CN114859856A - Simulation test system and method for subway LCU equipment module and relay array module - Google Patents

Abstract

The invention provides a simulation test system and a simulation test method for a subway LCU equipment module and a relay array module, wherein the system comprises the following steps: the LCU equipment module executes the control command and sends the instruction and the state information of the LCU equipment to the simulation test teaching all-in-one machine through a subway LCU physical operation train control logic program; the relay array module executes the control command to realize the logical combination of relays with different functions through subway relay physical equipment, and sends the instruction and the state information of the relay array module to the simulation test teaching all-in-one machine; the simulation test teaching all-in-one machine interacts with LCU equipment or a relay array through a simulation module and a test module in a computer, so that simulation, function test and performance test of LCU equipment programs or relay arrays are realized, and a teaching function is realized. The train circuit function simulation test system is designed aiming at the same train circuit function, simulation test verification is carried out through the LCU equipment module and the relay array module, and meanwhile, an experiment result can be submitted for a teacher to grade.

Description

Simulation test system and method for subway LCU equipment module and relay array module

Technical Field

The invention relates to the technical field of train electrical control, in particular to a simulation test system and method for a subway LCU (lower control unit) equipment module and a relay array module.

Background

The functions of the train electrical control circuit in the subway train comprise train activation, cab occupation, pantograph lifting, main breaker closing and opening, train traction blocking, brake control, traction safety control and the like. These functions may be implemented by hard-wired circuitry, or may be electronically controlled.

A large number of existing metro vehicles adopt a relay control mode, a large number of relays can be arranged in each electrical cabinet of a train in the control mode, and the relays complete a control function. The existing subway vehicle has the defects that the relay has the action service life, the relay can generate action adhesion, action slowness and even misoperation after long-time switching, and once the problems occur, the troubleshooting is very difficult.

In recent years, an LCU (Logic Control Unit) is gradually applied to subway circuit Control, and in addition to a newly built vehicle using an LCU, an existing subway vehicle actively replaces an original relay rack with an LCU to reduce failure rate and troubleshooting difficulty.

However, after the original relay combination rack is replaced by the LCU, the functions finished by the original relay entity are converted into codes of the logic control unit, so that the LCU is more abstract when students learn, and the teaching effect is greatly reduced. Therefore, in consideration of no matter which mode is adopted, the basic logic for completing the electric control function of the train is not changed, the functions of relay control and LCU control are made on the same system, and the most basic principle is shown through comparison between different realizations of the same function; meanwhile, the level jump curve of the LCU due to the relay can be visually compared through waveform acquisition, so that students can recognize the reason that the LCU replaces the relay and the essential purpose of technical development; in addition, the mutual substitution of software and hardware implementation modes can be understood through two implementation modes, the basic principle of computer control is deepened to be learned, and the effect of simulation test is achieved.

At present, the LCU logic control unit system in the prior art is mainly used for the design and development of the LCU itself, or is suitable for the test work of the LCU logic control unit of the electric locomotive. The existing LCU logic control unit system mainly completes the complete machine test and the power panel and each single board detection function aiming at the LCU logic unit.

The disadvantages of the LCU logic control unit system in the prior art are as follows: the method is mainly suitable for testing the LCU equipment, is used for checking whether the equipment can support the safe operation of getting on the bus or is suitable for the design and development of the LCU product, and is not suitable for teaching experiments.

Disclosure of Invention

The embodiment of the invention provides a simulation test system and a simulation test method for a subway LCU equipment module and a relay array module, which are used for realizing simulation test verification on a train by using an LCU program and a relay circuit.

In order to achieve the purpose, the invention adopts the following technical scheme.

According to one aspect of the invention, a simulation test system for a subway LCU equipment module and a relay array module is provided, which comprises: the simulation test teaching all-in-one machine is connected with the LCU and relay switching module and the display module through cables respectively, and the LCU and relay switching module are connected with the LCU equipment module and the relay array module through cables respectively;

the LCU equipment module is used for executing the control command sent by the simulation test teaching all-in-one machine and sending the instruction and the state information of the LCU equipment to the simulation test teaching all-in-one machine through a subway LCU real object running train control logic program;

the relay array module is used for executing the control command sent by the simulation test teaching all-in-one machine, realizing the logical combination of relays with different functions through subway relay physical equipment, and sending the instruction and the state information of the relay array module to the simulation test teaching all-in-one machine;

the simulation test teaching all-in-one machine is used for interacting with LCU equipment or a relay array through a simulation module and a test module in a computer, realizing simulation, function test and performance test on an LCU equipment program or the relay array, verifying an LCU design program or a relay array design circuit of a student and realizing a teaching function.

The display module is used for displaying information output by the test module in the simulation test teaching all-in-one machine and providing an operation interface for the test module;

and the power supply module supplies power to the LCU equipment module, the relay array module, the LCU and relay switching module, the simulation test teaching all-in-one machine and the display module respectively.

Preferably, the LCU device module is composed of subway LCU devices and a connection cable, the connection cable includes a digital input connection DI cable, a digital output connection DO cable, a communication cable and a maintenance cable, the connection object of the DI cable and the DO cable is a DO and DI module of the simulation test teaching all-in-one machine for transmitting the instruction and state information of the LCU devices, the connection object of the communication cable is a communication interface module of the simulation test teaching all-in-one machine for transmitting the device diagnosis information of the LCU devices, the maintenance cable is externally connected with a maintenance PC, and the LCU program design, compiling and downloading are completed.

