CN110880333A - Data transmission device and method - Google Patents
Data transmission device and method Download PDFInfo
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- CN110880333A CN110880333A CN201811028834.8A CN201811028834A CN110880333A CN 110880333 A CN110880333 A CN 110880333A CN 201811028834 A CN201811028834 A CN 201811028834A CN 110880333 A CN110880333 A CN 110880333A
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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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
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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
- G11B7/005—Reproducing
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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
- G11B7/0055—Erasing
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Abstract
The invention discloses a data transmission device, which comprises a data recording medium, a data writing module, a data reading module and a ferry mechanism, wherein the data writing module and the data reading module are arranged on a circumference which takes the center of the ferry mechanism as the center of a circle in a crossed manner at intervals; the ferrying mechanism is used for supporting the data recording medium and driving the data recording medium to move between the data writing module and the data reading module. The invention sets a plurality of independent optical drives to write and read data respectively, realizes that data in one part of data recording medium is written while data in the other part of data recording medium is read, then drives two groups of data recording media to move to the appointed position through the ferry mechanism, and continues to write and read data, thereby greatly improving the transmission efficiency of data.
Description
Technical Field
The present invention relates to the field of data storage and data transmission, and in particular, to a data transmission apparatus and method.
Background
In data communication, data transmission or exchange can be performed between an internal network and an external network, between a public network and a private network, and between a secret network and a non-secret network, which have different security levels. In most cases, the security of data transmission needs to be guaranteed, and data exchange realized by wireless connection or wired connection cannot meet the requirement of a user on security, and a reliable way is to physically isolate two networks with different security levels for data transmission, and the operation mode is as follows: the method of data transfer using optical disc as carrier includes writing target data into blank optical disc in "network for providing data", and mechanically transporting optical disc carrying target data to "network for receiving data" for data storage.
Current data storage media primarily include optical disks, magnetic tape, and the like. Optical discs are often used to store important data as a stable storage carrier. The data ferrying process is that the data stored in the external network is recorded into a blank optical disc, and then the data stored in the recorded optical disc is stored in the internal network for storage. The ferry process can also be carried out by carrying the data in the internal network to the external network for storage.
In the existing physical isolation optical disc storage device, an optical disc is only used as a carrier for transferring data from an internal network to an external network or from the external network to the internal network, the optical disc is also transferred from the internal network to the external network or from the external network to the internal network in the data transfer process, the transfer process is often completed by a manipulator with a complex structure and a large volume, and the manipulator can generally only grab one optical disc at a time in the disc grabbing process, and the disc grabbing speed and the long-term reliability are low.
Therefore, there is a need to improve the prior art and provide a data transmission apparatus and method.
Disclosure of Invention
The invention aims to provide a data transmission device and a data transmission method aiming at the defects of the prior art.
The invention is realized by the following technical scheme:
the invention provides a data transmission device, comprising a data recording medium, a data writing module, a data reading module and a ferry mechanism, wherein,
the data writing module is used for writing data into the data recording medium;
the data reading module is used for reading data in the data recording medium;
the data writing module and the data reading module are spaced at a certain distance;
the data writing module and the data reading module are in no electric connection and no signal transmission;
the data writing module and the data reading module are respectively provided with N groups, wherein N is more than or equal to 1; the data writing module and the data reading module are alternately and crossly arranged on a circumference which takes the center of the ferry mechanism as the circle center;
the ferrying mechanism is used for supporting the data recording medium and driving the data recording medium to move between the data writing module and the data reading module.
The data reading module is used for reading data in the data recording medium, and the data erasing module is used for erasing the data in the data recording medium after the data reading module reads the data in the data recording medium, wherein the data recording medium is an optical disc, a magnetic disc or a magnetic tape.
Furthermore, the data recording medium is an optical disc, and a group of the data writing modules and a group of the data reading modules are integrated on a first optical disc drive, wherein the first optical disc drive has at least two groups.
Further, the data recording medium is an optical disc, the data writing module is a first optical drive, and the data reading module is a second optical drive.
Further, the optical disc is an erasable optical disc, the data erasing module is a first optical drive, the first optical drive is further used for erasing recorded data on the optical disc, and the first optical drive and the second optical drive are arranged on a circumference with the center of the ferry mechanism as a circle center at equal intervals.
Furthermore, the optical disc is an erasable optical disc, the data erasing module is a third optical drive, the third optical drive has N groups, N is greater than or equal to 1, the third optical drive is used for erasing recorded data on the optical disc, the first optical drive, the second optical drive and the third optical drive are uniformly arranged on a circumference which takes the center of the ferry mechanism as a circle center, and the second optical drive is arranged between the first optical drive and the third optical drive.
