According to Yubo Zhiye Market Research Center, the demand for industry video surveillance solutions is increasing. From an industry perspective, in the past few years, the development of video surveillance in the government, telecommunications, and financial fields has been at the forefront of the entire market, while the deployment speed of other industries has lagged far behind despite certain demands. This also means that the video surveillance market has broad development prospects. The era of analog surveillance systems. In the 1960s, as black-and-white cameras gradually entered the civilian field, the earliest video surveillance system was born, called a closed-circuit television surveillance system (CCTV), which used analog transmission with VCR (Video Cassette Recorders) as the core. The collection, transmission and storage of video and audio signals all adopt analog mode, and the picture quality is high, but the limitations are also obvious: the system only covers a small geographic area, and it is difficult to form a large-scale cross-regional video surveillance system; system installation , Commissioning, operation and maintenance cost and difficulty are relatively high; it is difficult to form a system linkage with other electronic systems such as electronic access control and perimeter prevention. In contemporary times, this technical system is difficult to be compatible with the information system technology system. It has gradually withdrawn from the market and is replaced by digital and networked video surveillance systems. Digital monitoring system. In the mid-1990s, the second-generation video surveillance system represented by DVR (Digital Video Recorder) appeared in the video surveillance market. DVR allows users to sample and digitize analog video signals and store them on the hard disk of the computer for playback on the computer or large screen. The cameras at this stage still belong to the category of analog cameras, and they record analog signals. In the late 1990s, with the increase in network bandwidth, computer processing power and storage capacity, and the emergence of various video technologies, video surveillance entered the era of all-digital networks, known as the third-generation remote digital video surveillance system. During this period, my country's security industry further developed, and local security companies were established one after another. Intelligent surveillance system: the era of network cameras. With the development of network cameras and the Internet, intelligent video surveillance systems have emerged. Intelligent video surveillance can automatically detect, segment, track, classify and identify areas of interest and targets in complex scenes, and detect and label abnormal events. Research institutes and companies such as IBM, Sony, and CMU are all engaged in this field. A lot of research. In the past ten years, artificial intelligence and deep learning have developed rapidly, and the accuracy of intelligent video surveillance algorithms has also reached a new level. In the 2015 LFW International Face Recognition Competition, the accuracy of machine recognition reached 99.55%, surpassing the human eye for the first time. The technological bottleneck is gradually broken, making intelligent video surveillance gradually become the mainstream of the future. 86 inch nano blackboard Nano blackboard is a high-tech interactive teaching equipment, using the world's leading nano touch technology, it can seamlessly switch between the traditional teaching blackboard and the intelligent electronic blackboard through touch, and the teaching content can also be carried out when writing with chalk. Synchronous overlay interaction. The traditional blackboard is turned into a perceptible interactive blackboard, which has achieved an innovative breakthrough in interactive teaching.Smart Nano Blackboard also has a Interactive Whiteboard function, 20 electric touch functions can be realized through capacitive touch technology, and writing on the blackboard can be done by fingers. Nano blackboard is a feature-rich multimedia teaching device. 86 inch nano blackboard,Intelligent Blackboard, Smart Interactive Tablet,Interactive Blackboard Jumei Video(Shenzhen)Co.,Ltd , https://www.jmsxdisplay.com