Light source, luminaire type, luminaire layout and luminaire control measures Green lighting requirements are not only reflected in the choice of light source and the light distribution of the luminaire, but also in how to properly control artificial lighting according to the level of natural illuminance. These control measures are basically divided into three categories: automatic control, manual control and semi-automatic control. Manual control of small and medium-sized stores is more practical. Control methods are divided into zone control, classification control, and group control. Short tube fluorescent light. The luminous efficacy of double U-shaped fluorescent lamps and thin-tube fluorescent lamps is generally high, but the 38mm long tube fluorescent lighting is not high and tends to be eliminated, which is commonly used in old stores. In the case of light distribution, there are basically lamps in the new store, while the old store has bare lights and no light distribution. Judging from the control measures, the measures in the new store are relatively perfect, but they have not been effectively utilized in practical applications, but the old stores are lacking.
The illuminance of the light source illumination of the business hall is generally insufficient, but the individual greatly exceeds the recommended value, the general illumination in the room is not uniform, the light distribution of the luminaire is not suitable, and the power of the light source is inconsistent. The actual unit power density of each business hall is inconsistent with the unit power density limit UPD, which is quite different from each other, indicating that energy-saving measures and energy-saving awareness are lacking or the owners are not aware of the promotion effect of high-quality light environment. The vertical illumination of the business hall is not enough, and the three-dimensional feeling of the goods is poor. Discussion on improvement measures for lighting design in small and medium-sized stores, positioning of lighting design for small and medium-sized stores The method described below is derived from a method of classifying small and medium-sized stores abroad. The positioning of lighting conditions in small and medium-sized stores depends on four factors: (1) the value of the goods, from cheap to expensive. (2) The uniqueness of goods, from simple to unique. (3) The range of goods handled by stores ranges from wide to narrow. (4) Whether the product needs personal guidance service at the time of purchase, from the customer's choice to the individual guidance service.
The types of goods operated by the store are narrow, the goods are unique and expensive, and the personal guidance service is required at the time of purchase. The lighting quality is high, the lighting methods are diverse, and the three-dimensional feeling is strong, and it is required to create a pleasant light environment atmosphere. In the opposite direction, the trend is: the types of goods operated by the store are wide, and the goods are simple and cheap, such as daily department stores, which do not require personal guidance services and are suitable for customers to choose their own, the number of lighting increases, and the quality requirements of the light environment are reduced. Generally only require uniform illumination.
The specific improvement measures are aimed at the lighting positioning of each store and the respective lighting defects. We have the following improvement measures as a whole: the double-U-shaped compact energy-saving fluorescent ceiling lamp with high luminous efficiency and the thin pipe diameter of the short pipe Fluorescent light trough with mixed lighting for general lighting in the business hall. For key lighting and local lighting, use a small-diameter fluorescent lighting cymbal or a track light with a flexible lighting. The illuminating of all luminaires must be designed so that the indoor horizontal illumination is proportional to the vertical illuminance without glare. The luminaires are simultaneously partitioned, grouped, and classified. Manual control is more practical, and it is necessary to pay attention to energy saving by switching several rows of lamps close to the lighting port according to the natural light condition. According to the recommended illumination value of 500lx, the color temperature is determined to be around 4000K. Therefore, the light source should be warm and cold with two colors. It is recommended that the artificial illumination illumination value is 500lx for general illumination, the key illumination area is increased, and the ambient illumination area is reduced. The control unit power density value UPD is close to 20.4W/m2. This requires reasonable lighting circuit design, comprehensive and effective control system, high efficiency ballast, frequent maintenance and cleaning. Actively use natural lighting, use reflectors, glass bricks, etc. to introduce light into the room, increasing the light penetration. The indoor surface, especially the ceiling, maintains a high reflectance. Improve the owner's awareness of energy conservation.
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