Indoor positioning method based on RFID
An indoor positioning and positioning algorithm technology, applied in the field of RFID tag positioning of indoor systems, can solve problems such as redundant calculation, reduce the number of uses, eliminate some redundant calculations, and speed up positioning time.
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[0033] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0034] refer to Figure 1 ~ Figure 3 , a RFID-based indoor positioning method, comprising the following steps:
[0035] Step 1: Set up 500 simulation experiments, deploy different numbers of reference tags, 4 readers, and a tag to be located in each experiment;
[0036] Step 2: Firstly, four readers collect the received signal strength values of the positioning tags and all reference tags respectively, and obtain S 1 and θ={θ 1 ,θ 2 ..., θ n}, where the value of n is the number of each reference tag multiplied by the number of readers 4;
[0037] Step 3: Calculate the RSSI difference between the tag to be located and the reference tag in e...
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