CN112068532B - Test bed and test method for network control system of multi-locomotive - Google Patents
Test bed and test method for network control system of multi-locomotive Download PDFInfo
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- CN112068532B CN112068532B CN202010948000.XA CN202010948000A CN112068532B CN 112068532 B CN112068532 B CN 112068532B CN 202010948000 A CN202010948000 A CN 202010948000A CN 112068532 B CN112068532 B CN 112068532B
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
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- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
The invention provides a test bed of a network control system of a double-heading electric locomotive and a test method thereof. This test bench includes: the main control unit chassis, the TCN gateway chassis, the test accompanying equipment and the display screen are connected with each other through a multifunctional vehicle bus in each of the multiple trains; the debugging computer is connected with the test accompanying equipment in any train through the Ethernet; the accompanying and testing equipment is used for simulating a cab remote input and output unit, a simulation micro cabinet remote input and output unit, a simulation traction control unit, a simulation auxiliary control unit and a simulation brake unit; the TCN gateway chassis in two adjacent trains are connected through a train-level bus. The invention simplifies most devices to achieve the purpose of joint debugging of a network control system in a laboratory, and solves the defects of high difficulty and poor reliability of the existing test method.
Description
Technical Field
The invention relates to the technical field of electric locomotives, in particular to a test bed of a network control system of a multi-locomotive electric locomotive and a test method thereof.
Background
The locomotive network control system provides complete and powerful locomotive control functions for users, and the main functions comprise a locomotive control and monitoring function, a network communication function, a traction control function, an auxiliary control function, a brake control function and a maintenance function. The system is also the basis for ensuring the safe and stable operation of the locomotive, along with the technological progress, the functions which can be realized by the locomotive network control system are more and more, and simultaneously, the functions required by customers are more and more complex, so that the design and test difficulty of the locomotive network control system is more and more increased.
At present, a locomotive network control system test adopts two locomotive internal reconnection, and a ground simulation test is carried out by means of a physical simulation platform, and the locomotive network control system test mainly comprises the following equipment: the intelligent control system comprises two TCN gateway cabinets, two main control unit MPU cabinets, two cab remote input and output units RIOM1, two micro cabinet remote input and output units RIOM2, two display screens DDU, eight traction control units TCU1-TCU8, four auxiliary control units ACU and two braking units BCU. The RIOM signal needs to use the test board for signal input and signal output observation, and other devices need to perform corresponding actions when testing a certain function.
The RIOM signals are difficult to find the positions of the input key and the output indicator light corresponding to the corresponding signals, so that the identification of the output signals while the input is correct and the input is difficult. There are also signals that require input time, and it is not uncommon for a test procedure to fail due to signal input errors. The key is only capable of simulating Boolean quantity, analog quantity signal simulation is more difficult, and meanwhile, in the prior art, too many test devices are used in a laboratory environment, and laboratory devices are generally fewer and have high test difficulty. Therefore, the prior art has the defects of more equipment, poor test reliability and high test difficulty.
Disclosure of Invention
The invention develops a test bed for a network control system of a multi-connection electric locomotive, which is applied to the function of test software of the network control system of the electric locomotive and aims to solve the defects of high difficulty and poor reliability of the existing test method.
The invention provides the following technical scheme:
the invention provides a test bed for a network control system of a double-heading electric locomotive, which comprises:
the main control unit chassis, the TCN gateway chassis, the test accompanying equipment and the display screen are connected with each other through a multifunctional vehicle bus in each of the multiple trains;
the debugging computer is connected with the test accompanying equipment in any train through the Ethernet;
the accompanying and testing equipment is used for simulating a cab remote input and output unit, a simulation micro cabinet remote input and output unit, a simulation traction control unit, a simulation auxiliary control unit and a simulation brake unit;
the TCN gateway chassis in two adjacent trains are connected through a train-level bus.
Preferably, the method further comprises the following steps: a data recorder connected to the utility vehicle bus in each of the coupled trains.
Preferably, the test accompanying equipment runs a program simulating data transmission and reception of each unit and realizing a corresponding control function.
Preferably, the utility vehicle bus is a two-wire redundant architecture.
Preferably, the main control unit includes: the first main control unit is used for realizing the network management and operation control function and the second main control unit is used for executing the monitoring function.
