CN210776692U - Isolation device supporting notebook computer network and mobile storage - Google Patents
Isolation device supporting notebook computer network and mobile storage Download PDFInfo
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- CN210776692U CN210776692U CN201921588529.4U CN201921588529U CN210776692U CN 210776692 U CN210776692 U CN 210776692U CN 201921588529 U CN201921588529 U CN 201921588529U CN 210776692 U CN210776692 U CN 210776692U
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Abstract
The utility model relates to an isolating device supporting notebook computer network and mobile storage, which comprises a control switching module, a USB HUB module, an RJ45 interface, an external network RJ45 interface, an internal network RJ45 interface, a USB interface, an external network USB interface and an internal network USB interface, the RJ45 interface is connected with an external network RJ45 interface or an internal network RJ45 interface through a first single-pole double-throw switch, the USB HUB module is connected with an external network USB interface or an internal network USB interface through a second single-pole double-throw switch, USB HUB module and control switch the module and be connected, the utility model discloses a control switches the module, with the RJ45 interface through first single-pole double-throw switch and outer net RJ45 interface or intranet RJ45 interface connection, realizes the physical isolation of interior outer net and the isolation safety of mobile storage equipment through second single-pole double-throw switch and outer net USB interface or intranet USB interface connection with the USB HUB module, guarantees user's network security.
Description
Technical Field
The utility model relates to a network isolation technical field, concretely relates to support isolating device of notebook network and mobile storage.
Background
In the process of popularization and application of electronic government affairs in China, each level of government units and enterprises and public institutions gradually possess two or more than two sets of networks. There are generally Internet networks and government networks, which are under security requirements and cannot be physically connected to the Internet.
This application scenario gives the opportunity for the development of physical isolation products. If the special machine is used, at least two office computers are needed for each station, which causes great financial stress. In this case, the physical isolation of the end use is achieved by the carrier.
The physical isolation card is provided in the form of a board card and is mainly used on a desktop machine. By isolating the hard disk and the network, the operating system of the internal network can only be connected with a government affair network, and the operating system of the external network can only be connected with an Internet network. The physical isolation between the internal network and the external network is ensured in a mode of monopolizing the computer in a time sharing manner, and the requirements of customers are met.
Most of the physical isolation cards on the market at present are installed on a PCI/PCIE slot of a desktop in the form of a PCI/PCIE interface. Each isolation card manufacturer also provides a hard disk data line and a power line, so that the installation is convenient for users. Typically, the isolation card is a double-hard-disk isolation card, and a user connects two hard disks to the physical isolation card, and the isolation card controls the power supply of the two hard disks. And RJ45 network ports of the internal network and the external network are provided on the isolation card and are connected with the RJ45 network port on the mainboard in the form of a single-pole double-throw switch. The isolation card controls the peripheral equipment to ensure that the network port and the hard disk of the external network can only access the Internet network; the network port and the hard disk of the intranet can only access the government affair network. Therefore, the physical isolation of the terminal is realized, and hackers cannot attack the government affair network due to the complete physical isolation of the government affair network and the Internet, so that the data security of users is ensured.
With the development of PCs, the office environment used by customers is becoming more diversified. One of the most obvious trends is that notebooks are beginning to slowly replace desktop computers. At present, office computers of governments and enterprises and public institutions in China are mainly desktop computers, but in some institutions, office IT environments mainly including notebooks begin to appear.
In this case, the original physical isolation card cannot meet the requirement. Compared with a desktop computer, the notebook computer has small internal space and does not provide peripheral extension of an isolation card type.
By analyzing the customer requirements in a new application scenario, we can find that the customer requirements are still concentrated on network isolation. In addition, because of the portability of notebook computers, various USB storage devices are used more frequently than ever before. In the market, a plurality of users always forget to pull out the USB flash disk when copying data in a government internal network. When the user switches to the external network, these storage devices are directly connected to the Internet. This operation is not allowed according to the national safety regulations.
