CN113777950A - Simulation linkage verification system and method for target controller in TACS (terminal control System) - Google Patents
Simulation linkage verification system and method for target controller in TACS (terminal control System) Download PDFInfo
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Abstract
The invention relates to a simulation linkage verification system and a simulation linkage verification method for a target controller in a TACS (train operation control System), wherein the system comprises a trackside control unit, a trackside target control unit and a trackside simulation unit which are sequentially connected; the trackside control unit comprises a trackside resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the trackside target unit comprises a target controller OC and a target controller simulation OC Sim, and the trackside simulation unit comprises a Line simulator Line Sim. Compared with the prior art, the invention has the advantages of resource saving, strong applicability, controllable cost and the like.
Description
Technical Field
The invention relates to the field of rail transit, in particular to a simulation linkage verification system and a simulation linkage verification method for a target controller in a TACS (train operation control System).
Background
The TACS system of the rail transit vehicle-vehicle communication system is the development direction of the rail transit train control system of the next generation after the CBTC mobile communication signal system. The TACS train control system based on train-vehicle communication has the greatest advantages of flexible management of trackside resources such as track occupation resources, turnout resources and the like on the basis of ensuring automatic and autonomous operation of a train. In the flexible management process of the resources beside the track, the TACS adopts a full electronic system target controller to control the resources beside the track, has the characteristics of quick and safe control and feedback, and can meet the flexible control and state acquisition of the TACS system on the resources beside the track.
Because the TACS system belongs to the emerging leading-edge technology of the rail transit industry, the adopted target controller for controlling the trackside resources needs to be tested in an environment which simulates 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. At present, a commonly adopted verification mode in the industry is to build a test run line of a vehicle-to-vehicle communication TACS system, and test the functional correctness and stability of a target controller in a mode of running on a real track. Although the verification mode can truly simulate the calculation and response of the target controller to the vehicle-to-vehicle communication TACS system calling trackside resources in operation, the verification mode is limited by the high construction cost of a train test line, and can often only simulate the track environment with limited length, simulate the interaction with the target controller under the normal operation scene of a train, and cannot simulate the complex scene and the emergency scene on the whole main line. The method for establishing the test line is used for verifying the functional correctness and stability of the target controller in the vehicle communication TACS system, and the specific problems comprise:
1) the construction and maintenance cost is high, and the occupied resources are huge; the test line is similar to a small track main line, multiple aspects such as civil engineering, power supply, signals and the like need to be considered and planned in the early stage of construction, a large amount of manpower, material resources and financial resources are occupied in the construction process, the period is long, the cost is high, the space is huge, and a large amount of maintenance cost still needs to be invested after the construction is completed so as to ensure the stability of the whole verification environment;
2) it is difficult to comprehensively simulate the calculation and response of the target controller to the trackside resource call under various complex scenes and emergency scenes in the actual operation environment. The length of the train test line is limited, normal use and operation of the train can be simulated only in the environment, and the target controller needs to ensure the correctness and stability of functions in various complex scenes and emergency scenes;
3) changing the verification environment configuration requires re-burning the target controller card, which is time and labor consuming. Because the data of the target controller is stored in various board cards of the target controller in a manner of burning in advance, when different test cases are verified, the board cards need to be disassembled and the data needs to be burned again, and at the moment, the whole verification system cannot continue to operate normally, so that the verification efficiency is greatly influenced;
4) the extendibility of the external interface is insufficient. Because the whole set of real track equipment is adopted by the test run line, the planning of the whole verification environment is basically determined at the beginning of construction, when the external equipment or the subsystem needs to be accessed in the actual verification process, the problem that the external interface is difficult to construct due to the inflexibility of the equipment interface is often caused, and the problem that the whole test environment is influenced for a long time is caused.
Disclosure of Invention
The present invention is directed to provide a system and a method for simulation joint verification of a target controller in a TACS system to overcome the above-mentioned drawbacks of the prior art.
The purpose of the invention can be realized by the following technical scheme:
according to a first aspect of the present invention, a simulation linkage verification system for a target controller in a TACS system is provided, the system comprising a trackside control unit, a trackside target control unit and a trackside simulation unit which are connected in sequence; the trackside control unit comprises a trackside resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the trackside target unit comprises a target controller OC and a target controller simulation OC Sim, and the trackside simulation unit comprises a Line simulator Line Sim;
the target controller OC is respectively connected with the trackside resource controller WRC and the safety computer platform CVC-200T, and the target controller simulation OC Sim is respectively connected with the CVC type simulation interlocking CVC-CITB and the trackside resource controller WRC; the Line simulator Line Sim is connected with the target controller OC through the conversion module, and the Line simulator Line Sim is connected with the target controller OC in a simulation mode.