Preferably, the relay array module is composed of a relay, a wiring terminal, an array jumper and an input/output interface cable, wherein the wiring terminal is used for wiring the relay, the array jumper is distributed among the relay arrays and used for assisting wiring operation and realizing logic combination and power supply of the relay with different functions, and the input/output interface cable is used for connecting the input/output cable of the relay array module with a DO (data only) module and a DI (direct input/output) module of the simulation test teaching one-bar machine.

Preferably, the simulation test teaching all-in-one machine comprises: the system comprises an LCU and relay switching module, a simulation module, a test module, a flow management module, a simulation comparison result feedback module and a test processing module;

the LCU and relay switching module is used for switching in soft switching by adopting a switch; the system consists of two sets of completely same DO and DI modules, a simulation test teaching integrated machine program and a selector switch, wherein the two sets of same DO modules are respectively used as input interfaces of an LCU equipment module and a relay array module, the two sets of same DI modules are respectively used as output interfaces of the LCU equipment module and the relay array module, and the LCU equipment module and the relay array module are switched through a soft switching module;

the simulation module comprises a functional simulation model and a simulation architecture configuration module, and the functional simulation model is used for simulating the whole function of the train circuit; the simulation architecture configuration module is used for associating interface information from the LCU equipment module or the relay array module with corresponding interfaces in a train main circuit frame and a train circuit subfunction simulation model to realize the configuration of a train circuit simulation architecture;

the test module comprises a function test module, an LCU interface voltage acquisition module, a relay circuit interface voltage acquisition module, a timing module and a performance test module: the function test module realizes the complete train circuit function after the interface of the LCU equipment module or the relay array module is associated with the function operation simulation model, verifies the functional design of the LCU equipment module or the relay array module, provides circuit function test for teachers and students, and provides an operation interface through interaction with the function simulation module;

the test processing module is used for drawing a dynamic graph according to the collected interface voltage signal, the timing information and the clock signal and outputting the dynamic graph to the display module;

the process management module is used for managing modules such as student login management, design task selection, relay circuit design, relay circuit wiring, LCU program design, LCU program downloading, relay circuit function testing, LCU function testing, relay circuit performance testing, LCU circuit performance testing, result analysis, score submission, teacher evaluation and the like;

and the simulation comparison result feedback module is used for acquiring a function test result from the function test module of the test module, acquiring a performance test result from the performance test module, comparing the test results of the LCU equipment module and the relay array module circuit, and feeding the comparison result back to a manager. And the manager collects the comparison results of each design process and simulation for the teacher to grade, and the grade result is recorded into the system.

Preferably, a teaching system is constructed based on the simulation test system of the subway LCU equipment module and the relay array module, the architecture of the teaching system comprises a basic equipment layer, a simulation model layer, a data layer and an application layer, the basic equipment layer comprises each equipment of a system body, a teaching simulation test integrated machine and a precision voltage and current measuring device, and the teaching simulation test integrated machine is used for managing a DI/DO module, an LCU host, the precision voltage and current measuring device and the teaching simulation test integrated machine in the system; the simulation model layer comprises a function simulation module, a simulation framework configuration module, a function test module and a performance test module and is used for supporting function simulation and performance simulation and collecting assessment data in an experiment; the data layer is used for storing the execution data of the simulation model layer and managing user data; the application layer comprises login management, process management, teacher scoring and result management, comparison test results and the like, and is used for managing user login and logout, test processes, teacher scoring and result statistics, providing comparison display of function and performance test results and test process data display, and providing scoring basis for teachers.

According to one aspect of the invention, a simulation test method for a subway LCU equipment module and a relay array module is provided, which is suitable for a simulation test system for the subway LCU equipment module and the relay array module, and comprises the following steps:

(12) selecting a function needing simulation or test in the train control function, and analyzing and describing the selected function;

(13) determining an input/output interface of an LCU design or a relay circuit design according to the selected function;

(14) according to the functional description and the interface, students respectively design LCU programs and relay circuits;

(15) downloading the compiled LCU program to LCU equipment;

(16) wiring the relay array according to the designed relay circuit;

(17) completing the interface matching of the LCU program design and the relay circuit design, connecting the LCU interface with the corresponding DIDO module, and connecting the relay circuit interface with the corresponding DIDO module;

(18) the LCU interface information and the relay circuit interface information acquired from the DIDO module are associated with corresponding interfaces in the functional simulation model through a simulation architecture configuration module, and virtual-real interaction is completed;

(19) respectively carrying out function test aiming at LCU program design and relay circuit design through a function test module;

(20) respectively carrying out performance test aiming at LCU program design and relay circuit design through a performance test module;

(21) the students compare and analyze the results of the function test and the performance test and submit the data, the results and a comparison and analysis report of the experimental process;

(22) and (5) evaluating the results by the teacher.

