CN113903229B - Train electrical fault injection and diagnosis simulation training system and training method - Google Patents
Train electrical fault injection and diagnosis simulation training system and training method Download PDFInfo
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- CN113903229B CN113903229B CN202111502488.4A CN202111502488A CN113903229B CN 113903229 B CN113903229 B CN 113903229B CN 202111502488 A CN202111502488 A CN 202111502488A CN 113903229 B CN113903229 B CN 113903229B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
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- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
Abstract
The invention provides a train electrical fault injection and diagnosis simulation training system and a train electrical fault injection and diagnosis simulation training method, which aim to solve the problems that the existing electrical system teaching training mode cannot be accurately attached to practice and the training effect cannot be guaranteed, and belongs to the technical field of rail transit teaching training. The system comprises a local control terminal and an electric physical device, or the system comprises a physical practical training device, a virtual simulation unit and the like. According to the training method, in a local control mode, a teacher carries out corresponding operation on a local control terminal, fault commands are injected, and a student carries out fault diagnosis and elimination on electric physical equipment. Under the linkage control mode, a teacher compiles training course contents on a teaching management unit, a virtual simulation unit imports a fault scene, and a student carries out fault diagnosis and elimination on physical training equipment. The fault injection method has the advantages that the transformation of the original vehicle electrical system is small, the transformation is fit with the actual situation, the electrical fault under the complex working condition can be reproduced, and the training effect is ensured.
Description
Technical Field
The invention relates to the technical field of rail transit teaching and training, in particular to a train electrical fault injection and diagnosis simulation training system and a train electrical fault injection and diagnosis simulation training method.
Background
The electric system plays an extremely important role in train control, power supply, communication, and the like as an important component of a train. Because the electrical system involves numerous equipment components and parts and complex control logic, great difficulty is brought to daily routing inspection of maintenance operators and fault diagnosis and treatment under abnormal conditions, and multi-angle and multi-aspect training needs to be carried out on operators.
At present, teaching and training about an electrical system mainly aims at teaching a teacher to explain theoretical knowledge, and the acceptance and understanding of the student to a static electrical path schematic diagram have certain difficulty. For the implementation part, real vehicles are mostly used as training platforms for teaching contents, most faults are difficult to reproduce, the diagnosis process is difficult to be trained fully, and a plurality of potential safety hazards exist in the training process.
In order to solve various problems in the teaching, training and examination process of the electrical system, a plurality of feasible solutions are also developed in the field. However, most of these solutions do not fit the reality accurately, so that the training effect cannot be guaranteed.
Disclosure of Invention
The invention provides a train electrical fault injection and diagnosis simulation training system and a training method, aiming at solving the problems that the existing electrical teaching training mode can not be accurately attached to the practice and the training effect can not be ensured.
The technical scheme adopted by the invention is as follows:
a train electrical fault injection and diagnosis simulation training system, the system comprising:
the local control terminal is used for storing basic data of the simulated fault and standard fault processing flow data, injecting electric faults of the train in a local control mode, receiving fault removal operation records of the trainees and judging the trainees;
and the electrical physical equipment is in mutual bidirectional communication with the local control terminal and is used for providing an operation platform for fault injection and diagnosis so that trainees can practice on the simulated real equipment.
Further, the local control terminal comprises a local operation electrical interface, an upper computer and a PLC logic control unit; the local operation electrical interface and the PLC logic control unit and the upper computer and the PLC logic control unit are in mutual bidirectional communication.
Further, the electrical physical equipment comprises a control unit and an electrical unit; the control unit and the electric unit are in mutual bidirectional communication; the control unit is provided with a PLC _ I/O interface, and the PLC _ I/O interface and the PLC logic control unit are in mutual bidirectional communication; the electrical unit comprises a plurality of components.
The training method based on the train electrical fault injection and diagnosis simulation training system comprises the following steps:
step S1, the local control terminal receives a training command and selects a local control mode A or a local control mode B according to the training command; the local control mode A is a control mode based on a real vehicle electrical schematic diagram; the local control mode B is a control mode based on a fault library;
step S2, the local control terminal issues a fault injection command to the electric physical equipment according to a local control mode A or a local control mode B, wherein the fault injection command comprises a fault type and a fault application position;
step S3, the electric physical equipment receives a fault injection command and adjusts the self state to the initialization state before training;
step S4, the student carries out fault diagnosis and elimination on the electric material object equipment;
step S5, feeding back the change of the state of the electric physical equipment to the local control terminal to form a fault-removing operation record;
and step S6, the local control terminal judges the student according to the fault injection command, the fault removal operation record and the standard fault processing flow.
