Wireless intelligent security explosive growth

By 2017, the global video surveillance wireless infrastructure market is expected to grow at a compound annual growth rate (GAGR) of 17%. Global growth will lead China, with a compound annual growth rate of 28.8% in revenue during this period. The second fastest growing region is the rest of Asia (including India), which will grow by 27.9%. Mexico's CAGR is 23.1%, Brazil will grow 17.4%, and other regions of South America will grow 26.6%. In the next few years, Asia is expected to become the fastest-growing region in the world because it currently does not have any wired monitoring infrastructure, and wireless costs in the region are relatively low and security needs are increasing.

Wireless intelligent security market explosive growth "Security monitoring industry as the basis for the development of the Internet of things, will benefit with the further development of Internet of Things technology. Related to this digital, analog, HD-SDI high-definition technology to improve comprehensively, will give users a wealth of With the improvement of the algorithm, the intelligent analysis technology has begun to enter the actual project construction, especially the image detection, image retrieval and other map detection functions will be strengthened.” Li Xuran, Brand Director of Tianjin Tiandi Weiye Digital Technology Co., Ltd. read the guideline and issued it. This kind of emotion. Li Xuran believes that the total output value of China's security industry has reached 325 billion yuan in 2012. Under the influence of the new policy, China's security market is expected to achieve a 30% growth rate. The applications of finance, public security, transportation, medical care, education, culture and technology, communications, energy, and production enterprises will be more extensive and in-depth, and the business opportunities in the civil security market will also show explosive growth.

“The formation of the Internet of Things will also realize the intelligentization of security. The technologies that could not be remotely used before can now be interconnected through sensor technology to form a highly intelligent security system.” Consultant at CCID Consulting Center for Electronic Information Industry Research Wang Ying pointed out that one of the most important functions of IoT security is video surveillance. It is not only the simple transmission and processing of data, but also includes the collection of sound, video, and temperature, thus forming a complete information complex. This is one of the most obvious features of the security of the Internet of Things that distinguishes it from ordinary security technologies.

"The success rate of video search is over 99%, smart video recognition rate is above 90%, accuracy during the day is above 90%, and nighttime accuracy rate is over 80%." Li Xuran stated that intelligent video surveillance has become a sharp weapon for enterprises to occupy the commanding height of the security market. Nearly 400 cities have applied the company's products and technologies in the construction of smart cities.

Telecommunication operators also aimed at the Internet of Things home security market, first, China Telecom launched the "Global Eye" video surveillance business, both for the industry can also be used for home security monitoring, but also launched for smart home, home Security's "3G Smart Butler" business; China Mobile is tailored specifically for home security tailored to the "livable pass" business standard, allowing users to keep mobile phones at home, magnetic door, infrared detection, gas detection and even camera Monitoring status, anti-theft alarm, video surveillance, gas alarm, fire alarm and elderly help.

“The wireless monitoring solution has achieved 3G wireless surveillance output standard definition images in terms of image storage and traffic. Users can select standard definition or high definition according to their definition of image definition, and the image resolution also varies from QVGA to 1080p.” Wei Wei, Dean of the School of Electronics and Information Engineering at the University of Science and Technology, said that supporting wireless or 3G surveillance electronic eye products will become the new darling of the market. In addition, with the forthcoming 4G era, 4G technology will gradually be applied in security products.

Rapid development and difficult to meet technical challenges Although wireless monitoring and traditional monitoring solutions compared: a comprehensive low cost, short installation cycle, easy maintenance, networking flexibility, scalability, easy transformation, low maintenance costs and many other advantages. However, disadvantages such as being vulnerable to interference, data security, and insufficient bandwidth may restrict the application of wireless technology in video surveillance systems. In the video surveillance system, data security and real-time transmission are all critical parameters. Therefore, in the anti-jamming, bandwidth, transmission security and other issues, wireless video surveillance systems will still face challenges.

1, wireless video surveillance anti-jamming because the wireless technology is based on the microwave carrier, the video data attached to the wireless microwave transmission, for the presence of clutter wave interference in the air can not predict in advance, often in practical applications, the signal interference is Very common situation.

In order to overcome wireless interference, it is necessary not only to work hard from the anti-jamming aspect of the wireless technology, but also to work together in many ways; for example, video encoding algorithms strive to adopt high-efficiency video compression ratios to achieve the same quality of video data and have better file sizes. Reduce the possibility of files being disturbed; improve the ability of video transmission to re-correct errors and provide re-restoration algorithms for transmitted erroneous data.

2. Wireless video monitoring bandwidth Obviously, the wireless network bandwidth is far less than the wired network. In the wired network system, the available bandwidth of the video surveillance system can easily reach 70Mb/s to 700Mb/s. In wireless network systems, the usual bandwidth is not higher than 5Mb/s to 25Mb/s.

For the video surveillance system features, mainly uploading video data is large, while the downlink, such as control data flow is relatively small, in the proposed device wireless video surveillance system, the main calculation of the uplink bandwidth size, which determines the camera access number. In addition, environmental factors often affect bandwidth, and wired networks are much less affected by the environment than wireless networks. Only when the wireless network signal is strong can it achieve its standard bandwidth. If there are any obstacles or the antenna is slightly moved down, the wireless network signal may be significantly attenuated. For example, an 11Mb/s wireless network can only provide 5.5Mb/s bandwidth for video streams. However, the wireless network bandwidth in the environment is probably only 2.75Mb/s.

However, with the development of no technology, 802.11n technologies with speeds of up to several hundred megabits are leading wireless applications to faster, higher, and stronger applications. In practical video surveillance tests, APs based on 802.11n technology are deployed at 150 meters. Under the scope, it can achieve 100Mb/s stable transmission capability, which means wireless 802.11n technology can support high-definition access, making up for the narrow wireless bandwidth and the inability to achieve high-definition transmission.

3, wireless video surveillance data security Wireless open transmission method, destined for the wireless network transmission data is likely to be intercepted, which will bring great risks to sensitive video data. If a competitor or a malicious person takes an illegal approach, the intercepted wireless signal can be easily deciphered and transmitted in a wireless manner.

Therefore, the application of security wireless video surveillance system, in addition to the ability to ensure long-term trouble-free operation of monitoring equipment, the security of video data on the wireless transmission link is also a non-negligible part, video transmission must have anti-theft function, video data Encryption and other means such as tamper protection can ensure the validity and security of the final data.

Wired and wireless co-prosperity, monitoring and control, whether from the maturity of technology applications, network integrity, consumer attitudes, or the transformation of operators' operating models, it will take a while for the entire wireless market to mature.

Zhang Qingzeng, the industry director of ZTE's marketing department, said: "Typically, a complete wireless monitoring system is not entirely composed of a wireless technology. It is a combination of multiple wireless technologies that complement each other and provide the best for users. The most practical monitoring application is interesting. Within the wireless monitoring, the trend of FMC is also reflected. With the development of technical standards, WiMax will gradually realize the mobilization of broadband services, while using LTE/4G. Committed to the realization of broadband in mobile services, the degree of integration between the two will be higher and higher."

Both wireless monitoring and cable monitoring have their own application characteristics and technical advantages. The focus and application advantages of wireless monitoring are mobility and portability, while wired monitoring is reflected in transmission speed and reliability. The core supporting role behind the high-speed and convenient wireless access network must be a large-scale, high-quality bearer grid. The two will further complement each other and develop together. The convergence of wireless and wired is the trend of the times.