Abstract:

For the distinctive characteristics of indoor positioning technology which is different from outdoor positioning due to the complexity of the indoor environment, an indoor AP hybrid positioning method based on floor discrimination and signal strength was proposed. The method consists of two parts, the floor discrimination and the specific location of the AP. The method using association algorithm to determine the floor in order to filter out the target AP, and then it to determine the positioning method according to the position relationship between the test point and the target AP. If the target AP in the vicinity of the test point, the centroid localization algorithm was used, otherwise the weighted-style positioning algorithm was used. The positioning test results in the actual scene show that the positioning effect of the method is good and the method has a small deviation.

Key words: WLAN, AP, floor discrimination, correlation algorithm, indoor positioning