Based on the same inventive concept, the invention also discloses a train electrical fault injection and diagnosis simulation training system, which comprises:
a real object practical training device;
the other auxiliary equipment is used for providing other linkage simulation working scenes;
the train control unit is in mutual two-way communication with the real object practical training equipment and the other auxiliary equipment and is used for finishing interaction of control commands and state feedback in a linkage control mode;
the virtual simulation unit is in mutual bidirectional communication with the train control unit and is used for providing a scene of electrical fault occurrence and fault diagnosis and elimination operation in a virtual scene in a linkage control mode;
the teaching management unit is in mutual bidirectional communication with the virtual simulation unit and is used for editing the content of fault treatment training courses, issuing training commands and judging students;
wherein, real standard equipment in kind includes:
the local control terminal is used for storing simulated fault basic data and standard fault processing flow data, injecting electric faults of the train and receiving fault removal operation records of trainees;
and the electrical physical equipment is in mutual bidirectional communication with the local control terminal and is used for providing an operation platform for fault injection and diagnosis so that trainees can practice on the simulated real equipment.
Further, the local control terminal comprises a local operation electrical interface, an upper computer and a PLC logic control unit; the local operation electrical interface is in two-way communication with the PLC logic control unit and the upper computer is in two-way communication with the PLC logic control unit.
Further, the electrical physical equipment comprises a control unit and an electrical unit; the control unit and the electric unit are communicated with each other; the control unit is provided with a PLC _ I/O interface, and the PLC _ I/O interface and the PLC logic control unit are communicated with each other; the electrical unit comprises a plurality of components.
Furthermore, the train control unit is connected with the PLC logic control unit through an MVB bus or an Ethernet.
Furthermore, the train control unit is provided with an interface connected with the virtual training unit, an interface connected with the teaching management unit, an interface connected with the physical practical training equipment and an interface connected with the other auxiliary equipment.
The training method based on the train electrical fault injection and diagnosis simulation training system comprises the following steps:
step S1, the instructor edits the training course content of the electric fault treatment through the teaching management unit, issues a training command and executes a linkage control mode A;
step S2, the virtual simulation unit receives training course content and imports the scene of electrical fault;
step S3, the train control unit receives training course content and sends an electrical fault injection command and other work scene import commands to the real object practical training equipment and the other auxiliary equipment which participate in linkage according to the training course content;
step S4, the real object practical training equipment receives a fault injection command and adjusts the self state to the initialization state before training;
step S5, the student completes information report, electric fault position judgment, fault diagnosis and elimination after the electric fault occurs in the virtual simulation unit, and forms a fault removal operation record;
step S6, the train control unit receives the fault-removing operation record and drives the state of the real training equipment to be synchronous with the virtual state;
and step S7, the teaching management unit judges the trainees according to the information reports and the fault-removing operation records.
Alternatively, the first and second electrodes may be,
the training method comprises the following steps:
step S1, the instructor edits the fault treatment training course content through the teaching management unit, issues a training command and executes a linkage control mode B;
step S2, the virtual simulation unit receives training course content and imports the scene of electrical fault;
step S3, the train control unit receives training course content and sends an electrical fault injection command and other work scene import commands to the real object practical training equipment and the other auxiliary equipment which participate in linkage according to the training course content;
step S4, the real object practical training equipment receives a fault injection command and adjusts the self state to the initialization state before training;
step S5, the student reports the information after the fault occurs in the virtual simulation unit and judges the position of the fault, and then the fault diagnosis and elimination are carried out on the electric physical equipment;
step S6, feeding back the change of the state of the electric physical equipment to the local control terminal to form a fault-removing operation record and sending the fault-removing operation record to the virtual simulation unit;
step S7, the virtual simulation unit receives the fault-removing operation record and completes the synchronization of the virtual state and the real training equipment state;
step S8, the virtual simulation unit sends information report and troubleshooting operation record to the teaching management unit;
and step S9, the teaching management unit judges the trainees according to the information reports and the fault-removing operation records. The invention has the beneficial effects that:
the invention provides a train electrical fault injection and diagnosis simulation training system and a train electrical fault injection and diagnosis simulation training method, aiming at solving the problems that the existing electrical system teaching training mode cannot be accurately attached to the practice and the training effect cannot be guaranteed. The train electrical fault injection and diagnosis simulation training system comprises a local control terminal, electrical physical equipment and a teaching management unit, or the train electrical fault injection and diagnosis simulation training system comprises physical training equipment, a train control unit, a virtual simulation unit and a teaching management unit. The simulation training system restores the train-mounted electrical system and configures a local control mode or a linkage control mode. The local control mode supports a user to inject faults into any component and any position, and the transformation of the original vehicle electrical system by the fault injection method is small. The linkage control mode supports the introduction of a fault scene, and the faults of the electrical system under various complex working conditions such as abnormal driving are reproduced.
