CN104506831A - Embedded block-mode video storage, transmission and displaying system - Google Patents
Embedded block-mode video storage, transmission and displaying system Download PDFInfo
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- CN104506831A CN104506831A CN201510020549.1A CN201510020549A CN104506831A CN 104506831 A CN104506831 A CN 104506831A CN 201510020549 A CN201510020549 A CN 201510020549A CN 104506831 A CN104506831 A CN 104506831A
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Abstract
The invention relates to an embedded block-mode video storage, transmission and displaying system. The technical problem that an existing video monitoring system is complicated in structure, low in reading speed, small in storage space and high in cost and cannot minimize resources is solved. The embedded block-mode video storage, transmission and displaying system comprises an image pickup module and an embedded streaming media processing module, wherein the embedded streaming media processing module comprises a streaming media processing module and an NDAS storage module. The streaming media processing module comprises a streaming media transmission unit and an NDAS processing unit, wherein the streaming media transmission unit is connected with the image pickup module through an AVB transmission line, and the NDAS processing unit is connected with the streaming media transmission unit. The NDAS storage module is connected with the NDAS processing unit. The embedded block-mode video storage, transmission and displaying system is widely used in the technical field of video monitoring.
Description
Technical field
The present invention relates to a kind of video monitoring apparatus, is a kind of embedded block mode video storage transfer display system specifically.
Background technology
Individual and public safety protection more and more important, under this background, the exploitation of intelligent video security technology and demand more and more increase.Universal along with ultrahigh speed communication network, the demand of Web Video Service is also increasing, therefore by the high-pixel camera machine of Internet Transmission and the occupation rate of market of basic technology more and more higher.A lot of big city, for the ease of security administration, parking management etc., has started installing CCTV system in position.
Application on the other hand for streaming media server is also more and more wider, and streaming media service is the service being transmitted to multiple user in real time, can the memory space of minimum user.Streaming media service is compared and is write data more use readings data, so need to improve reading speed, and needs jumbo memory space, therefore needs to develop and can improve reading speed and the storage system guaranteeing Large Copacity space.
But technology uses the hardware of PC series to carry out Streaming Media (streaming) record (recording), display (display) function at present, existence cannot minimized resource, technical pattern is complicated, the technical problem that cost is high.
Summary of the invention
The present invention be exactly in order to solve existing video monitoring system complex structure, reading speed is slow, memory space is little, cannot minimized resource, technical problem that cost is high, provide that a kind of structure is simple, reading speed block, memory space are large, can minimized resource, embedded block mode video storage transfer display system that cost is low.
Technical scheme of the present invention is, provide a kind of embedded block mode video storage transfer display system, comprise photographing module and embedded streaming media processing module, embedded streaming media processing module comprises Streaming Media processing module and NDAS memory module;
Streaming Media processing module comprises streaming media unit and NDAS processing unit, and streaming media unit is connected by AVB transmission line with photographing module, and NDAS processing unit is connected with streaming media unit; NDAS memory module is connected with NDAS processing unit.
Preferably, NDAS memory module comprises NDAS plate and hard disk groups, NDAS plate comprises NDAS agreement supporter, hard disk I/O formats supporter, hard disk controlling unit and MAC Control Element, NDAS agreement supporter, hard disk I/O format supporter, hard disk controlling unit is connected with NDAS processing unit respectively with MAC Control Element, hard disk groups is connected with MAC Control Element, and hard disk controlling unit is connected with MAC Control Element.
Preferably, NDAS plate is also provided with network bandwidth supporter, and network bandwidth supporter is connected with NDAS processing unit.
Preferably, Streaming Media processing module is also provided with compressed video decoder unit, and compressed video decoder unit is connected with NDAS processing unit, and compressed video decoder unit is connected with display module.
Preferably, photographing module is provided with two or more video camera, and hard disk groups is provided with two or more hard disk.
The invention has the beneficial effects as follows, structure is simple, reading speed block, the demand in massive store space can be met, can minimized resource, cost low.The video/audio of multiple video camera shooting is transmitted by AVB (Audio Video Bridge) mode, and the intact transmission of video data of compression and NDAS (Network Direct Attach Storage) mode are stored on multiple hard disk.
Further aspect of the present invention and aspect, by the description of the embodiment below with reference to accompanying drawing, clearly recorded.
Accompanying drawing explanation
Fig. 1 is the theory diagram of embedded block mode video storage transfer display system of the present invention;
Fig. 2 is the theory diagram of Streaming Media processing module;
Fig. 3 is the theory diagram of NDAS memory module.