Preferably, the TCN gateways include a first TCN gateway and a redundant second TCN gateway.
Preferably, the electric locomotive with reconnection comprises 4 electric locomotives with external reconnection.
Preferably, the test stand is for performing the following locomotive outboard reconnection tests: the method comprises the following steps of display screen locomotive characteristic setting test, network test, driver test, isolation test, storage battery state test, unmanned vigilance test, compressor state monitoring, pantograph test, main breaker test, sanding test, rim lubrication test, automatic passing neutral section test, manual passing neutral section test, main compressor test, in-warehouse test, constant speed test, double-pantograph mode test and redundancy switching test.
The invention also provides a test method of the test bed of the network control system of the double-heading electric locomotive, which comprises the following steps:
s1, the test assistant device connected with the debugging computer receives the input signal needed by the item to be tested simulated by the program in the debugging computer;
s2, the test assistant device transmits the input signal to a multifunctional train bus connected with the test assistant device, and a TCN gateway connected with the multifunctional train bus transmits the input signal to a stranded train bus;
s3, each TCN gateway connected to the twisted wire train bus acquires the input signal and transmits the input signal to the multifunctional train bus connected with each TCN gateway;
s4, the main control unit obtains the input signal through the multifunctional train bus connected with the main control unit, processes the input signal, and sends a control signal for controlling the test assisting equipment which is positioned on the same train with the main control unit to the multifunctional train bus connected with the main control unit;
s5, a TCN gateway connected to the multifunctional train bus, and obtaining a control signal through the multifunctional train bus and transmitting the control signal to the stranded train bus;
s6, each TCN gateway connected to the twisted wire train bus acquires the control command and transmits the control signal to the multifunctional train bus connected with each TCN gateway;
s7, the test assisting device acquires a control signal sent by a main control unit of the same train as the test assisting device through a multifunctional train bus connected with the test assisting device, simulates and executes the action corresponding to the control signal by using a program, and transmits a state signal after the action is executed to the multifunctional train bus connected with the test assisting device;
s8, a TCN gateway connected to the multifunctional train bus, and obtaining a state signal through the multifunctional train bus and transmitting the state signal to the stranded train bus;
s9, each TCN gateway connected to the twisted wire train bus acquires the status signal and transmits the status signal to the multifunctional train bus connected with each TCN gateway;
and S10, the display acquires and displays the status signal through the multifunctional train bus connected with the display so as to determine whether the tested function is normal or not through the status signal.
The invention has the advantages and positive effects that: according to the invention, a semi-physical simulation platform is adopted for construction, most equipment is simplified to achieve the purpose of joint debugging of a network control system in a laboratory, and the defects of high difficulty and poor reliability of the existing test method are overcome. The test bed can be used for the condition that the lack of equipment can not completely simulate corresponding input and output signals or states in the software test of the locomotive network control system, and the accompanying test equipment is used for simulating the input lacking of actual equipment signals and receiving the output signals of the main control unit.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a topological diagram of an external reconnection semi-physical simulation platform provided by an embodiment of the invention;
fig. 2 is a topological diagram of an inline semi-physical simulation platform according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The electric locomotive network control system adopts a three-level bus structure, wherein a train level bus adopts a twisted wire train bus WTB, the transmission rate is 1.0Mbit/s, a vehicle level bus adopts a multifunctional vehicle bus MVB, an electric middle distance EMD medium and the transmission rate is 1.5Mbit/s, and an equipment level bus adopts a CAN bus.
The control unit connected to the various subsystems on the multifunction vehicle bus MVB comprises: a traction control unit TCU, a brake control unit BCU, an auxiliary control unit ACU system and the like. The locomotive network control system mainly comprises a central control unit MPU for realizing the MVB bus management and operation control functions of the vehicle; a remote input and output unit (RIOM1) for realizing the interaction (input and output of hard wire signals) between the locomotive network control system and the cab hard wire signals; a remote input and output unit (RIOM2) for realizing the interaction of hard wire signals (input and output of the hard wire signals) between the locomotive network control system and the equipment between the machines; a display screen (DDU) for displaying the status of the locomotive and subsystems and implementing part of the set functions; a reconnection gateway GW for realizing interconnection and intercommunication of locomotives; a data recorder ERM for recording locomotive operational data.
