The invention discloses an indoor parking lot positioning and navigation method based on Bluetooth. The method comprises the following steps: deploying a proper amount of Bluetooth base stations; detecting and recording Bluetooth signals of all indoor point locations, obtaining a Bluetooth fingerprint library in a specific parking lot, enabling a mobile terminal to obtain the Bluetooth signals through a Bluetooth module of the mobile terminal, obtaining a preliminary positioning result through matching of a KNN algorithm and the fingerprint library, and conducting Kalman filtering processing on the preliminary result to obtain a final value of the current positioning result; and finally, planning to obtain a navigation path according to a positioning result in combination with an A* algorithm. According to the invention, the Bluetooth positioning strategy is perfected with low cost, the precision loss caused by the fact that the Bluetooth signal is easily interfered and unstable is made up, the positioning accuracy and stability are improved, and a solution is provided for indoor positioning.
本发明公开了一种基于蓝牙的室内停车场定位与导航方法。该方法首先部署适量蓝牙基站,检测并记录室内各点位的蓝牙信号,得到特定停车场内的蓝牙指纹库,移动终端通过自身蓝牙模块获取蓝牙信号,通过KNN算法与指纹库进行匹配得到定位的初步结果,再对初步结果进行卡尔曼滤波处理得到当前定位结果的最终值;最后根据定位结果结合A*算法规划得到导航路径。本发明使用较为低廉的成本完善了蓝牙定位策略,弥补了蓝牙信号易受干扰不稳定而引起的精度损失,提高了定位准确度和稳定性,给室内定位提供了一种解决思路。
Indoor parking lot positioning and navigation method based on Bluetooth
一种基于蓝牙的室内停车场定位与导航方法
2020-09-29
Patent
Elektronische Ressource
Chinesisch
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