In recent years, the reseach of wireless sensor networks(WSN) increasingly penetrates into a variety field of applications and develops rapidly. The thesis analyzed the ralph lauren polo shirts wireless sensor network system characteristics, advantages and the actuality of WSN's development in detail, discussed the significance and main implication of the target detecting Unattended node based on wirless Sensor networks (WSN), after comparing several Lacoste Polo Shirts detecting technique,on the basis of integrating characteristics of magnetic sensor and extensive prospects for nike shox shoes applications,a design scheme of distributed detcting node is introduced,and design of a magnetic target detecting WSN micro-node based on MSP430 MCU and finally realized in hardware. According to the actual needs of research proposed a system model of large number of ordinary nodes with a cheap wedding dresses 2010 base station node .This model possess a general character and expand easily, and study the hardware miniaturization,low-power,and anti-jamming technology of the node. Ordinary nodes used magnetic field sensor as sensor module to collect the information of the environmental field. The base station node communicated with the computer through the RS232 serial bus after the chip voltage was cheap white wedding dresses 2010 converted. wireless communication module used radio transceiver integrated chips,CC1100 worked in the ISM band (433 MHz),for the communications among the nodes.A distributed detcting node which based on WSN is mainly reasearched in the thesis,a principle of the design and it’s implementation methods of the hardware are introd -uced.Through two aspect which are alternating magnetic field and electrostatic field, the detecting unite of the node detect the disturbance which aroused by target. The detecting unite mainly consists of three parts,magnetic field detecting unite,electromagnetic wave detecting unite and charge amplifier used for electrostatic field detecting unite.Finally a conclusion and analysis for indoor and outdoors trial is given after experiment,and via test in practice validate the feasibility of the whole scheme.The detecting node is small and light, which can detect the signal of target in 6 meters. The result of the experiment shows the hardware designing satisfy the anticipative demand and has the ability of pre-warning.It can be used in many kinds of situation to detect the targets.
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