CN201374784Y - Eight-channel embedded type digital video recorder - Google Patents
Eight-channel embedded type digital video recorder Download PDFInfo
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- CN201374784Y CN201374784Y CN200920135576U CN200920135576U CN201374784Y CN 201374784 Y CN201374784 Y CN 201374784Y CN 200920135576 U CN200920135576 U CN 200920135576U CN 200920135576 U CN200920135576 U CN 200920135576U CN 201374784 Y CN201374784 Y CN 201374784Y
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Abstract
An eight-channel embedded type digital video recorder comprises video and audio A/D converters, an embedded type video and audio data compression encoding chip and local SATA hard disks, wherein the video and audio A/D converter and the embedded type video and audio data compression encoding chip are in cascade connection. The compression encoding chip comprises a multi-core processing chip consisting of an MIPS processor core and two DSP processor cores, and the video and audio A/D converter includes two video and audio A/D converters which utilize a four-channel video and audio mixed flow mode to input and are combined with the multi-core processing chip to form two four-channel parallel data acquisition systems. By utilizing the eight-channel embedded type digital video recorder, the integral cost of the DVR can be reduced, and particularly, an eight-channel embedded DVR manufactured by utilizing a chip PNX8950 has high compressibility, clear image after restoration, high improvement and higher cost performance ratio after deinterlearing and denoising treatment. Moreover, by further utilizing the stable SATA hard disks with high cost performance ratio and an embedded type Linux operating system, the eight-channel embedded digital video recorder also has high system stability. In addition, the risk of failure of operation caused by system breakdown can be reduced by utilizing an active-standby dual system.
Description
Technical field
The utility model relates to video tape recorder, particularly relates to a kind of 8 tunnel embedded digital hard disc video recorder.
Background technology
Digital hard disc video recorder (Digital Video Recorder, be called for short DVR) integrate the repertoire of video tape recorder, image splitter, video switcher, controller, distance transmission system, itself can connect alarm probe, warning signal, realize the alarm linkage function, also can carry out the image mobile detection, can control The Cloud Terrace and camera lens, can pass through networking images and control signal by decoder.Existing DVR can be divided into two big classes by system configuration: based on the PC formula DVR of PC framework and the embedded digital video recorder (DVR) of disengaging PC framework.Embedded digital video recorder (DVR) is based on the embedded system of flush bonding processor and embedded real-time operating system, and it adopts special chip image to be compressed and the decompress(ion) playback, and embedded OS mainly is control and the management of finishing complete machine.This series products does not have so much module of PC formula DVR and unnecessary software function, when manufacturing and designing to soft, the stability of hardware has been carried out planning targetedly, not only in the storage speed of looking the audio compression code stream, all have greatly improved on resolution and the image quality, and stability is strong, the problem that does not have deadlock produces, requiring to be widely used in the high supervisory control system to the stability requirement height or to the data confidentiality, as intelligent transportation, electric power system, urban public security, financial sector, educational system, intelligent building, colliery and prison etc. be not if the industry of using PC formula DVR can select to use embedded digital video recorder (DVR) to functional requirement is high yet in the past.Existing 8 road embedded digital video recorder (DVR)s are various in style, and characteristics are different, but performance all is left to be desired.
Summary of the invention
Technical problem to be solved in the utility model is to remedy above-mentioned the deficiencies in the prior art, proposes a kind of low cost, 8 tunnel higher embedded digital hard disc video recorder of image definition.
Technical problem of the present utility model is solved by the following technical solutions:
This 8 tunnel embedded digital hard disc video recorder, what comprise cascade looks audio A/D transducer, embedded video/audio compressed encoding chip and local SATA hard disk.
The characteristics of this 8 tunnel embedded digital hard disc video recorder are:
Described embedded video/audio compressed encoding chip comprises the multinuclear process chip of a MIPS processor core and two dsp processor nuclears.
Described look audio A/D transducer be two 4 passages look the input of audio mix stream mode look audio A/D transducer, form two 4 channel parallel data acquisition systems with described multinuclear process chip, close 1 video/audio signal be separated into two 4 tunnel respectively video/audio signal data independently 4.
Technical problem of the present utility model adopts following further technical scheme to be solved:
Described multinuclear process chip is to adopt the process chip of built-in Linux operating system.
Described multinuclear process chip is based on the SoC chip PNX8950 of Philips.