That is, if one wants to implement physically isolated security on a notebook, two problems must be solved:
1) physical isolation of the internal and external networks;
2) isolated security for mobile storage devices (primarily USB);
SUMMERY OF THE UTILITY MODEL
The technical problem of the utility model is to provide an isolating device who supports notebook network and mobile storage solves the problem that the physical isolation card among the prior art can not satisfy notebook computer network and storage isolation.
For solving the above technical problem, the technical scheme of the utility model is that: the isolation device supporting the notebook computer network and the mobile storage is provided, and the innovation points are as follows: including control switching module, the USB HUB module, the RJ45 interface, outer net RJ45 interface, intranet RJ45 interface, the USB interface, outer net USB interface and intranet USB interface, the RJ45 interface is through first single-pole double-throw switch and outer net RJ45 interface or intranet RJ45 interface connection, the USB interface is connected with the USB HUB module, the USB HUB module passes through second single-pole double-throw switch and outer net USB interface or intranet USB interface connection, the USB HUB module is connected with control switching module, control switching module comes the connection status of controlling single-pole double-throw switch respectively with first single-pole double-throw switch and second single-pole double-throw switch respectively.
Furthermore, the USB HUB module supports the USB3.0 interface standard and is downward compatible with the USB2.0 and USB1.0 interface standards.
Further, the control switching module includes chip U1, the model of chip U1 is CY7C63823, the USB HUB module includes chip U2, the model of chip U2 is tubb 8020B, the RJ45 interface includes chip W1, the model of W1 is NetCard, the external network RJ45 interface includes chip W3, the model of W3 is OUTER, the internal network RJ45 interface includes chip W2, the model of chip W2 is inener, the USB interface includes chip USB1, the external network USB interface includes chip USB3, the internal network USB interface includes chip USB2, the models of chip USB1, chip USB3 and chip USB2 are USB _ a, the second single-pole double-throw switch includes chip U4, the model of chip U4 is HD3SS 6126.
Further, pins 13 and 14 of the chip U1 are respectively connected with pins 41 and 42 of the chip U2; the pin 21 of the chip U1 is connected with the pin 9 of the chip U4; pin 15 of the chip U1 is connected with a 5V power supply, and pin 12 of the chip U1 is grounded;
Furthermore, the first single-pole double-throw switch comprises a resistor R5, a resistor R7, a triode Q1, a triode Q2, a relay RL1, a relay RL2, a relay RL3 and a relay RL4, pins 10 and 11 of the chip U1 are respectively connected with one ends of the resistors R5 and R7, the other ends of the resistors R5 and R7 are respectively connected with the base B ends of the triodes Q1 and Q2, and the collector C end of the triode Q1 is connected with the pin 2 of the relays RL1 and RL 2; the collector C end of the triode Q2 is connected to the pin 2 of the relays RL3 and RL 4; the emitting electrodes E of the triodes Q1 and Q2 are grounded; pins 3 and 4 of the relay RL1 are respectively connected with pins 3 and 6 of a chip W2, pins 3 and 4 of the relay RL2 are respectively connected with pins 2 and 1 of a chip W2, pins 3 and 4 of the relay RL3 are respectively connected with pins 5 and 4 of a chip W2, and pins 3 and 4 of the relay RL4 are respectively connected with pins 7 and 8 of a chip W2; pins 5 and 6 of the relay RL1 are respectively connected to pins 3 and 6 of a chip W1, pins 5 and 6 of the relay RL2 are respectively connected to pins 2 and 1 of a chip W1, pins 5 and 6 of the relay RL3 are respectively connected to pins 5 and 4 of a chip W1, and pins 5 and 6 of the relay RL4 are respectively connected to pins 7 and 8 of a chip W1; pins 7 and 8 of the relay RL1 are respectively connected with pins 3 and 6 of a chip W3, pins 7 and 8 of the relay RL2 are respectively connected with pins 2 and 1 of a chip W3, pins 7 and 8 of the relay RL3 are respectively connected with pins 5 and 4 of a chip W3, and pins 7 and 8 of the relay RL4 are respectively connected with pins 7 and 8 of a chip W3.