In the embodiment of the invention, a semi-physical simulation platform technology is adopted, and the existing physical platform and the simulated semi-physical platform are utilized to carry out the joint debugging test of the network control system of the double-heading electric locomotive. The double-heading electric locomotive can be an internal double-heading electric locomotive or an external double-heading electric locomotive, and correspondingly, the test bed can be used for verifying the function of an external double-heading test of the locomotive and can also be used for verifying the function of an internal double-heading test of the locomotive.
Referring to fig. 1, a schematic topology diagram of a test bed of an external reconnection electric locomotive network control system in an embodiment of the invention is shown. The laboratory bench comprises the following equipment:
the external reconnection electric locomotive comprises 4 locomotive reconnection;
each locomotive comprises 1 TCN gateway chassis, 1 main control unit MPU chassis, 1 display screen DDU, 1 data recorder ERM and 1 test accompanying device which are connected through a vehicle-level bus MVB.
And the debugging computer is connected with the accompanying equipment in any train through the Ethernet.
TCN gateways in adjacent locomotives are connected by a train level bus WTB.
Each test-accompanying device can be used for simulating 1 cab remote input and output unit RIOM1, 1 micro cabinet remote input and output unit RIOM2, 4 traction control units TCU, 2 auxiliary control units ACU and 1 brake unit BCU.
The MPU is the main object of debugging and testing, and is the central hub of the locomotive network control system. The locomotive main control program runs on the MPU, and is provided with an MVB communication interface, an Ethernet, a USB and a serial port debugging interface, and the MPU processes data transmitted by DDU, RIOM, ACU, TCU, BCU, GW and other equipment through the MVB and then makes corresponding action on the output of the corresponding equipment, namely, carries out interaction with other equipment.
The DDU is also an important test object in the network control system, has a touch function, is connected to the network through the MVB bus, and can perform a large amount of human-computer interaction.
The remote input and output unit is provided with enough digital quantity and analog quantity acquisition and output ports, but the action and state monitoring of connecting equipment below the RIOM is considered for the signal input and output of the RIOM, and the RIOM is used for testing the input with higher difficulty, so that the simulation equipment is used for accompanying and testing to replace the RIOM to simulate the input and output of corresponding signals so as to simulate the actual situation of the locomotive in the running process.
The accompanying and testing equipment is a central pivot of the whole experiment table for simulating the state of the locomotive, is provided with an MVB interface connected to a bus, can realize input and output of digital quantity analog quantity through a PLC, and simulates interactive data of each subsystem equipment and the bus through the MVB interface. The accompanying test equipment runs programs for simulating data sending and receiving of each unit and realizing corresponding control functions, and the practical operation of the locomotive and the change condition of each variable state of the locomotive can be simulated by simulating the value of any variable through the OpenPCS on the debugging computer; the changes of the variables can be displayed on the display in real time.
The MVB used in the test bed needs to meet the IEC61375 standard, the MVB should have an A, B-path redundant structure, a single-path fault cannot cause communication interruption, and each node on the MVB only receives information on a trusted path. And if the trusted path fails, the monitoring path is switched to the trusted path. The TCN gateway used in the test bed adopts a redundancy scheme of two gateways of each vehicle, the redundancy scheme is respectively defined as first choice and alternative, data of the two gateways are sent to a WTB bus, each TCN gateway connected to the WTB bus can obtain the data, the TCN gateway converts the data from the WTB bus to MVB after obtaining the data and sends the data to the MVB bus, terminal equipment (all equipment with a function of receiving the MVB data except the terminal equipment, such as MPU, DDU, test accompanying equipment and the like) can obtain the data from the MVB bus, and the terminal equipment determines whether the data of the first choice or the alternative gateway is trusted. The MPUs adopt the same equipment redundancy, under the normal condition, a first main control unit MPU1 is used as a main control to realize the network management and operation control functions, and a second main control unit MPU2 is used as a standby MPU to execute the monitoring function. When the main MPU fails, the main control function is automatically quitted, the standby MPU is converted into the main control MPU, and the main control MPU is replaced, so that the normal operation of the network control system is ensured.