The optical disc drive further comprises a first control circuit group and a second control circuit group, wherein the first control circuit group is connected with the first optical disc drive and is used for controlling the working state of the first optical disc drive; the second control circuit group is connected with the second optical drive and used for controlling the working state of the second optical drive.
Further, still include first optical drive position sensor and second optical drive position sensor, first optical drive position sensor with first optical drive corresponds the setting, second optical drive position sensor with the second optical drive corresponds the setting, first optical drive position sensor is used for detecting whether first optical drive is in the diskettes state, and feed back the testing result to first control circuit group, second optical drive position sensor is used for detecting whether the second optical drive is in the diskettes state, and feed back the testing result to first control circuit group.
Furthermore, the first control circuit group is respectively connected with the first optical drive position sensor, the second optical drive position sensor and the ferry mechanism, and the first control circuit group is further used for controlling the action of the ferry mechanism according to detection signals of the first optical drive position sensor and the second optical drive position sensor.
Further, the ferry mechanism is also used for supporting a medium storage box of the data recording medium, and the medium storage box is positioned above the ferry mechanism; the medium storage box comprises an upper cover and a lower cover, a cavity for accommodating the optical disks is formed between the upper cover and the lower cover, the number of the optical disks is 2N, and N is more than or equal to 1; a pressing plate is arranged between the upper cover and the optical disc, an opening is arranged on the lower cover, and the data writing module writes data into the optical disc through the opening; the data reading module reads the data in the optical disc through the opening;
the ferrying mechanism enables the optical disk to move between the data reading module and the data writing module through the carrying medium storage box; the ferry mechanism comprises a rotating tray, a driving motor and a support, the rotating tray and the driving motor are both arranged on the support, the driving motor is used for driving the rotating tray to rotate, and the limiting device is arranged between the rotating tray and the support; the limiting device is used for limiting the position of the rotating tray.
Further, the optical disc drive further comprises a first medium storage box position sensor and a second medium storage box position sensor, wherein the first medium storage box position sensor is arranged corresponding to the first optical drive, the second medium storage box position sensor is arranged corresponding to the second optical drive, and the first medium storage box position sensor and the second medium storage box position sensor are both used for detecting whether the medium storage box reaches the corresponding positions of the first optical drive and the second optical drive.
The invention also provides a data transmission method, which comprises the following steps:
s1, a ferry mechanism simultaneously supports 2N groups of data recording media, wherein N is more than or equal to 1, the N groups of data recording media are first data recording media, the rest are second data recording media, the first data recording media are moved to a data writing module, the second data recording media are moved to a data reading module, and the data writing module writes data into the first data recording media;
s2, the ferry mechanism supports the data recording medium to move between the data writing module and the data reading module, the data writing module writes data into the second data recording medium, and meanwhile the data reading module reads the data in the first data recording medium.
Preferably, the set of data writing modules and the set of data reading modules are integrated on a first optical drive, and the first optical drive has at least two sets.
Preferably, the data writing module is a first optical drive, and the data reading module is a second optical drive.
Preferably, the step S2 is followed by:
and S3, the ferrying mechanism moves the first data recording medium to a data erasing module, and simultaneously moves the second data recording medium to the data reading module, the data erasing module erases data on the first data recording medium, and the data reading module reads data in the second data recording medium.
The invention has the beneficial effects that:
(1) the data transmission device is based on independent recording media such as optical disks, magnetic disks and the like, and the data writing module and the data transmission module are not connected and in data communication, so that strict physical isolation is realized; the device can rapidly transport the recorded optical disk to the data reading module to read data through mechanical motion, and realizes the safe transmission of data from an external network to an internal network or from the internal network to the external network.
(2) The invention sets a plurality of independent optical drives to write and read data respectively, realizes that data in one part of data recording medium is written while data in the other part of data recording medium is read, then drives a plurality of groups of data recording media to move to the appointed position through the ferry mechanism, and continues to write and read data, thereby greatly improving the transmission efficiency of data.
(3) The ferry mechanism of the invention transfers the optical disks by supporting and carrying the medium storage box storing a plurality of optical disks, the ferry mechanism does not directly contact the optical disks, the actions of grabbing and putting the optical disks by a manipulator are omitted, and the optical disk loss is avoided. Meanwhile, the CD-ROM drive part also omits a CD-ROM drive tray and does not have the mechanical action of the access of the common CD-ROM drive tray, thereby improving the working efficiency and reducing the mechanical error caused by the existence of the CD-ROM drive tray.
