CN201830376U - Hard disk video recorder with redundant array of inexpensive disks (RAID) function - Google Patents
Hard disk video recorder with redundant array of inexpensive disks (RAID) function Download PDFInfo
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- CN201830376U CN201830376U CN201020520572XU CN201020520572U CN201830376U CN 201830376 U CN201830376 U CN 201830376U CN 201020520572X U CN201020520572X U CN 201020520572XU CN 201020520572 U CN201020520572 U CN 201020520572U CN 201830376 U CN201830376 U CN 201830376U
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- hard disk
- raid
- disk control
- control circuit
- dvr
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Abstract
The utility model discloses a hard disk video recorder with a redundant array of inexpensive disks (RAID) function, which can back up hard disk information. The video recorder comprises a video input part, an analogue to digital (A/D) converter, a processor, a video encoder, a plurality of hard disks and an RAID hard disk control circuit, wherein the RAID hard disk control circuit is connected with the hard disks; the processor is connected with the RAID hard disk control circuit; and the RAID hard disk control circuit comprises an RAID control sub-circuit and a hard disk control sub-circuit which are connected with each other. In the hard disk video recorder, the RAID hard disk control circuit is connected with and controls the hard disks, a failed hard disk in a group can be replaced in an electrified state and the RAID hard disk control circuit automatically reconstructs data and recovers the data of the failed hard disk after a new hard disk is installed, so that the technical problems of the need of a plurality of hard disk control circuits, data destruction and unavailable data recovery after a hard disk fails and unavailable replacement of a hard disk in the electrified state in the prior art are solved.
Description
Technical field
The utility model relates to the digital video monitoring field, relates in particular to the DVR of a kind of RAID of having (Redundant Array of Inexpensive Disks) function.
Background technology
As everyone knows, utilize digital video to monitor among the industry-by-industry that spreads to people's live and work, particularly some special industries (as banking) and special occasions have all been set up large-scale video monitoring system.In big-and-middle-sized digital video monitor system, because the information point of video monitoring is a lot, need a large number of DVR to finish the collection and the preservation of information point and amount of information, transmit by network then, information is sent to Surveillance center handles, thus the function of realization video monitoring.
Though as the DVR of video information collection and preservation before dispatching from the factory all through the test of overaging, also carried out detection to pressure and environment, thereby reached the requirement of standard detection, but, hard disk itself is limited useful life in actual application, occurs magnetic track damage or aging in the course of the work easily.Yet if the operating state of video tape recorder occurs unusually in the supervisory control system, the information of guarded region can't in time write down and store, and when hard disk corruptions, the situation that data are all lost often occurs.But, be not allow to record a video or monitor the interruption situation to take place for the monitoring of some special industry or the control point that some is responsive.
See also Fig. 1, it is the principle schematic of existing DVR.DVR 10 comprises one or two hard disk 15 of video importation 11, A/D converter 12, video encoder 13, processor 16, some hard disk control circuits 14 and each hard disk control circuit 14 correspondences.Video importation 11 is used to receive the video information input of some passages, A/D converter 12 is used for the analog signal conversion of video importation 11 inputs is become digital signal, video encoder 13 is used for the digital signal after A/D converter 12 conversion is encoded according to predefined form, and hard disk control circuit 14 is used to control the data behind corresponding hard disk 15 memory encodings.In addition, the data after video encoder 13 also will be encoded export on the external network.Now video importation 11 is more common is to gather 25 frames each second, is stored on a certain hard disk 15 by hard disk control circuit 14.Generally, can store uninterrupted collection and the data behind transform coding successively according to the order of hard disk 15.Capacity on all hard disks uses up the data of storage, and the follow-up data of storage that need can directly cover to hard disk.
At present, there is following problem in existing DVR:
At first, existing hard disk all needs to carry out control store by hard disk control circuit 14, and a hard disk control circuit 14 can only be managed two hard disks, and this just makes under the many situation of hard disk, equally also need to be provided with a plurality of hard disk control circuits 14, cause the wasting of resources.
Secondly, separate between the existing hard disk, data will be damaged when hard disk breaks down, and can't recover, and cause loss of vital data easily.