Compared with the prior art, the invention has the advantages that:
1. a local control mode or a linkage control mode is configured, so that the basic training function of an electrical system is guaranteed, a real site closer to the real working condition can be provided, and the training fault diagnosis and handling capacity of a student is comprehensively improved;
2. the teaching management system has an automatic evaluation function, improves evaluation accuracy, relieves teaching pressure, and provides targeted data support for making a teaching plan;
3. the restored electric system can completely replace a real vehicle object platform, reduces the operation risk in the teaching and training process, reduces the dependence on real vehicles objects, and improves the training efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a logical connection structure of a train electrical fault injection and diagnosis simulation training system in embodiment 1.
Fig. 2 is a schematic diagram of a logical connection structure of the train electrical fault injection and diagnosis simulation training system in embodiment 2.
The attached drawings are illustrated as follows:
101-a local control terminal, 102-electric physical equipment, 103-a train control unit, 104-a linkage control interface, 105-a virtual simulation unit, 106-a teaching management unit, 107-physical practical training equipment and 108-other auxiliary equipment;
101 a-a local operation electrical interface, 101 b-an upper computer and 101 c-a PLC logic control unit;
102 a-control unit, 102 b-electrical unit, 102 c-PLC _ I/O interface.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or component must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention.
Embodiments of the invention are described in detail below with reference to the accompanying drawings.
Example 1
After the applicant researches the existing electric teaching training mode in many aspects, the applicant finds that the existing electric system teaching training mode is mostly an electric fault injection method based on real equipment, restores a vehicle-mounted electric system in equal proportion, and intelligently reconstructs the restored electric system in modes of fault signal triggering and the like so as to fulfill the aim of developing teaching activities by means of the equipment. The method modifies the original vehicle circuit more or less, is not actually attached, is difficult to keep the effect completely consistent with the original vehicle circuit, and cannot ensure the training effect.
Therefore, the present embodiment provides a train electrical fault injection and diagnosis simulation training system, as shown in fig. 1. The simulation training system comprises a local control terminal 101 and an electric physical device 102.
Specifically, the local control terminal 101 is configured to store basic data of the simulated fault and standard fault processing flow data, inject an electrical fault into the train in the local control mode, receive a fault removal operation record of the trainee, and evaluate the trainee.
The local control terminal 101 includes a local operation electrical interface 101a, an upper computer 101b, and a PLC logic control unit 101 c. The local operation electrical interface 101a and the PLC logic control unit 101c, and the upper computer 101b and the PLC logic control unit 101c are in mutual bidirectional communication.
In the local control mode a, an instructor selects a switch, a contactor, a breaker or a line to be subjected to a fault on a real vehicle electrical path schematic diagram, wherein the real vehicle electrical path schematic diagram is the basic data of the simulated fault stored in the local control terminal 101. And clicking the corresponding component on the graph to select the fault type of the component. The fault types include short circuit fault, open circuit fault, ground fault, switch/contactor/breaker pull-in fault. After the selection is finished, the fault information is transmitted to the PLC logic control unit 101c through the upper computer 101 b.
In the local control mode B, a fault is set through a fault library of the local control terminal 101, where the fault library is the basic data of the simulated fault stored in the local control terminal 101. The instructor selects the switch, contactor, breaker or line in the fault library to which the fault applies. The component faults in the fault library are represented in a visual graph mode, and a teacher drags the component faults in the fault library to the component to be subjected to the faults. After the selection is finished, the fault information is transmitted to the PLC logic control unit 101c through the upper computer 101 b.
And the electrical physical device 102 is in mutual bidirectional communication with the local control terminal 101, and is used for providing an operation platform for fault injection and diagnosis, so that trainees can practice on the simulated real device. The electric material object equipment 102 keeps consistent with the corresponding model of the real train in terms of the model, layout, size and the like of components.
The electrical physical object device 102 includes a control unit 102a and an electrical unit 102 b. The control unit 102a and the electrical unit 102b communicate with each other bidirectionally. The control unit 102a has a PLC _ I/O interface 102c, and the PLC _ I/O interface 102c and the PLC logic control unit 101c communicate with each other in both directions. The electrical unit 102b includes several components.
The upper computer 101b transmits the fault information to the PLC logic control unit 101 c. The PLC logic control unit 101c interprets the device failure command into a corresponding timing signal, which is received by the PLC _ I/O interface 102c and then distributed to the components in the electrical unit 102 b. After the electric material object device 102 receives the fault injection command, the built-in control unit 102a drives the corresponding material object electric component to reach the fault state. After the fault setting is completed and the distribution is completed, the electric and physical equipment 102 reaches an initialization state before training. At this time, the trainee performs failure diagnosis and elimination on the electric material object device 102 based on the failure information of the local control terminal 101. The electrical physical object device 102 supports the use of detection tools in everyday work by students to check the device. The detection tool comprises a universal meter, a test pencil, a screwdriver, a flashlight with a photographing function, an interphone and the like. And when the student finds the fault, appropriate measures are taken to eliminate the fault. The fault-removing operation process is fed back to the control unit 102a through the state change of the components on the electric unit 102b, and a fault-removing operation record is formed. The control unit 102a reads the fault-removing operation record and converts the fault-removing operation record into a digital signal through the PLC _ I/O interface 102c to feed back the digital signal to the upper computer 101 b.