(4) The data transmission device of the invention is provided with the sensor component on the CD-ROM component, and can quickly realize the accurate matching of the CD and the CD-ROM in the transfer process of the CD.
(5) The erasable optical disc can be repeatedly used, the safety and the stability of data transfer are ensured, the consumption of the optical disc is effectively reduced, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed for the embodiment or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic diagram of a data transmission apparatus according to the present invention;
FIG. 2 is a schematic view of a media storage cassette configuration of the present invention;
FIG. 3 is a schematic view of a lower lid construction of the media storage cartridge of the present invention;
FIG. 4 is a schematic structural view of the ferry mechanism of the present invention;
FIG. 5 is a diagram illustrating an optical disc drive according to the present invention;
FIG. 6 is a schematic diagram of a ferry mechanism and an optical disc drive according to the present invention in a disc reading state;
FIG. 7 is a side view of the ferry mechanism and the optical disc drive in a disc reading state according to the present invention;
FIG. 8 is a sectional view taken along line A-A of FIG. 6 according to the present invention;
FIG. 9 is a schematic structural diagram of a ferry mechanism and an optical disc drive in a tray-off state according to the present invention;
FIG. 10 is a side view of the ferry mechanism and optical drive of the present invention in a diskless state;
FIG. 11 is a sectional view taken along line A-A of FIG. 9 in the present invention.
Wherein the reference numerals in the figures correspond to: 1-medium storage box, 2-optical disk, 3-first optical drive, 4-second optical drive, 5-first control circuit group, 6-second control circuit group, 7-upper cover, 8-lower cover, 9-optical disk tray, 10-positioning hole, 11-rotating tray, 12-positioning column, 13-supporting plate, 14-buckle, 15-clapboard, 16-driving motor, 17-support, 18-first opening, 19-second opening, 20-frame, 21-box body, 22-box cover, 23-pressing plate, 24-spacing device, 25-first medium storage box position sensor, 26-second medium storage box position sensor, 27-first optical drive position sensor, 28-second optical drive position sensor, 29-a second optical drive position control sensor, 30-a unhooking electromagnet, 31-a unhooking pull rod, 32-a unhooking connecting rod, 33-a clamping hook connecting plate, 34-a limiting clamping hook, 35-a limiting plate, 36-a gear set, 37-a home sensing baffle, 38-an optical drive sensing baffle plate, 39-a sensing linkage rod baffle, 40-an auxiliary shaft, 41-a reset spring, 42-a home sensor, 43-an optical drive reading head, 44-an optical drive motor, 45-a second optical drive signal electromagnet and 46-a connecting rod baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention discloses a data transmission device, comprising a data recording medium, a data writing module, a data reading module and a ferry mechanism, wherein,
the data writing module is used for writing data into the data recording medium;
the data reading module is used for reading data in the data recording medium;
the data writing module and the data reading module are spaced at a certain distance;
the data writing module and the data reading module are in no electric connection and no signal transmission; the data writing module and the data reading module are alternately and crossly arranged on a circumference which takes the center of the ferry mechanism as the circle center;
two groups of data recording media are arranged and are respectively positioned at two ends of the ferry mechanism;
the ferrying mechanism is used for supporting and carrying two groups of data recording media and simultaneously driving the two groups of data recording media to move between the data writing module and the data reading module.
The following describes the apparatus of the present invention, taking the data recording medium as an optical disc as an example: as shown in fig. 1-11, the data recording medium is an optical disc 2, the data writing module is a first optical drive 3, and the first optical drive 3 is used for recording data into the optical disc 2; the data reading module is a second optical drive 4, and the second optical drive 4 is used for reading the recorded data on the optical disc 2. The first optical drive 3 and the second optical drive 4 are not connected in any way and work independently.
The device of the invention also comprises a first control circuit group 5 and a second control circuit group 6, wherein the first control circuit group 5 is connected with the first optical drive 3, and the second control circuit group 6 is connected with the second optical drive 4; the first control circuit group 5 is used for controlling the state of the first optical drive 3, and the second control circuit group 6 is used for controlling the state of the second optical drive 4. The states of the first optical drive 3 and the second optical drive 4 include two states of tray separation and resetting of the optical drive and the optical disc 2.
The device of the present invention further comprises a first optical drive position sensor 27 and a second optical drive position sensor 28, wherein the first optical drive position sensor 27 is disposed corresponding to the first optical drive 3, the second optical drive position sensor 28 is disposed corresponding to the second optical drive 4, the first optical drive position sensor 27 is configured to detect whether the first optical drive 3 is in a tray-off state, and feed back a detection result to the first control circuit group 5, and the second optical drive position sensor 28 is configured to detect whether the second optical drive 4 is in a tray-off state, and feed back a detection result to the first control circuit group 5.