Preferably, the method further comprises:

the train control function is divided into pantograph control, main breaker control, cab occupation, door full-closing monitoring circuit and traction enable control circuit function modules, interfaces among the function modules, software-implemented parts are associated through software interfaces, hardware-implemented parts are connected through DI/DO, the software interfaces and the hardware interfaces are uniformly managed through a simulation architecture configuration module, the interfaces are associated with function simulation models corresponding to the modules or are associated with LCU equipment modules or relay array module circuits, and students can select the interfaces according to test requirements;

during testing, a student selects a module to be designed, and the module is connected with the DI/DO after being realized through the LCU equipment module or the relay array module circuit; then, connecting a configuration interface through a simulation framework configuration module to establish virtual-real combined function simulation; and verifying the LCU program or the relay circuit designed by the student through functional simulation.

Preferably, the method further comprises:

the simulation model is used for simulating the functions of each function module of the train circuit in the teaching simulation test all-in-one machine, and the physical design collects interface signals through the DI/DO module and transmits the interface signals to the collection processing module in the all-in-one machine; the acquisition processing module transmits a signal from the physical design to the simulation framework configuration module;

the simulation framework configuration module manages interface signals from the physical design through a hard interface, manages interface signals from the simulation model through a soft interface, and configures a main processing program to access signal interfaces of each subfunction through a train main circuit frame, wherein the signal interfaces comprise a signal interface of the simulation model and a signal interface of the physical design;

the simulation framework configuration module configures signals from a physical design into a train main circuit frame through a hard interface matching program block, and configures signals from a simulation model into the train main circuit frame through a soft interface matching program block; and the hard interface matching program block adopts interface information from an LCU host or interface information from a relay circuit according to the switching state control transmitted by the switching control switch, configures the data interaction of the functional simulation between the main processing program and the functional simulation module, and completes the data transmission of the train circuit and the train operation simulation.

Preferably, the method further comprises:

the running simulation of the whole vehicle is built through the software model and the hardware model together to perform functional test on the LCU program or the relay circuit; acquiring voltage and current at interface ends of an LCU equipment module and a relay array module circuit through a precise voltage and current acquisition device, acquiring port voltage and current change data, and performing performance test;

the two sets of DI/DO modules are respectively connected with the LCU host and the relay circuit, interface data are collected and then transmitted to the teaching simulation test integrated machine, a simulation architecture configuration module in the teaching simulation test integrated machine completes simulation architecture configuration together with each software simulation model aiming at functions realized by the LCU host or the relay circuit, and the function simulation module accesses train operation simulation, train subsystem simulation and train line simulation according to the configured simulation architecture to complete train function simulation together; the function test module extracts a tested signal on the basis of the function simulation module, tracks the signal change and completes the function test; and the performance test module performs performance test according to the data of the voltage and current acquisition device.

According to the technical scheme provided by the embodiment of the invention, the circuit control system of the subway LCU equipment module and the relay array module provided by the embodiment of the invention combines the requirement of comparison design in teaching, students can respectively use the LCU program and the relay circuit to design aiming at the same train circuit function, and can carry out simulation test verification through the system and submit the experimental result for a teacher to grade.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a structural diagram of a simulation test system for a subway LCU equipment module and a relay array module according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a system cabinet of a simulation test system controlled by a subway LCU equipment module and a relay array module according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a software and hardware architecture of a simulation test system controlled by a subway LCU equipment module and a relay array module according to an embodiment of the present invention;

fig. 4 is an architecture diagram of a teaching system controlled by a subway LCU equipment module and a relay array module according to an embodiment of the present invention;

fig. 5 is a schematic view of an operation management flow of a simulation test system controlled by a subway LCU equipment module and a relay array module according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a program structure of a simulation framework configuration module according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a train circuit model combining a physical design and a simulation model according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For the convenience of understanding the embodiments of the present invention, the following description will be further explained by taking several specific embodiments as examples in conjunction with the drawings, and the embodiments are not to be construed as limiting the embodiments of the present invention.

The invention builds a simulation test system controlled by a subway LCU equipment module and a relay array module, and can support a system for process comparison, control effect comparison and experimental grading management based on relay train control function realization, LCU train control function realization and two-way function realization.

The invention provides a simulation test system and system for controlling a subway LCU (controller control Unit) equipment module and a relay array module, which meet the teaching requirements of a train electrical control circuit principle, a relay control realization principle, an LCU alternative relay control principle, a comparison experiment method for realizing train electrical control logic software and hardware, feasibility interchange of software and hardware functions in a train electrical control circuit, a teaching system realized based on the LCU equipment module and the relay array module, automatic scoring and the like in teaching by realizing and comparing the relay control and the LCU control.

The simulation test system of the subway LCU equipment module and the relay array module provided by the embodiment of the invention has a structure as shown in fig. 1, and comprises the LCU equipment module, the relay array module, the LCU and relay switching module, a simulation test teaching all-in-one machine, a display module and a power supply module. The simulation test teaching all-in-one machine is connected with the relay switching module and the display module through cables and the LCU, and the LCU and the relay switching module are connected with the LCU equipment module and the relay array module through cables. And the power supply module supplies power to the LCU equipment module, the relay array module, the LCU and relay switching module, the simulation test teaching all-in-one machine and the display module respectively.

