Digitization is the trend video matrix "and look at the same"

1. Cost advantages: The video matrix and DVR are combined into a digital video matrix solution. Only one device can simultaneously realize the functions of the video matrix and DVR, which greatly saves costs. The control of the matrix and the control of the DVR are integrated together for convenience and flexibility. If the analog matrix is ​​used, at least one matrix host and one DVR host are needed. The installation and debugging are complicated. In addition to the cost of the DVR, a high cost is required for the analog matrix. In addition, for the control of the analog matrix, it may be necessary to add other devices, such as display devices, matrix controllers, matrix control keyboards, etc. Some complex functions even require a dedicated PC to configure. The analog matrix solution also requires video signal distribution and multiplexing equipment to implement the DVR recording function. With the digital matrix, only a simple matrix module can be added on the basis of the DVR. The cost is relatively low, and the number is The integration of the matrix and video system is high and the stability is enhanced, which also reduces the cost of future maintenance.

2. Functional advantages: Flexible configuration, powerful function, easy to use In the analog matrix DVR scheme, the matrix and DVR are in their own right and need to be controlled separately. The operation mode provided by the analog matrix is ​​complex, the ease of operation is poor, and the function is simple. Implementing more complex functions requires a cumbersome operation process; using a digital matrix, you can control the switching matrix and DVR simultaneously through a control platform. The operating interface can be freely developed by the secondary developer under Windows or Linux. Customizing applications and customizing various functions according to the needs of their own customers, the system built depends entirely on the developer's own software.

In the digital matrix, based on the digital processing of the image: You can perform a lot of processing on the image while switching the video, such as superimposed characters, superimposed images, and area masking. These are functions that are currently common to DVRs, but Analog matrix, because its core is based on the processing of analog signals, in the face of these functions, it seems powerless. Here take the character superposition function as an example. The simulation matrix often needs an external character superposition chip to realize, usually can only realize the superimposition of ASCII code or English character, and the simulation that can realize Chinese character superposition can be said to be very few, let alone simultaneously Support Simplified, Traditional, and even Japanese. As for image overlay and other functions, it is basically impossible to achieve in the analog signal layer.

The digital matrix can provide a richer image display mode. The traditional analog matrix can only perform the simplest 1:1 image output; on the basis of this, the digital matrix can also achieve N→1 (multiple images can be displayed in one window by scaling the image) and 1 → N (an input image is displayed at multiple output terminals simultaneously) is displayed even with advanced features such as picture-in-picture.

Finally, system stability, digital matrix DVR solution, high system integration, low power consumption, and high stability; and analog matrix solution, due to the need for multiple devices, the probability of problems is greatly increased.

3. Potential: The development of a huge simulation matrix control system is currently very mature. The structure and function of its products have not undergone major changes in recent years or even more than ten years. The potential for excavation has been very limited.

The digital matrix is ​​completely different. At present, the development of digital technology can be described with rapid changes and broad prospects. First of all, with the improvement of hardware performance, in the aspect of high-speed buses: the 66M PCI bus has been very mature and popular, such as PCI-E or other high-speed serial buses are also constantly put forward; in the chip technology: there have been 600M, 720M even 1GHz high-performance DSP can be said that thanks to the continuous improvement of the performance of the hardware platform, the function of the digital matrix will inevitably continue to improve, and continue to the high-end development. At the same time, the progress of software can not be ignored, and new image compression and processing algorithms have been proposed. The efficiency of image compression has been continuously improved, and more complex and smart image processing algorithms have been applied, such as intelligent mobile detection. Intelligent recognition technology (face recognition, fingerprint recognition, license plate recognition, signature recognition) has already had relatively mature applications. These higher-level image processing technologies can be applied to our digital video systems using current hardware platforms. in. Therefore, with the rapid increase of software and hardware level, we have reason to believe that the development space of the digital matrix will be very wide, and it will inevitably exceed the analog matrix in terms of both performance and functionality.

4. The secondary development is simple and convenient. Unlike the previous H and D cards, which use the respective SDKs, the new SDK will support H, HC and MD cards at the same time. The encoding, decoding, and matrix control can be realized at the same time by using only one SDK. The encoding and decoding sections in the new SDK are compatible with the encoding and decoding sections in the original SDK. The user only needs to increase the matrix control section. Reduces the user's secondary development complexity. At the same time: H-cards, HC-cards, and MD-cards can be intermixed to facilitate the maintenance and expansion of existing projects.