Three-Dimensional Localisation using Cricket System

The Cricket system is a kind of wireless sensor networks used for indoor localisation, which is developed by MIT and Crossbow. It can be deployed to compute the location information for various devices, such as computer and cell phone. This report firstly describes the initialisation of Cricket and the additional resources. Then, a threedimensional localisation algorithm is designed based on the optimisation method. Its performance is analysed in simulation and compared with the two existing localisation algorithms. The simulation results demonstrate its high localisation accuracy. Moreover, a new program, namely CricketMFC, is developed to initialise the localisation system by deploying Java, Matlab and Microsoft Foundation Classes (MFC). It also can be used to compute the three-dimensional position and display the results in three-dimensional coordinates in real time. The real experiment clearly verifies that the designed algorithm provides very good localisation results and the CricketMFC is an efficient localisation system.