The LCU equipment module is used for executing the function simulation control command and the function test control command sent by the simulation test teaching all-in-one machine and sending the instruction and the state information of the LCU equipment to the simulation test teaching all-in-one machine through a subway LCU physical operation train control logic program;

the relay array module is used for executing the control command sent by the simulation test teaching all-in-one machine to realize the logical combination of relays with different functions through subway relay physical equipment and sending the instruction and the state information of the relay array module to the simulation test teaching all-in-one machine;

the simulation test teaching all-in-one machine is used for interacting with LCU equipment or a relay array through a simulation module and a test module in a computer, realizing simulation, function test and performance test on an LCU equipment program or the relay array, verifying an LCU design program or a relay array design circuit of a student and realizing a teaching function.

The display module is used for displaying information output by the test module in the simulation test teaching all-in-one machine and providing an operation interface for the test module;

and the power supply module supplies power to the LCU equipment module, the relay array module, the LCU and relay switching module, the simulation test teaching all-in-one machine and the display module respectively.

And the power supply module supplies power to the LCU equipment module, the relay array module, the LCU and relay switching module, the simulation test teaching all-in-one machine and the display module respectively.

The LCU equipment module consists of subway LCU equipment and a connecting cable, wherein the LCU equipment adopts subway LCU physical equipment and is used for operating a train control logic program; the connection cables include a DI (digital input connection cable) cable, a DO (digital output connection cable) cable, a communication cable, and a maintenance cable; DI, DO cable in the connecting cable is consistent with the connection mode of the subway train, a special cable plug is adopted, but the connection object is a DO and DI module of the simulation test teaching integrated machine and is used for transmitting the instruction and state information of LCU equipment; the communication cable is in line with the subway train, but the connection object is a communication interface module of the simulation test teaching all-in-one machine and is used for transmitting equipment diagnosis information of the LCU equipment; the maintenance cable is used for being externally connected with a maintenance PC to complete LCU program design, compiling and downloading.

The relay array module consists of a relay, a wiring terminal, an array jumper wire and an input/output interface cable. The relay adopts subway relay material object equipment and is used for realizing relay control; the wiring terminal is used for wiring the relay; array jumpers are distributed among the relay arrays and used for assisting in more visual wiring operation and realizing logic combination and power supply of relays with different functions; the input and output interface cable is used for connecting the input and output cable of the relay array module with the DO and DI modules of the simulation test teaching one-bar machine.

Above-mentioned simulation test teaching all-in-one is integrated simulation module, test module and teaching system on a computer, and simulation test teaching all-in-one includes: the system comprises an LCU and relay switching module, a simulation module, a test module, a flow management module, a simulation comparison result feedback module and a test processing module.

The LCU and relay switching module adopts a switch to access soft switching; the device consists of two sets of completely same DO and DI modules, a simulation test teaching integrated machine program and a change-over switch. And the two sets of same DO modules are respectively used as input interfaces of the LCU equipment module and the relay array module and are connected with the LCU equipment module and the relay array module through connecting cables. The two sets of same DI modules are respectively used as output interfaces of the LCU equipment module and the relay array module and are connected with the LCU equipment module and the relay array module through connecting cables. The two sets of DI and DO modules are connected with the simulation test teaching all-in-one machine through connecting cables; two modules, namely an LCU interface module and a relay interface module, are developed in the simulation test teaching all-in-one machine program, and the two modules are respectively responsible for input and output interfaces of the LCU equipment module and the relay array module; a soft switching module is developed in the simulation test teaching all-in-one machine program and is responsible for switching between the LCU equipment module and the relay array module. The soft switching module is controlled by an external switch, so that the teaching can be operated intuitively.

2. The simulation module comprises a functional simulation model and a simulation architecture configuration module:

the functional simulation model is used for simulating the whole function of the train circuit, students realize a certain part of functions in the train circuit through the LCU equipment module or the relay array module, other parts of functions are realized by a train main circuit framework and a train circuit subfunction simulation model, and the three parts jointly realize the complete train circuit function and are integrally displayed by the functional operation simulation model.

The simulation framework configuration module is used for associating interface information from the LCU equipment module or the relay array module with corresponding interfaces in a train main circuit frame and a train circuit subfunction simulation model, so that the configuration of the train circuit simulation framework is realized, a complete train circuit function is formed, and the function simulation is supported.

3. The test module comprises a function test module, an LCU interface voltage acquisition module, a relay circuit interface voltage acquisition module, a timing module and a performance test module:

the function test module can realize the complete train circuit function after the interface from the LCU equipment module or the relay array module is associated with the function operation simulation model, and at the moment, whether the function needs to be tested is normal or not is judged, so that the function design of the LCU equipment module or the relay array module is verified; the function test module is used for providing circuit function tests for teachers and students, providing an operation interface through interaction with the function simulation module, sending out operation circuit instructions, displaying changes of circuit states and visually displaying the changes of the circuit states to the students.

And the LCU interface voltage acquisition module is used for acquiring the interface voltages of the LCU and the DI/DO module and synchronously transmitting the interface voltages to the test processing module according to the clock of the timing module.

And the relay circuit interface voltage acquisition module is used for acquiring interface voltages of the relay circuit and the DI/DO module and synchronously transmitting the interface voltages to the test processing module according to the clock of the timing module.

And the timing module is used for managing clock synchronization information of the LCU interface voltage acquisition module, the relay interface voltage acquisition module and the test processing module and timing the whole test process.