Preferably, the conversion module comprises a relay box and a programmable logic controller; the target controller OC, the relay box, the programmable logic controller and the Line simulator Line Sim are connected in sequence;
the programmable logic controller receives a 24V low-voltage level control signal sent by the target controller OC through the relay box, and sends a response signal of the Line simulator Line Sim to the target controller OC.
Preferably, the system further comprises a verification manager with the functions of equipment state monitoring, trackside resource control and system state information recording and viewing; the verification manager is respectively connected with the target controller OC and the Line simulator Line Sim;
and the state of the simulated trackside resources in the Line simulator Line Sim is monitored in real time through the human-computer interaction interface of the verification manager, and the OC Sim can be simulated through the target controller to send control code bits, so that the scheduling and control of the simulated trackside resources are realized.
Preferably, the trackside resource controller WRC performs data interaction with the target controller OC and the target controller simulation OC Sim respectively through FSFB/2 and RSSP-I protocols;
and the rail side resource controller WRC issues a rail side resource allocation instruction to the target controller OC and the target controller simulation OC Sim, and monitors and acquires the corresponding rail side equipment state in real time through the target controller OC and the target controller simulation OC Sim.
Preferably, the safety computer platform CVC-200T replaces a trackside resource controller WRC to dispatch and distribute trackside resources under the abnormal condition of a vehicle-vehicle communication mode, and realizes the functions of controlling turnout, handling approach and lighting a signal machine in a backup mode.
Preferably, the CVC type simulation interlocking CVC-CITB is a CITB type CVC simulation interlocking lower computer platform, internal logic of the CVC-200T safety computer platform is written into a simulation program, and trackside resource scheduling and distribution functions are achieved in a backup mode instead of a trackside resource controller WRC.
Preferably, the target controller OC receives a scheduling instruction sent by the trackside resource controller WRC or the safety computer platform CVC-200T, and controls the state of trackside equipment in a mode of outputting control code bits through interlocking internal Boolean logic operation; and meanwhile, state code bits corresponding to trackside equipment are collected and sent to a trackside resource controller WRC or a safety computer platform CVC-200T after internal logic operation.
Preferably, the target controller simulation OC Sim is a simulation device of the target controller OC, and the internal logic of the real target controller is written into a simulation program, so that control of trackside equipment and collection of code bits of related equipment are realized, and reasonable distribution and safety and stability of trackside resources are ensured.
Preferably, the Line simulator Line Sim simulates the state and the related logic of the trackside resource, receives an object control command sent by the target controller OC or the target controller simulation OC Sim, realizes code bit control on the simulation trackside equipment, and feeds back the state of the trackside equipment to the target controller OC or the target controller simulation OC Sim in real time.
According to a second aspect of the present invention, there is provided a method for a simulated linkage verification system for a target controller in a TACS system, the method comprising the steps of:
step 1: starting and initializing a trackside control unit, a trackside target control unit and a trackside simulation unit in sequence from the top layer of the verification system;
step 2: establishing a TACS mode for vehicle-to-vehicle communication to ensure normal communication among subsystems;
and step 3: in the vehicle-to-vehicle mode, resources are distributed to the target controller OC and the target controller simulation OC Sim through the trackside resource controller WRC;
and 4, step 4: after the target controller OC and the target controller simulation OC Sim receive the trackside resource allocation instruction from the trackside resource controller WRC, the control instruction corresponding to the trackside resource object is calculated by the internal processor, and the instruction is issued to the Line simulator Line Sim;
and 5: the Line simulator Line Sim responds to the trackside resource control instruction in the TACS mode, and changes code bits corresponding to simulated trackside resources;
step 6: in the backup mode, the resource allocation role is changed from the trackside resource controller WRC to the CVC-200T and CVC type simulation interlocking CVC-CITB of the safety computer platform, and the steps of resource allocation, object control and equipment response are consistent with the vehicle-to-vehicle mode.
