plus secondary detection equipment occupancy, which ensures the accuracy of the system while ensuring the availability of the system

[0036] 4) Step S2 of the present invention provides a post-event defense method, which prohibits normal trains from passing through the side impact protection area after a vehicle illegally enters the side impact protection area, thereby reducing the impact on normal vehicles and improving the safety of the system;

[0037] 5) The bypass method designed in step S2 of the present invention ensures that normal vehicles are not mistakenly blocked in the special scenario where the secondary detection equipment invades the limited side impact protection area, thereby improving the availability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a flow chart of the method of the present invention;

[0039] Figure 2 A schematic diagram of an isolated side impact protection resource application of the present invention;

[0040] Figure 3 A schematic diagram of overlapping side impact protection resource applications according to the present invention;

[0041] Figure 4 This is a schematic diagram of the static data model division of the side impact protection area of ​​the present invention;

[0042] Figure 5 This is a schematic diagram of the intrusion rules of the present invention;

[0043] Figure 6 This is a schematic diagram of the state management model of the side impact protection area of ​​the present invention. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0045] like Figure 1 As shown, the present invention is based on a side impact protection method for line resource management. The method adopts a dual occupancy calculation intrusion of secondary detection equipment and automatic train protection, and manages side impact protection resources from the perspective of resource management. The side impact protection method includes:

[0046] Step S1: The resource management unit RMU applies for resources in the side impact protection area;

[0047] Step S2: The resource management unit RMU performs intrusion management on resources in the side impact protection area;

[0048] Step S3: The resource management unit RMU performs status management on the resources in the side impact protection area.

[0049] The present invention aims to solve the side impact protection problem under the RMU system framework. Based on line resource management, side impact protection area resources are proposed, and various resource state transition conditional methods are proposed. It is ensured that the system will not allocate hostile resource states, and when the train does not follow the signal and illegally enters the side impact protection area, the RMU system can respond to reduce the safety impact on normal driving. The intrusion detection method based on "automatic train protection" plus secondary detection equipment occupancy ensures the accuracy of the system while ensuring the availability of the system.

[0050] Requests for side impact protection resources. The RMU processes requests for side impact protection area resources from the ATS or CC. These requests include the target side impact protection area identifier and resource usage direction. Upon receiving the request, the RMU determines whether the requested resource is legitimate within its jurisdiction and then determines whether the resource is available for allocation. Two basic scenarios can be considered: requests for isolated side impact protection areas and requests for overlapping side impact protection areas.

[0051] like Figure 2 As shown in the figure, when applying for isolated side impact protection resources, assuming that the running side impact protection area 1 is applied, the RMU calculates the associated turnout and the opposite side impact protection area 2 based on the static configuration data. If:

[0052] 1. The associated switch is not locked.

[0053] 2. The associated switch is locked in the side impact protection zone, and the direction of use applied for is consistent with the existing locking direction of the side impact protection zone.

[0054] 3. The associated switch is locked in the running side impact protection zone, and the running side impact protection zone is not locked.

[0055] If any of the above conditions is met, the RMU will continue to check whether there is any illegal intrusion in the side impact protection zone 2. If there is no illegal intrusion, the side impact protection resource will be allocated to the applicant: the running side impact protection zone 1 is recorded as allocated, the locking direction is marked as UP, and the associated switch is locked; the opposite side impact protection zone 2 is recorded as prohibited entry to prevent the side impact protection zone 2 from being allocated as a running side impact protection zone, which would cause two vehicles to enter the side impact protection zone 1 and the side impact protection zone 2 at the same time and cause a collision.

[0056] like Figure 3 As shown in the figure, when applying for overlapping side impact protection resources, the application is for running side impact protection area 1, and side impact protection area 1 and its opposite side impact protection area 2 meet the above-mentioned isolated resource application and allocation conditions, but:

[0057] The requested side impact protection area 1 and side impact protection area 3 overlap. At this time, if side impact protection area 3 has been allocated and the locking direction is opposite to the use direction of the requested side impact protection area 1, side impact protection area 1 should not be allocated, as shown in Scenario 1.

[0058] The applied side impact protection area 1 overlaps with the side impact protection area 2 and the side impact protection area 3. If the side impact protection area 3 has been allocated, the side impact protection area 1 should not be allocated, as shown in scenario 2.

[0059] The side impact protection area 2 on the opposite side of the applied side impact protection area 1 and the side impact protection area 4 on the opposite side of the allocated side impact protection area 3 overlap. The prohibited status of the side impact protection area 4 does not affect the allocation of the side impact protection area 1. As shown in scenario 3, the applied side impact protection area 1 should be allocated, and the side impact protection area 2 on the opposite side is declared as prohibited.