In the embodiment of the invention, aiming at the problem that real equipment of RIOM1, RIOM2, TCU, ACU and BCU cannot be provided in the joint debugging test, the joint debugging test of the network control system is carried out by adopting the accompanying test equipment to simulate the equipment. The accompanying test equipment is MVB four-class equipment, and can simulate and complete the related network control function of the equipment. Meanwhile, in the embodiment of the invention, the hardware of the whole test bed considers the debugging and the testing of redundancy, each device is provided with more than two paths of network access network control systems, and the design meets the requirement of a multiple redundancy structure.
Referring to fig. 2, a schematic topology diagram of a test stand of an inline electric locomotive network control system in an embodiment of the invention is shown. The laboratory bench comprises the following equipment:
the internal reconnection electric locomotive comprises 2 locomotive reconnection;
each locomotive comprises 1 TCN gateway chassis, 1 main control unit MPU chassis, 1 display screen DDU, 1 data recorder ERM and 1 test accompanying device which are connected through a vehicle-level bus MVB.
And the debugging computer is connected with the accompanying equipment in any train through the Ethernet.
TCN gateways in adjacent locomotives are connected by a train level bus WTB.
Each test-accompanying device simulates 1 cab remote input and output unit RIOM1, 1 micro cabinet remote input and output unit RIOM2, 4 traction control units TCU, 2 auxiliary control units ACU and 1 brake unit BCU.
The MPU is the main object of debugging and testing, and is the central hub of the locomotive network control system. Locomotive Master control program in this MPThe OU is operated and is provided with an MVB communication interface, an Ethernet, a USB and a serial port debugging interface, and the MPU processes data transmitted by DDU, RIOM, ACU, TCU, BCU, GW and other equipment through the MVB and then makes corresponding action on the output of the corresponding equipment, namely, carries out interaction with other equipment.
The DDU is also an important test object in the network control system, has a touch function, is connected to the network through the MVB bus, and can perform a large amount of human-computer interaction.
The remote input and output unit is provided with enough digital quantity and analog quantity acquisition and output ports, but the action and state monitoring of connecting equipment below the RIOM is considered for the signal input and output of the RIOM, and the RIOM is used for testing the input with higher difficulty, so that the simulation equipment is used for accompanying and testing to replace the RIOM to simulate the input and output of corresponding signals so as to simulate the actual situation of the locomotive in the running process.
The accompanying and testing equipment is a central pivot of the whole experiment table for simulating the state of the locomotive, is provided with an MVB interface connected to a bus, can realize input and output of digital quantity analog quantity through a PLC, and simulates interactive data of each subsystem equipment and the bus through the MVB interface. The accompanying test equipment runs programs for simulating data sending and receiving of each unit and realizing corresponding control functions, and the practical operation of the locomotive and the change condition of each variable state of the locomotive can be simulated by simulating the value of any variable through the OpenPCS on the debugging computer; the changes of the variables can be displayed on the display in real time.
The MVB used in the test bed needs to meet the IEC61375 standard, the MVB should have an A, B-path redundant structure, a single-path fault cannot cause communication interruption, and each node on the MVB only receives information on a trusted path. And if the trusted path fails, the monitoring path is switched to the trusted path. The TCN gateway used in the test bed adopts a redundancy scheme of two gateways of each vehicle, the redundancy scheme is respectively defined as first choice and alternative, data of the two gateways are sent to a WTB bus, each TCN gateway connected to the WTB bus can obtain the data, the TCN gateway converts the data from the WTB bus to MVB after obtaining the data and sends the data to the MVB bus, terminal equipment (all equipment with a function of receiving the MVB data except the terminal equipment, such as MPU, DDU, test accompanying equipment and the like) can obtain the data from the MVB bus, and the terminal equipment determines whether the data of the first choice or the alternative gateway is trusted. The MPUs adopt the same equipment redundancy, under the normal condition, a first main control unit MPU1 is used as a main control to realize the network management and operation control functions, and a second main control unit MPU2 is used as a standby MPU to execute the monitoring function. When the main MPU fails, the main control function is automatically quitted, the standby MPU is converted into the main control MPU, and the main control MPU is replaced, so that the normal operation of the network control system is ensured.
In the embodiment of the invention, aiming at the problem that real equipment of RIOM1, RIOM2, TCU, ACU and BCU cannot be provided in the joint debugging test, the joint debugging test of the network control system is carried out by adopting the accompanying test equipment to simulate the equipment. The accompanying test equipment is MVB four-class equipment, and can simulate and complete the related network control function of the equipment. Meanwhile, the hardware of the whole test bed considers the debugging and testing of redundancy, each device is provided with more than two paths of network access network control systems, and the design meets the requirement of a multiple redundancy structure.