In the local control mode, the display interface of the local control terminal 101 serves as an evaluation window, which receives and records the troubleshooting operation of the trainee on the electrical and physical device 102, and evaluates the trainee according to the fault item and the like set by the trainee. And after the evaluation, the instructor is supported to export and print the evaluation result. The judgment basis comprises the following steps: working time, fault diagnosis and treatment process, working safety and attention items and failure items.
The operation time is as follows: the student is required to complete the fault diagnosis and treatment within the time required by the instructor, and the student deducts points or stops working immediately after the specified time.
Fault diagnosis and treatment: the specified student searches the specific position of the fault according to the standard operation process and takes reasonable measures to process the fault. And deducting if no fault is found or the fault is not disappeared after fault processing.
Operation safety and precautions: the trainees are required to comply with the operation standard in the operation process, and the related regulation of safe operation is not violated, so that the components are not damaged. The above problems occur to deduct the operation process of the trainee.
Lattice loss items: the students seriously violate safe operation regulations in the operation process, cause industrial injuries, violent operation and violent violation, cause serious damage to components, and do not obey judgment to automatically interrupt examinations or violate examination discipline. When one or more of the problems appear, the trainees directly judge that the trainees are unqualified in the training or examination.
The train electrical fault injection and diagnosis simulation training system in the embodiment can carry out simulation training with pertinence. For example, the electrical fault of the train cab is simulated, and the corresponding fault diagnosis and processing operation is carried out by the trainee so as to evaluate the capability of the trainee in responding to the electrical fault of the train cab.
The training method based on the train electrical fault injection and diagnosis simulation training system comprises the following steps:
step S1, the local control terminal receives a training command and selects a local control mode A or a local control mode B according to the training command; the local control mode A is a control mode based on a real vehicle electrical schematic diagram; the local control mode B is a control mode based on a fault library;
step S2, the local control terminal issues a fault injection command to the electric physical equipment according to the local control mode A or the local control mode B, wherein the fault injection command comprises a fault type and a fault application position;
step S3, the electric material object equipment receives the fault injection command and adjusts the self state to the initialization state before training;
step S4, the student carries out fault diagnosis and elimination on the electric material object equipment;
step S5, feeding back the change of the state of the electric physical equipment to a local control terminal to form a fault-removing operation record;
and step S6, the local control terminal judges the student according to the fault injection command and the fault removal operation record.
The train electrical fault injection and diagnosis simulation training system in the embodiment has the following characteristics:
1. the method supports the user to inject the fault into any component and any position, and the fault injection method has small reconstruction on the original vehicle electrical system, can provide a practical site closer to the real working condition while ensuring the basic training function of the electrical system, and comprehensively improves the training fault diagnosis and handling capacity of the trainee.
2. The restored electric system can completely replace a real vehicle object platform, reduces the operation risk in the teaching and training process, reduces the dependence on real vehicles objects, and improves the training efficiency.
Example 2
After the applicant researches the existing electric teaching training mode in many aspects, the applicant finds that the existing electric system teaching training mode is mostly an electric fault injection method based on real equipment, restores a vehicle-mounted electric system in equal proportion, and intelligently reconstructs the restored electric system in modes of fault signal triggering and the like so as to fulfill the aim of developing teaching activities by means of the equipment. The method modifies the original vehicle circuit more or less, is not actually attached, is difficult to keep the effect completely consistent with the original vehicle circuit, and cannot ensure the training effect.
Therefore, the present embodiment provides a train electrical fault injection and diagnosis simulation training system, as shown in fig. 2. The simulation training system comprises a physical training device 107, a train control unit 103, a virtual simulation unit 105, a teaching management unit 106 and other auxiliary devices 108.
Specifically, the real object practical training device 107 includes a local control terminal 101 and an electrical real object device 102.
The local control terminal 101 is used for storing basic data of the simulated fault and data of a standard fault processing flow, injecting an electrical fault into the train, receiving a fault removal operation record of a student and judging the student. The local control terminal 101 includes a local operation electrical interface 101a, an upper computer 101b, and a PLC logic control unit 101 c. The local operation electrical interface 101a and the PLC logic control unit 101c, and the upper computer 101b and the PLC logic control unit 101c are in mutual bidirectional communication.
And the electrical physical device 102 is in mutual bidirectional communication with the local control terminal 101, and is used for providing an operation platform for fault injection and diagnosis, so that trainees can practice on the simulated real device. The electric material object equipment 102 keeps consistent with the corresponding model of the real train in terms of the model, layout, size and the like of components. The electrical physical object device 102 includes a control unit 102a and an electrical unit 102 b. The control unit 102a and the electrical unit 102b communicate with each other bidirectionally. The control unit 102a has a PLC _ I/O interface 102c, and the PLC _ I/O interface 102c and the PLC logic control unit 101c communicate with each other in both directions. The electrical unit 102b includes several components.
