Modeling the analog response of passive infrared sensor

被引：21

作者：

Mukhopadhyay, Bodhibrata ^{[1
]}

Srirangarajan, Seshan ^{[1
,2
]}

Kar, Subrat ^{[1
,2
]}

机构：

[1] Indian Inst Technol Delhi, Dept Elect Engn, New Delhi, India

[2] Indian Inst Technol Delhi, Bharti Sch Telecommun Technol & Management, New Delhi, India

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2018年 / 279卷

关键词：

Passive infrared sensor; Sensor modeling; Fresnel lens;

D O I：

10.1016/j.sna.2018.05.002

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Passive infrared (PIR) sensors are sensitive to infrared (IR) rays and are mostly used for motion detection. In this paper we propose a mathematical model that enables better understanding of the analog response of the PIR sensor, the Fresnel lens, and the associated electronic circuitry. The proposed model relates the sensor's analog output waveform to the width of sensing element, and speed of movement and distance of the subject from the PIR sensor. Experiments were performed to capture the sensor's analog output waveform corresponding to the subject's movement through the sensor's field of view (FoV) at different distances, and the relationship of the sensor's peak-to-peak output voltage with distance and speed of the subject. The simulation results are shown to match reasonably well with the experimental results. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：65 / 74

页数：10

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