Wireless video surveillance can be simply understood as another way of transmitting video and other data using wireless waves. The implementation can be basically divided into omnidirectional and directional. The current hot technologies are WIFI, 3G, WIMAX, GPRS, and Beidou. Low-power wireless technology used in civilian solutions; ZIGBEE, 433/315MH, etc. Compared with cable monitoring systems, wireless video surveillance systems make up for the difficulty of cabling and have more flexible features. In many applications, the cost of implementation is greatly reduced; wireless video surveillance systems mainly through 3G, 4G and WIFI and other wireless communication technologies for networking, combined with traditional video surveillance, formed a new application model.

Under the background that 3G technology has been popularized, there are currently several types of applications such as vehicle-mounted monitoring, law enforcement forensics, and remote command, covering such industries as public transportation, long transportation, school buses, public security, and power. Because of the wireless monitoring, vehicles and personnel can be monitored and tracked in a moving environment, forming a new type of supervision mode. However, this new monitoring system needs to be run through with the network, terminals, and supervised objects and managers to become a complete system.

Currently, mainstream manufacturers in the industry have already entered the level of fine-grained application of wireless video surveillance. There is a common version for conventional services, that is, simple superposition of wireless video monitoring services on the basis of traditional fixed network monitoring. Add services and functions mainly based on wireless video and audio uploads, real-time mobile video browsing and control, and also customized versions for specific services, that is, on the basis of analyzing the actual needs of industry users, integrating with existing business systems, and integrating Achieve greater breakthroughs in sexuality and incorporate more mobile information processing and intelligent control functions.

Due to the limited 3G bandwidth and higher tariffs, limited WiFi transmission distance and poor mobility, wireless video surveillance has not been used in large-scale commercial applications. According to different roles of the manufacturers, the ratio of the investment and return that the wireless video surveillance service occupies in its daily operations is not the same, and it is generally not more than 10% for the mainstream manufacturers in the industry. In addition, due to the equipment between major brands and manufacturers, it is almost impossible to be compatible with each other. It also brings great challenges to the development of wireless video surveillance.

Accelerate the popularization of 3G wireless video surveillance market Nowadays, 3G wireless video surveillance has many advantages such as wide coverage, easy deployment, high reliability, high data throughput, low cost, convenient monitoring, and diverse services. However, the factors such as the limited bandwidth and frequency resources of wireless networks, the high bit error rate of wireless channels, and the fact that wireless transmissions are far more expensive than limited transmissions and public communication systems belonging to shared channel resources have also become the bottleneck in the development of 3G wireless video surveillance technologies. However, relying on 3G networks, it focuses on digital video compression, transmission, storage and playback. It features practical intelligent image analysis and integrates with alarm systems and access control systems on the same platform, thus avoiding the need for traditional monitoring systems. With the problem of cabling network, it is easy to solve the long-distance transmission problem of the signal, and the 3G wireless network video surveillance that achieves multi-point remote monitoring and seamless integration with different monitoring systems is still unmatched by previous generations of video surveillance systems. Domestic 3G monitoring will begin to mature in the mobile 3G wireless broadband network application in 2010, which will be a major trend in the field of video surveillance in the future.

3G wireless video surveillance is a 3G mobile video surveillance device that uses the latest 3G communications technology to meet the needs of home, small business, or specific industry users. It is a simple, easy-to-operate, and cost-effective 3G mobile video surveillance device. Through 3G wireless Internet access 3G network (support China Mobile TD-SCDMA, China Unicom W-CDMA, Telecom CDMA2000), use the 3G wireless Internet access port to connect to the camera, just insert the SIM card in the 3G version of the hand-eye through the back end can be used . 3G wireless video surveillance is gradually favored by the market because of its convenience and high performance-price ratio, and it has been used in fire prevention, security guarding, personnel monitoring, remote management and other fields, and is particularly suitable for individuals, families, shops and so on.

4G strikes open the wireless monitoring HD era 4G for a better future Because of its ultra-high data transmission speed, it is regarded as a well-deserved "high-speed dialogue" among the machines by the China Internet of Things school-enterprise alliance. From the point of view of the security monitoring industry, the networked, intelligent, and high-definition monitoring is the goal of the industry's self-pursuit.

However, the intelligence of wireless monitoring depends on the development of network technology and high-definition technology. Once network low speed is the bottleneck of the development of wireless monitoring, but now the birth and popularity of 4G networks will be an irreversible trend. The rapid development of 3G and 4G networks has opened up new prospects for security monitoring.

Wireless mobile monitoring is the branch of network monitoring, and the pressure of network transmission is even more prominent. The rise of 4G networks applies the advantages of mobile wireless transmission to the field of mobile monitoring. From the perspective of pilots at that time, the speed of 4G network is 10 times that of 3G network, the download speed is up to 100M, and the upload speed is 20M, while the broadband of general 720P HD monitoring needs is between 2M and 4M. This is an excellent way to meet the outstanding demands of HD surveillance.

If the 4G network can be widely used in the country, then the equipment that used to rely on the second and third generations of network transmission will gradually lose the mall. In the future, under the impact of the 4G wave, the upgrading and transformation of the old commodities for security work will be certain.

From the perspective of security work environment, network monitoring has been the major trend of work. However, the market share of internship shopping centers for network monitoring is still low, and people in the industry believe that this is due to the fact that the domestic network environment cannot be maintained. The domestic surveillance HD trend has become even more apparent. Many well-known monitoring equipment manufacturers have now initially introduced higher-clear 700-line cameras, and some manufacturers have even begun to initially introduce millions of pixel cameras. The extensive use of these high-definition monitoring front-ends will place greater stress on the back-end.

Therefore, the industry is widely applauded about the arrival of 4G networks. Xiao Bian believes that, compared with 3G, 4G is mainly in the transmission bandwidth, transmission speed has improved a lot, in addition there will be a big break in stability. At the same time, the application fee of the traffic is also a topic of concern to many people. Since the plans formulated by various operators are not the same, the operational efficiency fee is still high, and the promotion of wireless high-definition surveillance is also difficult. It is understood that the 4G network uses a gradual introduction of the method, in the original 3G based on the technology to upgrade, the cost will naturally reduce a lot. The relevant person indicated that the cost of the 4G network will be lower than the 3G package fee at that time.