| With the continuous improvement of people’s living standard, people on the safety of the public and household intelligence put forward higher requirements, security problem has become the focus of people gradually increasing attention, invented a kind of advanced technology for intelligent entrance guard system Place is necessary.And wi-fi Direct as a kind of communication protocol based on wi-fi allows entrance guard system server and the user’s communication distance is far, also can let the client and server information to interact without hot spots, can register to register directly by the client and relevant information sent to the server database to store, don’t need the user is very close to the entrance guard system to control to the user to bring the experience of a certain distance control entrance guard system.In recent years the rapid development of embedded system, because of its good portability and kernel system can be cut, widely used in the Internet of things and smart home, which reduced the development cost and convenient and quick.With the rapid development of mobile APP and smart mobile devices, before must travel wallet, mobile phone, key can have gradually replaced with smartphones.Thus, the latest research of the entrance guard system in enhancing the safety of the smart mobile devices at the same time as the door of the certificate, to provide more convenient and better user experience, with the development of the current hot mobile intelligent mobile equipment of access control system, can be used as into multiple IT systems, and other buildings use WiFi, bluetooth and NFC applications such as general vouchers, these intelligent mobile device let users to open the door is particularly convenient, but also can perform other tasks need to be providing security credentials at the same time.Wi-fi Direct although can provide both the client and server interaction between distance and quickly, but also because of its remote application in the entrance guard system there are some unsafe factors, such as the client can remote control service side entrance guard system and lead to unsafe, in order to be able to identify the uniqueness of also need to add the task of security credentials, such as audio/video contrast certification and so on.So, here we put forward a kind of based on wi-fi Direct the design and implementation of embedded entrance guard system authentication method.First, the technology and the development of entrance guard system present situation and the existing problems and wi-fi Direct in the application prospect of intelligent mobile devices, put forward in this paper, the functional requirements of system, system design goal and overall design of the system.Second, (1) the transplantation of the Android system and related drive write (2) the audio voice or video broadcast system (used to access the audio or video authentication to identify, solve the problem of the uniqueness of the entrance guard system identification, ensure that users enter the condition), (3) via wi-fi Direct and intelligent mobile distance and rapid interaction system and audio or video information comparison system, etc.Third, software design, including wi-fi Direct one-to-many communication, management and related application software design of access control information, including the client’s design includes the user’s manual registration and automatic login module and gathering audio or video information from the server module.Fourth, this paper provides about entrance guard system authentication method is an innovative design scheme of using wi-fi Direct solution for users to interact with the server problems, communication distance with audio and video authentication method to solve the problem to identify the uniqueness of contrast.The corresponding results, and the system test show, summary and analysis, for the subsequent development of access control system and related application development to provide the reference. |
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