In allusion to high electricity consumption and resource wasting of college schoolroom, this paper proposes a lighting fuzzy control system based on CC2430. The deviation and transformation rate comparing ideal illumination and the practical one has inferenced by Fuzzy Model Reference adaptive system (FMRAS), and it can compensate natural light illumination stabilizing schoolroom lighting throu...

Background: Lighting is a basic need for human beings and affects their physical, physiological, and psychological behavior. The required level of lighting for visual performance must be provided in order to ensure health and wellbeing. Students spend much of their time studying in libraries, and thus, sufficient lighting is necessary in libraries. Therefore, the aim of the present study was to...

Nowadays, energy saving is one of the most important factor to consider. Light and its inefficient use accounts for a great part of world’s total energy consumption. Automated lighting systems available to address this concern have not been effective in indoor environments like home and office buildings. This is primarily because indoor environment requirements have to take into account the nee...

Several recent studies have provided evidence that individual lighting control results in occupant satisfaction benefits. As part of a larger series of pilot studies, we examined the use of individual controls under various lighting power constraints. The studies took place in a mock-up open-plan office space, in which participants spent around two hours doing typical office tasks and answering...

An Intelligent Lighting System providing desired illuminance distributions at minimum electrical power was constructed in the actual o ce environment. The place of construction is the Area Planning O ce in the headquarters building of Mitsubishi Estate Co., Ltd. in Otemachi, Tokyo. The oor area is about 240 square meters, and 26 lighting xtures and 22 illuminance sensors are installed. One ligh...

Lighting is an essential component of visually rich cinematographic images. However, the common computer graphics light source models, such as a coneshaped spotlight, are not versatile enough for cinematographic-quality lighting. In this paper we describe the controls and features of a light source model for lighting computer graphics films. The model is based on generalized light cones, emphas...

Littermate crossbred boars received either natural lighting or supplemental lighting (incandescent or fluorescent) from 15 to 32 wk of age in two separate experiments. Boars in control and treatment groups received natural daylight through windows of a growing and finishing house from December to April (Exp. 1) or from March to August (Exp. 2). Boars in the treatment groups received supplementa...

This paper describes a real-time beat tracking system that recognizes a rhythmic structure in real-world audio signals sampled from popular-music compact discs. Most previous beat-tracking systems dealt with MIDI signals and had difficulty in processing, in real time, audio signals containing sounds of various instruments and in tracking beats above the quarter-note level. Our system can proces...

Recently, from device-centered automatic solutions, human emotion considered as an intelligent solution has been investigated. According to this idea, the importance of emotional technology has been raised. However, for investigating human emotion accurately, a technique that is able to recognize data comprehensively, including various and complex user context data, the condition of the user sp...

In addition to the MPC(Model Predictive Control) study in estimating in advance the control applicable to actual buildings based on a model in which a simulation tool is used, a variety of studies, including temperature control, lighting control, and operation strategy, have been conducted recently. Actual buildings are controlled and operated in the integrative mode, and, therefore, the impact...