SecurityCamera2000: Security IP Camera Development Trend Analysis for future applications
Electronics, communications and other high-tech industry, security application industry products and technologies develop leaps and bounds in recent years, from simple monitoring of the first generation of analog products, the transition to a second-generation digital surveillance products, thus evolved out of the first third-generation network monitoring products. Online video including network cameras, network coding, etc. As a third generation of monitoring products, is at this stage of the domestic security industry applications, hot spots, which from this year's trade media, the size of the exhibition, various manufacturers propaganda is evident. This point of view from the application of network video surveillance products Analysis of a branch of the class - the development trend of network cameras
The development trend of IP camera
1, refinement of the product category
The original concept of webcam seemed to be only limited to the gun-type network camera, but as the technology matures and the user needs is becoming increasingly clear, network cameras are also derived from a variety of types, and gradually segments. Currently we can also see an integrated network of infrared cameras, the gun guard type network cameras, speedy dome network cameras, gear shift dome network camera and wireless network cameras, network cameras and other products supply network. We can see from these products to find a commonality, that is, the network camera is more convenient, more accessible. For example, infrared night-time monitoring of network cameras solve the problem, the gun guard-based network camera achieved in the harsh environment monitoring requirements, speedy camera and gear shift camera do great effect on PTZ control; meanwhile its successor, the outstanding PTZ performance can be competent in a variety of environmental applications. As for the wireless network camera is resolved in the remote or network environment is not easy to build a network monitoring terminal in one fell swoop and solve the access problem. For the network-powered network camera in the direction of a user-friendly is a big step forward. Currently supports PoE enabled network camera applications in foreign countries were also more widely forecast in the country with the manufacturers’ promotion for the practical application and improvement of the environment, this demand will be increasingly taken seriously.
2, demand for high-definition images
At the present stage, the finished product sales of network cameras can do the greatest D1, that is 704 × 576 resolution, is more than 40 million pixels. Compared to a few millions, or even 10 million pixels digital cameras for commercial and domestic customers who has a higher expected value for the clarity of the image. Network camera on the market today uses a lens, CCD sensor, the integration of network coding module body. This network camera video quality is mainly determined by the quality of the lens and the CCD which is the mainstream products on the market. There are other manufacturers make an integrated camera and network coding module to form a variety of types of network cameras. Because of its excellent performance, you can upgrade image quality of IP camera, also with good PTZ control functions, such as high-speed dome network camera, of course, the cost of this product is relatively high, a relatively high-end product positioning. Another way to enhance the video quality depends on the technological breakthrough. The current network realization of the camera mechanism is the A / D-D / A-A / D, after the two analog-digital conversion, the final formation of the network signal, if they can break through the middle of converting links, it is expected to achieve the A / D conversion of the signal directly to the network will greatly enhance the conversion efficiency, lower costs, greatly improve picture quality. The above two methods is based on a video source to improve the quality of implementation. In addition to video encoding technology is also in the network room to improve on the current market, there have been a high-resolution network coding module, can achieve a resolution of 1280 * 1024, but frame rate was also unable to do full frame. This technique depends on the development of video compression chip technology and video compression algorithm technology.
3, demand for Intelligentization
Monitoring system has started from the enterprises and institutions into the daily lives of people. It is increasingly difficult to find and retrieve a large number of video data to increasing places need to be monitoring. Especially now with the peaceful city construction in full swing, the public security system as the most direct users will have to face the control of the entire city, it is very difficult to achieve a 24-hour monitoring every move of the city's. Give a simple example, there is a museum lost one item, if there is no intelligent analysis technology, we can only read through all the video files all the possible clues. However, if the introduction of intelligent analysis technology, we can set up a "removal rules" when the designated areas, the items will automatically disappear after the alarm, early prevention of theft incidents. There are a lot of the intelligent analysis techniques can provide a similar solution, including "break the rules", "cordon Rules" and "population statistics", "face recognition" and so on. These technologies will effectively enhance the monitoring system using the effectiveness and efficiency.
Experience from the market and people’ expectation of network cameras, intelligent analysis technology and network camera technology found a focus in the same historical trajectory. Intelligence analysis technology is already a relatively mature application for foreign technology, raised and developed by the U.S. Department of Defense. It has changed the traditional monitoring of the defensive position, change from passive to active, the video data analysis, have made some useful information to police in the form of reflection to the user. Network Camera is a third-generation network video surveillance technology, the latest representatives, it is fully integrated imaging, video encoding technology, and including cloud mirror control technology, including a number of technologies, is the future focus of the development of network video. Thus in such a historical period,, the network camera would become the best carrier of intelligence analysis techniques.
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