HD monitor pays attention to details to enhance the quality

The HD market has gone through 2 years. High-definition technology, bandwidth issues, and storage issues have been explored and continuously improved. They are moving forward step by step, and have been widely used in many segments. With the understanding of high-definition users in the domestic market, high-definition video is moving toward a booming trend. Higher-definition high-definition cameras have been introduced to the market. From standard definition to high-definition, the surveillance market will pay more attention to detail technology upgrades to meet the future high-speed development path.

HD monitoring market demand: more clear, more people why the pursuit of high-definition never tired? Every monitoring system, people hope to be able to play the same function as the human eye and brain, not only can clearly see the scene of the vision, but also to identify every phenomenon and action in the scene, so want to "see more The need for "clear" and "see more" has become the pursuit of every security person.

Seeing more clearly: The development from SD to HD is the best proof of people's "see more clearly". From the Beijing Olympic Games, the Shanghai World Expo to the Guangzhou Asian Games, and the Shenzhen Universiade, the world-class events flourished and the application of high-definition surveillance was gradually deepened and expanded. More and more high-resolution cameras were researched and developed, and the popularity of high-definition applications was inevitable.

See more: “See more clearly” gives the possibility of “see more”, which can be analyzed from two aspects. One is to see a larger scope, and you can clearly see the up and down, left and right 180° space like the human eye. All the details and things in it, one is to see more detailed details, and can clearly capture more information in the screen, for "I" use.

Strengthen the technical details and meet the requirements of higher picture quality The current domestic and international products of network cameras are mainly 1960*1080P products. The market of domestic high-definition network monitoring systems is in a stage of rapid development. In the field of security monitoring, people are not satisfied with seeing, but also want to see clearly, high-definition network cameras to meet this demand at the same time also rapid development, technology has also been greatly improved than the initial. From the simplest and most demanding high resolution of the past to the development of comprehensive high performance, not only on the premise of guaranteeing the most basic 1080P HD, most manufacturers are equipped with wide dynamics, intelligent analysis, and automatic day and night conversion. Analog video output, etc.

Some manufacturers also have the functions of auto focus, video analysis and calculation, MINIFDMI, and USB output of previous high-end machines. At the same time, manufacturers pay more attention to the smoothness of the stream, and the processing of the delay has also been greatly improved over the past. We are pleased that the products of domestic big brand manufacturers are getting more and more outstanding. They are comparable to the products of international big brands in the past. In addition to color reproduction, they are still somewhat inferior, and other technical indicators have caught up with the national mainstream brands. The performance of the combination of domestic engineering features is convenient, and some unique features are even more excellent.

1, the color reproduction effect still needs to strengthen the high-definition network camera, most uses the 2 million picture element above 1080P high definition network camera, in the clarity on the majority of factory's products all may achieve above 1000 lines, this is rarely in the past Seen, in the network delay has also overcome the previous years of high-definition delay larger issues, basically all in about 200 milliseconds, very rare, the code stream control is also good, just a few manufacturers of product code The smoothness of the flow is poor, but the performance of the current mainstream manufacturers has been very prominent, but there are problems such as poor color reproduction and partial color shift. The majority of manufacturers use CMOS technology as the sensor chip. The problem of chromatic aberration is more difficult to overcome. There is also the problem that most manufacturers ignore the adjustment settings of the lens and back focus on the edge definition.

In terms of wide dynamics and intelligent video analysis, many manufacturers have designed such functions, but the effect is not very prominent. For example, in the day-night conversion function, the products of Optitech's products have further room for improvement in fine setting and R&D, etc. Is an essential function of the high-definition machine, but the effect of the manufacturers vary, the difference is larger, and some manufacturers have little effect, and even some manufacturers do not have to set such an essential function. In day and night conversion function, many manufacturers' settings are rough, there are no menus such as threshold value and conversion time setting, some individual products begin to convert around 17LUX, and infrared filters are constantly switched under different LUX values. . Exposed the details of the domestic product R & D is not enough, and the lack of communication with the actual construction technology, once again called for manufacturers to tap high-level product managers to complete the planning before the R & D and close to the engineering requirements of the product. In terms of product compatibility, many manufacturers have set up the ONVIF protocol, but it is often difficult to achieve compatibility and compatibility with NVR. This is also caused by the lack of consensus among product manufacturers.

