Design of data acquisition node based on CAN bus

Xuewen Yu

ShundePolytenchnic,Shunde, GuangdongProvince, 528300,China

Taking single chip microcomputer (SCM) STC90C58AD as control core, a universal CAN bus data acquisition node was designed using CAN bus controller SJA1000 and CAN bus transceiver PAC82C251. Also, the hardware circuit and software design of CAN bus communication were given. Before data collection, current signal has been I-V transformed, and voltage signal has been filtering processed and amplified. Such program is suitable for multi-sensor field data collection in industry.