CN106506517A - A kind of embedded hardware firewall device based on Linux - Google Patents
A kind of embedded hardware firewall device based on Linux Download PDFInfo
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- CN106506517A CN106506517A CN201611049130.XA CN201611049130A CN106506517A CN 106506517 A CN106506517 A CN 106506517A CN 201611049130 A CN201611049130 A CN 201611049130A CN 106506517 A CN106506517 A CN 106506517A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0227—Filtering policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0227—Filtering policies
- H04L63/0263—Rule management
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- Computer Hardware Design (AREA)
- Computer Security & Cryptography (AREA)
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- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention discloses a kind of embedded hardware firewall device based on Linux; including protecting shell; the outer surface side of the protection shell is inlaid with Interface Terminal; inside is installed with surface-mounted integrated circuit; the surface-mounted integrated circuit center weld has core processing module; the reading-writing port of the core processing module is connected with data memory module; COM1 is connected with ethernet interface module; the other end of the ethernet interface module is connected with interface module, and the core processing module is also associated with alarm module；The access interface of the interface module is connected with Interface Terminal physical electrical, interface module is built-in with packet interception module, the input/output terminal of the packet interception module is connected with packet filtering module and intrusion detection module, the present invention adopts hardware designs fire wall, and cost of implementation is low, powerful, deployment little to the dependence of host operating system is convenient.
Description
Technical field
The present invention relates to firewall technology field, specially a kind of embedded hardware firewall device based on Linux.
Background technology
Developing rapidly and popularizing with Internet, people easily can be enjoyed rich on network by Internet
Rich information and resource, the importance of network and the impact to society increasing, and this trend is also constantly accelerating, but
Network security problem is also increasingly projected, and fire wall is exactly a kind of important means that takes precautions against unauthorized access and attack, and it generally sets
Put in network boundary, the packet for passing in and out network is checked, outside network attack being blocked in internal network.But,
Traditional perimeter firewall excessively depends on network topology structure, it is impossible to takes precautions against and internals attack, while there is flow concentration problem.
The appearance of distributed fire wall effectively overcomes the defect of traditional firewall, but the distributed fire wall that is realized based on software
Exist " function antinomy ", the hardware firewall based on special network processor is relatively costly, it is difficult to spread to network end-point.
Content of the invention
For problem above, the invention provides a kind of embedded hardware firewall device based on Linux, using hardware
Design fire wall, cost of implementation is low, powerful, deployment little to the dependence of host operating system is convenient, can be carried on the back with effectively solving
Problem in scape technology.
For achieving the above object, the present invention provides following technical scheme：A kind of embedded hardware fire wall based on Linux
Device, including protecting shell, the outer surface side of the protection shell to be inlaid with Interface Terminal, inside is installed with integrated electricity
Road plate, the reading-writing port that the surface-mounted integrated circuit center weld has core processing module, the core processing module are connected with number
According to memory module, COM1 is connected with ethernet interface module, and the other end of the ethernet interface module is connected with network interface card
Module, the core processing module are also associated with alarm module；The access interface of the interface module and Interface Terminal physics electricity
Gas connects, and interface module is built-in with packet interception module, and the input/output terminal of the packet interception module is connected with data
Packet filtering module and intrusion detection module.
Used as a kind of preferred technical scheme of the present invention, the core processing module includes main control chip, the master control core
Piece adopts ARM1136J chips, main control chip to be built-in with JATG debugging interfaces, and the power pins of main control chip are connected with power supply and fit
Orchestration, main control chip are also associated with crystal oscillating circuit and reset circuit.
Used as a kind of preferred technical scheme of the present invention, the data memory module includes storing translation interface, described deposits
The outfan of storage translation interface is connected with FLASH memory and SDRAM memory, and the FLASH memory is used for being operated
Instruction storage and operation, the SDRAM memory are used for carrying out data dynamic buffering.
Used as a kind of preferred technical scheme of the present invention, the ethernet interface module includes ethernet controller, described
Ethernet controller is connected with UART translation interfaces and codec, and UART translation interfaces are connected to the data interaction of interface module
End, codec are connected to main control chip communication ends.
Used as a kind of preferred technical scheme of the present invention, described including Current amplifier driver, the Current amplifier drives
The outfan of device is connected with buzzer and warning lamp, and the warning lamp is made using red LED lamp, and is embedded on protection shell
Surface.
Used as a kind of preferred technical scheme of the present invention, the interface module adopts 82562ET network card chips, and network interface card mould
RJ45 interfaces are connected with block, and existing communication network cable is connected to by RJ45 interfaces.
