Design And Implementation Of Automatic Testing And Sorting Teaching System For Electronic Equipment And Components

Widely thriving electronic and information industry brings electronic equipment and components about a higher level evolution,and the prosperity of intelligent manufacturing has led to the rapid increase in requirements for automatic testing and sorting systems.The types,functions,scales,and complexity of electronic equipment and components continue to increase.Therefore,the automatic test and sorting system for them needs to continuously improve the applicability and flexibility.The rapid increase in the demand for electronic equipment and components has also made the use of automatic testing and sorting systems more widespread.In the school’s training system,the importance of courses in intelligent manufacturing,automatic testing,and robot control is increasing,and the demand for practical teaching is constantly expanding.Based on the ascendancy of the school’s automatic testing major and control major,an automatic testing and sorting teaching platform for electronic equipment and components is completed and verified,for the purpose of meeting the requirements of courses and teaching as well as cultivating engineers and experts of automatic testing and sorting.After analyzing the test requirements of four types of devices under test,including discrete devices,component modules,integrated circuits,and complete electronic equipment,test schemes are researched and designed by taking specific devices under test and test indicators as examples,and finally completed construction of the entire platform and experimental cases.The main achievements are as follows:1)The teaching requirements and testing-sorting requirements of the teaching platform are comprehensively analyzed,which offers the overall hardware and software architecture.Based on this,it is divided: the measurement and control computer platform is used as the upper computer,the instrument platform,the robotic arm platform,and the on-site control platform are the overall plan of the lower computer,which clarifies the function division of each sub-platform,and the overall automatic testing and sorting process.2)According to the four types of equipment under test,the requirements and functions of each sub-platform are specified,and the experimental teaching platform is determined to provide: LXI hardware connection of the instrument platform and control methods such as SCPI and IVI based on VISA,excitation and test schemes for RF signal generators and mixed domain oscilloscopes;robotic arm control schemes for robotic arm platforms,connection configuration schemes for external I/O components;Raspberry Pi logic control schemes for field control,FPGA signal excitation and processing scheme;the general scheme of the UI interface,interaction logic and business logic of the upper computer,as well as the network communication scheme and process synchronization scheme of the entire platform.3)According to the hardware architecture of the testing and sorting teaching platform,the adapter board is designed and implemented to complete the interconnection of the sub-platforms,and on this basis,the adapter board and adapter are designed and implemented for the four types of devices under test.Combined with the specific test plan,the test and sorting of the four specific tested equipment have been completed.The results show that the teaching platform designed in this paper can complete automatic testing and sorting for different types of equipment under test,the data and information transmission between the sub-platforms is reliable,and the system has good applicability and teaching.