CN202696778U - Multi-system high-definition input digital hard-disk video recorder - Google Patents
Multi-system high-definition input digital hard-disk video recorder Download PDFInfo
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- CN202696778U CN202696778U CN 201220374639 CN201220374639U CN202696778U CN 202696778 U CN202696778 U CN 202696778U CN 201220374639 CN201220374639 CN 201220374639 CN 201220374639 U CN201220374639 U CN 201220374639U CN 202696778 U CN202696778 U CN 202696778U
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Abstract
The utility model discloses a multi-system high-definition input digital hard-disk video recorder, relating to the technical field of video server systems of high-definition input digital video recorders. The multi-system high-definition input digital hard-disk video recorder is composed of a storage module (1), an audio stream processing module (2), a video stream processing module (3), a clock synchronization module (4) and an audio/video output processing chip (5), wherein the storage module (1) is mutually connected with the audio stream processing module (2) and the video stream processing module (3) respectively, the audio stream processing module (2) and the video stream processing module (3) are connected through the clock synchronization module (4), and the audio stream processing module (2) and the video stream processing module (3) are respectively connected with the audio/video output processing chip (5). According to the utility model, high-definition video output is realized by using the high-performance audio/video output processing chip, and the multi-system high-definition input digital hard-disk video recorder has the characteristics of synchronousness in audio/video transmission, no loss in switching, simple structure and powerful and practical functions.
Description
Technical field:
The utility model relates to high definition input digit video recorder server system technical field, relates in particular to a kind of multi-modulation scheme high definition input digit DVR.
Background technology:
The tradition embedded digital video recorder (DVR) system is AFE (analog front end), adopt analog form interconnected between control point and the center DVR, because being subject to the impact of transmission range and analog signal loss, also there is significant limitation in the position of control point, can't realize remote deployment, and DVR adopts AFE (analog front end), the center needs to lay video line to each control point, tone frequency channel wire, alarming line, all multi-lines such as control line, if opening circuit appears in which bar line, careful loaded down with trivial details artificial investigation, therefore the workload of wiring is quite loaded down with trivial details, and, the larger then workload of project scale is larger, wiring cost is also higher, it has powerful video recording besides, memory function, but the performance of this performance still is limited by its AFE (analog front end), be that DVR can't realize front-end stores, in case central apparatus or circuit break down, Video Document just has no way of having obtained, although NVR also begins large-scale application in addition, but most PC formula NVR is in stability, functional, the large scale deployment that factor on expansion and integrated and the cost also fails always, on storage architecture, the cost of later stage dilatation is generally higher, it is not that easily each memory device is relatively independent that hard disk is changed at OIR, generally lacks to share to support, higher to systems organization requirement in early stage, the renewal of the equipment in later stage and system upgrade relative cost are also higher.
Present most video monitoring remains from the AFE (analog front end) camera and obtains video stream data, leave on the storage server, the video format of storing also is single data format, can't satisfy needs in particular cases, particularly on important security protection event and important security protection place, in the situation of network interruption or inefficacy, because front-end stores can be subjected to the impact of network, can affect the instantaneous recording function.
The utility model content:
The purpose of this utility model provides a kind of multi-modulation scheme high definition input digit DVR, and it utilizes high-performance audio frequency and video output process chip to realize HD video output, has the audio-visual synchronization transmission, and harmless conversion is simple in structure, the characteristics of powerful practicality.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it is comprised of memory module 1, audio stream processing module 2, video flow processing module 3, clock synchronization module 4, audio frequency and video output process chip 5; Memory module 1 interconnects with audio stream processing module 2 and video flow processing module 3 respectively, connect by clock synchronization module 4 between audio stream processing module 2 and the video flow processing module 3, audio stream processing module 2 is connected with the video flow processing module and is all exported process chip 5 with audio frequency and video and be connected.
Described audio stream processing module 2 comprises audio collecting device, audio processing chip, clock phase-locked loop circuit and imput output circuit.
Described video flow processing module 3 comprises high definition video collecting equipment, video frequency processing chip, external sync clock interface and imput output circuit.
The utility model adopts NVR+FC SAN as the video monitoring system of full networked framework; interconnected by IP network between control point equipment and the NVR; can be positioned at the optional position of network; can not be subject to the restriction of region; utilize the whole network management of NVR supervisory control system can realize transmission line; whole process monitoring and the centralized management of transmission network and all IP front ends; this form and function is powerful; can realize many NVR main frame shared disk arrays; realize high speed data transfer by optical fiber; because in the array shared set, ratio is easier to, and FC SAN equipment has the RAID protection; support hard disk to change at OIR; contrast DVR, a netting twine has just been removed the above-mentioned video line that comprises from; tone frequency channel wires etc. have reduced cost at all interior loaded down with trivial details circuits; this NVR is based on Embedded simultaneously; contrast PC formula need not windows operating system, has only kept the required function of NVR; reliability is high, and it is little to have a software code; the advantages such as increasingly automated and corresponding speed is fast.