The test method of the test stand in the above embodiment is described in detail below. And (3) starting the test, firstly, brushing corresponding programs into all the equipment in the network control system, and brushing programs simulating data transmission and reception of each unit and realizing corresponding control functions into the test accompanying equipment. And restarting the test bed after the program is brushed. Then entering a formal test process, comprising the following steps:
and S1, the test assistant equipment connected with the debugging computer receives the input signal required by the item to be tested simulated by the program in the debugging computer.
During joint debugging, the debugging computer is connected with the accompanying equipment through the Ethernet, relevant input signals such as pantograph rising, master closing, traction level and the like are simulated through the OpenPCS in the debugging computer, the accompanying equipment simulates feedback signals of the relevant equipment, and the signal state of the equipment can be checked through the OpenPCS or the display screen.
S2, the test assistant device transmits the input signal to a multifunctional train bus connected with the test assistant device, and a TCN gateway connected with the multifunctional train bus transmits the input signal to a stranded train bus;
s3, each TCN gateway connected to the twisted wire train bus acquires the input signal and transmits the input signal to the multifunctional train bus connected with each TCN gateway;
s4, the main control unit obtains the input signal through the multifunctional train bus connected with the main control unit, processes the input signal, and sends a control signal for controlling the test assisting equipment which is positioned on the same train with the main control unit to the multifunctional train bus connected with the main control unit;
the master control unit comprises at least one master control unit in one train, and the master control unit of which train is determined by the content of the test item.
S5, a TCN gateway connected to the multifunctional train bus, and obtaining a control signal through the multifunctional train bus and transmitting the control signal to the stranded train bus;
s6, each TCN gateway connected to the twisted wire train bus acquires the control command and transmits the control signal to the multifunctional train bus connected with each TCN gateway;
s7, the test assisting device acquires a control signal sent by a main control unit of the same train as the test assisting device through a multifunctional train bus connected with the test assisting device, simulates and executes the action corresponding to the control signal by using a program, and transmits a state signal after the action is executed to the multifunctional train bus connected with the test assisting device;
the accompanying test equipment comprises at least one piece of train accompanying test equipment, and the accompanying test equipment of which train is specifically determined by the content of the test items.
S8, a TCN gateway connected to the multifunctional train bus, and obtaining a state signal through the multifunctional train bus and transmitting the state signal to the stranded train bus;
s9, each TCN gateway connected to the twisted wire train bus acquires the status signal and transmits the status signal to the multifunctional train bus connected with each TCN gateway;
and S10, the display acquires and displays the status signal through the multifunctional train bus connected with the display so as to determine whether the tested function is normal or not through the status signal.
The display here includes the display in at least one train, and the display of which train can be decided according to the actual test requirement.
It should be noted that after each signal (input signal, control signal, status signal) is sent from the MVB device, the MVB bus data is converted into WTB bus data through the TCN gateway, and the WTB bus data is transmitted to the TCN gateway of each vehicle section by the TCN gateway.
The following describes a test method of the test bed of the network control system of the multi-locomotive in the embodiment of the invention by taking a pantograph lifting test as an example.
And (3) starting the test, brushing corresponding programs into all the equipment in the network control system, brushing programs simulating data transmission and reception of each unit and realizing corresponding control functions into the accompanying test equipment. And restarting the test bed after the program is brushed.
Simulating an electric key signal through OpenPCS in a debugging computer, and inputting the electric key signal into test accompanying equipment connected with the debugging computer; the test assistant equipment transmits an electric key signal to the MVB connected with the test assistant equipment; the TCN gateway connected to the MVB acquires the signal through the MVB and transmits the signal to the WTB bus, the WTB bus transmits the signal to the MVB of each section of the vehicle through the TCN gateway, and the MPU of each section of the vehicle judges which section of the vehicle the electric key signal comes from after acquiring the electric key signal through the MVB connected with the MPU of each section of the vehicle, and then sets the section of the vehicle as a master control vehicle.
