关键词：光机电；传感器；能源效率；策略
摘 要：Wireless sensor networks (WSNs) are distributed systems composed of hundreds to thousands of low cost, battery-powered, and reduced-size devices, endowed with processing, sensing, and wireless communication capabilities. One major reason for the increasing interest in WSNs in the past few years is their potential pervading in application areas for which traditional networks are unsuitable. Instead of a deployment scenario in which few powerful sensing devices are linked by either wired connections or single-hop wireless connections, WSN nodes consist of multiple microsensors able of communicating and self-organizing in order to compose a wireless ad hoc network for meeting application demands.