基于地磁传感器和UWB技术的停车位车辆检测方法与实现  

Parking Vehicle Detection Method and Implementation Based on Geomagnetic Sensor and UWB Technology

作　　者：张增超 李强[2,3] 孙红雨 楼亮亮 ZHANG Zengchao;LI Qiang;SUN Hongyu;LOU Liangliang(College of Electronic,Communication and Physics,Shandong University of Science and Technology,Qingdao Shandong 266950,China;Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China;Shanghai Research Center for Wireless Communications,Shanghai 200050,China)

机构地区：[1]山东科技大学电子信息工程学院,山东青岛266590 [2]中国科学院上海微系统与信息技术研究所,上海200050 [3]上海无线通信研究中心,上海200050

出　　处：《传感技术学报》2019年第12期1917-1922,共6页Chinese Journal of Sensors and Actuators

基　　金：国家自然科学基金项目(61701284);中国博士后科学基金项目(2016M602165);山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地开放基金项目(MDPC201715);山东省重点研究开发项目(2018GHY115022);山东省自然科学基金项目(ZR2017MF070);青岛博士后应用研究项目(2016113);国家科技重大专项基金项目(2017ZX03001003-002)

摘　　要：针对单地磁传感器在进行车辆检测时容易受到相邻车位车辆干扰,以及使用传统阈值判决方法存在漏检与误检问题。为提高停车位车辆检测的准确率,对传统地磁阈值判决方法做出改进,提出了一种基于地磁传感器与超宽带(Ultra Wideband,UWB)技术结合的停车位车辆检测方法。当根据单地磁传感器无法确定停车位状态时,唤醒UWB测距功能,将测距结果与地磁信号融合来提高检测准确度。实验结果表明本文所提方法相比于单地磁检测方法可提高约6.0%的准确度。Traditional threshold based single geomagnetic detection method is easy to be interfered by the adjacent parking space vehicle when performing vehicle detection,resulting in high missing detection and false detection probability.In order to improve the accuracy of parking vehicle detection,the traditional geomagnetic threshold decision method is improved,and a parking vehicle detection method based on the fusion of geomagnetic sensor and ultra wideband(UWB)technology is proposed.When the parking state cannot be determined according to the single geomagnetic signal,the UWB ranging function is awakened,and the ranging result is combined with the geomagnetic signal to improve the detection accuracy.The experimental results show that the proposed method can improve the accuracy by about 6.0%compared with the single geomagnetic detection method.

关 键 词：车辆检测 UWB技术 地磁传感器 数据融合 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]