Simulating pantograph lifting signals through an OpenPCS in a debugging computer, inputting the pantograph lifting signals into an accompanying test device connected with the debugging computer, and transmitting the pantograph lifting signals to an MVB connected with the accompanying test device by the accompanying test device; the TCN gateway connected with the MVB acquires the signal through the MVB and transmits the signal to the WTB bus; the WTB bus transmits the signal to the MVB of each section of the train through the TCN gateway, MPUs on each section of the train needing pantograph lifting acquire a pantograph lifting signal through the MVB connected with the MPUs, whether the section of the train meets the pantograph lifting condition is judged, if the section of the train meets the condition, a pantograph lifting instruction is sent to the MVB of the section of the train, after an assistant test device of the section of the train receives the pantograph lifting instruction from the MVB of the section of the train, a program in the assistant test device of the section of the train delays to send a pantograph lifted state signal to the MVB of the section of the train, the MPU of the section of the train judges that the pantograph lifting is successful and transmits the pantograph lifted signal to the MVB of the section of the train after receiving the signal from the MVB of the section of the train, the TCN gateway transmits the signal to the MVB bus of the section of the train, the WTB bus transmits the signal to the MVB of each section of the train, and the DDU of the section of the train acquires the pantograph lifted state from the MVB connected with the MVB, the pantograph lifting function is normal.
The test stand in the present example of the invention can perform the following tests:
1) the method comprises the following steps of (1) displaying screen locomotive characteristic setting test, wherein the test is used for verifying whether a locomotive network control system successfully sets a locomotive number, a seasonal mode, traction brake characteristics, a wheel diameter, a wheel rim lubrication distance and the like for the locomotive;
2) network testing, which is used for verifying whether the network state monitoring of the locomotive network control system for the equipment is correct;
3) the operation end tests, and the tests are used for verifying whether the locomotive network control system is correct for the relevant functions of cab activation control;
4) the driver test is used for verifying whether the calculation and display of the locomotive network control system on the level of the driver are successful or not;
5) the isolation test is used for verifying whether the isolation and the isolation cancellation of the locomotive network control system for each device are successful;
6) the method comprises the following steps of (1) testing the state of a storage battery, wherein the test is used for verifying whether the monitoring of the state of the storage battery by a locomotive network control system is successful;
7) the method comprises the following steps of carrying out an unmanned vigilance test, wherein the test is used for verifying whether the locomotive network control system successfully realizes the unmanned vigilance function;
8) monitoring the state of the compressor, wherein the test is used for verifying whether the locomotive network control system successfully realizes the function of monitoring the state of the compressor;
9) the method comprises the following steps of (1) carrying out pantograph testing, wherein the test is used for verifying whether the realization of functions of a locomotive network control system for pantograph lifting and pantograph lowering is successful;
10) the method comprises the following steps of testing a main circuit breaker, wherein the test is used for verifying whether the locomotive network control system successfully realizes the closing and opening functions of the main circuit breaker;
11) a sanding test for verifying whether the locomotive network control system successfully realizes the sanding function;
12) the method comprises the following steps of (1) testing the wheel rim lubrication, wherein the test is used for verifying whether the locomotive network control system successfully realizes the wheel rim lubrication function;
13) the test is used for verifying whether the locomotive network control system successfully realizes the passing neutral section function;
14) a main compressor test for verifying whether a control function of a locomotive network control system for starting and stopping the main compressor is successful;
15) testing an in-warehouse test, wherein the test is used for verifying whether the locomotive network control system successfully realizes related functions of the in-warehouse test;
16) the method comprises the following steps of (1) carrying out constant speed test, wherein the test is used for verifying whether the locomotive network control system successfully realizes the constant speed control function;
17) the method comprises the following steps of (1) testing a double-bow mode, wherein the test is used for verifying whether the locomotive network control system successfully realizes the double-bow mode function;
18) and (4) a redundancy switching test, which is used for verifying whether the locomotive network control system successfully realizes the redundancy function of the locomotive.