4. And the test processing module is used for drawing a dynamic graph according to the acquired interface voltage signal, the timing information and the clock signal and outputting the dynamic graph to the display module.

5. And the process management comprises modules for managing student login, design task selection, relay circuit design, relay circuit wiring, LCU program design, LCU program downloading, relay circuit function test, LCU function test, relay circuit performance test, LCU circuit performance test, result analysis, score submission, teacher evaluation and the like.

6. And (3) feeding back a simulation comparison result, wherein the module acquires a function test result from a function test module of the test module, acquires a performance test result from the performance test module, compares the test results of the LCU equipment module and the relay array module circuit, and feeds back the comparison result to a manager. And the manager collects the comparison results of each design process and simulation for the teacher to grade, and the grade result is recorded into the system.

The invention provides a subway LCU equipment module and relay array module comparison experiment method for teaching, which comprises the steps of function analysis, interface confirmation, logic program and relay circuit design, LCU program compiling and downloading, relay array wiring, function test, performance test, analysis result submission, achievement evaluation and the like.

(23) Selecting typical functions such as emergency brake control, traction enabling, pantograph action control and the like in the train control function, analyzing and describing the functions;

(24) according to the selected function, determining an input/output interface of the LCU design or the relay circuit design, wherein the interface is the LCU interface and the relay circuit interface;

(25) according to the function description and the interface, students respectively carry out LCU program design and relay circuit design.

(26) Downloading the compiled LCU program to LCU equipment;

(27) wiring the relay array according to the designed relay circuit;

(28) completing interface matching of the two design modes, connecting an LCU interface with a corresponding DIDO (Data input/Data output, digital input/output module) module, and connecting a relay circuit interface with the corresponding DIDO module;

(29) the LCU interface information and the relay circuit interface information acquired from the DIDO module are associated with corresponding interfaces in the functional simulation model through a simulation architecture configuration module, and virtual-real interaction is completed;

(30) respectively carrying out function test aiming at the two design modes through a function test module;

(31) respectively carrying out performance test aiming at the two design modes through a performance test module;

(32) the students compare and analyze the results of the functional tests and the performances and submit the data, the results and the comparison and analysis report of the experimental process;

(33) and (5) evaluating the results by the teacher.

The invention provides a subway LCU equipment module and relay array module testing method for teaching, which comprises a functional simulation test based on simulation architecture configuration, an external port information acquisition and processing and a performance analysis test.

(1) Functional simulation test based on simulation architecture configuration

The train control function is divided into functional modules such as a pantograph control module, a main circuit breaker control module, a cab occupation module, a door full-closing monitoring circuit module, a traction enabling control circuit module and the like; finishing a function simulation model aiming at each module; interfaces among the modules, a software-implemented part (a functional simulation model) is associated through a software interface, and a hardware-implemented part (an LCU equipment module or a relay array module circuit) is connected through DI/DO; the software interface and the hardware interface are managed in a unified way through the simulation framework configuration module, the interface can be associated with a function simulation model corresponding to the module, and can also be associated with an LCU equipment module or a relay array module circuit, and can be selected by students according to test requirements.

During testing, a student selects a module to be designed, and the module is connected with the DI/DO after being realized through the LCU equipment module or the relay array module circuit; then, connecting a configuration interface through a simulation framework configuration module to establish virtual-real combined function simulation; and verifying the LCU program or the relay circuit designed by the student through functional simulation.

(2) External port information processing and performance analysis testing

And installing a data acquisition probe at the interface between the LCU and the DI/DO and between the relay circuit and the DI/DO, acquiring and processing the voltage and current change of the interface, and performing performance analysis and test.

Example two

A schematic diagram of a system cabinet of a simulation test system controlled by a subway LCU equipment module and a relay array module according to an embodiment of the present invention is shown in fig. 2, and as shown in fig. 2, the system cabinet is composed of a power supply, an industrial personal computer, an LCU host, a relay array, a display device, a DI/DO module for acquiring LCU data, and a DI/DO module for acquiring relay circuit data. The power supply provides two modes of 110V direct current and 220V alternating current; the industrial personal computer is used as a teaching, simulating and testing integrated machine; the LCU host adopts physical equipment; the relay adopts a physical relay applied by a rail transit vehicle and forms an array form so as to facilitate wiring; the display device can adopt KVM equipment and can switch display between the industrial personal computer and the LCU host; the DI/DO module for acquiring LCU data is respectively connected with the industrial personal computer and the LCU host computer and transmits the data acquired by the LCU host computer to the industrial personal computer; the DI/DO module of the acquisition relay circuit is respectively connected with the industrial personal computer and the relay circuit, and transmits data acquired by the relay circuit to the industrial personal computer; the cabinet back panel is used for back panel wiring among equipment, and back panel wiring boards are adopted between the DI/DO wiring board and the LCU host computer back panel wiring board, between the DI/DO wiring board and the relay circuit back panel wiring board, and between the DI/DO wiring board and the industrial personal computer, so that students can modify back panel wiring conveniently.

A schematic diagram of a software and hardware architecture of a simulation test system controlled by a subway LCU equipment module and a relay array module provided by the embodiment of the invention is shown in fig. 3, and as shown in fig. 3, a running simulation of a whole vehicle is built together through a software model and a hardware model to perform a functional test on an LCU program or a relay circuit; voltage and current are collected at the interface ends of the LCU equipment module and the relay array module circuit through a precise voltage and current collecting device, and the change data of the voltage and the current of the port is obtained to carry out performance test.

The two sets of DI/DO modules are respectively connected with the LCU host and the relay circuit, and the interface data are collected and then transmitted to the teaching simulation test integrated machine; the integrated machine is provided with a simulation framework configuration module, and aiming at the functions realized by the LCU host or the relay circuit, the simulation framework configuration is completed together with each software simulation model (a pantograph simulation model, a vehicle door simulation model, a main circuit breaker control simulation model and the like) for function simulation; the function simulation module accesses train operation simulation, train subsystem simulation and train line simulation according to a configured simulation framework to jointly complete train function simulation; the function test module extracts a tested signal and tracks the change of the signal on the basis of the function simulation module to finish the function test; and the performance test module performs performance test according to the data of the voltage and current acquisition device.

The architecture diagram of a teaching system controlled by a subway LCU equipment module and a relay array module provided by the embodiment of the invention is shown in FIG. 4, and the system architecture is designed into a four-layer architecture which is a basic equipment layer, a simulation model layer, a data layer and an application layer respectively. The basic equipment layer comprises all equipment of the system body, a teaching simulation test integrated machine, precision voltage and current measuring equipment and the like, and is used for managing the DI/DO module, the LCU host, the precision voltage and current measuring equipment, the integrated machine and the like in the system, monitoring the working state of the DI/DO module, the LCU host, the precision voltage and current measuring equipment, the integrated machine and the like, and collecting the voltage and the current in a program control manner; the simulation model layer comprises a function simulation module, a simulation framework configuration module, a function test module, a performance test module and the like, and is used for supporting function simulation and performance simulation and collecting assessment data in an experiment; the data layer is used for storing the execution data of the model layer, including function test data, performance test data, relay circuit submission data, LCU program submission data and the like, and simultaneously independently managing user data; the application layer comprises login management, process management, teacher scoring and result management, comparison test result display and the like, is used for managing user login and logout, test processes, teacher scoring and result statistics and the like, and meanwhile provides comparison display of function and performance test results and test process data display and provides scoring basis for teachers.

The schematic operation management flow chart of the simulation test system controlled by the subway LCU equipment module and the relay array module provided by the embodiment of the invention is shown in FIG. 5, and as shown in FIG. 5, a flow chart of management software for students to use a teaching system to develop experiments is shown, wherein firstly, a user logs in the system; then selecting functions to be designed, wherein the basic functions of the train circuit are preset and are consistent with the software simulation model, and the functions comprise a pantograph simulation model, a vehicle door simulation model, a main circuit breaker control simulation model and the like; after the function to be designed is selected, two modes can be adopted for design, namely LCU program design and relay circuit design; then, uploading an LCU program or carrying out wiring of a relay circuit; after the test is finished, the function test and the performance test can be carried out, and the results are compared and submitted.

A schematic diagram of a program structure of a simulation architecture configuration module according to an embodiment of the present invention is shown in fig. 6, and as shown in fig. 6, the simulation architecture configuration module completes architecture configuration of a physical design and a simulation model for function simulation. The physical design is LCU program design or relay circuit design, and the simulation model is the function simulation of each function module of the train circuit in the teaching simulation test integrated machine. The physical design acquires interface signals through a DI/DO module and transmits the interface signals to an acquisition processing module in the all-in-one machine; the acquisition processing module transmits signals from the physical design to the simulation framework configuration module. The simulation model comprises various sub-function models in the train circuit, and interface data are transmitted between the models and the simulation architecture configuration module. The simulation framework configuration module manages interface signals from the physical design through a hard interface; interface signals from the simulation model are managed through the soft interface. And configuring a main processing program to access signal interfaces of each subfunction, including a signal interface of a simulation model and a signal interface of a physical design, through a train main circuit frame. The simulation framework configuration module configures signals from a physical design into the train main circuit frame through the hard interface matching program block, and configures signals from the simulation model into the train main circuit frame through the soft interface matching program block. The configuration process of the simulation framework configuration is controlled according to the flow information, the selector switch and the like, and data is interacted between the functional simulation modules. The hard interface matching program block adopts interface information from the LCU host or interface information from the relay circuit according to the switching state control transmitted by the switching control switch. And the configuration main processing program starts a matching process according to the flow information transmitted by the flow management module and feeds back whether the configuration is finished or not in real time. And the main processing program is configured to perform data interaction of function simulation with the function simulation module, so that data transmission of train circuit and train operation simulation is completed.

A schematic diagram of a train circuit model combining a physical design and a simulation model provided by the embodiment of the invention is shown in fig. 7, as shown in fig. 7, a train circuit is divided into a train main circuit frame and a sub-function module, and the train main circuit frame is composed of a train control through wire, a state through wire, a control power supply through wire, an operation handle, a switch, a sub-system module interface and the like; the sub-function modules comprise a pantograph control module, a main circuit breaker control module, a cab occupation module, a door full-closing monitoring circuit, a traction enabling control circuit and other function modules. In the system design, one of the sub-functions is completed by designing an LCU program or a relay circuit; and other subfunctions are designed through software, and the subfunctions are configured with the train main circuit framework through the simulation framework configuration module, so that the train circuit model combining the physical design and the simulation model is completed.