Used as a kind of preferred technical scheme of the present invention, the packet filtering module is used for carrying out packet by rule
Filter operation, including filtering rule controller module, packet filtering module and log pattern, the filtering rule controller module is used
In filtering rule parameter configuration is carried out, the packet filtering module is used for carrying out Packet Filtering operation, and the log pattern is used for
Carry out packet content record.
As a kind of preferred technical scheme of the present invention, the intrusion detection module be used for carrying out to current network main frame and
Ambient network ambient parameter is detected that, including data acquisition module and real-time monitoring module, the data acquisition module is used for
Digital independent is carried out from packet filtering module, and the real-time monitoring module is used for supervising the parameter for collecting in real time
Survey.
Compared with prior art, the invention has the beneficial effects as follows：The embedded hardware firewall device based on Linux is somebody's turn to do,
By arranging core processing module, using arm processor powerful and with low cost the characteristics of, reduce product promotion difficulty symbol
Close the market demand；By arranging ethernet interface module, using the plug-in mode of operation of the full duplex of two pieces of DM9000A, improve whole
The flexible performance of body；By arranging packet filtering module, can strictly be filtered by rule to accessing packet, be improved system
System security performance；By arranging invasion detection module, increase intrusion detection feature, further improve system stability security performance；
By arranging alarm module, physics sound and light alarm is carried out using buzzer and warning lamp, remind staff to be processed in time
Operation；The present invention adopts hardware designs fire wall, and cost of implementation is low, powerful, deployment little to the dependence of host operating system
Convenient.
Description of the drawings
Fig. 1 is modular structure schematic diagram of the present invention；
Fig. 2 is surface structure schematic diagram of the present invention；
Fig. 3 is interface module structural representation.
In figure：1- protects shell；2- Interface Terminals；3- surface-mounted integrated circuits；4- core processing module；5- data storage moulds
Block；6- ethernet interface modules；7- interface modules；8- packet interception modules；9- packet filtering modules；10- intrusion detections
Module；11- alarm modules；12- main control chips；13- power supply adaptors；14- crystal oscillating circuits；15- reset circuits；16- storages turn
Alias；17-FLASH memorizeies；18-SDRAM memorizeies；19-UART translation interfaces；20- codecs；21- Current amplifiers
Driver；22- buzzers；23- warning lamps；24- ethernet controllers；25- real-time monitoring modules；26- filtering rule controllers
Module；27- packet filtering modules；28- log patterns；29- data acquisition modules.
Specific embodiment
Accompanying drawing in below in conjunction with the embodiment of the present invention, to the embodiment of the present invention in technical scheme carry out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiment is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Embodiment：
Fig. 1 to Fig. 3 is referred to, the present invention provides a kind of technical scheme：A kind of embedded hardware fire wall based on Linux is filled
Put, including protecting the outer surface side of shell 1, the protection shell 1 to be inlaid with Interface Terminal 2, inside is installed with integrated
Circuit board 3, the reading-writing port that 3 center weld of the surface-mounted integrated circuit has core processing module 4, the core processing module 4 connect
Data memory module 5 is connected to, COM1 is connected with ethernet interface module 6, and the other end of the ethernet interface module 6 connects
Interface module 7 is connected to, the core processing module 4 is also associated with alarm module 11；The access interface of the interface module 7 with connect
The 2 physical electrical connection of mouth terminal, interface module 7 are built-in with packet interception module 8, the input of the packet interception module 8
Outfan is connected with packet filtering module 9 and intrusion detection module 10.
The core processing module 4 includes that main control chip 12, the main control chip 12 adopt ARM1136J chips, master control core
Piece 12 is built-in with JATG debugging interfaces, and the power pins of main control chip 12 are connected with power supply adaptor 13, and main control chip 12 also connects
It is connected to crystal oscillating circuit 14 and reset circuit 15；The data memory module 5 includes storing translation interface 16, and the storage conversion connects
The outfan of mouth 16 is connected with FLASH memory 17 and SDRAM memory 18, and the FLASH memory 17 is used for being operated
Instruction storage and operation, the SDRAM memory 18 are used for carrying out data dynamic buffering；The ethernet interface module 6 includes
Ethernet controller 24, the ethernet controller 24 are connected with UART translation interfaces 19 and codec 20, and UART conversions connect
Mouth 19 is connected to the data interaction end of interface module 7, and codec 20 is connected to 12 communication ends of main control chip；The alarm module
11 include that Current amplifier driver 21, the outfan of the Current amplifier driver 21 are connected with buzzer 22 and warning lamp 23,
The warning lamp 23 is made using red LED lamp, and is embedded in protection 1 upper surface of shell；
The interface module 7 to be adopted and be connected with RJ45 interfaces on 82562ET network card chips, and interface module 7, by RJ45 interfaces
It is connected to existing communication network cable；The packet filtering module 9 is used for carrying out packet filter operation by rule, wraps
Filtering rule controller module 26, packet filtering module 27 and log pattern 28 is included, the filtering rule controller module 26 is used for
Filtering rule parameter configuration is carried out, the packet filtering module 27 is used for carrying out Packet Filtering operation, and the log pattern 28 is used
In carrying out packet content record；The intrusion detection module 10 is used for carrying out joining current network main frame and ambient network environment
Number is detected that, including data acquisition module 29 and real-time monitoring module 25, the data acquisition module 29 is used for from packet
Digital independent is carried out in filtering module 9, and the real-time monitoring module 25 is used for carrying out real-time monitoring to the parameter for collecting.
