Patent ID: 9749787
Date: 2017-08-29
CPC Classifications: H04Q,H04W

Claim:
1. A ZigBee-based article searching method, comprising: receiving an article label signal sent by an article label, and detecting article label signal intensity; generating article position information according to the article label signal intensity and reference label signal intensity corresponding to at least one preset reference label; and sending the article position information to a terminal device of a user, wherein number of the reference labels is multiple, and the step of generating article position information according to the article label signal intensity and the reference label signal intensity corresponding to at least one preset reference label comprises: generating the reference label signal intensity according to position information of each reference label; generating a relative distance according to the reference label signal intensity and the article label signal intensity; and forming a plurality of circular ranges by taking each reference label as a circle center and taking the relative distance as a radius, and obtaining the article position information from a superposed area of the plurality of circular ranges, and wherein the step of generating the reference label signal intensity according to the position information of each reference label comprises: calculating the reference label signal intensity according to the reference label position information through the following formula: RSSI1 is the reference label signal intensity; A is signal intensity of a reference label when a distance between the reference label and a ZigBee gateway is 1 meter, and when there are a plurality of reference labels, A is mean value of signal intensities of the reference labels when distances between the plurality of reference labels and the ZigBee gateway are 1 meter; N is a signal propagation constant; D is the reference label position information, which is a distance between a reference label and a ZigBee gateway, and when there are a plurality of reference labels, D is mean value of distances between the plurality of reference labels and the ZigBee gateway.