In the coordinated control mode, the upper computer 101b transmits the failure information to the PLC logic control unit 101 c. The PLC logic control unit 101c interprets the device failure command into a corresponding timing signal, which is received by the PLC _ I/O interface 102c and then distributed to the components in the electrical unit 102 b. After the electric material object device 102 receives the fault injection command, the built-in control unit 102a drives the corresponding material object electric component to reach the fault state. After the fault setting is completed and the distribution is completed, the electric and physical equipment 102 reaches an initialization state before training. At this time, the trainee develops a failure diagnosis on the electric material object device 102 based on the failure information of the local control terminal 101. The electrical physical object device 102 supports the use of detection tools in everyday work by students to check the device. The detection tool comprises a universal meter, a test pencil, a screwdriver, a flashlight with a photographing function, an interphone and the like. And when the student finds the fault, appropriate measures are taken to eliminate the fault. The fault-removal operation process is fed back to the control unit 102a through the state change of the components on the electrical unit 102 b. The control unit 102a reads this information and converts it into a digital signal by the PLC _ I/O interface 102c to feed it back to the upper computer 101 b.
And the virtual simulation unit 105 is used for providing a scene of electrical fault occurrence. The virtual simulation unit 105 has multiple operation modes of a mobile terminal, a PC terminal and a VR terminal, and can help a student to be familiar with a process and an electrical fault occurrence position in a virtual simulation scene. Meanwhile, the trainee can also complete the fault diagnosis and elimination operations in the virtual scene by means of the virtual simulation unit 105.
The teaching management unit 106 is in mutual two-way communication with the virtual simulation unit 105, and is used for editing the content of the fault treatment training course, issuing the training command and judging the trainee.
And the other auxiliary equipment 108 is used for providing other linkage simulation working scenes so as to simulate and reproduce electrical faults under complex working conditions and improve the effect of simulation training. Other auxiliary devices 108 include, but are not limited to, a cab driving training system, a roof high-pressure training system, a vehicle coupling training system, a brake and bogie training system, a door training system, a high-pressure traction training system, and the like. The other auxiliary devices 108 may be one or more of a cab driving training system, a roof high-pressure training system, a vehicle coupling training system, a brake and bogie training system, a vehicle door training system, and a high-pressure traction training system. For example, a cab driving training system is accessed to provide a train running scene so as to carry out simulation training of electrical faults in the running process of the train in a virtual scene.
And the train control unit 103 is in mutual bidirectional communication with the physical practical training equipment 107, the virtual simulation unit 105 and other auxiliary equipment 108 respectively, and is used for finishing interaction of control commands and state feedback under linkage control. The train control unit 103 is connected with the PLC logic control unit 101c of the real object practical training device 107 through an MVB bus or an ethernet. The train control unit 103 further has a linkage control interface 104, and the linkage control interface 104 includes an interface connected with the virtual training unit 105, an interface connected with the teaching management unit 106, an interface connected with the physical training device 107, and an interface connected with other auxiliary devices 108.
In the coordinated control mode a, the contents of the troubleshooting training lesson are edited by the instructor through the teaching management unit 106. The training course content comprises: the method comprises the following steps of (1) generating a scene of single or multiple electrical faults, types of the electrical faults, positions of devices in which the electrical faults occur, names of the devices participating in linkage control and information reporting contents in the fault processing process. The types of faults include: basic operation of electrical faults, emergency treatment of electrical faults, electrical faults under abnormal driving, composite electrical faults and the like. After the selection of the course contents is completed, the selected course contents are distributed to the virtual simulation unit 105 and the train control unit 103. The train control unit 103 completes command issuing and data collection with the physical training equipment 107 and other auxiliary equipment 108. And after the course initialization is finished, the student completes the handling of the electrical fault according to the fault handling flow. The system fault processing flow is compiled according to the standard file actually used by the user, the practical operation flow is met, and the student can finish the course according to the daily production habit. After the lesson is started, the virtual simulation system 105 provides a scene of the occurrence of the fault (including the virtual electrical cabinet). The student completes the information report after the failure occurs in the virtual simulation system 105 using voice recognition or text input. Then, the trainee checks the fault information on the vehicle information display screen of the simulated driving device according to the regulations and judges the position of the fault. After the fault occurrence position is determined, the student completes the electrical fault diagnosis and elimination in the virtual complex scene by the virtual simulation unit 105. The state of the physical training device 107 is synchronized with the virtual state, so that the trainees can verify whether the fault diagnosis and troubleshooting operations in the virtual environment are correct or not through the physical training device 107. The tutorial management system 106 evaluates the trainee according to the standard workflow. And after the evaluation, the instructor is supported to export and print the evaluation result. The judgment basis comprises the following steps: fault information reporting, fault occurrence position confirmation, fault diagnosis, fault treatment and information reporting after the fault treatment is finished.
