CN2812444Y - Video recorder with large-capacity embedded digital harddisk - Google Patents
Video recorder with large-capacity embedded digital harddisk Download PDFInfo
- Publication number
- CN2812444Y CN2812444Y CN 200520057036 CN200520057036U CN2812444Y CN 2812444 Y CN2812444 Y CN 2812444Y CN 200520057036 CN200520057036 CN 200520057036 CN 200520057036 U CN200520057036 U CN 200520057036U CN 2812444 Y CN2812444 Y CN 2812444Y
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- embedded
- video recorder
- big capacity
- hard disc
- operating system
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Abstract
The utility model is a kind of embedded digital hard disc video recorder, is digital video frequency recording equipment in the supervisory control system, belongs to supervising device.The utility model breaks away from the PC framework, adopts the embedded main board of embedded master cpu, and operating system is embedded real-time multi-task operating system, and operating system and working procedure are solidificated among the FLASH MEMORY; Big Capacity design can be handled and 24 the tunnel look the audio frequency input, be with 10 big capacity hard disks; Adopt video compression DSP to realize H.264 digital image compression algorithm; The high cabinet of standard 19 in2 U, frame is available on the machine.
Description
Technical field
The utility model relates to digital video frequency recording equipment in the supervisory control system, particularly relates to embedded digital hard disc video recorder.
Background technology
Digital hard disc video recorder (DVR:digital video recorder) is to be carrier with the hard disc of computer, can write down, the equipment of playback audio-video signal.Its operation principle is with traditional video and audio signal, by the compressed encoding chip, is converted into the file of mpeg format, and is stored on the computer hard disc.The technology owing to use a computer in a large number, it is formed upward, is divided into hardware and software, and software also is divided into operating system and application software (i.e. the software of control record, playback function).Have two kinds by textural classification, first kind is damascene structures, and second kind is the PC structure.
At present widely used is the digital hard disc video recorder of PC structure, but exists many defectives or weak point: 1. big, the Heavy Weight of volume; 2. the card insert type structure causes loose contact easily; 3. inside mainly connects each parts by line, and line gets loose easily and causes instability; 4. be subjected to the restriction of PC (industrial computer) and operating system, have system unstable and to CPU have relatively high expectations, the susceptible viral invasion;
Several embedded digital hard disc video recorder are also arranged in the market, the general 4-8 of the way of the looking audio frequency road of processing, a lot of places need be bought many machines and satisfy user demand, cause cost high, safeguard complicated.
The utility model content
Technical problem to be solved in the utility model: a kind of above-mentioned deficiency that overcomes is provided, can handle 24 the tunnel look audio frequency, can be with the big capacity embedded digital hard disc video recorder of 10 big capacity hard disks.
The utility model is achieved in that the embedded main control processor of its employing high-performance VIA EDEN 800MHz, by the transparent bridge chip PCI6156 expansion of PCI-PCI pci bus, realize that by 6 digital signal processor PNX1303 24 the tunnel look audio compression, realize the big Capacity design of external 10 hard disks by 2 IDE extended chip HPT372.
It also comprises the three layer circuit board snapping modes of employing, by the two-layer audio compression plate of looking of PC104 PLUS standard snapping, thoroughly overcomes the shortcoming of the easy loose contact of card insert type structure, and does not have interconnector between plate on base plate.
The utility model adopts embedded real-time multi-task operating system and embedded type CPU, breaks away from the PC platform fully; Operating system and working procedure are solidificated among the FLASH MEMORY, make system stability reliable;
The utility model adopts video compression DSP to realize that H.264 the video high compression ratio is handled and G.729 standard audio compression processing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a rear interface schematic diagram of the present utility model.
Fig. 3 is the utility model principle schematic.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Structural representation of the present utility model as shown in Figure 1.Be 19 cun high cabinets of 2U of standard, frame is available on the machine.Built-in 3 the big air quantity radiator fans in side guarantee that machine has high thermal stability; Front panel keys comprises button commonly used and urgent button, handled easily; Adopt the VFD display screen, exhibit high brilliance, clear; USB interface is used for by record a video the easily backup of data of USB flash disk.