The operation principle of the present invention：The protection shell 1 is adopted and is made from an insulative material, with good insulating properties, energy
Enough effective protection internal circuit configurations, the Interface Terminal 2 are used for connecting other network equipments outside, the surface-mounted integrated circuit 3
By all of becoming one of circuit module structure, integrated operation is convenient for, and improves integral systematicness,
The main control chip 12 adopts ARM1136J chips, the chip to be based on ARMv6 instruction set, and using 8 level production lines, dominant frequency exists
1.25DMIPS/MHz；There is extremely low power consumption, power voltage supply is appraised and decided with 1.8V, peripheral I/O mouths use 3.3V voltages, with 3 kinds
Low power consumption control mode, it might even be possible to all close functional for the institute in CPU in addition to wakeup logic, reduce power consumption.With
Other ARM chips are compared, and ARM1136J chips are integrated with more Peripheral Interfaces on piece.For example：External memory controller；
LCD, DMA, USB, SD, mmc card controller, UART, SPI interface；I2C bus control units and IIS bus control units, PWM timings
PLL on device, house dog, 117 exterior I/O mouths, 24 exterior interrupts, ADC and touch screen interfaces, real-time clock and piece
Clock is produced；Using integrated interface, it is convenient to carry out Function Extension；
The ethernet controller 24 is using two pieces of DM9000A compositions, the SRAM of built-in 16KB；The FLASH memory 17 is wrapped
Model E28F128J3A150 of NORFlash and NANDFLASH, NORFlash is included, capacity is 16MB；NANDFlash models
It is K9F1208U, capacity is 64MB；SDRAM uses K4S561632C, and using 2 parallel connections, capacity reaches 64MB；
（1）The core processing module 4 for whole device processing core, the main control chip 12 be used for carry out data collection,
Data processing and instruction send operation；The power supply adaptor 13 is used for connecting external power source, and external voltage is transformed into surely
Determine low-voltage direct electricity output to be powered to the power pins of main control chip 2；Crystal oscillator in the crystal oscillating circuit 14 can be provided
The system clock of 203M, it is ensured that machine cycle, realizes high-speed computation, and the reset circuit 15 is used for realizing forcing power-off
Reply bit manipulation by cable, prevent program fleet operation；
（2）(SuSE) Linux OS is equipped with the main control chip 12, corresponding processing routine and data are stored in data storage
In module 5, the storage translation interface 16 is used for realizing Data Format Transform, converts parallel data into serial data, described
NOR-type Flash features in FLASH memory 17 are that reliability is high, random read take speed is fast, it is adaptable to erase and program operations
Less and the occasion that directly executes code, i.e. application program directly can be run in Flash, it is not necessary to which that code is read system RAM
In；And NAND Flash can provide high cell density, high storage density, and the speed for writing and wiping can be reached
Also quickly, it is adaptable to which clear data storage and file are stored；The SDRAM memory 18 is mainly used as the operation of program in systems
Space, data and stack area.Upon power-up of the system, read at reseting address 0x0 of the CPU first from Flash and start code,
After the initialization of completion system, program code is called in SDRAM and is run, to improve the speed of service of system；Meanwhile, operation system
System, user stack and application program are also all loaded in SDRAM；
（3）Ethernet controller 24 in the ethernet interface module 6 is used for carrying out ethernet communication control, and Ethernet is controlled
Device 24 is used for receiving and dispatching buffering, and full duplex, transmitting-receiving reach 100Mb/s simultaneously；One of DM9000A receives the number arrived on network
According to bag, CPU process being given, then main frame being sent to by another piece, the processing data packets for being sent to external network from main frame are same
So；The UART translation interfaces 19 are used for realizing that full and half duplex transformat is changed that the codec 20 to be used for
It is encrypted coding and decoding operate；
Ethernet interface module 6 is the emphasis of embedded fire wall design；The design of this external hanging type is made departing from traditional network interface card
The pattern that main frame is inserted directly into pci interface, easy to use, completely disengage from main frame itself so that the topological structure of network is more
Flexibly, apply more extensive；
（4）Core work module of the interface module 7 for fire wall, 82562ET network card chips are linked into by RJ45 interfaces