In the embodiment of the invention, a semi-physical simulation platform is adopted for construction, most equipment is simplified to achieve the purpose of joint debugging of a network control system in a laboratory, and the defects of high difficulty and poor reliability of the existing test method are overcome. The test bed can be used for the condition that the lack of equipment can not completely simulate corresponding input and output signals or states in the software test of the locomotive network control system, and the accompanying test equipment is used for simulating the input lacking of actual equipment signals and receiving the output signals of the main control unit.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and 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 units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a reconnection electric locomotive network control system test bench which characterized in that includes:
the main control unit chassis, the TCN gateway chassis, the test accompanying equipment and the display screen are connected with each other through a multifunctional vehicle bus in each of the multiple trains;
the debugging computer is connected with the test accompanying equipment in any train through the Ethernet;
the accompanying and testing equipment is used for simulating a cab remote input and output unit, a simulation micro cabinet remote input and output unit, a simulation traction control unit, a simulation auxiliary control unit and a simulation brake unit; the accompanying and testing equipment is provided with an MVB interface connected to the bus, input and output of digital quantity analog quantity can be realized through the PLC, and interactive data between each subsystem equipment and the bus are simulated through the MVB interface; the accompanying test equipment runs a program which simulates the data transmission and reception of each unit and realizes the corresponding control function;
and the TCN gateway chassis in two adjacent trains are connected through a twisted wire train bus.
2. The test stand of claim 1, further comprising: a data recorder connected to the utility vehicle bus in each of the coupled trains.
3. The test bench according to claim 1, wherein the test accompanying equipment runs a program simulating data transmission and reception of each unit and realizing corresponding control functions.
4. The test stand of claim 1, wherein the utility vehicle bus is a two-wire redundant configuration.
5. The test stand of claim 1, wherein the master control unit comprises: the first main control unit is used for realizing the network management and operation control function and the second main control unit is used for executing the monitoring function.
6. The test bench of claim 1 wherein the TCN gateways comprise a first TCN gateway and a redundant second TCN gateway.
7. The test rig of claim 1, wherein the multi-locomotive comprises 4 off-track electric locomotives.
8. The test stand of claim 7, wherein the test stand is configured to perform the following locomotive outwell reconnection test: the method comprises the following steps of display screen locomotive characteristic setting test, network test, driver test, isolation test, storage battery state test, unmanned vigilance test, compressor state monitoring, pantograph test, main breaker test, sanding test, rim lubrication test, automatic passing neutral section test and manual passing neutral section test, main compressor test, in-warehouse test, constant speed test, double-pantograph mode test and redundancy switching test.
9. A method for testing a test stand of a network control system of a multi-locomotive according to any one of claims 1 to 8, comprising:
s1, the test assistant device connected with the debugging computer receives the input signal needed by the item to be tested simulated by the program in the debugging computer;
s2, the test assistant device transmits the input signal to a multifunctional train bus connected with the test assistant device, and a TCN gateway connected with the multifunctional train bus transmits the input signal to a stranded train bus;
s3, each TCN gateway connected to the twisted wire train bus acquires the input signal and transmits the input signal to the multifunctional train bus connected with each TCN gateway;
s4, the main control unit obtains the input signal through the multifunctional train bus connected with the main control unit, processes the input signal, and sends a control signal for controlling the test assisting equipment which is positioned on the same train with the main control unit to the multifunctional train bus connected with the main control unit;
s5, a TCN gateway connected to the multifunctional train bus, and obtaining a control signal through the multifunctional train bus and transmitting the control signal to the stranded train bus;
s6, each TCN gateway connected to the twisted wire train bus acquires the control signal and transmits the control signal to the multifunctional train bus connected with each TCN gateway;
s7, the test assisting device acquires a control signal sent by a main control unit of the same train as the test assisting device through a multifunctional train bus connected with the test assisting device, simulates and executes the action corresponding to the control signal by using a program, and transmits a state signal after the action is executed to the multifunctional train bus connected with the test assisting device;
s8, a TCN gateway connected to the multifunctional train bus, and obtaining a state signal through the multifunctional train bus and transmitting the state signal to the stranded train bus;
s9, each TCN gateway connected to the twisted wire train bus acquires the status signal and transmits the status signal to the multifunctional train bus connected with each TCN gateway;
and S10, the display acquires and displays the status signal through the multifunctional train bus connected with the display so as to determine whether the tested function is normal or not through the status signal.
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| CN112904823A (en) * | 2021-01-15 | 2021-06-04 | 中车大同电力机车有限公司 | Detection device, detection system and detection method for locomotive reconnection function |
| CN116198574B (en) * | 2023-04-26 | 2023-07-14 | 眉山中车制动科技股份有限公司 | Synchronous control system for simulated locomotive |
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