The HD network monitoring FAQs and response options
Compared to SD video surveillance, high-definition network surveillance advantages are clear, but more than two years of marketing, will inevitably encounter the following types of issues:
1, the transmission
HD IP Camera will generally choose 720P or 1080P solution, if you want to achieve the desired image, you need to 8M of network bandwidth, if a system which have hundreds of points, and that the entire network data stream will be considerable and video streams real-time data streams, will continue to cause a steady pressure to the network switching equipment, which requires network planning to do plenty of homework.
2, storage
On a question referred to the problem of huge data stream, data aggregation to the center of each node is stored, the pressure on the entrance of the center bandwidth and storage capacity is a big challenge.
3, shows the aspect
Numerous high-quality manufacturers only focus on the front of the camera pixels, without the research and development of high-definition video decoder, only around a PC screen to watch high-definition image, can not be independent HD images on the big screen on the display.
4, the management
HD manufacturers or done in accordance with the ideas of the traditional analog cameras HD IP Camera, bought off-the-shelf hardware solutions provided by third parties MPEG4 standard algorithm, only provides a network interface, simple digitized As for the back platform how to IP Camera hardware and data flow management, not the bottom of the core algorithms and technology, simply can not be achieved.
5, the night
HD lit during the day, is a very easy thing, Once the application in low light or night surveillance is required when HD became a hero with no useless. Since most of the high-definition IP Camera CMOS sensor, low light sensitivity, if not with the infrared light, the night is dark, and we monitor the most to prevent precisely the time period is at night, so it will make the high expectations of high-definition video systems has become a decoration.
Fanaticism behind in our HD products, it should be more sober analysis of the actual problem, how to solve every problem, which is many small manufacturers to consider their concerns are often confined to a certain product itself pixels high, that is, high-definition, high-end system solutions. Solutions only feasible theory, you can not really go in the actual project implementation. Some even only has a 1.3-megapixel front-end processing software, shocked to increase to 300 million or 400 million pixels.
In the project continue to practice and explore Science and Technology Co., Ltd. of Shenzhen City Granville as the dot-com for the five problems and put forward effective solutions in the application has been made so that the majority of users satisfied with the results.
Transmission
Continue to reduce the cost of fiber optic cable, local area network can be composed of a high-speed network using optical fiber plus a high-performance switch, Gigabit to the desktop is very easy to do. With the popularity of broadband networks, especially the "triple play" just launched this year, the rate of households have reached tens of megabytes to hundreds of megabytes light into the copper ultimately brought us cheap high-speed Internet. For remote high-definition video transmission that do not require too long a time.
Storage problems
Only do a large amount of money invested in IPSAN and storage media IPSAN the best use of embedded architecture, the patch board a lot less, high stability, but the drawback is the poor compatibility, secondary development is not very flexible. NVR products on the market are mostly based on X86 architecture, server plus array card, and put on the application software, server and disk array combo, better compatibility. If way of IPSAN, storage media you need enterprise-class hard drive, so as to to play a IPSAN the advantage of the speed of data storage and security. If you save time does not require too long for some small and medium-sized systems, data security requirements are not too high, can use the mainstream server market to complete the function of the storage.
Display of
HD input interface for high-definition screen TV wall, we have developed a high-definition decoder, the front-end transmission over high-definition graphics effectively restore connection to the big screen, high-definition picture perfect to show on the screen above.
Management
Try to select with the the rich hardware interface front-end equipment, such as alarm, SD card, intercom, audio, 485, can do projects and programs based on the requirements of Party, flexible combination, and no longer need a separate additional customization features. Software have a variety of access methods, such as the WEB client, a large platform can provide the SDK and third-party software can be very flexible docking. Function modules to be as complete as possible, such as alarm, streaming media, storage services, etc., can be directly used in the project.
Night side
We have accumulated a wealth of experience in night vision surveillance and provide different solutions, depending on the environment of the scene. Such as infrared light program, IR Cut technology, low-light chips.
For the first 5 aspects, transmission and storage, system integrators through cost inputs can be solved; display and manage HD manufacturers need to spend some effort to improve the underlying software and hardware; improve night vision effect, the input is relatively small, but also allows the easiest solution to enhance user satisfaction.
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