The invention relates to a vehicle detection device based on a millimeter wave radar and double geomagnetic sensors and a detection method thereof, and the device is installed on the ground of a parking space, and comprises a board card, a microcontroller, a millimeter wave radar sensor and two geomagnetic sensors. The detection method comprises the following steps: step 1, the microcontroller controls the two geomagnetic sensors to detect geomagnetic values; step 2, judging and calculating whether the interpolation of the two terrestrial magnetism values reaches a magnetic field change threshold value caused by vehicle magnetism or not by the microcontroller; 3, the microcontroller starts the millimeter-wave radar sensor for reinspection, and judges whether the millimeter-wave radar sensor completes detection or not; and step 4, the microcontroller determines whether there are vehicles according to the detection structure of the millimeter wave radar sensor. The system has the advantages that preliminary judgment is performed through the double geomagnetic sensors, reinspection is performed through the millimeter wave radar sensor, and the detection accuracy of the state of the vehicle entering the parking space is improved by utilizing the matching of the advantages of the two sensors.
本发明为一种基于毫米波雷达及双地磁传感器的车辆检测装置及其检测方法,它安装于车位地面,包括板卡、微控制器、毫米波雷达传感器以及两个地磁传感器;所述检测方法包括如下步骤,步骤1:微控制器控制两个地磁传感器检测地磁值;步骤2,微控制器判定计算两个地磁值插值是否达到车量磁性引起的磁场变化阈值;步骤3,微控制器启动毫米波雷达传感器进行复检,判定毫米波雷达传感器是否完成检测;步骤4,微控制器根据毫米波雷达传感器的检测结构判定是否有车量。本发明的有益效果为:通过双地磁传感器进行初步判定,在通过毫米波雷达传感器进行复检,利用两种传感器的优势搭配,提高了对车辆进入车位状态的检测准确度。
Vehicle detection device based on millimeter wave radar and double geomagnetic sensors and detection method thereof
基于毫米波雷达及双地磁传感器的车辆检测装置及其检测方法
14.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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