基于UWB的室内定位系统研究
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摘要
针对目前国内室内定位领域的需求,提出一种基于UWB的室内定位系统实现方案,充分利用UWB带宽大、定位精度高的优点,实现室内三维定位和追踪。系统通过TOA方法,测量UWB标签与多个UWB基站之间的距离,位置解析服务器通过串口读取测距信息。采用基于四UWB基站的三维空间定位算法,计算定位目标在室内三维空间的位置,并通过WiFi发送位置至用户手机端。手机端通过OpenGL ES加载三维室内地图,并动态接收从服务器端发送的定位目标位置,从而实现室内三维定位与追踪。系统测试表明,基于上述方案的室内定位系统具有较高的精度和实用性。
To meet the needs of domestic indoor positioning field, an indoor positioning system based on UWB is proposed,which makes full use of the advantages of wide bandwidth and high positioning accuracy of UWB to realize indoor three-dimensional positioning and tracking. The system measures the distance between UWB tags and multiple UWB base stations by TOA method, and the location analysis server reads the ranging information through serial ports. A three-dimensional space location algorithm based on UWB base station is used to calculate the location of the target in the indoor three-dimensional space, and the location is sent to the user's mobile phone through WiFi. The mobile terminal loads the three-dimensional indoor map through OpenGL ES, and dynamically receives the location of the positioning target sent from the server, so as to realize the indoor three-dimensional positioning and tracking. The system test shows that the indoor positioning system based on the above scheme has high accuracy and practicability.
To meet the needs of domestic indoor positioning field, an indoor positioning system based on UWB is proposed,which makes full use of the advantages of wide bandwidth and high positioning accuracy of UWB to realize indoor three-dimensional positioning and tracking. The system measures the distance between UWB tags and multiple UWB base stations by TOA method, and the location analysis server reads the ranging information through serial ports. A three-dimensional space location algorithm based on UWB base station is used to calculate the location of the target in the indoor three-dimensional space, and the location is sent to the user's mobile phone through WiFi. The mobile terminal loads the three-dimensional indoor map through OpenGL ES, and dynamically receives the location of the positioning target sent from the server, so as to realize the indoor three-dimensional positioning and tracking. The system test shows that the indoor positioning system based on the above scheme has high accuracy and practicability.
引文