Research on RSSI–Based Localization System in the Wireless Sensor Network

摘要

Due to the rapid development in wireless sensor networks, the applications of the WSN have been extended todifferent environment and achieved a more diversified purpose. AS for the localization system, there are many related researchachievements. A set of localization system is built through the system integration between the small-scale wirelesshardware sensor and the wireless sensor platform, through the use of the RSSI and the integration of the fuzzy inferencesystem. The blind nodes are experimented in the indoor environment so that the system’s efficiency can be verified. Thesystem is implemented in the 8 meters multiplying 8 meters indoor space which is divided into 16 sections. Then 4 anchornodes are placed in the corners and the fuzzy identification system is built for the nodes’ RSSI signal in the blocks. Later,the localization test is implemented in the random positions within the blocks. The experimental results show that the localizationsystem accuracy rate is more than 80% and can successfully reach the preliminary localization system.