At last, when hard disk has damage, can not the charged for replacement hard disk, this just makes The limited time of changing hard disk.
The utility model content
The purpose of this utility model is to provide a kind of DVR that can back up the RAID function of hard disk information, need a plurality of hard disk control circuits in the prior art to solve, data damage behind the hard disk failure can't recover, technical matters that can not the charged for replacement hard disk.
A kind of DVR with RAID function, comprise processor, video importation, video encoder and some hard disks, also comprise the RAID hard disk control circuit, the RAID hard disk control circuit connects described some hard disks, and described processor connects described RAID hard disk control circuit.
Preferably, the RAID hard disk control circuit comprises RAID control electronic circuit and hard disk control electronic circuit.The RAID hard disk control circuit can be arranged on the mainboard of DVR.
In this example, RAID control electronic circuit adopts existing RAID chip.
Described DVR also comprises some RAID hard disk control circuits, and this or those RAID hard disk control circuit levels are associated on the RAID hard disk control circuit of claim 1.
A kind of DVR with RAID function comprises DVR, also comprises some RAID hard disk control circuits, and an end of described RAID hard disk control circuit connects DVR, and the other end connects some hard disks.
Described a kind of DVR with RAID function, the RAID hard disk control circuit comprises the RAID chip.
The RAID function solves data damage behind the DVR hard disk failure, can't recover, technical matters that can not the charged for replacement hard disk.Description of drawings
Embodiment
Fig. 1 is the principle schematic of existing DVR.
Fig. 2 is the principle schematic with DVR of RAID function.
Fig. 3 is second principle schematic with DVR of RAID function;
Fig. 4 is the 3rd principle schematic with DVR of RAID function;
Fig. 5 is the 4th principle schematic with DVR of RAID function.
Below in conjunction with accompanying drawing, specify the utility model.
RAID is the abbreviation of " Redundant Array of Independent Disk ", and the Chinese meaning is a raid-array.The redundant array of inexpensive disk technology is born in 1987, is proposed by Univ California-Berkeley.Explaining simply, is exactly that N platform hard disk (is divided Hardware, Software) is combined into the jumbo hard disk of virtual separate unit and uses by RAID Controller.The storage system (the perhaps built-in storage of server) that is adopted as of RAID is brought huge interests, and wherein improving transmission rate and fault tolerance is provided is biggest advantage.
At present, the kind of RAID can be divided into again: software RAID (software RAID), hardware RAID (hardware RAID), external RAID (External RAID)
Be included among the system under a lot of situations of software RAID, and become one of them function, as Windows, Netware and Linux.All operations among the software RAID all is responsible for by central processing unit, so usage factor of system resource can be very high, thereby systematic function is reduced.Software RAID does not need to add in addition any hardware device, because it is all the ready-made resources of function-provide by your system-mainly be central processing unit.
Hardware RAID is a pci card normally, has processor and internal memory on this card.Because the processor on this card can provide all RAID resource needed, thus can occupying system resources, thus make the performance of system promote greatly.One of application of hardware RAID is to connect built-in hard disk, hot plug backboard or external storage.No matter connect which kind of hard disk, control all is on the RAID card, that is is controlled by system.In system, hardware RAID pci card all needs to pacify driver usually, otherwise system can refuse to support.Disk array can produce before or after installation system, and what system can look is (large-scale) hard disk, and it has fault-tolerant and redundant function.Disk array is not single only to add a ready-made system, and it more can support capacity extension.Method is also very simple, only needs to add a new hard disk and carry out some simple instructions, the capacity that system just can utilize this newly to add in real time.
External RAID also is belong to hardware RAID a kind of, and difference is that the RAID card can not be installed in the system, and is mounted in the external memory device.This external storage facilities then can be connected on the SCSI card of system.System without any the RAID function because it has only a SCSI card; All RAID functions will move on in this external storage.Benefit is that external storage often can connect more hard disk, not influenced by the size of system chassis.And some senior technology as dual computer fault-tolerant, are to need a plurality of servers to link in the external storage outward, so that fault-tolerant ability to be provided.One of application of external RAID is that any operating system can be installed, therefore with operating system independent.Because in system, only there is a SCSI card, be not the RAID card.And system and this SCSI card hereto, the RAID of this external is a large-scale hard disk, is not what special equipment, so the RAID of this external can install any operating system.Unique requirement is exactly that this SCSI is stuck in this operating system and wants install driver.