In summary, the circuit control system for the metro LCU equipment module and the relay array module provided by the embodiment of the present invention combines the requirement of comparison design in teaching, and students can respectively use the LCU program and the relay circuit to design for the same train circuit function, and can perform simulation test verification through the system, and simultaneously can submit the experimental result for the teacher to grade.

The system avoids the condition that the traditional LCU product system is mainly suitable for testing the LCU equipment and is used for checking whether the equipment can support the safe operation of getting on the bus or is suitable for the design and development of the LCU product and is not suitable for teaching experiments.

Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.

From the above description of the embodiments, it is clear to those skilled in the art that the present invention can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for apparatus or system embodiments, since they are substantially similar to method embodiments, they are described in relative terms, as long as they are described in partial descriptions of method embodiments. The above-described embodiments of the apparatus and system are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (9)

1. The utility model provides a simulation test system of subway LCU equipment module and relay array module which characterized in that includes: the simulation test teaching all-in-one machine is connected with the LCU and relay switching module and the display module through cables respectively, and the LCU and relay switching module are connected with the LCU equipment module and the relay array module through cables respectively;

the LCU equipment module is used for executing the control command sent by the simulation test teaching all-in-one machine and sending the instruction and the state information of the LCU equipment to the simulation test teaching all-in-one machine through a subway LCU physical operation train control logic program;

the relay array module is used for executing the control command sent by the simulation test teaching all-in-one machine, realizing the logical combination of relays with different functions through subway relay physical equipment, and sending the instruction and the state information of the relay array module to the simulation test teaching all-in-one machine;

the simulation test teaching all-in-one machine is used for interacting with LCU equipment or a relay array through a simulation module and a test module in a computer, realizing simulation, function test and performance test on an LCU equipment program or the relay array, verifying an LCU design program or a relay array design circuit of a student and realizing a teaching function.

The display module is used for displaying information output by the test module in the simulation test teaching all-in-one machine and providing an operation interface for the test module;

and the power supply module supplies power to the LCU equipment module, the relay array module, the LCU and relay switching module, the simulation test teaching all-in-one machine and the display module respectively.

2. The system of claim 1, wherein the LCU device module comprises a metro LCU device and a connection cable, the connection cable comprises a digital input connection DI cable, a digital output connection DO cable, a communication cable and a maintenance cable, the connection object of the DI cable and the DO cable is a DO and DI module of the simulation test teaching all-in-one machine for transmitting the instruction and status information of the LCU device, the connection object of the communication cable is a communication interface module of the simulation test teaching all-in-one machine for transmitting the device diagnosis information of the LCU device, the maintenance cable is externally connected with a maintenance PC to complete the LCU program design and the compiling download.

3. The system of claim 1, wherein the relay array module comprises relays, connection terminals, array jumper wires and input/output interface cables, the connection terminals are used for wiring the relays, the array jumper wires are distributed among the relay arrays and used for assisting in wiring operation and realizing logic combination and power supply of the relays with different functions, and the input/output interface cables are used for connecting the input/output cables of the relay array module with DO and DI modules of the simulation test teaching one-bar machine.

4. The system of claim 1, wherein the simulation test teaching all-in-one machine comprises: the system comprises an LCU and relay switching module, a simulation module, a test module, a flow management module, a simulation comparison result feedback module and a test processing module;

the LCU and relay switching module is used for switching in soft switching by adopting a switch; the system consists of two sets of identical DO and DI modules, an emulation test teaching all-in-one machine program and a selector switch, wherein the two sets of identical DO modules are respectively used as input interfaces of an LCU equipment module and a relay array module, the two sets of identical DI modules are respectively used as output interfaces of the LCU equipment module and the relay array module, and the LCU equipment module and the relay array module are switched through a soft switching module;

the simulation module comprises a functional simulation model and a simulation architecture configuration module, and the functional simulation model is used for simulating the whole function of the train circuit; the simulation architecture configuration module is used for associating interface information from the LCU equipment module or the relay array module with corresponding interfaces in a train main circuit frame and a train circuit subfunction simulation model to realize the configuration of a train circuit simulation architecture;

the test module comprises a function test module, an LCU interface voltage acquisition module, a relay circuit interface voltage acquisition module, a timing module and a performance test module: the function test module realizes the complete train circuit function after the interface of the LCU equipment module or the relay array module is associated with the function operation simulation model, verifies the functional design of the LCU equipment module or the relay array module, provides circuit function test for teachers and students, and provides an operation interface through interaction with the function simulation module;

the test processing module is used for drawing a dynamic graph according to the collected interface voltage signal, the timing information and the clock signal and outputting the dynamic graph to the display module;

the process management module is used for managing modules such as student login management, design task selection, relay circuit design, relay circuit wiring, LCU program design, LCU program downloading, relay circuit function testing, LCU function testing, relay circuit performance testing, LCU circuit performance testing, result analysis, score submission, teacher evaluation and the like;

and the simulation comparison result feedback module is used for acquiring a function test result from the function test module of the test module, acquiring a performance test result from the performance test module, comparing the test results of the LCU equipment module and the relay array module circuit, and feeding the comparison result back to a manager. And the manager collects the comparison results of each design process and simulation for the teacher to grade, and the grade result is recorded into the system.

