The Design Of Juridical Machine Of Footrace Based On Wireless Sensor Network Node

The sensor technology of acquiring information is the most important and elementary technology which opens the way to the integration,minisize and network from the singularity.Wireless sensor networks(WSN) is a novel hotspot of research field which has been made viable by the convergence of senor,Embedded computing system,wireless communication technologies and distributed information processing.Both aeademia and industries are engaged in developing WSN due to the wide and potential future with various applications.The concept of WSN is described in this paper.System structure,node technology and protocols of network of wireless sensor networks are explored as the beginning of the research work.The characteristics and some crucial problems of the WSN are summed up. It was proposed that basic frame of the all-purpose node in the WSN based on the principle of design.Classifying reseach and analyze of the protocols of data link layer and network layer are carried out.Then protocol structure and characteristics of the wireless communication protocol-Zigbee are introduced in detail. The schematic circuit diagram of hardware is described in detail, especially circuit of RF interface. The solution and practical implementation of software of the system is provided in detail.The interface of system of monitor and control which is designed in LabVIEW is introduced.At last,the tache of the experiment is designed to test and analyze some parameters and capabilities of the system.Such as parameterm of state and sensitiveness of take-over with distance of communication.Some shortage of the system is indicated.Then the work and some suggestions of further research is put forward.