CN105529040A - Method for dynamically controlling CD burning speed in embedded recording device - Google Patents
Method for dynamically controlling CD burning speed in embedded recording device Download PDFInfo
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- CN105529040A CN105529040A CN201510936701.0A CN201510936701A CN105529040A CN 105529040 A CN105529040 A CN 105529040A CN 201510936701 A CN201510936701 A CN 201510936701A CN 105529040 A CN105529040 A CN 105529040A
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- speed
- imprinting
- rom drive
- burning
- etch
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000003044 adaptive effect Effects 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/28—Speed controlling, regulating, or indicating
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
The present invention discloses a method for dynamically controlling a CD burning speed in an embedded recording device. The method comprises a step of identifying the brand of the CD in a CD driver and the type of the CD, a step of dynamically selecting an adaptive burning speed from a burning speed two-dimensional table, and a step of dynamically reducing the speed of burning with the content gradual increase of the burned CD. The embedded recording device has multiple SATA interfaces, multiple CD drivers can be connected, under the support of software algorithms, and the dynamic control of the speed of CD burning can be realized so as to achieve the purpose of reducing the damage rate of the CD by burning. According to the method, the success rate of the simultaneous burning of a single CD or multiple CDs is improved, the equipment working efficiency is improved, and CD waste is reduced. The compatible range of the embedded device to different brands of CD drivers and different brands of CDs is increased, and the burning success rate is not reduced after the hot-plug replacement of the CD driver.
Description
Technical field
The invention belongs to field of video monitoring, particularly relate to a kind of method of Dynamic controlling CD burning speed on embedded video recording equipment.
Background technology
It is several that existing video recorder mainly comprises embedded digital video recorder (DVR), embedded NVR and embedded mixed type DVR etc.
Embedded digital video recorder (DVR) (DVR) is a kind of can its vision signal of analog acquisition such as connecting analog video camera, ball machine carrying out local exporting playback and Video coding this locality stores, network real-time video is propagated embedded type network video equipment.
Embedded NVR(network video recorder) be that one can connect and net control IPC (web camera) front end, the video data transmitted by IPC carries out this locality and stores and forwarded, and decoding shows the equipment of the real time video signals that IPC gathers on the output interface of NVR equipment.
Embedded mixed type DVR is the built-in hard disk video tape recorder equipment of embedded digital video recorder (DVR) and NVR function entirety.
SCSI is a kind of for (hard disk, floppy drive, CD-ROM drive, printer, scanner etc.) system-level universal interface standard between computing machine and smart machine.Embedded digital video recorder (DVR), NVR, mixed type DVR by local scsi interface for comprising hard disk, the standard memory device of CD-ROM drive provides IO interface, for real-time Transmission mass data, and it is simple to possess structure, supports the features such as hot plug.
Commercially CD-ROM drive and disc types is various, in the uneven situation of quality, existing equipment is when polydisc imprinting simultaneously, it is bad that identical etch-recording speed can cause some CD to be carved, and other CD differences reach its suitable etch-recording speed, and reduce work efficiency.
Summary of the invention
The present invention, in order to solve above-mentioned problems of the prior art, provides a kind of method of Dynamic controlling CD burning speed on embedded video recording equipment.
The present invention for addressing this problem taked technical scheme is:
A method for Dynamic controlling CD burning speed on embedded video recording equipment, comprises the following steps:
The brand of CD and the type of CD in Real time identification CD-ROM drive;
The plug of dynamic monitoring CD-ROM drive, identifies CD-ROM drive specification and brand;
On embedded video recording equipment, combine according to current CD-ROM drive specification, brand and the current CD put into, from etch-recording speed bivariate table, Dynamic Selection goes out adaptive imprinting speed;
Along with the content being carved into CD increases gradually, and the continuous increase of the imprinting orbit radius of CD, dynamically reduce the speed of imprinting.
Specifically, described embedded video recording equipment possess multiple SATA interface and USB interface; SATA(SerialAdvancedTechnologyAttachment, Serial Advanced Technology Attachment) be a kind of connection hardware driver interface based on industry standard.The concrete steps of the method are as follows:
Entering and exiting of separate threads poll CD opened by software, obtains MediaID and the optical disc types of CD;
The driving event of snoop-operations system, CD-ROM drive carries out initialization operation after inserting, and reads the etch-recording speed list of CD-ROM drive, manufacturer's id information;
When imprinting program starts, read in the etch-recording speed bivariate table pre-established according to optical disc types and brand and CD-ROM drive specification and brand, from etch-recording speed bivariate table, select corresponding basal rate, open imprinting; When running into the CD or CD-ROM drive do not tested in advance, enter low speed recording modes, guarantee imprinting success with maximum probability;
According to the logical address of current optical disc imprinting, converse current imprinting orbit radius in real time, enter after deceleration area just with the time interval between each bag engraving data of gradual increasing, indirectly on the basis of current etch-recording speed, progressively lower etch-recording speed, ensure the stability proceeding to final stage in imprinting.
