CN105205418B - A kind of keyboard and mouse one-way transmission apparatus - Google Patents
A kind of keyboard and mouse one-way transmission apparatus Download PDFInfo
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- CN105205418B CN105205418B CN201410286435.7A CN201410286435A CN105205418B CN 105205418 B CN105205418 B CN 105205418B CN 201410286435 A CN201410286435 A CN 201410286435A CN 105205418 B CN105205418 B CN 105205418B
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Abstract
The invention provides the technical scheme of a kind of keyboard and mouse one-way transmission apparatus, including the usb interface module for connecting mouse and keyboard respectively, usb interface module detects that the real-time monitoring module of user's mouse and keyboard is connected with being used for, real-time monitoring module is connected by one-way transmission apparatus with host communication module, host communication module passes through an interface and main frame connecting communication, in addition, described real-time monitoring module is also connected with a sound and light alarm module.The data of keyboard and mouse carry out one-way transmission by light T-R tube in the device of the program, it is ensured that data can only flow to main frame.Prevent from stealing data or destruction data from keyboard and mouse, the HID classes keyboard and mouse for using user have carried out real-time monitoring, and off-gauge HID classes keyboard and mouse are isolated and alarmed.
Description
Technical field：
The present invention relates to a kind of keyboard for computer and mouse one-way transmission apparatus.
Background technology：
Keyboard and mouse is our the most frequently used input equipments, is also that we generally believe very safe common apparatus, its
Potential safety hazard does not draw attention always, and research and development are with the keyboard and mouse for storing and attacking function, and in technology without any difficulty, it is endangered
As evil is ferried with USB flash disk, and it is more hidden, detection is difficult, so the potential safety hazard that keyboard and mouse is brought can not be ignored.
The network of different security domains will be used in the current Chinese government, military project, the Office Information of enterprise, is generally divided into
Outer net, Intranet, classified network.Transmission information is needed between the network of different security domains, it is necessary to the master of blocked operation different network domains
Machine.User is intended to a technological means efficiently, safe can be in realization side in the state of security isolation between network
Just data transfer, easily operates the main frame of different network domains.Using a set of keyboard, mouse two isolation networks main frame table
Free switching operation is carried out between face.Between two desktops, quickly carried out using easy means such as mouse quick sliding, shortcuts
Intranet and extranet desktop operating environment switches.The unidirectional mouse-keyboard handoff technique of high security high availability is studied, exactly facilitates user
Under conditions of using a set of keyboard and mouse, different safe domain host tables are easily operated.
The content of the invention：
The purpose of the present invention provides a kind of keyboard and mouse one-way transmission aiming at the deficiency present in prior art
The data of keyboard and mouse carry out one-way transmission by light T-R tube in the technical scheme of device, the device of the program, it is ensured that number
According to main frame can only be flowed to.Prevent from stealing data or destruction data from keyboard and mouse, the HID classes keyboard used user and
Mouse has carried out real-time monitoring, and off-gauge HID classes keyboard and mouse are isolated and alarmed.
This programme is achieved by the following technical measures：A kind of keyboard and mouse one-way transmission apparatus, including for
The usb interface module of mouse and keyboard is connected respectively, it is characterized in that：Usb interface module detects user's mouse and keyboard with being used for
Real-time monitoring module connection, real-time monitoring module is connected by one-way transmission apparatus with host communication module, host communication mould
Block is by an interface and main frame connecting communication, in addition, described real-time monitoring module is also connected with a sound and light alarm module.