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 car test line to carry out sports car testing, the technical scheme greatly saves the cost of manpower and material resources by simulating trackside resources and a target controller through simulation equipment, can build a target controller simulation linkage verification platform of the whole car communication TACS train control system in a short time, and greatly saves the space occupation caused by building real track equipment;
2) the test coverage is wide, and the test requirements of different scales can be met
Compared with a real trackside device and a real target controller, the real trackside device and the real target controller are limited by the capital investment condition and the space occupation degree, and the scheme of simulating trackside resources and the target controller is adopted, so that the configuration file of a simulation program can be only changed, the omnibearing simulation of lines with different scales is realized, the test coverage is wider, and various complex scenes and emergency scenes in a real operation environment are simulated more comprehensively and truly;
3) the system has simple operation and low maintenance cost
Because the scheme adopts the simulation program to replace a large amount of real track equipment, testers do not need to expend a great deal of energy to learn the operation modes and the maintenance methods of various strong and weak current devices, the test efficiency is greatly improved, the potential safety hazard caused by improper operation in the test process can be avoided as much as possible, and the system maintenance cost is reduced;
4) the system has strong expansibility and flexibility
Compared with the test device for the real track and the target controller, the test device for the real track and the target controller has the advantages that the difficulty of external interfaces is increased, and the compatibility and the flexibility of the whole set of test system can be greatly improved by adopting the scheme of simulating trackside resources and the target controller. By simply adding a new external interface to the simulation program, the system can realize the butt joint with an external system without considering the transformation of a hardware layer;
5) at present, the simulation verification method and the simulation verification device are applied to a global first set of TACS demonstration line, namely Shenzhen No. 20 line, and indoor prepositive confirmation and verification are carried out on functions and scenes of the simulation verification method and the simulation verification device, so that one-time high-quality opening is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a target controller simulation linkage verification system of the TACS train control system of the present invention.
FIG. 2 is a data flow chart of the simulation linkage verification method for the target controller of the TACS train control system according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
Example 1
As shown in FIG. 1, this figure presents a target controller simulated linkage verification system for a whole vehicle communication TACS train control system. The device uses simulation equipment to replace a real trackside device, and forms a whole set of closed loop verification system with a train-vehicle communication TACS train control system, does not need to occupy any main line equipment, can perform simulated driving test and trackside linkage of a whole line in a laboratory, and comprises the following parts of devices and related functions:
1) trackside resource controller a:
the controller is a trackside resource management core device in a train control system of the train-vehicle communication TACS and is responsible for trackside resource calling allocation and trackside equipment state acquisition in a vehicle-vehicle communication mode. Under the Ethernet environment, the system carries out data interaction with a target controller d and a target controller simulation g under FSFB/2 and RSSP-I protocols based on railway signal safety communication, issues trackside resource allocation instructions to the target controller and the simulation thereof, and monitors and acquires the corresponding trackside equipment state in real time through the trackside resource allocation instructions.
2) Secure computer platform b:
the platform is a full-electronic interlocking lower computer platform and is used for replacing a trackside resource controller WRC to schedule and distribute trackside resources under the abnormal condition of a vehicle-to-vehicle communication mode, and the functions of controlling turnouts, handling routes, lighting a signal machine and the like under a backup mode are realized. Under the Ethernet environment, the system carries out data interaction with a target controller d and a target controller simulation g under FSFB/2 and RSSP-I protocols based on railway signal safety communication, issues trackside resource allocation instructions to the full electronic interlock and the simulator thereof, and monitors and acquires the corresponding trackside equipment state in real time through the trackside resource allocation instructions.
3) CVC type simulation interlocking c:
the platform is a CITB system CVC simulation interlocking lower computer platform. By writing the internal logic of the safe computer platform b into the simulation program, the platform can also realize the function of scheduling and allocating trackside resources instead of the trackside resource controller WRC in the backup mode. Compared with a safe computer platform b, the system has the core advantages that the whole set of test system equipment is simplified, external interfaces are added, the system expansibility is greatly improved conveniently, and the maintenance cost is further reduced by adopting a simulation program mode.
4) Target controller d
The device is a core unit for controlling trackside equipment and acquiring states in a train control system of the train-vehicle communication TACS. The method comprises the steps of receiving a scheduling instruction sent by a rail side resource scheduling device WRC or CVC, and controlling the states of rail side equipment such as a point switch, a signal lamp, a shielded gate, a track and the like in a mode of outputting control code bits through interlocking internal Boolean logic operation; meanwhile, the state code bits corresponding to the trackside equipment are acquired and sent to the trackside resource scheduling device after internal logic operation. And the target controller d ensures reasonable distribution, safety and stability of all trackside equipment through the operation functions.
5) A relay box e:
the device is a relay box formed by intensively combining a large number of relays. 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 sent and received by the 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 property of real equipment beside a rail.
6) The programmable logic controller f:
the device is a Q-series Programmable Logic Controller (PLC) which 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 h through Ethernet so as to read and write data of the I/O module; the I/O module has the functions of receiving a 24V low-voltage level control signal sent by the target controller d through the relay box e and sending a response signal of the line simulator h to the target controller d. The core function of the device is to realize the conversion between the electric signal and the network signal, thereby establishing the connection between hardware equipment such as a trackside controller, a target controller and the like and software such as a trackside equipment simulator and the like, and realizing the replacement of trackside real equipment by the simulator.
7) Target controller simulation g:
the device is a simulation device of the target controller d, and by writing the internal logic of the real target controller into a simulation program, the device can also realize the control of trackside equipment and the collection of code bits of related equipment, thereby ensuring the reasonable distribution and safety and stability of trackside resources. Compared with the mode that real equipment is used by all of a target controller-trackside equipment of a track main line, the mode that the simulation program replaces trackside real equipment is simulated by the target controller-relay box-PLC-trackside equipment adopted in a laboratory at present, and the mode that the target controller simulation-trackside equipment simulation is adopted by the target controller simulation g, the whole set of target controller test environment can be integrated to the maximum extent, the equipment cost is reduced, and the occupied space is saved. Meanwhile, compared with the network-strong current and network-strong current-weak current-network modes of the two, the communication mode of the full network communication can also guarantee the personal safety of testers and reduce the equipment maintenance cost.
8) A line simulator h:
the simulator is mainly used for simulating all trackside resources in the real line environment of the vehicle-to-vehicle communication TACS, and comprises tracks, signal machines, turnouts, platform doors, related station trackside buttons and the like. The simulator simulates the state and relevant logic of trackside resources, receives a target controller and an object control command sent by simulation of the target controller, realizes code bit control of simulated trackside equipment, and feeds back the state of the trackside equipment to the target controller and the simulation of the target controller in real time.
9) An authentication manager i:
the device is an integrated management platform of the system facing to testers, and has the functions of monitoring equipment state, controlling trackside resources and recording and checking system state information. Through the human-computer interaction interface provided by the platform, testers can monitor the state of the simulated trackside resources in the line simulator h in real time, and can send control code bits through the target controller simulation g, so that the scheduling and control of the simulated trackside resources are realized. Meanwhile, the platform also provides an information recording function of the system state, and testers can analyze the test process and the test result at any time and any place by calling the corresponding state record of the system, so that the test quality of the system is improved, and the working efficiency is guaranteed.
At present, the scheme is adopted by a verification platform of a railway vehicle-vehicle communication TACS train control system, is concentrated on target controller simulation linkage verification of the vehicle-vehicle communication train control system, can realize function test and scene verification of vehicle-vehicle communication train control system items, provides related personnel training for users and the like.
Example 2
As shown in fig. 2, this figure demonstrates a target controller simulation linkage verification method for a vehicle-to-vehicle communication TACS train control system, where the dark portion is the target controller real system device and the light portion is the target controller simulation. The technical scheme comprises the following steps:
step 1: and starting and initializing the trackside control unit, the trackside target control unit and the trackside simulation unit in sequence from the top layer of the verification system. The trackside control unit comprises a trackside resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the trackside target unit comprises a target controller OC and a target controller simulation OC Sim, and the trackside simulation unit comprises a Line simulator Line Sim.
Step 2: and establishing a TACS mode for vehicle-to-vehicle communication to ensure normal communication among subsystems.
And step 3: in the vehicle-to-vehicle mode, resources are allocated to the target controller OC and the target controller simulation OC Sim by the trackside resource controller WRC.
And 4, step 4: after the target controller OC and the target controller simulation OC Sim receive the trackside resource allocation instruction from the trackside resource controller WRC, the control instruction corresponding to the trackside resource object is calculated by the internal processor, and the instruction is issued to the Line simulator Line Sim.
And 5: and the Line simulator Line Sim responds to the trackside resource control instruction in the TACS mode, and changes the code bit corresponding to the simulated trackside resource.
Step 6: in the backup mode, the resource allocation role is changed from the trackside resource controller WRC to the CVC-200T and CVC type simulation interlocking CVC-CITB of the safety computer platform, and the steps of resource allocation, object control and equipment response are consistent with the vehicle-to-vehicle mode.
The embodiment aims at the function verification of the target controller of the railway vehicle-to-vehicle communication TACS train control system, overcomes a plurality of adverse factors of the existing verification mode, and provides a target controller simulation linkage verification scheme with controllable cost, high integration efficiency and expandability from the perspective of system simulation.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A simulation linkage verification system of a target controller in a TACS system is characterized by comprising a trackside control unit, a trackside target control unit and a trackside simulation unit which are sequentially connected; the trackside control unit comprises a trackside resource controller WRC, a safety computer platform CVC-200T and a CVC type simulation interlocking CVC-CITB, the trackside target unit comprises a target controller OC and a target controller simulation OC Sim, and the trackside simulation unit comprises a Line simulator Line Sim;
the target controller OC is respectively connected with the trackside resource controller WRC and the safety computer platform CVC-200T, and the target controller simulation OC Sim is respectively connected with the CVC type simulation interlocking CVC-CITB and the trackside resource controller WRC; the Line simulator Line Sim is connected with the target controller OC through the conversion module, and the Line simulator Line Sim is connected with the target controller OC in a simulation mode.
2. The system of claim 1, wherein the conversion module comprises a relay box and a programmable logic controller; the target controller OC, the relay box, the programmable logic controller and the Line simulator Line Sim are connected in sequence;
the programmable logic controller receives a 24V low-voltage level control signal sent by the target controller OC through the relay box, and sends a response signal of the Line simulator Line Sim to the target controller OC.
3. The system for the simulation linkage verification of the target controller in the TACS system according to claim 1, further comprising a verification manager having a device status monitoring function, a trackside resource control function, a system status information recording and viewing function; the verification manager is respectively connected with the target controller OC and the Line simulator Line Sim;
and the state of the simulated trackside resources in the Line simulator Line Sim is monitored in real time through the human-computer interaction interface of the verification manager, and the OC Sim can be simulated through the target controller to send control code bits, so that the scheduling and control of the simulated trackside resources are realized.
4. The system for the simulation linkage verification of the target controller in the TACS system as claimed in claim 1, wherein the trackside resource controller WRC performs data interaction with the target controller OC and the target controller simulation OC Sim respectively through FSFB/2 and RSSP-I protocols;
and the rail side resource controller WRC issues a rail side resource allocation instruction to the target controller OC and the target controller simulation OC Sim, and monitors and acquires the corresponding rail side equipment state in real time through the target controller OC and the target controller simulation OC Sim.
5. The system for the simulation linkage verification of the target controller in the TACS system as claimed in claim 1, wherein the security computer platform CVC-200T replaces a wayside resource controller WRC to schedule and distribute wayside resources under the abnormal condition of the vehicle-vehicle communication mode, so as to realize the functions of controlling turnout, handling approach and lighting signal machine in the backup mode.
6. The system of claim 1, wherein the CVC-type simulated interlocking CVC-CITB is a CITB-type CVC-type simulated interlocking lower computer platform, and internal logic of the CVC-200T is written into a simulation program to implement a function of performing trackside resource scheduling and allocation instead of trackside resource controller WRC in a backup mode.
7. The system for simulating and verifying the linkage of the target controller in the TACS system as claimed in claim 1, wherein the target controller OC receives a scheduling command from the trackside resource controller WRC or the security computer platform CVC-200T, and controls the state of the trackside equipment in the form of output control code bits through interlocking internal Boolean logic operation; and meanwhile, state code bits corresponding to trackside equipment are collected and sent to a trackside resource controller WRC or a safety computer platform CVC-200T after internal logic operation.
8. The system of claim 1, wherein the target controller emulation OC Sim is an emulation device of the target controller OC, and the control of trackside equipment and the collection of code bits of related equipment are realized by writing the internal logic of a real target controller into an emulation program, so as to ensure the rational distribution and safety and stability of trackside resources.
9. The system of claim 1, wherein the Line simulator Line Sim simulates the state and the related logic of trackside resources, receives an object control command sent by the target controller OC or the target controller simulation OC Sim, realizes code bit control on the simulation trackside equipment, and feeds back the trackside equipment state to the target controller OC or the target controller simulation OC Sim in real time.
10. A method for a simulated linkage verification system for a target controller in a TACS system as claimed in claim 1, characterized in that the method comprises the steps of:
step 1: starting and initializing a trackside control unit, a trackside target control unit and a trackside simulation unit in sequence from the top layer of the verification system;
step 2: establishing a TACS mode for vehicle-to-vehicle communication to ensure normal communication among subsystems;
and step 3: in the vehicle-to-vehicle mode, resources are distributed to the target controller OC and the target controller simulation OC Sim through the trackside resource controller WRC;
and 4, step 4: after the target controller OC and the target controller simulation OC Sim receive the trackside resource allocation instruction from the trackside resource controller WRC, the control instruction corresponding to the trackside resource object is calculated by the internal processor, and the instruction is issued to the Line simulator Line Sim;
and 5: the Line simulator Line Sim responds to the trackside resource control instruction in the TACS mode, and changes code bits corresponding to simulated trackside resources;
step 6: in the backup mode, the resource allocation role is changed from the trackside resource controller WRC to the CVC-200T and CVC type simulation interlocking CVC-CITB of the safety computer platform, and the steps of resource allocation, object control and equipment response are consistent with the vehicle-to-vehicle mode.
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