Abstract:

Considering the difficulty of real-time monitoring the field equipments interconnected with CAN(Controller Area Network) bus in the small scale industrial production workshop,we put forward a design scheme of embedded test system of CAN-bus based on wireless communication.The test system uses LPC2129 microprocessor as the central controller,uses μC/OSⅡ operating system as software platform,supplemented by nRF2401 modular and LCD（Liquid Crystal Display) monitor,etc.Software programming  completeed communication test program and wireless data transmitting program.Experimental results show that the system can realize CAN field bus network communications test and wireless data transmission.The test system solved the problem of realtime CANbus monitoring in a small space of wiring in difficult condition.

Key words: embedded system, wireless communication, CAN-bus, nRF2401