Further, the first single-pole double-throw switch further comprises diodes D1, D2, D3 and D4, anodes of the diodes D1, D2, D3 and D4 are respectively connected with pins 2 of relays RL1, RL2, RL3 and RL4, cathodes of the diodes D1, D2, D3 and D4 are respectively connected with pins 1 of relays RL1, RL2, RL3 and RL4, and pins 1 of the relays RL1, RL2, RL3 and RL4 are connected with a 5V power supply.
Furthermore, the model of the triode Q1 and the model of the triode Q2 are both 9014, and the model of the diodes D1, D2, D3 and D4 are all IN 4148.
Compared with the prior art, the utility model, the beneficial effect who produces does:
the utility model discloses passing through control switching module with isolating device, passing through first single-pole double throw switch and outer net RJ45 interface or intranet RJ45 interface connection with the RJ45 interface, realize the physical isolation of inner and outer net and the isolation safety of removing storage device with the USB HUB module through second single-pole double throw switch and outer net USB interface or intranet USB interface connection, guarantee user's network safety.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an isolation device supporting a notebook network and mobile storage according to the present invention.
Fig. 2 is a circuit diagram of the control switch module in fig. 1.
FIG. 3 is a circuit diagram of the USB HUB module of FIG. 1.
Fig. 4 is a circuit diagram of the first single pole double throw switch of fig. 1.
Fig. 5 is a circuit diagram of the second single pole double throw switch of fig. 1.
Fig. 6 is a circuit diagram of the RJ45 interface in fig. 1.
Fig. 7 is a circuit diagram of the RJ45 interface of the external network in fig. 1.
Fig. 8 is a circuit diagram of the internal RJ45 interface in fig. 1.
Fig. 9 is a circuit diagram of the USB interface of fig. 1.
Fig. 10 is a circuit diagram of the external network USB interface in fig. 1.
Fig. 11 is a circuit diagram of the intranet USB interface in fig. 1.
Detailed Description
The technical solution of the present invention will be described clearly and completely through the following detailed description.
The utility model provides an isolating device for supporting notebook computer network and mobile storage, as shown in figure 1, comprising a control switching module, a USB HUB module, a RJ45 interface, an outer net RJ45 interface, an inner net RJ45 interface, a USB interface, an outer net USB interface and an inner net USB interface, wherein the RJ45 interface and the USB interface are respectively connected with a mainboard RJ45 interface and a mainboard USB interface of a notebook computer, the RJ45 interface is connected with an outer net RJ45 interface or an inner net RJ45 interface through a first single-pole double-throw switch, the USB interface is connected with the USB HUB module, the USB HUB module is connected with the outer net USB interface or the inner net USB interface through a second single-pole double-throw switch, the first single-pole double-throw switch and the second single-pole double-throw switch ensure the isolation of the notebook computer network and the storage device, the USBHUB module is connected with the control switching module, and the control switching module is respectively connected with the first single-pole double-throw switch and the second single-pole double-throw switch to respectively control the connection state of the single-pole double-throw switches. The USB HUB module supports the USB3.0 interface standard and is downward compatible with the USB2.0 and USB1.0 interface standards.
The utility model discloses a control switching module includes chip U1, and the model of chip U1 is CY7C63823, and the USB HUB module includes chip U2, and the model of chip U2 is TUSB8020B, and RJ45 interface includes chip W1, the model of W1 is NetCard, and extranet RJ45 interface includes chip W3, and the model of W3 is OUTER, intranet RJ45 interface includes chip W2, and the model of chip W2 is INNER, the USB interface includes chip USB1, and extranet USB interface includes chip USB3, and intranet USB interface includes chip USB2, the model of chip USB1, chip USB3 and chip USB2 is USB _ A, and the second single pole double throw includes chip U4, the model of chip U4 is HD3SS 6126.
The circuit diagram of the isolating device supporting the notebook computer network and the mobile storage of the utility model is shown in fig. 2-11, pins 13 and 14 of a chip U1 are respectively connected with pins 41 and 42 of a chip U2; pin 21 of chip U1 is connected to pin 9 of chip U4; pin 15 of the chip U1 is connected to a 5V power supply, and pin 12 of the chip U1 is grounded.
The utility model discloses a first single-pole double-throw switch contains resistance R5, resistance R7, triode Q1, triode Q2, relay RL1, relay RL2, relay RL3 and relay RL4, chip U1's pin 10, 11 are connecting resistance R5 respectively, R7's one end, triode Q1, triode Q2's base B end is connected respectively to resistance R5, R7's the other end, triode Q1's collecting electrode C end is connected relay RL1, RL 2's pin 2; the collector C end of the triode Q2 is connected to the pin 2 of the relays RL3 and RL 4; the emitting electrodes E of the triodes Q1 and Q2 are grounded; pins 3 and 4 of a relay RL1 are respectively connected with pins 3 and 6 of a chip W2, pins 3 and 4 of the relay RL2 are respectively connected with pins 2 and 1 of a chip W2, pins 3 and 4 of a relay RL3 are respectively connected with pins 5 and 4 of a chip W2, and pins 3 and 4 of a relay RL4 are respectively connected with pins 7 and 8 of a chip W2; pins 5 and 6 of the relay RL1 are connected to pins 3 and 6 of the chip W1, respectively, pins 5 and 6 of the relay RL2 are connected to pins 2 and 1 of the chip W1, pins 5 and 6 of the relay RL3 are connected to pins 5 and 4 of the chip W1, respectively, and pins 5 and 6 of the relay RL4 are connected to pins 7 and 8 of the chip W1, respectively; pins 7 and 8 of a relay RL1 are respectively connected with pins 3 and 6 of a chip W3, pins 7 and 8 of a relay RL2 are respectively connected with pins 2 and 1 of a chip W3, pins 7 and 8 of the relay RL3 are respectively connected with pins 5 and 4 of a chip W3, and pins 7 and 8 of a relay RL4 are respectively connected with pins 7 and 8 of a chip W3. The first single-pole double-throw switch further comprises diodes D1, D2, D3 and D4, the anodes of the diodes D1, D2, D3 and D4 are respectively connected with pins 2 of relays RL1, RL2, RL3 and RL4, the cathodes of the diodes D1, D2, D3 and D4 are respectively connected with pins 1 of relays RL1, RL2, RL3 and RL4, and pins 1 of relays RL1, RL2, RL3 and RL4 are connected with a 5V power supply.
The utility model discloses a triode Q1 and triode Q2's model is 9014, diode D1, D2, D3, D4's model are IN 4148.
The utility model discloses before using, the user passes through notebook computer and selects to get into intranet operating system or outer net operating system, and isolating device switches the module through control according to the user selection, controls first single-pole double-throw switch and second single-pole double-throw switch and switches hardware to corresponding state. The external network operating system of the notebook computer can only access the interface in the external network state, and the internal network operating system can only access the interface in the internal network state, so that the isolation between the network and the storage equipment of the notebook computer is realized, and the network safety of a user is ensured.
The above-mentioned embodiments are only described as the preferred embodiments of the present invention, and are not intended to limit the concept and scope of the present invention, and the technical content of the present invention, which is claimed by the present invention, is fully recorded in the technical claims.
Claims (7)
1. An isolation device supporting a notebook network and mobile storage, comprising: including control switching module, USBHUB module, RJ45 interface, outer net RJ45 interface, intranet RJ45 interface, USB interface, outer net USB interface and intranet USB interface, the RJ45 interface is through first single-pole double-throw switch and outer net RJ45 interface or intranet RJ45 interface connection, USB interface and USB HUB module are connected, the USB HUB module passes through second single-pole double-throw switch and outer net USB interface or intranet USB interface connection, the isolation of notebook computer network and storage device is guaranteed to realize to first single-pole double-throw switch and second single-pole double-throw switch, the USB HUB module is connected with control switching module, control switching module controls the connection status of single-pole double-throw switch respectively with first single-pole double-throw switch and second single-pole double-throw switch.
2. The isolated device supporting a notebook network and mobile storage according to claim 1, wherein: the USB HUB module supports the USB3.0 interface standard and is downward compatible with the USB2.0 and USB1.0 interface standards.
3. The isolated device supporting a notebook network and mobile storage according to claim 1, wherein: the control switching module includes chip U1, the model of chip U1 is CY7C63823, the USB HUB module includes chip U2, the model of chip U2 is TUSB8020B, RJ45 interface includes chip W1, the model of W1 is NetCard, extranet RJ45 interface includes chip W3, the model of W3 is OUTER, intranet RJ45 interface includes chip W2, the model of chip W2 is INNER, the USB interface includes chip USB1, extranet USB interface includes chip USB3, intranet USB interface includes chip USB2, the models of chip USB1, chip USB3 and USB chip 2 are USB _ A, the second single-pole double-throw switch that includes chip U4, the model of chip U4 is HD3SS 6126.
4. The isolated device supporting a notebook network and mobile storage according to claim 1, wherein: pins 13 and 14 of the chip U1 are respectively connected with pins 41 and 42 of a chip U2; the pin 21 of the chip U1 is connected with the pin 9 of the chip U4; pin 15 of the chip U1 is connected with a 5V power supply, and pin 12 of the chip U1 is grounded;
pins 26, 27, 31, 32 of the chip U2 are connected to pins 3, 2, 8, 9 of a chip USB1, respectively; pins 28 and 29 of the chip U2 are respectively connected with one ends of capacitors C33 and C32, and the other ends of the capacitors C33 and C32 are respectively connected with pins 5 and 6 of a USB 1; pins 14, 15, 19 and 20 of the chip U2 are respectively connected with pins 8, 7, 15 and 16 of a chip U4; pins 16 and 17 of the chip U2 are respectively connected with one ends of capacitors C31 and C30, and the other ends of the capacitors C31 and C3 are respectively connected with pins 11 and 12 of a chip U4; pins 38 and 39 of the chip U2 are respectively connected with pins 1 and 2 of a crystal oscillator X4, pins 1 and 2 of the crystal oscillator X4 are respectively connected with two ends of a resistor R17, pins 1 and 2 of the crystal oscillator X4 are respectively connected with one ends of capacitors C20 and C21, and the other ends of the capacitors C20 and C21 are both grounded; the pin 9 of the chip U2 is connected with a USB power supply through a resistor R12 in a pull-up mode, and is grounded through a resistor R13 in a pull-down mode; pin 10 of the chip U2 is pulled down to ground through a resistor R18; pin 11 of the chip U2 is grounded through a capacitor C23; pins 24, 35 and 36 of the chip U2 are pulled down to ground through resistors R11, R15 and R14 respectively; pins 1, 12, 18, 30, 34 and 45 of the chip U2 are all connected with a 1.1V power supply; pins 7, 13, 23, 25, 33, 37, 40 and 48 of the chip U2 are all connected with a 3.3V power supply; the Termal pad of the chip U2 is grounded;
pins 34, 33, 25, 24, 23 and 22 of the chip U4 are respectively connected with pins 2, 3, 6, 5, 9 and 8 of a USB 3; pins 32, 31, 29, 28, 27 and 26 of the chip U4 are respectively connected with pins 2, 3, 6, 5, 9 and 8 of a USB 2; pin 6 of the chip U4 is pulled down to ground through a resistor R10; pins 13, 20 and 30 of the chip U4 are all connected with a 3.3V power supply; pins 10, 14, 17, 19, 21, 0 of the chip U4 are all grounded.
