Chip-level design for intelligent human position detection based on PIR sensor

Abstract

Purpose

This study aims to present a novel technique to localize the human position in a room, to manage people in a specified space.

Design/methodology/approach

In this study, a real-time human sensing detection and smart lighting control was designed within a single silicon core. The chip has been successfully realized within 1.5 mm² silicon area using TSMC 0.25 um process.

Findings

This chip can read the weak signal of pyroelectric infrared (PIR) sensor to find the position of human body in a dark room and then help control the smart lighting system for an intelligent surveillance system.

Originality/value

This chip presented the retriggering delay control to expand the LED lighting time infinitely to avoid lighting-off suddenly while users stay on a space. This function is very useful in a practical intelligent surveillance system that is mainly based on human detection to better reduce power dissipation and memory space.

Citation

Hsia, S.C., Wang, S.-H. and Chen, H.-L. (2022), "Chip-level design for intelligent human position detection based on PIR sensor", Sensor Review, Vol. 42 No. 5, pp. 526-536. https://doi.org/10.1108/SR-09-2021-0331