关键词: 室内定位, 航位推算, 接收信号强度指示, 组合定位, 安卓平台

Abstract: To meet the requirements of realizing indoor positioning in conditions without the global positioning system, a dead reckoning/Received Signal Strength Indication（RSSI） integrated indoor positioning algorithm is proposed. Based on the intelligent mobile terminals equipped with various sensors, the heading directions are monitored by using the orientation sensor. The number of steps is determined by monitoring the Z-axis acceleration, and the online step length update and the dead reckoning accumulation error amendment are performed by using the absolute positioning of RSSI method. Thus the advantages of both the dead reckoning and the RSSI-based positioning methods are effectively combined. The proposed integrated indoor positioning system is implemented based on the Android platform, and its effectiveness is successfully verified.

Key words: indoor positioning, dead reckoning, Received Signal Strength Indication（RSSI）, integrated positioning, Android platform