Classroom sign-in system based on openwrt

Abstract

The invention provides a classroom sign-in system based on openwrt. An intelligent wireless router of openwrt receives a data packet sent by a student mobile phone mobile terminal, after student information is obtained, interception, analysis and redirection of the data packet are carried out by means of a netfilter framework of a Linux kernel subsystem, and classroom sign-in of students is carried out. A traditional classroom sign-in mode can be replaced, the workload is reduced, a redirection function is performed in a netfilter framework of a kernel subsystem in Linux, the efficiency of the system is improved, and sign-in operation is simple. And meanwhile, one mobile phone is uniquely identified, so that substitution is prevented, and more effective, more convenient and more accurate classroom information is provided. The system does not need to download an app, does not need to occupy the memory of a mobile phone, and all operations only need to log in an interface through a web end, so that the operation is simple and rapid. And meanwhile, the redirection function can prohibit the student from entertainment through a mobile phone in class, so that the learning efficiency is improved. Classroom information of students can be imported and exported at any time, and a powerful theoretical basis is provided for educational teaching work reform.

Description

technical field [0001] The invention relates to the field of classroom teaching, in particular to an openwrt-based classroom sign-in system. Background technique [0002] At present, many schools still use the traditional manual sign-in method or roll-call sign-in method in the class sign-in work; the manual sign-in method not only consumes a long time, causes the disadvantage of time delay, but also is prone to false sign-in and substitute sign-in, which is not conducive to accuracy. It is difficult to maintain a normal class order by counting the number of people in class. The roll call and sign-in also takes a long time, and it is easy to answer by false names or substitute answers, which disrupts the normal class order and affects the harmonious class atmosphere. A small number of schools use electronic classroom sign-in during class, but students usually download the app for sign-in. Not only is it cumbersome to download for each student, but the system in the app runs...

AI Technical Summary

Problems solved by technology

[0004] The invention provides an openwrt-based classroom sign-in system, which solves the cumbersome statistical information of traditional roll call and sign-in, which is time-consuming and labor-intensive, and is prone to impersonation and substitution. Electronic sign-in needs to download APP, occupy mobile phone memory, and operate Trouble with cumbersome web pages

[0005] The present invention provides an openwrt-based classroom sign-in system, which solves another problem that students can easily use their mobile phones to surf the Internet after signing in in the classroom, and use their mobile phones to do things that have nothing to do with learning, resulting in low teaching efficiency

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