Problems encountered in the development of network cameras

Looking at the development of the security market, the application areas can be roughly divided into two directions: industrialization and civilian use. In the current large market environment, the low-end market for security products has developed rapidly. At the same time, this development trend in the security market has brought new opportunities for video surveillance in the security industry. Network products occupy a relatively large share in the foreign security market, but most of the domestic users are still based on simulation.

The network camera is a new generation camera that combines the traditional camera and network technology. It can transmit the image to the other end of the globe through the network, and the remote viewer does not need to use any professional software, as long as the standard web browser ( Such as "Microsoft IE or Netscape) can monitor its image.The network camera built-in an embedded chip, using an embedded real-time operating system.The video signal sent by the camera is digitized and compressed by an efficient compression chip, and transmitted to the Web server through the network bus. The upper user can directly use the browser to view the camera image on the Web server, and the authorized user can also control the actions of the camera pan-tilt lens or operate the system configuration.

In recent years, network cameras have been in full swing, and they are still mainly used in some enterprises and institutions. However, the civilian consumer market is the biggest cake, and only when it comes to millions of households can we truly say that it has become popular. Although telecommunications and the government are now promoting the importance of home network cameras in the remote prevention of homes and the care of the elderly and children, this is still not enough to be widely known. In the process of universal application of network monitoring products to mid-to-low-end markets, the wireless monitoring equipment is freed from the traditional wiring constraints of the monitoring products in terms of cost and installation engineering, broadening the application of outdoor mobile security, especially on mobile objects. Realize monitoring.

At present, network cameras have become popular in the low-end security market, but they are mainly facing several practical problems.

First, network delay and compatibility issues

Because of the illusion that the earlier network camera's delay and instability caused the user, the current compatibility is the most need to solve the development of network monitoring.

Second, the network bandwidth restrictions

Another limiting factor of the popular network cameras is the network bandwidth problem. The network cameras capture the dynamic images. Only one second can upload and download above 135K. The smooth transmission can ensure that the images will not be paused and tailed, but China The current network speed in the home is far too short.

The promising prospects of network cameras are not optimistic. This requires that the cooperation among manufacturers, governments, and network operators can improve.

Third, the use of product simplicity

The installation of ordinary security cameras and other products has professional installation personnel. The network camera is a new technology camera that integrates common camera and network technologies. Its working principle is to use the network to monitor the image transmitted to any place in the network. Where in the world, just in the browser can view the monitoring screen. The application of the network camera requires the user to install and debug on his own, and he must have some knowledge of the settings of the network and the computer. Ease of use and simplification are the first questions of popularity. This will solve the use of more people.

Fourth, the cost of network monitoring storage is difficult to control

In the field of video surveillance, the cost of back-end storage cannot be ignored. When network monitoring gradually spreads to home users, the cost of front-end equipment may be clearly priced, but the cost of this back-end hard disk storage is indeed difficult to control. Especially for megapixel network high-definition surveillance cameras, high-definition picture quality and portable storage can not have both. Unused users have different requirements for image quality, which results in different storage space and storage device investment. When the cost of the entire monitoring system can be truly controlled, it seems that the popularity of high-definition network products can also look forward to.

What direction will future network video surveillance products develop?

1. Facilitation and Mass Compatibility of Video Surveillance Product Applications are Key to Development

With the continuous improvement of security awareness, more and more users have introduced corresponding video surveillance systems. However, not all users have high operational capabilities. Therefore, a simpler operation is helpful to the user's use and installation, so that users who are not very professional in their operation ability can still enjoy more substantial services.

In addition, another point of view is the user's massive sharing platform. That is, with the help of the wide area network, more users can be integrated into this platform. Under the role of this large-capacity platform, more or even an unlimited number of users can be accommodated for unified information processing. As a result, the relationship between different geographical devices has been further strengthened.

2, video surveillance and alarm system

The civilian security development model will be combined with the operator's wired and wireless network technology and video manufacturers' coding equipment, network cameras, alarm linkage devices, etc. to provide video surveillance and alarm services for high-income and high-security home users. The video has solved the problem of false alarm rate and lack of air defense. This market has a fairly mature operating mode abroad and is still in the start-up phase in China.

3, the development prospects of mobile phone monitoring

Mobile phone monitoring has been brewing for three years and the basic technical conditions have matured. It is well-equipped for operators to deploy 3G networks. In some pilot cities, there are great market prospects for the application of individual groups and corporate groups. From the perspective of the global operators' 3G development practice, the three major operators have launched fixed and mobile converged video surveillance services based on 3G networks. It can be seen that the positioning of mobile video surveillance on home and SME users will become an inevitable trend. With the continuous development of 3G network technologies and mobile terminals, the mobile video surveillance system is seamlessly compatible with IP networks in technology and provides remote real-time video processing capabilities and other network applications. It is bound to be popular in the world, causing secondary use in the field of civil surveillance. revolution.