It focuses on the principle of RSSI localization which can be put into use now and the relevant chip CC2431. Base on these, it proposes a new localization system—RSSI Lacoste Polo Localization based on Core, which introduce a new special structure—Core. Just like crystal procedure, crystal core is first formed, growing around core, crystal is finally formed chi dazzle. We hope core play a framework role and locate other nodes or cores, and also are located by ralph lauren polo shirts others, finally all nodes are located and whole network become order. The core of this system is composed of three sensors, which are placed on the three vertexes of triangle. The length of Lacoste Polo Shirts lateral range from 3m to 6m, the length of lateral of mobile core is limited by the environment, but the lateral of static core can design more long to get more precise. Three nodes of the core are nike shox shoes connected directly by wire to deduce the communication load. In the design of the node and core, MCU—ATmega128 is used as task process center.Through simulation, it was found that the system with core could actually improve on precise, accuracy and stability of localization.Finally, the paper gives the design of system, how to design the node is subject of this part.
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