| 基于主动磁检测技术的车辆检测新方法 |
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| 引用本文： | 黄杏,皇彦锋.基于主动磁检测技术的车辆检测新方法[J].国外电子测量技术,2011,30(11):79-82. |
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| 作者姓名： | 黄杏 皇彦锋 |
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| 作者单位： | 西北工业大学航海学院,西安,710072 |
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| 摘 要： | 为了给智能交通管理系统提供交通信息,提出了一种车辆检测的新方法.主动磁检测器包括一个发射线圈和一个接收线圈,发射线圈持续地辐射交流磁场,当车辆从检测器上方通过时,车辆的金属外壳中就会产生涡电流,从而产生涡流二次场,那么接收线圈周围的磁场就会发生改变.通过测量接收线圈周围的磁场是否改变来达到检测车辆的目的.检测概率为96...
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| 关 键 词： | 车辆检测 涡流二次场 自适应基线更新 主动磁检测 |
Novel method of vehicle detection based on active magnetic detection |
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| Huang Xing,Bai Yanfeng.Novel method of vehicle detection based on active magnetic detection[J].Foreign Electronic Measurement Technology,2011,30(11):79-82. |
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| Authors: | Huang Xing Bai Yanfeng |
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| Affiliation: | Huang Xing Bai Yanfeng(School of Marine Engineering,Northwestern Polytechnical University,Xi’an 710072,China) |
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| Abstract: | This paper presents a novel method of vehicle detection to provide traffic information for Intelligent Transportation Systems.The active magnetic detector contains an transmitting coil and a receiving coil.The transmitting coil radiates AC magnetic field continuously.When a vehicle body moves over the detector,eddy current is formed in the vehicle metal shell and the eddy current generates eddy magnetic field,then the magnetic field around the receiveing coil is changed.The detector confirms a vehicle by measuring whether the magnetic field around the receiving coil is changed or not.Detection probability is 96%.Especially,the baseline drift problem which always appears in geomagnetic vehicle detector has been solved by using adaptive baseline updating method in this system. |
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| Keywords: | Vehicle Detection Eddy Magnetic Field Adaptive Baseline Updating Active Magnetic Detecion |
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