Research And Implementation Of Indoor3D Location Technology Based On RSSI

Indoor location technology means:the technology to determine user’s location information with the wireless terminal device and wireless sensor networks in the indoor environment. As the important branch of indoor location technology, indoor3D location technology has more practical value than the traditional two-dimensional plane location technology. However, because of the particularity and complexity of the indoor environment, the indoor3D location technology is facing the common problem: how to overcome the influence of indoor environmental factors on the signal strength, and provide the high-precision, low complexity and3D positioning services to the users.In response to these problems, this thesis proposes a3D location algorithm based on the intersection of the centroid, and achieve the basic functions of the indoor location system with the Android platform, the experiments proved that this location system can provide a more precise and efficient positioning services to the users. The main content of this thesis include the following aspects:●Analysis of the basic concept of indoor3D location technology and contrast the design and implementation of the traditional3D location algorithm based on RSSI. Then proposed the problems of the3D indoor location technology based on the RSSI.●Research on the evaluation of the location algorithm, the RSSI ranging model, the location error analysis and the selection of the reference node in3D indoor location technology, combination of the traditional location algorithm based on RSSI and the centroid location algorithm and proposed a3D location algorithm based on the intersection of the centroid.●In response to the requirements of indoor3D location system based on RSSI, as well as the analysis of the key technologies and positioning algorithm, we design the framework of the system, and to achieve the basic functions of the3D indoor location system based on RSSI with the Android platform, at last use the experiment to proved the feasibility.