Verification of Optimal Parameters of Thermal-Camera-Based Sensor Using Frame Difference Algorithm for Lighting Control

Abstract

In this paper, we evaluate an effectiveness of parameter optimization of thermal-camera-based sensor using frame difference method to improve an energy saving effect of an occupancy lighting control. Our experiment, which employed data collected in a private office for 8 days, showed that the thermal-camera-based sensor increased the energy saving effect of the occupancy control by 1.90%-2.86% compared with a PIR sensor. The optimization of frame interval parameter, which has not been discussed in the literature, increased the energy saving effect of the thermal-camera-based sensor by 0.96% at the most, thereby accounting for 33.57% of the entire improvement owing to the thermal-camera-based sensor. Further findings and important analysis are included in this paper to achieve improvement of the thermal-camera-based sensor.