The advantage that the present invention has and good effect are:
Embedded video recording equipment of the present invention possesses multiple SATA interface, can access multiple CD-ROM equipment, under the support of software algorithm, can realize the speed of Dynamic controlling CD burning, reduces to reach the object that CD carves bad rate.Invention increases the success ratio of single-deck and polydisc (many CD-ROM drives) imprinting simultaneously, lifting means work efficiency, reduce CD waste.Commercially CD-ROM drive and disc types is various, in the uneven situation of quality, increase the compatible scope of embedded device to different brands CD-ROM drive and different brands CD, solves after hot plug changes CD-ROM drive, keeps imprinting success ratio not decline.
Accompanying drawing explanation
Fig. 1 is the hardware system block diagram of the embedded video recording equipment of one embodiment of the invention.
Embodiment
Be described in detail referring to the method for the drawings and specific embodiments to Dynamic controlling CD burning speed on embedded video recording equipment of the present invention.Specific embodiment described below is only preferred forms of the present invention, and can not be interpreted as limitation of the present invention.
The method of Dynamic controlling CD burning speed on embedded video recording equipment of the present invention, comprises the following steps:
The brand of CD and the type of CD in Real time identification CD-ROM drive;
The plug of dynamic monitoring CD-ROM drive, identifies CD-ROM drive specification and brand;
On embedded video recording equipment, combine according to current CD-ROM drive specification, brand and the current CD put into, from etch-recording speed bivariate table, Dynamic Selection goes out adaptive imprinting speed;
Along with the content being carved into CD increases gradually, and the continuous increase of the imprinting orbit radius of CD, dynamically reduce the speed of imprinting.
A specific embodiment is as follows:
Fig. 1 is the hardware system block diagram of the embedded video recording equipment of one embodiment of the invention.The main body of this system is embedded digital video recorder (DVR)/NVR/ mixed type DVR embedded device.This equipment provides " SATA mouth 1 ", " SATA mouth 2 ", multiple CD-ROM driver interface such as " USB port ", monochromatic light can be supported to drive or the imprinting simultaneously of many CD-ROM drives.
Embedded digital video recorder (DVR)/NVR/ mixed type DVR equipment accesses portable CD-ROM drive by its usb interface, provides the hardware interface of user operation equipment.In this hardware plan, embedded device can provide multiple usb interface, can independently access, and also can access simultaneously, also can not access.
Other parts in embedded digital video recorder (DVR), NVR, mixed type DVR hardware plan, as power supply, simulation shooting and IPC, the encoding and decoding of equipment and Master control chip etc., as the basic content in device hardware scheme, do not describe in detail in the application one by one.
Carving method based on this hardware system is as follows:
Entering and exiting of separate threads poll CD opened by software, obtains MediaID (being equivalent to vendor id) and the optical disc types (DVD+R, DVD-R, BD-R etc.) of CD with MMC instruction.
The driving event of snoop-operations system, CD-ROM drive carries out initialization operation after inserting, by the etch-recording speed list of MMC instruction fetch CD-ROM drive, the information such as manufacturer ID.
According to specification, the brand of the type of CD, brand and CD-ROM drive, an etch-recording speed bivariate table can be combined in advance, read in when being started by imprinting program, schematic table is as shown in table 1, therefrom select suitable basal rate (usually represent with speed and be written as 4x, 6x, 8x etc.) in beginning imprinting program, open imprinting.
Table 1
Note: speed in form needs early stage on the embedded digital video recorder (DVR) of reality, NVR, mixed type DVR equipment, by drawing with experimental data with concrete CD-ROM drive and CD collocation, retain one simultaneously " acquiescence " option, when running into the CD or CD-ROM drive do not tested in advance in actual scene, enter low speed recording modes, adopt minimum etch-recording speed in etch-recording speed bivariate table to carry out imprinting, guarantee imprinting success with maximum probability.
According to the logical address of current optical disc imprinting, converse the current orbit radius be carved in real time, enter after deceleration area just with the time interval before each bag engraving data of gradual increasing, indirectly on the basis of current etch-recording speed, progressively lower etch-recording speed, ensure the stability proceeding to final stage in imprinting.
Linear transformation formula: current radius=optical disc logic address * k
K is that coefficient is relevant with optical disc types, and DVD is generally 5/1000ths, and Blu-ray Disc is generally 20/1000ths.