The applicant finds and can will use RAID in disk array (such as, external RAID) to be applied to DVR, and sets parameter, such as, set this RAID chip operation pattern.The RAID5 of RAID chip operation pattern, promptly a hard disk is used for backup, and other is used for the normal storage data, has not shut down to realize the automatic fault detection hard disk, the hard disk redundant of rebuilding the data of bad rail of hard disk and supporting must not shut down.
Embodiment 1
See also Fig. 2, it is the principle schematic with DVR of RAID function.It can comprise that video importation 21, A/D converter 22 are (if the video-audio signal of input is a digital signal, then transducer can omit), video encoder 23, processor 28 and some hard disks 27, and comprising a RAID hard disk control circuit 26, RAID hard disk control circuit 26 connects some hard disks 27.
RAID hard disk control circuit 26 can comprise RAID control electronic circuit and hard disk control electronic circuit, and the RAID control chip that RAID control electronic circuit can directly adopt the disk redundancy field to use only carries out parameter designing to it, this as, adopt the 5th kind of working method etc.Hard disk control electronic circuit promptly adopts existing hard disk control circuit to get final product.RAID control electronic circuit connects hard disk control electronic circuit, certainly, also can develop the circuit board that makes new advances, and RAID is controlled electronic circuit and hard disk control electronic circuit integrates.RAID hard disk control circuit 26 is arranged on the main frame of DVR.
The some hard disks 27 that are connected to RAID hard disk control circuit 26 can be divided into some hard disks, and a part is used to write hard disk, and a part is as the backup hard disk, and RAID control electronic circuit is the RAID chip.
In this example, video importation 21 is used to receive the video information input of some passages, A/D converter 22 is used for the analog signal conversion of video importation 21 inputs is become digital signal, video encoder 23 is used for the digital signal after A/D converter 22 conversions is encoded according to predefined form, data after RAID hard disk control circuit 26 is used to control some hard disk 27 storages and backs up coding, some hard disks 27 can be divided into the hard disk of some similar numbers, a part is used to write hard disk, a part is as the backup hard disk, in addition, the data after video encoder 23 also will be encoded export on the network of Ethernet 29.
When the hard disk failure in some hard disks 27, can the charged for replacement hard disk, new hard disk is installed back RAID control circuit with automatic data reconstruction, recovers the data of faulty hard disk.The effect that the RAID function also has the charged for replacement hard disk and can carry a plurality of hard disk work.
Embodiment 2
See also Fig. 3, it is second principle schematic that the utlity model has the DVR of RAID function.With a last example mutually this, RAID hard disk control circuit 26 can also the some RAID hard disk control circuits 31 of cascade, can also connect some hard disks on those RAID hard disk control circuits 31.And when the speed of access hard disk data can meet the requirements of words, those RAID hard disk control circuits 31 also can connect some hard disks by those RAID hard disk control circuits of the some RAID hard disk control circuits of cascade.
Embodiment 3
See also Fig. 4, it is the 3rd principle schematic with DVR of RAID function.Comprise DVR 30, some RAID hard disk control circuits 31, an end of described RAID hard disk control circuit 31 connects DVR 30, and the other end connects some hard disks 32.
RAID hard disk control circuit 31 can comprise RAID control electronic circuit and hard disk control electronic circuit, and the AID control chip that RAID control electronic circuit can directly adopt the disk redundancy field to use only carries out parameter designing to it, such as, adopt the 5th kind of working method etc.Hard disk control electronic circuit promptly adopts existing hard disk control circuit to get final product.RAID control electronic circuit connects hard disk control electronic circuit, certainly, also can develop the circuit board that makes new advances, and RAID is controlled electronic circuit and hard disk control electronic circuit integrates.RAID hard disk control circuit 31 outer being arranged on outside the DVR.
