Miniature wireless sensor design for behavioral analysis on free-roaming laboratory animals

In this paper, a miniature wireless sensor system based on a tri-axis accelerometer is proposed. The sensor system consists of an End Device (ED) and an Access Point (AP). The ED acquires and transmits the accelerometer data operating in the license free 2.4 GHz ISM band. The AP receives and forwards the data packets to the PC through USB virtual serial connection. The small size of the ED allows the device to be mounted on a collar thus the accelerometric data from free-roaming laboratory animals can be observed and processed.