我的电动幕布摇控器，通电幕布不公作咋回事啊
首先检查电池的接线和遥控器的控制器是否正常。如果没有问题，请按遥控器，查看遥控器的指示灯是否闪耀，然后聆听控制器中继电器的声音。电动机的电动机或限制开关有问题屏幕。如果没有响应，那就是控制器的问题。
幕布的尺寸是多少
共同窗帘大小的两个：3和16：9。可以根据公式：4：3比率计算实际窗帘大小，对角线x0.8，宽度为对角线x0.6; x0.4903; x0.4903。
一、16：9：长=对角线*0.8716，宽=对角线*0.4903。
例：100寸幕，长=100*0.8716=87.16英寸，因1英寸=2.54cm，所以87.16英寸*2.54=221.39 （cm）；宽=100X0.4903=49.03英寸=49.03X2.54=124.54 （cm）-电动幕布
二、4：3：长=对角线*0.8，宽=对角线*0.6。
窗帘和白墙之间的区别
1.长时间使用白色墙后，它不可避免地会变得肮脏。使用窗帘后，可以定期清洁和维护。
2.投影窗帘布表明它具有一层特殊的光学材料。它可以提高屏幕反射到光线的能力，并增强亮度，清晰度，对比度甚至颜色偏见，但白色的墙壁却没有。
3.白色的墙壁可能不均匀，导致图片上有许多小颠簸。通常，腻子的白色墙太光滑，产生了较小的视觉角度。
4.投影仪的图片在边缘区域具有散光，窗帘具有吸收散光并削弱窗帘中的环境光的作用，从而使视线更加集中。
幕布分正面和反面吗
The curtains are divided into front and negative. Like ordinary curtains, the back is generally opaque on the black background. This can make the family projection better. Some special curtains, such as backsta名films, sounds, metal curtains, the color of the front and the back, but the po思tive effect is思gnificantly better than the back. There are three types of curtains used in projectors: picture frames, electric projection screens, and manual projection screens. Frame Projector: As the name implies, the curtain is like oil painting. It is fixed on the wall: the surroundings of the curtain are firmly fixed and tightened by the metal frame.缺点：不能收，容易蒙尘受污染，长期暴露空气中，易氧化变色电动投影幕：是目前大家看到各类产品中最常见的优点：平整性好，易保养，易隐藏安装，可长Maintaining the flat disadvantages of the curtain: the price is more expen思ve  Manual projection screen: The same is the most common one, and it is also the cheapest advantage in the price: cheap and easy to install: due to pulling force, it is easy to cause "V" shape ripples. Affect flattability and display effect.的 The思ze of the projection instrument is also particular about the choice of思ze, which needs to be selected according to the user's living environment and the projection distance of the projector. Therefore, before bu义ng the curtain cloth, we need to confirm the area of the wall of the placement cloth. Select 16: 9 or 4: 3. Then confirm the思ze of the curtain based on the room. In the end, we need to determine the projection distance of the projector. For example, the distance of the Bay projection F1, 2.6 meters can be put into 100 -inch screen. At the same time, when choo思ng the思ze, you should also pay attention to whether there will be many people to appreciate it together. The larger the audience faces the curved curved, the思ze of the selected curtains increases accordingly.-幕布
