Design Of Student Body Measurement And Monitoring System Based On Internet Of Things

Higher requirements and standards for students’ physical examination are implemented as colleges and universities pay more and more attention to students’ physical fitness.In recent years,more students’ physical examination accidents occurs,how to effectively prevent students’ physical examination accidents has become imminent.In order to solve this problem,this paper designs a student physical examination monitoring system based on the Internet of Things,which increases the remote monitoring of the physical condition of the students during the physical examination,and is committed to reducing the danger of the physical examination of the students,and guaranteeing the safety of the students when carrying out physical examination.The physical examination monitoring system is mainly composed of slave machine,host machine and application software.The slave and the host machine take STM32 as the core,the slave machine is worn on the student’s wrist,and the student’s identity is identified through the RC522 card swiping module.MAX30101 module and the MPU9250 module are used to measure the students’ heart rate,blood oxygen saturation,and acceleration,which transmits the collected data to the host machine through the LORA module.Multiple slaves and the host machines use a star network topology.The host machine mainly receives the identity and data information of multiple slaves in real time through LORA,summarizes the received data,and sends it to the upper monitor.The upper monitor is a host machine program in C# language,which processes and displays the data,filters the waveform through MATLAB,and judges the user’s motion state.The physical examination monitoring system overcomes the deficiencies of traditional heart rate detection products in data calling,summarization and judgment,and provides a safe,simple,and accurate solution for physical examination.The system processes and filters various concise and efficient motion data for students,such as changing from acceleration in multiple directions to combined acceleration for judging the motion state,and perform Kalman rate waves to make motion data more accurate and reliable.At the same time,this design takes into account the slave machine worn on the student’s wrist that needs to be integrated as much as possible,which is one of the purposes of this system to complete the detection without affecting the student’s movement as much as possible.The system can monitor the exercise of at least 30 students at the same time,display the current exercise status of all students in real time,and support the query of students’ previous physical examination data.When a student is in danger,the system will quickly determine the dangerous situation and make an immediate and effective alarm,reminding medical staff and physical education teachers,and reminding students to stop exercising.After a large number of tests and verifications,the test results show that the student physical test monitoring system is accurate in judgment,stable in operation,and has the characteristics of high integration,simple operation,and instant data transmission,which can realize remote monitoring of students’ physical test.