CN115973231A - Method, device and storage medium for switching control rights when connecting trains turn back - Google Patents

Abstract

The present invention relates to a method, device and storage medium for switching control rights when a connected train turns back. The method includes the following steps: Step A: offline configuration of the VOBC statically associated with the train unit TU; Step B: checking the sending position of the VOBC The validity of the message, if it is legal, then record the message, otherwise directly discard the message; Step C: Combining the activation terminal state and the return state field in the VOBC position information to determine the VOBC dynamically associated with the single train unit TU and the VOBC Whether it is the master control train; Step D: Combining the states of all TUs in the train formation to determine the master control train in the formation. Compared with the prior art, the present invention has the advantages of being able to effectively solve the problem of switching the control right of the coupled train when turning back.

Description

Method, device and storage medium for switching control rights when connecting trains turn back

technical field

The invention relates to a train signal control system, in particular to a method, device and storage medium for switching control rights when a connected train turns back.

Background technique

There are two cases in which the head and tail CCs (vehicle controllers) share the safety connection and the head and tail CCs do not share the safety connection during the turn-back process of the train.

In the case where the head and tail end CCs share a secure connection, CC exposes one IP on the red and blue networks, and ZC exposes one IP on the red and blue networks respectively, and both parties establish a secure connection, and redundant messages are transmitted on the red and blue networks IP to red network IP, blue network IP to blue network IP); the first and last CC share a VID.

Under the condition that the head and tail CCs do not share a secure connection, the head and tail CCs of the vehicle use different IDs, and each exposes an IP on the red and blue networks; the trackside ZC exposes an IP on the red and blue networks. During the turn-back process, the CC at the rear of the vehicle registers with the ZC (Zone Controller) to establish a safe connection. At this time, CC1 and 2 communicate with ZC at the same time, each maintaining a secure connection. After the terminal switching is completed, CC1 logs off the connection with ZC, and only keeps the connection of CC2 (compared with before the switchback, the red and blue network IP addresses of the on-board equipment communicating with ZC have switched). The first and last CCs use different identification VIDs.

For the turn-back of a single train unit that shares the safe connection of the head and tail CCs; 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 the ZC, so there is no problem of switching control rights;

For the reentry of the unit of the combined train when the head and tail CCs share the safety connection, the reentry of the unit of the single train when the head and tail CCs do not share the safety connection, and the reentry of the unit of the connected train or CCs of different structures when the head and tail CCs do not share the safety connection There is a case where multiple CCs and ZCs communicate with each other in a train formation, and the ZC needs to combine the reentry process to screen out the main control train to realize the switching of the control right of the train.

Contents of the invention

The object of the present invention is to provide a control right switching method, equipment and storage medium for overcoming the defects of the above-mentioned prior art, which can effectively solve the control right switching problem of the connecting train when turning back. .

The purpose of the present invention can be achieved through the following technical solutions:

According to a first aspect of the present invention, there is provided a method for switching control rights when an attached train turns back, comprising the following steps:

Step A: configure the VOBC statically associated with the train unit TU offline;

Step B: check the legality of the position message sent by VOBC, if legal, then record the message, otherwise directly discard the message;

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 active terminal state and the return state field in the VOBC position information;

Step D: Combining the states of all TUs in the train formation to determine the master train in the formation.

As a preferred technical solution, in the step A, the offline configuration train unit TU is statically associated with two VOBCs, VOBC1 and VOBC2, respectively. For the TUs whose head and tail end CCs share a secure connection, they need to be associated with valid VOBC1, and VOBC2 is set to Invalid; for TUs whose head and tail CCs do not share a security connection, valid VOBC1 and VOBC2 need to be associated.

As a preferred technical solution, in the step B, the validity of the location information is checked in accordance with the interface specification with a single VOBC as a unit, the illegal messages are discarded, and the legal messages are updated to the VOBC.

As a preferred technical solution, if the position information corresponding to the VOBC1 and VOBC2 associated with the train unit TU is not available in the step C, then whether the VOBC associated with the TU and the VOBC are the result of the previous cycle calculation for the master train.

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 the TU is associated with the VOBC whose position information is available, and if the VOBC is activated, the VOBC is the master vehicle.

As a preferred technical solution, in step C, if both VOBC1 and VOBC2 information associated with the train unit TU are available, and neither VOBC is activated, then the VOBC associated with the TU uses the result calculated in the previous period, and both VOBCs are in from the end.

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 both are in the AR state or are not in the AR state, then the VOBC associated with the TU uses the last cycle As a result of the calculation, both VOBCs are at the slave end, and the AR state is the switchback state.

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

As a preferred technical solution, in the step C, if the VOBC1 and VOBC2 information associated with the train unit TU are all available, and the two VOBCs are all activated, but only one VOBC is in the AR state, then the TU is associated with the VOBC in the AR state; The VOBC is the master, and the VOBC that is not in the AR state is the slave, and the AR state is the switchback state.

As a preferred technical solution, in the step D, for all TUs in the marshalling train, if there is only one TU associated with the VOBC and it is the master train of the TU, then it is considered that the VOBC is the master end of the master train, and the others are all for the slave side.

According to a second aspect of the present invention, an electronic device is provided, including a memory and a processor, the memory stores a computer program, and the processor implements the method when executing the program.

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 is implemented.

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

1) For connected trains, it is not only suitable for connected trains with CCs of the same structure. For example, two connected train units are equipped with the same CC with shared safety connections from the end to the end, or both are equipped with non-shared CCs. The securely connected CC is also suitable for the connection between trains with different CC structures

2) The present invention is not only applicable to the screening of the main control train during the train turn-back process, but also applicable to the non-turn-back process.

Description of drawings

Figure 1 is a schematic diagram of the turn-back of the coupled train with the head and tail CCs not sharing the safety connection - the schematic diagram of the turn-in stage (two VOBCs communicate with ZC, and activate CAB1 whose cab is TU1);

Figure 2 is a schematic diagram of the turn-back of the coupled train with the head and tail CC not sharing the safety connection - the schematic diagram of the turn-back and terminal change stage (4VOBC communicates with ZC at the same time, and activates CAB1 of TU1 and CAB4 of TU2);

Fig. 3 is a schematic diagram of the turn-back of the double-hook train with the safety connection shared by the head and tail CCs - the schematic diagram of the turn-out stage (2VOBC and ZC communication, the activated cab is CAB2 of TU2);

Fig. 4 is a specific flowchart of the method of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. 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 persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

For the reentry of the unit of the combined train when the head and tail CCs share the safety connection, the reentry of the unit of the single train when the head and tail CCs do not share the safety connection, and the reentry of the unit of the connected train or CCs of different structures when the head and tail CCs do not share the safety connection There is a case where multiple CCs and ZCs communicate with each other in a train formation, and the ZC needs to combine the reentry process to screen out the main control train to realize the switching of the control right of the train.

Aiming at the above problems, the present invention provides a method for switching the control right of the connected train when turning back, which can effectively solve the problem of switching the control right of the connected train when turning back. The method specifically includes the following steps as shown in Figure 4:

Step A: Offline configuration of the VOBC of the static shutdown of the train unit TU;

Step B: check the legality of the position message sent by VOBC, if legal, then record the message, otherwise directly discard the message;

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 active terminal state and the return state field in the VOBC position information;

Step D: Combining the states of all TUs in the train formation to determine the master train in the formation.

In step A, the offline configuration train unit TU is statically associated with two VOBCs, namely VOBC1 and VOBC2. For the TU whose head and tail end CCs share a security connection, it needs to be associated with valid VOBC1, and at the same time set VOBC2 to be invalid; for the head and tail CCs, the safety connection is not shared The TU must be associated with valid VOBC1 and VOBC2.

Check the legitimacy of the location message sent by the VOBC in the step B. Check the legitimacy of the location information in units of a single VOBC according to the interface specification, discard the illegal message, and update the legal message to the VOBC.

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

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

In step C, if both the VOBC1 and VOBC2 information associated with the train unit TU are available, and neither VOBC is activated, the VOBC associated with the TU uses the result calculated in the previous period, and both VOBCs are at the slave end.

In step C, if the VOBC1 and VOBC2 information associated with the train unit TU are both available, and both VOBCs are activated and both are in the AR state or are not in the AR state, then the VOBC associated with the TU uses the result calculated in the previous cycle, and both VOBCs are in the AR state. from the end.

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

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

In step D, for all TUs in the marshalling train, if there is only one TU associated with a VOBC and it is the master train of the TU, then the VOBC is considered to be the master of the master train, and the others are slaves.

The following is a further explanation based on the reentry process of the combined train where the first and last CCs do not share a safety connection:

As shown in Figure 1, in the fold-in stage, TU1 has an activated cab and is the fold-in end; TU2 has no active cab and is the fold-out end. In this stage, VOBC1 of TU1 sends to ZC the existence activation terminal in the "train position information" of this TU. VOBC3 of TU2 sends to ZC that there is no active terminal in the "train position information" of this TU. According to the above scheme, TU1 is associated with VOBC1 as the main control car, TU2 is associated with VOBC2 as the non-master control car, and there is only one VOBC1 corresponding to TU1 as the main control car in the train formation, so the master control train of the entire formation is VOBC1. ZC sends a "train control information" packet to the master train VOBC1; ZC sends a "special control message" packet to the slave train VOBC3 to maintain the link. When the train comes to a complete stop at the turn-back parking point, the turn-in stage ends

As shown in Figure 2, in the stage of turning back and switching terminals, ZC maintains communication with VOBC1, VOBC2, VOBC3 and VOBC4 at the same time, wherein VOBC2 and VOBC4 send the "Train Position Information" of the TU in which the "turnback state" is "AR state"; VOBC1 judges Before meeting the relevant conditions to deactivate the cab and log out, you need to ensure that ZC receives VOBC4 cab activation and is in the AR state. According to this technical solution, TU1 is associated with VOBC1 and is the main control car, and TU2 is associated with VOBC4 and is the main control car according to the state of the activation terminal. There are two main control cars in the marshalling train, so VOBC1, VOBC2, VOBC3 and VOBC4 are from the car. At this stage, ZC sends special control messages to the four VOBCs of the two trains. When VOBC1 judges that the relevant conditions are met to deactivate the cab and log off, according to this technical solution, firstly, according to the status of the activation terminal, it can be screened out that TU1 is associated with VOBC1 and is a non-master car, TU2 is associated with VOBC4 and is a master car, and there is a The main control car VOBC4 is in the fold-out stage.

In the fold-out stage, VOBC1 and VOBC3 send a logout request to ZC, disconnect the connection with ZC, the cab of TU2 is activated, and TU1 does not activate the cab. As shown in Figure 3, this stage is similar to the fold-in stage. According to this technical solution, ZC Switch the master control train to VOBC4, the slave train to VOBC2, and the VOBC4 of TU2 to control the train according to the movement authorization of ZC, and leave the turning area.

The above is the introduction of the method embodiments, and the solution of the present invention will be further described below through the embodiments of the electronic device and the storage medium.

The electronic device of the present invention includes a central processing unit (CPU), which can execute various Appropriate action and handling. In RAM, various programs and data necessary for device operation can also be stored. The CPU, ROM, and RAM are connected to each other through a bus. Input/output (I/O) interfaces are also connected to the bus.

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 magnetic disks, optical discs, etc.; and communication units, Such as network card, modem, wireless communication transceiver, etc. The communication unit allows the device to exchange information/data with other devices over a computer network such as the Internet and/or various telecommunication networks.