One-way transmission apparatus include first triode VT1, first triode VT1 base stage by first resistor R1 with
Real-time monitoring module is connected, and first triode VT1 colelctor electrode is connected by second resistance R2 with VCC, first triode
VT1 colelctor electrode is connected by 3rd resistor R3 with second triode VT2 base stage, first triode VT1 emitter stage
Ground connection, first triode VT1 emitter stage is connected with photoelectrical coupler OC 2 pin, and second triode VT2 emitter stage connects
Ground, second triode VT2 colelctor electrode is connected by the 4th resistance R4 with photoelectrical coupler OC 1 pin, an electric capacity C and the 4th
Resistance R4 is in parallel, and photoelectrical coupler OC 4 pin are connected with VCC, photoelectrical coupler OC 3 pin and the 3rd triode VT3 base
Pole is connected, and the 3rd triode VT3 grounded emitter, the 3rd triode VT3 colelctor electrode passes through the 5th resistance R5 and VCC
Connection, the 3rd triode VT3 colelctor electrode is connected with the 4th triode VT4 base stage, the 4th triode VT4 transmitting
Pole is grounded, and the 4th triode VT4 colelctor electrode is connected by the 6th resistance R6 with VCC, the 4th triode VT4 colelctor electrode
It is connected with host communication module.
Described sound and light alarm module includes a light emitting diode D1 and a buzzer M, light emitting diode D1 one end are grounded,
The other end is connected by the 8th resistance R8 with the 5th triode VT5 colelctor electrode, the 5th triode VT5 base stage with real time
Monitoring module is connected；Buzzer M is connected between VCC and the 6th triode VT6 colelctor electrode, there is the 9th resistance R9 and buzzing
Device M is in parallel, the 6th triode VT6 grounded emitter, and the 6th triode VT6 base stage passes through the tenth resistance R10 and the
Seven triode VT7 colelctor electrode connection, the 7th triode VT7 base stage is connected with real-time monitoring module.
Described usb interface module is the usb interface module with HID classes keyboard and mouse.
Described usb interface module is two, is respectively used to connection keyboard and mouse.
Described interface is USB interface.
The beneficial effect of this programme can be learnt according to the narration to such scheme, due in this scenario due in the program
In have usb interface module, can be in order to connecting mouse and keyboard；Real-time monitoring module is used to monitor in real time and real-time detection user
Mouse and keyboard whether be standard keyboard and mouse, prevent virus and wooden horse from importing destruction data using keyboard and mouse；It is single
Photoelectrical coupler has been used into transmitting device, the one-way of data transfer direction is so ensured that, has prevented data from key
Theft is walked in disk and mouse；Host communication module is used to communicate with PC.During work, real-time monitoring module detection mouse and keyboard
Whether be standard, when being not standard, alarm module will be controlled to be alarmed, if during standard, will gather keyboard and
The key value information of mouse is transmitted host communication module by one-way transmission apparatus and then is transferred to main frame, it can be seen that,
Compared with prior art, with prominent substantive distinguishing features and significant progress, its beneficial effect implemented is also aobvious to the present invention
And be clear to.
Brief description of the drawings：
Fig. 1 is the theory diagram of the specific embodiment of the invention.
Fig. 2 is the circuit diagram of the specific embodiment of the invention.
In figure, 1 is mouse and keyboard, and 2 be usb interface module, and 3 be real-time monitoring module, and 4 be one-way transmission apparatus, and 5 are
Host communication module, 6 be sound and light alarm module, and 7 be main frame.
Embodiment：
For the technical characterstic for illustrating this programme can be understood, below by an embodiment, and its accompanying drawing is combined, it is right
This programme is illustrated.
By accompanying drawing as can be seen that a kind of keyboard and mouse one-way transmission apparatus of this programme, including for connecting respectively
The usb interface module 2 of mouse and keyboard 1, usb interface module 2 and the real-time monitoring module 3 for detecting user's mouse and keyboard
Connection, real-time monitoring module 3 is connected by one-way transmission apparatus 4 with host communication module 5, and host communication module 5 connects by one
Mouth and the connecting communication of main frame 7, in addition, described real-time monitoring module 3 is also connected with a sound and light alarm module 6.
