Terminal System Design For Internet Of Vehicle

In recent years, extensive attention has been paid to "Internet of Things" As a branch of "Internet of things", "Internet of vehicles" has also obtained great social recognition. Now the technology has already been a mature application to intelligent transportation.This paper is based on the engineering projects "Development a System of Control and Communication for Drilling Robot". It focuses on the "Internet of vehicles". Design and develop a integrated terminal system which was applied to the construction vehicles with "Internet of vehicles" technology. The system implements automatic vehicle control, Man-machine interactive display, remote/field monitoring, maintenance and so on, in order to improve the control security intelligence and provide convenience for vehicle maintenance.Firstly, This paper does a in-depth survey of the "Internet of things" and "Internet of vehicles", and make a conclusion of the necessary and feasibility of combination the "Internet of vehicles" and construction vehicles. Then according to the requirement, design an architecture of terminal system, propose a "Master-Slave CPU" solution based on DSP+MCU architecture, with the peripheral of Data Acquisiton, storage, display, control, communication units.This paper puts emphasis up on the Master processor, include hardware circuit design, device drivers and application software development. The Master processor is ADSP-BF548. Storage units consist of DDR, NAND FLASH, SPI FLASH.18-bit LCD and 4*4 keypad comprise Man-machine interactive unit. With GPS and GPRS technology, the System realizes Vehicle positioning and remote communication, including remote controlling, maintenance, management. With the CAN bus, the system achieve the Local communication among the Master CPU, slave CPU and Engine Unit. The paper also involves the application communication protocol based on TCP/IP and CAN2.0B.At last, this paper makes a description of the system robustness by doing field test, and gives the effective solution to the problems. Develop a Client Software on PC to implement the system maintenance. Practice has shown that the system accomplishes the purpose and performs well, therefore the paper puts forward to the prospect of the later work.