Design Of Online Reality Experiment System For Electronic Circuit

The emergence of COVID-19 in 2020 brought challenges to traditional education methods.Many offline courses need to be completed online,making online education one of the hottest topics in the field of education.In the experimental teaching of traditional engineering majors,the progress of experimental courses are always affected by time and space.In order to improve the traditional education methods of electronic circuit experiment and adapt to the online education mode in the post-COVID-19 era.In this paper we design and implement the electronic circuit online reality experiment system.As opposed to virtual simulation experiment system,the system aims to provide an online experiment system which can obtain real data for the course of electronic circuit design,test and experiment.The system integrates the cutting-edge technology of electronic information and communication along with the internet of things,which fully embodies the concept of "technology serves to teaching".The system is designed by a modular way.The whole online experiment system is abstracted into three parts: unit circuit experiment board,basic hardware experiment platform and online operation experiment platform.Thanks to the B/S architecture,the system is of good scalability and maintainability.Among these three parts,the design of the basic hardware experiment platform includes several basic service modules such as power supply,signal source,oscilloscope and communication.The online operation experiment platform contains the design of multiple circuit experiment pages and information management system through the mode of separation of front and rear ends.The design of unit circuit experiment board mainly completes the experiment board which can change the circuit structure and important device parameters online.Taking BJT common-emitter amplifier circuit experiment and integrated trigger circuit experiment as examples,the system has been tested in detail.The system has a test run in some classes of the school and gets good responses from students.