General CD is divided into central ring from the inside to the outside, the initial inner ring of capacity record, deceleration area, the initial outer ring of capacity record and extension diameter.The orbit radius of central ring is 15mm, the orbit radius of the initial inner ring of capacity record is 44mm to 50mm, the orbit radius of the initial outer ring of extension diameter capacity record is 76-77mm or 116-117mm, deceleration area is the region near the initial outer ring of capacity record, its orbit radius is 40-77mm or 60-117mm, and the orbit radius of extension diameter is 80mm or 120mm.
Claims (2)
1. the method for Dynamic controlling CD burning speed on embedded video recording equipment, it is characterized in that, the method comprises the following steps:
The brand of CD and the type of CD in Real time identification CD-ROM drive;
The plug of dynamic monitoring CD-ROM drive, identifies CD-ROM drive specification and brand;
On embedded video recording equipment, combine according to current CD-ROM drive specification, brand and the current CD put into, from etch-recording speed bivariate table, Dynamic Selection goes out adaptive imprinting speed;
Along with the content being carved into CD increases gradually, and the continuous increase of the imprinting orbit radius of CD, dynamically reduce the speed of imprinting.
2. the method for Dynamic controlling CD burning speed on embedded video recording equipment according to claim 1, described embedded video recording equipment possesses multiple SATA interface and USB interface; It is characterized in that, the concrete steps of the method are as follows:
Entering and exiting of separate threads poll CD opened by software, obtains MediaID and the optical disc types of CD;
The driving event of snoop-operations system, CD-ROM drive carries out initialization operation after inserting, and reads the etch-recording speed list of CD-ROM drive, manufacturer's id information;
When imprinting program starts, read in the etch-recording speed bivariate table pre-established according to optical disc types and brand and CD-ROM drive specification and brand, from etch-recording speed bivariate table, select corresponding basal rate, open imprinting; When running into the CD or CD-ROM drive do not tested in advance, enter low speed recording modes, guarantee imprinting success with maximum probability;
According to the logical address of current optical disc imprinting, converse current imprinting orbit radius in real time, enter after deceleration area just with the time interval between each bag engraving data of gradual increasing, indirectly on the basis of current etch-recording speed, progressively lower etch-recording speed, ensure the stability proceeding to final stage in imprinting.
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| CN201510936701.0A CN105529040B (en) | 2015-12-16 | 2015-12-16 | The method of dynamic control CD burning speed on embedded video recording equipment |
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| CN201510936701.0A CN105529040B (en) | 2015-12-16 | 2015-12-16 | The method of dynamic control CD burning speed on embedded video recording equipment |
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| CN105529040A true CN105529040A (en) | 2016-04-27 |
| CN105529040B CN105529040B (en) | 2018-05-15 |
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| JP2008262652A (en) * | 2007-04-13 | 2008-10-30 | Sharp Corp | Recording and playback device |
| CN102171758A (en) * | 2008-10-08 | 2011-08-31 | 松下电器产业株式会社 | Optical disc recording method, optical disc recording apparatus control method, optical disc recording apparatus, host apparatus, optical disc recording control program, and optical disc recording apparatus control program |
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2015
- 2015-12-16 CN CN201510936701.0A patent/CN105529040B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5502702A (en) * | 1993-08-09 | 1996-03-26 | Yamaha Corporation | Optical disc recording device using basic recording information and projection time control |
| CN1264122A (en) * | 1998-12-11 | 2000-08-23 | 索尼公司 | Output device method, recording device method, reproducing device method and recording medium |
| CN1433005A (en) * | 2002-01-18 | 2003-07-30 | 三星电子株式会社 | Equipment and method of generating write pulse suitable for various light record medium |
| CN1667708A (en) * | 2003-11-28 | 2005-09-14 | 日本先锋公司 | Recording medium, information recording device, information recording method, and information recording medium |
| CN1667709A (en) * | 2003-12-16 | 2005-09-14 | 三星电子株式会社 | Method of determining optimal velocity for recording on optical disc |
| CN1701371A (en) * | 2003-12-16 | 2005-11-23 | 株式会社东芝 | Driving method having driving device for rotating recording medium, and electronic device for driving device |
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| CN1963923A (en) * | 2005-11-08 | 2007-05-16 | 汤姆森许可贸易公司 | Method for transmitting a write strategy to a laser driver |
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Address after: 300384 Tianjin City Huayuan Industrial Zone (outer ring road No. 8) two Haitai branch Applicant after: Tiandi Weiye Technology Co., Ltd. Address before: 300384 Tianjin city Xiqing District Huayuan new technology Industrial Park (outer ring road No. 8) two Haitai branch Applicant before: Tianjin Tiandy Digital Technology Co., Ltd. |
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