[0060] Intrusion management of side impact protection resources, intrusion detection modeling of side impact protection areas such as Figure 4 As shown, the permitted state of the current side impact protection zone 2 is determined by whether there is an intrusion in the side impact protection zone 1. According to the position of the secondary detection equipment boundary and the position relationship of the side impact protection zone, the side impact protection zone 1 can be divided into: a bypassable area and a non-bypassable area. Among them:

[0061] The bypassable area is a portion of the side impact protection area 1 that is not within the range of the same secondary detection equipment of the corresponding turnout 1.

[0062] The non-bypassable area is a portion of the side impact protection area 1 that is within the range of the same secondary detection equipment of the corresponding turnout 1.

[0063] The bypass running path is located on the running path where the current side impact protection area 2 is located, within the range of the secondary detection equipment where the switch 1 is located, and is an area obtained by excluding the part of the area included in the opposite side impact protection area 1.

[0064] In the RMU system framework, "train automatic protection" is a tracking model for the train's extreme position range within the system. Its range indicates the extreme position interval that the vehicle may appear after asynchrony is eliminated; the occupation of the secondary detection equipment interval indicates that the interval is physically occupied by the train or the secondary detection equipment is faulty. The present invention uses the "train automatic protection" coverage area, and in the same physical space, the occupation of the secondary detection equipment interval associated with the area to confirm that the area has been invaded. Figure 5 As shown in the figure, according to the above rules, only the secondary detection equipment interval 2 has intrusion. During project implementation, the projection of the side impact protection area on the BLOCK section is used as the smallest physical area and the minimum granularity unit for intrusion judgment. This can improve the sensitivity of the system. At the same time, in order to eliminate the inconsistency between the state collection of "train automatic protection" and the secondary detection equipment, it is necessary to filter the state collected by "train automatic protection" and the secondary detection equipment to ensure that the system can detect at least one intrusion when the train passes through the side impact protection area.

[0065] When the following conditions are met simultaneously, the RMU sets the side impact protection zone 2 to the permitted state:

[0066] 1. In side impact protection zone 1, there is no intrusion into the non-bypassable area.

[0067] 2. In side impact protection zone 1, there is no intrusion into the bypassable area. Alternatively, there is intrusion into the bypassable area, but the intrusion does not occur before the bypass path intrusion in the current side impact protection zone 2.

[0068] Otherwise, the RMU sets the side impact protection zone 2 to the restricted state.

[0069] The bypass mechanism is designed to solve the following problem: the train's "automatic train protection area" covers the bypassable area corresponding to the side impact protection area 1. When a normal train passes through the side impact protection area 2, the train presses into the secondary detection equipment section of the switch area. The secondary detection equipment in the switch area is occupied, causing the system to determine that there is an intrusion in the side impact protection area 1, resulting in an abnormal detection, making it impossible for the train to pass through the side impact protection area 1 normally, affecting the system's availability.

[0070] State management of side impact protection resources, such as Figure 6As shown, when the above allocation conditions are met, the target running side impact protection area 2 applied for will jump from the idle state to the allocated state. If the current cycle calculates that the side impact protection area 2 is in the permitted state or the resources of the side impact protection area 2 are not blocked by the operation, the side impact protection area 2 will jump from the allocated state to the authorized state, allowing the resource applicant to pass through the side impact protection area 2. If the current cycle calculates that the side impact protection area 2 is in the restricted state or the resources of the side impact protection area 2 are blocked by the operation, the side impact protection area 2 will jump from the authorized state to the unauthorized state, prohibiting the resource applicant from passing through the side impact protection area 2. If the current cycle calculates that the state of the side impact protection area 2 is restored to the permitted state or the resources of the side impact protection area 2 are unblocked by the operation, the side impact protection area 2 will jump from the unauthorized state to the authorized state. If the "train automatic protection" of the resource applicant has left the side impact protection area 2, or all secondary detection equipment intervals within the side impact protection area 2 are cleared, or the resource applicant actively releases the resources of the side impact protection area 2, the side impact protection area 2 will jump from the authorized state to the idle state. If the resource applicant actively releases the resources of Side Impact Protection Area 2, and the current Side Impact Protection Area status is allocated or deauthorized, the original state will jump to the Idle state. When the state jumps to the Idle state, the RMU will release the resources of Side Impact Protection Area 2, clear the locking direction of Side Impact Protection Area 2, unlock Turnout 1, and remove the restriction on its entry into Side Impact Protection Area 1.

