I used to be a small command center with an area of less than 50 square meters and a limited budget. Conventional systems include large screens, matrixes, central control, speakers, digital conferences and networks. Here we mainly share the practice of LCD splicing screen.
LCD splicing screen
The reason for choosing LCD splicing is to follow the 30% principle mentioned earlier, that is, the proportion of the large screen in the entire project is set at about 30%, which can not only highlight the importance of the screen, but also ensure the integrity of other systems. Causes top-heavy compression of other systems.
LCD splicing screen
In fact, before considering the use of LCD, I also thought about using projection fusion. Moreover, the current laser projection technology is relatively mature and has stable performance. And it can guarantee the brightness of the laser well. But I always feel that the stability of projection fusion is not very high. If it's just a single projection, it's fine. But if you use a large-size and large-lumen engineering machine, the price will not be cheaper than LCD splicing, and a good brand machine is more expensive. And there is a fatal flaw in the projection. If the hoisting method is used and physical settlement cannot be avoided for a long time, the picture will be deviated and the fusion belt will have problems. Afterwards, it needs to be re-calibrated and re-debugged, which brings a lot of inconvenience to maintenance and management.
LCD splicing screen
Let me talk about LCD splicing first. At present, the common specifications on the market are 46 inches, 49 inches, and 55 inches. Flat seam 3.5mm, 1.8mm or 1.7mm, brightness 500 or 700. The advantages of liquid crystal are high color saturation, wide color gamut, and wide viewing angle. Although there will be black gaps in the splicing, the overall consistency is still relatively high, and the effect is good if it is a little farther. Moreover, the price-performance ratio is relatively high. The current market price is relatively stable in the region, and there is basically no room for decline like LED.
This project chooses a 55-inch 3.5mm, 500-bright LCD, a total of 2*4, 8 screens. The installation adopts post-maintenance and aluminum alloy floor support. Another installation method is pre-maintenance, mechanical, hydraulic, and electrical. In fact, if conditions permit, later maintenance is more appropriate, and installation and maintenance are more convenient. When installing the screen, pay attention to the best Z distance of 80-120 from the ground, because in such a command center, the distance between the seat and the screen is relatively close, and the height of the person sitting is about 1.2m, so ensure that the people behind also have a suitable Viewing angle, the screen should not be too low from the ground.
In fact, this project is flawed, because there is still a packaging when it is decorated, which is not well matched, and the wall effect of the entire screen is relatively poor. Remember, if you encounter similar projects in the future, you must first fully communicate with the decoration and make a good relationship, otherwise the results after Z will be greatly reduced. The edge of this screen should be matte, Z is preferably matte black stainless steel, the width is controlled within 3-5 cm, otherwise there will be a reflector, the edge is too wide, so that the proportion of the screen is very small.
Another important thing is the lighting of the decoration. Remember to use downlights sparingly. This project is such a downlight, which causes uneven brightness. In principle, try to choose a surface light source and use less point light sources.
This is a control room behind the command center, a small room separated by itself, about ten square meters. There is a light-difference window on the wall, through which you can see the situation of the command hall. Here too, the issue of decoration coordination. The glass itself needs single-sided glass, that is, the hall can be seen from the inside, but the control room cannot be seen from the hall.
A console is set in front of the observation window, customized according to the size of the venue, and an embedded mixer is made.
There are two cabinets in the back, one is the network cabinet, the other is the audio and video equipment cabinet, all inside, such as matrix, central control, power amplifier, video conference terminal, digital conference host, etc. Although the whole project is small, it has all the necessary functions and all the functions have been considered.
This is the wiring behind the cabinet. I don't know if it will work.
in conclusion.
Many times to do this kind of command center project, the following points must be considered: pay attention to the integrity of the entire system, do not lack arms or legs, and control the ratio of the large screen. Second, we must pay attention to full communication with the decoration. In principle, the decoration must be integrated, and the decoration must serve the entire system. Otherwise, the Z final system will not be effective, and the customer will blame you.