In the coordinated control mode B, the contents of the troubleshooting training lesson are edited by the instructor through the teaching management unit 106. The training course content comprises: the method comprises the following steps of (1) generating a scene of single or multiple electrical faults, types of the electrical faults, positions of devices in which the electrical faults occur, names of the devices participating in linkage control and information reporting contents in the fault processing process. The types of faults include: basic operation of electrical faults, emergency treatment of electrical faults, electrical faults under abnormal driving and composite electrical faults. After the selection of the course contents is completed, the selected course contents are distributed to the virtual simulation unit 105 and the train control unit 103. The train control unit 103 completes command issuing and data collection with the physical training equipment 107 and other auxiliary equipment 108. And after the course initialization is finished, the student completes the handling of the electrical fault according to the fault handling flow. The system fault processing flow is compiled according to the standard file actually used by the user, the practical operation flow is met, and the student can finish the course according to the daily production habit. After the lesson is started, virtual simulation system 105 provides a scenario where the fault occurred. The student completes the information report after the failure occurs in the virtual simulation system 105 using voice recognition or text input. Then, the trainee checks the fault information on the vehicle information display screen of the simulated driving device according to the regulations and judges the position of the fault. After the failure occurrence position is specified, the trainee performs failure diagnosis on the electrical physical object device 102. The student uses the detection instrument in daily work to check equipment, and the detection instrument includes universal meter, test pencil, screwdriver, takes the flashlight of function of shooing, intercom etc.. And when the student finds the fault, the student takes appropriate measures to eliminate the fault. The data change of the electric and physical training equipment 102 and the physical training equipment 107 are sent to the train control unit 103 through the respective PLC logic control units 101 c. After receiving the information, the train control unit 103 sends the information to the virtual simulation system 105 to complete the state synchronization of the virtual and physical devices. The tutorial management system 106 evaluates the trainee according to the standard workflow. And after the evaluation, the instructor is supported to export and print the evaluation result. The judgment basis comprises the following steps: fault information reporting, fault occurrence position confirmation, fault diagnosis, fault treatment and information reporting after the fault treatment is finished.
Reporting fault information: the learner inputs standard expressions through voice recognition or text, and the system automatically judges according to the input comparison standard expressions or standard expression keywords of the learner.
Confirming the fault occurrence position: the student locks the position of the fault according to the fault information of the vehicle information display screen, such as a 3 rd vehicle electric control cabinet, and lays a foundation for next fault diagnosis;
fault diagnosis: the student uses a detection tool to diagnose the fault of the electrical system and judges the specific components and lines of the fault;
and (3) fault handling: the student disposes the locked fault component and circuit according to a standard operation flow, and observes whether the fault information of the vehicle information display screen is eliminated or not after the disposal is finished;
and (3) reporting information after the fault disposal is finished: and (4) reporting the information of fault disposal completion according to standard expressions by the student through voice recognition or text input, and ending the fault disposal process.
The trainees also need to comply with the operation standard in the operation process, and the related regulations of safe operation are not violated, so that the parts are not damaged. Once the 'lattice-losing item' appears in the operation process, the process is automatically ended, and the trainee is directly judged to be unqualified in the training or examination.
The train electrical fault injection and diagnosis simulation training system in the embodiment has the following characteristics:
1. the electric system fault diagnosis and treatment method has the advantages that the electric system fault under various complex working conditions such as abnormal driving and the like is reproduced through linkage control with other physical equipment, the fault injection of a user at any component and any position is supported, the basic training function of the electric system is guaranteed due to the fact that the original electric system is slightly modified by the fault injection method, a practical site closer to the real working condition can be provided, and the training fault diagnosis and treatment capability of students is comprehensively improved.
2. The teaching management unit has an automatic evaluation function, improves evaluation accuracy, relieves teaching pressure, and provides targeted data support for the formulation of a teaching plan.
3. The restored electric system can completely replace a real vehicle object platform, reduces the operation risk in the teaching and training process, reduces the dependence on real vehicles objects, and improves the training efficiency.
