Patent ID: 8989771
Filing Date: 2015-03-24
Classification: G01S

Abstract:
1. A method of recognizing a space in which a user having a user device is located in an indoor environment having a wireless sensor network, the method comprising: obtaining available RSSI (Received Signal Strength Indicator) information for a plurality of fixing devices in the vicinity of the user device in the wireless sensor network environment; collecting environment information in the space; collecting environment information in a plurality of spaces in which the fixing devices are respectively located; combining the RSSI information and the environment information collected in the space and the environment information collected from the fixing devices; collecting motion information in the space in which the user is located; generating the motion information, which includes at least one of a motion, posture, and direction of the user device, on the basis of the motion information; determining whether the motion information is within a predetermined range; performing said collecting the environment information and said obtaining the RSSI information when the motion information is below the predetermined range; maintaining information on a previously recognized space when the motion information exceeds the predetermined range; and performing a recognition function on the combined environment information to recognize the space in which the user is located.