CN203645692U - Isolating device for enterprise intranet violation access terminal - Google Patents
Isolating device for enterprise intranet violation access terminal Download PDFInfo
- Publication number
- CN203645692U CN203645692U CN201320687100.7U CN201320687100U CN203645692U CN 203645692 U CN203645692 U CN 203645692U CN 201320687100 U CN201320687100 U CN 201320687100U CN 203645692 U CN203645692 U CN 203645692U
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- China
- Prior art keywords
- circuit
- interface
- flash memory
- violation
- regulations
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The utility model provides an isolating device for an enterprise intranet violation access terminal. The device comprises a central processor, a watchdog circuit, an I/O interface circuit, a CAN bus interface, a USB interface, a flash memory, a synchronous dynamic RAM, a device drive circuit, and a power module. The watchdog circuit, the I/O interface circuit, the CAN bus interface, the USB interface, the flash memory, the synchronous dynamic RAM, and the device drive circuit are connected with the central processor. The power module is connected with the watchdog circuit, the I/O interface circuit, the CAN bus interface, the USB interface, the flash memory, the synchronous dynamic RAM, and the device drive circuit. The device is advantaged in that an unknown access device in the intranet can be found in time and can be isolated, greatly reducing potential safety hazard on the whole network after the unknown terminal is accessed.
Description
Technical field
The utility model relates to power equipment, relates in particular to a kind of terminal spacer assembly.
Background technology
Along with the development of electric power networks scale and the continuous lifting of information data protection requirement; electric power networks company has progressively strengthened the access control of interior network termination; for example State Grid Corporation of China requires the terminal of all access electric power Intranets to be known device, and unknown device is without registration inaccurate access electric power Intranet without exception.Along with the universal and normal activity in production of wireless network, corporate intranet is difficult to avoid some unknown terminal access network in undelegated situation, bring hidden danger to whole corporate intranet fail safe, if effectively isolation corporate intranet violation in time accesses terminal most important to the information security of enterprise.
At present for accessing terminal in violation of rules and regulations, corporate intranet safety management adopts Defending Measures in Advance conventionally, utilize and at fire compartment wall, access rights are set for important server resource, limit the access rights of particular address section to whole corporate intranet by dividing VLAN, but all cannot avoid the physics access accessing terminal in violation of rules and regulations, bring potential risk to network security.
Utility model content
Technical problem to be solved of the present utility model is a kind of corporate intranet spacer assembly that accesses terminal in violation of rules and regulations, this device can be found in time access device unknown in Intranet and isolate, greatly reduce unknown terminal and access the potential safety hazard of bringing to whole network.
The utility model solves the problems of the technologies described above by the following technical solutions: a kind of corporate intranet spacer assembly that accesses terminal in violation of rules and regulations, comprise central processing unit, watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit, and power module, described watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit is all connected to central processing unit, described power module is connected to watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit.
Concrete, described central processing unit comprises S3C2440 chip, acquisition module, memory module, communication module, and clock circuit, reset circuit, power circuit, described acquisition module, memory module, communication module, and clock circuit, reset circuit, power circuit are all connected to S3C2440 chip.
Concrete, described acquisition module comprises A/D change-over circuit and D/A change-over circuit, described memory module comprises nand flash memory, NOR flash memory and synchronous DRAM, and described communication module comprises host interface, USB wireless network card interface, and TCP/IP Ethernet interface.
Concrete, described flash memory adopts AT49BV1614 flash chip.
Concrete, described power module comprises filter, bridge rectifier, inductance, diode, thyristor, electric capacity, DC/DC translation circuit, alternating current enters the input of DC/DC translation circuit successively after filtering after device, bridge rectifier, inductance, diode, the output of DC/DC translation circuit is as the output of power module, described thyristor is arranged between the node and ground of anode of inductance and diode, and described electric capacity is arranged between the negative electrode and ground of diode.
The utility model has the advantage of: can find in time access device unknown in Intranet and isolate, greatly reducing unknown terminal and access the potential safety hazard of bringing to whole network.
Brief description of the drawings
Fig. 1 is access terminal the in violation of rules and regulations network access mode schematic diagram of spacer assembly of the utility model corporate intranet.
Fig. 2 is access terminal the in violation of rules and regulations structure chart of spacer assembly of the utility model corporate intranet.
Fig. 3 is the composition structure chart of central processing unit of the present utility model.
Fig. 4 is the composition structure chart of power module of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
Refer to shown in Fig. 1, the utility model corporate intranet spacer assembly that accesses terminal in violation of rules and regulations directly uses the mode of bypass access to be laid in local area network (LAN), does not need to reconfigure user terminal work station, and device implementation process is completely transparent for user side.
Refer to shown in Fig. 2, the utility model corporate intranet spacer assembly that accesses terminal in violation of rules and regulations comprises central processing unit (CPU), watchdog circuit (WatchDog), I/O interface circuit, CAN bus interface, USB interface, flash memory (FLASH), synchronous DRAM (SDRAM), device drive circuit, and power module.Described watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit are all connected to central processing unit, described power module is connected to watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit, gives these equipment power supplies.
Described central processing unit, this partial circuit is access terminal the in violation of rules and regulations core of spacer assembly of the utility model corporate intranet, and described central processing unit adopts S3C2440 chip, and it is based on ARM920T kernel, it is manufactured for Industry Control specially, and indices all can reach industrial rank.ARM920T has realized MMU, AMBA BUS and Har-vard speed buffering architecture, and system resource and peripheral interface are abundant, comprises power supply improvement device, external memory controller, 4 passage DMA, 3 passage UART, 10,8 tunnel ADC and GPIO etc.The structure that described central processing unit adopts as shown in Figure 3, comprise S3C2440 chip, acquisition module, memory module, communication module, and clock circuit, reset circuit, power circuit, described acquisition module, memory module, communication module, and clock circuit, reset circuit, power circuit are all connected to S3C2440 chip.Described acquisition module comprises A/D change-over circuit and D/A change-over circuit, described memory module comprises nand flash memory, NOR flash memory and synchronous DRAM (SDRAM), described communication module comprises host interface (Host PORT), USB wireless network card interface (USB Wireless), and TCP/IP Ethernet interface.
The flash memory that described corporate intranet violation accesses terminal spacer assembly, after system cut-off, can persistence system restart required priginal soft setting and data.The design selects AT49BV1614 flash chip, and this chip capacity is 2MB, stores embedded operating system kernel, system start-up routine and user program etc. on chip.
Access terminal the in violation of rules and regulations power module of spacer assembly of described corporate intranet, design adopts novel AC-DC switch power module application technology.A) power voltage supply, by secondary side PT power taking; B) in the system of terminal, ensure central module ground wire " complete floating empty "; C) separately power supply of analog channel, digital circuit and communication module circuit; D) by protective circuit long-acting large-capacity polymer battery in parallel, after outside power cut-off, incision automatically, maintains system works as UPS.The structure of described power module as shown in Figure 4, comprise filter, bridge rectifier, inductance, diode, thyristor, electric capacity, DC/DC translation circuit, alternating current enters the input of DC/DC translation circuit successively after filtering after device, bridge rectifier, inductance, diode, the output of DC/DC translation circuit is as the output of power module, described thyristor is arranged between the node and ground of anode of inductance and diode, and described electric capacity is arranged between the negative electrode and ground of diode.
The foregoing is only the preferred embodiment that the utility model is created; do not create in order to limit the utility model; any amendment of doing within all spirit of creating at the utility model and principle, be equal to and replace and improvement etc., within all should being included in the protection range that the utility model creates.
Claims (5)
1. the corporate intranet spacer assembly that accesses terminal in violation of rules and regulations, it is characterized in that: comprise central processing unit, watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit, and power module, described watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit is all connected to central processing unit, described power module is connected to watchdog circuit, I/O interface circuit, CAN bus interface, USB interface, flash memory, synchronous DRAM, device drive circuit.
2. the corporate intranet according to claim 1 spacer assembly that accesses terminal in violation of rules and regulations, it is characterized in that: described central processing unit comprises S3C2440 chip, acquisition module, memory module, communication module, and clock circuit, reset circuit, power circuit, described acquisition module, memory module, communication module, and clock circuit, reset circuit, power circuit are all connected to S3C2440 chip.
3. the corporate intranet according to claim 2 spacer assembly that accesses terminal in violation of rules and regulations, it is characterized in that: described acquisition module comprises A/D change-over circuit and D/A change-over circuit, described memory module comprises nand flash memory, NOR flash memory and synchronous DRAM, described communication module comprises host interface, USB wireless network card interface, and TCP/IP Ethernet interface.
4. the corporate intranet according to claim 1 spacer assembly that accesses terminal in violation of rules and regulations, is characterized in that: described flash memory adopts AT49BV1614 flash chip.
5. the corporate intranet according to claim 1 spacer assembly that accesses terminal in violation of rules and regulations, it is characterized in that: described power module comprises filter, bridge rectifier, inductance, diode, thyristor, electric capacity, DC/DC translation circuit, alternating current device after filtering successively, bridge rectifier, inductance, after diode, enter the input of DC/DC translation circuit, the output of DC/DC translation circuit is as the output of power module, described thyristor is arranged between the node and ground of anode of inductance and diode, described electric capacity is arranged between the negative electrode and ground of diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687100.7U CN203645692U (en) | 2013-11-01 | 2013-11-01 | Isolating device for enterprise intranet violation access terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687100.7U CN203645692U (en) | 2013-11-01 | 2013-11-01 | Isolating device for enterprise intranet violation access terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645692U true CN203645692U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687100.7U Expired - Fee Related CN203645692U (en) | 2013-11-01 | 2013-11-01 | Isolating device for enterprise intranet violation access terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203645692U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786730A (en) * | 2016-03-17 | 2016-07-20 | 国网浙江嵊州市供电公司 | Intelligent computer hardware port control device |
| CN106778324A (en) * | 2016-11-25 | 2017-05-31 | 合肥海亚信息科技有限公司 | One kind is based on Embedded portable hard mine dam |
| CN107181746A (en) * | 2017-05-18 | 2017-09-19 | 合肥海亚信息科技有限公司 | A kind of Intranet information protection device based on hardware mine dam |
-
2013
- 2013-11-01 CN CN201320687100.7U patent/CN203645692U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105786730A (en) * | 2016-03-17 | 2016-07-20 | 国网浙江嵊州市供电公司 | Intelligent computer hardware port control device |
| CN106778324A (en) * | 2016-11-25 | 2017-05-31 | 合肥海亚信息科技有限公司 | One kind is based on Embedded portable hard mine dam |
| CN107181746A (en) * | 2017-05-18 | 2017-09-19 | 合肥海亚信息科技有限公司 | A kind of Intranet information protection device based on hardware mine dam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |