CN116088406A

CN116088406A - Load simulation device, method, equipment and medium based on all-electronic interlocking interface

Info

Publication number: CN116088406A
Application number: CN202211740142.2A
Authority: CN
Inventors: 傅雪原; 查伟; 高东; 杜岳升; 奚佳培; 周建中
Original assignee: Casco Signal Ltd
Current assignee: Casco Signal Ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-09

Abstract

The invention relates to a load simulation device, a method, equipment and a medium based on an all-electronic interlocking interface, wherein the device uses simulation equipment to replace a real trackside device and forms a whole set of closed loop verification system with a train control system (TACS) of train communication, and the device comprises a trackside resource controller (WRC), an all-electronic interlocking target controller (ECID-OC), a relay box, a Programmable Logic Controller (PLC), a line simulator (LineSim) and a verification manager which are sequentially connected. Compared with the prior art, the invention has the advantages of controllable cost, high integration efficiency, expandability and the like.

Description

Load simulation device, method, equipment and medium based on all-electronic interlocking interface

Technical Field

The invention relates to a train signal control system, in particular to a load simulation device, method, equipment and medium based on an all-electronic interlocking interface.

Background

The TACS system is a development direction of the next generation of the train control system after the CBTC mobile communication signal system. The train control system for the communication TACS of the rail transit vehicles has the greatest advantage of flexibly managing the resources beside the rail, such as the occupied resources of the rail, the turnout resources, the switch of the shielding door and the like on the basis of ensuring the automatic and autonomous running of the trains. In the flexible management process of the trackside resources, the TACS adopts a full-electronic interlocking technology to control the trackside resources, has the characteristics of rapid and safe control and feedback, and can meet the flexible control of the trackside resources by the vehicle-to-vehicle communication TACS system.

Because the train-to-vehicle communication TACS system belongs to an emerging front technology in the rail transit industry, the adopted full-electronic interlocking needs to be subjected to a large number of tests in an environment simulating the real operation of a train as much as possible so as to verify the functional stability, the deployment efficiency and the operation safety of the device in the actual application. The verification mode commonly adopted in the industry at present is a test line for building a train-to-train communication TACS system, and the functional correctness and stability of the full-electronic interlocking are tested by running a train on a real track and interacting with real trackside equipment. The verification mode can restore the calculation and response of the full-electronic interlocking to the equipment resources beside the track, which are called by the vehicle-to-vehicle communication TACS system in operation, to the greatest extent, but is limited by the high construction cost of the test line, and the complex scene and the emergency scene on the whole track cannot be comprehensively simulated, so that the full-electronic interlocking function verification scheme is difficult to become a generalized full-electronic interlocking function verification scheme. The method for verifying the correctness and stability of the full-electronic interlocking function in the vehicle-to-vehicle communication TACS system by using a mode of building a test line and adopting real trackside equipment has the following specific problems:

1. the cost investment of the test system is large, and the equipment maintenance is redundant. Because the real load is adopted, the equipment such as a real signal lamp, a shielding door, a track circuit and the like is required to be connected into a laboratory, the occupied space is large, the equipment maintenance is complicated, the verification of the simulation system is unfavorable, and the volume minimization and the function maximization of the simulation system can not be realized on the premise of restoring the working principle of the real track circuit as much as possible.

2. The circuit design of the trackside equipment is complex, and potential safety hazards exist in electricity utilization. The respective circuit designs of real trackside equipment such as annunciators, shielding gates, track circuits and the like are different, and the working voltages and the electrical properties are quite different, so that different circuits need to be accessed to ensure that the trackside equipment can work normally. Therefore, the method of adopting the real interlocking equipment is difficult to realize the generalization and unification of the full-electronic interlocking test under the TACS system, and is not beneficial to the efficient implementation of the integrated test.

3. The expansion of the external interface is insufficient. Because the test line adopts a whole set of real track equipment, the planning of the whole verification environment is basically determined at the beginning of construction, and when equipment or a subsystem outside an external plan is required to be accessed in the actual verification process, the test line is limited by the inadequacy of the interface of the real equipment, the problem that the external interface is difficult to expand is often caused, and the problem that the whole test environment is influenced for a long time is caused.

4. The test work is not friendly enough. By adopting a full-electronic interlocking function verification mode of a test line and a real trackside device, a tester needs to monitor and record the actions of the trackside device on site by naked eyes, and manually records the test information of the device, so that the state change of the trackside device in the test process is difficult to be effectively and accurately recorded, the accuracy of a test result cannot be ensured, and the burden of testing various scenes and inducing test data by the tester is increased.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a load simulation device, a method, equipment and a medium which are controllable in cost, integrated, efficient and expandable and are based on an all-electronic interlocking interface.

The aim of the invention can be achieved by the following technical scheme:

according to a first aspect of the invention, a load simulation device based on an all-electronic interlocking interface is provided, the device replaces a real trackside device by using simulation equipment and forms a whole set of closed loop verification system with a train control system of a train communication TACS, and the device comprises a trackside resource controller WRC, an all-electronic interlocking target controller ECID-OC, a relay box, a programmable logic controller PLC, a line simulator LineSim and a verification manager which are sequentially connected.

As an optimal technical scheme, the trackside resource controller WRC is responsible for trackside resource calling and distribution and trackside equipment state acquisition in a vehicle-to-vehicle communication mode;

and the trackside resource controller WRC and the all-electronic interlocking target controller ECID-OC perform data interaction under the FSFB/2 protocol based on railway signal safety communication, issue trackside resource allocation instructions to the all-electronic interlocking target controller ECID-OC, and monitor and acquire corresponding trackside equipment states in real time through interlocking.

As an optimized technical scheme, the ECID-OC receives a scheduling instruction sent by the trackside resource scheduling device WRC, and controls the trackside equipment state in a form of outputting control code bits through interlocking internal logic operation; and meanwhile, the state code bits corresponding to the trackside equipment are collected and sent to the trackside resource controller WRC after internal logic operation.

As a preferable technical scheme, the relay box is used for realizing high-low level signal conversion between the ECID-OC and the PLC.

As a preferable technical scheme, the programmable logic controller PLC establishes MELSEC protocol communication with a line simulator lineim of the target device through the ethernet, so as to perform data reading and writing functions of the I/O module;

the I/O module is used for receiving a 24V voltage level control signal sent by the ECID-OC of the all-electronic interlocking target controller through the relay box and sending a response signal of the line simulator LineSim to the ECID-OC of the all-electronic interlocking target controller.

As an preferable technical scheme, the line simulator LineSim is used for simulating all trackside devices in a real line environment of the vehicle-to-vehicle communication TACS;

the line simulator LineSim simulates the state and related logic of the trackside equipment, receives an object control command sent by the ECID-OC of the all-electronic interlocking target controller, realizes the code bit control of the simulated trackside equipment, and feeds back the state code bit of the trackside equipment to the ECID-OC of the all-electronic interlocking target controller in real time.

As an optimal technical scheme, the verification manager has a device state monitoring function, a trackside resource control function and a system state information recording and checking function.

According to a second aspect of the present invention, there is provided a method for the load simulator based on the all-electronic interlock interface, comprising the steps of:

step 1, starting and initializing a trackside resource controller WRC, a full-electronic interlocking target controller ECID-OC, a relay box, a programmable logic controller PLC and a line simulator LineSim from the top layer of a verification system in sequence;

step 2, establishing a vehicle-to-vehicle communication TACS mode to ensure that communication among subsystems is normal;

step 3, in a TACS mode, issuing a train dispatching command through an ATS (automatic train dispatching) system, and setting single-step operation or planned operation of the train;

step 4, the trackside resource controller WRC issues trackside resource allocation instructions to the all-electronic interlocking target controller ECID-OC according to the running condition of the train, and corresponding trackside equipment is controlled to make corresponding changes in time according to the current running state of the train through the all-electronic interlocking target controller ECID-OC;

step 5, the ECID-OC of the all-electronic interlocking target controller sends a trackside resource control instruction to the simulation trackside equipment so as to control the code bit form of various trackside equipment and send a high-voltage level control signal to the relay box;

step 6, the relay in the relay box receives an ECID-OC control instruction of the all-electronic interlocking target controller, then is attracted, a loop at the coil end of the relay is connected, and a Programmable Logic Controller (PLC) connected in the loop receives a 24V direct current low-voltage level signal;

step 7, the programmable logic controller PLC receives a low-voltage level signal through the self IO module, then converts the low-voltage level signal into a network signal through calculation of the self CPU module, and sends the trackside code bit to the line simulator LineSim in real time through the network module;

step 8, after the line simulator LineSim receives a group of code bit changes, changing the corresponding state of the trackside equipment according to the simulated trackside logic for a tester to monitor the state; and simultaneously, a group of code bits for successfully shifting the simulation trackside equipment are activated in a linkage way, and the simulation trackside state is fed back to the ECID-OC and the trackside resource controller WRC of the full-electronic interlocking target controller.

According to a third aspect of the present invention there is provided an electronic device comprising a memory and a processor, the memory having stored thereon a computer program, the processor implementing the method when executing the program.

According to a fourth aspect of the present invention there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method.

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

1. the test system has low construction cost and can greatly save time and space. Compared with the method for building a real test line and adopting real trackside equipment to perform the sports car test, the method greatly saves the cost of manpower and material resources by adopting a mode of simulating trackside resources through a generalized simulation load, can build a full-electronic interlocking simulation linkage verification platform of a whole car communication TACS train control system in a very short time, and greatly saves the space occupation caused by building the real trackside equipment.

2. The universal test device has strong universality and wide coverage, and can meet test requirements of different scales. Compared with the situation that real trackside equipment is limited by fund input conditions and line complexity, the invention adopts the scheme of simulating trackside resources by using generalized simulation load, can only change part of lines in a relay box, realizes omnibearing generalized simulation of different-scale lines, has wider test coverage, and is more comprehensive and real for various complex scenes and emergency scene simulation in a real operation environment.

3. The integration level is high, the design is refined, and the high-efficiency performance of the integration test is facilitated. The invention uses the full-electronic interlocking generalized load simulation device to uniformly concentrate different kinds of real trackside equipment into each relay box in the same relay simulation load mode, and the load circuit is relatively simple, thereby being beneficial to realizing the generalization and unification of full-electronic interlocking test under a TACS system.

4. The system has strong expansibility and flexibility. Compared with a real track testing device, the invention adopts the full-electronic interlocking generalized load simulation device to greatly improve the compatibility and flexibility of the whole set of testing system, and the system can realize the butt joint with an external system by simply adding a new external interface for a simulation track side program without considering the large-scale reconstruction of a hardware level.

5. The system is simple to operate and is friendly to test. Because the invention adopts the simulation program to replace a large number of real track devices, testers do not need to expend a great deal of effort to learn the operation modes and maintenance methods of various strong and weak current devices, do not need to record the actions of the track side devices by naked eyes, only need to monitor the code position changes of the related track side devices through the line simulator software at the verification manager end, not only greatly improve the test efficiency, but also avoid the potential safety hazards caused by improper operation in the test process as much as possible, and reduce the maintenance cost of the system.

6. The TACS system is characterized in that the TACS system is flexibly controlled by trackside resources (annunciators, turnouts and the like), the full-electronic interlocking generalized load simulation device is applied to an on-track TACS signal system, can integrate and verify functions of a TACS large system, particularly can realize function verification of deep integration of a trackside resource controller WRC and a full-electronic interlocking object controller ECID-OC, and provides a flexible and efficient verification means for guaranteeing trackside resource control parts of the TACS system.

Drawings

FIG. 1 is a schematic diagram of the structure of the device of the present invention;

FIG. 2 is a flow chart of the method of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

As shown in fig. 2, a flowchart of the operation of the load simulator is generalized to implement the all-electronic interlock interface. Comprises the following steps:

step 1, starting and initializing TACS trackside resource controller WRC, train automatic dispatching supervision system ATS, full-electronic interlocking ECID cabinet, relay box, programmable logic controller PLC and line simulator LineSim software from the top layer of the verification system.

And 2, establishing a vehicle-to-vehicle communication TACS mode to ensure that communication among subsystems is normal.

And 3, in the TACS mode, issuing a train dispatching command through the ATS, and setting single-step operation or planned operation of the train.

And 4, issuing a trackside resource allocation instruction to the full-electronic interlocking object controller ECID-OC by the trackside resource controller WRC according to the running condition of the train, and controlling corresponding trackside equipment to make corresponding change in time according to the current running state of the train through the ECID-OC.

And 5, the ECID-OC transmits a trackside resource control instruction to the simulation trackside equipment so as to control the code bit form of various trackside equipment and transmit a high-voltage level control signal to a relay coil end.

And 6, the relay receives ECID-OC control electricity and then is attracted, a loop of a control end of the relay is controlled to be connected, and a PLC module connected in the loop receives a 24V direct current low-voltage level signal.

And 7, the PLC receives the low-voltage level signal through the self IO module, then calculates and converts the low-voltage level signal into a network signal through the self CPU module, and sends the trackside code bit to the line simulator LineSim in real time through the network module.

Step 8, after the LineSim receives a group of code bit changes, changing the corresponding state of the trackside equipment according to the simulated trackside logic for a tester to monitor the state; and simultaneously, a group of code bits which are used for activating the simulated trackside equipment to displace successfully are linked, and the simulated trackside state is fed back to ECID and WRC.

The above description of the method embodiments further describes the solution of the present invention by means of device embodiments.

As shown in FIG. 1, the structure schematic diagram of the generalized load simulator for realizing the full-electronic interlocking interface comprises a trackside resource controller WRC, a full-electronic interlocking target controller ECID-OC, a relay box, a programmable logic controller PLC, a line simulator LineSim and a verification manager which are sequentially connected. The device uses simulation equipment to replace a real trackside device, and forms a whole set of closed loop verification system with a train-to-train communication TACS train control system, so that no positive line equipment is occupied, and the simulation running test and trackside linkage verification of the whole line can be performed in a laboratory. The device and related functions of each part included in the device are as follows:

1. the trackside resource controller WRC:

the controller is a trackside resource management core device in a train control system of the train communication TACS, and is responsible for trackside resource calling and distribution and trackside equipment state acquisition in a train communication mode. Under the Ethernet environment, the system and the method perform data interaction under the FSFB/2 protocol based on railway signal safety communication with the full-electronic interlocking target controller, issue a trackside resource allocation instruction to the full-electronic interlocking, and monitor and collect corresponding trackside equipment states in real time through the interlocking.

2. All-electronic interlocking target controller ECID-OC

The device is a core unit for controlling the trackside equipment and collecting the state in the train-car communication TACS train control system. The method comprises the steps of receiving a scheduling instruction sent by a trackside resource scheduling device WRC, and controlling trackside equipment states of a point switch, a signal lamp, a shielding door, a track circuit and the like in a mode of outputting control code bits through interlocking internal logic operation; meanwhile, the system also collects the status code bits corresponding to the trackside equipment and sends the status code bits to the trackside resource scheduling device after internal logic operation. Through the operation functions, the all-electronic interlocking target controller ensures reasonable distribution, safety and stability of all the trackside equipment.

3. Relay box

The device is a relay box formed by intensively combining a large number of relays and capacitors connected in parallel at two sides. Because the level signals output and received by each board card of the target controller are high-voltage level signals of 380V, 220V, 110V and the like, and the level signals which can be sent and received by the programmable logic controller PLC are low-voltage level signals of 24V, the level signals need to be transited through a relay so as to better simulate the electrical properties of the real equipment beside the track. The capacitors connected in parallel with the two sides of the relay can control the relay to achieve slow absorption and slow release, prevent the abrupt change of coil current and reduce induced electromotive force, thereby protecting the circuit.

4. Programmable logic controller PLC:

the device is a Q-series programmable logic controller PLC, and comprises a Q-series PLC CPU and a Q-series I/O module. The PLC CPU has the function of establishing MELSEC protocol communication with a target equipment line simulator (LineSim) through the Ethernet so as to perform the data reading and writing functions of the I/O module; the I/O module is used for receiving a 24V low-voltage level control signal sent by the full-electronic interlocking target control ECID-OC through the relay box and sending a response signal of the line simulator LineSim to the full-electronic interlocking target controller. The device has the core function of realizing conversion between electric signals and network signals, thereby establishing connection between hardware equipment such as an all-electronic interlocking target controller, a relay box and the like and software such as a rail side equipment simulator and the like, and realizing replacement of the rail side real equipment by the simulator.

5. Line simulator linesims:

the simulator is mainly used for simulating all trackside equipment in a real line environment of a vehicle-to-vehicle communication TACS, and comprises a track circuit, a annunciator, a turnout, a platform door, related station trackside buttons and the like. The simulator simulates the state and related logic of the trackside equipment, receives the object control command sent by the target controller and the simulation thereof, realizes the code bit control of the simulated trackside equipment, and feeds back the state code bit of the trackside equipment to the full-electronic interlocking in real time.

6. Verification manager:

the device is an integrated management platform for testers, and has the functions of equipment state monitoring, trackside resource control and system state information recording and checking. Through the man-machine interaction interface provided by the platform, a tester can monitor the state of the simulated trackside resources in the line simulator LineSim in real time, and can send the state code bits of the simulated trackside resources to the full-electronic interlock, so that the dispatching and control of the simulated trackside resources are realized. Meanwhile, the platform also provides an information recording function of the system state, a tester can analyze the testing process and the testing result at any time and any place by calling the corresponding state record of the system, the testing quality of the system is improved, and the working efficiency is ensured.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the described modules may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.

The electronic device of the present invention includes a Central Processing Unit (CPU) that 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 the operation of the device can also be stored. The CPU, ROM and RAM are connected to each other by a bus. An input/output (I/O) interface is also connected to the bus.

A plurality of components in a device are connected to an I/O interface, comprising: an input unit such as a keyboard, a mouse, etc.; an output unit such as various types of displays, speakers, and the like; a storage unit such as a magnetic disk, an optical disk, or the like; and communication units such as network cards, modems, wireless communication transceivers, and the like. The communication unit allows the device to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

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

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: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.

Program code for carrying out methods of the present invention may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be 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 can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. The load simulation device based on the all-electronic interlocking interface is characterized in that the device replaces a real trackside device by using simulation equipment and forms a whole set of closed loop verification system with a train control system of a train communication TACS, and the device comprises a trackside resource controller WRC, an all-electronic interlocking target controller ECID-OC, a relay box, a programmable logic controller PLC, a line simulator LineSim and a verification manager which are sequentially connected.

2. The load simulator based on the all-electronic interlocking interface according to claim 1, wherein the trackside resource controller WRC is responsible for trackside resource call allocation and trackside equipment status collection in a vehicle-to-vehicle communication mode;

3. The load simulator based on the all-electronic interlocking interface according to claim 1, wherein the all-electronic interlocking target controller ECID-OC receives a scheduling instruction sent by the trackside resource scheduling device WRC, and controls the trackside equipment state in the form of an output control code bit through interlocking internal logic operation; and meanwhile, the state code bits corresponding to the trackside equipment are collected and sent to the trackside resource controller WRC after internal logic operation.

4. The load simulator based on the all-electronic interlocking interface according to claim 1, wherein the relay box is used for realizing high-low level signal conversion between the all-electronic interlocking target controller ECID-OC and the programmable logic controller PLC.

5. The load simulator based on the all-electronic interlocking interface according to claim 1, wherein the programmable logic controller PLC establishes MELSEC protocol communication with the line simulator lineim of the target device through the ethernet, so as to perform the data reading and writing functions of the I/O module;

6. The load simulator based on the all-electronic interlocking interface according to claim 1, wherein the line simulator LineSim is used for simulating all trackside equipment in a real line environment of the vehicle-to-vehicle communication TACS;

7. The load simulator based on the all-electronic interlocking interface according to claim 1, wherein the verification manager has a device status monitoring function, a trackside resource control function, a system status information recording and viewing function.

8. A method for an all-electronic interlock interface based load simulator of claim 1, comprising the steps of:

9. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the processor implements the method of claim 8 when executing the program.

10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to claim 8.