February 22, 2025

Million HD monitoring common five problems and solutions

Compared with the traditional video surveillance, the HD surveillance system has the biggest advantage in comparison with traditional video surveillance. The combination of monitoring and “networking” seems to have become a Transformer. It can immediately become a Transformer and can do anything in the surveillance industry. solved. However, through more than one year of marketing, as well as the application of projects in various fields, the following types of problems will inevitably be encountered:

1, high-definition transmission aspects <br> <br> common definition images will generally choose 720P or 1080P solution, if you want to achieve the ideal image effect, you need to 4M and 8M of network bandwidth, if a system has to be a few of them One hundred points, the data flow of the entire network will be quite large, and the video stream is a real-time data stream, which will continue to cause constant pressure on the network-related switching equipment. This requires adequate homework in network planning.

2, HD Storage <br> <br> a question referred to the huge problem of data streams, or if the data is aggregated into the center of each node is stored on a central inlet pressure bandwidth and storage capacity is a big challenge.

3, high-definition display <br> <br> many aspects of HD manufacturers just focus on the front of the camera pixels, while ignoring or can not provide solutions to high-definition wall at the control center, only around a PC The screen to watch the so-called high-definition images, can not be high-definition images independently displayed on the big screen.

4, the management of high-definition HD <br> <br> many manufacturers still do along the lines of traditional analog camera high-definition video camera, bought off the shelf hardware solutions, third-party MPEG4 standard algorithm, but provides a network interface, simple The digitalization is performed. As for how the rear platform manages the hardware and data flow of the camera, it is impossible to implement the underlying core algorithms and technologies.

5, high-definition imaging <br> <br> night in a well-lit during the day, high-definition is very easy to do, once the application in low light or at night need to monitor the time, high-definition has become a powerless . Since most high-definition cameras use CMOS sensors, their sensitivity to light is low. Even sensors with megapixel CCDs are much less sensitive than ordinary low-light-level CCDs. It was dark at night, and it was precisely at night that we monitored most of the time that we had to guard against. This would make the high-definition video HD system a fixture.

Behind our passion for high-definition products, we should be more calm to analyze the above five actual problems, how to solve each problem, which is rarely considered by many manufacturers, their concerns are often limited to only one The product itself, one million, two million, three million, five million ..., think that as long as the pixel is high, it is high-definition, and it is a high-end system solution. The solutions provided are also theoretically feasible and cannot be truly implemented in actual projects. Some even have a 1.3-megapixel front-end, which is processed by software and raised to 3 million or even 4 million pixels. This is unclear to ordinary users. For example, we will enlarge the photos taken by digital cameras. To 200%, your eyes look very clear.

After continuous practice and exploration in the project, Jing Yang proposed an effective solution to the above five problems, and achieved satisfactory results for the majority of users in the application.

Since the fiber optic cable transmission aspects <br> <br> continue to reduce costs, local area network can add high-performance fiber-optic high-speed network switches to compose, Gigabit to the desktop is very easy to do. With the popularity of broadband networks, especially the "three-in-one" that was just launched this year, the rate of entering homes has reached several tens of megabytes to one hundred megabytes. The ultimate goal for Guangjin Copper Retreat is to bring us low-cost high-speed Internet. For long-distance high-definition video transmission has not taken too long.

<br> <br> storage problems can only do on IPSAN storage media and invested heavily, IPSAN best embedded architecture, patch a lot less cards, high stability, but the drawback is it poor compatibility, two Sub-development is not very flexible. Most of the NVR products on the market are based on the X86 architecture, that is, servers plus array cards, application software, two-in-one server and disk array, and better compatibility. If you use IPSAN, you need to use enterprise-class hard disks for storage media, so that you can take advantage of IPSAN's speed and security in data storage. For some small and medium-sized systems, if the storage time does not require too long, and the data security requirements are not too high, it is entirely possible to use the mainstream servers in the market to complete the storage functions.

Show respect <br> <br> most of the solutions are on the wall by the decode PC graphics card, for a single large screen can use this scheme works well, and low cost. However, if a large number of large-screen video walls are needed, high-definition decoding boxes are required to efficiently restore the high-definition graphics transmitted from the front-end and connect to the large-screen high-definition input interface to display the high-definition picture perfectly on the screen.

Management <br> <br> choose as front-end with a rich hardware interface device, such as an alarm, SD card, intercom, audio, 485, USB, etc., doing the project scheme according to the requirements of Party, flexible Combinations eliminate the need for additional customization features. The software must have multiple access methods, such as WEB, client, and large platform, etc. It can provide SDK development, and it can be docked with third-party software very flexibly. Functional modules should be as complete as possible, such as alarms, streaming media, storage services, etc., can be used directly in the project.

Night surveillance <br> <br> make many contractors or systems integrators most easily overlooked problem, manufacturers often only shows how during the day HD how, basically does not mention the case of no light at night how to solve. Some manufacturers are only referring to the practice of analog infrared all-in-one, simply adding some infrared emission tubes as a solution to high-resolution night vision surveillance. After most of the actual tests we have done, the results are not satisfactory. Our Blue Video Intelligent Technology Co., Ltd. has accumulated rich experience in night vision monitoring and provides different solutions according to different field environments.

The problem of night vision surveillance, especially in high-definition night vision surveillance, affects the effects of images in many ways. Most high-definition products use CMOS sensors. The sensitivity to IR is much lower than that of CCDs. This requires adjustment of the on-board DSP program. When the light is turned to black and white, the CMOS data collected is optimized. It is possible to maximize the use of data. For the light source problem, we conducted comparative tests in our actual project and found that the traditional LED has relatively low power. If it is necessary to provide light sources for high-definition equipment, it needs to add a lot of infrared light, which is of poor aesthetics, especially indoors, and it cannot be installed as much. Big head equipment.

However, for infrared lamps using laser technology, its high power, small size, and strong concealment just meet the requirements of high-definition surveillance night vision. After our actual testing and use in projects, even without special optimization High-definition cameras, with the aid of laser infrared lights, can also provide perfect image effects.

For the first five issues, system integrators can solve the problem of transmission and storage. High-cost input is required for display and management. HD manufacturers need to spend some energy to improve the underlying software and hardware. The effect of using laser infrared lamps is the easiest to realize, investment is relatively small, and it is also the solution that can most easily improve user satisfaction.

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