Research And Implementation Of Roll Call System Based On Mobile Devices

With the increasing admission rate of college entrance examinations,the enrollment scale of domestic colleges and universities has been expanding,and the education of college students has changed from elite education to mass education.In the classrooms of colleges and universities,traditional paper-based naming has highlighted the problems of long time and low accuracy.Not applicable to today's informational education model.Therefore,it is of great significance to study a low-cost,short-time rollcall system to enhance college attendance,improve classroom efficiency,and improve classroom quality and student quality.Based on the analysis of relevant research status and research results at home and abroad,this dissertation summarizes the advantages and disadvantages of existing attendance systems,and studies and designs mobile-based rollcall systems.The design of the system is determined by the feasibility analysis,demand analysis and functional analysis of the system.Design system function modules,databases and function interfaces in combination with system design.Aiming at the limited number of concurrent wireless routers,a wireless network connection method is designed by using channel allocation and Socket communication technology to meet the needs of large batch users to complete network connection and data communication in batches in a fixed number of channels using mobile devices.In order to improve the accuracy of the naming result,a naming result categorization algorithm is proposed to facilitate the teacher to obtain the intuitive and accurate naming result after exporting the naming information,so as to reduce the burden on the teacher to handle the complicated data.On the basis of the data obtained by the naming result categorization algorithm,the idea of Naive Bayes algorithm is used to predict,and a prediction method is proposed to facilitate the point name to flexibly grasp the rollcall method.On this basis,the design of the callroll system is completed,and the system is tested and improved.The actual use results show that the rollcall system not only greatly reduces the time of class callroll,but also improves classroom efficiency.It takes less than 3 minutes to use the system for 120 named objects,and avoids the breeding of the phenomenon of name generation,effectively improving the accuracy of the rollcall.