The invention discloses a composite vehicle detection algorithm, which comprises the following steps of: firstly, sampling a magnetic field of a current parking space, storing the sampled magnetic field in a magnetic field cache A after the sampling is completed, performing millimeter wave radar measurement on the current magnetic field, starting next processing, and judging the state of the parking space according to a measured magnetic field reference value and a judgment reference value; after the parking space state result is judged, uploading the judged parking space state to the application server. According to the invention, vehicle entering and exiting judgment is carried out mainly through a composite detection judgment mode of magnetic field + millimeter wave radar, and after magnetic field change judgment, the millimeter wave radar is started to judge whether a vehicle actually exists above a detection point. According to the invention, the judgment of other magnetic substances on actual vehicle access can be avoided, and even if the magnetic substances approach the parking space, interference information can be filtered out through the radar, so that the detection accuracy of vehicle access is greatly improved.
本发明公开了复合型车辆检测算法,首先对当前停车位的磁场进行采样,采样完成后将采样的磁场保存至“磁场缓存A”中,对当前的磁场进行毫米波雷达测量,并开始进行下一步处理,通过测量出的“磁场基准值”和“判断基准值”判断车位的状态,判断出车位状态结果后,将判断出的车位状态上传至应用服务器,本发明主要通过“磁场+毫米波雷达”的复合检测判断方式进行车辆进出的判断,经过磁场变化判断后,启用毫米波雷达判断检测点上方是否实际有车辆存在,可避免其它磁性物质对实际车辆进出的判断,即使有磁性物质靠近停车位,也可经由雷达过滤掉干扰信息,从而大大地提高车辆进出的检测准确率。
Composite vehicle detection algorithm
复合型车辆检测算法
2021-06-11
Patent
Elektronische Ressource
Chinesisch
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