5. The system according to any one of claims 1 to 4, wherein a teaching system is constructed based on the simulation test system of the subway LCU equipment module and the relay array module, the architecture of the teaching system comprises a basic equipment layer, a simulation model layer, a data layer and an application layer, the basic equipment layer comprises various equipment of a system body, a teaching simulation test all-in-one machine and precision voltage and current measurement equipment, and the teaching simulation test all-in-one machine is used for managing a DI/DO module, an LCU host machine, the precision voltage and current measurement equipment and the teaching simulation test all-in-one machine in the system; the simulation model layer comprises a function simulation module, a simulation framework configuration module, a function test module and a performance test module and is used for supporting function simulation and performance simulation and collecting assessment data in an experiment; the data layer is used for storing the execution data of the simulation model layer and managing user data; the application layer comprises login management, process management, teacher scoring and result management, comparison test results and the like, and is used for managing user login and logout, test processes, teacher scoring and result statistics, providing comparison display of function and performance test results and test process data display, and providing scoring basis for teachers.

6. A simulation test method for an LCU equipment module and a relay array module of a subway, which is suitable for the simulation test system for the LCU equipment module and the relay array module of the subway of any one of claims 1 to 5, the method comprising:

(1) selecting a function needing simulation or test in the train control function, and analyzing and describing the selected function;

(2) determining an input/output interface of an LCU design or a relay circuit design according to the selected function;

(3) according to the functional description and the interface, students respectively design LCU programs and relay circuits;

(4) downloading the compiled LCU program to LCU equipment;

(5) wiring the relay array according to the designed relay circuit;

(6) completing the interface matching of the LCU program design and the relay circuit design, connecting the LCU interface with the corresponding DIDO module, and connecting the relay circuit interface with the corresponding DIDO module;

(7) the LCU interface information and the relay circuit interface information acquired from the DIDO module are associated with corresponding interfaces in the functional simulation model through a simulation architecture configuration module, and virtual-real interaction is completed;

(8) respectively performing function test aiming at LCU program design and relay circuit design through a function test module;

(9) respectively carrying out performance test aiming at LCU program design and relay circuit design through a performance test module;

(10) the students compare and analyze the results of the function test and the performance test and submit the data, the results and a comparison and analysis report of the experimental process;

(11) and (5) evaluating the results by the teacher.

7. The method of claim 6, further comprising:

the train control function is divided into pantograph control, main breaker control, cab occupation, door full-closing monitoring circuit and traction enable control circuit function modules, interfaces among the function modules, software-implemented parts are associated through software interfaces, hardware-implemented parts are connected through DI/DO, the software interfaces and the hardware interfaces are uniformly managed through a simulation architecture configuration module, the interfaces are associated with function simulation models corresponding to the modules or are associated with LCU equipment modules or relay array module circuits, and students can select the interfaces according to test requirements;

during testing, a student selects a module to be designed, and the module is connected with the DI/DO after being realized through the LCU equipment module or the relay array module circuit; then, connecting a configuration interface through a simulation framework configuration module to establish virtual-real combined function simulation; and verifying the LCU program or the relay circuit designed by the student through functional simulation.

8. The method of claim 6, further comprising:

the simulation model is used for simulating the functions of each function module of the train circuit in the teaching simulation test all-in-one machine, and the physical design collects interface signals through the DI/DO module and transmits the interface signals to the collection processing module in the all-in-one machine; the acquisition processing module transmits a signal from the physical design to the simulation framework configuration module;

the simulation framework configuration module manages interface signals from the physical design through a hard interface, manages interface signals from the simulation model through a soft interface, and configures a main processing program to access signal interfaces of each subfunction through a train main circuit frame, wherein the signal interfaces comprise a signal interface of the simulation model and a signal interface of the physical design;

the simulation framework configuration module configures signals from a physical design into a train main circuit frame through a hard interface matching program block, and configures signals from a simulation model into the train main circuit frame through a soft interface matching program block; and the hard interface matching program block adopts interface information from an LCU host or interface information from a relay circuit according to the switching state control transmitted by the switching control switch, configures the data interaction of the functional simulation between the main processing program and the functional simulation module, and completes the data transmission of the train circuit and the train operation simulation.

9. The method of claim 6, further comprising:

the running simulation of the whole vehicle is built through the software model and the hardware model together to perform functional test on the LCU program or the relay circuit; acquiring voltage and current at interface ends of an LCU equipment module and a relay array module circuit through a precise voltage and current acquisition device, acquiring port voltage and current change data, and performing performance test;

the two sets of DI/DO modules are respectively connected with the LCU host and the relay circuit, interface data are collected and then transmitted to the teaching simulation test integrated machine, a simulation architecture configuration module in the teaching simulation test integrated machine completes simulation architecture configuration together with each software simulation model aiming at functions realized by the LCU host or the relay circuit, and the function simulation module accesses train operation simulation, train subsystem simulation and train line simulation according to the configured simulation architecture to complete train function simulation together; the function test module extracts a tested signal on the basis of the function simulation module, tracks the signal change and completes the function test; and the performance test module performs performance test according to the data of the voltage and current acquisition device.

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