Bus data acquisition and romote monitoring system based on CAN bus and GPRS

Recently, attentions are focused more on bus interior network application and the wireless bus-carry data transmission technology. For developing a remote monitoring system, three aspects of the system are discussed: the vehicle interior network configuration, the CAN/GPRS gateway realization and the remote monitoring server design. Described in the paper are the hardware and software design of the system, designing of bus interior network and the CAN/GPRS protocol conversion. Contents include GPRS wireless networking and remote monitoring.

I. Introduction

With the development of automotive electronic technology, more and more electronic control and display unit is fitted to the bus. Together with the sensor and actuator, they form a number of sophisticated electronic control system. In order to transfer large amounts of data and exchange of different signals between electronic control systems on the bus vehicle. Vehicle interior network came into being. CAN (Controller Area Network, CAN); relying on its stability performance, low price and high reliability and real-time, has now been widely used in automotive internal network.