In order to ensure sufficient illumination in the gymnasium, designers must consider the following factors: 1) illumination: reasonable illumination can not only ensure the normal performance of athletes and the accurate judgment of referees, but also ensure the audience at the scene and in front of the TV to watch the game comfortably. Different sports also need different lighting. The illuminance required for sports events and commercial activities is also different. 2) Uniformity of illumination: the ratio of minimum illumination value to maximum illumination value is uniformity of illumination. Both indoor gymnasiums and outdoor gymnasiums need high illumination. Take the basketball competition venue as an example, more lights tend to gather in the middle venue, but glare often appears in the area with too strong light, and the brightness of the backboard area is often weak, which ensures the lighting uniformity of the whole venue and plays a vital role in the level of athletes. 3) Glare: Glare refers to a visual condition that causes visual discomfort and reduces the visibility of objects due to improper brightness distribution or extreme brightness contrast in space or time. There is a kind of brightness in the field of vision that the human eye can't adapt to, which will have a great influence on athletes, especially in ball games, and athletes can't accurately judge the landing point of the ball. In order to ensure uniform illumination at all angles and prevent indoor glare, the elevation angle between the lowest projection point of the gymnasium and the lamps must be greater than 45. However, in order to prevent direct exposure to athletes or spectators, existing gymnasiums will use computers to calculate the projection points to ensure the uniform and reasonable distribution of illumination. Indoor glare may also be caused by different floor materials or water reflection in swimming venues, so you can also install grids or baffles for lamps to reduce glare. 4) Lighting distribution: The lighting distribution of the gymnasium is scattered, mainly divided into viewing area and competition area. However, because athletes' activities are not only on the flat ground, vertical lighting has a great influence on athletes. Because while reasonably controlling the illumination of the lights, it is also necessary to reasonably plan the distribution position of the lights, and ensure the lighting requirements of the audience on the premise of ensuring the athletes' competition. 5) Characteristics of light source: The degree to which the light source presents the color of an object is called color rendering, that is, color fidelity. The light source with high color rendering is better for color reproduction, and the color we see is closer to the natural primary color, while the light source with low color rendering is worse for color reproduction, and the color deviation we see is also greater. The light source in the stadium should ensure good color rendering, so that athletes can make more accurate judgments. Three. Lighting control and lighting arrangement scheme 3. 1 Lighting control The lighting of the comprehensive gymnasium should meet the competition requirements of various sports events, as well as the requirements of athletes' daily training, pre-competition training, various gatherings and commercial performances. There should be a lighting control room in the gymnasium to observe the lighting situation of the venue. Nowadays, many gymnasiums use computer intelligent lighting control, and the staff can control the lighting conveniently. According to the scheme of controlling lighting circuit, different lighting requirements can be met. The more uses a venue has, the more complicated the lighting configuration scheme will be. The lighting control system of a comprehensive gymnasium should have the following characteristics: 1) The light source has good color temperature and color rendering, and the illumination is enough to meet the needs of athletes' daily training and competition; 2) Improve the lighting arrangement scheme and simplify the operation steps, thus reducing the operation cost; 3) In addition to the basic lighting needs, in order to cooperate with various commercial activities, lighting should be fashionable. 3.2 Lighting layout scheme 1) The general plan is analyzed in detail in the lighting layout scheme and analyzed and calculated by computer. Through reasonable lighting arrangement and different lighting methods, the lighting requirements of different levels of competitions and commercial activities can be achieved. 2) Layout ... In the design, two main paths are arranged above the vertical competition field and two paths are arranged above the vertical auditorium. These four paths are interconnected, and lights are installed on both sides of the path. 3) Emergency lighting arrangement. In case of sudden power failure due to special reasons, the standby power supply must ensure the lighting of emergency lights to help the athletes and spectators in the venue evacuate.