Design And Implementation Of Active Wireless Network Access Management Attendance System

With China’s higher education entering a new stage of popularization and development,the growth of the number of students has put forward new requirements for the attendance management of colleges and universities.At present,the manual roll call method commonly used in colleges and universities has problems such as low efficiency and error-proneness,and it is difficult to meet the needs of today’s colleges and universities.Therefore,the study of a small portable independent network attendance system suitable for teaching,meetings and other scenarios,to achieve accurate and fast attendance has certain practical value for saving class time and improving management efficiency.This dissertation uses wireless network access authentication technology to construct an active wireless network access model based on RADIUS protocol.This model effectively avoids the insufficiency of a single wireless access point that cannot meet the high concurrent connection requirements in attendance scenarios,and ensures the stability of the system’s attendance data transmission in high-volume,high-density user scenarios.On this basis,an active wireless network access management attendance system was designed and implemented.The system uses a small ARM embedded development board as the hardware operating environment,with complete independent wireless local area network networking and data processing capabilities.Users can participate in attendance by connecting wireless devices such as mobile phones to the attendance network established by the system itself,without using additional data traffic.In order to improve the effective utilization rate of the channel,aiming at the problem that the number of users in the attendance process is far greater than the channel limit of the system’s own wireless access point,the Portal technology is used to effectively integrate the access authentication of the attendance network with the check-in steps of the attendance system,so that the users can complete the attendance check-in at the same time of the network access authentication,to achieve the purpose of shortening the user occupation of network channel time.In order to release the wireless channel resources occupied by users who have completed the attendance,the active wireless network access model is used to manage the wireless clients in the attendance network.When the user successfully attends,the system immediately closes the connection of the user who has completed the attendance,eliminating the problem of idle clients occupying the channel.The system can complete the functions of setting up a wireless local area network,receiving and processing attendance data without the help of any external equipment,and has the characteristics of self-organizing network,easy to carry,convenient and quick to use.The test results show that compared with the existing attendance methods,the attendance system designed based on the active wireless network access model effectively shortens the attendance time,significantly improves the carrying capacity of concurrent attendance data,and achieves accurate and fast attendance.