Motion Analysis and Remote Control System using Pyroelectric Infrared Sensors

Abstract

The paper discusses the possibilities of exploiting infrared radiation for motion analysis and remote control. The human body is considered as the information source and dual-element pyroelectric infrared (PIR) detectors as the sensor system. A dual-element sensor allows the analysis of the motion of objects in one-dimension, therefore it is proposed to place two sensors perpendicularly. Such a method provides the capability of distinguishing eight different commands. An experimental set-up has been developed in order to evaluate the performance of proposed approach. The signals at the sensors output are collected with a DAQ module and acquired data are entered into computer. The error rate of the system and its dependence on sensor-to-object distance are studied. The proposed remote control approach could be used to developed devices for smart houses. Ill. 7, bibl. 7 (in English; summaries in English, Russian and Lithuanian).