Design And Implementation Of Secure Real-time Intelligent Vehicle Management Communication System

Zhejiang University ESE engineering center has developed the new generation intelligent vehicle. It takes clean energy as power, at the same time, only half volume of the traditional car. It tries to reduce the negative effects of environment pollution and urban congestion which the traditional car brings.As an important part of the project, intelligent vehicle management communication system is responsible for communication of intelligent vehicle、server and APP client. In the first edition, the system used the UDP protocol and the HTTP protocol for communication. It can satisfy the basic communication requirements. But, there are problems of unreliability, insecurity, time delay and high network flow cost. Aimed at solving these problems and based on the actual situation of the intelligent vehicle, this paper designs and implements a secure and real time vehicle management communication system. The main work is as follows:First, design and implement the TCP long connection communication component, which is responsible for the communication between intelligent vehicle and server. TCP is a connection oriented、reliable、full duplex protocol, which can guarantee reliable and timely message delivery.Second, design and implement secure communication protocol which is suitable for intelligent vehicle. In this protocol, the MD5 algorithm is used for generating session key while the RSA algorithm is used for transferring session key. And the AES algorithm is used for encrypting communication message while the BKDR algorithm is used for calculating message digest.Third, design and implement the WebSocket real-time communication component, which is responsible for the communication between the APP client and server. The server can push message to client by using WebSocket technology, which has significant performance advantages over traditional polling mode.