The base stage that one-way transmission apparatus 4 includes first triode VT1, first triode VT1 passes through first resistor R1
It is connected with real-time monitoring module, first triode VT1 colelctor electrode is connected by second resistance R2 with VCC, first three pole
Pipe VT1 colelctor electrode is connected by 3rd resistor R3 with second triode VT2 base stage, first triode VT1 transmitting
Pole is grounded, and first triode VT1 emitter stage is connected with photoelectrical coupler OC 2 pin, second triode VT2 emitter stage
Ground connection, second triode VT2 colelctor electrode is connected by the 4th resistance R4 with photoelectrical coupler OC 1 pin, an electric capacity C and the
Four resistance R4 are in parallel, and photoelectrical coupler OC 4 pin are connected with VCC, photoelectrical coupler OC 3 pin and the 3rd triode VT3's
Base stage is connected, the 3rd triode VT3 grounded emitter, the 3rd triode VT3 colelctor electrode by the 5th resistance R5 with
VCC connections, the 3rd triode VT3 colelctor electrode is connected with the 4th triode VT4 base stage, the 4th triode VT4's
Grounded emitter, the 4th triode VT4 colelctor electrode is connected by the 6th resistance R6 with VCC, the 4th triode VT4 collection
Electrode is connected with host communication module.
Described sound and light alarm module 6 includes a light emitting diode D1 and a buzzer M, light emitting diode D1 mono- are terminated
Ground, the other end is connected by the 8th resistance R8 with the 5th triode VT5 colelctor electrode, the 5th triode VT5 base stage with
Real-time monitoring module is connected；Buzzer M is connected between VCC and the 6th triode VT6 colelctor electrode, have the 9th resistance R9 with
Buzzer M is in parallel, and the 6th triode VT6 grounded emitter, the 6th triode VT6 base stage passes through the tenth resistance R10
It is connected with the 7th triode VT7 colelctor electrode, the 7th triode VT7 base stage is connected with real-time monitoring module.
Described usb interface module 2 is the usb interface module with HID classes keyboard and mouse.
Described usb interface module 2 is two, is respectively used to connection keyboard and mouse.
Described interface is USB interface.Described host communication module uses single-chip microcomputer nuc122zc1.Mould is monitored in real time
The USB control chips cy7c67300-100ai that block is used.
The present invention is not limited in above-mentioned embodiment, essential scope of the those of ordinary skill in the art in the present invention
The variations, modifications, additions or substitutions inside made, should also belong to protection scope of the present invention.
Claims (7)
1. a kind of keyboard and mouse one-way transmission apparatus, including for connecting the usb interface module of mouse and keyboard respectively, it is special
Levying is：Usb interface module detects that the real-time monitoring module of user's mouse and keyboard is connected with being used for, and real-time monitoring module passes through list
It is connected to transmitting device with host communication module, host communication module is by an interface and main frame connecting communication, in addition, described
Real-time monitoring module is also connected with a sound and light alarm module, and one-way transmission apparatus includes first triode VT1, first three pole
Pipe VT1 base stage is connected by first resistor R1 with real-time monitoring module, and first triode VT1 colelctor electrode passes through the second electricity
Resistance R2 is connected with VCC, and first triode VT1 colelctor electrode is connected by 3rd resistor R3 and second triode VT2 base stage
Connect, first triode VT1 grounded emitter, first triode VT1 emitter stage connects with photoelectrical coupler OC 2 pin
Connect, second triode VT2 grounded emitter, second triode VT2 colelctor electrode passes through the 4th resistance R4 and photoelectricity coupling
Clutch OC 1 pin connection, an electric capacity C is in parallel with the 4th resistance R4, and photoelectrical coupler OC 4 pin are connected with VCC, photoelectrical coupler
OC 3 pin are connected with the 3rd triode VT3 base stage, the 3rd triode VT3 grounded emitter, the 3rd triode
VT3 colelctor electrode is connected by the 5th resistance R5 with VCC, the 3rd triode VT3 colelctor electrode and the 4th triode VT4's
Base stage is connected, the 4th triode VT4 grounded emitter, the 4th triode VT4 colelctor electrode by the 6th resistance R6 with
VCC connections, the 4th triode VT4 colelctor electrode is connected with host communication module.
