Current highway tunnel lighting control systems are often manually controlled, resulting in significant energy waste. This article designs a fuzzy control algorithm for tunnel lighting energy control systems. The syst...Current highway tunnel lighting control systems are often manually controlled, resulting in significant energy waste. This article designs a fuzzy control algorithm for tunnel lighting energy control systems. The system uses LED （Light Emitting Diode） lighting, so the fuzzy control algorithm is designed for LED lights. The traffic and the natural illumination level are used as parameters in the intelligent lighting control algorithm. This system has been deployed in the Lengshui tunnel on the 49th provincial highway of Zhejiang province and operated for more than six months. The performance results show that the energy conservation system provides sufficient lighting levels for traffic safety with significant energy conservation.展开更多
Real-time, continuous-wave terahertz （THz） imaging is demonstrated. A 1.89-THz optically-pumped farinfrared laser is used as the illumination source, and a 124 × 124 element room-temperature pyroelectric camera...Real-time, continuous-wave terahertz （THz） imaging is demonstrated. A 1.89-THz optically-pumped farinfrared laser is used as the illumination source, and a 124 × 124 element room-temperature pyroelectric camera is adopted as the detector. With this setup, THz images through various wrapping materials are shown. The results show that this imaging system has the potential applications in real-time mail and security inspection.展开更多
基金Supported by the National Basic Research and Development (973) Program of China (No. 2010CB334707)the National Natural Science Foundation of China (No. 60803126)+1 种基金the Program for Zhejiang Provincial Key Innovative Research Team on Sensor Networks (No. 2009R50046)the Zhejiang Provincial Natural Science Foundation (No. Y1101336)
文摘Current highway tunnel lighting control systems are often manually controlled, resulting in significant energy waste. This article designs a fuzzy control algorithm for tunnel lighting energy control systems. The system uses LED （Light Emitting Diode） lighting, so the fuzzy control algorithm is designed for LED lights. The traffic and the natural illumination level are used as parameters in the intelligent lighting control algorithm. This system has been deployed in the Lengshui tunnel on the 49th provincial highway of Zhejiang province and operated for more than six months. The performance results show that the energy conservation system provides sufficient lighting levels for traffic safety with significant energy conservation.
文摘简述了植物工厂的定义、优势、本质技术特征和产生的技术基础,提出了LED光源在植物工厂中应用的优势及能耗削减的必要性,强调指出:基于植物光环境需求特性,建立光照配方(Lighting recipe,LR)和制定光环境控制策略(Light environment control strategy,LECS),是保证优质高产前提下实现光能最大利用效率,削减能耗的有效方法。
文摘Real-time, continuous-wave terahertz （THz） imaging is demonstrated. A 1.89-THz optically-pumped farinfrared laser is used as the illumination source, and a 124 × 124 element room-temperature pyroelectric camera is adopted as the detector. With this setup, THz images through various wrapping materials are shown. The results show that this imaging system has the potential applications in real-time mail and security inspection.
