Side impact protection method and device based on line resource management and medium

Abstract

The invention relates to a side impact protection method and device based on line resource management and a medium, according to the method, intrusion is calculated by adopting double occupancy of secondary detection equipment and train automatic protection, side impact protection resources are managed from the perspective of resource management, and the side impact protection method comprises the steps that S1, a secondary detection device and a train automatic protection device are included; a resource management unit RMU applies for resources of the side impact protection area; s2, a resource management unit RMU performs intrusion management on resources in the side impact protection area; and S3, the resource management unit RMU performs state management on the resources of the side impact protection area. Compared with the prior art, the method has the advantages of ensuring the system accuracy, ensuring the availability of the system and the like.

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 interval 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 interval 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 detection points, secondary detection equipment, area controller, computer interlocking system and a safety communication system among these devices, wherein the secondary detection equipment is respectively connected to the detection point, the area controller and the computer interlocking system; 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 side impact protection of trains and a train control system, which specifically discloses that signal machines are not required to be set up on the trackside, and secondary train position detection equipment is not arranged. The traditional approach to centralized allocation and management of line resources within the approach is deleted, and the system processes the granularity of trackside line resources in a more refined manner. Based on the train operation plan, the line resources are allocated and released in an orderly and gradual manner, and the utilization efficiency of trackside line resources is maximized, thereby greatly shortening the train tracking interval.

[0006] However, the above-mentioned prior art generally has the problems of low safety and great 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 plus automatic train protection, and manages side impact protection resources from the perspective of resource management. The side impact protection method comprises:

[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 the 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 condition is to meet any of the following conditions:

[0016] S11) The turnout 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 applied side impact protection resource usage direction 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 defense area resources, the other overlapping side defense 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, when the intrusion occurs, there is also an intrusion on the bypass path of the side impact protection area on the current calculation side; otherwise, there cannot be an intrusion into the bypassable area.

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

[0023] The bypassable area is a part 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 part included in the opposite side impact protection area.

[0025] The side impact protection area of ​​the same turnout is divided into: the positioning side impact protection area and the reverse side impact protection area. The RMU periodically calculates whether there is an intrusion permission state for both according to the following method. The intrusion permission state of the side impact protection area on the current side is determined by the intrusion state on the opposite side.

[0026] As a preferred technical solution, the intrusion is specifically: 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.

[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 state of the side impact protection area calculated by step S2 is a permitted state, the state is transferred 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 vehicle from passing 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 "automatic train protection" leaves the area, the RMU will release the applied side impact protection area, set the status to idle, unlock the associated switch, and clear the locking direction of the side protection area.

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

[0031] According to a third aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program implements the method described above when executed by a processor.

[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 the perspective of resources, realizes the precise control of the driving permission of the side impact protection resources in the turnout area, belongs to the advance protection, and avoids the system actively 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 area resources and various resource state transition condition methods to ensure that the system will not allocate hostile resource states. When a 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.

[0035] 3) The present invention is based on the intrusion detection method of "automatic train 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-defense method, so that after a vehicle illegally enters the side impact protection area, normal trains are prohibited from passing through the side impact protection area, which reduces the impact on the driving of normal vehicles and improves the safety of the system;

[0037] 5) The bypass method designed in step S2 of the present invention ensures that normal vehicles are not blocked by mistake 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 It is a schematic diagram of the isolated side impact protection resource application of the present invention;

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

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

[0042] Figure 5 It is a schematic diagram of the intrusion rule of the present invention;

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

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

[0045] like Figure 1 As shown, the side impact protection method based on line resource management of the present invention adopts the dual occupancy calculation intrusion of secondary detection equipment plus train automatic protection, and manages the 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 the 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 problem of side impact protection under the framework of the RMU system. Based on line resource management, side impact protection area resources are proposed, and various resource status 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 breaks into the side impact protection area, the RMU system can respond to reduce the safety impact on normal driving. Based on the intrusion detection method of "automatic train protection" plus secondary detection equipment occupancy, the accuracy of the system is guaranteed while the availability of the system is guaranteed.

[0050] Application for side impact protection resources. RMU can process the resource application instructions for the side impact protection area from ATS or CC. The instructions cover information including: target side impact protection area identification and resource usage direction. After receiving the application, RMU determines that the requested resource is a legitimate resource application within its jurisdiction, and then continues to determine whether the resource can be allocated. It can be divided into two basic scenarios: isolated side impact protection area and overlapping side impact protection area resource application.

[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 for, the RMU calculates the associated turnout and the opposite side side impact protection area 2 according to the static configuration data, if:

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

[0053] 2. The associated turnout 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 illegal intrusion in the side impact protection zone 2. If there is no illegal intrusion, the side impact protection resources 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 side impact protection zone 2 on the opposite side is recorded as prohibited entry to prevent the side impact protection zone 2 from being allocated as a running side impact protection zone, and two vehicles are introduced into the side impact protection zone 1 and the side impact protection zone 2 at the same time, causing a collision accident.

