CN113921044B - Inter-network physical isolation data device and system - Google Patents
Inter-network physical isolation data device and system Download PDFInfo
- Publication number
- CN113921044B CN113921044B CN202010653053.9A CN202010653053A CN113921044B CN 113921044 B CN113921044 B CN 113921044B CN 202010653053 A CN202010653053 A CN 202010653053A CN 113921044 B CN113921044 B CN 113921044B
- Authority
- CN
- China
- Prior art keywords
- contact
- data
- optical
- motor
- shaped sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Optical Recording Or Reproduction (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The invention provides a device and a system for physically isolating data between networks. The internetwork physical isolation data device comprises: a base; the optical drive spindle motor is arranged on the base and is provided with a first motor contact, a second motor contact and an optical drive spindle; a first optical reading device having an external network contact, and the external network contact is in contact with the first motor contact, thereby recording the external network data onto the optical disc; the second optical reading device is provided with an inner network contact which is in contact with the second motor contact; when the outer net contact contacts with the first motor contact, the inner net contact is separated from the second motor contact, the projection of the second optical reading device perpendicular to the direction of the optical disk is staggered with the optical disk, when the inner net contact contacts with the second motor contact, the outer net contact is separated from the first motor contact, and the projection of the first optical reading device perpendicular to the direction of the optical disk is staggered with the optical disk. The scheme can realize the safety of the network exchange process and improve the ferry efficiency.
Description
Technical Field
The invention relates to the technical field of data ferry, in particular to a device and a system for physically isolating data between networks.
Background
In data communication, the networks with different security levels can be between an internal network and an external network, or between a public network and a private network, and between a secure network and a non-secure network, and in order to realize and ensure the security of the network data exchange process, the most secure way is physical separation, so as to realize the physical isolation between the networks with different levels.
Current data storage media primarily include optical disks, magnetic disks, and magnetic tape. Optical discs are often used to store important data as a stable storage carrier. In the process of storing data, the data stored in the external network is firstly recorded into a blank optical disc, and then the data stored in the recorded optical disc is stored into the internal 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, and the transfer process is often completed by a manipulator with a complicated structure and a large volume.
In the prior ferry device, each ferry process at least needs to pass through the loading and unloading processes of the optical disk, and the process is time-consuming, so that the efficiency of data ferry is not high. Especially, in the application scene of frequently carrying out small file migration, the efficiency is particularly remarkable.
For example, a complete ferry process of the conventional ferry device is as follows: the manipulator moves to the blank CD holding device and picks up a blank CD; the manipulator moves to the external network CD driver, the external network CD driver opens the tray, the manipulator puts down the CD, and the external network CD driver closes the tray; the outer net CD driver finishes burning and pops out the tray, the mechanical hand picks up the CD, the outer net CD driver closes the tray; the manipulator moves to the intranet CD-ROM, the intranet CD-ROM opens the tray, the manipulator puts down the CD, and the intranet CD-ROM closes the tray; the inner network CD driver finishes reading and ejects out the tray, the mechanical hand grabs the CD, and the inner network CD driver closes the tray; the manipulator moves to the optical disc recycling device and puts the optical disc into the optical disc recycling device.
Disclosure of Invention
The invention aims to provide a novel device to solve the technical problem that the ferry device in the prior art is low in ferry efficiency.
A further object of the invention is to reduce the size and simplify the structure, while achieving and ensuring the security of the network data exchange process.
In particular, the present invention provides an internetwork physical isolation data device, comprising:
a base;
the optical drive spindle motor is arranged on the base and is provided with a first motor contact point positioned on a first side of the optical drive spindle motor, a second motor contact point positioned on a second side of the optical drive spindle motor, wherein the second side of the optical drive spindle motor is opposite to the first side of the optical drive spindle motor, and an optical drive spindle for clamping a central hole of an optical disk thereon;
a first optical reading device arranged in the radial direction of the optical disc and connected with an external network server with external network data, wherein the first optical reading device is provided with an external network contact and is arranged to move relative to the optical disc drive spindle motor so that the external network contact is contacted with the first motor contact, and the external network data is recorded on the optical disc, and comprises data to be ferry and verification data;
a second optical reading device, disposed on an opposite side of the radial direction of the optical disc from the first optical reading device, and connected to the intranet server, the second optical reading device having an intranet contact and being disposed to be capable of moving relative to the optical disc drive spindle motor, so that the intranet contact is in contact with the second motor contact, thereby reading the data recorded with the extranet data in the optical disc;
when the outer net contact contacts with the first motor contact, the inner net contact is separated from the second motor contact, the projection of the second optical reading device perpendicular to the direction of the optical disk is staggered with the optical disk, and when the inner net contact contacts with the second motor contact, the outer net contact is separated from the first motor contact, and the projection of the first optical reading device perpendicular to the direction of the optical disk is staggered with the optical disk.
Optionally, the inter-network physical isolation data apparatus further includes:
the ferry trolley is arranged on the base, an opening part for enabling the CD-ROM main shaft to extend out of the ferry trolley is formed in the middle area of the ferry trolley, two end areas of the ferry trolley are located in the radial direction of the CD, and the two end areas are respectively a first end area located on one side of the middle area and a second end area located on the other side of the middle area;
the first optical reading device is located at the first end region, and the second optical reading device is located at the second end region.
Optionally, the inter-network physical isolation data apparatus further includes:
the first driving motor is arranged on the base and used for outputting a first driving force;
the first sliding rail is arranged on the base and extends along the radial direction of the optical disk, and the first sliding rail is matched with the base of the ferry trolley;
the ferry trolley is driven by the first driving motor to move on the first slide rail in a reciprocating manner, so that the first optical reading device and the second optical reading device are driven to move in a reciprocating manner along the radial direction of the optical disc.
Optionally, the optical drive spindle motor is fixedly arranged on the base;
the ferry trolley is arranged to drive the first optical reading device and the second optical reading device to move towards the direction close to the first motor contact along the radial direction of the optical disc when the first optical reading device is to record the external network data until the external network contact is contacted with the first motor contact;
optionally, the ferry cart is configured to drive the first optical reading device and the second optical reading device to move in a direction close to the second motor contact along the radial direction of the optical disc when the second optical reading device is to read the extranet data, until the extranet contact is in contact with the second motor contact.
Optionally, the inter-network physical isolation data apparatus further includes:
the first sensing blocking piece is arranged at the bottom of the first end area of the ferry trolley and moves back and forth along with the ferry trolley;
a first U-shaped sensor and a second U-shaped sensor which are arranged along the radial direction of the optical disc at intervals and are both positioned on a first side of the base, wherein the first side of the base is the same side as the first end area, the first U-shaped sensor and the second U-shaped sensor are both in communication connection with the extranet server, and the second U-shaped sensor is closer to the optical drive spindle motor than the first U-shaped sensor;
when the first U-shaped sensor is blocked by the first sensing blocking piece, the inner mesh contact is in contact with the second motor contact; when the first sensing separation blade blocks the second U-shaped sensor, the outer net contact is in contact with the first motor contact.
Optionally, the inter-network physical isolation data apparatus further includes:
the second sensing blocking piece is arranged at the bottom of the second end area of the ferry trolley and moves back and forth along with the ferry trolley;
a third U-shaped sensor and a fourth U-shaped sensor, which are spaced apart from each other along the radial direction of the optical disc, are both located on a second side of the base, the second side of the base is the same side as the second end region, the third U-shaped sensor and the fourth U-shaped sensor are both in communication connection with the intranet server, and the third U-shaped sensor is closer to the optical drive spindle motor than the fourth U-shaped sensor;
when the second sensing separation blade blocks the third U-shaped sensor, the inner network contact is in contact with the second motor contact; when the fourth U-shaped sensor is blocked by the second sensing blocking piece, the outer net contact is contacted with the first motor contact;
optionally, when the first sensing barrier blocks the first U-shaped sensor and/or the second sensing barrier blocks the third U-shaped sensor, the inner mesh contact contacts the second motor contact;
when the first sensing blocking piece blocks the second U-shaped sensor and/or the second sensing blocking piece blocks the fourth U-shaped sensor, the outer net contact is in contact with the first motor contact;
optionally, the first driving motor is controlled to stop working when the second sensing barrier blocks the third U-shaped sensor or the fourth U-shaped sensor;
optionally, the first driving motor is controlled to stop working when the first sensing barrier blocks the second U-shaped sensor at least twice continuously;
optionally, when the second sensing blocking piece blocks the third U-shaped sensor at least twice, the ferry trolley moves controllably until the outer network contact contacts the first motor contact, so as to record the outer network data onto the optical disc again.
Optionally, the inter-network physical isolation data apparatus further includes:
the second driving motor is arranged on the base and used for outputting a second driving force;
the second sliding rail is arranged on the ferry trolley and extends along the radial direction of the optical disk, and the second sliding rail is matched with a base of the CD-ROM main shaft motor;
the optical drive spindle motor is configured to reciprocate on the second slide rail under the driving of the second driving motor so as to move along the second slide rail in a direction close to the first optical reading device or close to the second optical reading device.
Optionally, the ferry trolley is fixedly arranged on the base;
when the first optical reading device is to record the data of the external network, the optical drive spindle motor is arranged to move along the second slide rail to the direction close to the first optical reading device until the optical drive spindle motor moves to the contact point of the external network to be contacted with the first motor contact point;
optionally, the optical disc drive spindle motor is configured to move along the second sliding rail toward a direction close to the second optical pickup device when the second optical pickup device is to read the extranet data, until the second optical pickup device moves to the intranet contact and the second motor contact.
Particularly, the present invention also provides an internetwork physical isolation data system, including:
an extranet server having extranet data;
as described above, the internetwork physical isolation data device is configured to record the external network data onto an optical disc when an external network contact is in contact with a first motor contact, and read data in the optical disc recorded with the external network data when an internal network contact is in contact with a second motor contact, where the external network data includes data to be ferry and verification data thereof;
and the intranet server is used for storing ferry data read by the internetwork physical isolation data device and check data of the ferry data.
Optionally, the intranet server is configured to calculate check data of the ferry data, compare the calculated check data with the stored check data, and send information that the intranet server successfully stores the data if the calculated check data is consistent with the stored check data.
According to the scheme of the embodiment of the invention, a first optical reading device and a second optical reading device are arranged on two sides of a main shaft motor of an optical drive, a first motor contact is arranged on a first side of the main shaft motor of the optical drive, a second motor contact is arranged on a second side of the main shaft motor of the optical drive, an external network contact is arranged on the first optical reading device, an internal network contact is arranged on the second optical reading device, when the first motor contact is contacted with the external network contact, external network data are recorded on an optical disk, and when the second motor contact is contacted with the internal network contact, the external network data recorded on the optical disk are read to an internal network server. Therefore, when data ferry is carried out, the functions of outer network recording and inner network reading can be realized only by enabling the first optical reading device and the second optical reading device to be close to or far away from the optical drive spindle motor, the optical disc is not required to be loaded and unloaded frequently in the process, the optical disc is only required to be buckled on the optical drive spindle, and the optical disc is not required to be unloaded before the data is read by the inner network, so that the situation that the whole ferry process is completed by frequently loading and unloading the optical disc is avoided, the outer network data is recorded on the optical disc, the outer network data of the optical disc is read on the inner network, and the ferry efficiency is remarkably improved.
In addition, the physical isolation data between networks not only greatly reduces the volume, but also simplifies the structure because the internal network reading optical drive and the external network burning optical drive share the optical drive spindle motor. Meanwhile, the internetwork physical isolation data is realized, the safety of the network data exchange process is ensured, and the physical isolation among networks of different levels can be realized.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 shows a schematic block diagram of an inter-network physically isolated data apparatus according to an embodiment of the present invention;
FIG. 2 shows a schematic exploded view of an internetwork physically isolated data device according to one embodiment of the invention;
FIG. 3 illustrates a schematic side view of an inter-grid physically isolated data device according to one embodiment of the present invention, showing a state diagram where an outer grid contact is in contact with a first motor contact;
FIG. 4 illustrates another schematic side view of an inter-grid physically isolated data device according to one embodiment of the present invention, showing a state diagram where an internal grid contact is in contact with a second motor contact;
FIG. 5 shows a further schematic side view of an inter-net physically isolated data arrangement according to an embodiment of the invention, showing a state diagram when not recording and reading;
FIG. 6 is a partial block diagram of an inter-network physical isolation data device according to an embodiment of the present invention, showing a state diagram when recording and reading are not performed;
FIG. 7 shows a schematic structure of an internetwork physical isolation data arrangement according to another embodiment of the present invention;
in the figure: 1-base, 2-optical drive spindle motor, 21-first motor contact, 22-second motor contact, 23-optical drive spindle, 3-first optical reading device, 31-outer net contact, 32-first optical reading head, 33-first control board, 4-second optical reading device, 41-inner net contact, 42-second optical reading head, 43-second control board, 5-optical disk, 51-center hole, 6-ferry dolly, 61-opening, 7-third control board, 8-first driving motor, 9-first slide rail, 10-first sensing baffle, 11-second sensing baffle, 12-first U-shaped sensor, 13-second U-shaped sensor, 14-third U-shaped sensor, 15-fourth U-shaped sensor, 16-second driving motor, 17-second slide rail.
Detailed Description
Fig. 1 is a schematic block diagram illustrating an inter-network physical isolation data device according to an embodiment of the present invention. Fig. 2 shows a schematic exploded view of an internetwork physically isolated data device according to one embodiment of the present invention. As shown in fig. 1 and fig. 2, the inter-network physical isolation data apparatus includes a base 1, a spindle motor 2 of an optical disc drive, a first optical pickup 3, and a second optical pickup 4. The optical disc drive spindle motor 2 is disposed on the base 1, and has a first motor contact 21 located on a first side of the optical disc drive spindle motor 2, a second motor contact 22 located on a second side of the optical disc drive spindle motor 2 opposite to the first side, and an optical disc drive spindle 23 for fastening the central hole 51 of the optical disc 5 thereon. The first optical pickup device 3 is disposed in a radial direction of the optical disc 5 and connected to an extranet server having extranet data, and the first optical pickup device 3 has an extranet contact 31 and is disposed to be movable relative to the optical disc drive spindle motor 2 so that the extranet contact 31 is in contact with the first motor contact 21 to record the extranet data onto the optical disc 5, the extranet data including data to be ferry and verification data. The second optical pickup device 4 is disposed on the opposite side of the optical disc 5 from the first optical pickup device 3 in the radial direction and connected to the intranet server, and the second optical pickup device 4 has an intranet contact 41 and is disposed to be movable relative to the optical disc drive spindle motor 2 so that the intranet contact 41 contacts with the second motor contact 22, thereby reading data recorded on the optical disc 5 with the extranet data. When the outer network contact 31 contacts the first motor contact 21, the inner network contact 41 and the second motor contact 22 are in a separated state, and the projection of the second optical reading device 4 in the direction perpendicular to the optical disc 5 is staggered from the optical disc 5, and when the inner network contact 41 contacts the second motor contact 22, the outer network contact 31 and the first motor contact 21 are in a separated state, and the projection of the first optical reading device 3 in the direction perpendicular to the optical disc 5 is staggered from the optical disc 5.
According to the solution of the embodiment of the present invention, a first optical reading device 3 and a second optical reading device 4 are disposed on two sides of a spindle motor 2 of an optical drive, a first motor contact 21 is disposed on a first side of the spindle motor 2 of the optical drive, a second motor contact 22 is disposed on a second side of the spindle motor 2 of the optical drive, an extranet contact 31 is disposed on the first optical reading device 3, an intranet contact 41 is disposed on the second optical reading device 4, when the first motor contact 21 contacts the extranet contact 31, extranet data is recorded on an optical disc 5, and when the second motor contact 22 contacts the intranet contact 41, the extranet data recorded on the optical disc 5 is read to an intranet server. Therefore, when data ferry is carried out, the functions of outer network recording and inner network reading can be realized only by enabling the first optical reading device 3 and the second optical reading device 4 to be close to or far away from the optical drive spindle motor 2, the optical disc 5 does not need to be frequently loaded and unloaded in the process, the optical disc 5 does not need to be unloaded before the data is read in the inner network after the optical disc 5 is clamped on the optical drive spindle 23, therefore, the situation that the optical disc 5 is frequently loaded and unloaded to complete the whole ferry process, namely, the outer network data is recorded on the optical disc 5, the outer network data of the optical disc 5 is read on the inner network is avoided, and the ferry efficiency is obviously improved.
The first optical pickup device 3 and the second optical pickup device 4 are two devices with completely independent functions, which are respectively disposed at two ends of the optical disc 5 in the radial direction, and are equivalent to the first optical pickup device 3 and the second optical pickup device 4 sharing one optical drive spindle motor 2. The first optical pickup device 3 and the optical drive spindle motor 2 form a complete optical drive, i.e. two important parts of the external network recording optical drive, and have a recording function. The second optical pickup device 4 and the optical disc drive spindle motor 2 constitute another complete optical disc drive, i.e. two important parts of the optical disc drive are read by the intranet, and have a reading function.
In the embodiment shown in fig. 1 and 2, the internetwork physical isolation data device further comprises a ferry trolley 6 arranged on the base 1. The middle area of the ferry trolley 6 is provided with an opening 61 for the optical drive spindle 23 to extend out, the two end areas of the ferry trolley 6 are positioned in the radial direction of the optical disk 5, and the two end areas are respectively a first end area positioned on one side of the middle area and a second end area positioned on the other side of the middle area. Wherein the first optical pickup 3 is located at a first end region and the second optical pickup 4 is located at a second end region.
The first optical pickup device 3 includes a first optical pickup head 32 and a first control board 33, the first optical pickup head 32 is used for recording the optical disc 5, a control circuit is disposed on the first control board 33, and the first optical pickup head 32 is electrically connected to the first control board 33 and located at the upper end of the first control board 33. The first control plate 33 is located in the first end region of the ferry cart 6, and the extranet contact 31 is located on the side of the first control plate 33 facing the opening 61.
The second optical pickup device 4 includes a second optical pickup head 42 and a second control board 43, the second optical pickup head 42 is used for reading data in the optical disc 5, a control circuit is disposed on the second control board 43, and the second optical pickup head 42 is electrically connected to the second control board 43 and is located at an upper end of the second control board 43. The second control plate 43 is located in the second end region of the ferry trolley 6, and the inner contact 41 is located on the side of the second control plate 43 facing the opening 61.
The distance between the first optical pickup 3 and the second optical pickup 4 should be large enough so that the first optical pickup head 32 and the second optical pickup head 42 are not located on the data side of the optical disc 5 at the same time. More specifically, the first optical pickup device 3 and the second optical pickup device 4 have mutual exclusion property for the data optical disc 5 located therebetween, and the mutual exclusion property can clearly ensure the physical space isolation between the inner network pickup optical drive and the outer network recording optical drive.
The internetwork physical isolation data device also comprises a third control board 7, a first driving motor 8 and a first slide rail 9. The first driving motor 8 is disposed on the base 1 and electrically connected to the third control plate 7 for outputting a first driving force. Among them, the third control board 7 can be controlled only by the intranet server and cannot be controlled by the extranet server. The first slide rail 9 is disposed on the base 1 and extends in a radial direction of the optical disc 5. The first driving motor 8 drives the ferry trolley 6 to reciprocate on the first slide rail 9, so as to drive the first optical reading device 3 and the second optical reading device 4 arranged on the ferry trolley 6 to reciprocate along the radial direction of the optical disc 5. Wherein, the CD-ROM drive spindle motor 2 is fixedly arranged on the base 1.
Fig. 3 shows a schematic side view of an inter-grid physically isolated data device according to an embodiment of the invention, showing a state diagram where the outer grid contact 31 is in contact with the first motor contact 21. FIG. 4 shows another schematic side view of the physically isolated data device between nets according to one embodiment of the present invention, wherein a state diagram is shown in which the inner net contact 41 is in contact with the second motor contact 22. FIG. 5 shows a further schematic side view of an inter-net physically isolated data device according to an embodiment of the invention, showing a state diagram when not recording and reading.
The ferry trolley 6 may experience three states as shown in fig. 3-5 during its reciprocal movement along the first slide rail 9. When the first optical pickup device 3 is to record the outer network data, the ferry cart 6 drives the first optical pickup device 3 and the second optical pickup device 4 to move toward the first motor contact 21 along the radial direction of the optical disc 5 until the outer network contact 31 shown in fig. 3 contacts the first motor contact 21, that is, the first optical pickup head 32 is located in the data recording area of the optical disc 5, and the second optical pickup head 42 is located outside the data recording area of the optical disc 5. When the second optical pickup device 4 is to read the extranet data, the ferry cart 6 drives the first optical pickup device 3 and the second optical pickup device 4 to move toward the direction close to the second motor contact 22 along the radial direction of the optical disc 5 until the inner network contact 41 shown in fig. 4 contacts the second motor contact 22, that is, at this time, the second optical pickup 42 is located in the data recording area of the optical disc 5, and the first optical pickup 32 is located outside the data recording area of the optical disc 5. In the initial state, when the first optical pickup device 3 finishes recording or the second optical pickup device 4 finishes reading, the optical disc 5 is at the middle position as shown in fig. 5, and at this time, the first optical pickup head 32 and the second optical pickup head 42 are both outside the data recording area of the optical disc 5.
The present application determines whether the outer mesh contact 31 is in contact with the first motor contact 21 and whether the inner mesh contact 41 is in contact with the second motor contact 22 by the following means. Fig. 6 is a schematic diagram illustrating a partial structure of an inter-network physical isolation data device according to an embodiment of the present invention, wherein a state diagram of the device when recording and reading are not performed is shown. As shown in fig. 6, the data device for physical isolation between networks further includes a first sensing barrier 10, a second sensing barrier 11, a first U-shaped sensor 12, a second U-shaped sensor 13, a third U-shaped sensor 14, and a fourth U-shaped sensor 15. The first sensing baffle 10 is arranged at the bottom of the first end area of the ferry trolley 6 and moves back and forth along with the ferry trolley 6. The second sensing baffle 11 is arranged at the bottom of the second end area of the ferry trolley 6 and also moves back and forth along with the ferry trolley 6. The first U-shaped sensor 12 and the second U-shaped sensor 13 are arranged spaced apart in the radial direction of the optical disc 5 and are both located on a first side of the base 1, which is the same side as the first end region of the base 1. The second U-shaped sensor 13 is closer to the optical drive spindle motor 2 than the first U-shaped sensor 12. The first U-shaped sensor 12 and the second U-shaped sensor 13 are both in communication connection with an extranet server. The third U-shaped sensor 14 and the fourth U-shaped sensor 15 are spaced apart from each other in the radial direction of the optical disc 5, and are both located on the second side of the base 1, the second side of the base 1 is the same side as the second end region, the third U-shaped sensor 14 is closer to the optical disc drive spindle motor 2 than the fourth U-shaped sensor 15, and the third U-shaped sensor 14 and the fourth U-shaped sensor 15 are both in communication connection with the intranet server. When the first sensing flap 10 blocks the first U-shaped sensor 12 and/or the second sensing flap 11 blocks the third U-shaped sensor 14, it is determined that the inner mesh contact 41 is in contact with the second motor contact 22. When the first sensing flap 10 blocks the second U-shaped sensor 13 and/or the second sensing flap 11 blocks the fourth U-shaped sensor 15, it is determined that the outer net contact 31 is in contact with the first motor contact 21. The first driving motor 8 is controlled to stop working when the second sensing flap 11 blocks the third U-shaped sensor 14 or the fourth U-shaped sensor 15. In one embodiment, the second sensor flap 11 necessarily blocks the fourth U-shaped sensor 15 when the first sensor flap 10 blocks the second U-shaped sensor 13. While the first sensing flap 10 is blocking the first U-shaped sensor 12, the second sensing flap 11 is necessarily blocking the third U-shaped sensor 14.
In one embodiment, when the first sensor barrier 10 blocks the second U-shaped sensor 13 twice in succession, the intranet server sends a command to the third control board 7 to stop the operation of the first drive motor 8, and the first drive motor 8 is controlled to stop the operation after receiving the command. That is, the first sensing barrier 10 blocks the second U-shaped sensor 13 twice, which indicates that the first optical pickup device 3 fails to record the data of the external network, and the intranet server needs to be notified to stop the ferry task, that is, the first driving motor 8 needs to stop working at this time, and after the first driving motor 8 stops working, the user can be notified to replace the optical disc 5. In other embodiments, the number of times the first sensing barrier 10 is blocked may be three, four or more, for example.
In one embodiment, the ferry car 6 is controllably moved while the second sensor barrier 11 blocks the third U-shaped sensor 14 twice in succession until the outer net contact 31 contacts the first motor contact 21, thereby rewriting the outer net data onto the optical disc 5. That is, when the second sensor barrier 11 blocks the third U-shaped sensor 14 twice, it indicates that the second optical reading device 4 fails to read the extranet data, and the first optical reading device 3 needs to write the extranet data again. In other embodiments, the number of times the second sensing flap 11 is blocked may be, for example, three, four or more times.
The working process of the internetwork physical isolation data device is as follows:
1. the ferry trolley 6 is in the state shown in fig. 5, and a blank optical disc 5 is loaded on the optical drive spindle motor 2 of the ferry trolley 6 through a manual or automatic loading device.
2. The ferry trolley 6 drives the first optical reading device 3 to move towards the direction close to the first motor contact 21, so that the external network contact 31 of the first optical reading device 3 is in contact with the first motor contact 21, and at this time, the ferry trolley 6 is in a state shown in fig. 3.
3. Outer net recording: the external network server records the data to be ferred and the verification data thereof on the optical disc 5.
4. And after the recording is finished, sending tray information. The drive control circuit of the outer net recording optical drive controls the first sensing blocking piece 10 to probe out to the second U-shaped sensor 13, the recording is successful and then probes out once, and the recording is failed and then probes out twice. Here "pop out" means that the first sensor flap 10 blocks the second U-shaped sensor 13.
5. The ferry cart 6 drives the second optical reading device 4 to move towards the direction close to the second motor contact 22, so that the external network contact 31 of the first optical reading device 3 is separated from the first motor contact 21, and the internal network contact 41 of the second optical reading device 4 is in contact with the second motor contact 22, and the ferry cart 6 reaches the state shown in fig. 4 through the state shown in fig. 3.
6. Reading and checking the intranet, and sending tray information: and the intranet server in communication connection with the intranet read optical drive reads ferry data recorded by the outer network and check data thereof into the intranet cache directory, and compares the check value of the ferry data with the read check value.
Particularly, the invention also provides a physical isolation data system between networks. The internetwork physical isolation data system comprises an outer network server, the internetwork physical isolation data device and an inner network server. The extranet server has extranet data, and the internetwork physical isolation data device is used for recording the extranet data onto the optical disk 5 when the extranet contact 31 is contacted with the first motor contact 21, and reading the data in the optical disk 5 recorded with the extranet data when the extranet contact 41 is contacted with the second motor contact 22, wherein the extranet data comprises the data to be ferry and the verification data thereof. The intranet server is used for storing ferry data and verification data thereof read by the internetwork physical isolation data device. And the intranet server is used for calculating the verification data of the ferry data, comparing the verification data obtained by calculation with the stored verification data, and if the verification data obtained by calculation is consistent with the stored verification data, sending information that the intranet server successfully stores the data.
Fig. 7 shows a schematic structure of an internetwork physical isolation data device according to another embodiment of the present invention. As shown in fig. 7, this embodiment is different from the previous embodiments in that the inter-mesh physical isolation data means includes a second driving motor 16 and a second sliding rail 17. The second driving motor 16 is provided on the base 1 for outputting a second driving force. The second slide rail 17 is arranged on the ferry trolley 6 and extends along the radial direction of the optical disk 5, and the second slide rail 17 is matched with the base of the CD-ROM drive spindle motor 2. Wherein, the optical drive spindle motor 2 is configured to reciprocate on the second slide rail 17 under the driving of the second driving motor 16 to move along the second slide rail 17 to a direction close to the first optical pickup device 3 or close to the second optical pickup device 4.
In this embodiment, the ferry cart 6 is fixedly disposed on the base 1, wherein the optical drive spindle motor 2 is configured to move along the second slide rail 17 toward the first optical pickup device 3 when the first optical pickup device 3 is to record the outer net data until the outer net contact 31 contacts the first motor contact 21. The spindle motor 2 of the optical disc drive is configured to move along the second sliding rail 17 toward the second optical pickup device 4 when the second optical pickup device 4 is to read the extranet data until the extranet contact 41 contacts the second motor contact 22.
Particularly, the invention also provides a physical isolation data system between networks. The internetwork physical isolation data system comprises an external network server, an internetwork physical isolation data device and an internal network server as shown in figure 7. The extranet server has extranet data, and the internetwork physical isolation data device is used for recording the extranet data onto the optical disk 5 when the extranet contact 31 is contacted with the first motor contact 21, and reading the data in the optical disk 5 recorded with the extranet data when the extranet contact 41 is contacted with the second motor contact 22, wherein the extranet data comprises the data to be ferry and the verification data thereof. The intranet server is used for storing ferry data and verification data thereof read by the internetwork physical isolation data device. And the intranet server is used for calculating the verification data of the ferry data, comparing the verification data obtained by calculation with the stored verification data, and if the verification data obtained by calculation is consistent with the stored verification data, sending information that the intranet server successfully stores the data.
According to the scheme of the invention, the physical isolation data between networks not only greatly reduces the volume, but also simplifies the structure because the internal network read optical drive and the external network recording optical drive share the optical drive spindle motor. Meanwhile, the internetwork physical isolation data is realized, the safety of the network data exchange process is ensured, and the physical isolation among networks of different levels can be realized.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (13)
1. An internetwork physical isolation data device, comprising:
a base;
the optical drive spindle motor is arranged on the base and is provided with a first motor contact point positioned on a first side of the optical drive spindle motor, a second motor contact point positioned on a second side of the optical drive spindle motor, wherein the second side of the optical drive spindle motor is opposite to the first side of the optical drive spindle motor, and an optical drive spindle for clamping a central hole of an optical disk thereon;
a first optical reading device arranged in the radial direction of the optical disc and connected with an external network server with external network data, wherein the first optical reading device is provided with an external network contact and is arranged to move relative to the optical disc drive spindle motor so that the external network contact is contacted with the first motor contact, and the external network data is recorded on the optical disc, and comprises data to be ferry and verification data;
a second optical reading device, disposed on an opposite side of the radial direction of the optical disc from the first optical reading device, and connected to the intranet server, the second optical reading device having an intranet contact and being disposed to be capable of moving relative to the optical disc drive spindle motor, so that the intranet contact is in contact with the second motor contact, thereby reading the data recorded with the extranet data in the optical disc;
when the outer network contact contacts with the first motor contact, the inner network contact is in a separated state from the second motor contact, and the projection of the second optical reading device perpendicular to the direction of the optical disc is staggered with respect to the optical disc, and when the inner network contact contacts with the second motor contact, the outer network contact is in a separated state from the first motor contact, and the projection of the first optical reading device perpendicular to the direction of the optical disc is staggered with respect to the optical disc;
the internetwork physical isolation data device further comprises:
the ferry trolley is arranged on the base, an opening part for enabling the CD-ROM main shaft to extend out of the ferry trolley is formed in the middle area of the ferry trolley, two end areas of the ferry trolley are located in the radial direction of the CD, and the two end areas are respectively a first end area located on one side of the middle area and a second end area located on the other side of the middle area;
the first optical reading device is positioned at the first end area, and the second optical reading device is positioned at the second end area;
the CD-ROM drive spindle motor is fixedly arranged on the base;
the ferrying trolley is arranged to drive the first optical reading device and the second optical reading device to move towards the direction close to the first motor contact along the radial direction of the optical disc when the first optical reading device is to record the external network data until the first optical reading device moves to the position where the external network contact is contacted with the first motor contact;
the ferry cart is configured to drive the first optical reading device and the second optical reading device to move in a direction close to the second motor contact along the radial direction of the optical disc when the second optical reading device is to read the extranet data until the extranet contact is in contact with the second motor contact.
2. The device for physically isolating data between networks according to claim 1, further comprising:
the first driving motor is arranged on the base and used for outputting a first driving force;
the first sliding rail is arranged on the base and extends along the radial direction of the optical disk, and the first sliding rail is matched with the base of the ferry trolley;
the ferry trolley is driven by the first driving motor to move on the first slide rail in a reciprocating manner, so that the first optical reading device and the second optical reading device are driven to move in a reciprocating manner along the radial direction of the optical disc.
3. The internetworking physical isolation data unit of claim 2, further comprising:
the first sensing blocking piece is arranged at the bottom of the first end area of the ferry trolley and moves back and forth along with the ferry trolley;
a first U-shaped sensor and a second U-shaped sensor, which are spaced apart from each other along the radial direction of the optical disc, are both located on a first side of the base, the first side of the base is the same side as the first end region, the first U-shaped sensor and the second U-shaped sensor are both in communication connection with the extranet server, and the second U-shaped sensor is closer to the optical drive spindle motor than the first U-shaped sensor;
when the first U-shaped sensor is blocked by the first sensing blocking piece, the inner network contact is in contact with the second motor contact; when the first sensing separation blade blocks the second U-shaped sensor, the outer net contact is in contact with the first motor contact.
4. The device according to claim 3, further comprising:
the second sensing blocking piece is arranged at the bottom of the second end area of the ferry trolley and moves back and forth along with the ferry trolley;
a third U-shaped sensor and a fourth U-shaped sensor which are arranged along the radial direction of the optical disc at intervals and are both positioned on a second side of the base, the second side of the base is the same side as the second end area, the third U-shaped sensor and the fourth U-shaped sensor are both in communication connection with the intranet server, and the third U-shaped sensor is closer to the optical drive spindle motor than the fourth U-shaped sensor;
when the second sensing separation blade blocks the third U-shaped sensor, the inner network contact is in contact with the second motor contact; when the fourth U-shaped sensor is blocked by the second sensing blocking piece, the outer net contact is in contact with the first motor contact.
5. The device according to claim 4, wherein the inner network contact contacts the second motor contact when the first sensing barrier blocks the first U-shaped sensor and/or the second sensing barrier blocks the third U-shaped sensor;
when the first sensing blocking piece blocks the second U-shaped sensor and/or the second sensing blocking piece blocks the fourth U-shaped sensor, the outer net contact is in contact with the first motor contact.
6. The device according to claim 4, wherein the first driving motor is controlled to stop working when the second sensor flap blocks the third U-shaped sensor or the fourth U-shaped sensor.
7. The device according to claim 4, wherein the first driving motor is controlled to stop operating when the first sensor barrier blocks the second U-shaped sensor at least twice in succession.
8. The device according to claim 4, wherein when the second sensor flap blocks the third U-shaped sensor at least twice in succession, the ferry cart is controllably moved until the outer net contact contacts the first motor contact, thereby rewriting the outer net data onto the optical disc.
9. The device according to any one of claims 1 to 8, further comprising:
the second driving motor is arranged on the base and used for outputting a second driving force;
the second sliding rail is arranged on the ferry trolley and extends along the radial direction of the optical disk, and the second sliding rail is matched with a base of the CD-ROM main shaft motor;
the optical drive spindle motor is configured to reciprocate on the second slide rail under the driving of the second driving motor so as to move along the second slide rail in a direction close to the first optical reading device or close to the second optical reading device.
10. The internetwork physical isolation data unit of claim 9, wherein the ferry vehicle is fixedly disposed on the base;
when the first optical reading device is to record the data of the external network, the spindle motor of the optical drive is arranged to move along the second slide rail to the direction close to the first optical reading device until the spindle motor of the optical drive moves to the contact point of the external network and the contact point of the first motor.
11. The device according to claim 10, wherein the optical disc drive spindle motor is configured to move along the second sliding rail in a direction approaching the second optical pickup device when the second optical pickup device is to read the extranet data until the intranet contact contacts the second motor contact.
12. An internetwork physically isolated data system, comprising:
an extranet server having extranet data;
the physical isolated data device of any one of claims 1-11, the physical isolated data device is configured to record the external network data onto an optical disc when an external network contact is in contact with a first motor contact, and to read data in the optical disc recorded with the external network data when an internal network contact is in contact with a second motor contact, the external network data including data to be ferry and its verification data;
and the intranet server is used for storing ferry data read by the internetwork physical isolation data device and check data of the ferry data.
13. The system according to claim 12, wherein the intranet server is configured to calculate verification data of the ferry data, compare the calculated verification data with the stored verification data, and send information that the intranet server successfully stores the data if the calculated verification data is consistent with the stored verification data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010653053.9A CN113921044B (en) | 2020-07-08 | 2020-07-08 | Inter-network physical isolation data device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010653053.9A CN113921044B (en) | 2020-07-08 | 2020-07-08 | Inter-network physical isolation data device and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113921044A CN113921044A (en) | 2022-01-11 |
| CN113921044B true CN113921044B (en) | 2023-02-17 |
Family
ID=79231797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010653053.9A Active CN113921044B (en) | 2020-07-08 | 2020-07-08 | Inter-network physical isolation data device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113921044B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6452893B1 (en) * | 2000-01-24 | 2002-09-17 | Hewlett-Packard Company | CD changing method and apparatus |
| CN101178909A (en) * | 2006-11-07 | 2008-05-14 | 广明光电股份有限公司 | CD ROM with multi-optical reading head |
| CN201654792U (en) * | 2010-03-26 | 2010-11-24 | 童超 | Safety information exchange system |
| CN106992016A (en) * | 2017-04-01 | 2017-07-28 | 汪雪松 | A kind of intelligent Ferrying machine system and method for work for realizing inside and outside network physical isolation |
| CN107507633A (en) * | 2017-08-21 | 2017-12-22 | 广东紫晶信息存储技术股份有限公司 | A kind of safe ferry device of data of optical disk and method |
| CN107644177A (en) * | 2016-07-20 | 2018-01-30 | 苏州互盟信息存储技术有限公司 | Physical isolation formula data one-way transmission apparatus and method |
| CN108417229A (en) * | 2018-03-21 | 2018-08-17 | 国网浙江建德市供电有限公司 | A kind of physical isolation apparatus and data transmission method |
| CN109389998A (en) * | 2018-10-24 | 2019-02-26 | 北京星震维度信息技术有限公司 | A kind of data ferry device and method |
| CN209627406U (en) * | 2019-03-25 | 2019-11-12 | 中国电子科技集团公司第二十八研究所 | One-way import system is isolated in inter-network based on radio-frequency technique |
| CN110570882A (en) * | 2019-09-16 | 2019-12-13 | 北京计算机技术及应用研究所 | data security ferry system with high security and confidentiality level |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0519556D0 (en) * | 2005-09-24 | 2005-11-02 | Ibm | Resilient data storage on optical media |
-
2020
- 2020-07-08 CN CN202010653053.9A patent/CN113921044B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6452893B1 (en) * | 2000-01-24 | 2002-09-17 | Hewlett-Packard Company | CD changing method and apparatus |
| CN101178909A (en) * | 2006-11-07 | 2008-05-14 | 广明光电股份有限公司 | CD ROM with multi-optical reading head |
| CN201654792U (en) * | 2010-03-26 | 2010-11-24 | 童超 | Safety information exchange system |
| CN107644177A (en) * | 2016-07-20 | 2018-01-30 | 苏州互盟信息存储技术有限公司 | Physical isolation formula data one-way transmission apparatus and method |
| CN106992016A (en) * | 2017-04-01 | 2017-07-28 | 汪雪松 | A kind of intelligent Ferrying machine system and method for work for realizing inside and outside network physical isolation |
| CN107507633A (en) * | 2017-08-21 | 2017-12-22 | 广东紫晶信息存储技术股份有限公司 | A kind of safe ferry device of data of optical disk and method |
| CN108417229A (en) * | 2018-03-21 | 2018-08-17 | 国网浙江建德市供电有限公司 | A kind of physical isolation apparatus and data transmission method |
| CN109389998A (en) * | 2018-10-24 | 2019-02-26 | 北京星震维度信息技术有限公司 | A kind of data ferry device and method |
| CN209627406U (en) * | 2019-03-25 | 2019-11-12 | 中国电子科技集团公司第二十八研究所 | One-way import system is isolated in inter-network based on radio-frequency technique |
| CN110570882A (en) * | 2019-09-16 | 2019-12-13 | 北京计算机技术及应用研究所 | data security ferry system with high security and confidentiality level |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113921044A (en) | 2022-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20170236545A1 (en) | High performance robotic optical storage system | |
| US7647469B2 (en) | Method of assigning virtual import/export element addresses | |
| CN113921044B (en) | Inter-network physical isolation data device and system | |
| US5777956A (en) | Changer-type disc playback device | |
| CN107644177B (en) | Physical isolation type data one-way transmission device and method | |
| US5237473A (en) | Magnetic disk drive comprising a disk cartridge and a driving device which magnetic disk drive has an eject mechanism for softly ejecting the disk cartridge from the driving device | |
| US6941488B2 (en) | Retrieval of a single complete copy from multiple stored copies of information | |
| JP2004185674A (en) | Disk driving device | |
| US6243332B1 (en) | Input/output periscope station for libraries | |
| EP1341171B1 (en) | Disk insertion position setting device | |
| US6177790B1 (en) | System and method for distributing power between components via a magnetic coupling | |
| US6359853B1 (en) | Disk player with a secure disk-securing mechanism | |
| WO2018159107A1 (en) | Disc storage device and disc archive device | |
| CN113160856B (en) | Optical disc library with transverse automatic loading and unloading CD driver and optical disc carrying method | |
| US11238896B2 (en) | Passive retraction of a hub clamp in an optical disc drive | |
| JPS5830650B2 (en) | Jikiki Rokusai Seisouchi | |
| CN115691569A (en) | Optical disk ferrying device | |
| JP3920189B2 (en) | Information recording / reproducing device | |
| JP2544675Y2 (en) | Auto changer device | |
| JPH0240162A (en) | Automatic information medium migrating device | |
| JPH08329200A (en) | Information reproducing device | |
| JPH08315488A (en) | Disk playing device | |
| JPH06309774A (en) | Auto-player | |
| JPH01150281A (en) | Hard disk device | |
| JPH0312071A (en) | Fixed magnetic storage device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |