Tuesday, April 6, 2010

the technology

Wireless sensor networks (WSN) which combines the technology of sensor, embedded system and wireless communications, have a bright application prospect. At present, WSN has been widely used in a specific area sensing and acquisition of scalar information, such as chi hair straightener temperature, humidity, light intensity, pressure, PH and so on. However, with the improvement of monitor demand, such scalar information can not meet the full demand for environmental monitoring for people. There is an urgent need for leading information-rich audio, video, image and other media information into environment monitoring base on sensor network, to achieve fine-grained, accurate information on environmental monitoring. Because of these, Multimedia Wireless Sensor Lacoste Polo Shirts Networks (MWSN) which focus on audio, image and video, become one of the present research hot-spots in recent years.This paper designs and implements an audio collection system based on WSN for men's nike shoes monitoring migratory birds at the area of lake and swamp. The system need to work at the wild environment of the lake and marsh area for a long time, collecting and transferring audio data by battery power and wireless communication. More attention is acquired for the problem of data processing, network cheap ralph lauren polo shirts transport, system lifetime and QoS (Quality of Service). It is significant and lace wedding dresses challenging for the research and application of MWSN.This system is made up of several audio sensor nodes, which are made up of on a microcontroller, a wireless communication module for IEEE802.15.4 protocol, and a high-gain, low noise amplifier.
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