The invention discloses a geomagnetic parking space detection method. The method comprises the following steps: collecting geomagnetic field data of a current parking space through a geomagnetic detection node; smoothing the obtained geomagnetic field data by using mean filtering; obtaining the baseline value of the current environment by using a double-baseline tracking method, and errors introduced by single-baseline tracking can be eliminated while the change of an environment magnetic field is tracked; judging whether a vehicle exists or not in combination with a multi-state machine detection algorithm. According to the method, errors introduced during single baseline tracking are avoided, and the accuracy of geomagnetic parking space detection is improved through a more accurate baseline value.
本发明公开了地磁停车位检测方法,包括以下步骤:通过地磁检测节点采集到当前车位的地磁场数据;使用均值滤波对获得的地磁场数据进行平滑处理;用双基线跟踪的方法获得当前环境的基线值,在跟踪环境磁场变化的同时,也能消除单基线跟踪所引入的误差;结合多状态机检测的算法判断车辆的有无。本方法避免了单基线跟踪时引入的误差,通过更加准确的基线值,从而提高地磁车位检测的准确性。
Geomagnetic parking space detection method
一种地磁停车位检测方法
2020-06-26
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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