When the letter of the evidence stands, exhibit booth, showing the card stands, booth exhibits, evidence shows ..

With the continuous development of information technology in education and the deepening of education reform, teacher's teaching methods are constantly changing. Many schools in the promotion of multimedia assisted teaching, before those high-end video booth has gradually entered into the ordinary classroom. However, comparatively speaking, after all, a new video booth teaching equipment, consumers also understand it is not very deep. In fact, the video booth during the installation and operation of which there are many details that need to know, so as to allow the product to achieve the best results, but also in order to effectively protect the product. Today, the era of network projector on for you a brief introduction, consumers can serve as a reference. 1, the video booth used for teaching, pay attention to ensure a suitable distance between it and the projection screen while adjusting the focus, to ensure that the system can have the best display projection, all other devices should be placed and easy to wire without affecting the people watching place. 2. When using the remote control video booth, should try to make the remote control transmitter at the mouth of the remote video booth hosts receiving port, in order to achieve higher operating sensitivity; if you find the remote control does not work, then you first need to check the remote control whether the battery is charged, then sent to the remote control transmitter port and remote control video booth hosts receiving port wipe clean to avoid dust affect the remote control work if the remote control still does not work at this time, then re-confirm the current Are you using a remote control and a video booth belonging to the same model. 3, at the beginning of the use of video booth, the user should be based on different environment, to conduct some necessary adjustments to the operating parameters of the video booth. For example, try to use the projector at the projection material, so that the video booth projection focus and zoom and image positioning; Second, we must use the environment to the light conditions to adjust the brightness of video projection booth, contrast and color; the third point , but also to adjust the scanning frequency to adapt to different sources, eliminate unstable image, only prepare the above, in order to make the video booth in top working condition. 4, the choice of video booth, in addition to interest resolution CCD technology such indicators, but also pay attention to the detection of a number of other indicators, such as black and white color reversal, reversing positive and negative film, the quality and quantity assist lamp sources, How much input and output ports, whether the serial interface, whether an infrared remote control functions, etc., of course, choose these indicators are licensed under the premise of funds carried out. 5, in the video booth to debug parameters, if you find the video booth can not focus, it should first check whether the close-up lens is attached CCD camera head; secondly look at the video booth mode is in the auto focus mode, if currently in manual focus mode state, then it must be readjusted to the automatic mode; proceed further to ensure that the extendable rod in the correct position; if it is satisfied the above steps are normal, and the video booth still can not focus on it, we then carefully check projection material itself is clear, or to see if there is dirt and stains on the projection lens cover, these reasons may cause the autofocus failure. 6, the choice of video booth, in order to ensure the stability and reliability of products, we should use a professional test cards for comparative evaluation of all aspects of the video booth, content focus of the test include the Visualizer autofocus accuracy, Showcase the true color of the degree of reduction, contour correction lens, the lens focus of uniformity and keystone, of course, we can also go directly to consult an experienced expert to help together to buy the video booth. 7, the use of video booth, in order to avoid unnecessary trouble, we should carefully read its instruction manual to learn safety rules video booth. Before turning on the power, for example, to display a stable video booth, while away from strong heat source, for example, avoid direct sunlight, away from all kinds of cooling, heating equipment; in front of the boot, but also comes with the original cable video booth and wires connect related peripherals, rather than using alternative line connecting an external device, because alternatives are likely to cause quality output picture degradation or damage to the equipment. In short, we try not to make the video booth outside of its technical conditions. 8, if the video booth suddenly appeared no image display fault during operation, the first should check Visualizer outlet is loose or power failure, followed by carefully check all cables connected to the video booth especially video signal cable The emergence of the phenomenon of loose connections; and also check whether the proper position telescopic camera is perpendicular to the object and the table. 9, once the video booth can not be excluded encounter trouble can be resolved by hand at work, please do not stand on their own to disassemble the video, but should be checked for a professional repair, or to special service centers to repair, so as to avoid unnecessary trouble. In education and teaching, physical booth, with its clear physical projection welcomed by teachers and students, it can be all kinds of slides, models, transparencies, presentations and other video camera clearly, vividly displayed on the projector screen, and simultaneously storing digital video information to a computer, so as to improve the standard of teaching purposes. Select the right kind booth physical booth with good premise, that kind of stand for the first time users who contacted them the how to buy it? 1, suitable model is the first to pursue on the market due to the current stand-kind model range, a range of different models of its application is completely different, so we must first determine the appropriate model according to the requirement. For example, if we pursue high-quality projection demonstration effect, then both sides should light desktop document cameras are the ideal choice, this type of product can be shown to facilitate the best presentation items; If you want physical booth location is not fixed , you can choose the floor separate physical booth, this type of product because the base plate separation, can make physical booth portability enhancements, it is very suitable for moving within a small range; If you want to travel using the document camera, then you should choose a portable products, but the price of this product is very expensive; if only a general-purpose words, unilateral light desktop document camera should be the appropriate choice, and use of the product is also very broad, and its unilateral light for regulating video light intensity booth needed to facilitate the best presentation is displayed items, different positions stand unilateral light varies, but does not affect the results. 2, in fact, a correct understanding of the brand to physical booth also like general merchandise, most important to the quality of products, then the face of so many brands on the market, how do we choose? Since the document camera is a kind of high-tech electronic products, only the advanced technology in order to make products have features, perfect performance in quality, brand manufacturers and professional vendors with a large number of high-level technical personnel and scientific research, to provide software and hardware Technically protection. The authentic brands and regular professional dealers, places abundant human, material and financial resources to the users a reliable guarantee. Therefore, they can provide a good service. In order to ensure their physical booth buy is genuine, then we must go to a regular sellers to buy physical booth where, for example, manufacturers recognized stores and regular professional dealers buy the brand at the same time kind of stands, which means buy a reliable quality and good service. Of course, content and performance of services is there are some differences. But at least you can be sure, physical booth interior brands structure, configuration and even the external packaging is better, unlike those "mobile" profiteers engaged in one-shot deal. I start from the actual experience, we make some recommendations to that purchase physical booth is best to buy the kind of formal brand products, but there is no need to buy those great reputation physical booth, this is because the regular brand can to ensure that we can get quality service, and a great reputation brand and general brand of physical booth in and use the function is not much difference, but the price may have a world of difference. Currently on the market like Sony, Samsung, JVC, Morningstar categories of products are more well-known brands, but at the same time the market is also filled with a lot of small brands. We can according to their own situation to choose the right brand of physical booth. 3, low price is not necessarily an affordable price is also very important in the selection of physical booth, with good performance and low cost of the product will be everyone's first choice. Many users think the price is cheaper the better, but we often find that if they buy a low-cost physical booth, so future maintenance products in question will become your lingering "nightmare." Now the price difference between physical stand is very large, and some only about 10,000 yuan, while others as much as 20,000 a year, why the price gap so big? In fact, the price gap caused by physical booth the most important reason is to spread its core elements. Physical booth core component of CCD cameras for, it determines the quality of image, but also determines the kind of stand prices. CCD chip main origin markets are Japan, especially SONY CCD chip's performance known in the industry for its quality, but also its price is very high. Generally, it is twice the price of a number of Korean products. Physical booth on the optional CCD chip, is also divided into two categories: the emphasis on product quality companies tend to choose Japan, especially the SONY CCD, and some emphasis on product cost and price-performance companies tend to choose South Korea CCD. Should be said that the policy of both options have their own reason to do so can also give users more choice, the key is we have to understand the causes of the price difference, so as to achieve targeted in the purchase.