The training method based on the train electrical fault injection and diagnosis simulation training system in the embodiment comprises the following steps:
step S1, the instructor edits the training course content of the electric fault treatment through the teaching management unit 106, issues a training command, and executes the linkage control mode A; the training course content comprises scenes of single or multiple electrical faults, types of the electrical faults, positions of equipment where the electrical faults occur, equipment participating in linkage control, information report content in the fault processing process and the like;
step S2, the virtual simulation unit 105 receives the training course content and imports the scene of the electrical fault;
step S3, the train control unit 103 receives the training course content and sends an electrical fault injection command and other work scene import instructions to the real object training device 107 and other auxiliary devices 108 participating in linkage according to the training course content;
step S4, the real object practical training equipment 107 receives the fault injection command and adjusts the self state to the initialization state before training;
step S5, the student completes information reporting, electrical fault position determination, fault diagnosis and troubleshooting after the electrical fault occurs in the virtual simulation unit 105, and forms a troubleshooting operation record;
step S6, the train control unit 103 receives the fault-removing operation record and drives the state of the real training equipment 107 to be synchronous with the virtual state;
in step S7, the teaching management unit 106 evaluates the trainee according to the information report and the record of the troubleshooting operation.
Alternatively, the first and second electrodes may be,
the training method comprises the following steps:
step S1, the instructor edits the training course content of the electric fault treatment through the teaching management unit 106, issues a training command, and executes the linkage control mode B; the training course content comprises scenes of single or multiple electrical faults, types of the electrical faults, positions of equipment where the electrical faults occur, equipment participating in linkage control, information report content in the fault processing process and the like;
step S2, the virtual simulation unit 105 receives the training course content and imports the scene of the electrical fault;
step S3, the train control unit 103 receives the training course content and sends an electrical fault injection command and other work scene import instructions to the real object training device 107 and other auxiliary devices 108 participating in linkage according to the training course content;
step S4, the real object practical training equipment 107 receives the fault injection command and adjusts the self state to the initialization state before training;
step S5, the student completes information report after the occurrence of the fault in the virtual simulation unit 105 and determines the position of the fault, and then performs fault diagnosis and troubleshooting on the electrical physical device 102;
step S6, feeding back the change of the state of the electric physical equipment 102 to the local control terminal 101 to form a fault-removing operation record and sending the fault-removing operation record to the virtual simulation unit 105;
step S7, the virtual simulation unit 105 receives the troubleshooting operation record, and completes the state synchronization between the virtual state and the physical training device 107;
step S8, the virtual simulation unit 105 sends the information report and the troubleshooting operation record to the teaching management unit 106;
in step S9, the teaching management unit 106 evaluates the trainee according to the information report and the record of the troubleshooting operation.
The train electrical fault injection and diagnosis simulation training system in the embodiment can be switched to a local control mode for training when linkage control mode training is not needed.
In the training method in the embodiment, the electric system faults under various complex working conditions such as abnormal driving and the like can be reproduced, an implementation site closer to a real working condition can be provided, and the training fault diagnosis and handling capacity of trainees is comprehensively improved.
Claims (10)
1. A train electrical fault injection and diagnosis simulation training system, the system comprising:
the local control terminal is used for storing basic data of the simulated fault and standard fault processing flow data, injecting electric faults of the train in a local control mode, receiving fault removal operation records of the trainees and judging the trainees; the simulation fault basic data is a real vehicle electric road schematic diagram or a visual graphic fault library; injecting the train electrical fault in a manner of clicking on a real train electrical path schematic diagram or dragging one or more visual graphic fault libraries to preset positions;
the electric physical device is in mutual bidirectional communication with the local control terminal and is used for providing an operation platform for fault injection and diagnosis, so that students can practice on simulated real equipment by adopting a detection tool.
2. The train electrical fault injection and diagnosis simulation training system according to claim 1, wherein the local control terminal comprises a local operation electrical interface, an upper computer and a PLC logic control unit; the local operation electrical interface and the PLC logic control unit and the upper computer and the PLC logic control unit are in mutual bidirectional communication.
3. The train electrical fault injection and diagnosis simulation training system according to claim 2, wherein the electrical physical equipment comprises a control unit and an electrical unit; the control unit and the electric unit are in mutual bidirectional communication; the control unit is provided with a PLC _ I/O interface, and the PLC _ I/O interface and the PLC logic control unit are in mutual bidirectional communication; the electrical unit comprises a plurality of components.
4. The training method of the train electrical fault injection and diagnosis simulation training system according to any one of claims 1 to 3, wherein the method comprises the following steps:
step S1, the local control terminal receives a training command and selects a local control mode A or a local control mode B according to the training command; the local control mode A is a control mode based on an electrical schematic diagram; the local control mode B is a control mode based on a fault library;
step S2, the local control terminal issues a fault injection command to the electric physical equipment according to a local control mode A or a local control mode B, wherein the fault injection command comprises a fault type and a fault application position;
step S3, the electric physical equipment receives a fault injection command and adjusts the self state to the initialization state before training;
step S4, the student uses the detection tool to diagnose and remove the fault on the electric material equipment;
step S5, feeding back the change of the state of the electric physical equipment to the local control terminal to form a fault-removing operation record;
and step S6, the local control terminal judges the student according to the fault injection command, the fault removal operation record and the standard fault processing flow.
