CN201303397Y - High definition digital video server terminal - Google Patents

Abstract

The utility model discloses a high definition digital video server terminal, which comprises an audio processing unit, a video processing unit and a data processing and communicating module, wherein the video processing unit comprises a high definition video input interface processing module, a high definition video compression module and a video data memory module. By adopting the high definition DVS terminal, the utility model can support the input of high definition video signals and the high definition storage video data, thereby greatly improving the quality of monitoring pictures, reducing the manual time and intensity due to the increase of intelligent monitoring operation and increasing the monitoring reliability at the same time.

Description

A high-definition digital video server terminal

technical field

The utility model relates to a DVS (Digital Video Server) terminal capable of inputting high-definition video signals and storing high-definition video data, and using a distributed system for intelligent analysis, in particular to multimedia communication technology in the field of monitoring and communication.

Background technique

At present, DVS (Digital Video Server) terminals seen on the market can only process composite video signals of PAL/NTSC standard, that is, convert PAL/NTSC standard data into MPEG-2, MPEG-4, H .264 compressed data, stored in the hard disk, the highest resolution of the compressed video data is D1. When playing the stored video data, it can only provide video signal output with a lower resolution (720*576). For places that require high resolution, such as the analysis of license plates, the resolution of D1 is far from enough. cannot be well identified. With the continuous development of new technologies and processes, high-definition imaging equipment and high-definition display equipment have appeared and will dominate the future imaging and display equipment markets. For high-definition camera equipment, the inability of the DVS terminal to process the output video signal makes the DVS terminal unable to work normally. For a high-definition display device with a resolution of 1080 lines, the resolution of the video signal output by playing the video data stored in the DVS terminal is obviously insufficient, and cannot reflect the picture effect of the high-definition display device. Yes, it is also difficult to observe the image with the human eye to find the desired image.

FIG. 1 is a schematic block diagram of a typical DVS terminal. It can be seen from the figure that the current DVS terminal mainly uses the analog composite video interface 101 to complete image input. Through the analog video encoding module 102, it is converted into standard parallel digital video data, and then through the video compression module 103, it is compressed into MPEG-2, MPEG-4, the standard code stream of H.264, and the data processing and communication module 200 compresses the video from the video The video compression data is taken out from the module 103, and accessed to the video data access module 104 (such as a hard disk). When you need to view the surveillance video, you need to decompress the data on the hard disk and display it on the screen. The audio processing unit includes: an audio input module 301 , an audio compression module 302 , an audio decompression module 303 , and an audio output module 304 . This DVS terminal mainly has the following problems:

1. The image resolution is low, and it cannot support the input of high-definition video images with image resolutions such as 1280*720 and 1920*1080. It does not match the future mainstream high-definition camera equipment and display equipment. Can't see the details of the picture clearly.

2. The video input is all interlaced scanning video signals, the image refresh rate is low, and the captured pictures are incoherent.

3. The analog composite video signal is easily interfered by other electrical signals, causing interference phenomena such as ripples and snowflakes on the input image, resulting in poor monitoring quality.

4. The stored images have not undergone any analysis, and it is difficult to find useful things in the massive data.

At present, high-definition camera and display technologies are developing very rapidly, and their applications are becoming more and more extensive. Distributed high-definition DVS terminals can solve the above three problems by processing and intelligently analyzing high-definition video signals as video input, but there is no disclosure of high-definition DVS terminal implementation schemes in the prior art.

Utility model content

The technical problem solved by the utility model is to propose a high-definition DVS terminal by combining the high-definition video processing technology with the DVS terminal technology, which can improve the resolution of input monitoring images that can be processed, and improve the anti-interference ability of monitoring equipment. Further combined with intelligent analysis, it realizes intelligent analysis of video data while monitoring, which can conveniently extract useful information from massive video data, thereby improving the quality of video surveillance.

