HD applications are gradually favored by the market monitoring matrix

Video matrix has a wide range of applications in the security field. Due to the high-definition and networked trend of the security industry, the matrix is ​​divided into two categories, one is the traditional analog video matrix, and the other is the video based on digital technology. matrix. The advancement of science and technology, the promotion of smart city construction, the emergence of digital matrix, HD applications are gradually favored by the market. A large-scale construction project like “Safe City” strengthens the development of matrix networking technology, and HD application has become the development direction of the industry.

What is a video matrix? What is the classification? what's the effect?

Simply put, it is a device that switches the M input signal to the N output terminal according to the demand (this signal can be audio, video or mixed). See how much you can relate to the concept of the previous contact matrix algorithm. Moreover, the operation process is relatively simple, and can be controlled by other devices such as a remote controller or a keyboard.

According to different ways of implementing video switching, it can be mainly classified into two types, namely, an analog matrix and a digital matrix. The analog video matrix, ie video switching, is done at the analog video layer. The signal switching is mainly realized by using a single chip microcomputer or a more complicated chip to control the analog switch; the digital video matrix, that is, the video switching is completed at the digital video layer. The core of the digital matrix is ​​the processing of digital video. It is necessary to add AD conversion at the video input end, convert the analog signal into a digital signal, add DA conversion at the video output end, and convert the digital signal into an analog signal output.

For the role of the video matrix, in reality we can often see the staff sitting in front of the display by operating some buttons to monitor the environment on the spot. This kind of monitoring can be said to have been widely used in our lives. By switching the signal, any one of the inputs is displayed on the set display terminal, and a series of operations such as zooming in, zooming out, zooming in and out, and switching the lens can be performed. This can not only play a monitoring role, but also largely avoid the waste of one input terminal corresponding to one input signal. This is the convenient operation of the video matrix.

Matrix industry application index analysis

In the monitoring industry, since the signal is only imaged, transmitted (generally baseband transmission), controlled and displayed, and the image quality requirements are relatively low when displayed, as long as it can be seen clearly, it does not work for broadcasting, so the monitoring industry The requirements of the matrix are many functions (capable of PTZ control, alarm, etc.) and low indicators. There is no explicit mandatory requirement for the matrix indicators in this industry.

Radio and television and video conferencing, radio and television do not have to say much, it is definitely subject to the national standard, according to the broadcast-level standards, it is worth mentioning that in the field of video conferencing, video signals must be transmitted, recorded and broadcast, and the audience has higher requirements on image quality. Therefore, broadcast-level indicators should be selected, and monitoring products should not be used simply.

VGA signal application, because VGA signal bandwidth is wide, and there are five signals (R, G, B, H, V) transmission at the same time, so the parameters of each channel are required to be as high as possible (should meet the requirements of broadcasting and television within 6MHZ) And must be consistent, should be in accordance with the technical requirements of the broadcast class for component devices. However, since the VGA signal switching is not as widely used in radio and television, it involves a large number of users, so there is no mandatory indicator standard.

Matrix monitoring market to go HD road

Due to the increasing demand for high-definition digital signals, HD-SDI high-definition digital matrix products are not only in the broadcasting industry, but also in the currently active monitoring market. Its emergence is like injecting a strong shot into the matrix market that has entered the middle age, which has revived the hope that the traditional analog matrix builders, users and manufacturers have begun to appear in the matrix market where development space is beginning to appear.

The HD-SDI matrix is ​​completely different from the traditional analog matrix design architecture. Digital circuits pose higher challenges for signal understanding, chip usage, and line layout. The wide application of HD-SDI matrix is ​​for traditional matrices that are not well accumulated. Manufacturers, matrix size, matrix HD characters, etc. will be bottlenecks. However, as a professional matrix manufacturer such as Zhuzhou Huatong, with many years of matrix research and development experience, while leading the analog matrix market, and simultaneously developing with the market, the HD-SDI high-definition digital matrix has been developed to increase customers' choices for switching products. Sex is the inevitable development. At present, everyone has seen the potential of this technology, and this technology has received more and more praise in the field of large-scale engineering applications.

Zhuzhou Huatong Technology has a group of middle and senior technical talents specializing in embedded products, high-definition video exchange, transmission, conversion and control products, optical fiber communication products, radio and television equipment research and development, design, manufacturing and computer software development. The DSP, FPGA, and H.264 video codec algorithms have strong development strength. The company has 9 patents in the video field and 7 software copyrights. The company's own DMX series HD hybrid video matrix, HD-SDI series HD video matrix, DVI matrix, HDMI matrix, AV series large and medium audio and video switching matrix, HT-DV HD video and audio codec, HT-EX audio and video information Integrated control system, embedded high-definition video conferencing system, HT-SDI/DVI/HDMI full range of uncompressed high-definition video optical transceivers, etc. in telecommunications, gongan, security, mini-dui, education, radio and television, security monitoring, power, petroleum, etc. It has been widely used and has been well received by many users. The product was successfully applied to the “Aoyun Club” security and the “11th National Games” security project.