Wireless monitoring will develop in the future

The wireless video surveillance system is a small-scale remote digital surveillance system. It can be used with a network camera. It can be wired or wirelessly connected to a network. It is easy to install, and does not require users to configure additional computers and video recording equipment. The user can use a mobile phone or a computer as a monitoring terminal device to receive alarm information and view monitoring video anytime, anywhere. With the development, wireless remote video surveillance system is undoubtedly the future direction of development. This article briefly introduces the wireless monitoring market application and technology development types.

Intelligent wireless monitoring industry application dialysis From the security market research and analysis point of view, smart wireless video surveillance is currently used in:

● Cell Security Wireless Video Surveillance In China, cell security is still in an initial stage of application, and there are many deficiencies. The first is the monitoring of the use of land in and around public areas. In the perimeter and the main entrances and exits, cameras are installed. The monitoring center in the community operates 24 hours a day. However, we should understand that regardless of how dedicated the security guards are monitored, they cannot monitor multiple video images at the same time and they cannot stare at them for a long time. Watch TV watching. Most districts have only 1-2 computer monitors and dozens or even dozens of cameras for round-robin monitoring. This makes it difficult to effectively monitor in real time. Moreover, the ways in which criminals commit crimes have been diversified. The traditional security system has no way to meet the demand. Second, the community network alarm system is not perfect. Some high-end districts all have access to alarm panels and detectors, and are networked to cell monitoring centers. However, few systems are actually in use.

● The applications of prisons, detention centers, and wireless video surveillance prisons, detention centers, and drug detoxification centers are mainly used indoors. The indoor environment is relatively single and the environmental changes are relatively stable. The various smart wireless video analysis functions are applied in this environment. The analysis will extract some important and high-accuracy applications, such as: wireless video quality diagnosis, cordon, rise, regional guarding, strenuous exercise, value posts, etc., in order to achieve a relatively high detection accuracy (99% ), lower false alarm rate, to achieve better results of auxiliary management.

● High-definition bayonet video surveillance In the application of the safe HD bayonet in the safe city, the outdoor section is achieved through a single camera specification and model, consistent installation condition requirements, special light-supply system design, controllable camera parameters, and fixed camera scenes. The imaging maintains good consistency during daytime, night, and various environmental changes, enabling the system to capture high-definition pictures of moving targets and identify features.

● ATM Bank ATMs Bank ATM ATMs generally have a relatively small range, a relatively uniform environment, and generally have better lighting conditions. This is a very good condition for smart wireless video analysis. Moreover, bank ATMs involve sensitive money, and the need for security is relatively high. Specific smart wireless video analysis functions are used successfully, such as face recognition, trailing, strenuous exercise, and abnormal movements.

● Industrial inspection video surveillance Industrial inspection has been widely applied in smart wireless video analysis technology. The resolution of intelligent industrial cameras can reach 1/10mm, which exceeds the artificial vision. Special cameras can achieve higher accuracy. In the beverage industry, smart wireless video analysis can help determine the height of installed beverages, correct cap installation, and whether the manufacturer's logo is clear. Industrial inspections are generally indoors. Fixed camera installation conditions, adequate fill light, and relatively single detection Features make smart wireless video analytics relatively more successful applications. Including in automotive manufacturing, tire manufacturing, logistics, machinery manufacturing, printing quality inspection, wireless video processing industry, steel casting industry, agriculture and other fields to obtain more successful applications.

● Medical Imaging Analysis In the medical field, wireless video intelligent analysis has also been successfully applied. Using modern scientific and technical instruments, it is possible to take clear pictures under the microscope. The use of physical methods for analysis is the most reliable medical method. A typical application is a urine analysis instrument. Although chemical analysis methods such as dipsticks can be used for analysis, changes in the original cells may occur due to chemical changes. After stirring by a physical method, precipitation is performed in HD. Shooting with a camera, you can get a stable and clear picture, and then use wireless video intelligent analysis methods to count the different types of cells, which can maintain the most realistic results, this method is often used in high-end or difficult cause detection.