The technical scheme that the utility model adopts is:

A high-definition DVS terminal includes an audio processing unit, a video processing unit, and a data processing and communication module, and the video processing unit includes:

A high-definition video input interface processing module is used to receive high-definition video input signals and convert the signals into digital high-definition video signals;

A high-definition video compression module, configured to perform video compression processing on the digital high-definition video signal forwarded by the high-definition video input interface processing module and send it to the data processing and communication module;

The video data storage module is connected with the data processing and communication module and is used for storing compressed video data.

Preferably, the high-definition video input interface processing module includes:

An analog high-definition video input interface for receiving an analog high-definition video input signal and forwarding it to the high-definition video decoder;

A high-definition video decoder for converting an analog high-definition video signal into a digital high-definition video signal.

Preferably, the analog high-definition video input interface is a component component video YPbPr interface.

Preferably, the analog high-definition video input interface is a component video RGB interface.

Preferably, the high-definition video input interface processing module is a digital high-definition video input interface for receiving digital high-definition video input signals and forwarding them to the high-definition video compression module.

Preferably, the high-definition video compression module is a media processor capable of performing video signal compression operations.

Preferably, the terminal further includes: an intelligent processing module, configured to receive the digital high-definition video signal forwarded by the high-definition video input interface processing module, analyze and process the video signal, and forward the processing result to the high-definition video signal. A definition video compression module or the data processing and communication module.

Preferably, the analysis and processing results of the intelligent processing module include: classification and storage control information for the compressed data and driving control information for the camera.

Adopting the high-definition DVS terminal of the utility model can support high-definition video signal input and store high-definition video data, thereby greatly improving the quality of the monitoring picture, and at the same time, the artificial time can be reduced due to the addition of intelligent monitoring and strength, increasing the reliability of monitoring.

Description of drawings

FIG. 1 is a schematic block diagram of an existing DVS terminal;

Fig. 2 is a schematic block diagram of a high-definition DVS terminal of a preferred embodiment of the present invention;

Fig. 3 is a schematic block diagram of the video processing unit of the high-definition DVS terminal embodiment of the second preferred embodiment of the present invention.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and through specific embodiments.

Due to the limited capability of the current video coding chip, using the existing chip, after the video compression is completed, no other analysis can be done. The key of the utility model is to use the existing high-definition video interface technology and high-definition video coding technology And the application of high-definition video compression technology and intelligent analysis technology on DVS terminals improves the monitoring quality of DVS terminals.

The DVS terminal is composed of an audio processing unit, a video processing unit, and a data processing and communication module. The video processing unit includes: a high-definition video input interface processing module, which is used to receive high-definition video input signals and convert the signals into digital high-definition High-definition video signal; high-definition video compression module 103, which is used to send the digital high-definition video signal forwarded by the high-definition video input interface processing module to the data processing and communication module 200 after video compression processing; The video data storage module 104 is connected to the data processing and communication module 200 and used for storing compressed video data.

Among them, the high-definition video input interface processing module supports two implementation methods: analog high-definition video signal input and digital high-definition video signal input; the former is realized through analog high-definition video input interface and high-definition video decoder , the latter only needs to be realized through the digital high-definition video input interface.

Compared with existing DVS terminals, the specific technical realization points of the utility model are as follows:

1. The composite video input interface 101 of the existing DVS terminal is changed to an analog high-definition video input interface 111, which includes but is not limited to component component video YPbPr interface and component video RGB interface;

2. The composite video decoder 102 of the existing DVS terminal is changed into a high-definition video decoder 112, and the high-definition video decoder 112 converts an analog high-definition video signal into a digital high-definition video signal;

3. The video compression module 103 of the existing DVS terminal is changed to a high-definition video compression module 113 capable of supporting high-definition video compression, and the processing capability of the module 113 is much higher than that of the module 103.

