Daylight-Sensitive Efficient Lighting

　　在短短的十年中，發(fā)光二極管（LED）已成為電子設(shè)備的主要選擇，使照明更節(jié)能。能夠有效地產(chǎn)生強(qiáng)烈的光照水平使得LED在大多數(shù)應(yīng)用中越來越受歡迎，超過了熒光和其他技術(shù)的能力。LED的另一個重要優(yōu)勢是它的可控性。

　　雖然調(diào)光的LED涉及一個更復(fù)雜的電路設(shè)計比簡單的控制器，用于傳統(tǒng)的白熾燈照明，LED支持的能力，不僅調(diào)整照明水平，但發(fā)射的顏色調(diào)整到一個良好的水平。這種可控性可以利用在各種應(yīng)用中，從高灣照明倉庫和工廠的智能溫室。

　　LED lighting is already contributing to increased yield in agriculture by extending the possible growing season for a wide range of crops by several months in temperate climates. By improving yield and growing times， the technology makes rooftop agriculture more economic. As a result， cities can begin to contribute to global food production. An important aspect of smart greenhouse design is the ability to make the LEDs respond to ambient light levels to avoid overconsumption of electricity and to provide different colors to support the needs of crops over their lifecycle. The LEDs can be turned off completely during bright ambient lighting conditions， and be gradually brought online as it decreases.

　　In warehouses ambient lighting is less readily available， but it is often present through skylights and windows. The problem with traditional lighting design is providing consistent illumination over the entire floor space. Traditionally， luminaires will be set to provide a constant level of illumination that will be wasteful in areas of high ambient light levels. At the same time， areas in corners with few surrounding luminaires and windows or skylights may be comparatively dark. Smart LED lighting can compensate for these problems by adapting not only to changing natural light， but the impact of other luminaires.