CN201374786Y - Multi-channel embedded type digital video recorder - Google Patents
Multi-channel embedded type digital video recorder Download PDFInfo
- Publication number
- CN201374786Y CN201374786Y CN200920135575U CN200920135575U CN201374786Y CN 201374786 Y CN201374786 Y CN 201374786Y CN 200920135575 U CN200920135575 U CN 200920135575U CN 200920135575 U CN200920135575 U CN 200920135575U CN 201374786 Y CN201374786 Y CN 201374786Y
- Authority
- CN
- China
- Prior art keywords
- chip
- process chip
- audio
- video recorder
- multinuclear process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
A multi-channel embedded type video recorder comprises a video and audio A/D converter, 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 main multi-core processing chip and an auxiliary multi-core processing chip, the insides of the main multi-core processing chip and the auxiliary multi-core processing chip are respectively comprises an MIPS processor chip and two DSP processor cores, and the three processor cores of the main multi-core processing chip and the three processor cores of the auxiliary multi-core processing chip are connected via a PCI bus. The video and audio A/D converter utilizes at least four four-channel video and audio mixed flow mode inputs, and is combined with the DSP processor cores in the main and auxiliary multi-core processing chips to form at least four four-channel parallel data acquisition systems. By utilizing the multi-channel embedded type digital video recorder, the integral cost of the DVR can be reduced, and particularly, a 16-channel embedded type DVR manufactured by a chip PNX8950 is higher in cost performance ratio. The hard disks and the operating system of the multi-channel embedded digital video recorder are high in stability, and 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 embedded hard disc video tape recorder of large route number.
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.Owing to the restriction that is subjected to reasons such as cost, the market demand, technical difficulty, the mainstream product in the market is 8 tunnel a embedded digital video recorder (DVR) at the most, and the embedded digital video recorder (DVR) of large route number is also rarely found on market.
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 the embedded digital hard disc video recorder of a kind of low cost, large route number that cost performance is high.
Technical problem of the present utility model is solved by the following technical solutions:
The embedded digital hard disc video recorder of this large route number, what comprise cascade looks audio A/D transducer, embedded video/audio compressed encoding chip and local SATA hard disk.
The characteristics of the embedded digital hard disc video recorder of this large route number are:
Described embedded video/audio compressed encoding chip comprises a main multinuclear process chip and association's multinuclear process chip, described master, association multinuclear process chip inside respectively comprise a MIPS processor core and two dsp processors nuclears, adopt pci bus to connect between three processor cores of main multinuclear process chip and three processor cores of association's multinuclear process chip and communicate and collaborative work.
Described look audio A/D transducer be at least four 4 passages look the input of audio mix stream mode look audio A/D transducer, form at least four 4 channel parallel data acquisition systems with the dsp processor nuclear in described main multinuclear process chip and the association's multinuclear process chip, close 1 video/audio signal be separated at least four 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 main multinuclear process chip and association's multinuclear process chip are to adopt the process chip of built-in Linux operating system.
Described main multinuclear process chip and association's multinuclear process chip are 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 described main multinuclear process chip and the association's multinuclear process chip, by main multinuclear process chip and association's 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.
Described large route number is at least 16 the tunnel.
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 16 road embedded hard disc video tape recorders, 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 comprises a main multinuclear process chip and one association multinuclear process chip, main multinuclear process chip and association's multinuclear process chip be adopt built-in Linux operating system, based on the SoC chip PNX8950 of Philips.Main, association multinuclear process chip PNX8950 inside respectively comprises a MIPS processor core and two dsp processors nuclears, adopts pci bus to connect between three processor cores of main multinuclear process chip and three processor cores of association's multinuclear process chip and communicates and collaborative work.Elder generation is by main multinuclear process chip PNX8950 load and execution software code from the FLASH chip during startup, after main multinuclear process chip PNX8950 starts, the software code of the multinuclear process chip PNX8950 of association is downloaded in its local internal memory, and by the multinuclear process chip PNX8950 of associated drives software control association start-up course.
Look audio A/D transducer and be four 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 16 tunnel looks audio frequency input altogether.Form four 4 channel parallel data acquisition systems with the dsp processor nuclear among main multinuclear process chip PNX8950 and the multinuclear process chip PNX8950 of association, look audio A/D conversion chip TW2815 by the AI of main multinuclear process chip PNX8950 and the multinuclear process chip PNX8950 of association and data audio frequency and the video data after the VIP mouth importing conversion, main multinuclear process chip PNX8950 and the multinuclear process chip PNX8950 of association respectively carry 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.Wherein assisting video after the multinuclear process chip PNX8950 encoding compression and voice data to be sent to by pci bus records a video on the main multinuclear process chip PNX8950 and Network Transmission is handled.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.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, make some being equal under the prerequisite of the utility model design and substitute or obvious modification not breaking away from, and performance or purposes are identical, all should be considered as belonging to protection range of the present utility model.