2. The functional details need to be taken into account. Many high-definition cameras of mainstream brands in China need to improve and improve. The main thing is to make great efforts to improve the fineness of the wide dynamic settings. It is not only such a function, but it must be set differently according to the actual situation. Wide dynamic effect to achieve full range of adaptation, so that it is easy to use. There are also similar wide dynamic conditions in the day and night conversion function. Day and night conversion functions, in combination with the IR filter switching function, multi-selection of the threshold setting, selection of conversion time and many other menu items, can be achieved The application of good results, and manufacturers often just designed an automatic day and night conversion function, in short, the details feel successful, the use of detailed product development and appropriate engineering areas is the key to success.

Most of the products can be browsed under the IE browser, but there are also very few product manufacturers that need to browse and operate under the client software. This is extremely inconvenient and is currently a backward technology.

High-definition security monitoring future development road With the continuous improvement of China's scientific and technological level and the backdrop of the digital age, the gap between China and the developed countries in science and technology will gradually narrow. In the era of security monitoring and high-definition, Chinese companies will occupy an important seat in the global security market. The national brand high-definition surveillance products independently developed by Hikvision, Dahua, Zhongwei Electronics and other ethnic enterprises will break the current occupation of Japan, South Korea, and Europe and the United States. The major share of the market will shine in the future security monitoring market.

The performance of the market also confirms that Digital Million HD will lead the future of video surveillance products. According to the survey, the shipments of HD surveillance cameras reached 900,000 units in the first half of 2011. It is expected that the HD camera shipments for the whole year of 2011 will maintain a 100% growth rate, and it is expected to reach 200 units by the end of the year, and the increase will double. . Most monitoring equipment manufacturers are also optimistic that in 2015, megapixel digital high-definition cameras will surpass the analog cameras and become the overlord in security surveillance.

The huge market of high-definition monitoring has attracted many companies to invest in it. A wide range of high-definition products have mushroomed into the market, and the market has become more and more intense. Statistics show that: China has more than 600 small and medium-sized enterprises capable of producing various kinds of cameras, of which more than 50 are foreign-funded (including Hong Kong, Macao, and Taiwan) companies, and annually produce more than 15 million surveillance cameras, with an output value of more than 12 billion yuan. The wealth has accounted for about 8% of the national security GDP.

The fierce market competition is an inseparable gap for some companies that do not have R&D capabilities and follow HD, because they cannot face the high-definition access thresholds that are different from the analog surveillance era, they cannot master the core technologies, and they cannot complete product updates. Replacement and continuous service. However, for those powerful companies that are at the forefront of high-definition R&D, they have mastered the core technologies, have strong R&D production capabilities and technical service capabilities, and are able to respond to the needs of technological upgrades at any time, becoming brand enterprises in the high-definition era.

Fortunately, after experiencing a wave of digitization and the birth of a number of well-known brands and listed companies such as Haikang, Dahua, and Zhongwei, the Chinese security market has ushered in a wave of high-definition, which has brought to the Chinese security companies. Another opportunity for development. Among them, the emergence of Zhongwei VAR3S on behalf of China's security companies can already be highly customized according to market demand development, marking the Chinese security companies under the impetus of huge market demand, relying on years of technology accumulation, has basically got rid of foreign technology Dependence has become the driving force behind the progress of the global security industry.

Extension: What is definition of HD in HD? Most manufacturers use the concept of “HDTV” in the field of digital television to call HD, including high-definition cameras, video capture, transmission, display, and recording devices that meet the 720P, 1080P, and 1080I formats. High-definition encoders, high-definition monitors, NVRs, high-definition decoders and other devices also include matching megapixel lenses.