CN104408247A - Method for simulating troubleshooting training of complex electrical system - Google Patents

Abstract

The invention discloses a simulation method for troubleshooting and training of complex electrical systems, which comprises the following steps: step 1, establishing a three-dimensional model of a database and a workload; , realize the association, and trigger the fault phenomenon through the fault database; step 3, after the fault is triggered, measure the test points of each component in the database as the basis for fault reasoning and discrimination; step 4, when there is a problem with the line connection, you can reconnect Connect; when a suspected faulty part is found, the part can be replaced through the replacement function; step 5, restart the machine, and verify whether the fault is resolved according to the operating rules. The advantage of the invention is that it not only realizes the high-fidelity effect basically consistent with the appearance, operation logic, working principle and voltage characteristics of the actual electrical equipment, but also has the function of editing faults to achieve unlimited expansion of fault examination questions.

Description

A Simulation Method for Troubleshooting Training in Complex Electrical Systems

technical field

The invention relates to electrical systems, in particular to troubleshooting of electrical systems.

Background technique

At present, the training of electrical troubleshooting ability is mainly carried out on the actual electrical equipment, on the teaching system or by simple question and answer methods. However, these methods are limited by the fact that faults are not easy or not allowed to be set, and faults are easy to expand, or the operating principle and mechanism cannot be highly consistent with the actual electrical equipment, or the increase in the number of fault questions requires a large hardware cost, resulting in training The cost is high, etc. Therefore, they are not suitable as the main tool for training the ability to troubleshoot complex electrical systems.

Contents of the invention

In order to solve many deficiencies in the existing electrical troubleshooting training methods, the present invention provides a simulation training method for electrical equipment troubleshooting. Consistent high-fidelity effect, but also has the function of editing faults, to achieve unlimited expansion of fault examination questions.

The present invention does not need any connection relationship with actual electrical equipment, and belongs to software simulation. The basic idea is:

The maintenance training of complex electrical systems focuses on the reasoning of logical thinking in troubleshooting. When a fault occurs in the electrical system, the maintenance personnel will generally check the actual equipment for indication information, whether the connection is loose, whether the working voltage is correct, etc., and then judge step by step to locate the fault point. Therefore, the simulation method should be able to fully display the actual scene, provide various inspection interfaces, etc., so that it can be used for judgment, analysis and decision-making just like actual troubleshooting.

The specific implementation is as follows:

Establish an equipment model database, extract common features according to the operating characteristics and response characteristics of various types of components in the electrical system, and establish equipment component information tables, indicator light components and non-restricted component information tables. Its initial state information is stored in the corresponding table of the simulation database in the form of records. Among them, the panels and internal panels of each equipment are all using physical photos to achieve the same appearance as the actual equipment.

Establish a 3D model of the workload, controlled by the operating rules of the equipment, and simulate the operation effect consistent with the actual equipment.

Establish an operation rule library, which records the description of the operation rules corresponding to all the operation steps of the electrical system. Each operation step is recorded by several pieces of information related to the operation, such as step code, operation part, operation part category, and the state of the operation part before operation , The state of the operating part after operation, the affected part, the type of the affected part, the state of the affected part before the operation, the state of the affected part after the operation, etc., to achieve consistency with the actual equipment operation logic and status response;

Establish a fault database, including the triggering timing of electrical system faults, fault phenomena, electrical characteristics and fault locations, etc., to achieve consistency with the actual equipment fault status.

Establish an equipment inspection tool library, use a virtual multimeter to measure the electrical characteristics of each test point, use cable connection inspection tools to simulate the judgment of line connection looseness, line connection correctness, etc. Click to exclude.

Each component in the equipment model database responds separately through operation rules to achieve association, such as button actions, corresponding lights and instrument indications, etc., and triggers fault phenomena through the fault database. The 3D model of the load also responds through the operation rules, simulates the actual operation of the actual equipment, and triggers the fault phenomenon through the fault database.

After the fault is triggered, the test points of each component in the equipment model database can be measured through the inspection tool library, which can be used as the basis for fault reasoning and judgment. When a problem is found in the line connection, it can be reconnected; The replacement function replaces the part; finally restart the machine, operate according to the operating rules, and verify whether the fault is resolved. If resolved, complete troubleshooting for this fault. Otherwise, continue to check.

A fault editor is set up, the triggering timing of the fault, the phenomenon of the fault, the electrical characteristics and the fault location can be modified or added or subtracted through the editor, so as to realize the unlimited expansion of the fault database.

According to the above method, the fault simulation and troubleshooting training of complex electrical systems can be realized, which is realistic and practical.

The present invention belongs to software implementation, which can integrate an infinite variety of equipment and their faults. The unlimited expansion of its training topics not only meets the training needs, but is not restricted by equipment and equipment, and alleviates the needs and expenses of maintenance training for real maintenance experience to the greatest extent. The contradiction among restrictive factors such as restriction, time restriction, physical condition restriction and safety restriction is a low-cost and high-efficiency training method, which has very important engineering application value.

Description of drawings

Fig. 1 Schematic diagram of operation principle for troubleshooting complex electrical systems.

Detailed ways

The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1 of the present invention: Simulation of a certain type of vehicle starting abnormal fault

After the car is started, there may be some abnormal responses such as some indicator lights or meters not correctly indicated due to some electrical faults. At this time, maintenance personnel are required to troubleshoot it.

The specific simulation method is:

Step 1: Select the fault type

Through the man-machine interface of the training software, select the simulated fault type "abnormal startup fault" (including fault parameters).

Step 2: Fault Simulation and Troubleshooting

(1) According to the fault type, parameters such as the triggering timing of the fault, the phenomenon during the fault, the electrical characteristics and the fault location are obtained;

(2) According to the fault parameters, during the start-up operation of the electrical system, gradually output the fault-simulated data such as fault indication and electrical status.

(3) According to the given fault phenomenon and the working principle of the electrical system, use a virtual multimeter to test each relevant signal point, analyze and judge step by step, and after locating the fault point, replace the faulty device components, and then restart the electrical system system, and observe whether the fault is eliminated. If the fault still exists, continue to check until the fault is eliminated.

Embodiment 2 of the present invention: simulation of a certain equipment running jitter fault

During the working process of the CNC machine tool, some electrical faults will cause abnormal response of the equipment to vibrate. At this time, maintenance personnel are required to troubleshoot it.

The specific simulation method is:

Step 1: Select the fault type

Through the man-machine interface of the training software, select the simulated fault type "running vibration fault" (including fault parameters).

Step 2: Fault Simulation and Troubleshooting

(1) According to the fault type, parameters such as the triggering timing of the fault, the phenomenon during the fault, the electrical characteristics and the fault location are obtained;

(2) According to the fault parameters, after the electrical system is started, output the three-dimensional scene of equipment operation jitter, other fault indications and electrical status after fault simulation.

(3) According to the given fault phenomenon and the working principle of the electrical system, use a virtual multimeter to test each relevant signal point, analyze and judge step by step, and after locating the fault point, replace the faulty device components, and then restart the electrical system system, and observe whether the jitter fault is eliminated. If the fault still exists, continue to check until the fault is eliminated.

Embodiment 3 of the present invention: a large printing machine cannot start fault simulation

During the start-up process of the printing press, some electrical faults may cause the abnormal response of the equipment to fail to rotate. At this time, maintenance personnel are required to troubleshoot it.

The specific simulation method is:

Step 1: Select the fault type

Through the man-machine interface of the training software, select the simulated fault type "non-rotating fault" (including fault parameters).

Step 2: Fault Simulation and Troubleshooting

(1) According to the fault type, parameters such as the triggering timing of the fault, the phenomenon during the fault, the electrical characteristics and the fault location are obtained;

(2) According to the fault parameters, during the start-up operation of the electrical system, the data after fault simulation such as fault indication and electrical characteristic data are gradually output.

(3) According to the given fault phenomenon and the working principle of the electrical system, use a virtual multimeter to test each relevant signal point, analyze and judge step by step, and after locating the fault point, replace the faulty device components, and then restart the electrical system system, and observe whether the fault is eliminated. If the fault still exists, continue to check until the fault is eliminated.

The fault simulation and troubleshooting method of the present invention have been tested in practice through the implementation of the above-mentioned artillery electrical system fault troubleshooting simulation training, which shows that the method has good effect and has very important engineering application value.

Claims (7)

1., for an analogy method for Complex Electrical System malfunction elimination training, it is characterized in that, comprise the following steps:

The three-dimensional model of step one, apparatus for establishing model database, operation rule library, Mishap Database, equipment inspection tool storage room and operating load;

Each parts in step 2, device model database and load three-dimensional model are responded respectively by working rule, realize association, and by Mishap Database, trigger fault phenomenon;

Step 3, fault are measured, as fault reasoning distinguishing rule by the test point of checking tool storehouse to parts each in device model database after triggering;

Step 4, when finding that connection has a problem, can to reconnect; When finding suspected malfunctions parts, can by changing function by this part replacement;

Step 5, again start shooting, according to working rule operation, whether validation fault solves, if solve, then completes the investigation of this fault, otherwise, continue investigation.

2. a kind of analogy method for the training of Complex Electrical System malfunction elimination according to claim 1, it is characterized in that, the device model database of described step one, according to operating characteristic and the response characteristic of parts all types of in electrical system, extract common feature, the part of appliance information table of foundation, indicating lamps parts and untethered base part information table.Its initial state information is all stored in during simulation data base shows accordingly with the form of record.Wherein, the panel of each equipment and interior panels etc. all use photo in kind, and realization is consistent with physical device outward appearance.

3. a kind of analogy method for the training of Complex Electrical System malfunction elimination according to claim 1, it is characterized in that, the operation rule library of described step one have recorded working rule corresponding to electrical system all operations step and describes, each operation steps operates relevant information record by some with this, as step coding, functional unit, functional unit classification, the state of functional unit before operation, the state of functional unit after operation, affect parts, affect component categories, the state of parts is affected before operation, the state etc. of parts is affected after operation, what realize with physical device operation logic and condition responsive is consistent.

4. a kind of analogy method for the training of Complex Electrical System malfunction elimination according to claim 1, it is characterized in that, the Mishap Database of described step one, comprise the trigger timing of electrical malfunction, the contents such as phenomenon during fault, electrical specification and trouble location, realization is consistent with physical device malfunction.

5. a kind of analogy method for the training of Complex Electrical System malfunction elimination according to claim 1, it is characterized in that, the equipment inspection tool storage room of described step one, the electrical specification of Virtual Multimeter to each test point is used to measure, use cable to connect the judgement of loosening property of checking tool simulated implementation connection, connection correctness etc., use the mode such as connection, device part replacement to get rid of trouble spot.

6. a kind of analogy method for the training of Complex Electrical System malfunction elimination according to claim 1, it is characterized in that, the three-dimensional model of the operating load of described step one, the working rule by equipment controls, and simulates the running effect consistent with physical device.

7. a kind of analogy method for the training of Complex Electrical System malfunction elimination according to claim 4, it is characterized in that: described Mishap Database, describedly set up fault editing machine, the trigger timing of described fault, the contents such as phenomenon during described fault, described electrical specification and trouble location all can be revised by editing machine or increase and decrease, to realize the unlimited expansion of Mishap Database.