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

[0057] The applied side impact protection area 1 overlaps with the side impact protection area 3. At this time, if the side impact protection area 3 has been allocated and the locking direction is opposite to the use direction of the applied side impact protection area 1, the 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 forbidden 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 forbidden.

[0060] Intrusion management of side impact protection resources and intrusion detection modeling of side impact protection areas 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 relationship between the position of the secondary detection device boundary and the side impact protection zone, the side impact protection zone 1 can be divided into a bypassable zone and a non-bypassable zone. Among them:

[0061] The bypassable area is a part of the side impact protection area 1 that is not within the scope 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 turnout 1 is located, and is an area obtained by excluding the partial area included in the opposite side impact protection area 1.

[0064] In the RMU system framework, "train automatic protection" is a tracking model of 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 fails. The present invention uses the "train automatic protection" coverage area, and the occupation of the secondary detection equipment interval associated with the area in the same physical space 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. When the project is implemented, the projection of the side impact protection area on the BLOCK section is used as the smallest physical area as the minimum judgment granularity unit for intrusion, which 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 collection of "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 at the same time, the RMU sets the side impact protection zone 2 to the allowed state:

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

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

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

[0069] The bypass mechanism is designed to solve the following problems: the "automatic train protection area" of the train 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 interval of the secondary detection equipment in 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 availability of the system.

[0070] Status 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 jumps 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 driving permit of the resource application object 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 driving permit of the resource application object 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 application object 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 application object 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 application object actively releases the resources of the side impact protection area 2, and the current side impact protection area status is allocated or the authorization is canceled, the original state jumps to the idle state. When the state jumps to the idle state, the RMU will release the resources of the side impact protection area 2, clear the locking direction of the side impact protection area 2, unlock the turnout 1, and lift the entry restriction on the side impact protection area 1.

[0071] The above is an introduction to the method embodiment. The following is a further explanation of the scheme of the present invention through electronic equipment and storage medium embodiments.

[0072] The embodiment of the present invention also 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] Multiple components in the device are connected to the I / O interface, including: input units, such as keyboards, mice, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices through 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 method of the present invention. For example, in some embodiments, the method of the present invention 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 method of the present invention described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the method of the present invention 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, 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 chips (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. These program codes 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 the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

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

[0078] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A side impact protection method based on line resource management, characterized in that: The method adopts the dual occupancy calculation intrusion of secondary detection equipment and automatic train protection, and manages the 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 the 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.

2. According to claim 1, a side impact protection method based on line resource management is characterized in that: 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.

3. According to claim 2, a side impact protection method based on line resource management is characterized in that: 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.

4. According to claim 3, a side impact protection method based on line resource management is characterized in that: The setting condition is to meet any of the following conditions: S11) The turnout associated with the side impact protection area applied for is not locked; S12) The switch locking position is consistent with the switch position applied for side impact protection, and the applied side impact protection resource usage direction is consistent with the existing locking direction of the side impact protection area.

5. According to claim 3, a side impact protection method based on line resource management is characterized in that: 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, 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.

6. A side impact protection method based on line resource management according to claim 1, characterized in that: 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: S21) There is no intrusion into the non-bypassable area in the opposite side impact protection area; S22) If there is an intrusion in the bypassable area in the side impact protection area on the opposite side, when the intrusion occurs, there is also an intrusion on the bypass path of the side impact protection area on the current calculation side; Otherwise, there must be no intrusion into the bypassable area.

7. A side impact protection method based on line resource management according to claim 6, characterized in that: The non-bypassable area is a part of the side impact protection area that is not within the scope of the same secondary detection equipment of the turnout; The bypassable area is a part 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 part included in the opposite side impact protection area.

8. According to claim 6, a side impact protection method based on line resource management is characterized in that: The intrusion specifically refers to: if a physical area is spatially covered by the "Automatic Train Protection" area and its associated secondary detection equipment detects occupancy, then there is intrusion in the physical area.

9. 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 the allocated side impact protection area on the running path, and the state of the side impact protection area calculated by step S2 is a permitted state, the state is transferred to authorized in the current cycle, and the driving permit is allowed 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 vehicle from passing through the area.

10. A side impact protection method based on line resource management according to claim 9, characterized in that: After the train obtains authorization for the area and passes through the area according to the driving permit, when its "automatic train protection" leaves the area, the RMU will release the applied side impact protection area, set the status to idle, unlock the associated turnout, and clear the locking direction of the side protection area.

11. 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 10 is implemented.

12. 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 10 is implemented.

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