Research On Key Technologies Of Wi-Fi Direct Attendance System

With the rapid development of the social modernization,the change of science and technology Service becomes more and more intense,the modern science and technology is becoming more and more personalized,ubiquitous and intelligent,while the traditional attendance system has various problems,which can not meet the needs of people.How to set up a quick and convenient attendance system has become the focus of people's attention.In recent years,based on the rapid development of the Android system,people are increasingly inseparable from the smart phone,because of its good portability and core system of the cutting,widely used in the Internet of things and intelligent home,that is,reduce the cost of development and convenient,it is used in attendance service is the inevitable trend of future development.Wi-Fi Direct as a Wi-Fi based communication protocol allows the client and server information without hot spots can be interactive,through the client direct registration and registration and related information sent to the server's database to save,The Wi-Fi direct connection mode can be one-to-one or one-to-many topologies,fast search,so that students do not waste too much time and without the flow of the situation to complete the attendance,to achieve our expected effect,to achieve real fast,both convenient and safe,but also to improve the efficiency of university classroom attendance.Therefore,we put forward a kind of attendance system based on Wi-Fi Direct,and verify and measure the congestion of its key technology,that is,search discovery equipment.This paper mainly from the following aspects of the work:(1)This paper realizes the key technology of the attendance system based on Wi-Fi direct,uses the Wi-Fi direct technology to find the point-to-point search among the equipments,joins the timer to record the congestion time of the equipment discovery,and the number of devices found,the name of the equipment,The device address and the device appear at the current time of the list to write text in a folder that is stored inside the phone.(2)Firstly,the software system implemented in this paper is tested in a small scale,and the experimental results are analyzed and discussed,and the results show that the time of the equipment is linearly related to the number of phone devices,the correlation coefficient of the two is 0.987,close to 1,which indicates a strong correlation between the two.In order to further verify the experimental results,a large range of tests were conducted and the results were found to be consistent with the small range test results.In this paper,the problems encountered in the testing process are recorded,and according to the experimental results of the equipment found congestion time analysis and research,for the follow-up development to provide a certain reference.