Wireless monitoring to family promotion

Wireless monitoring to family promotion With the continuous expansion of the application scale of our wireless network, its technology has also been continuously improved, especially the speed of wireless transmission is increasing, which has spawned a wireless network monitoring system. Wireless video surveillance is based on wireless network technology. Wireless video surveillance requires no wiring, and it uses a radio wave to monitor video and other data. The wireless video camera is an important part of the wireless video surveillance system. With the expansion of technology, the wider the scope of wireless monitoring applications.

Wireless video surveillance The new development of wireless video surveillance is mainly divided into analog microwave transmission and digital microwave transmission.

Analog microwave transmission is to modulate the video signal on the microwave channel and transmit it through the antenna. The monitoring center receives the microwave signal through the antenna, and then demodulates the original video signal through the microwave receiver. The monitoring center can also obtain clear images by controlling the pan-tilt head and the lens without delay, loss, and low cost.

Digital microwave transmission is first compressed video encoding, modulation through the digital microwave channel, and then transmitted through the antenna, the receiver receives digital signals, monitoring center equipment and then demodulation. Digital analog transmission can adapt to a more complex environment, with many monitoring points, strong anti-interference ability, and multiplexed transmission of video signals. Can also control the pan and tilt and lens, support video, playback and management, and you can choose the resolution.

Both analog microwave transmission and digital microwave transmission have their own advantages and disadvantages, but they all realize wireless video monitoring, flexible transmission, strong adaptability, fast building speed, low investment, flexible application, and a wide range of areas. They are not only viewed by network operators. It is also favored by security companies.

Compared with wired video surveillance, wireless video surveillance has many advantages such as low cost, good performance, scalability, maintenance costs, real-time monitoring and low construction difficulty. It has also been widely used in supermarkets, factories, smart buildings, bridge tunnels, port terminals and many other fields.

Wireless Video Surveillance Wide Area Applications Benefit from the portability and flexibility of wireless surveillance. Wireless surveillance applications mainly include the following types:

Unable to deploy wired monitoring application scenarios: such as transportation tools (cars, trains, ships), law enforcement management (traffic police, urban management), special escort (armed police, banks, hazardous chemicals), etc., under the conditions of mobile networks, cable networks cannot be laid and covered ;

The application scenarios that can be deployed but the cost is too high or the cost of temporary wiring may be wasted: The former, such as resource monitoring (forests, rivers, oil fields, substations, base stations, border posts, ports, scenic spots), etc., are often affected by geographical environment and work content. With restrictions, wide geographical coverage, and sparse users, the long-term work cycle for the cable monitoring circuit is very long and the maintenance cost is very high. It is even impossible to achieve the latter. The latter include temporary deployment of public security investigations, field training of troops, temporary construction sites, and temporary events. ,Exhibition Center;

Need to add monitoring application scenarios: such as homes, communities, shops, SMEs, buildings, bridges, tunnels, intersections, etc., when the second construction, it is best not to destroy the original decoration or work surface;

Emergency and personnel cannot approach the application scenarios: such as emergency command (flood, fire, emergency), flammable and explosive dangerous places, large-scale mass gatherings, important safety and security task sites, disease-infected areas, microbiological danger areas, etc., need to be shorter A complete set of monitoring network is built in time.

Wireless video surveillance or will experience several major periods of time from the current development of wireless networks, can be divided into rigid demand and optional requirements. For example, public security law enforcement, patrols, and temporary monitoring of subway stations, monitoring sites that do not have wiring conditions, cannot achieve their goals without wireless monitoring. These are the rigid demands of wireless networks. In the school's remote care, community security. In order to save the wiring and maintenance costs, the choice of wireless network video surveillance is an optional requirement. According to the development trend of wireless network video surveillance over the past years, the degree of market demand, and user experience and reflection, the author believes that wireless network video surveillance will go through three phases.

Phase I: Mainly for large customer applications At present, monitoring systems for high-end industry users, such as domestic safety projects, road monitoring for traffic, and electronic surveillance video surveillance for inspection and quarantine, are mostly large-scale metropolitan or even national industries. Video surveillance system. The demand for camera equipment is high. Wired devices were used before, and they were required to be clearly seen and stored. Now, due to work needs to get involved in wireless image acquisition (such as traffic patrols, safe city mobile patrols, urban management mobile patrols and law enforcement, etc.) and mobile video viewing and control. Because these large customers have sufficient and large procurement funds, they have always been the main business point of security companies. In the future, this phenomenon will not change.

Phase II: Small-scale business users with medium-sized and small-scale business users will be not only a potential market for wireless network monitoring, but also an important area for wireless network monitoring applications. Such users mainly refer to small shops, medium-sized supermarkets, hospitals and educational institutions that have monitoring requirements. Because users require easy installation, easy maintenance, and high work efficiency requirements for monitoring, the penetration rate of wireless network video surveillance services in such applications will have more room for improvement. Business users' demand for wireless video surveillance In addition to the basic monitoring needs such as mobile video surveillance, it is often necessary to combine the monitoring system with the business system of the enterprise. For example, the hospital uses the camera on the ambulance to carry out emergency treatment for the patient, and the adult monitors through the camera. Teach children to close the gas valve, handle emergency affairs at home, and the bank performs real-time monitoring of the internal personnel of the armored car. In short, the potential for wireless video surveillance in the commercial sector in the future will be enormous.

Stage 3: Applying to a wide range of individuals and families With the development of science and technology, people's economic level and cognition are improved. Home network surveillance cameras will be very popular. The demand for video surveillance from home wireless video surveillance users is relatively simple. It mainly focuses on the demand for video image services and alarm linkage services, and does not require too high a delay for the monitoring system. However, because of the huge data and signal flow, strong network dependence, and the need for home deployment of home wireless gateways and other factors, it restricts the development of home and personal network video surveillance. Therefore, the development and promotion of home wireless video surveillance is still relatively difficult, and home wireless monitoring applications There is still less. There are two main difficulties that exist: cost issues and awareness issues.

The most important thing in home/personal security is security awareness. There are many cases of self-inflicted injuries caused by personal negligence. In the future, how to sell security products to customers and how to change personal security concepts will become the key to the company. In the future, wireless network monitoring devices for personal/home use must incorporate more additional functions of life in order to truly attract individual buyers. Such as additional communication information, home entertainment, community services and many other features. At the same time, due to the high price of security products, individuals or families do not choose wireless network monitoring equipment. Only by improving the labor efficiency and reducing the price of commodities can companies finally obtain the security of the individual home security market.

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