In addition to the horizontal illumination, there are also vertical illumination, site illumination uniformity, color rendering index, electricity economy and other indications are also good or better. In addition, if the main stadium lighting mainly uses high-pressure gas discharge lamps, then how to deal with the accident lighting of the main stadium will be better solved in the lighting design of the main stadium. The following is its specific implementation comments. In the selection of lamps, the main venue uses 125-inch deep-cover lamps to be evenly distributed above the playing field to ensure the basic illumination of the basic value of 1500lx. The lamps are installed on the ball-shaped grid and the horizontal position is fixed under the lower-chord ball, keeping the same. Height; in order to ensure that the vertical illumination reaches a sufficient value, 40 æ–œ oblique illumination lamps are arranged around, so that the person's face is clear when shooting. In order to ensure good color rendering and power saving requirements, the main stadium lighting adopts 400W xenon lamp and 250W high color rendering high-pressure sodium lamp mixed light illumination (DDG400W+NGG250W), namely deep-illuminated lamps and oblique-illuminated type. The total number of lamps is 165 ç›; the audience seats are illuminated with iodine tungsten lamps.
On the one hand, the use of iodine-tungsten lamps can be gradually and gradually darkened, on the one hand, the color rendering is good, and it can also be used as accident lighting. The illumination of the main venue site was measured by the scene. The illumination of the site was uniform. The horizontal illumination of any part was greater than 1500lx, and the ratio of vertical illumination to horizontal illumination was greater than 0.25. The lighting of the venue completely met the requirements of color TV broadcasting. Light sources and lamps commonly used in stadiums are incandescent lamps, tungsten halogen lamps, metal halide lamps and mixed lamps. In order to make the color rendering index high, the lighting electricity economy is economical, and modern stadiums also use mixed lighting.
The mixed light illumination mode has two kinds of light mixing in the lamp and mixed light in the hall. In order to make the light color fully mixed, the hall uses light mixing inside the lamp, that is, two kinds of light sources are installed in one lamp, and then fully mixed and then irradiated to the venue. . There are many kinds of light sources. Which kinds of light sources are used for light mixing? The high-pressure sodium lamp has a luminous efficiency of up to 90130 lm/W. This kind of light source is preferred for general mixed-light lighting because it can achieve the purpose of electricity economy. The control of the lighting is to control the lighting, combined with the lighting requirements of the museum, and with reference to the international standard lighting control of the stadium, we purchased the DKZ zero-crossing trigger computer lighting control system developed by Zhejiang Stage Electronic Technology Research Institute (the system was awarded 1992). The second prize of the Ministry of Culture's Science and Technology Progress Award), which is mainly composed of DKI lighting console and KKG power switch cabinet. It can be programmed according to the use requirements, and can store 40 different lighting groups; It can implement the addition and subtraction of lights, with manual backup. KKG high-power switchgear, closed by the switch of the thyristor-controlled lighting fixture, adopts the photoelectric coupling zero-crossing trigger circuit, which fundamentally eliminates the radio interference of the gas discharge lamp (inductive load), prolongs the life of the lamp, and realizes computer digital control.
The surrounding 40 ç› mixed light illuminating lamps are controlled by two lamps and one lamp, and the above total is 145 loop outputs, which are controlled by the two thyristors. What needs to be explained is the laying of the lighting lines. Each luminaire is mixed by two kinds of light sources. Since the two kinds of light sources have different starting delays, the two light sources respectively have their own power supply lines, that is, one set of two power supplies for the lamps to ensure And extend the life of the light source. In order to ensure the safety and beauty of the line, the main venue circuit is laid using all the bridges. At the same time, in order to reduce the stroboscopic effect, the adjacent lamps are connected to the power supply of different phases, and the lamp console is provided with a lamp position arrangement simulation disk, and the state of the lamp above the site is displayed through the analog disk to visually display the illumination of the Henan University wind and rain. The picture of the lamp position of the main stadium of the playground and the situation of the venue. The lamp position and lamp number of the analog disk.
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