[0071] The above is an introduction to a method embodiment. The following further illustrates the solution of the present invention through an electronic device and a storage medium embodiment.

[0072] An embodiment of the present invention further provides an electronic device including a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or computer program instructions loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0073] Many components in a device are connected to the I / O interface, including: input units, such as a keyboard and mouse; output units, such as various types of displays and speakers; storage units, such as magnetic disks and optical disks; and communication units, such as network cards, modems, and wireless communication transceivers. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunication networks.

[0074] The processing unit performs the various methods and processes described above, such as the inventive method. For example, in some embodiments, the inventive method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the inventive method described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the inventive method by any other appropriate means (e.g., by means of firmware).

[0075] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.

[0076] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. Such program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0077] In the context of the present invention, machine-readable medium can be a tangible medium that can contain or store a program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0078] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A side impact protection method based on line resource management, characterized in that: The method uses dual occupancy calculation intrusion of secondary detection equipment and automatic train protection, and manages side impact protection resources from the perspective of resource management. The side impact protection method includes: Step S1: The resource management unit RMU applies for resources in the side impact protection area; Step S2: The resource management unit RMU performs intrusion management on resources in the side impact protection area; Step S3: The resource management unit RMU performs status management on the resources in the side impact protection area; The application for the side impact protection resource in step S1 includes an application for isolated side impact protection area resources and an application for overlapping side impact protection area resources; The isolated side impact protection area resource application satisfies the set conditions, and the running side impact protection area applied for is in the allowed state at the time of application. The resource management unit RMU marks the applied side impact protection resource as allocated, locks the switch position and marks the locking direction of the side impact protection area; In addition to meeting the conditions for applying for isolated side impact protection area resources, the overlapping side impact protection area resource application must also meet the following additional requirements: the locking directions of the two overlapping side impact protection areas are in the same direction; if one of the side protection area resources is applied for, the other overlapping side protection area has been allocated, and the locking direction of the overlapping area is opposite to the current application direction, the RMU will not allocate the currently applied side impact protection area.

2. A side impact protection method based on line resource management according to claim 1, characterized in that: The setting condition is to meet any of the following conditions: S11) The switch associated with the side impact protection area applied for is not locked; S12) The switch locking position is consistent with the switch position in the side impact protection application, and the direction of use of the side impact protection resources applied for is consistent with the existing locking direction of the side impact protection area.

3. The side impact protection method based on line resource management according to claim 1, characterized in that: In step S2, if the following conditions are met simultaneously, the RMU sets the side impact protection area on the current side to the allowed state; otherwise, it sets it to the restricted state: S21) There is no intrusion into the non-bypassable area in the opposite side impact protection area; S22) There is no intrusion into the bypassable area in the opposite side impact protection area; or, there is intrusion into the bypassable area, but the intrusion does not occur before the intrusion into the bypass path of the current side impact protection area.

4. A side impact protection method based on line resource management according to claim 3, characterized in that: The non-bypassable area is the part of the side impact protection area that is not within the range of the same secondary detection equipment of the turnout; The bypassable area is a portion of the side impact protection area that is within the range of the same secondary detection equipment of the corresponding turnout; The bypass travel path is the area within the range of the secondary detection equipment of the turnout to which the current side impact protection area belongs, excluding the area included in the opposite side impact protection area.

5. The side impact protection method based on line resource management according to claim 3, characterized in that: Specifically, the intrusion is as follows: if a physical area is spatially covered by the "Automatic Train Protection" area and its associated secondary detection equipment detects occupancy, then there is an intrusion in the physical area.

6. The side impact protection method based on line resource management according to claim 1, characterized in that: In step S3, when the train applies for an allocated side impact protection area on the travel path, and the status of the side impact protection area calculated in step S2 is permitted, the status is transitioned to authorized in the current cycle, allowing the train to pass through the area; If the state calculated in step S2 of the current cycle is a restricted state or the resources in the area are blocked, the state of the current cycle will be transitioned to cancel authorization, prohibiting the driving permit to pass through the area.

7. A side impact protection method based on line resource management according to claim 6, characterized in that: After a train obtains authorization for the area and passes through it according to the driving permit, when its "train automatic protection" leaves the area, the RMU will release the applied side impact protection area, set the status to idle, unlock the associated switches, and clear the locking direction of the side impact protection area.

8. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 1 to 7 is implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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