Described look audio A/D transducer be 4 passages look audio mix stream mode input look audio A/D conversion chip TW2815, form 4 channel parallel data acquisition systems with the dsp processor nuclear in the described multinuclear process chip, by the multinuclear process chip video/audio is analyzed, detect from the EAV synchronous code and begin the effective video data line, filter out invalid field blanking data and horizontal blanking data, after the fractionation respectively to 4 tunnel code streams by using H.264 Coding Compression Algorithm compress, adopting G.729 to voice data, algorithm compresses; Close 14 passage mixed video data with 4 and be split as 4 single pass video datas.
Described local SATA hard disk is by being connected to the SATA interface on SATA hard-disk interface chip or the mainboard as the 7 pin thin cable of transmitting data channel.Adopt the point-to-point connected mode of thin cable, each SATA interface can only connect a hard disk, needn't as parallel hard disk wire jumper be set, and system can be set at master with the SATA hard disk automatically.
Be provided with the standby system of restarting automatically,, restart automatically by the house dog hardware circuit, and select automatically to start, in standby system, host system software is repaired from standby system when main system is destroyed when causing system crash by the house dog hardware circuit.
The beneficial effect that the utility model is compared with the prior art is:
The utility model adopts the multinuclear process chip, can reduce the whole cost of DVR, especially adopt SoC chip PNX8950 to make 16 tunnel embedded digital video recorder (DVR) based on Philips, image has been carried out deinterleaving and noise reduction process, and compression ratio height, reduction back image quality is clear, promotes greatly, and cost performance is higher; The utility model also adopts the stable SATA hard disk and the built-in Linux operating system of high performance-price ratio, and the stability of a system is also high; Adopt active and standby Dual System Design, when main system is destroyed when causing system crash, restart automatically by the house dog hardware circuit, and select automatically to start from standby system, in standby system, host system software is repaired automatically, can be reduced the risk that to work because of system crash.
Description of drawings
Accompanying drawing is the system architecture diagram of embodiment of the present utility model.
Embodiment
Below in conjunction with embodiment and contrast accompanying drawing the utility model is described in further detail.
A kind of as shown in drawings 8 tunnel embedded digital hard disc video recorder, what comprise cascade looks audio A/D transducer, embedded video/audio compressed encoding chip and local SATA hard disk.
Embedded video/audio compressed encoding chip is the multinuclear process chip PNX8950 that comprise a MIPS processor core and two dsp processors nuclear, be adopt built-in Linux operating system, based on the SoC chip of Philips.Start by multinuclear process chip PNX8950 load and execution software code from the FLASH chip, and download in the local internal memory, to two 4 passages totally 8 road Voice ﹠ Video data gather and the compression of encoding is handled.
Look audio A/D transducer and be two 4 passages look the input of audio mix stream mode looks audio A/D conversion chip TW2815, each looks 4 road videos and 4 tunnel audio signals that audio A/D conversion chip TW2815 can insert simulation, the 8 tunnel looks audio frequency input altogether.Form two 4 channel parallel data acquisition systems with the dsp processor nuclear among the multinuclear process chip PNX8950, look audio A/D conversion chip TW2815 by the AI of multinuclear process chip PNX8950 and data audio frequency and the video data after the VIP mouth importing conversion, multinuclear process chip PNX8950 carries out the collection and the encoding compression processing of 4 road Voice ﹠ Video data, comprise by video stream data and split the deconsolidation process that algorithm carries out 4 road video stream datas, detect from the EAV synchronous code and begin the effective video data line, filter out invalid field blanking data and horizontal blanking data; After the fractionation respectively to 4 tunnel code streams by using H.264 Coding Compression Algorithm compress, the compression ratio height, image quality after the reduction is clear, and the MBS among the multinuclear process chip PNX8950, VPK coprocessor carried out deinterleaving and noise reduction process to video image, and it is very big that image quality is promoted; Also adopting G.729 to voice data after the fractionation, algorithm compresses; Close 14 passage mixed video data with 4 and be split as 4 single pass video datas.Video after the compression and voice data are recorded a video by local SATA hard-disc storage; Video recording also can be transferred to Terminal Server Client by software decode playback or remote storage by Ethernet.
This locality has four groups of SATA hard disks 1,2,3,4 to be connected to SATA hard-disk interface chip by 7 pin thin cable as the transmission data channel.Adopt the point-to-point connected mode of thin cable, each SATA interface can only connect a hard disk, needn't as parallel hard disk wire jumper be set, and system can be set at master with the SATA hard disk automatically.
