Design of electrical certificate examination system based on virtual simulation technology

The traditional maintenance electrician examination and certification usually includes four items, which are theoretical project examination, troubleshooting project examination, welding plate project examination and PLC project examination. The PLC assessment projects are often limited by the site and equipment, which leads to the problems of heavy workload and low efficiency in the assessment process of this project. Therefore, in order to improve this situation and improve the efficiency of assessment, this paper takes PLC project assessment as an example, and puts forward a virtual simulation technology based assessment system design scheme. The program only needs PLC related software to complete the project assessment content (including PLC program design, simulation debugging, operation monitoring, etc.). It gets rid of the limitation of site and equipment and improves the assessment efficiency, which is a beneficial attempt to reform the traditional assessment method.