The utility model adopts high-definition network camera to utilize small-sized flash card or hard disk, it is the ANF technology, can be in network interruption or situation about losing efficacy, because front-end stores is not subjected to the impact of network, can carry out the resiliency storage, rear end NVR just can be after network reconnects, with the additional rear end that is transferred to of the video that is stored in the front end buffer memory in the network failure process.
The used video compression coding of the utility model adopts most popular H.264 compression algorithm, remove more redundant information, be implemented in and realize high-quality Video coding on the lower broadband, H.264 compression ratio is more than 2 times of MPEG-2, be 1.5～2 times of MPEG-4, thereby obtain better picture quality.
When the utility model is exported at Real Time Monitoring, can realize that by high-performance GS2972 audio frequency and video pio chip the 3G-SDI high-definition image exports in real time, satisfy the high definition demand of special circumstances, simultaneously, because this has sent integrated chip cable driver, voltage controlled oscillator and completely audio frequency and video support are than cost, power consumption and the board area of the about saving 30% of common solution.
The utility model utilizes high-performance audio frequency and video output process chip to realize HD video output, has the audio-visual synchronization transmission, and harmless conversion is simple in structure, the characteristics of powerful practicality.
Description of drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is schematic flow sheet of the present utility model;
Fig. 3 is audio stream process chart of the present utility model;
Fig. 4 is video flow processing flow chart of the present utility model.
Embodiment:
With reference to Fig. 1, this embodiment by the following technical solutions: it is comprised of memory module 1, audio stream processing module 2, video flow processing module 3, clock synchronization module 4, audio frequency and video output process chip 5; Memory module 1 interconnects with audio stream processing module 2 and video flow processing module 3 respectively, connect by clock synchronization module 4 between audio stream processing module 2 and the video flow processing module 3, audio stream processing module 2 is connected with the video flow processing module and is all exported process chip 5 with audio frequency and video and be connected.
Described audio stream processing module 2 comprises audio collecting device, audio processing chip, clock phase-locked loop circuit and imput output circuit.
Described video flow processing module 3 comprises high definition video collecting equipment, video frequency processing chip, external sync clock interface and imput output circuit.
This embodiment adopts NVR+FC SAN as the video monitoring system of full networked framework; interconnected by IP network between control point equipment and the NVR; can be positioned at the optional position of network; can not be subject to the restriction of region; utilize the whole network management of NVR supervisory control system can realize transmission line; whole process monitoring and the centralized management of transmission network and all IP front ends; this form and function is powerful; can realize many NVR main frame shared disk arrays; realize high speed data transfer by optical fiber; because in the array shared set, ratio is easier to, and FC SAN equipment has the RAID protection; support hard disk to change at OIR; contrast DVR, a netting twine has just been removed the above-mentioned video line that comprises from; tone frequency channel wires etc. have reduced cost at all interior loaded down with trivial details circuits; this NVR is based on Embedded simultaneously; contrast PC formula need not windows operating system, has only kept the required function of NVR; reliability is high, and it is little to have a software code; the advantages such as increasingly automated and corresponding speed is fast.
This embodiment adopts high-definition network camera to utilize small-sized flash card or hard disk, it is the ANF technology, can be in network interruption or situation about losing efficacy, because front-end stores is not subjected to the impact of network, can carry out the resiliency storage, rear end NVR just can be after network reconnects, with the additional rear end that is transferred to of the video that is stored in the front end buffer memory in the network failure process.
The used video compression coding of this embodiment adopts most popular H.264 compression algorithm, remove more redundant information, be implemented in and realize high-quality Video coding on the lower broadband, H.264 compression ratio is more than 2 times of MPEG-2, be 1.5～2 times of MPEG-4, thereby obtain better picture quality.
When this embodiment is exported at Real Time Monitoring, can realize that by high-performance GS2972 audio frequency and video pio chip the 3G-SDI high-definition image exports in real time, satisfy the high definition demand of special circumstances, simultaneously, because this has sent integrated chip cable driver, voltage controlled oscillator and completely audio frequency and video support are than cost, power consumption and the board area of the about saving 30% of common solution.
With reference to Fig. 2; this embodiment is take audio frequency and video output process chip 5 as one of input core; after video flowing receives; it is the multi-format conversion of the video processor of core by SP-12HD video processor 6; and automatically identify the video standard of inputting; can be converted to composite video; the 480i/60 of component vide or SDI; 480p/60; 576i/50 and 576p/50 standard-definition signals; and the 720p/50 of component vide or HD-SDI; 720p/60; 1080p/24; 1080p/25; 1080p/30; 1080i/50; 1080i/60; 1080p/24; 1080p/25 and 1080p/30 high-definition signal; utilize the NVR network storage server to realize local/remote monitoring playback; storage architecture adopts NVR+FC SAN storage; under this framework; the NVR server directly writes data under the corresponding disk of SAN; this form and function is powerful; can realize many NVR main frame shared disk arrays; realize high speed data transfer by optical fiber; because in the array shared set; ratio is easier to; and FC SAN equipment has the RAID protection; support hard disk to change at OIR, have power supply redundancy; the robust techniques such as specialty heat radiation.