Symbol description in figure:
100. embedded block mode video storage transfer display systems; 110. photographing module; 120. embedded streaming media processing modules; 130. display module; 111,112 ~ 11N is the 1st video camera, the 2nd video camera ~ the N video camera; 120a. Streaming Media processing module; 120b.NDAS memory module; 121. streaming media unit; 122.NDAS processing unit; 123. compressed video decoder unit; 10.NDAS plate; 11.NDAS agreement supporter; 12. hard disk I/O format supporter; 13. network bandwidth supporter; 14. hard disk controlling unit; 15.MAC control unit; 20. hard disk groups; 21,22 ~ 2N is the 1st hard disk, the 2nd hard disk ~ the N hard disk.
Embodiment
Referring to accompanying drawing, with specific embodiment, the present invention is described in further detail.
As shown in Figure 1, embedded block mode video storage transfer display system 100 comprises photographing module 110, embedded streaming media processing module 120 and display module 130.Embedded streaming media processing module 120 is connected with photographing module 110, and display module 130 is connected with embedded streaming media processing module 120.
Photographing module 110 comprises multiple video camera, from the 1st video camera 111 to the N video camera 11N, these video cameras are arranged on different places separately, and the video of shooting surrounding enviroment and voice data pass through AVB (Audio Video Bridge) transmission line to embedded streaming media processing module 120.Each video camera can use ball machine, PTZ (Pan Tilt Zoom) video camera, digital camera or analog video camera etc.
Embedded streaming media processing module 120 comprises Streaming Media processing module 120a and NDAS memory module 120b, embodies embedded block mode transmission of video, storage.NDAS is the abbreviation of Network DirectAttach Storage, represents direct network connection memory technology.
As shown in Figure 2, Streaming Media processing module 120a comprises streaming media unit 121, NDAS processing unit 122 and compressed video decoder unit 123.Streaming media unit 121 is connected by AVB transmission line with photographing module 110, and NDAS processing unit 122 is connected with streaming media unit 121, and compressed video decoder unit 123 is connected with NDAS processing unit 122.
The compressed video that streaming media unit 121 transmits for receiving multiple video camera (the 1st video camera 111 to the N video camera 11N), realizes not needing to change the flow medium function carrying out transmitting.Compress mode can be various ways, as: Motion JPEG (Motion Joint PhotographicExperts Group, MJPEG), MPEG (Motion Picture Experts Group)-4, H.264, microwave (Wavelet), JPEG 2000 etc.
MJPEG mode is generally by TCP (Transmission Control Protocol) transmission, and TCP transmits answer signal when receiving terminal receives data, so there is reliability, if resend when not receiving answer signal.It is this that to resend mode very useful when network occurring conflict or there is loss of data as wireless transmission.When resending, video stream media receiving terminal can often go offline, and during use MJPEG, each image is effectively independent, so can provide the video of high image quality.
Contrary MPEG-4 and H.264 generally use UDP (user datagram protocol) or RTP (Real-time Transport Protocol) mode to transmit.UDP cannot guarantee the reliability transmitted, and can not resend for the data of losing, thus RTP and UDP to be applicable to loss of data few, guaranteed the environment of the network bandwidth by QoS (Quality of Service).Good characteristic is had for loss of data when MPEG-4 transmits on RTP/UDP.If when occurring when transmitting on UDP to lose, decoded video quality declines to some extent, but can be repaired the image of loss by calculation procedure.
And UDP is conveyed through the IP multicast function that a flowing can transmit multiple receiving terminal.Can reduce on video decode or video camera under this IP multicast environment and need workload to be processed, the strong point of the network bandwidth can be reduced.From the words MPEG-4 of network bandwidth angle and be H.264 current most popular compress mode.
The image quality of contrary MJPEG is very good, but need the very high network bandwidth, each frame number is independently so extraordinary compress mode on the slow link of speed. contrasts H264 with MJPEG and uses about 1/6 network bandwidth, so may be best compress mode to reduce the network bandwidth.
NDAS processing unit 122 is for having ASIC (the Application Specific Integrated Circuit) chip of NDAS agreement high-speed transfer video/audio.
For making, compressed video is intact is saved in NDAS memory module 120b to NDAS processing unit 122, and compressed video decoder unit 123 reduces after making the video decode of compression.
As shown in Figure 3, NDAS memory module 120b comprises NDAS plate 10 and hard disk groups 20, NDAS plate 10 comprises NDAS agreement supporter 11, hard disk I/O formats supporter 12, network bandwidth supporter 13, hard disk controlling unit 14 and MAC Control Element 15, NDAS agreement supporter 11, hard disk I/O formats supporter 12, network bandwidth supporter 13, hard disk controlling unit 14 are connected with NDAS processing unit 122 respectively with MAC Control Element 15.