The first control circuit group 5 is respectively connected with the first optical drive position sensor 27, the second optical drive position sensor 28 and the ferry mechanism, and the first control circuit group 5 is further configured to control the ferry mechanism to operate according to detection signals of the first optical drive position sensor 27 and the second optical drive position sensor 28.
The apparatus of the present invention further comprises a first media storage cassette position sensor 25 and a second media storage cassette position sensor 26, said first media storage cassette position sensor 25 being arranged in correspondence with said first optical drive 3, said second media storage cassette position sensor 26 being arranged in correspondence with said second optical drive 4, said first media storage cassette position sensor 25 and said second media storage cassette position sensor 26 both being adapted to detect whether said media storage cassette 1 reaches a respective position of said first optical drive 3 and said second optical drive 4.
The ferry mechanism comprises a rotating tray 11, a limiting device 24, a driving motor 16 and a support 17, wherein the rotating tray 11 and the driving motor 16 are both arranged on the support 17, the driving motor 16 is used for driving the rotating tray 11 to rotate, and the limiting device 24 is arranged between the rotating tray 11 and the support 17. The support 17 is also provided with a home sensing baffle 37 and a home sensor 42.
The ferry mechanism is also used for supporting a medium storage box 1 of the data recording medium, and the medium storage box 1 is positioned above the ferry mechanism; the ferry mechanism moves the optical disc 2 between the data reading module and the data writing module by supporting the medium storage cartridge 1.
The medium storage box 1 is a double-disc box, the double-disc box comprises an upper cover 7 and a lower cover 8, a cavity for accommodating the optical disc 2 is formed between the upper cover 7 and the lower cover 8, a pressing plate 23 is arranged between the upper cover 7 and the optical disc 2, two optical disc trays 9 are arranged on one side, close to the upper cover 7, of the lower cover 8, a buckle 14 is arranged between the two optical disc trays 9, and a positioning hole 10 is formed in the lower cover 8. The first optical drive 3 and the second optical drive 4 are both provided with an optical drive reading head 43 and an optical drive motor 44, the lower cover 8 is provided with an opening, the optical drive reading head 43 writes or reads data in the optical disc 2 through the opening, and the second optical drive 4 is also provided with a second optical drive signal electromagnet 45 and a connecting rod separation blade 46 connected with the second optical drive signal electromagnet; the first optical drive 3 and the second optical drive 4 are arranged on the same supporting plate 13, the ferry mechanism is arranged between the first optical drive 3 and the second optical drive 4, a partition plate 15 is arranged between the medium storage box 1 and the supporting plate 13, and the partition plate 15 and the optical disk tray 9 do not shield the data area of the optical disk. The partition 15 is provided with a first opening 18 matched with the rotary tray 11. Two ends of the supporting plate 13 are provided with frames 20, the frames 20 are U-shaped, and the partition plate 15 is provided with second openings 19 matched with the frames 20. The rotating tray 11 is provided with a positioning column 12, and the positioning column 12 is matched with the positioning hole 10.
A second optical drive position control sensor 29 is further arranged on the supporting plate 13, the second optical drive position control sensor 29 is used for sending a pulse signal to the second control circuit group 6, and the second control circuit group 6 controls the second optical drive 4 to complete the tray-off action;
still be provided with optical drive sensing baffle plate 38 in the backup pad 13, optical drive sensing baffle plate 38 is used for first optical drive 3 blocks first optical drive position sensor 27 after accomplishing the decoiling, still is used for second optical drive 4 accomplishes the decoiling after, promotes sensing gangbar baffle plate 39 and blocks second optical drive position sensor 28, the both ends of sensing gangbar baffle plate 39 are provided with auxiliary shaft 40 and reset spring 41 respectively, auxiliary shaft 40 and reset spring 41 are used for sensing gangbar baffle plate 39's restoration.
The limiting device 24 comprises a limiting hook 34 and a limiting plate 35, the limiting hook 34 is arranged in the limiting plate 35, a hook connecting plate 33 connected with the limiting hook 34 is further arranged on the support 17, a unhooking electromagnet 30 is arranged at one end of the support 17, the unhooking electromagnet 30 is sequentially connected with a unhooking pull rod 31 and a unhooking connecting rod 32, and the unhooking connecting rod 32 is used for shifting the limiting hook 34; a gear set 36 is further disposed on the support 17, and the gear set 36 is used for driving the rotary tray 11 to rotate.
The data transmission device is arranged in the box body 21, and a box cover 22 matched with the box body 21 is arranged on the box body 21.