5. The isolated device supporting a notebook network and mobile storage according to claim 1, wherein: the first single-pole double-throw switch comprises a resistor R5, a resistor R7, a triode Q1, a triode Q2, a relay RL1, a relay RL2, a relay RL3 and a relay RL4, pins 10 and 11 of the chip U1 are respectively connected with one ends of the resistors R5 and R7, the other ends of the resistors R5 and R7 are respectively connected with base terminals B of the triode Q1 and the triode Q2, and a collector terminal C of the triode Q1 is connected with a pin 2 of the relays RL1 and RL 2; the collector C end of the triode Q2 is connected to the pin 2 of the relays RL3 and RL 4; the emitting electrodes E of the triodes Q1 and Q2 are grounded; pins 3 and 4 of the relay RL1 are respectively connected with pins 3 and 6 of a chip W2, pins 3 and 4 of the relay RL2 are respectively connected with pins 2 and 1 of a chip W2, pins 3 and 4 of the relay RL3 are respectively connected with pins 5 and 4 of a chip W2, and pins 3 and 4 of the relay RL4 are respectively connected with pins 7 and 8 of a chip W2; pins 5 and 6 of the relay RL1 are respectively connected to pins 3 and 6 of a chip W1, pins 5 and 6 of the relay RL2 are respectively connected to pins 2 and 1 of a chip W1, pins 5 and 6 of the relay RL3 are respectively connected to pins 5 and 4 of a chip W1, and pins 5 and 6 of the relay RL4 are respectively connected to pins 7 and 8 of a chip W1; pins 7 and 8 of the relay RL1 are respectively connected with pins 3 and 6 of a chip W3, pins 7 and 8 of the relay RL2 are respectively connected with pins 2 and 1 of a chip W3, pins 7 and 8 of the relay RL3 are respectively connected with pins 5 and 4 of a chip W3, and pins 7 and 8 of the relay RL4 are respectively connected with pins 7 and 8 of a chip W3.
6. The isolated device supporting notebook networks and mobile storage according to claim 5, wherein: the power supply also comprises diodes D1, D2, D3 and D4, the anodes of the diodes D1, D2, D3 and D4 are respectively connected with pins 2 of relays RL1, RL2, RL3 and RL4, the cathodes of the diodes D1, D2, D3 and D4 are respectively connected with pins 1 of relays RL1, RL2, RL3 and RL4, and pins 1 of the relays RL1, RL2, RL3 and RL4 are connected with a 5V power supply.
7. The isolated device supporting notebook networks and mobile storage according to claim 6, wherein: the model of the triode Q1 and the model of the triode Q2 are both 9014, and the model of the diodes D1, D2, D3 and D4 are all IN 4148.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631970A (en) * | 2020-12-31 | 2021-04-09 | 深圳市博海远大科技有限公司 | Multifunctional internal and external network switcher |
| CN112905117A (en) * | 2021-02-08 | 2021-06-04 | 青岛九日软件科技服务有限责任公司 | Data storage method with double-interface memory |
| CN112952486A (en) * | 2021-02-08 | 2021-06-11 | 青岛九日软件科技服务有限责任公司 | Multi-mode connection interface and control method thereof |
-
2019
- 2019-09-24 CN CN201921588529.4U patent/CN210776692U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112631970A (en) * | 2020-12-31 | 2021-04-09 | 深圳市博海远大科技有限公司 | Multifunctional internal and external network switcher |
| CN112631970B (en) * | 2020-12-31 | 2024-04-26 | 深圳市博海远大科技有限公司 | Multifunctional internal and external network switcher |
| CN112905117A (en) * | 2021-02-08 | 2021-06-04 | 青岛九日软件科技服务有限责任公司 | Data storage method with double-interface memory |
| CN112952486A (en) * | 2021-02-08 | 2021-06-11 | 青岛九日软件科技服务有限责任公司 | Multi-mode connection interface and control method thereof |
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