Hard disk groups 20 comprises multiple hard disk, from the 1st hard disk 21, the 2nd hard disk 22 to the N hard disk 2N.Each hard disk of hard disk groups 20 is connected with MAC Control Element 15 respectively, and hard disk controlling unit 14 is connected with MAC Control Element 15.
NDAS agreement supporter 11 has the NDAS communication protocol of mating with NDAS processing unit 122, directly video/audio can be stored into hard disk groups 20 when NDAS processing unit 122 sends memory command, and support can with the agreement of NDAS protocol communication.
It is that when sending the reception of initial block mode memory command from NDAS processing unit 122, hard disk corresponding in hard disk groups 20 realizes visualization function that hard disk I/O formats supporter 12.At this moment corresponding hard disk is selected by the mac address information that each plate is intrinsic.
Network bandwidth supporter 13 can provide the network bandwidth of a few gigabit, improves hard disk groups 20 storage speed.
MAC Control Element 15 is by the intrinsic mac address information of each plate, can be operatively connected to the 1st hard disk 21 ~ the N hard disk 2N.
Hard disk controlling unit 14 is for controlling the video/audio of direct memory block unit on each hard disk in hard disk groups 20.
Video/audio can directly be stored in hard disk groups 20 when there is memory command by NDAS processing unit 122.
Each hard disk in hard disk groups 20 stores video/audio according to order with block mode.The type of hard disk can be Hard Disk Drive, HDD, Optical Disk Drive, ODD, SolidState Disk, SSD etc.
Display module 130 is connected with compressed video decoder unit 123, for showing the decoded video of compressed video decoder unit 123.
The above, only to the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Every in claim limited range of the present invention, any amendment made, equivalent replacement, improvement etc., all should within protection scope of the present invention.
Claims (5)
1. an embedded block mode video storage transfer display system, is characterized in that, comprises photographing module and embedded streaming media processing module, and described embedded streaming media processing module comprises Streaming Media processing module and NDAS memory module;
Described Streaming Media processing module comprises streaming media unit and NDAS processing unit, and described streaming media unit is connected by AVB transmission line with described photographing module, and described NDAS processing unit is connected with described streaming media unit; Described NDAS memory module is connected with described NDAS processing unit.
2. embedded block mode video storage transfer display system according to claim 1, it is characterized in that, described NDAS memory module comprises NDAS plate and hard disk groups, described NDAS plate comprises NDAS agreement supporter, hard disk I/O formats supporter, hard disk controlling unit and MAC Control Element, described NDAS agreement supporter, hard disk I/O formats supporter, hard disk controlling unit and MAC Control Element are connected with described NDAS processing unit respectively, described hard disk groups is connected with described MAC Control Element, described hard disk controlling unit is connected with described MAC Control Element.
3. embedded block mode video storage transfer display system according to claim 2, it is characterized in that, described NDAS plate is also provided with network bandwidth supporter, and described network bandwidth supporter is connected with described NDAS processing unit.
4. the embedded block mode video storage transfer display system according to claim 1,2 or 3, it is characterized in that, described Streaming Media processing module is also provided with compressed video decoder unit, described compressed video decoder unit is connected with described NDAS processing unit, and described compressed video decoder unit is connected with display module.
5. embedded block mode video storage transfer display system according to claim 4, it is characterized in that, described photographing module is provided with two or more video camera, and described hard disk groups is provided with two or more hard disk.
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| CN106412513A (en) * | 2016-10-14 | 2017-02-15 | 环球大数据科技有限公司 | Video processing system and processing method |
| CN110049291A (en) * | 2019-04-25 | 2019-07-23 | 南京三宝弘正视觉科技有限公司 | Embedded block mode video stores transfer display system |
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| CN103609127A (en) * | 2011-06-08 | 2014-02-26 | 三星电子株式会社 | Method and system for proxy entity representation in audio/video networks |
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Effective date of registration: 20161017 Address after: 264200 -207, Huang Hai Road, Weihai economic and Technological Development Zone, Shandong, -108 Applicant after: Shandong Ding Yong Electronic Technology Co., Ltd. Address before: 618, A, building 264209, torch innovation base, 213 Torch Road, Weihai hi tech Industrial Development Zone, Shandong, China Applicant before: SHANDONG YINGLONG ELECTRONIC CO., LTD. |
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Application publication date: 20150408 |