5. A train electrical fault injection and diagnosis simulation training system, the system comprising:
a real object practical training device;
the other auxiliary equipment is used for providing other linkage simulation working scenes;
the train control unit is in mutual two-way communication with the real object practical training equipment and the other auxiliary equipment and is used for finishing interaction of control commands and state feedback in a linkage control mode;
the virtual simulation unit is in mutual bidirectional communication with the train control unit and is used for providing a scene of electrical fault occurrence and fault diagnosis and elimination operation in a virtual scene in a linkage control mode; the virtual state of the virtual simulation unit is synchronous with the state of the physical training equipment;
the teaching management unit is in mutual bidirectional communication with the virtual simulation unit and is used for editing the training course content and the issuing of the training command of the electrical fault treatment and judging students;
wherein, real standard equipment in kind includes:
the local control terminal is used for storing simulated fault basic data and standard fault processing flow data, injecting electric faults of the train and receiving fault removal operation records of trainees; the simulation fault basic data is a real vehicle electric road schematic diagram or a visual graphic fault library;
the electric physical device is in mutual bidirectional communication with the local control terminal and is used for providing an operation platform for fault injection and diagnosis, so that students can practice on simulated real equipment by adopting a detection tool.
6. The train electrical fault injection and diagnosis simulation training system according to claim 5, wherein the local control terminal comprises a local operation electrical interface, an upper computer and a PLC logic control unit; the local operation electrical interface is in two-way communication with the PLC logic control unit and the upper computer is in two-way communication with the PLC logic control unit.
7. The train electrical fault injection and diagnosis simulation training system according to claim 6, wherein the electrical physical equipment comprises a control unit and an electrical unit; the control unit and the electric unit are communicated with each other; the control unit is provided with a PLC _ I/O interface, and the PLC _ I/O interface and the PLC logic control unit are communicated with each other; the electrical unit comprises a plurality of components.
8. The train electrical fault injection and diagnosis simulation training system as claimed in claim 6 or 7, wherein the train control unit and the PLC logic control unit are connected through MVB bus or Ethernet.
9. The train electrical fault injection and diagnosis simulation training system according to claim 6 or 7, wherein the train control unit has an interface connected with the virtual simulation unit, an interface connected with the teaching management unit, an interface connected with the physical training device, and an interface connected with the other auxiliary devices.
10. The training method of the train electrical fault injection and diagnosis simulation training system according to any one of claims 5 to 9, wherein the method comprises the following steps:
step S1, the instructor edits the training course content of the electric fault treatment through the teaching management unit, issues a training command and executes a linkage control mode A;
step S2, the virtual simulation unit receives training course content and imports the scene of electrical fault;
step S3, the train control unit receives training course content and sends an electrical fault injection command and other work scene import commands to the real object practical training equipment and the other auxiliary equipment which participate in linkage according to the training course content;
step S4, the real object practical training equipment receives a fault injection command and adjusts the self state to the initialization state before training;
step S5, the student completes information report, electric fault position judgment, fault diagnosis and elimination after the electric fault occurs in the virtual simulation unit, and forms a fault removal operation record;
step S6, the train control unit receives the fault-removing operation record and drives the state of the real training equipment to be synchronous with the virtual state;
step S7, the teaching management unit judges the student according to the information report and the fault-removing operation record;
alternatively, the first and second electrodes may be,
the training method comprises the following steps:
step S1, the instructor edits the training course content of the electrical fault treatment through the teaching management unit, issues a training command and executes a linkage control mode B;
step S2, the virtual simulation unit receives training course content and imports the scene of electrical fault;
step S3, the train control unit receives training course content and sends an electrical fault injection command and other work scene import commands to the real object practical training equipment and the other auxiliary equipment which participate in linkage according to the training course content;
step S4, the real object practical training equipment receives a fault injection command and adjusts the self state to the initialization state before training;
step S5, the student reports the information after the fault occurs in the virtual simulation unit and judges the position of the fault, and then the student adopts a detection tool to diagnose and remove the fault on the electric physical equipment;
step S6, feeding back the change of the state of the electric physical equipment to the local control terminal to form a fault-removing operation record and sending the fault-removing operation record to the virtual simulation unit;
step S7, the virtual simulation unit receives the fault-removing operation record and completes the synchronization of the virtual state and the real training equipment state;
step S8, the virtual simulation unit sends information report and troubleshooting operation record to the teaching management unit;
and step S9, the teaching management unit judges the trainees according to the information reports and the fault-removing operation records.
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| CN115064042A (en) * | 2022-06-29 | 2022-09-16 | 河南赛伦交通科技有限公司 | Intelligent circuit fault setting system and method based on railway electric signal principle |
| CN116052496A (en) * | 2022-11-29 | 2023-05-02 | 中铁第四勘察设计院集团有限公司 | System for diagnosing and training braking faults of subway electric bus |
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