2. keyboard according to claim 1 and mouse one-way transmission apparatus, it is characterized in that：Described host communication module is adopted
Use single-chip microcomputer nuc122zc1.
3. keyboard according to claim 1 and mouse one-way transmission apparatus, it is characterized in that：What real-time monitoring module was used
USB control chips cy7c67300-100ai.
4. keyboard according to claim 1 and mouse one-way transmission apparatus, it is characterized in that：Described sound and light alarm module
Including a light emitting diode D1 and a buzzer M, light emitting diode D1 one end ground connection, the other end passes through the 8th resistance R8 and the 5th
Individual triode VT5 colelctor electrode connection, the 5th triode VT5 base stage is connected with real-time monitoring module；Buzzer M connects
Between VCC and the 6th triode VT6 colelctor electrode, there is the 9th resistance R9 in parallel with buzzer M, the 6th triode VT6
Grounded emitter, the colelctor electrode that the 6th triode VT6 base stage passes through the tenth resistance R10 and the 7th triode VT7 connects
Connect, the 7th triode VT7 base stage is connected with real-time monitoring module.
5. keyboard according to claim 1 and mouse one-way transmission apparatus, it is characterized in that：Described usb interface module is
With HID classes keyboard and the usb interface module of mouse.
6. keyboard according to claim 5 and mouse one-way transmission apparatus, it is characterized in that：Described usb interface module is
Two, it is respectively used to connection keyboard and mouse.
7. keyboard according to claim 1 and mouse one-way transmission apparatus, it is characterized in that：Described interface is USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286435.7A CN105205418B (en) | 2014-06-18 | 2014-06-18 | A kind of keyboard and mouse one-way transmission apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410286435.7A CN105205418B (en) | 2014-06-18 | 2014-06-18 | A kind of keyboard and mouse one-way transmission apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105205418A CN105205418A (en) | 2015-12-30 |
| CN105205418B true CN105205418B (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410286435.7A Active CN105205418B (en) | 2014-06-18 | 2014-06-18 | A kind of keyboard and mouse one-way transmission apparatus |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107015939A (en) * | 2017-04-12 | 2017-08-04 | 中孚信息股份有限公司 | A kind of unidirectional system and method for obtaining equipment identification information |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101504710A (en) * | 2009-03-26 | 2009-08-12 | 北京鼎普科技股份有限公司 | Method and equipment for security of intranet computer |
| CN201946003U (en) * | 2010-11-26 | 2011-08-24 | 李天明 | Double-computer safety switching device |
| CN102239674A (en) * | 2008-08-19 | 2011-11-09 | 高赛科实验室公司 | Isolated multi-network computer system and apparatus |
| WO2012095852A2 (en) * | 2011-01-16 | 2012-07-19 | High Sec Labs Ltd. | Secure km switch |
-
2014
- 2014-06-18 CN CN201410286435.7A patent/CN105205418B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239674A (en) * | 2008-08-19 | 2011-11-09 | 高赛科实验室公司 | Isolated multi-network computer system and apparatus |
| CN101504710A (en) * | 2009-03-26 | 2009-08-12 | 北京鼎普科技股份有限公司 | Method and equipment for security of intranet computer |
| CN201946003U (en) * | 2010-11-26 | 2011-08-24 | 李天明 | Double-computer safety switching device |
| WO2012095852A2 (en) * | 2011-01-16 | 2012-07-19 | High Sec Labs Ltd. | Secure km switch |
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| Publication number | Publication date |
|---|---|
| CN105205418A (en) | 2015-12-30 |
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Address after: Xinluo Avenue high tech Zone of Ji'nan City, Shandong province 250101 orsus No. 1166 building 15-16 Applicant after: Shandong Zhongfu Information Industry Co., Ltd. Address before: 250101 Shandong city of Ji'nan province high tech Zone Shun Road No. 2000 Shun Tai Plaza No. 9 Building 8 layer Applicant before: Shandong Zhongfu Information Industry Co., Ltd. |
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