In order to solve the problems of large energy consumption existing in tunnel lighting control system, an automatic control system of tunnel lighting is designed based on stepless control method. The tunnel lighting control model is established based on “Specifications for Design of Ventilation and Lighting of Highway Tunnel (China)”. Simulation of tunnel lighting control based on the establish...

General illumination using LEDs has enabled designers to have precise control of the intensity and color of an illuminated area. In this work, I investigate how these systems can dynamically adjust to create optimal lighting conditions in the built environment. By incorporating environmental feedback into a system control loop, i.e., illuminance or luminance measurements, the precise intensity ...

By the rise of concerns for global warming, reducing emissions via lowering energy consumption has become a necessity in every sector and the lighting sector is no exception. However, it should not come at the cost of lighting quality and user comfort which is a common practice in today’s lighting design and energy reduction initiatives. The “energy reduction” view should change toward “value d...

The healthcare sector of today has very precise requirement with regard to interior lighting. To fulfill these needs, international standards which specify the strict requirement for each health care facility have come up. Hospital lighting is in particular complex because of the sensitive nature of various patients as well as requirement of high performance from its employees. Hence this makes...

Most of the cross-arms of the 275 KV and 123 KV transmission lines in Malaysia and certain countries are using hard wood especially from chengal species. Due to natural weathering this wooden cross-arms is degraded and decayed. For safety reason there is a need for a simple, light, and accurate non-destructive decay detection. In this project the microwave reflection technique and ultrasonic me...

This paper gives an overview of image-based representations commonly used for reducing the geometric complexity of a scene description in order to accelerate the rendering process. Several different types of representations and ways for using them have been presented, which are classified and discussed here. Furthermore, the overview includes techniques for accelerating the rendering of static ...

Research suggests that specialized lighting design is essential to cater for the elderly users of a building because of the physiological changes in the eye with increased age. Recent studies have established that lighting in a space impacts on users’ physical performance as well as on the mental state. In particular, light therapies have been found to be successful in treating several mood dis...