Types of wireless monitoring technology comparison In the current security monitoring engineering technology, security monitoring monitoring technology has entered multiple wireless monitoring applications, can be equipped with wireless transmission interface and media types are varied, mainly from the data signal transmission, Zigbee And Z-Wave Wireless Sensor Networks, GPRS, Broadband WiFi WiMAX UWB 3GTD to TD-LTE 4G, mainly used for transmission technology, wireless security monitoring systems, the only difference lies in the effectiveness of different wireless video surveillance applications. The technologies of wireless monitoring systems used in mainstream applications, such as 3G, WIFI, and WIMAX, are affected by the frequency bands, transmission power, and other factors of microwave signals, and their respective network transmission rates, coverage ranges, and performance differences in other technical parameters are currently used for high-speed transmission. The images are mostly WiFi technology and WiMAX and 3G, 4G are not used on a large scale.

The application of these types of broadband wireless technologies in the wireless surveillance market is mainly based on the WiFi (Wireless Fidelity) 802.11b standard and WiMAX (Worldwide Interoperability for Microwave Access), that is, two kinds of global microwave interconnect access, which are mainly used in urban wireless monitoring.

WiFi surveillance camera has the following advantages:

● Signal transmission radius up to 100 meters, can be used in the office, or even the entire building;

● The transmission speed is very fast, up to 11-54Mbps, which can satisfy personal and regional image and information transmission;

● The threshold is relatively low · The supplier enters the engineering field, as long as the AP within the monitoring range sets the “hot spot” and accesses these places via high-speed lines. The Internet supports simple monitoring of laptops, workstations, even mobile phones or PDAs using wireless LANs. Get video transmission of high-speed wireless network access in the area.

WiFi is widely used and is the most widely used wireless technology in wireless surveillance. After years of development in short-distance transmission, WiFi has already had a very good application basis. It is mainly used in wireless network cameras, and many domestic WiFi wireless network cameras have good performance.

The application of WiFi is very extensive and is the most widely used wireless monitoring technology. After years of development, many domestic WiFi wireless network cameras and WIFIs have had a very important application base in short-distance transmission, and have also performed well in wireless network cameras.

WiMAX is not widely used in China as an international 3G standard. The main reason is that WiMAX has not been allowed to enter the country at this stage, and there is no large-scale network infrastructure. Its advantages are summarized as follows:

● WiMAX has a long transmission distance, the wireless signal transmission can reach 50 kilometers, the network coverage area is 10 times that of 3G (TD-SCDMA), a small number of base stations can achieve coverage of the city;

● Provide higher speed broadband access (up to 70M), 30 times faster than 3G;

● As a wireless metropolitan area network technology, it can be a WiFi hotspot connected to the Internet, and can also be used as xDSL and other wired access, and provides multimedia communication services and other advantages.

Although WIMAX has not been applied in large scale in China, WiMAX is an ideal transmission mode for wireless monitoring applications and has attracted the attention of domestic users. It has a WiMAX architecture image monitoring system for high-end residential applications.

In addition to the above two transmission technologies, it is the future development of 4G LTE (Long Term Evolution) that the global mobile communication industry is more concerned about. LTE is developed by the 3GPP organization and can be said to be the final version of 3G. The bandwidth of 20MHz can be provided for 100Mbps, and the bandwidth and speed of uploading and downloading at a speed of 50Mbps have been improved, so the image data is more suitable for file transfer. The application of ultra-high bandwidth wireless monitoring systems, including applications in video surveillance camera systems, is currently the most popular method.

Wireless remote monitoring is the future development direction Wireless remote video surveillance, together with high-definition and smart, will become the main development trend of the video surveillance industry in the next few years. With the continuous development of 3G technology, the application of civilian technology and technology integration will become the development direction of wireless remote video surveillance systems.

● The application of civilian video surveillance systems is undergoing a process of transition from industrial applications to civilian use. The emergence of wireless application terminals has contributed to this process. With the further development of 3G technology, handsets held by each individual have become the best wireless terminal service platform. People can realize wireless network monitoring through mobile phones. At the same time, home wireless networks are also emerging. People can use laptops to access networks through wireless routers and quickly build HWLANs (home wireless networks). Home-based network cameras that support wireless mode will take care of home care and shop visits, making wireless monitoring technology more accessible to home users.

● Technology Integrated Network Video surveillance technology has always been on the path of technological integration. From the initial network video server, to the subsequent launch of the one-piece network ball, to today's very popular network cameras, the network video technology has realized the integration with the ball-head platform technology and the camera technology. When wireless technology is increasingly involved in the field of video surveillance, the combination of network video technology and wireless technology has become a matter of course, which also helps to further improve the stability of the product and the ease of application, is conducive to the vendor segmentation network Video market to avoid homogenous competition.