The some hard disks 32 that are connected to RAID hard disk control circuit 31 can be divided into some hard disks, and a part is used to write hard disk, and a part is as the backup hard disk, and RAID control electronic circuit is the RAID chip.
When the hard disk failure in some hard disks 32, can the charged for replacement hard disk, new hard disk is installed back RAID control circuit with automatic data reconstruction, recovers the data of faulty hard disk.The effect that the RAID function also has the charged for replacement hard disk and can carry a plurality of hard disk work.
In addition, external RAID hard disk control circuit 31 also can only comprise the RAID chip, by its control hard disk work.
Embodiment 4
See also Fig. 5, it is the 4th principle schematic with DVR of RAID function for the utility model.Compare with a last example, RAID hard disk control circuit 31 all right some the 2nd RAID hard disk control circuits 33 of cascade can also connect some hard disks on those RAID hard disk control circuits 33.And when the speed of access hard disk data can meet the requirements of words, those RAID hard disk control circuits 33 also can the some RAID hard disk control circuits of cascade, and those RAID hard disk control circuits can connect some hard disks.
More than disclosed only be several specific embodiments of the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection range.
Claims (7)
1. DVR with RAID function, comprise processor, video importation, video encoder and some hard disks, it is characterized in that, also comprise the RAID hard disk control circuit, the RAID hard disk control circuit connects described some hard disks, and described processor connects described RAID hard disk control circuit.
2. DVR as claimed in claim 1 is characterized in that, the RAID hard disk control circuit comprises RAID control electronic circuit and hard disk control electronic circuit.
3. DVR as claimed in claim 2 is characterized in that the RAID hard disk control circuit is arranged on the mainboard of DVR.
4. DVR as claimed in claim 2 is characterized in that, RAID control electronic circuit is the RAID chip.
5. DVR as claimed in claim 1 or 2 is characterized in that, also comprises some RAID hard disk control circuits, and this or those RAID hard disk control circuit levels are associated on the RAID hard disk control circuit of claim 1.
6. the DVR with RAID function comprises DVR, it is characterized in that, also comprises some RAID hard disk control circuits, and an end of described RAID hard disk control circuit connects DVR, and the other end connects some hard disks.
7. a kind of DVR with RAID function as claimed in claim 1 is characterized in that the RAID hard disk control circuit comprises the RAID chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020520572XU CN201830376U (en) | 2010-09-07 | 2010-09-07 | Hard disk video recorder with redundant array of inexpensive disks (RAID) function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020520572XU CN201830376U (en) | 2010-09-07 | 2010-09-07 | Hard disk video recorder with redundant array of inexpensive disks (RAID) function |
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| Publication Number | Publication Date |
|---|---|
| CN201830376U true CN201830376U (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020520572XU Expired - Lifetime CN201830376U (en) | 2010-09-07 | 2010-09-07 | Hard disk video recorder with redundant array of inexpensive disks (RAID) function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355568A (en) * | 2011-09-22 | 2012-02-15 | 杭州海康威视数字技术股份有限公司 | Method and device for carrying out charged uninstallation and installation of hard disk for digital video recorder |
| CN102541473A (en) * | 2011-12-31 | 2012-07-04 | 曙光信息产业股份有限公司 | Method for setting storage equipment of blade server and blade server by utilizing method |
-
2010
- 2010-09-07 CN CN201020520572XU patent/CN201830376U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102355568A (en) * | 2011-09-22 | 2012-02-15 | 杭州海康威视数字技术股份有限公司 | Method and device for carrying out charged uninstallation and installation of hard disk for digital video recorder |
| CN102541473A (en) * | 2011-12-31 | 2012-07-04 | 曙光信息产业股份有限公司 | Method for setting storage equipment of blade server and blade server by utilizing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou better communication technology Co., Ltd. Assignor: Pan Guoping Contract record no.: 2013330000307 Denomination of utility model: Hard disk video recorder with redundant array of inexpensive disks (RAID) function Granted publication date: 20110511 License type: Exclusive License Record date: 20131011 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |