CN109389998B - Data ferrying device and method - Google Patents
Data ferrying device and method Download PDFInfo
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- CN109389998B CN109389998B CN201811246204.8A CN201811246204A CN109389998B CN 109389998 B CN109389998 B CN 109389998B CN 201811246204 A CN201811246204 A CN 201811246204A CN 109389998 B CN109389998 B CN 109389998B
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 345
- 230000007704 transition Effects 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims description 45
- 230000001960 triggered effect Effects 0.000 claims description 5
- 239000003086 colorant Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 10
- 239000002699 waste material Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000012937 correction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012795 verification Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- ZXQYGBMAQZUVMI-GCMPRSNUSA-N gamma-cyhalothrin Chemical compound CC1(C)[C@@H](\C=C(/Cl)C(F)(F)F)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-GCMPRSNUSA-N 0.000 description 1
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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
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/0401—Details
- G11B17/0402—Servo control
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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
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/0401—Details
- G11B17/0405—Closing mechanism, e.g. door
- G11B17/0407—Closing mechanism, e.g. door controlling the loading of the record carrier
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Abstract
The invention discloses a data ferrying device and method, and belongs to the technical field of data ferrying. The data ferrying device comprises an outer network part, an inner network part and a ferrying bridge; the outer net part and the inner net part comprise a disc frame and a driving device, the disc frame is rotatably arranged on a rotating shaft, and a plurality of accommodating grooves for accommodating optical discs are radially formed in the disc frame by taking the rotating shafts connected with the disc frame as the center; the driving device is used for transferring a signal switch used for sensing whether the optical disc exists or not and arranged on the optical disc transition bridge, the signal switch comprises an inner network signal switch and an outer network signal switch, the inner network signal switch is in communication connection with an inner network part, and the outer network signal switch is in communication connection with an outer network part. The method uses the data ferrying device. The invention sets the rotatable tray, and the tray is provided with a plurality of containing grooves for containing optical discs in a radial shape by taking the rotating shaft as the center, wherein the side walls of the containing grooves can provide reliable and stable support for the optical discs placed in the containing grooves.
Description
Technical Field
The invention relates to the technical field of data ferry, in particular to a data ferry device and a data ferry method.
Background
The data exchange between computer systems is carried out by adopting a mobile storage medium (such as a U disk and the like), so that the data ferrying has great convenience, but meanwhile, the secret information is hidden in the mobile storage medium due to random data exchange of various mobile storage medium access units or private mechanism internal networks, and when an external network is to be reconnected, the secret information is transferred out by Trojan horse and the like, so that the information is leaked inadvertently, namely so-called ferrying attack is caused. Therefore, ensuring absolute unidirectional transfer of information is an important measure to avoid information leakage.
An optical disc, particularly a write-once optical disc, which can also be used as a removable storage medium, is an ideal carrier for accomplishing unidirectional transfer of information. And the optical disk drive and the matched arrangement are matched, so that the optical disk drive can become the cheap and reliable optimal choice for the current data security ferry.
The optical disk data ferrying system is a relatively high-safety network information exchange system, and can realize almost complete physical isolation compared with a safety net gate and an optical gate. The solution is that independent disc writing operation, namely outer network recording and inner network disc reading are adopted, different controllers respectively control a recording CD driver to carry out disc writing operation and a read-only CD driver to carry out disc reading operation, and unidirectional transmission of inner network information and outer network information is realized on the basis of no sharing. The existing optical disk ferry machine adopts a frame type structure and a modularized design of a mature optical disk library, mainly comprises a mechanical arm, a driver and an optical disk box, and realizes unidirectional information transmission between a secret-related inner network and a non-secret-related outer network through optical disk transportation.
The existing optical disc read-write device adopts a rotary cantilever to realize the transfer of the optical disc. The CD read-write device includes empty CD box, CD-RW, CD-ROM and CD box, and forms rectangular array, and the manipulator moves between them. The movement of the optical disc depends on the operation of the robot arm: the whole device has large volume, heavy weight and high manufacturing cost. Moreover, the ferry machine needs to be placed in an office place, rather than an unmanned machine room like an optical disc library, and personnel walk and table and chair shake to easily cause errors in measuring the posture of a cantilever and even drop discs, so that stability is affected.
Therefore, it is desirable to provide a data ferrying device and method for solving the above problems.
Disclosure of Invention
An objective of the present invention is to provide a data ferrying device, which solves the problem that the optical disc is easy to drop when moving between the recording optical disc drive and the read-only optical disc drive.
Another objective of the present invention is to provide a data ferrying method, so as to realize stable transmission of the optical disc when the optical disc moves between the recording optical disc drive and the read-only optical disc drive.
To achieve the purpose, the invention adopts the following technical scheme:
the data ferrying device comprises an outer net part, an inner net part and a ferrying bridge, wherein one end of the ferrying bridge is communicated with the outer net part, and the other end of the ferrying bridge is communicated with the inner net part; the device also comprises a recording CD-ROM drive and a read-only CD-ROM drive, wherein one of the external network part and the internal network part is provided with the recording CD-ROM drive, and the other is provided with the read-only CD-ROM drive;
the outer net part and the inner net part comprise a disc frame and a driving device for placing optical discs, the disc frame is rotatably arranged on a rotating shaft, the disc frame is radially provided with a plurality of accommodating grooves for placing the optical discs by taking the rotating shaft connected with the disc frame as the center, and the plurality of accommodating grooves can be opposite to the inlets and outlets of the ferry bridge, the burning CD driver and the read-only CD driver; the driving device is used for transferring the optical disc between the accommodating groove of the outer net part and the ferry bridge and between the accommodating groove of the inner net part and the ferry bridge;
the transition bridge is provided with a signal switch for sensing whether the optical disc exists or not, the signal switch comprises an intranet signal switch and an extranet signal switch, the intranet signal switch is in communication connection with the intranet part, and the extranet signal switch is in communication connection with the extranet part.
By arranging the rotatable tray frame, and arranging a plurality of accommodating grooves for accommodating optical discs radially by taking the rotating shaft as the center, the side walls of the accommodating grooves can provide reliable and stable support for the optical discs placed in the accommodating grooves, so that the problem that in the prior ferry device, in order to increase the accommodating capacity of the optical discs, the thickness of the tray is thinner, usually only a height of a few millimeters, and the problem that the optical discs slide out is most likely to be caused when the placing precision of a mechanical arm is lower is avoided;
by arranging the tray with only one degree of freedom, when different accommodating grooves are required to be communicated with the corresponding CD access opening, the corresponding CD access opening of the CD-RW or the corresponding CD access opening of the CD-ROM, the automatic correction of the tray position in the rotating process can be realized by arranging the angle encoder or the positioning device such as the pedometer on the rotating shaft connected with the tray, and the stability and the accuracy of long-time operation of the CD in the tray are ensured; the transfer of the optical disk in different horizontal trays through the mechanical arm in the prior art is avoided, and the mechanical arm is required to finish actions such as lifting, rotating and grabbing, so that the degree of freedom is more, the correction is difficult, and the accuracy and the stability of the optical disk transferred by the mechanical arm cannot be guaranteed for a long time.
Preferably, the ferry bridge is provided with two rows of transporting rollers oppositely for clamping the optical disc.
Preferably, the ferry bridge further comprises a top plate above the transporting roller and a bottom plate below the transporting roller.
Preferably, when the outer network part is provided with the optical disc drive, the intranet signal switch is arranged at one end of the ferry bridge, which is close to the outer network part, and the outer network signal switch is arranged at the middle position of the ferry bridge;
when the inner network part is provided with the CD-ROM, the outer network signal switch is arranged at one end of the ferry bridge, which is close to the inner network part, and the inner network signal switch is arranged at the middle position of the ferry bridge.
Preferably, the entrance of the recording optical drive and the entrance of the read-only optical drive are both provided with roller sets, and the roller sets comprise two opposite entrance rollers and exit rollers which are arranged in parallel and are used for clamping the optical disc.
Preferably, the data ferrying device further includes an auxiliary optical disc, where the auxiliary optical disc and the read-only optical disc are both disposed in the inner network portion or the outer network portion.
Preferably, an observation window is arranged on the ferry bridge, and different colors are marked on the auxiliary optical disk and the optical disk.
Preferably, the outer mesh part and the inner mesh part are both provided with electromagnetic shielding devices.
Preferably, the data ferrying device comprises a plurality of the recording optical drives and a plurality of the read-only optical drives, and the section of the disc rack is circular; the plurality of CD-RW drivers are arranged on the radial extension line of one of the disc frames, and the plurality of CD-RW drivers are arranged on the radial extension line of the other disc frame.
The method for carrying out data ferry by using the data ferry device comprises the steps of ferrying the outer network data to the inner network part, and comprises the following steps:
s1, an external network server monitors a designated folder by adopting a strategy triggered periodically or manually;
s2, when a recording task is found, the external network server controls a driving device of a disc frame of an external network part to act, and a blank disc or a disc with residual capacity of the disc frame in the external network part is transferred to the recording CD-ROM to record data;
s3, after the recording is completed, the external network server controls the driving device of the external network part to transfer the recorded optical disc to a disc frame of the external network part; judging whether the recording is successful or not, and executing step S4 when the optical disk is successful; when the optical disc recording fails, executing the step S2;
s4, an external network signal switch detects whether an optical disc exists in a transition bridge, and if the optical disc does not exist, a driving device of the external network part transfers the optical disc successfully recorded to the transition bridge;
s5, an intranet signal switch senses the optical disc and sends a signal to an intranet server, and the intranet server controls a driving device of an intranet part to transfer the optical disc successfully recorded to the ferry bridge;
s6, the ferry bridge transfers the optical disk to the disk rack of the inner network part, and then the disk rack of the inner network part is transferred to a read-only optical drive for data reading;
and S7, after the data reading is completed, the intranet server controls the driving device of the intranet part to transfer the read optical disc to the disc frame of the intranet part.
The invention has the beneficial effects that:
1) By arranging the rotatable tray frame, and arranging a plurality of accommodating grooves for accommodating optical discs radially by taking the rotating shaft as the center, the side walls of the accommodating grooves can provide reliable and stable support for the optical discs placed in the accommodating grooves, so that the problem that in the prior ferry device, in order to increase the accommodating capacity of the optical discs, the thickness of the tray is thinner, usually only a height of a few millimeters, and the problem that the optical discs slide out is most likely to be caused when the placing precision of a mechanical arm is lower is avoided;
2) By arranging the tray with only one degree of freedom, when different accommodating grooves are required to be communicated with the corresponding CD access opening, the corresponding CD access opening of the CD-RW or the corresponding CD access opening of the CD-ROM, the automatic correction of the tray position in the rotating process can be realized by arranging the angle encoder or the positioning device such as the pedometer on the rotating shaft connected with the tray, and the stability and the accuracy of long-time operation of the CD in the tray are ensured; the transfer of the optical disc in different horizontal trays through the mechanical arm in the prior art is avoided, and the mechanical arm is required to finish actions such as lifting, rotating, grabbing and the like, so that the degree of freedom is more, the correction is difficult, and the accuracy and the stability of the transfer of the optical disc by the mechanical arm cannot be ensured for a long time;
3) By arranging the auxiliary CD which can not be read and written, the data ferrying device can or can not be read successfully, so that a fault-tolerant mechanism is established, namely, when abnormal conditions such as reading errors and the like occur in the processes of burning and reading the CD, the data ferrying device can perform corresponding processing and recovery, the accurate transmission of information is ensured, and the time of manual intervention is greatly reduced;
4) The data ferrying device is characterized in that an inner network part and an outer network part are arranged, an inner network server and an outer network server are respectively arranged in different shells, electromagnetic shielding equipment is arranged in the inner network part and the outer network part, and the possibility of no electromagnetic leakage between the inner network part and the outer network part is ensured; meanwhile, the optical disk is used as a medium without electromagnetic effect and cannot be used as a medium for electromagnetic signal ferrying;
5) The inner network part and the outer network part only transfer the optical disc through the ferry bridge, and no connection exists between an outer network signal switch on the ferry bridge and the inner network signal switch, and the optical disc is only used for sensing whether the optical disc exists on the ferry bridge, so that the possibility of carrying out data ferry between the inner network part and the outer network part through the outer network signal switch on the ferry bridge and the inner network signal switch is eliminated.
6) The ferry bridge is arranged outside the outer net part and the inner net part and is provided with an observation window, and meanwhile, the unreadable auxiliary optical disk is provided with a special color to distinguish the unreadable auxiliary optical disk from the readable and writable optical disk, and meanwhile, the auxiliary optical disk with 'task success' and the auxiliary optical disk with 'task failure' are distinguished.
7) By arranging a plurality of recording CD-ROM drives and a plurality of read-only CD-ROM drives in the data ferrying device, a plurality of ferrying tasks can be simultaneously executed by the plurality of recording CD-ROM drives and the plurality of read-only CD-ROM drives, and ferrying efficiency is greatly improved.
Drawings
FIG. 1 is a schematic diagram of a data ferrying device according to a first embodiment of the present invention;
FIG. 2 is a flow chart of a data ferrying method according to a first embodiment of the present invention;
FIG. 3 is a schematic diagram of a data ferrying device according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a data ferrying device in a third embodiment of the present invention.
In the figure:
1. an inner net part; 11. an intranet casing; 111. an intranet CD entrance; 12. an intranet server; 13. an intranet signal switch;
2. an outer net section; 21. an outer mesh shell; 211. an outer net CD entrance; 22. an extranet server; 23. an external network signal switch;
3. a transition bridge; 31. a transport roller; 4. a read-only optical drive; 5. recording CD-ROM; 6. a tray rack; 61. a receiving groove; 7. a rotating shaft; 8. roller set.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings.
Example 1
As shown in fig. 1, this embodiment discloses a data ferrying device, which is used for unidirectional ferrying of data, and is suitable for ferrying data from an internal network to an external network, and is also suitable for ferrying data from the external network to the internal network, and in this embodiment, data is ferried from the external network to the internal network.
The basic principle of the data ferrying device is that when the external network server 22 receives the recording task and instructs the recording optical disk drive 5 to record the information to be recorded to a blank optical disk or an optical disk with a residual capacity, after the recording task is completed, the recorded optical disk is transferred to the read-only optical disk drive 4 connected with the internal network server 12 by the transfer device to read data, and the read data is placed in a file folder appointed to be downloaded by the internal network server 12 for use by an internal network user.
Specifically, the data ferry device comprises an outer net part 2, an inner net part 1 and a ferry bridge 3, wherein the three parts are distributed on the same straight line, one end of the ferry bridge 3 is communicated with the outer net part 2, and the other end is communicated with the inner net part 1; the outer net part 2 comprises an outer net shell 21, two outer net optical disc inlets and outlets 211 are arranged on the outer net shell 21, one outer net optical disc inlet and outlet 211 is communicated with the ferry bridge 3, an outer net server 22, a recording optical disc drive 5, an outer net disc frame, an outer net driving device and an outer net power supply are arranged in the outer net shell 21, the outer net server 22, the recording optical disc drive 5, the disc frame and the driving device are all connected with the outer net power supply, and the recording optical disc drive 5 and the outer net driving device are all in communication connection with the outer net server 22; the intranet part 1 comprises an intranet shell 11, two intranet disc inlets and outlets 111 are arranged on the intranet shell 11, one intranet disc inlet and outlet 111 is communicated with the ferry bridge 3, an intranet server 12, a read-only CD-ROM drive 4, an intranet disc rack, an intranet driving device and an intranet power supply are arranged in the intranet shell 11, the intranet server 12, the read-only CD-ROM drive 4, the intranet disc rack and the intranet driving device are all connected with the intranet power supply, and the read-only CD-ROM drive 4 and the intranet driving device are all in communication connection with the intranet server 12.
The outer net disc frame and the inner net disc frame have the same structure, the disc frames 6 are rotatably arranged on the rotating shafts 7, the disc frames 6 are radially provided with a plurality of containing grooves 61 for containing optical discs by taking the respectively connected rotating shafts 7 as the center, and the plurality of containing grooves 61 can be opposite to the ferry bridge 3; the side wall of the accommodating groove 61 can provide reliable and stable support for the optical disc placed in the accommodating groove 61, of course, the side wall of the accommodating groove 61 can also be a vertical railing, the height of the railing can reach several centimeters, the optical disc is vertically inserted between the vertical railings, the optical disc can be ensured to be stably placed in the accommodating groove 61, and the quality of the disc rack 6 can be reduced. In order to increase the accommodating capacity of the optical disc, the thickness of the horizontal tray used for accommodating the optical disc in the conventional ferry device is thinner, usually only a height of a few millimeters, and the optical disc is very likely to slide out when the mechanical arm is slightly inclined or the placement precision of the mechanical arm is lower. In addition, the ferrying device needs to calibrate the related device each time when the optical disc is transferred, for example, in this embodiment, the tray frame 6 has only one degree of freedom, and when different accommodating grooves 61 need to be relatively communicated with the corresponding optical disc entrance, the entrance of the recording optical disc drive 5 or the entrance of the read-only optical disc drive 4 according to the instruction of the intranet server 12, the automatic calibration position of the tray frame 6 in the rotation process can be realized by setting the positioning device such as the angle encoder or the pedometer on the rotating shaft 7 connected with the tray frame 6, so that the stability and the accuracy of long-time operation of the optical disc in the tray frame 6 are ensured, and the problems that in the prior art, the transfer of the optical disc in different horizontal trays is realized by the mechanical arm are avoided, and the mechanical arm needs to complete the actions such as lifting, rotating and grabbing, and has more degrees of freedom, and calibration difficulty, so that the accuracy and stability of the transfer of the optical disc by the mechanical arm cannot be ensured for a long time. Further, the width of the entrance of the accommodating groove 61 may be larger than the thickness of the optical disc, so that when the optical disc enters the accommodating groove 61, even if the optical disc is slightly inclined or swayed, the optical disc still can enter the accommodating groove 61, and the optical disc is placed with low precision requirement.
The section of the disc holder 6 is circular, and the recording optical disc drive 5 and the read-only optical disc drive 4 are distributed on a radial extension line of the disc holder 6. Therefore, the tray frame 6 can be driven to rotate only by the rotating shaft 7, the corresponding accommodating groove 61 can be opposite to and communicated with the ferry bridge 3, and the device is simple in structure, convenient to operate and high in accuracy.
The driving device is used for transferring the optical disc between the accommodating groove 61 of the outer net and the ferry bridge 3, and between the accommodating groove 61 of the inner net and the ferry bridge 3. Wherein the rotating shaft 7 of the inner net part 1 is driven by a first inner net motor in the inner net driving device. The rotary shaft 7 of the outer wire section 2 is driven by a first outer wire motor in the outer wire drive. And, the ferry bridge 3 is relatively provided with two rows of conveying rollers 31, and the distance between the two rows of conveying rollers 31 is equivalent to the thickness of the optical disc. The second intranet motor and the third intranet motor in the intranet driving device are respectively connected with two rows of conveying rollers 31 in a rotating mode, and therefore the optical disc is conveyed to the outer net part 2 from the intranet part 1 or the optical disc is conveyed to the intranet part 1 from the outer net part 2. In addition, the driving device further comprises a shift lever mechanism for shifting the optical disc out of the disc holder 6 and selectively shifting the optical disc into the optical disc drive 5 or the optical disc read-only drive 4. In order to reduce the driving force of the driving lever mechanism and the complexity of the driving lever mechanism, the recording optical disc drive 5 and the read-only optical disc drive 4 both adopt suction type optical disc drives. Further, the entrance of the CD-ROM drive 5 and the entrance of the CD-ROM drive 4 are respectively provided with a roller set 8, the roller set 8 comprises two opposite entrance rollers arranged in parallel, and the distance between the two entrance rollers is equivalent to the thickness of the optical disc, and the two entrance rollers are used for clamping the optical disc and transferring the optical disc. The optical disc can be driven to enter or be ejected from the optical disc drive 5 or the optical disc drive 4 by arranging the roller set 8 which rotates relatively, so that the poking force of the poking rod mechanism can be further reduced. In other embodiments, the lever mechanism may be changed to other pushing devices such as a paddle mechanism, which only needs to provide a pushing force to the optical disc.
Specifically, in this embodiment, the driving device of the inner network portion 1 includes a fourth inner network motor and a fifth inner network motor connected to the roller set 8 at the entrance of the cd-rom drive 4, and the driving device of the outer network portion 2 includes a second outer network motor and a third outer network motor connected to the roller set 8 at the entrance of the cd-rom drive 5. The roller sets 8 of the inner net part 1 and the outer net part 2 are provided with two motors for driving the rollers, one motor fails, and the other motor still can ensure that the roller sets smoothly transfer the optical disk. In another embodiment, the inner net part 1 and the outer net part 2 are both provided with a motor, one roller wheel in the roller set 8 is driven by the motor to rotate, the other roller wheel in the roller set 8 is connected with a spring frame, and the spring frame is arranged on one side of the roller wheel and drives the roller wheel connected with the spring frame to approach to the roller wheel connected with the motor. The roller set in the embodiment only depends on one motor to divide the two rollers into the driving roller and the driven roller, the driving roller can realize that the roller set transfers the optical disc under the drive of the driven roller, compared with the embodiment of the two motors, the cost is lower, the driving roller and the driven roller can always clamp the optical disc through the arrangement of the spring frame, the optical disc is transferred, the phenomenon that the optical disc cannot be transferred due to the fact that the two rollers oppositely arranged in the roller set slide between the two rollers due to overlarge gaps is avoided, meanwhile, the phenomenon that the optical disc cannot pass through the roller set due to overlarge gaps is avoided, and the optical disc cannot be transferred is avoided.
The transition bridge 3 further includes a top plate above the transport rollers 31 and a bottom plate below the transport rollers 31, so that the left, right, upper and lower sides of the optical disc can be blocked, thereby preventing the optical disc from being discharged from above the two rows of transport rollers 31 or from sliding down the two rows of transport rollers 31 during transport.
And be provided with the signal switch that is used for responding to whether the CD exists on the transition bridge 3, signal switch includes intranet signal switch 13 and outer net signal switch 23, intranet signal switch 13 and intranet portion 1 communication connection, outer net signal switch 23 and outer net portion 2 communication connection. In this embodiment, the intranet signal switch 13 is disposed at one end of the transition bridge 3 near the outer network portion 2, so that the intranet signal switch 13 can detect that the optical disc in the outer network portion 2 enters the transition bridge 3 at the first time, so as to send a signal to the intranet server 12 as soon as possible, and then the intranet server 12 controls the intranet driving device to drive the transportation roller 31 to transport the optical disc, and simultaneously, the accommodating groove 61 in the intranet disc frame, in which the optical disc is not placed, is opposite to the transition bridge 3. The outer network signal switch 23 is arranged in the middle of the transition bridge 3, so that the outer network signal switch 23 can accurately detect whether an optical disc exists on the transition bridge 3, and if the optical disc does not exist, the outer network part 2 can directly transfer the recorded optical disc to the inner network part 1 through the transition bridge 3 after finishing the optical disc recording; if there is an optical disc, the outer network part 2 temporarily stops the transportation of the optical disc after the recording, and the optical disc after the recording is finished moves again until the outer network signal switch 23 can not detect the optical disc, so that the interference between the optical disc in the ferry bridge 3 and the optical disc after the recording is finished is avoided, and the damage of the data ferry device is avoided. The intranet signal switch 13 and the extranet signal switch 23 in this embodiment are not physically connected, so that the possibility of data leakage between the intranet server 12 and the extranet server 22 is eliminated. The intranet signal switch 13 and the extranet signal switch 23 may be photoelectric switches or pressure sensors.
Further, the data ferrying device is provided with electromagnetic shielding devices on the inner net part 1 and the outer net part 2, and the electromagnetic shielding devices protect signals in the inner net part 1 and the outer net part 2 from being leaked or not detected, so that other information is unlikely to be exchanged between the two.
In addition, the optical disc is inevitably error-proof during the recording and reading processes, and in this embodiment, the data ferrying device also has a fault-tolerant mechanism. Specifically, the data ferrying device includes an auxiliary optical disc that is not readable and writable, the auxiliary optical disc includes two optical discs marked with "task success" and "task failure", and the auxiliary optical disc is disposed in the accommodating groove 61 of the intranet disc frame. The auxiliary optical disc needs to be transferred from the inner network part 1 to the outer network part 2 or from the outer network part 2 to the inner network part 1 through the transition bridge 3. The auxiliary optical disc is preferably marked with a special color, that is, the color of the auxiliary optical disc is different from that of the readable and writable optical disc, and the colors of the auxiliary optical disc with successful task and the auxiliary optical disc with failed task are different, accordingly, the transition bridge 3 is provided with a visual observation window or visual structure, that is, an operator can observe the movement of the auxiliary optical disc and the burning optical disc in the transition bridge 3 externally, so as to judge whether the reading task is about to be performed and whether the reading task is successful or not.
As shown in fig. 2, this embodiment discloses a specific working method for data ferrying device to ferry data from an external network to an internal network, which includes the following steps:
s1, an external network server 22 monitors a specified folder by adopting a strategy triggered periodically or manually;
s2, when the recording task is found, the external network server 22 controls the external network driving device to act, and transfers a blank optical disc or an optical disc with residual capacity of the disc frame 6 in the external network part 2 to the recording CD-ROM 5 for data recording;
s3, after the recording is completed, the external network server 22 controls the external network driving device to transfer the recorded optical disc to the external network disc frame, meanwhile judges whether the recording is successful or not, and when the optical disc is successful, the step S4 is executed; when the optical disc recording fails, executing the step S2;
s4, an external network signal switch 23 detects whether an optical disc exists in the transition bridge 3, if no optical disc exists, the external network driving device transfers the optical disc which is successfully recorded to the transition bridge 3, and if the optical disc exists, the optical disc which is completely recorded needs to wait until the optical disc does not exist in the transition bridge 3;
s5, an intranet signal switch 13 senses the optical disc and sends a signal to an intranet server 12, and the intranet server 12 controls an intranet driving device to transfer the optical disc successfully recorded to the ferry bridge 3;
s6, transferring the optical disc to a disc frame 6 of the inner network part 1 by the ferry bridge 3, and then transferring the optical disc to a read-only optical disc drive 4 by the disc frame 6 of the inner network part 1 for data reading;
and S7, after the data reading is completed, the intranet server 12 controls the intranet driving device to transfer the read optical disc to the intranet disc frame.
Further, step S7 further includes determining the capacity of the optical disc, and when the optical disc has been sealed or the remaining capacity of the optical disc is smaller than a preset threshold, marking the optical disc as a waste optical disc, and transferring the waste optical disc to the accommodating groove 61 of the inner network disc frame. When the administrator logs in the management system of the intranet server 12, all the waste optical discs can be withdrawn through the intranet optical disc access 111 which is not communicated with the ferry bridge 3, and a new blank optical disc is inserted.
Step S7, after the reading is finished, judging whether the reading is successful or not, and executing step S100 when the CD is successfully read; when the optical disc fails to be read, executing step S200;
s100, the intranet server 12 controls the intranet driving device to transfer the auxiliary optical disc marked with the task success into the recording optical drive 5 through the transition bridge 3, the recording optical drive 5 spits the auxiliary optical disc out after receiving the information of the task success, and the step S1 is continuously executed, and meanwhile, the intranet server 12 stores the read content into a folder appointed by the intranet server 12 for a user of the intranet server 12 to use;
s200, the intranet server 12 controls the intranet driving device to transfer the auxiliary optical disc marked with the task failure into the CD-RW driver 5 through the transition bridge 3, and after the CD-RW driver 5 receives the information of the task failure, the auxiliary optical disc is spitted out, and the step S2 is continuously executed.
The auxiliary optical disc may be transferred to the inner network portion 1 together when the outer network portion 2 transfers the recorded optical disc to the inner network portion 1, and of course, the auxiliary optical disc may be transferred to the inner network portion 1 again at any time as long as no interference occurs with other operations of the data ferry device.
Further, step S2 further includes generating a file digest for verification, such as MD5 information, when recording the data; correspondingly, in step S6, before the read-only optical drive 4 reads the data in the optical disc, the comparison of the file digests should be performed, and if the comparison is successful, the optical disc is read; if the comparison fails, step S200 is also required to be performed.
By arranging the auxiliary CD which can not be read and written, the data ferrying device can or can not be read successfully, thereby establishing a fault-tolerant mechanism, namely when abnormal conditions such as reading errors and the like occur in the processes of burning and reading the CD, the data ferrying device can perform corresponding processing and recovery, thereby ensuring accurate information transmission and greatly reducing the time of manual intervention.
Example two
As shown in fig. 3, the data ferrying device in this embodiment is basically the same as the first embodiment described above, and the difference between the two is that the present embodiment ferries data from the internal network to the external network. The read-only optical disc drive 4 is disposed in the outer network portion 2 and is in communication connection with the outer network server 22 and the outer network power supply, and correspondingly, the recording optical disc drive 5 is disposed in the inner network portion 1 and is in communication connection with the inner network server 12 and the inner network power supply. The external network signal switch 23 is provided at one end of the bridge 3 near the internal network portion 1, and the internal network signal switch 13 is provided at the intermediate position of the bridge 3.
Wherein the auxiliary optical disc is arranged in the disc holder 6 of the outer net part 2.
The embodiment discloses a method for ferrying data from an internal network to an external network by the data ferrying device, which comprises the following steps:
s10, monitoring a designated folder by an intranet server 12 by adopting a strategy triggered periodically or manually;
s20, when a recording task is found, the intranet server 12 controls a driving device of the disk frame 6 of the intranet part 1 to act, and a blank optical disk or an optical disk with residual capacity of the disk frame 6 in the intranet part 1 is transferred to the recording CD-ROM 5 for data recording;
s30, after the recording is completed, the intranet server 12 controls a driving device of the intranet part 1 to transfer the recorded optical disc to a disc frame 6 of the intranet part 1, judges whether the recording is successful or not, and executes the step S40 when the recording of the optical disc is successful; when the optical disc recording fails, executing step S20;
s40, an intranet signal switch 13 detects whether an optical disc exists in the ferry bridge 3, and if the optical disc does not exist, a driving device of the intranet part 1 transfers the successfully recorded optical disc to the ferry bridge 3;
s50, an outer network signal switch 23 senses the optical disc and sends a signal to an outer network server 22, and the outer network server 22 controls a driving device of an outer network part 2 to transfer the optical disc successfully recorded to a ferry bridge 3;
s60, transferring the optical disk to a disk rack 6 of the outer net part 1 by the ferry bridge 3, and then transferring the optical disk to a read-only optical disk drive 4 by the disk rack 6 of the outer net part 1 for data reading;
after the data is read, the external network server 22 controls the driving device of the external network 2 to transfer the read optical disc to the disc frame 6 of the external network 2.
Further, step S70 further includes determining the capacity of the optical disc, and when the optical disc has been sealed or the remaining capacity of the optical disc is smaller than a preset threshold, marking the optical disc as a waste optical disc, and transferring the waste optical disc to the accommodating groove 61 of the outer net rack. When the administrator logs in to the management system of the extranet server 22, all the waste optical discs can be withdrawn through the extranet optical disc entrance/exit 211 which is not communicated with the ferry bridge 3, and a new blank optical disc is inserted.
Step S70, after the reading is completed, further comprises judging whether the reading is successful or not, and executing step S100 when the optical disc is successfully read; when the optical disc fails to be read, executing step S200;
s100, the external network server 22 controls the external network driving device to transfer the auxiliary optical disc marked with the 'task success' to the recording optical drive 5 through the transition bridge 3, the recording optical drive 5 spits out the auxiliary optical disc after receiving the information of the task success, and the step S1 is continuously executed, and meanwhile, the external network server 22 stores the read content into a folder appointed by the internal network server 12;
s200, the extranet server 22 controls the extranet driving device to transfer the auxiliary optical disc marked with the task failure to the recording optical drive 5 through the transition bridge 3, and after the recording optical drive 5 receives the information of the task failure, the auxiliary optical disc is spitted out, and the step S2 is continuously executed.
Further, step S20 further includes generating a file digest for verification, such as MD5 information, when recording the data; correspondingly, in step S60, before the read-only optical disc drive 4 reads the data in the optical disc, the comparison of the file digests should be performed, and if the comparison is successful, the optical disc is read; if the comparison fails, step S200 is also required to be performed.
Example III
As shown in fig. 4, the third data ferrying device of this embodiment is basically the same as the first embodiment, and the difference between the first and second embodiments is that the data ferrying device includes a plurality of recording optical drives 5 and a plurality of read-only optical drives 4, and the top surface of the disc holder 6 is circular; when the recording optical drives 5 are in communication connection with the outer network server 22, the plurality of recording optical drives 5 are distributed on the radial extension line of the disc frame 6 in the outer network part 2, and the plurality of read-only optical drives 4 are distributed on the radial extension line of the disc frame 6 in the inner network part 1; when the optical disk drives 5 are in communication connection with the intranet server 12, the optical disk drives 5 are distributed on the radial extension line of the disk frame 6 in the intranet part 1, and the optical disk drives 4 are distributed on the radial extension line of the outer network disk frame. The arrangement enables a plurality of CD-RW drivers 5 to execute the ferrying task at the same time, thereby greatly improving ferrying efficiency.
Correspondingly, the optical disc drives 5 are provided with marks, such as the first optical disc drive 5, the second optical disc drive 5, the third optical disc drive 5, and the like, and can be marked as an optical disc drive 5, a CD-ROM drive 5, and the like. When the first optical disk drive 5 performs optical disk recording, the first optical disk drive 5 generates the mark information of the first optical disk drive 5, and when the read-only optical disk drive 4 reads the optical disk to be recorded, the first optical disk drive 5 can read the optical disk or the second optical disk drive 5 can read the optical disk. The auxiliary optical discs include an auxiliary optical disc with "first task success" and an auxiliary optical disc with "first task failure", and an auxiliary optical disc with "second task success". Or an auxiliary disc of "a task succeeded", an auxiliary disc of "a task failed", etc.
The embodiment also discloses a data ferrying method, which carries out ferrying of the outer network data to the inner network part 1 through the data ferrying device, and comprises the following steps:
s1, an external network server 22 monitors a specified folder by adopting a strategy triggered periodically or manually;
s2, when a recording task is found, the external network server 22 controls a driving device of a disc frame 6 of the external network part 2 to act, and transfers a blank disc or a disc with residual capacity of the disc frame 6 in the external network part 2 to a recording optical drive 5 in an idle state for data recording, if the first recording optical drive 5 is in the idle state, the first recording optical drive 5 performs data recording, and meanwhile, the first recording optical drive 5 generates marking information of the first recording optical drive 5 when performing optical disc recording;
s3, after the recording is completed, the outer network server 22 controls a driving device of the outer network part 2 to transfer the recorded optical disc to a disc frame 6 of the outer network part 2, judges whether the recording is successful or not, and executes the step S4 when the optical disc is successful in recording; when the optical disc recording fails, executing the step S2;
s4, an outer network signal switch 23 detects whether an optical disc exists in the ferry bridge 3, and if no optical disc exists, a driving device of the outer network part 2 transfers the optical disc successfully recorded to the ferry bridge 3;
s5, an intranet signal switch 13 senses the optical disc and sends a signal to an intranet server 12, the intranet server 12 controls a driving device of the intranet part 1 to transfer the successfully recorded optical disc to a read-only optical drive 4 in an idle state for data reading, if the first read-only optical drive 4 is in the idle state, the first read-only optical drive 4 reads the data, wherein the first read-only optical drive 4 needs to read the mark information in the optical disc, namely, whether the first recording optical drive 5 records or the second recording optical drive records;
s6, after the data reading is completed, the intranet server 12 controls a driving device of the intranet part 1 to transfer the read optical disc to a disc frame 6 of the intranet part 1;
further, step S6 further includes determining the capacity of the optical disc, and when the optical disc has been sealed or the remaining capacity of the optical disc is smaller than a preset threshold, marking the optical disc as a waste optical disc, and transferring the waste optical disc to the accommodating groove 61 of the inner network disc frame. When the administrator logs in the management system of the intranet server 12, all the waste optical discs can be withdrawn through the intranet optical disc access 111 which is not communicated with the ferry bridge 3, and a new blank optical disc is inserted.
Step S6, after the reading is finished, judging whether the reading is successful or not, and executing step S100 when the optical disc is successfully read; when the optical disc fails to be read, executing step S200;
s100, the intranet server 12 controls the intranet driving device to transfer the auxiliary optical disc marked with the 'first task success' to the first recording optical drive 5 through the transition bridge 3, the first recording optical drive 5 spits the auxiliary optical disc after receiving the task success information, and the step S1 is continuously executed, and meanwhile, the intranet server 12 stores the read content into a folder appointed by the intranet server 12 for a user of the intranet server 12 to use;
s200, the intranet server 12 controls the intranet driving device to transfer the auxiliary optical disc marked with the first task failure to the first CD-RW driver 5 through the transition bridge 3, and after the first CD-RW driver 5 receives the task failure information, the auxiliary optical disc is ejected, and the step S2 is continuously executed.
Further, step S2 further includes generating a file digest for verification, such as MD5 information, when recording the data; correspondingly, in step S5, before the read-only optical disc drive 4 reads the data in the optical disc, the comparison of the file digests should be performed, and if the comparison is successful, the optical disc is read; if the comparison fails, step S200 is also required to be performed.
Of course, when the optical disc drives 5 are in communication connection with the intranet server 12, the optical disc drives 5 are distributed on the radial extension line of the disc frame 6 in the intranet part 1, and the optical disc drives 4 are distributed on the radial extension line of the disc frame 6 in the extranet part 2. And the read-only optical disc drive 4 is in communication connection with the external network server 22, and after the recording optical disc drive 5 is in communication connection with the internal network server 12, the driving device can complete the ferrying of the internal network data to the external network data, and the corresponding working method is similar to the ferrying of the external network data to the internal network data, so that the description is omitted herein.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (8)
1. The data ferrying device is characterized by comprising an outer net part (2), an inner net part (1) and a ferrying bridge (3), wherein one end of the ferrying bridge (3) is communicated with the outer net part (2), and the other end of the ferrying bridge is communicated with the inner net part (1); the optical disk drive (5) and the read-only optical disk drive (4) are also included, one of the external network part (2) and the internal network part (1) is provided with the optical disk drive (5), and the other is provided with the read-only optical disk drive (4);
the outer net part (2) and the inner net part (1) both comprise a disc frame (6) for placing optical discs and a driving device, the disc frame (6) is rotatably arranged on a rotating shaft (7), the disc frame (6) is radially provided with a plurality of containing grooves (61) for placing the optical discs by taking the respective rotating shaft (7) as the center, and the containing grooves (61) can be opposite to the inlets and outlets of the ferry bridge (3), the burning CD driver (5) and the read-only CD driver (4); the driving device is used for transferring the optical disc between the accommodating groove (61) of the outer net part (2) and the ferrying bridge (3) and between the accommodating groove (61) of the inner net part (1) and the ferrying bridge (3);
the ferry bridge (3) is provided with a signal switch for sensing whether the optical disc exists or not, the signal switch comprises an intranet signal switch (13) and an extranet signal switch (23), the intranet signal switch (13) is in communication connection with the intranet part (1), and the extranet signal switch (23) is in communication connection with the extranet part (2);
the ferry bridge (3) is oppositely provided with two rows of conveying rollers (31) for clamping the optical disk;
the ferry bridge (3) further comprises a top plate positioned above the transport roller (31) and a bottom plate positioned below the transport roller (31);
the side wall of the accommodating groove (61) can provide support for the side wall of the optical disk, the side wall of the accommodating groove (61) is a vertical railing, and the optical disk is vertically inserted between the vertical railings.
2. The data ferry device according to claim 1, wherein when the outer network part (2) is provided with the optical disc drive (5), the inner network signal switch (13) is arranged at one end of the ferry bridge (3) close to the outer network part (2), and the outer network signal switch (23) is arranged at the middle position of the ferry bridge (3);
when the inner network part (1) is provided with the CD-ROM (5), the outer network signal switch (23) is arranged at one end of the ferry bridge (3) close to the inner network part (1), and the inner network signal switch (13) is arranged at the middle position of the ferry bridge (3).
3. The data ferrying device according to claim 1, wherein the entrance of the recording optical disc drive (5) and the entrance of the read-only optical disc drive (4) are both provided with a roller set (8), and the roller set (8) comprises two opposite entrance rollers arranged in parallel for clamping the optical disc.
4. The data ferrying device according to claim 1, characterized in that the data ferrying device further comprises an auxiliary optical disc, both the auxiliary optical disc and the read-only optical disc drive (4) being arranged in the inner network part (1) or the outer network part (2).
5. Data ferrying apparatus according to claim 4, characterized in that the ferrying bridge (3) is provided with a viewing window, the auxiliary optical disc and the optical disc being marked with different colours.
6. Data ferrying apparatus according to claim 1, characterized in that the outer net part (2) and the inner net part (1) are both provided with electromagnetic shielding devices.
7. The data ferrying device according to claim 1, characterized in that it comprises a plurality of said optical disk drives (5) and a plurality of said optical disk drives (4), and in that the cross section of the disk holder (6) is circular; the plurality of CD-RW drivers (5) are arranged on the radial extension line of one of the disk racks (6), and the plurality of CD-ROM drivers (4) are arranged on the radial extension line of the other disk rack (6).
8. A method of data ferrying using the data ferrying device of any of claims 1-7, comprising the step of ferrying the extranet data to the intranet (1), comprising:
s1, an external network server (22) monitors a designated folder by adopting a strategy triggered periodically or manually;
s2, when a recording task is found, the external network server (22) controls a driving device of a disc frame (6) of the external network part (2) to act, and a blank disc or a disc with residual capacity of the disc frame (6) in the external network part (2) is transferred to the recording CD-ROM (5) for data recording; judging whether the recording is successful or not, and executing step S4 when the optical disk is successful; when the optical disc recording fails, executing the step S2;
s3, after the recording is completed, the external network server (22) controls a driving device of the external network part (2) to transfer the recorded optical disc to a disc frame (6) of the external network part (2);
s4, an external network signal switch (23) detects whether an optical disc exists in the transition bridge (3), and if the optical disc does not exist, a driving device of the external network part (2) transfers the optical disc successfully recorded to the transition bridge (3);
s5, an intranet signal switch (13) senses an optical disc and sends a signal to an intranet server (12), and the intranet server (12) controls a driving device of an intranet part (1) to transfer the optical disc successfully recorded to the ferry bridge (3);
s6, the ferry bridge (3) transfers the optical disc to the disc frame (6) of the inner network part (1), and then the disc frame (6) of the inner network part (1) transfers the optical disc to a read-only optical disc drive (4) for data reading;
and S7, after the data reading is completed, the intranet server (12) controls the driving device of the intranet part (1) to transfer the read optical disc to the disc frame (6) of the intranet part (1).
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| CN113921044B (en) * | 2020-07-08 | 2023-02-17 | 苏州互盟信息存储技术有限公司 | Inter-network physical isolation data device and system |
| CN114205159B (en) * | 2021-12-10 | 2024-04-16 | 北京睿云信安科技有限公司 | Cross-network optical turntable isolation ferrying machine and cross-network automatic data ferrying method |
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