Research And Implementation Of Multi-acoustic Source Position System Based On Wireless Sensor Networks

Wireless sensor networks have allured more and more eyeballs as a new type ofdata collecting and processing because of its wide appliance foreground.As abrandnew computation paradigm,wireless sensor networks (WSN) employ numeroussmall—sized sensor nodes which are capable of sensing , computing andcommunication and distributed in a large area of physical world,which offer aninspiring new way for interaction between human being and the environment.WSNcan be applied into various scenarios such as environment monitoring,industryprocess control,battle field surveillance,after-disaster rescue,etc.Firstly, the paper analyses the problems that exist in the multi-acoustic location andthe multi-acoustic location algorithm.And then gives a more accurate multi-acousticlocation algorithem with constraint conditions.Secondly, the paper researched theRBS algorithem based on receiver and receiver mechanism and TPSN algorithembased on sender and receiver mechanism. Then the paper has got an improvedalgorithem.The new algorithem has properties of less consuption ,more stronger andmore accurate .Thirdly,the paper designed advanced hardware plateform which isgood at multi-sensor board.Then the paper finished data-processing software andterminal software at the top end based on TinyOS. Finally,the paper researched thesignal filter method in order to smooth the signal.After that the paper constructed anexperiment platform.We have got the result of the experiment and analyzed the factorof error.