An ordinary DV camera can take real photos as long as it is connected to an information transceiver. This service called portable video transmission can facilitate the expo security personnel to quickly transmit the live back to the command center through the TD-LTE wireless mobile network. On the 15th, the TD-LTE broadband mobile communication demonstration network constructed by China Mobile was opened, and TD-LTE, known as quasi-4G technology, will be used during the Expo. The 3G network has accelerated the speed of mobile Internet access, making applications such as video phones and mobile games in full swing. Compared to 3G networks, quasi-4G TD-LTE has reached a new level. Experts say that TD-LTE shows many revolutionary features compared to the third-generation mobile communications. The most prominent feature is that the bandwidth is much wider than the current fixed broadband. If the third-generation standard can make video calls, Then TD-LTE can transmit high-definition TV. At the demonstration site on the same day, some TV station staff were very excited: "The effect of portable video transmission exceeds the satellite digital transmission technology currently used by the TV station, so that one person can achieve live broadcast with a camera." Such a conjecture was obtained. Experts on the spot confirmed that it is understood that there are currently six such cameras in the Expo Park, and Xinhua News Agency and other communication agencies have begun to use this technology. In addition, TD-LTE's video playback effect is relatively good, without mosaics and delays. The author saw on the big screen at the demonstration site that the wireless high-definition video transmitted by a 4 megapixel camera was very clear, and even a small piece of paper on the ground was clearly visible. According to reports, the TD-LTE demonstration network built by China Mobile at the current World Expo covers 5.28 square kilometers of the Expo Park, and a total of 17 TD-LTE outdoor stations have been built to achieve indoor coverage of 9 venues, including 7 venues in Pudong , 2 venues in Puxi. Four scenes were switched on the big screen of the demo site. The staff introduced that the four cameras were installed in the Expo TD test car, the core computer room, the Expo Park and the park dock, whether the camera is on a moving car or fixed Location, all can send clear images for the video surveillance center. It is understood that the theoretical peak transmission rate of the TD-LTE demo network can reach 100 Mbps in the downstream and 50 Mbps in the upstream. At the Shanghai World Expo, demonstration services such as mobile high-definition conferences, mobile high-definition video surveillance, mobile high-definition video on-demand transmission, and portable video transmission based on the TD-LTE demonstration network will be open to the public. Will be available for visitors to experience. The world's first TD-LTE network operated by China Mobile in the Expo Park is just a demonstration network, but Wan Guoguang, deputy general manager of China Mobile Shanghai, which is responsible for the project, found that this technology has aroused general interest in the public. During the World Expo, China Mobile and its partners will conduct a series of featured service application demonstrations through the TD-LTE network. For example, through the TD-LTE mobile high-definition live broadcast service of important venues, visitors can view the distribution of people flow at the entrances and exits of important venues in the park through real-time high-definition video on the Huangpu River ferry, so as to reasonably arrange the tour route; Live broadcast and watch real-time scenes in the park. The mobile high-definition video surveillance service will provide real-time high-definition video surveillance images for land and water in the Expo Park. The media writer will experience high-speed Internet service through a high-speed Internet card, and can also transmit it to TV stations and related production platforms in real time through the newly launched LTE "point-and-shoot" service. In addition, special services such as high-definition telepresence, high-definition video conferencing, and high-definition live navigation will fully demonstrate the technical advantages of TD-LTE. Cao Shumin, deputy director of the Telecommunications Research Institute of the Ministry of Information Industry, believes that the World Expo is an opportunity for TD-LTE, which can allow more countries to understand TD-LTE and will play a great role in promoting the entire industry chain. Liquid Crystal Display For Instrument Liquid Crystal Display For Instrument,Large Industrial Precision Lcd Display,Small Industrial Body Thin Lcd Display,Precise Liquid Crystal Display Dongguan Yijia Optoelectronics Co., Ltd. , https://www.everbestlcdlcms.com
Domestic 4G network system put into the World Expo
Domestic 4G network system put into the World Expo