4. In addition, in order to allow high-definition DVS terminals to directly support digital high-definition video signals, a digital high-definition video input interface 121 is added

5, increase the intelligent processing module 300, the data sent to the video compression module 113 is also sent to the intelligent processing module 300, and the intelligent processing module 300 analyzes the video data sent in, and then notifies the data processing and communication module 200 according to the analysis result , to control the movement of the camera or process the compressed data. The analysis and processing results of the intelligent processing module 300 include: classification and storage control information for the compressed data and driving control information for the camera. For example: different images can be notified to the data processing and communication module for classification and storage, or the vehicle that enters the fixed area can be alarmed according to the analysis, and the camera can be ordered to rotate and track the fixed vehicle according to the analyzed license plate. The intelligent processing module 300, the video compression module 113, and the data processing and communication module 200 communicate with each other.

The combination of technical points 1, 2, and 3 enables DVS terminals to realize the input function of analog high-definition video signals, and adding the fourth technical point enables DVS terminals to realize the input function of digital high-definition video signals. The fifth technical point enables DVS to have the function of video analysis, and can process the input data according to the analysis results. A high-definition DVS terminal may not have items 1 and 2, and only support the input function of digital high-definition video signals, or may not have item 4, and only support the input function of analog high-definition video signals; it may also not have item 5, It only stores the input video data, but does not analyze it; it can also be available for all projects, and supports analog high-definition video signal input and digital high-definition video signal input at the same time, and performs video analysis.

The high-definition DVS terminal of the utility model can be directly used in conjunction with high-definition camera equipment and high-definition display equipment. Its embodiment is shown in Figure 3. Since the audio processing unit and data processing and communication module 200 of the high-definition DVS terminal can adopt the modules of the existing DVS terminal, it is not described, and the video processing unit part is mainly explained:

1. The high-definition component component video signal YPbPr is sent to ADV7401 through the YPbPr input interface. ADV7401 is a high-definition video decoder that converts analog high-definition video signals into digital high-definition video signals, and then sends them to media processing Device WW108, which performs video compression operations and generates video compression streams in various formats such as H.264, MPEG-4, etc. WW108 is a video codec chip that supports resolutions up to 1080P 60.

2. The high-definition digital video signal is also sent to DM647 for intelligent processing. DM647 can analyze the image, such as analyzing the difference between faces and license plates, and can drive the camera to track specific individuals or vehicles. and analyze the data as required.

3. Digital high-definition video signal HDMI input to AD9880, AD9880 is an HDMI receiver, converts serial digital high-definition video signal into parallel digital high-definition video signal, and then sends it to media processor WW108 for video compression operation.

The above is the video part of a high-definition DVS terminal, plus various audio modules and communication modules, it constitutes a complete high-definition DVS terminal.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For a person of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or substitutions can also be made, which should be regarded as belonging to the protection scope of the utility model.

Claims (7)

1. A high-definition digital video server terminal, comprising: audio processing unit, video processing unit and data processing and communication module, it is characterized in that, described video processing unit comprises: A high-definition video input interface processing module is used to receive high-definition video input signals and convert the signals into digital high-definition video signals; A high-definition video compression module, configured to perform video compression processing on the digital high-definition video signal forwarded by the high-definition video input interface processing module and send it to the data processing and communication module; The video data storage module is connected with the data processing and communication module and is used for storing compressed video data. 2. the high-definition digital video server terminal according to claim 1, is characterized in that, described high-definition video input interface processing module comprises: An analog high-definition video input interface for receiving an analog high-definition video input signal and forwarding it to the high-definition video decoder; A high-definition video decoder for converting an analog high-definition video signal into a digital high-definition video signal. 3. The high-definition digital video server terminal according to claim 2, wherein the analog high-definition video input interface is a component component video YPbPr interface. 4. The high-definition digital video server terminal according to claim 2, wherein the analog high-definition video input interface is a component video RGB interface. 5. The high-definition digital video server terminal according to claim 1, wherein the high-definition video input interface processing module is a digital high-definition video input interface for receiving digital high-definition video input signals , and forwarded to the high-definition video compression module. 6. The high-definition digital video server terminal according to claim 1, wherein the high-definition video compression module is a media processor capable of performing video signal compression operations. 7. The high-definition digital video server terminal according to any one of claims 1-6, characterized in that the terminal further comprises: an intelligent processing module.

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