The interface concentration that the utility model is connected with miscellaneous equipment overleaf, as shown in Figure 2.Comprise the input of 24 road videos, the input of 24 road audio frequency, 24 tunnel alarm inputs, 6 tunnel alarm outputs, 485 bus interface; But TV interface external connection monitors, the external display of VGA interface, audio output interface external speaker, USB interface circumscribed USB storage equipment, 1394 interfaces can external 1394 memory devices, Ethernet interface can external Ethernet.
As accompanying drawing 3, on the embedded main board, master cpu is connected with video pio chip, audio frequency pio chip, Network adaptation chip, the adaptive chip of usb, alarm control chip, IO control chip respectively by data/address bus; By the transparent bridge chip of PCI-PCI, link to each other with 2 IDE extended chips, 6 PCI equipment such as video compression DSP.Shi PinA/D ﹠amp; Video frequency processing chip is realized the analog video signal digitlization, H.264 video compression DSP adopts to data image signal, and algorithm compresses, the digital image information of master cpu after compression is stored on the hard disk and synchronously image exported to display by the video pio chip or monitor shows, sound is exported to audio amplifier by the audio frequency pio chip and play; By the IDE extended chip, complete machine can be installed 10 big capacity IDE hard disks, satisfies the long-time storage of data; Master cpu detects or controls the operating state of button, indicator light, 485 bus VFD display screen remote controllers by the IO control chip; The alarm control chip detects the input of alarm signal, and can send alarm signal, supports the output of 24 switching value inputs and 6 switching values, and supports local alarm and network alarm interlock, reaches the purpose of security protection; Can insert the Ethernet of TCP/IP by the Network adaptation chip, realize remote monitoring; By the adaptive chip of USB, external USB flash disk is realized the backup of data.
The utility model adopts embedded real-time multi-task operating system, application program mainly realizes following function: multichannel is looked compression, storage, the retrieval playback of audio frequency, Yun Jing control, warning input and output control and TCP/IP network displaying live view, remote download, long-range playback, remote upgrade.On video compression DSP, realize the H.264 digital image compression algorithm of independent development and voice compression G.729, the picture quality height, code check is low, and motion search is accurate, and picture quality, code check, frame per second is adjustable.
Claims (4)
1, a kind of embedded digital hard disc video recorder, it is characterized in that: it adopts the embedded main control processor of high-performance VIA EDEN 800MHz, by the transparent bridge chip PCI6156 expansion of PCI-PCI pci bus, realize that by 6 digital signal processor PNX1303 24 the tunnel look audio compression, realize the big Capacity design of external 10 hard disks by 2 IDE extended chip HPT372.
2, big capacity embedded digital hard disc video recorder according to claim 1 is characterized in that: adopt the mode of three layer circuit board snappings, on base plate by the two-layer audio compression plate of looking of PC104PLUS standard snapping.
3, big capacity embedded digital hard disc video recorder according to claim 1 is characterized in that: adopt embedded real-time multi-task operating system.
4, big capacity embedded digital hard disc video recorder according to claim 1, it is characterized in that: video compression algorithm adopts H.264 standard, and audio compression algorithm adopts G.729 standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057036 CN2812444Y (en) | 2005-04-19 | 2005-04-19 | Video recorder with large-capacity embedded digital harddisk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520057036 CN2812444Y (en) | 2005-04-19 | 2005-04-19 | Video recorder with large-capacity embedded digital harddisk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2812444Y true CN2812444Y (en) | 2006-08-30 |
Family
ID=36938829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520057036 Expired - Fee Related CN2812444Y (en) | 2005-04-19 | 2005-04-19 | Video recorder with large-capacity embedded digital harddisk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2812444Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243615A (en) * | 2011-03-21 | 2011-11-16 | 广东志成冠军集团有限公司 | Memory buffer management mechanism supporting audio/video frame storage |
| CN101212701B (en) * | 2006-12-25 | 2012-07-18 | 上海乐金广电电子有限公司 | Self-diagnosing method for digital video recorder |
| 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 |
-
2005
- 2005-04-19 CN CN 200520057036 patent/CN2812444Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212701B (en) * | 2006-12-25 | 2012-07-18 | 上海乐金广电电子有限公司 | Self-diagnosing method for digital video recorder |
| CN102243615A (en) * | 2011-03-21 | 2011-11-16 | 广东志成冠军集团有限公司 | Memory buffer management mechanism supporting audio/video frame storage |
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060830 |