상세정보
학술지
Reduction of False Alarm Signals for PIR Sensor in Realistic Outdoor Surveillance
- 발행일
- 201302
- 출처
- ETRI Journal, v.35 no.1, pp.80-88
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 11DC1300, 감시정찰 센서네트워크 기본설계 및 검증 기술, 표철식
- 초록
- A passive infrared or pyroelectric infrared (PIR) sensor is mainly used to sense the existence of moving objects in an indoor environment. However, in an outdoor environment, there are often outbreaks of false alarms from environmental changes and other sources. Therefore, it is difficult to provide reliable detection outdoors. In this paper, two algorithms are proposed to reduce false alarms and provide trustworthy quality to surveillance systems. We gather PIR signals outdoors, analyze the collected data, and extract the target features defined as window energy and alarm duration. Using these features, we model target and false alarms, from which we propose two target decision algorithms: window energy detection and alarm duration detection. Simulation results using real PIR signals show the performance of the proposed algorithms. © 2013 ETRI.
- KSP 제안 키워드
- Decision algorithm, Energy Detection, Environmental change, False Alarm, Indoor Environment, Moving Object, Outdoor environments, Passive infrared, Surveillance system, Target Features, pyroelectric infrared (PIR) sensor