Be provided with the standby system of restarting automatically,, restart automatically by the house dog hardware circuit, and select automatically to start, in standby system, host system software is repaired from standby system when main system is destroyed when causing system crash by the house dog hardware circuit.
This embodiment is applicable to various monitoring fields such as building, mansion, shop, road.
Above content is to further describing that the utility model is done in conjunction with concrete preferred implementation; under the prerequisite that does not break away from the utility model design, make some alternative or obvious modification that are equal to; and performance or purposes are identical, all should be considered as belonging to protection range of the present utility model.
Claims (6)
1, a kind of 8 tunnel embedded digital hard disc video recorder, what comprise cascade looks audio A/D transducer, embedded video/audio compressed encoding chip, and local SATA hard disk, it is characterized in that:
Described embedded video/audio compressed encoding chip comprises the multinuclear process chip of a MIPS processor core and two dsp processor nuclears;
Described look audio A/D transducer be two 4 passages look the input of audio mix stream mode look audio A/D transducer, form two 4 channel parallel data acquisition systems with described multinuclear process chip.
2,8 tunnel embedded digital hard disc video recorder as claimed in claim 1 is characterized in that:
Described multinuclear process chip is to adopt the process chip of built-in Linux operating system.
3,8 tunnel embedded digital hard disc video recorder as claimed in claim 1 or 2 is characterized in that:
Described multinuclear process chip is based on the SoC chip PNX8950 of Philips.
4,8 tunnel embedded digital hard disc video recorder as claimed in claim 3 is characterized in that:
Described look audio A/D transducer be 4 passages look audio mix stream mode input look audio A/D conversion chip TW2815, form 4 channel parallel data acquisition systems with the dsp processor nuclear in the described multinuclear process chip.
5,8 tunnel embedded digital hard disc video recorder as claimed in claim 4 is characterized in that:
Described local SATA hard disk is by being connected to the SATA interface on SATA hard-disk interface chip or the mainboard as the 7 pin thin cable of transmitting data channel.
6,8 tunnel embedded digital hard disc video recorder as claimed in claim 5 is characterized in that:
Be provided with the standby system of restarting automatically by the house dog hardware circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135576U CN201374784Y (en) | 2009-03-13 | 2009-03-13 | Eight-channel embedded type digital video recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135576U CN201374784Y (en) | 2009-03-13 | 2009-03-13 | Eight-channel embedded type digital video recorder |
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| Publication Number | Publication Date |
|---|---|
| CN201374784Y true CN201374784Y (en) | 2009-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200920135576U Expired - Lifetime CN201374784Y (en) | 2009-03-13 | 2009-03-13 | Eight-channel embedded type digital video recorder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196156A (en) * | 2010-03-17 | 2011-09-21 | 上海良相电子科技有限公司 | Equipment for processing blurred images |
| CN102308538A (en) * | 2011-07-20 | 2012-01-04 | 华为技术有限公司 | Message processing method and device |
| CN102630000A (en) * | 2012-04-18 | 2012-08-08 | 天津天地伟业数码科技有限公司 | Eight-path SDI (Serial Digital Interface) embedded digital video recorder |
-
2009
- 2009-03-13 CN CN200920135576U patent/CN201374784Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102196156A (en) * | 2010-03-17 | 2011-09-21 | 上海良相电子科技有限公司 | Equipment for processing blurred images |
| CN102308538A (en) * | 2011-07-20 | 2012-01-04 | 华为技术有限公司 | Message processing method and device |
| WO2012106905A1 (en) * | 2011-07-20 | 2012-08-16 | 华为技术有限公司 | Message processing method and device |
| CN102308538B (en) * | 2011-07-20 | 2014-11-05 | 华为技术有限公司 | Message processing method and device |
| CN102630000A (en) * | 2012-04-18 | 2012-08-08 | 天津天地伟业数码科技有限公司 | Eight-path SDI (Serial Digital Interface) embedded digital video recorder |
| CN102630000B (en) * | 2012-04-18 | 2014-04-16 | 天津天地伟业数码科技有限公司 | Eight-path SDI (Serial Digital Interface) embedded digital video recorder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518054 Nanshan District Nanshan Road, Guangdong City, the new horizons apartment, floor, floor, Patentee after: Shenzhen pan sea Sanjiang electronic Limited by Share Ltd Address before: 518054 Nanshan District Nanshan Road, Guangdong City, the new horizons apartment, floor, floor, Patentee before: Shenzhen Fanhai Sanjiang Electronics Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20091230 |
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| CX01 | Expiry of patent term |