Parking Detection Using Combined Magnetic Sensor and Pulsed Coherent Radar

被引：11

作者：

Zhang, Zusheng ^{[1
]}

He, Xianmang ^{[1
]}

Huang, Jinwang ^{[1
]}

Yuan, Huaqiang ^{[1
]}

机构：

[1] Dongguan Univ Technol, Sch Cyberspace Secur, Dongguan 523808, Peoples R China

来源：

IEEE INTERNET OF THINGS JOURNAL | 2022年 / 9卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Dempster-Shafer evidence; Internet of Things; magnetic sensor; pulsed coherent radar; vehicle detection;

D O I：

10.1109/JIOT.2022.3151987

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

With its potential to solve the problem of car parking difficulties, smart parking management systems have elicited a significant amount of interest from both academia and industry. Robust and reliable parking detection is a key technology for smart parking management systems. Presently, magnetic sensors are being widely used in parking detection. However, they are prone to produce high false and missed detection rates in environments that have geomagnetic interference. This article proposes a new sensing device based on the combination of a magnetic sensor and a pulsed coherent radar. The sensing device is used for parking detection in the context of Internet of Things. A Dempster-Shafer evidence theory-based collaborative fusion approach is developed to improve the accuracy of vehicle detection. Pulsed coherent radar is triggered by the magnetic sensor to reduce sampling power consumption. The prototype system is tested under various interference conditions. The results show that the combination of magnetic and radar sensors improves vehicle detection accuracy, and the lifetime of battery-powered sensor node is longer than five years.

引用

页码：17210 / 17219

页数：10

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