Control right switching method, device and storage medium for connecting trains when turning back

Abstract

The present invention relates to a control right switching method, device and storage medium for the reversal of coupled trains, the method comprising the following steps: step A: offline configuration of the VOBC statically associated with the train unit TU; step B: checking the legality of the position message sent by the VOBC, if legal, recording the message, otherwise directly discarding the message; step C: combining the activation end state and the reversal state field in the VOBC position information to determine the VOBC dynamically associated with the single train unit TU and whether the VOBC is the main control vehicle; step D: combining the states of all TUs in the train formation to determine the main control train in the formation. Compared with the prior art, the present invention has the advantages of being able to effectively solve the control right switching problem of coupled trains when they are reversing.

Description

Technical Field

[0001] The invention relates to a train signal control system, and in particular to a control right switching method, equipment and storage medium for when a coupled train turns back. Background Art

[0002] The train return process is divided into two situations: the head and tail CCs (on-board controllers) share a safety connection and the head and tail CCs do not share a safety connection.

[0003] When the head and tail CCs share a secure connection, CC exposes one IP on the red network and one IP on the blue network, and ZC exposes one IP on the red network and one IP on the blue network. The two parties establish a secure connection, and redundant messages are transmitted on the red and blue networks respectively (red network IP to red network IP, blue network IP to blue network IP); the head and tail CCs share one VID.

[0004] When the head and tail CCs do not share a security connection, the onboard head and tail CCs use different IDs, and each exposes one IP on the red and blue networks; the trackside ZC exposes one IP on the red and blue networks. During the turnaround process, the tail CC newly registers and establishes a security connection with the ZC (zone controller). At this time, CC1 and 2 communicate with the ZC at the same time, each maintaining a security connection. After the end switch is completed, CC1 cancels the connection with the ZC and only retains the connection with CC2 (compared with before the turnaround, the red and blue network IP addresses of the onboard equipment communicating with the ZC have switched). The head and tail CCs use different identification VIDs.

[0005] For a single train, the CCs at the head and tail share a common safety connection for the return of a single train unit; since the head and tail CCs share a VID, there is no need to distinguish the master-slave status of the head and tail for ZC, so there is no problem of switching control rights;

[0006] For the reversal of coupled train units when the head and tail CCs share a common safety connection, the reversal of single train units when the head and tail CCs do not share a common safety connection, and the reversal of coupled train units when the head and tail CCs do not share a common safety connection, or the coupling of trains with CCs of different structures, there is a situation where multiple CCs and ZCs communicate simultaneously in one train formation. The ZC needs to select the master control train in combination with the reversal process to realize the switching of train control rights. Summary of the invention

[0007] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a method, device and storage medium for switching control rights when a coupled train turns around, which can effectively solve the problem of switching control rights when a coupled train turns around.

[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, there is provided a method for switching control rights when a coupled train turns back, comprising the following steps:

[0010] Step A: Offline configuration of VOBC statically associated with train unit TU;

[0011] Step B: Check the legitimacy of the location message sent by VOBC. If it is legal, record the message; otherwise, discard the message directly.

[0012] Step C: Determine the VOBC dynamically associated with the single train unit TU and whether the VOBC is the master control vehicle in combination with the activation end status and the return status field in the VOBC position information;

[0013] Step D: Determine the master control train in the train set based on the status of all TUs in the train set.

[0014] As a preferred technical solution, in step A, the offline configuration train unit TU is statically associated with two VOBCs, namely VOBC1 and VOBC2. For TUs with a shared security connection between the head and tail CCs, a valid VOBC1 needs to be associated, and VOBC2 is set to invalid. For TUs with a non-shared security connection between the head and tail CCs, a valid VOBC1 and VOBC2 need to be associated.

[0015] As a preferred technical solution, in step B, the legitimacy of the location information is checked in units of single VOBC according to the interface specification, illegal messages are discarded, and legal messages are updated to the VOBC.

[0016] As a preferred technical solution, in the step C, if the position information corresponding to VOBC1 and VOBC2 associated with the train unit TU is unavailable, the VOBC associated with TU and whether the VOBC is the result of the previous cycle calculation used by the master control vehicle are used.

[0017] As a preferred technical solution, in step C, if only one of the VOBC1 and VOBC2 position information associated with the train unit TU is available, then TU is associated with the VOBC with available position information. If the VOBC is activated, then the VOBC is the master control vehicle.

[0018] As a preferred technical solution, in step C, if the VOBC1 and VOBC2 information associated with the train unit TU is available and both VOBCs are not activated, the VOBC associated with the TU uses the result calculated in the previous cycle, and both VOBCs are at the slave end.

[0019] As a preferred technical solution, in step C, if the VOBC1 and VOBC2 information associated with the train unit TU are available, and both VOBCs are activated and in the AR state or not in the AR state, the VOBC associated with the TU uses the result calculated in the previous cycle, and both VOBCs are in the slave end, where the AR state is the return state.

[0020] As a preferred technical solution, in step C, if the VOBC1 and VOBC2 information associated with the train unit TU are both available and only one VOBC is activated, then TU is associated with the activated VOBC, the activated VOBC is the master end, and the inactivated VOBC is the slave end.

[0021] As a preferred technical solution, in step C, if the VOBC1 and VOBC2 information associated with the train unit TU are both available, both VOBCs are activated, but only one VOBC is in AR state, then TU is associated with the VOBC in AR state; the VOBC in AR state is the master end, and the VOBC not in AR state is the slave end, wherein the AR state is the return state.

[0022] As a preferred technical solution, in step D, for all TUs in the marshaling train, if there is only one TU associated with VOBC and it is the master control train of the TU, then the VOBC is considered to be the master end of the master control train, and the others are slave ends.

[0023] 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.

[0024] 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.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1) For coupled trains, it is not only applicable to the coupling between trains with the same CC structure, such as the two coupled train units are both equipped with the same CC with common head and tail safety connection, or both are equipped with CC with non-common safety connection, but also applicable to the coupling between trains with different CC structures.

[0027] 2) The present invention is not only applicable to the selection of the master control train during the train reversal process, but is also applicable to the non-reversal process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1Schematic diagram of the turnaround of the coupled train with the first and last CCs not sharing a safety connection - Schematic diagram of the turnaround phase (two VOBCs communicate with the ZC, and the activated cab is CAB1 of TU1);

[0029] Figure 2 Schematic diagram of the reversal of the coupled train with the first and last CCs not sharing the safety connection - Schematic diagram of the reversal and end-changing stage (4VOBC communicates with ZC at the same time, activating the driving cabs CAB1 of TU1 and CAB4 of TU2);

[0030] Figure 3 Schematic diagram of the turnaround phase of the coupled train with common safety connection between the first and last CCs (2VOBC and ZC communication, the activated cab is CAB2 of TU2);

[0031] Figure 4 It is a specific flow chart of the method of the present invention. DETAILED DESCRIPTION

[0032] 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.

[0033] For the reversal of coupled train units when the head and tail CCs share a common safety connection, the reversal of single train units when the head and tail CCs do not share a common safety connection, and the reversal of coupled train units when the head and tail CCs do not share a common safety connection, or the coupling of trains with CCs of different structures, there is a situation where multiple CCs and ZCs communicate simultaneously in one train formation. The ZC needs to select the master control train in combination with the reversal process to realize the switching of train control rights.

[0034] The present invention aims at the above-mentioned problem and provides a method for switching the control right of a coupled train when it turns back, which can effectively solve the problem of switching the control right of a coupled train when it turns back. Figure 4 The specific steps shown include:

[0035] Step A: Offline configuration of VOBC of statically closed train unit TU;

[0036] Step B: Check the legitimacy of the location message sent by VOBC. If it is legal, record the message; otherwise, discard the message directly.

[0037] Step C: Determine the VOBC dynamically associated with the single train unit TU and whether the VOBC is the master control vehicle in combination with the activation end status and the return status field in the VOBC position information;

[0038] Step D: Determine the master control train in the train set based on the status of all TUs in the train set.

[0039] In step A, the offline configuration train unit TU statically associates two VOBCs, namely VOBC1 and VOBC2. For the TUs that share a security connection between the head and tail CCs, a valid VOBC1 needs to be associated, and VOBC2 is set to invalid. For the TUs that do not share a security connection between the head and tail CCs, a valid VOBC1 and VOBC2 need to be associated.

[0040] In step B, the legitimacy of the location message sent by the VOBC is checked. The legitimacy of the location information is checked in units of a single VOBC according to the interface specification, illegal messages are discarded, and legal messages are updated to the VOBC.

[0041] In step C, if the position information corresponding to VOBC1 and VOBC2 associated with the train unit TU is unavailable, the VOBC associated with TU and whether the VOBC is the result of the previous cycle calculation for the master vehicle;

[0042] In step C, if only one of the position information of VOBC1 and VOBC2 associated with the train unit TU is available, then TU is associated with the VOBC with available position information. If the VOBC is activated, the VOBC is the master control vehicle.

[0043] In step C, if the information of VOBC1 and VOBC2 associated with the train unit TU is available and both VOBCs are inactive, the VOBC associated with TU uses the result calculated in the previous cycle, and both VOBCs are at the slave end.

[0044] In step C, if the information of VOBC1 and VOBC2 associated with the train unit TU is available, and both VOBCs are activated and in the AR state or are not in the AR state, the VOBC associated with TU uses the result calculated in the previous cycle, and both VOBCs are at the slave end.

[0045] In step C, if the VOBC1 and VOBC2 information associated with the train unit TU are both available and only one VOBC is activated, then TU is associated with the activated VOBC, the activated VOBC is the master end, and the inactivated VOBC is the slave end.

[0046] In step C, if the information of VOBC1 and VOBC2 associated with the train unit TU is available, both VOBCs are activated, but only one VOBC is in AR state (return state), then TU associates the VOBC in AR state. The VOBC in AR state is the master end, and the VOBC not in AR state is the slave end.

[0047] In step D, for all TUs in the marshaling train, if there is only one TU associated with VOBC and it is the master control train of the TU, then the VOBC is considered to be the master end of the master control train, and the others are slave ends.

[0048] The following is a further explanation of the turnaround process for coupled trains where the first and last CCs do not share a safety connection:

[0049] like Figure 1 As shown, in the folding-in phase, TU1 has an activated cab and is the folding-in end; TU2 does not have an activated cab and is the folding-out end. In this phase, VOBC1 of TU1 sends the activated end in the "train location information" of this TU to ZC. VOBC3 of TU2 sends the activated end in the "train location information" of this TU to ZC. According to the above scheme, TU1-associated VOBC1 can be screened out as the master control car, and TU2-associated VOBC2 can be screened out as the non-master control car. There is only one VOBC1 corresponding to TU1 in the train formation as the master control car, so the master control train of the entire formation is VOBC1. ZC sends a "train control information" package to the master control train VOBC1; ZC sends a "special control message" package to the slave car VOBC3 to maintain the link. When the train stops accurately and steadily at the turning point, the folding-in phase ends.

[0050] like Figure 2 As shown in the figure, in the reversing and switching phase, ZC maintains communication with VOBC1, VOBC2, VOBC3 and VOBC4 at the same time, wherein the "reversing state" in the "train position information" sent by VOBC2 and VOBC4 is "AR state"; before VOBC1 determines that the relevant conditions are met to deactivate the cab and log out, it is necessary to ensure that ZC receives the activation of VOBC4 cab and is in AR state. According to the technical solution, TU1 associated with VOBC1 and is the master car, TU2 associated with VOBC4 and is the master car can be firstly screened out according to the state of the activation end, and TU1 is associated with VOBC1 and is the master car. There are two master cars in the marshaling train, so VOBC1, VOBC2, VOBC3 and VOBC4 are all slave cars. In this phase, ZC sends special control messages to all four VOBCs of the two trains. After VOBC1 determines that the relevant conditions are met to deactivate the cab and log out, according to the technical solution, TU1 associated with VOBC1 and is the non-master car can be firstly screened out according to the state of the activation end, and TU2 is associated with VOBC4 and is the master car. There is one master car VOBC4 in the marshaling train, and then the reversing phase is entered.

[0051] In the fold-out phase, VOBC1 and VOBC3 send a logout request to ZC to disconnect from ZC. TU2's cab is activated, but TU1 does not activate the cab. Figure 3This stage is similar to the fold-in stage. According to the technical solution, ZC switches the master train to VOBC4, and the slave train is VOBC2. VOBC4 of TU2 controls the train according to the mobile authorization of ZC and leaves the turning area.

[0052] 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.

[0053] The electronic device of the present invention includes 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 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.

[0054] 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.

[0055] 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).

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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 control right switching method for a coupled train when turning back, characterized in that: The following steps are involved: Step A: Offline configuration of VOBC statically associated with train unit TU; Step B: Check the legitimacy of the location message sent by VOBC. If it is legal, record the message; otherwise, discard the message directly. Step C: Determine the VOBC dynamically associated with the single train unit TU and whether the VOBC is the master control vehicle in combination with the activation end status and return status fields in the VOBC position information; Step D: Determine the master control train in the train formation based on the status of all TUs in the train formation; In the step A, the offline configuration train unit TU statically associates two VOBCs, namely VOBC1 and VOBC2. For the TU with a shared safety connection between the head and tail VOBCs, a valid VOBC1 needs to be associated, and VOBC2 is set to be invalid; for the TU with a shared safety connection between the head and tail VOBCs, a valid VOBC1 needs to be associated with the TU. In the step C, if the position information corresponding to VOBC1 and VOBC2 associated with the train unit TU is unavailable, the VOBC associated with the TU and whether the VOBC is the result of the previous cycle calculation for the master vehicle; In the step C, if only one of the position information of VOBC1 and VOBC2 associated with the train unit TU is available, then TU is associated with the VOBC with available position information, and if the VOBC is activated, then the VOBC is the master control vehicle; In the step C, if the information of VOBC1 and VOBC2 associated with the train unit TU is available and both VOBCs are not activated, the VOBC associated with TU uses the result calculated in the previous cycle, and both VOBCs are at the slave end; In the step C, if the information of VOBC1 and VOBC2 associated with the train unit TU is available, and both VOBCs are activated and in the AR state or are not in the AR state, the VOBC associated with the TU uses the result calculated in the previous cycle, and both VOBCs are in the slave end, where the AR state is the return state; In the step C, if the VOBC1 and VOBC2 information associated with the train unit TU are both available and only one VOBC is activated, then the TU is associated with the activated VOBC, the activated VOBC is the master end, and the inactivated VOBC is the slave end; In the step C, if the VOBC1 and VOBC2 information associated with the train unit TU are both available, both VOBCs are activated, but only one VOBC is in the AR state, then TU is associated with the VOBC in the AR state; the VOBC in the AR state is the master end, and the VOBC not in the AR state is the slave end, where the AR state is the return state.

2. A control right switching method for a coupled train when turning back according to claim 1, characterized in that: In the step B, the legitimacy of the location information is checked in accordance with the interface specification on a single VOBC basis, illegal messages are discarded, and legal messages are updated to the VOBC.

3. A control right switching method for a coupled train when turning back according to claim 1, characterized in that: In the step D, for all TUs in the marshaling train, if there is only one TU associated with VOBC and it is the master control train of the TU, then the VOBC is considered to be the master end of the master control train, and the others are slave ends.

4. 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 3 is implemented.

5. 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 3 is implemented.

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