Three-dimensional weighted centroid positioning method based on mass-spring model
A mass-spring model, weighted centroid technique, applied in electrical components, wireless communications, network topology, etc.
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[0040] The implementation process will be described in detail below in conjunction with the accompanying drawings, so as to further explain the technical features and advantages of the method of the present invention. A kind of high-precision positioning method provided by the present invention, the specific implementation steps are as follows:
[0041] 1. Measuring distance
[0042] Such as figure 1 As shown, assume that the unknown node p(x,y,z) can receive m anchor nodes B(x i ,y i ,z i ) coordinate information,
[0043] Each anchor node has its own unique ID and known coordinate values, and all anchor nodes have the same communication range. The unknown node sends a request signal to the surrounding anchor nodes, and the anchor node receiving the request signal sends its own ID and location information to the designated unknown node. According to the received RSSI value, the unknown node uses the logarithmic-normal distribution model to calculate the measurement dist...
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