Indoor Occupancy Estimation Using Particle Filter and SLEEPIR Sensor System
Indoor Occupancy Estimation Using Particle Filter and SLEEPIR Sensor System
复制标题
使用粒子过滤器和 SLEEPIR 传感器系统估计室内占用情况
DOI:
10.1109/jsen.2022.3192270
复制
发表时间:
2022
影响因子:
4.3
通讯作者:
Wang, Ya
中科院分区:
文献类型:
--
作者:
Emad-ud-Din, Muhammad;Chen, Zhangjie;Wu, Libo;Shen, Qijie;Wang, Ya
We recently developed a synchronized low energy electronically chopped passive infrared (SLEEPIR) sensor that can detect both stationary and moving occupants by incorporating a liquid crystal (LC) shutter with a traditional passive infrared (PIR) sensor. However, its detection accuracy is still largely impacted by environmental infrared noises. In this paper, we present a Particle Filter (PF) based system-level algorithm that employs a network of SLEEPIR sensors which are installed at different points of interest within an indoor space. The method interprets the incoming observations from the field of view (FOV) of each sensor via the likelihood function to update the state of the PF. The PF output is a probability density function (pdf) that represents the occupancy state of the entire observed space. The sensor location, observation cone, range, observation frequency and historic inter-sensor correlation are the key parameters that contribute to the likelihood function design. Since the method utilizes the historic correlation among sensors, the pairs of correlating sensors often perform self-correction whenever a faulty observation is encountered due to either sensor limitations or due to environmental noise. Occupancy is established through a thresholding function applied to the output pdf of the PF. A lab-based dataset was collected over a period of 360 hours using the SLEEPIR sensor system. Results indicate an average 8.25% occupancy accuracy improvement when compared to the accuracy state delivered by individual SLEEPIR nodes.
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DOI:
--
发表时间:
2020
期刊:
影响因子:
--
作者:
Libo Wu;Ya Wang
通讯作者:
Ya Wang
影响因子:
4
作者:
Liu, Haili;Wang, Ya;Lin, Hanbing
通讯作者:
Lin, Hanbing
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
H. Pulkkinen
通讯作者:
H. Pulkkinen
影响因子:
4.3
作者:
Shuai Zhang;Kaihua Liu;Yunlei Zhang;Ya Wang
通讯作者:
Ya Wang
影响因子:
2.8
作者:
Libo Wu;F. Gou;Shin‐Tson Wu;Ya Wang
通讯作者:
Ya Wang