Title: A human body positioning system with pyroelectric infrared sensor

Authors: Wanchun Zhou; Fangmin Li; Deng Li; Xinhua Liu; Boya Li

Addresses: Hubei Key Laboratory of Broadband Wireless Communication and Sensor Network, Wuhan University of Technology, Wuhan, Hubei, 430070, China ' Hubei Key Laboratory of Broadband Wireless Communication and Sensor Network, Wuhan University of Technology, Wuhan, Hubei, 430070, China ' Hubei Key Laboratory of Broadband Wireless Communication and Sensor Network, Wuhan University of Technology, Wuhan, Hubei, 430070, China ' Hubei Key Laboratory of Broadband Wireless Communication and Sensor Network, Wuhan University of Technology, Wuhan, Hubei, 430070, China ' Hubei Key Laboratory of Broadband Wireless Communication and Sensor Network, Wuhan University of Technology, Wuhan, Hubei, 430070, China

Abstract: This paper aims to improve the accuracy of pyroelectric infrared sensor-based human body positioning system by studying the characteristics of the human body radiation signal. We designed the amplifying and filtering circuits to capture the signals. We also built a human body positioning system. Considering the impact of external interference, the body velocity, the distance between sensors and human target, we propose a new algorithm for the system to interpret the target information in the sensing area considering several impacts. Besides, in the system, the sensing area was divided into smaller grids to make human positioning more accurate. We evaluate the proposed algorithm based on real test-bed and we repeated the experiments for 480 times and validated that the proposed human positioning system can track people with the tracking error for only 0.46 m.

Keywords: pyroelectric infrared sensors; human body positioning; Kalman filter; radiation signals; external interference; body velocity; sensor distance; tracking errors; human tracking.

DOI: 10.1504/IJSNET.2016.078186

International Journal of Sensor Networks, 2016 Vol.21 No.2, pp.108 - 115

Received: 06 Feb 2016
Accepted: 22 Feb 2016

Published online: 05 Aug 2016 *

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