陈嘉明,张足生,吴晓鸰.基于磁阻传感器的智能车位锁停车检测算法[J].集成技术,2019,8(6):21-30
基于磁阻传感器的智能车位锁停车检测算法
A Parking Detection Algorithm of Intelligent Parking Lock Based onMagnetic Sensor
  
DOI:
中文关键词:  停车检测;智能车位锁;磁阻传感器;磁干扰
英文关键词:parking detection; intelligent parking lock; magnetic sensor; magnetic interference
基金项目:国家自然科学基金面上项目(61872083);广东省自然科学基金项目(2019A1515011123);广东省普通高校特色创新项目(2018KTSCX221)
作者单位
陈嘉明 广东工业大学计算机学院 广州 510006;东莞理工学院网络空间安全学院 东莞 523808 
张足生 东莞理工学院网络空间安全学院 东莞 523808 
吴晓鸰 广东工业大学计算机学院 广州 510006 
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中文摘要:
      智能车位锁通过其内置的磁阻传感器可实现车位状态的实时监控,并利用监控信息实现自 动缴费、车位预约和车位共享等应用。但车位锁上锁和落锁过程会产生磁场干扰,传统的停车检测算法没有考虑这类干扰,造成误检率高。为解决这一问题,该文提出了一种抗干扰的停车检测算法,将车辆磁信号建模为方差序列,根据干扰的特征提出干扰信号滤波方法,结合状态机实现了更 为稳定的停车状态检测。实地部署的 50 个智能车位锁实验结果表明,该算法具有更高的可靠性,并显著提高了车辆检测准确率。
英文摘要:
      The intelligent parking lock (IPL) can monitor parking spaces with its built-in magnetic sensor, and the parking information can be used to realize automatic payment, parking reservation, parking sharing, and so on. However, in the operation of locking and unlocking, the IPL generates magnetic interference signals, which will result in false detections of traditional parking detection algorithms. To solve this problem, a robust parking detection algorithm was investigated. The vehicle magnetic signal is modeled as a variance sequence, and a filtering method of interference signal is applied to remove noisy signal. The parking detection algorithm is implemented based on the state machine. In the experiment, fifty IPLs were deployed in the parking spaces. The results show that the proposed algorithm is more robust and can improve the vehicle detection accuracy.
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