关键词：无线传感器网络；转换器
摘 要：Wireless sensor networks (WSNs) are an emerging technology and certainly will be, without any doubt, a key technology in the future. To name a few, in 1999, the Business Week magazine included them as one of the most important technologies for the twenty-first century; in 2003, the Technology Review published by the MIT listed them as one of the top ten emerging technologies; and in 2006, Nature magazine dedicated a piece of news to them, entitled "2020 Computing: Everything, Everywhere," where WSN was considered to cause a huge impact in the near future. Now, in 2012, a big progress has been made in the development of these networks, and there is a continuously accelerated advancement of this technology to satisfv the demands of the market.