The processing unit executes the various methods and processes described above, such as the method of the present invention. For example, in some embodiments, the inventive method can be implemented as a computer software program tangibly embodied on a machine-readable medium, such as a memory unit. In some embodiments, part or all of the computer program may be loaded and/or installed on the device via a ROM and/or a communication unit. One or more steps of the inventive method described above may be performed when the computer program is loaded into RAM and executed by the CPU. Alternatively, in other embodiments, the CPU may be configured to execute the method of the present invention in any other suitable manner (eg, by means of firmware).

The functions described herein above 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), System on Chips (SOCs), Complex Programmable Logical device (CPLD) and so on.

Program codes for implementing the methods of the present invention may 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 devices, so that the program codes, when executed by the processor or controller, make the functions/functions specified in the flow diagrams and/or block diagrams Action is implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

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, apparatus, or device. 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, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media would include one or more wire-based electrical connections, portable computer disks, hard disks, Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable Read Only Memory (EPROM or flash memory), optical fiber, compact disk read only memory (CD-ROM), optical storage, magnetic storage, or any suitable combination of the foregoing.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalents within the technical scope disclosed in the present invention. Modifications or replacements shall all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (12)

1. A control right switching method for a retracing train is characterized by comprising the following steps:

step A: configuring a VOBC statically associated with a TU of the train unit off line;

and B, step B: checking the legality of the position message sent by the VOBC, if the position message is legal, recording the message, otherwise, directly discarding the message;

step C: determining the VOBC dynamically associated with the unit TU of the single train and whether the VOBC is a master control train or not by combining the activating end state and the turning state field in the VOBC position information;

step D: and determining a master control train in the train formation according to the states of all TUs in the train formation.

2. The method according to claim 1, wherein the off-line configuration of the train unit TU in step a statically associates two VOBCs, namely VOBC1 and VOBC2, and for a TU with a common safety connection between the CC at the head and the CC at the tail, needs to associate a valid VOBC1 and set the VOBC2 as invalid; for TUs whose head CC and tail CC do not share a secure connection, valid VOBC1 and VOBC2 need to be associated.

3. The method for switching control right when a linked train is turned back according to claim 1, wherein in step B, the validity of the position information is checked according to the interface specification in units of a single VOBC, the illegal messages are discarded, and the valid messages are updated to the VOBC.

4. The method according to claim 1, wherein in step C, if the position information corresponding to the VOBC1 and VOBC2 associated with the train unit TU is not available, the VOBC associated with the TU and whether the VOBC is a result of the last cycle calculation used by the master control train.

5. The method of claim 1, wherein in step C, if only one of the VOBC1 and VOBC2 position information associated with the train unit TU is available, the TU associates the VOBC whose position information is available, and if the VOBC is active, the VOBC is the master train.

6. The method of claim 1, wherein in step C, if both VOBC1 and VOBC2 information associated with a train unit TU are available and neither VOBC is active, then the VOBC associated with the TU uses the result of the last period calculation, and both VOBCs are at the slave.

7. The method according to claim 1, wherein in step C, if both VOBC1 and VOBC2 information associated with a train unit TU are available, and both VOBCs are activated and are in the AR state or are not in the AR state, the VOBC associated with TU uses the result of the last cycle calculation, and both VOBCs are in the slave side, where the AR state is the return state.

8. The method according to claim 1, wherein in step C, if the VOBC1 and VOBC2 information associated with a train unit TU are both available and only one VOBC is active, the TU associates the active VOBC, the active VOBC is the master and the inactive VOBC is the slave.

9. The method of claim 1, wherein in step C, if both VOBC1 and VOBC2 information associated with a train unit TU are available, both VOBCs are active, but only one VOBC is in the AR state, then the TU associates the VOBC in the AR state; the VOBC in the AR state is the master, and the VOBC not in the AR state is the slave, wherein the AR state is the return state.

10. The method according to claim 1, wherein in step D, for all TUs in a train consist, if only one TU is associated with a VOBC and is a master train of the TU, the VOBC is considered as a master train, and the other TUs are slave trains.

11. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the processor, when executing the program, implements the method of any one of claims 1-10.

12. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 10.

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