The invention specifically discloses a parking space detection method based on a magnetic sensor. The method comprises the following steps of 1, extracting an inherent magnetic field of a vehicle, carrying out modeling of an inherent magnetic field signal of the vehicle through employing three magnetic dipole models, and finally adjusting the number and distribution of sensors disposed on the ground of a parking space, and effective identification of non-standard parking spaces being realized; and 2, giving a vehicle detection algorithm under an ideal condition. When no vehicle passes through the parking space, the signal detected by the magnetic sensor is a geomagnetic field, and the signal can return to zero through processing of removing geomagnetic interference; when a vehicle passes through the parking space, the magnetic sensor is considered to be placed in the center of the parking space, and the magnetic field change of driving-in-parking-out under an ideal condition is simulated; based on a parking space detection principle of a magnetic sensor, the magnetic sensor placed on the ground surface of a parking space is used for receiving a superposed signal of an inherent magnetic field of a vehicle and a geomagnetic field near the sensor, and a new thought is provided for parking space detection.

    本发明具体揭示了一种基于磁传感器的车位检测方法,包括如下步骤:步骤1:提取出车辆的固有磁场,并采用三个磁偶极子模型对车辆固有磁场信号进行建模,最后通过调整放置在车位地面上的传感器数目和分布,实现对不规范停车的车位进行有效识别。步骤2:给出理想情况下的车辆检测算法;当没有车辆通过车位时,磁传感器检测到的信号是地磁场,通过去除地磁干扰的处理可以归零;当有车辆通过车位时,考虑将磁传感器放置于车位中央,仿真出理想情况下的驶入‑驻留‑驶出的磁场变化;基于磁传感器的车位检测原理,利用放置于车位地表的磁传感器接收车辆的固有磁场与传感器附近地磁场的叠加信号,为车位检测提供了新的思路。


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    Title :

    Parking space detection method based on magnetic sensor


    Additional title:

    一种基于磁传感器的车位检测方法


    Contributors:
    GAO XIANG (author) / WANG YINAN (author) / LIU XINGHUA (author)

    Publication date :

    2021-11-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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