Indoor Positioning Method Based on Classification Threshold and Signal Strength Weight
A technology of signal strength and classification threshold, applied in wireless communication, transmission monitoring, nan and other directions, can solve the problems of indoor interference factors, cost, and failure to consider RSSI loss characteristics, etc., to achieve simple implementation, reduce positioning errors, and improve The effect of positioning accuracy
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[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0035] The present embodiment provides an indoor positioning method based on a classification threshold and a signal strength weight, which is characterized in that it includes the following steps:
[0036] 1) Divide the target area into a uniform grid, measure the received RSSI value of each beacon node at the center point of each grid, and construct the RSSI fingerprint map, that is, the RSSI fingerprint database;
[0037] 2) Classify all reference points according to the relationship between the average signal strength collected at each reference point and the distance;
[0038] 3) Use the classification results of step 2) to determine the matching thresholds of each reference point;
[0039] 4) In the positioning phase of the mobile node, according to the real-time RSSI value and various reference point thresholds, vote for the preferred reference ...
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