With reference to Fig. 3, this embodiment is in video signal transmission, and audio collecting device is transferred to audio process to isochronous audio, and the Audio Signal Processing passage is processed by audio signal detection, audio frequency preliminary treatment, audio frequency and audio output circuit consists of; Audio signal detects carries out peak value detection, average detection, background detection to the audio signal of input; The audio frequency pre-detection is that audio signal is carried out balance input processing and frequency equilibrium; Audio frequency is processed automatically control of voice-grade channel gain realization, makes the audio output signal level equalization; Audio output circuit amplifies through 4 tunnel distribution outputs the audio signal clipping after processing; The centralized control unit circuit is complete machine management control core, and to audio input signal, real sampling when audio output signal carries out, the various lower control signals of making state display and each several part circuit are processed and drawn to a minute folding by central control circuit; Then be transferred to storage server, pass to the GS2972 chip by 8 road sound lines simultaneously, and the output of HD video real-time synchronization.
With reference to Fig. 4, this embodiment video processor directly with the speed rates of 20bit/s to audio frequency and video process chip GS2972, because this has sent integrated chip cable driver, voltage controlled oscillator and completely audio frequency and video support, cost, power consumption and board area than the about saving 30% of common solution, and can be operated in four basic at user option patterns: SMPTE pattern, DVB-ASI pattern, by pattern and the standby mode of data; In the SMPTE pattern, comprehensive all the SMPTE processing capacities of GS2972, two kinds of forms of SMPTE425M grade A and grade B all support the A level of 10 of 1080P 50/60 4:2:2 to the optional conversion of B level; In the DVB-ASI pattern, device will be carried out the preferential transmission of 8b/10b coding; Cross pattern at data communication device, all SMPTE and DVB-ASI process disabled.This equipment can be used as a simple parallel serial converter, can also operate in a lower power-consumption standby pattern; Under this pattern, without any signal, produce output; GS2972 is integrated SMPTE 259M-C who meets the SMPTE standard fully, the UDI of SMPTE292 and SMPTE 424M, it has automatic double pendulum selects, and depends on 3Gb/s or high definition or SD business demand.
This embodiment is in order to realize the function of audio-visual synchronization, added the clock phase-locked loop combiner circuit, its core is the GS4911 chip, GS4911 is the high flexible that and timing sequencer have identical function, numerically controlled clock phase-locked loop synthesis chip, by this chip generating video and audio clock and timing signal, and allow the phase-locked input reference of a plurality of devices, simultaneously input reference signal be can also identify and 36 kinds of different video standards and 16 kinds of different graphical formats met, and the input reference of meeting genlock output timing information, owing to also support cross lock, output is phase-locked to is different from the input reference of selecting the output video standard, the user can select 8 kinds of different video output sampling clock speed or 13 different figure read clock rates, also but Further Division uses inner voltage divider, and can be right in two video clock outputs and a LVDS video output; Three audio sample clocks output by providing produces audio clock, and from 6.6khz to 96khz, audio frequency and video progressively realizes by outside 10FID input reference, and 10FID signal is specified by internal register or the audio frame sequence of a user program.
This embodiment utilizes high-performance audio frequency and video output process chip to realize HD video output, has the audio-visual synchronization transmission, and harmless conversion is simple in structure, the characteristics of powerful practicality.
Claims (4)
1. a multi-modulation scheme high definition input digit DVR is characterized in that it is comprised of memory module (1), audio stream processing module (2), video flow processing module (3), clock synchronization module (4), audio frequency and video output process chip (5); Memory module (1) interconnects with audio stream processing module (2) and video flow processing module (3) respectively, connect by clock synchronization module (4) between audio stream processing module (2) and the video flow processing module (3), audio stream processing module (2) is connected 3 with the video flow processing module) all be connected with audio frequency and video output process chip (5).
2. a kind of multi-modulation scheme high definition input digit DVR according to claim 1 is characterized in that described audio stream processing module (2) comprises audio collecting device, audio processing chip, clock phase-locked loop circuit and imput output circuit.
3. a kind of multi-modulation scheme high definition input digit DVR according to claim 1 is characterized in that described video flow processing module (3) comprises high definition video collecting equipment, video frequency processing chip, external sync clock interface and imput output circuit.
4. a kind of multi-modulation scheme high definition input digit DVR according to claim 1 is characterized in that described storage architecture adopts NVR+FC SAN framework.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220374639 CN202696778U (en) | 2012-07-30 | 2012-07-30 | Multi-system high-definition input digital hard-disk video recorder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220374639 CN202696778U (en) | 2012-07-30 | 2012-07-30 | Multi-system high-definition input digital hard-disk video recorder |
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| CN202696778U true CN202696778U (en) | 2013-01-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620889A (en) * | 2018-06-20 | 2019-12-27 | 杭州海康威视数字技术股份有限公司 | Video monitoring system, network hard disk video recorder and data transmission method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620889A (en) * | 2018-06-20 | 2019-12-27 | 杭州海康威视数字技术股份有限公司 | Video monitoring system, network hard disk video recorder and data transmission method |
| CN110620889B (en) * | 2018-06-20 | 2022-04-05 | 杭州海康威视数字技术股份有限公司 | Video monitoring system, network hard disk video recorder and data transmission method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130730 |