Abstract
Nowadays, the majority of industrial field buses are lineate, so they are complicated and more cost. The paper designs a wireless data acquisition system based on the chip of nRF401. The system can be installed anywhere easily, and can acquisite the data of several different points at the same time. This low-cost system overcomes the shortcomings of the cable network. With the special case of temperature data collecting, the detailed hardware circuits of the wireless data acquisition system were designed in the paper. PC inquiries temperature data one time per second. The specific format of communication protocol is given. The system features quickly data transmition, more reliable, so it can be used in a variety of industrial fields.
Keyword: data acquisition, wireless transmission, DS18B20