Claims (7)
1, a kind of embedded digital hard disc video recorder of large route number, 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 a main multinuclear process chip and association's multinuclear process chip, described master, association multinuclear process chip inside respectively comprise a MIPS processor core and two dsp processors nuclears, adopt pci bus to connect between three processor cores of main multinuclear process chip and three processor cores of association's multinuclear process chip;
Described look audio A/D transducer be at least four 4 passages look the input of audio mix stream mode look audio A/D transducer, form at least four 4 channel parallel data acquisition systems with the dsp processor nuclear in described main multinuclear process chip and the association's multinuclear process chip.
2, the embedded digital hard disc video recorder of large route number as claimed in claim 1 is characterized in that:
Described main multinuclear process chip and association's multinuclear process chip are to adopt the process chip of built-in Linux operating system.
3, the embedded digital hard disc video recorder of large route number as claimed in claim 1 or 2 is characterized in that:
Described main multinuclear process chip and association's multinuclear process chip are based on the SoC chip PNX8950 of Philips.
4, the embedded digital hard disc video recorder of large route number 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 described main multinuclear process chip and the association's multinuclear process chip.
5, the embedded digital hard disc video recorder of large route number 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, the embedded digital hard disc video recorder of large route number as claimed in claim 5 is characterized in that:
Be provided with the standby system of restarting automatically by the house dog hardware circuit.
7, the embedded digital hard disc video recorder of large route number as claimed in claim 6 is characterized in that:
Described large route number is at least 16 the tunnel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135575U CN201374786Y (en) | 2009-03-13 | 2009-03-13 | Multi-channel embedded type digital video recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920135575U CN201374786Y (en) | 2009-03-13 | 2009-03-13 | Multi-channel embedded type digital video recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374786Y true CN201374786Y (en) | 2009-12-30 |
Family
ID=41500867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920135575U Expired - Lifetime CN201374786Y (en) | 2009-03-13 | 2009-03-13 | Multi-channel embedded type digital video recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374786Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313020A (en) * | 2013-06-27 | 2013-09-18 | 武汉烽火众智数字技术有限责任公司 | Video cascading device for multi-way high-definition network video recorder and method thereof |
| CN105450543A (en) * | 2015-12-01 | 2016-03-30 | 四川神琥科技有限公司 | Voice data transmission method |
-
2009
- 2009-03-13 CN CN200920135575U patent/CN201374786Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103313020A (en) * | 2013-06-27 | 2013-09-18 | 武汉烽火众智数字技术有限责任公司 | Video cascading device for multi-way high-definition network video recorder and method thereof |
| CN105450543A (en) * | 2015-12-01 | 2016-03-30 | 四川神琥科技有限公司 | Voice data transmission method |
| CN105450543B (en) * | 2015-12-01 | 2018-07-20 | 四川神琥科技有限公司 | Voice data transmission method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101516036B (en) | Embedded hard disk video recorder with large number of paths | |
| CN104363429B (en) | A kind of locomotive operation monitoring system | |
| CN102547444A (en) | Method for optimizing play of real-time video monitoring record | |
| CN102938836A (en) | Real-time dynamic remote judicial evidence obtaining system | |
| CN102881307A (en) | Video and audio recording and playing system and method | |
| CN204258983U (en) | Video and audio tape deck | |
| CN201374784Y (en) | Eight-channel embedded type digital video recorder | |
| CN103188518A (en) | Wireless network video storage system and wireless network video monitoring method thereof | |
| CN201374786Y (en) | Multi-channel embedded type digital video recorder | |
| CN202190352U (en) | Command system for interrogation monitoring and court hearing public prosecution | |
| CN203070377U (en) | Digital video, audio and charging data linkage processing system | |
| CN203191548U (en) | A real-time monitoring multichannel radar data acquiring and playing back apparatus | |
| CN202663505U (en) | Intelligent traffic video collecting and monitoring system based on third generation (3G) network transmission | |
| CN203025547U (en) | Wireless vehicle-mounted monitoring device based on Internet of Things | |
| CN201812317U (en) | Locomotive integrated wireless communication recording system | |
| CN200959133Y (en) | Apparatus for phonetic record and telecommunication of locomotive | |
| CN107277457A (en) | A kind of multi-channel video capturing for being used to impart knowledge to students and processing equipment and method | |
| CN202334750U (en) | High-definition AV (Audio/Video) trial system | |
| CN101378496A (en) | Highgrade integration management system for monitoring remote video dynamically | |
| CN101217644A (en) | A single chip DSP network video processing system | |
| CN102955809A (en) | Method and system for editing and playing media files | |
| CN201577159U (en) | City bus mobile video monitoring and real-time tracking dispatching system | |
| CN202422734U (en) | Real-time streaming media DVD (digital video disk) recording device | |
| CN101742199B (en) | Recorded broadcast workstation system | |
| CN1713725A (en) | Assembled multifunctional processor of video frequency |
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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091230 |