Design Of Wireless Sensor Network MAC Level Protocol On SDL

The generation，acquisition，storage，transmission，processing and application ofinformation are six important foundations of modern information technology.Theinformation acquisition is one of the most important parts of information technology inindustry chain.With the rapid development of modern microelectronics technology，microelectromechanical system，on a chip system，wireless communication technology，computer network technology and the Internet technology，wireless sensor network as anew information acquisition and processing technology has drawn great attention of theacademia and industry and become the hot research field now.As a kind of network without fixed network infrastructure，for wireless sensornetwork，all nodes build networks by means of self-organizing，and monitor physicalphenomena including temperature，humidity，noise，light intensity and etc which we areinterested in through various sensors in nodes，and then transmit to the user in the form ofwireless transmission. Network nodes with random distribution need communicationprotocol for support such as MAC layer protocols，routing protocol to achieve networkself-organization，reliable and efficient data transmission.In this paper, ordinary nodes select STM32F103CB as processor and NanoPAN5375chip as a wireless transceiver for design; besides extend various sensors as data collectionmodule. In this paper，we introduce wireless sensor network node hardware platformfirstly，and then research the key techniques such as MAC protocol and the protocolimplementation based on SDL for wireless sensor networks. To guarantee the code quality，avoid human errors， shorten the development cycle，we adopt Telelogic AB tau productTelelogic SDL and TTCN Suite4.4as development tool to complete the process ofprotocol simulation，development， testing， etc，and then generate the corresponding C/C++code and make the appropriate changes combined with the corresponding library filesto finally obtain C language code directly applied on embedded ARM platform.