In a specific application scenario, in order to improve data transmission efficiency, the number of the first optical drives 3 is two, and when one of the first optical drives 3 erases data in the optical disc 2, the other first optical drive 3 is used for recording the data into the optical disc 2.
Certainly, as an optional implementation manner, the number of the first optical drives 3 and the number of the second optical drives 4 may be multiple, the data is recorded on the multiple first optical drives 3 at the same time, and the data is read by the multiple second optical drives 4 at the same time, so that the data transmission efficiency is greatly improved.
Alternatively, in the apparatus of the present invention, the data recording medium may be a separate recording medium such as a magnetic disk or a magnetic tape.
Example 2
In this embodiment, the data recording medium is an optical disc 2, the data writing module is a first optical drive 3, and the first optical drive 3 is configured to record data into the optical disc 2; the data reading module is a second optical drive 4, and the second optical drive 4 is used for reading the recorded data on the optical disc 2. The first optical drive 3 and the second optical drive 4 are not connected in any way and work independently.
The device of the invention also comprises a first control circuit group 5 and a second control circuit group 6, wherein the first control circuit group 5 is connected with the first optical drive 3, and the second control circuit group 6 is connected with the second optical drive 4; the first control circuit group 5 is used for controlling the state of the first optical drive 3, and the second control circuit group 6 is used for controlling the state of the second optical drive 4. The states of the first optical drive 3 and the second optical drive 4 include two states of tray separation and resetting of the optical drive and the optical disc 2.
The device of the present invention further comprises a first optical drive position sensor 27 and a second optical drive position sensor 28, wherein the first optical drive position sensor 27 is disposed corresponding to the first optical drive 3, the second optical drive position sensor 28 is disposed corresponding to the second optical drive 4, the first optical drive position sensor 27 is configured to detect whether the first optical drive 3 is in a tray-off state, and feed back a detection result to the first control circuit group 5, and the second optical drive position sensor 28 is configured to detect whether the second optical drive 4 is in a tray-off state, and feed back a detection result to the first control circuit group 5.
The first control circuit group 5 is respectively connected with the first optical drive position sensor 27, the second optical drive position sensor 28 and the ferry mechanism, and the first control circuit group 5 is further configured to control the ferry mechanism to operate according to detection signals of the first optical drive position sensor 27 and the second optical drive position sensor 28. The ferry mechanism is also used for supporting the medium storage box 1 of the data recording medium, and the medium storage box 1 is positioned above the ferry mechanism.
The apparatus of the present invention further comprises a first media storage cassette position sensor 25 and a second media storage cassette position sensor 26, said first media storage cassette position sensor 25 being arranged in correspondence with said first optical drive 3, said second media storage cassette position sensor 26 being arranged in correspondence with said second optical drive 4, said first media storage cassette position sensor 25 and said second media storage cassette position sensor 26 both being adapted to detect whether said media storage cassette 1 reaches a respective position of said first optical drive 3 and said second optical drive 4.
The ferry mechanism comprises a rotating tray 11, a limiting device 24, a driving motor 16 and a support 17, wherein the rotating tray 11 and the driving motor 16 are both arranged on the support 17, the driving motor 16 is used for driving the rotating tray 11 to rotate, and the limiting device 24 is arranged between the rotating tray 11 and the support 17. The support 17 is also provided with a home sensing baffle 37 and a home sensor 42.
The medium storage box 1 is a double-disc box, the double-disc box comprises an upper cover 7 and a lower cover 8, a cavity for accommodating the optical disc 2 is formed between the upper cover 7 and the lower cover 8, a pressing plate 23 is arranged between the upper cover 7 and the optical disc 2, two optical disc trays 9 are arranged on one side, close to the upper cover 7, of the lower cover 8, a buckle 14 is arranged between the two optical disc trays 9, and a positioning hole 10 is formed in the lower cover 8.
The first optical drive 3 and the second optical drive 4 are both provided with an optical drive reading head 43 and an optical drive motor 44, and the second optical drive 4 is also provided with a second optical drive signal electromagnet 45 and a connecting rod separation blade 46 connected with the second optical drive signal electromagnet; the first optical drive 3 and the second optical drive 4 are arranged on the same supporting plate 13, the ferry mechanism is arranged between the first optical drive 3 and the second optical drive 4, a partition plate 15 is arranged between the medium storage box 1 and the supporting plate 13, and the partition plate 15 and the optical disk tray 9 do not shield the data area of the optical disk. The partition 15 is provided with a first opening 18 matched with the rotary tray 11. Two ends of the supporting plate 13 are provided with frames 20, the frames 20 are U-shaped, and the partition plate 15 is provided with second openings 19 matched with the frames 20. The rotating tray 11 is provided with a positioning column 12, and the positioning column 12 is matched with the positioning hole 10.
A second optical drive position control sensor 29 is further arranged on the supporting plate 13, the second optical drive position control sensor 29 is used for sending a pulse signal to the second control circuit group 6, and the second control circuit group 6 controls the second optical drive 4 to complete the tray-off action;
still be provided with optical drive sensing baffle plate 38 in the backup pad 13, optical drive sensing baffle plate 38 is used for first optical drive 3 blocks first optical drive position sensor 27 after accomplishing the decoiling, still is used for second optical drive 4 accomplishes the decoiling after, promotes sensing gangbar baffle plate 39 and blocks second optical drive position sensor 28, the both ends of sensing gangbar baffle plate 39 are provided with auxiliary shaft 40 and reset spring 41 respectively, auxiliary shaft 40 and reset spring 41 are used for sensing gangbar baffle plate 39's restoration.
The limiting device 24 comprises a limiting hook 34 and a limiting plate 35, the limiting hook 34 is arranged in the limiting plate 35, a hook connecting plate 33 connected with the limiting hook 34 is further arranged on the support 17, a unhooking electromagnet 30 is arranged at one end of the support 17, the unhooking electromagnet 30 is sequentially connected with a unhooking pull rod 31 and a unhooking connecting rod 32, and the unhooking connecting rod 32 is used for shifting the limiting hook 34; a gear set 36 is further disposed on the support 17, and the gear set 36 is used for driving the rotary tray 11 to rotate.
The data transmission device is arranged in the box body 21, and a box cover 22 matched with the box body 21 is arranged on the box body 21.
Further, in order to improve the utilization rate of the optical disc and improve the data reading, writing and transmission efficiency, the optical disc 2 is a rewritable optical disc.
The device of the invention also comprises a third optical drive and a third control circuit group, wherein the third control circuit group is connected with the third optical drive and is used for controlling the state of the third optical drive; the third optical drive is used for erasing the data in the optical disc 2 and then returning to the first optical drive for recording data again.
Certainly, as an optional implementation manner, the numbers of the first optical drives 3, the second optical drives 4, and the third optical drives in the present invention may be multiple, the multiple first optical drives 3 record data simultaneously, the multiple second optical drives 4 read data simultaneously, and the multiple third optical drives erase data simultaneously, so that the data transmission efficiency is greatly improved.
Alternatively, in the apparatus of the present invention, the data recording medium may be a separate recording medium such as a magnetic disk or a magnetic tape.
Example 3
The invention discloses a data transmission device, comprising a data recording medium, a data writing module, a data reading module and a ferry mechanism, wherein,
the data writing module is used for writing data into the data recording medium;
the data reading module is used for reading data in the data recording medium;
the data writing module and the data reading module are spaced at a certain distance;
the data writing module and the data reading module are in no electric connection and no signal transmission; the data writing module and the data reading module are alternately and crossly arranged on a circumference which takes the center of the ferry mechanism as the circle center;
the ferrying mechanism is used for supporting and carrying two groups of data recording media and simultaneously driving the two groups of data recording media to move between the data writing module and the data reading module.
The ferry mechanism is used for supporting a medium storage box 1 loaded with the data recording medium, and the medium storage box 1 is positioned above the ferry mechanism; the medium storage box 1 is a double-disc box in which two optical discs 2 are stored;
a group of the data writing modules and a group of the data reading modules are integrated on a first optical drive 3, and the first optical drive 3 has two groups;
the ferry mechanism is used for controlling the two optical discs 2 to move around respective centers in the clockwise direction or the anticlockwise direction, so that the optical discs 2 move between the data reading module and the data writing module, and the data reading, writing and transmitting efficiency is improved.
Example 4
Taking the example of two groups of data recording media supported on the ferry mechanism as an example, the invention discloses a data transmission method, which comprises the following steps:
s1, two ends of a ferry mechanism respectively support a group of data recording media, namely a first data recording medium and a second data recording medium, and the first data recording medium is moved to a data writing module, and the second data recording medium is moved to a data reading module at the same time, and the data writing module writes data into the first data recording medium; the data writing module is a first optical drive 3, and the data reading module is a second optical drive 4;
specifically, two optical disks 2 are placed in a double-disk box, the box cover 22 is opened, and the double-disk box is installed on a rotating tray 11, wherein a positioning column 12 on the rotating tray 11 is matched with a positioning hole 10 on a lower cover 8; the elastic buckles 14 on the upper cover 7 and the lower cover 8 press the double-disc cartridge on the rotating tray 11;
then, the box cover 22 is covered, the first control circuit group 5 controls the driving motor 16 to work, the pinion gear group 36 rotates to drive the rotating tray 11 to rotate, and when the home sensor baffle 37 blocks the home sensor 42, the double-disk box and the optical drive are successfully reset; the dual disc cartridge toggles the first medium storage cartridge position sensor 25 and the second medium storage cartridge position sensor 26, and sends the reset success signal to the first control circuit group 5 and the second control circuit group 6, and after the first control circuit group 5 and the second control circuit group 6 receive the signal, the first optical drive 3 and the second optical drive 4 are controlled to work respectively.
S2, the ferry mechanism carries out position exchange between the data writing module and the data reading module for two groups of data recording media, the data writing module writes data into the second data recording media, and the data reading module reads the data in the first data recording media;
specifically, the first control circuit group 5 has absolute control over the rotation tray 11, and can be realized only by the first control circuit group 5 when the rotation of the dual disk cartridge is required.
The first control circuit group 5 sends a tray-off command to the first optical drive 3, and when the tray-off command is completed by the first optical drive 3, the optical drive sensing blocking plate 38 on the first optical drive 3 blocks the first optical drive position sensor 27; meanwhile, the second optical drive signal electromagnet 45 is controlled to drive the connecting rod blocking piece 46 to attract for 1 time, the second optical drive position control sensor 29 sends a pulse signal to the second control circuit group 6, the second control circuit group 6 controls the second optical drive 4 to complete the disc-releasing action after receiving the signal, when the second optical drive 4 completes the disc-releasing action, the optical drive sensing blocking piece plate 38 on the second optical drive 4 can push the sensing linkage rod blocking piece 39 to block the second optical drive position sensor 28, and the second optical drive position sensor 28 sends the signal that the second optical drive 4 completes the disc-releasing action to the first control circuit group 5; at this time, the first control circuit group 5 controls the operation of the unhooking electromagnet 30, the unhooking electromagnet 30 drives the unhooking pull rod 31, the unhooking pull rod 31 pulls the unhooking connecting rod 32, the unhooking connecting rod 32 pulls the hook connecting plate 33 and the limit hook 34 to enable the limit hook 34 to withdraw from the limit plate 35, at this time, the driving motor 16 operates, the pinion group 36 rotates to drive the rotating tray 11 and the double-disc cartridge to rotate, after the encoder detects that the rotating tray rotates 180 degrees in place, the limit hook 34 resets to lock the rotating tray 11, the double-disc cartridge touches the first medium storage cartridge position sensor 25 and the second medium storage cartridge position sensor 26, the first medium storage cartridge position sensor 25 and the second medium storage cartridge position sensor 26 send signals to the first control circuit group 5 and the second control circuit group 6, after the first control circuit group 5 and the second control circuit group 6 receive the signals, respectively controlling the first optical drive 3 and the second optical drive 4 to work.
Preferably, the step S2 is followed by:
and S3, the ferry mechanism moves the first data recording medium to a data erasing module, and simultaneously moves the second data recording medium to a data reading module, the data erasing module erases data on the first data recording medium, and the data reading module reads data in the second data recording medium, so that data can be written and read continuously by two groups of data recording media, and the data transmission efficiency is improved.
Those skilled in the art will appreciate that step S3 is not required, and steps S1 and S2 can also achieve transmission and physical isolation of data.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A data transmission device is characterized by comprising a data recording medium, a data writing module, a data reading module and a ferry mechanism, wherein,
the data writing module is used for writing data into the data recording medium;
the data reading module is used for reading data in the data recording medium;
the data writing module and the data reading module are in no electric connection and no signal transmission;
the data writing module and the data reading module are respectively provided with N groups, wherein N is more than or equal to 1; the data writing module and the data reading module are alternately and crossly arranged on a circumference which takes the center of the ferry mechanism as the circle center;
the ferrying mechanism is used for supporting the data recording medium and driving the data recording medium to move between the data writing module and the data reading module.
2. The data transmission device according to claim 1, further comprising a data erasing module, wherein the data erasing module is configured to erase the data in the data recording medium after the data reading module reads the data in the data recording medium, and the data recording medium is an optical disc, a magnetic disc, or a magnetic tape.
3. A data transmission device according to claim 2, wherein the data recording medium is an optical disc (2), a set of the data writing modules and a set of the data reading modules are integrated on a first optical disc drive (3), and at least two sets of the first optical disc drive (3) are provided.
4. A data transfer device according to claim 2, characterized in that the data recording medium is an optical disc (2), the data writing module is a first optical disc drive (3), and the data reading module is a second optical disc drive (4).
5. A data transmission device according to claim 4, wherein the optical disc (2) is a rewritable optical disc, the data erasing module is a first optical disc drive (3), the first optical disc drive (3) is further configured to erase recorded data on the optical disc (2), and the first optical disc drive (3) and the second optical disc drive (4) are equidistantly arranged on a circumference with the center of the ferry mechanism as a center.
6. The data transmission device according to claim 4, wherein the optical disc (2) is an erasable optical disc, the data erasing module is a third optical disc, the third optical disc has N sets, N is greater than or equal to 1, the third optical disc is used for erasing the recorded data on the optical disc (2), the first optical disc (3), the second optical disc (4) and the third optical disc are uniformly arranged on a circumference with the center of the ferry mechanism as a circle center, and the second optical disc (4) is arranged between the first optical disc (3) and the third optical disc;
the data transmission device further comprises a first control circuit group (5) and a second control circuit group (6), wherein the first control circuit group (5) is connected with the first optical drive (3), and the first control circuit group (5) is used for controlling the working state of the first optical drive (3); the second control circuit group (6) is connected with the second optical drive (4), and the second control circuit group (6) is used for controlling the working state of the second optical drive (4);
the data transmission device further comprises a first optical drive position sensor (27) and a second optical drive position sensor (28), the first optical drive position sensor (27) is arranged corresponding to the first optical drive (3), the second optical drive position sensor (28) is arranged corresponding to the second optical drive (4), the first optical drive position sensor (27) is used for detecting whether the first optical drive (3) is in a disk-off state and feeding back a detection result to the first control circuit group (5), and the second optical drive position sensor (28) is used for detecting whether the second optical drive (4) is in a disk-off state and feeding back the detection result to the first control circuit group (5);
the first control circuit group (5) is respectively connected with the first optical drive position sensor (27), the second optical drive position sensor (28) and the ferry mechanism, and the first control circuit group (5) is further used for controlling the ferry mechanism to act according to detection signals of the first optical drive position sensor (27) and the second optical drive position sensor (28);
the ferry mechanism is also used for supporting a medium storage box (1) of the data recording medium, and the medium storage box (1) is positioned above the ferry mechanism;
the medium storage box (1) comprises an upper cover (7) and a lower cover (8), a cavity for accommodating the optical disc (2) is formed between the upper cover (7) and the lower cover (8), and 2N optical discs (2) are provided, wherein N is more than or equal to 1;
a pressing plate (23) is arranged between the upper cover (7) and the optical disc (2), an opening is arranged on the lower cover (8), and the data writing module writes data into the optical disc (2) through the opening; the data reading module reads data in the optical disc (2) through the opening;
the ferry mechanism enables the optical disk (2) to move between the data reading module and the data writing module through the carrying medium storage box (1);
the ferry mechanism comprises a rotating tray (11), a driving motor (16) and a support (17), wherein the rotating tray (11) and the driving motor (16) are both arranged on the support (17), and the driving motor (16) is used for driving the rotating tray (11) to rotate;
the device further comprises a first media storage cassette position sensor (25) and a second media storage cassette position sensor (26), said first media storage cassette position sensor (25) being arranged in correspondence with said first optical drive (3), said second media storage cassette position sensor (26) being arranged in correspondence with said second optical drive (4), said first media storage cassette position sensor (25) and said second media storage cassette position sensor (26) both being adapted to detect whether said media storage cassette (1) reaches a respective position of said first optical drive (3) and said second optical drive (4).
7. A data transmission method, comprising the steps of:
s1, simultaneously supporting 2N groups of data recording media by a ferry mechanism, wherein N is more than or equal to 1, the N groups of data recording media are first data recording media, the rest are second data recording media, moving the first data recording media to a data writing module, simultaneously moving the second data recording media to a data reading module, and writing data into the first data recording media by the data writing module;
s2, the ferry mechanism supports the data recording medium to move between the data writing module and the data reading module, the data writing module writes data into the second data recording medium, and meanwhile the data reading module reads the data in the first data recording medium.
8. A data transmission method according to claim 7, wherein a set of said data writing modules and a set of said data reading modules are integrated on a first optical disc drive (3), and said first optical disc drive (3) has at least two sets.
9. A data transmission method according to claim 7, wherein the data writing module is a first optical drive (3) and the data reading module is a second optical drive (4).
10. The data transmission method according to claim 8 or 9, wherein the step S2 is further followed by:
and S3, the ferrying mechanism moves the first data recording medium to a data erasing module, and simultaneously moves the second data recording medium to the data reading module, the data erasing module erases data on the first data recording medium, and the data reading module reads data in the second data recording medium.
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