In network to be monitored, be responsible for carrying out communicating with host network card, transmission data, the packet obtained from network card interface will first
Intercepted and captured by packet interception module 8, then decided whether to be received by upper-layer protocol by filtering module；
（5）The packet filtering module 9 is the core of fire wall, is responsible for filtering packet by rule, the filtration
Recipe controller module 26 is used for carrying out filtering rule parameter configuration, for the packet for allowing to pass through in rule, then packet filtering
Module 27 is processed by packet is sent to upper strata, for the regular packet for not allowing and passing through, then by data packet discarding, and will
Packet content writes log pattern 28；
（6）The intrusion detection module 10 passes through some for the network for detecting the parameter of host computer system or main frame place LAN
Some network abnormal situations (there may exist virus in such as network) in intrusion behavior or LAN can be entered by parameter
Row detection judges and reports to the police, it can be ensured that the safety of main frame operation；Packet of the data acquisition module 29 from after filtration
In carry out digital independent, and by the decoding data for reading, decoded data transfer to real-time monitoring module 25, institute
State real-time monitoring module 25 to be compared decoded data parameters and canonical parameter, judge whether abnormal, such as appearance occur
Abnormal condition, then send instruction to core processing module 4 immediately；
（7）Main control chip 12 in the core processing module 4 then triggers warning mould after receiving abnormal or invasion message immediately
Block 11, main control chip 12 output signal to Current amplifier driver 21, and Current amplifier driver 21 is by the current signal for receiving
It is amplified, then triggering buzzer 22 sends audio alarm, while will light warning lamp 23 sends light flash alarm.
Overall workflow：
1）Switch on power, carry out download program and debugging operations；
2）Connected with network cable, initially enters monitoring mode；
3）Automatically packet capturing, carries out monitor in real time pattern；
4）It was found that invasion, is intercepted immediately and is sent alarm.
The embedded hardware firewall device based on Linux is somebody's turn to do, by arranging core processing module 4, using arm processor
Powerful and with low cost the characteristics of, reduce product promotion difficulty accord with the demands of the market；By arranging ethernet interface module
6, using the plug-in mode of operation of the full duplex of two pieces of DM9000A, improve overall flexible performance；By arranging Packet Filtering mould
Block 9, can strictly be filtered by rule to accessing packet, be improved security of system energy；By arranging invasion detection module
10, increase intrusion detection feature, further improve system stability security performance；By arranging alarm module 11, using buzzer
22 and warning lamp 23 carry out physics sound and light alarm, remind in time staff to carry out process operation；The present invention adopts hardware designs
Fire wall, cost of implementation is low, powerful, deployment little to the dependence of host operating system is convenient.
Presently preferred embodiments of the present invention is the foregoing is only, not in order to limit the present invention, all in essence of the invention
Any modification, equivalent and improvement that is made within god and principle etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of embedded hardware firewall device based on Linux, including protecting shell（1）, the protection shell（1）Outer
Surface side is inlaid with Interface Terminal（2）, inside is installed with surface-mounted integrated circuit（3）, it is characterised in that：The integrated circuit
Plate（3）Center weld has core processing module（4）, the core processing module（4）Reading-writing port be connected with data storage mould
Block（5）, COM1 is connected with ethernet interface module（6）, the ethernet interface module（6）The other end be connected with network interface card
Module（7）, the core processing module（4）It is also associated with alarm module（11）；
The interface module（7）Access interface and Interface Terminal（2）Physical electrical connects, interface module（7）It is built-in with data
Bag interception module（8）, the packet interception module（8）Input/output terminal be connected with packet filtering module（9）And invasion
Detection module（10）.
2. a kind of embedded hardware firewall device based on Linux according to claim 1, it is characterised in that：Described
Core processing module（4）Including main control chip（12）, the main control chip（12）Using ARM1136J chips, main control chip（12）
It is built-in with JATG debugging interfaces, main control chip（12）Power pins be connected with power supply adaptor（13）, main control chip（12）Also
It is connected with crystal oscillating circuit（14）And reset circuit（15）.
3. a kind of embedded hardware firewall device based on Linux according to claim 1, it is characterised in that：Described
Data memory module（5）Including storing translation interface（16）, the storage translation interface（16）Outfan be connected with FLASH and deposit
Reservoir（17）And SDRAM memory（18）, the FLASH memory（17）For carrying out operational order storage and operation, described
SDRAM memory（18）For carrying out data dynamic buffering.
4. a kind of embedded hardware firewall device based on Linux according to claim 1, it is characterised in that：Described
Ethernet interface module（6）Including ethernet controller（24）, the ethernet controller（24）It is connected with UART translation interfaces
（19）And codec（20）, UART translation interfaces（19）It is connected to interface module（7）Data interaction end, codec（20）
It is connected to main control chip（12）Communication ends.
5. a kind of embedded hardware firewall device based on Linux according to claim 1, it is characterised in that：Described
Including Current amplifier driver（21）, the Current amplifier driver（21）Outfan be connected with buzzer（22）And warning lamp
（23）, the warning lamp（23）Made using red LED lamp, and be embedded in protection shell（1）Upper surface.
6. a kind of embedded hardware firewall device based on Linux according to claim 1, it is characterised in that：Described
Interface module（7）Using 82562ET network card chips, and interface module（7）On be connected with RJ45 interfaces, connected by RJ45 interfaces
To existing communication network cable.
7. a kind of embedded hardware firewall device based on Linux according to claim 1, it is characterised in that：Described
Packet filtering module（9）For carrying out filter operation by rule to packet, including filtering rule controller module（26）, bag
Filtering module（27）And log pattern（28）, the filtering rule controller module（26）Match somebody with somebody for carrying out filtering rule parameter
Put, the packet filtering module（27）For carrying out Packet Filtering operation, the log pattern（28）For carrying out in packet
Hold record.
8. a kind of embedded hardware firewall device based on Linux according to claim 1, it is characterised in that：Described
Intrusion detection module（10）For carrying out detecting current network main frame and ambient network ambient parameter, including data acquisition
Module（29）And real-time monitoring module（25）, the data acquisition module（29）For from packet filtering module（9）In carry out
Digital independent, the real-time monitoring module（25）Real-time monitoring is carried out for the parameter to collecting.
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| CN201611049130.XA CN106506517A (en) | 2016-11-25 | 2016-11-25 | A kind of embedded hardware firewall device based on Linux |
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| CN201611049130.XA CN106506517A (en) | 2016-11-25 | 2016-11-25 | A kind of embedded hardware firewall device based on Linux |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104989A (en) * | 2017-07-12 | 2017-08-29 | 安徽博森互联网科技有限公司 | A kind of fire wall intruding detection system |
| CN108375946A (en) * | 2018-03-22 | 2018-08-07 | 北京奔驰汽车有限公司 | A kind of information spy device and industrial control system |
| CN109274648A (en) * | 2018-08-28 | 2019-01-25 | 西安工业大学 | A kind of movable type cable firewall device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070050758A1 (en) * | 2005-07-29 | 2007-03-01 | International Business Machines Corporation | Creating a behavioral model of a hardware device for use in a simulation environment |
| CN102307161A (en) * | 2011-08-26 | 2012-01-04 | 广东电网公司珠海供电局 | Distribution network embedded telecontrol communication security gateway |
-
2016
- 2016-11-25 CN CN201611049130.XA patent/CN106506517A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070050758A1 (en) * | 2005-07-29 | 2007-03-01 | International Business Machines Corporation | Creating a behavioral model of a hardware device for use in a simulation environment |
| CN102307161A (en) * | 2011-08-26 | 2012-01-04 | 广东电网公司珠海供电局 | Distribution network embedded telecontrol communication security gateway |
Non-Patent Citations (2)
| Title |
|---|
| 许旿，刘航，慕俊德: ""一种嵌入式安全网卡总体设计"", 《西北工业大学学报》 * |
| 陈兵，张峰，丁秋林: ""基于ARM处理器的嵌入式防火墙涉及与实现"", 《计算机工程》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104989A (en) * | 2017-07-12 | 2017-08-29 | 安徽博森互联网科技有限公司 | A kind of fire wall intruding detection system |
| CN108375946A (en) * | 2018-03-22 | 2018-08-07 | 北京奔驰汽车有限公司 | A kind of information spy device and industrial control system |
| CN109274648A (en) * | 2018-08-28 | 2019-01-25 | 西安工业大学 | A kind of movable type cable firewall device |
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