CN107015939A - A kind of unidirectional system and method for obtaining equipment identification information - Google Patents
A kind of unidirectional system and method for obtaining equipment identification information Download PDFInfo
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- CN107015939A CN107015939A CN201710237236.0A CN201710237236A CN107015939A CN 107015939 A CN107015939 A CN 107015939A CN 201710237236 A CN201710237236 A CN 201710237236A CN 107015939 A CN107015939 A CN 107015939A
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- identification information
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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Abstract
The present invention provides a kind of unidirectional system for obtaining equipment identification information, main control module receives the access conditions of outside input, according to the access conditions of reception, the equipment to be accessed of access conditions is closed by device selector selector, and read the identification information of identification information generation module generation, by the light list pathway being connected with the equipment to be accessed, the identification information is transferred to the equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；Equipment to be accessed sets up data interaction with protection device.The unidirectional system for obtaining equipment identification information effectively avoids protection device from being re-write by equipment to be accessed, by lawless people to steal data.Light list pathway is data one-way transmission, and data can only be passed to simulating storage module one end by main control module one end, it is impossible to reverse transfer.Data are prevented to be exported by protection device, while the physical isolation between realizing intranet and extranet, prevents from stealing intranet data by outer net.
Description
Technical field
The present invention relates to data processing field, more particularly to a kind of unidirectional system and method for obtaining equipment identification information.
Background technology
EDID:Extended Display Identification Data (extending display identification data) are a kind of
VESA standard data formats, wherein including the parameter about display device and its performance, including supplier information, maximum image
Size, color set, factory default put, the limitation of frequency range and display name and sequence number character string.These information
It is stored in display sections, for being communicated by a DDC (Display Data Channel) with system, this is
Carried out between display and PC graphics adapters.DDC uses what I2C agreements were communicated.I2C is one two-way
Transmission channel, can be with two-way transceiving data, when the main frame in two different information security domains shares display device.One end master
Machine can be write data into the EDID of display device, and the main frame of the other end can be obtained by reading the EDID of display device
To these data, sensitive information leakage is caused.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, it is an object of the present invention to provide a kind of unidirectional equipment that obtains is distinguished
Know the system of information, including：Protection device, recognizes channel unit, multiple equipment to be accessed；
Protection device is connected with each equipment to be accessed respectively by recognizing channel unit；
Identification channel unit includes：Main control module, device selector and the light list conducting being adapted with number of devices to be accessed
Road；
Main control module is connected with device selector and protection device respectively, and device selector is set by light list pathway with to be accessed
Standby connection；
Protection device is provided with identification information generation module；Equipment to be accessed is provided with simulating storage module and data processing unit；
Identification information generation module is used for the control instruction according to main control module, and generation meets the identification information of access conditions；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the equipment to be accessed of access conditions by device selector selector, and identification information life is read
The identification information generated into module, by the light list pathway being connected with the equipment to be accessed, the identification information is transmitted
To the equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The equipment to be accessed for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access
The change identification information of condition, by the light list pathway being connected with the equipment to be accessed, the change identification information is passed
Defeated to arrive the equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the identification information, and data processing unit makes described waiting
Enter equipment and set up data interaction with protection device.
Preferably, the protection device is display device, and multiple equipment to be accessed are multiple main frames to be accessed；
Display device is connected with each main frame to be accessed respectively by recognizing channel unit；
The identification information generation module of display device is used for the control instruction according to main control module, and generation meets access conditions
EDID information；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame of access conditions by device selector selector, and identification information generation module is read
The EDID information of generation, by the light list pathway being connected with the main frame, by the EDID information transfers to the main frame, the master
Machine stores the EDID information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The main frame for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
EDID information is changed,, should by the change EDID information transfers to the main frame by the light list pathway being connected with the main frame
Main frame stores the EDID information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the EDID information, and data processing unit makes main frame with showing
Show that equipment sets up data interaction.
Preferably, in addition to：Video data channel unit；
Video data channel unit is provided with video list pathway, HDMI-VGA modules, VGA-HDMI modules；Main frame is additionally provided with video card
The USB interface that module is connected with video card module；Display device is additionally provided with video processing module；
USB interface is connected with VGA-HDMI modules, and VGA-HDMI modules are connected by video list pathway with HDMI-VGA modules,
HDMI-VGA modules are connected with video processing module；
Video card module is used to carry out data signal and analog signal conversion process to vision signal, and passes sequentially through VGA-HDMI moulds
Block, video list pathway, HDMI-VGA module transfers to video processing module；Video processing module enters the vision signal of reception
Row is handled and shown.
Preferably, the protection device is Master Keyboard, and multiple equipment to be accessed are multiple main frames to be accessed；
Master Keyboard is connected with each main frame to be accessed respectively by recognizing channel unit；
The identification information generation module of Master Keyboard is used for the control instruction according to main control module, and generation meets the keyboard of access conditions
Identification information；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame of access conditions by device selector selector, and identification information generation module is read
The keyboard identification information of generation, by the light list pathway being connected with the main frame, by the keyboard identification information transfer to should
Main frame, the main frame stores the keyboard identification information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The main frame for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
Keyboard identification information is changed, by the light list pathway being connected with the main frame, the change keyboard identification information is transferred to
The main frame, the main frame stores the keyboard identification information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the keyboard identification information, and data processing unit makes main frame
Data interaction is set up with Master Keyboard.
Preferably, the protection device is main mouse, and multiple equipment to be accessed are multiple main frames to be accessed；
Main mouse is connected with each main frame to be accessed respectively by recognizing channel unit；
The identification information generation module of main mouse is used for the control instruction according to main control module, and generation meets the mouse of access conditions
Identification information；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame of access conditions by device selector selector, and identification information generation module is read
The mouse identification information of generation, by the light list pathway being connected with the main frame, this is transferred to by the mouse identification information
Main frame, the main frame stores the mouse identification information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The main frame for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
Mouse identification information is changed, by the light list pathway being connected with the main frame, the change mouse identification information is transferred to
The main frame, the main frame stores the mouse identification information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the mouse identification information, and data processing unit makes main frame
Data interaction is set up with main mouse.
Preferably, identification channel unit also includes：For making identification channel unit connect the power supply adaptor of external power.
A kind of unidirectional method for obtaining equipment identification information, method includes：
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the equipment to be accessed of access conditions by device selector selector, and reads identification information generation module
The identification information of generation, by the light list pathway being connected with the equipment to be accessed, is transferred to this by the identification information and treats
Access device；
The equipment to be accessed stores the identification information received using simulating storage module；
Simulating storage module is received after the identification information, and the equipment to be accessed sets up data interaction with protection device；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The equipment to be accessed for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet change access conditions
Identification information is changed, by the light list pathway being connected with the equipment to be accessed, the change identification information is transferred to this
Equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
Simulating storage module is received after the identification information, and the equipment to be accessed sets up data interaction with protection device.
Preferably, protection device is display device, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the EDID information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
EDID information, by the light list pathway being connected with the main frame, by the EDID information transfers to the main frame；
The main frame stores the EDID information received using simulating storage module；
Simulating storage module is received after the EDID information, and the main frame sets up data interaction with display device；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change for changing access conditions
EDID information, by the light list pathway being connected with the main frame, by the change EDID information transfers to the main frame, the main frame
The EDID information received is stored using simulating storage module；
Simulating storage module is received after the EDID information, and the main frame sets up data interaction with display device.
Preferably, the protection device is Master Keyboard, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the keyboard identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
Keyboard identification information, by the light list pathway being connected with the main frame, by the keyboard identification information transfer to the main frame；
The main frame stores the keyboard identification information received using simulating storage module；
Simulating storage module is received after the keyboard identification information, and the main frame sets up data interaction with Master Keyboard；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change key for changing access conditions
Disk identification information, by the light list pathway being connected with the main frame, the main frame is transferred to by the change keyboard identification information,
The main frame stores the keyboard identification information received using simulating storage module；
Simulating storage module is received after the keyboard identification information, and the main frame sets up data interaction with Master Keyboard.
Preferably, the protection device is main mouse, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the mouse identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
Mouse identification information, by the light list pathway being connected with the main frame, the main frame is transferred to by the mouse identification information；
The main frame stores the mouse identification information received using simulating storage module；
Simulating storage module is received after the mouse identification information, and the main frame sets up data interaction with main mouse；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change mouse for changing access conditions
Identification information is marked, by the light list pathway being connected with the main frame, the change mouse identification information is transferred to the main frame,
The main frame stores the mouse identification information received using simulating storage module；
Simulating storage module is received after the mouse identification information, and the main frame sets up data interaction with main mouse.
As can be seen from the above technical solutions, the present invention has advantages below：
The unidirectional system for obtaining equipment identification information effectively avoids protection device from being re-write by equipment to be accessed, by not legal person
Member is to steal data.Light list pathway is data one-way transmission, and data can only be passed to simulating storage mould by main control module one end
Block one end, it is impossible to reverse transfer.Data are prevented to be exported by protection device, while the physical isolation between realizing intranet and extranet,
Prevent from stealing intranet data by outer net.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, it will make simple to the required accompanying drawing used in description below
Introduce on ground, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ordinary skill
For personnel, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the unidirectional system overall schematic for obtaining equipment identification information；
Fig. 2 is video data display schematic diagram；
Fig. 3 is the unidirectional method flow diagram for obtaining equipment identification information.
Embodiment
, below will be with specific to enable goal of the invention, feature, the advantage of the present invention more obvious and understandable
Embodiment and accompanying drawing, the technical scheme that the present invention is protected are clearly and completely described, it is clear that implementation disclosed below
Example is only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in this patent, the common skill in this area
All other embodiment that art personnel are obtained under the premise of creative work is not made, belongs to the model of this patent protection
Enclose.
The present embodiment provides a kind of unidirectional system for obtaining equipment identification information, including：Protection device, recognizes passage list
Member, multiple equipment to be accessed；
Protection device is connected with each equipment to be accessed respectively by recognizing channel unit；
Identification channel unit includes：Main control module, device selector and the light list conducting being adapted with number of devices to be accessed
Road；
Main control module is connected with device selector and protection device respectively, and device selector is set by light list pathway with to be accessed
Standby connection；
Protection device is provided with identification information generation module；Equipment to be accessed is provided with simulating storage module and data processing unit；
Identification information generation module is used for the control instruction according to main control module, and generation meets the identification information of access conditions；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the equipment to be accessed of access conditions by device selector selector, and identification information life is read
The identification information generated into module, by the light list pathway being connected with the equipment to be accessed, the identification information is transmitted
To the equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The equipment to be accessed for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access
The change identification information of condition, by the light list pathway being connected with the equipment to be accessed, the change identification information is passed
Defeated to arrive the equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the identification information, and data processing unit makes described waiting
Enter equipment and set up data interaction with protection device.
In order to absolutely prove embodiment of the present invention, protection device specifically use display device, keyboard, mouse for
Example, but it is not limited to above-mentioned three kinds of equipment.Multiple equipment to be accessed are multiple main frames to be accessed.Main frame can include the master of Intranet
The main frame of machine or outer net, can also be the main frame that intranet and extranet have concurrently.The so unidirectional system for obtaining equipment identification information
The data that intranet and extranet equipment can be sent separately are handled, it is ensured that the security of data processing.
Light list pathway is data one-way transmission, and data can only be passed to simulating storage module one end by main control module one end,
It is unable to reverse transfer.Data are prevented to be exported by protection device, while the physical isolation between realizing intranet and extranet, prevents from passing through
Outer net steals intranet data.
The outside input access conditions that main control module is received, can be set according to the behaviour in service of user.It is such as waiting
Enter equipment and be arranged on a certain specific region, user needs to transfer the data of the equipment to be accessed, by way of man-machine interaction
Access conditions is inputted to main control module, main control module makes identification information generation module according to the control of main control module according to access conditions
System instruction, generation meets the identification information of access conditions；Finally reach the equipment to be accessed and set up data interaction with protection device.
Can also be that user needs to transfer the data message of a certain equipment storage to be accessed, such as video information, image information etc..It is main
Control module makes identification information generation module according to the control instruction of main control module according to access conditions, and generation meets access conditions
Identification information；Finally reach the equipment to be accessed and set up data interaction with protection device.
User is set address information or treats access device and is provided with to equipment to be accessed in advance by system
Specific characteristic information, it is corresponding to be accessed that user makes main control module be accessed according to the access conditions of input according to default information
Equipment.
In the present embodiment, as shown in Figure 1 and Figure 2, the protection device is display device 1, and multiple equipment to be accessed are waiting
The multiple main frames 8 entered；
Display device 1 is connected with each main frame 8 to be accessed respectively by recognizing channel unit；
The identification information generation module of display device 1 is used for the control instruction according to main control module 4, and generation meets access conditions
EDID information；
Main control module 4 is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame 8 of access conditions by the selector of device selector 5, and identification information generation mould is read
The EDID information of block generation, by the light list pathway 6 being connected with the main frame 8, by the EDID information transfers to the main frame
8, the main frame 8 stores the EDID information received using simulating storage module 7；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector 5
The main frame 8 for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
Change EDID information, by the light list pathway 6 being connected with the main frame 8, by the change EDID information transfers to the master
Machine 8, the main frame 8 stores the EDID information received using simulating storage module 7；
Data processing unit be used for when simulating storage module 7 receives the EDID information after, data processing unit make main frame 8 and
Display device 1 sets up data interaction.
Identification channel unit also includes：For making identification channel unit connect the power supply adaptor 9 of external power.
EDID: Extended Display Identification Data（Extending display identification data）It is a kind of
VESA standard data formats, wherein big comprising the parameter about monitor and its performance, including supplier information, maximum image
Small, color is set, factory default is put, the limitation of frequency range and display name and the character string of sequence number, and EDID is by 128
Individual byte composition.
EDID is a kind of VESA standard data formats, wherein comprising the parameter about display device and its performance, including supply
Answer business's information, maximum image size, color set, factory default put, the limitation of frequency range and display name and sequence number
Character string.These information are stored in display sections, for passing through a DDC (Display Data Channel)
Communicated with system, this is carried out between display and PC graphics adapters.DDC uses I2C agreements to carry out
Communication.I2C is a two-way transmission channel, can be with two-way transceiving data, when the main frame in two different information security domains
When sharing display device.One end main frame can be write data into the EDID of display device, and the main frame of the other end can pass through
The EDID for reading display device gets these data, causes sensitive information leakage.In the environment that information security requires higher
Situation is not allow to occur in this, and EDID data unidirectionally can only pass to main frame from display device and can not be rewritten by main frame.
System also includes：Video data channel unit；Video data channel unit is provided with video list pathway 13, HDMI-
VGA modules 14, VGA-HDMI modules 12；Main frame 8 is additionally provided with the USB interface 11 that video card module is connected with video card module；Display is set
Standby 1 is additionally provided with video processing module；
USB interface 11 is connected with VGA-HDMI modules 12, and VGA-HDMI modules 12 pass through video list pathway 13 and HDMI-VGA
Module 14 is connected, and HDMI-VGA modules 14 are connected with video processing module；
Video card module is used to carry out data signal and analog signal conversion process to vision signal, and passes sequentially through VGA-HDMI moulds
Block 12, video list pathway 13, HDMI-VGA modules 14 are transmitted to video processing module；Video processing module is by the video of reception
Signal is handled and shown.
Video list pathway 13 realizes the one-way transmission of video data, among VGA transmitting procedure, including：R、G、B
Tricolor signal and the data lines of row field sync signal five.And HDMI is flank speed 5Gbps data transfer bandwidth.Can be with
Transmit the high-resolution vision signal of audio signal machine without compression.
Light list pathway uses serial ports light half-duplex channel.System effectively avoids the EDID of display device from being write again by main frame
Enter.So as to form a data channel between the main frame of display device is shared, by lawless people to steal data.Equally may be used
To avoid repairing, scrapping display device, data read-out will be write by lawless people.Can be with the number of significantly more efficient protected host
According to.
In the present embodiment, the protection device is Master Keyboard 2, and multiple equipment to be accessed are multiple main frames 8 to be accessed；
Master Keyboard 2 is connected with each main frame to be accessed respectively by recognizing channel unit；
The identification information generation module of Master Keyboard 2 is used for the control instruction according to main control module 4, and generation meets the key of access conditions
Disk identification information；
Main control module 4 is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame of access conditions by device selector selector, and identification information generation module is read
The keyboard identification information of generation, by the light list pathway 6 being connected with the main frame, by the keyboard identification information transfer to should
Main frame 8, the main frame 8 stores the keyboard identification information received using simulating storage module 7；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector 5
The main frame 8 for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
Change keyboard identification information, by the light list pathway 6 being connected with the main frame 8, the change keyboard identification information is passed
Defeated to arrive the main frame 8, the main frame 8 stores the keyboard identification information received using simulating storage module 7；Data processing unit is used to work as
Simulating storage module 7 is received after the keyboard identification information, and data processing unit makes main frame 8 set up data friendship with Master Keyboard 2
Mutually.
In the present embodiment, the protection device is main mouse 3, and multiple equipment to be accessed are multiple main frames 8 to be accessed；
Main mouse 3 is connected with each main frame 8 to be accessed respectively by recognizing channel unit；
The identification information generation module of main mouse 3 is used for the control instruction according to main control module 4, and generation meets the mouse of access conditions
Mark identification information；
Main control module 4 is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame 8 of access conditions by the selector of device selector 5, and identification information generation mould is read
The mouse identification information of block generation, by the light list pathway 6 being connected with the main frame 8, the mouse identification information is transmitted
To the main frame 8, the main frame 8 stores the mouse identification information received using simulating storage module 7；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The main frame 8 for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
Change mouse identification information, by the light list pathway 6 being connected with the main frame 8, the change mouse identification information is passed
Defeated to arrive the main frame 8, the main frame 8 stores the mouse identification information received using simulating storage module 7；
Data processing unit is used for after simulating storage module 7 receives the mouse identification information, and data processing unit makes master
Machine 8 sets up data interaction with main mouse 3.
The present invention also provides a kind of unidirectional method for obtaining equipment identification information, as shown in figure 3, method includes：
S1：Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent out to identification information generation module
Go out control instruction；
S2：Identification information generation module generates the identification information for meeting access conditions according to the control instruction of main control module；
S3：Main control module closes the equipment to be accessed of access conditions by device selector selector, and reads identification information generation
The identification information of module generation, by the light list pathway being connected with the equipment to be accessed, the identification information is transferred to
The equipment to be accessed；
S4：The equipment to be accessed stores the identification information received using simulating storage module；
S5：Simulating storage module is received after the identification information, and the equipment to be accessed sets up data interaction with protection device；
S6：When the access conditions change of the outside input of reception, according to the access conditions of change, by device selector again
Selection meets the equipment to be accessed of change access conditions, while controlling the generation of identification information generation module to meet change access conditions
Change identification information, by the light list pathway being connected with the equipment to be accessed, the change identification information is transferred to
The equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
S7：Simulating storage module is received after the identification information, and the equipment to be accessed sets up data interaction with protection device.
The unidirectional method for obtaining equipment identification information is specifically included：
Protection device is display device, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the EDID information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
EDID information, by the light list pathway being connected with the main frame, by the EDID information transfers to the main frame；
The main frame stores the EDID information received using simulating storage module；
Simulating storage module is received after the EDID information, and the main frame sets up data interaction with display device；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change for changing access conditions
EDID information, by the light list pathway being connected with the main frame, by the change EDID information transfers to the main frame, the main frame
The EDID information received is stored using simulating storage module；
Simulating storage module is received after the EDID information, and the main frame sets up data interaction with display device.
Main control module receives the access conditions of outside input, according to the access conditions of reception, to identification information generation module
Send control instruction；Identification information generation module generates the EDID letters for meeting access conditions according to the control instruction of main control module
Breath；The EDID data of display device are read by I2C.Main control module chooses the device selector that is transferred to of EDID data unidirectionally
Simulating storage module.Simulating storage module is received after EDID data, it is believed that display device has been accessed.I2C is drawn high to lead to
The SDA and SCL in road, notify host display device to access, while display device resets, are such as grounded red baseline in VGA
50ms.Main frame can take EDID data by I2C passages.Display content is sent with the best configuration specified in EDID.When setting
After alternative device is reselected, while device selector is notified that control chip has reselected main frame, it is necessary to weight
New configuration EDID.Then the step of re-starting the above, EDID is sent to the main frame chosen.
The unidirectional method for obtaining equipment identification information also includes：
The protection device is Master Keyboard, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the keyboard identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
Keyboard identification information, by the light list pathway being connected with the main frame, by the keyboard identification information transfer to the main frame；
The main frame stores the keyboard identification information received using simulating storage module；
Simulating storage module is received after the keyboard identification information, and the main frame sets up data interaction with Master Keyboard；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change key for changing access conditions
Disk identification information, by the light list pathway being connected with the main frame, the main frame is transferred to by the change keyboard identification information,
The main frame stores the keyboard identification information received using simulating storage module；
Simulating storage module is received after the keyboard identification information, and the main frame sets up data interaction with Master Keyboard.
The unidirectional method for obtaining equipment identification information also includes：
The protection device is main mouse, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the mouse identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
Mouse identification information, by the light list pathway being connected with the main frame, the main frame is transferred to by the mouse identification information；
The main frame stores the mouse identification information received using simulating storage module；
Simulating storage module is received after the mouse identification information, and the main frame sets up data interaction with main mouse；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change mouse for changing access conditions
Identification information is marked, by the light list pathway being connected with the main frame, the change mouse identification information is transferred to the main frame,
The main frame stores the mouse identification information received using simulating storage module；
Simulating storage module is received after the mouse identification information, and the main frame sets up data interaction with main mouse.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Identical similar portion is referred to mutually between the difference of embodiment, each embodiment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of unidirectional system for obtaining equipment identification information, it is characterised in that including：Protection device, recognizes channel unit, many
Individual equipment to be accessed；
Protection device is connected with each equipment to be accessed respectively by recognizing channel unit；
Identification channel unit includes：Main control module, device selector and the light list conducting being adapted with number of devices to be accessed
Road；
Main control module is connected with device selector and protection device respectively, and device selector is set by light list pathway with to be accessed
Standby connection；
Protection device is provided with identification information generation module；Equipment to be accessed is provided with simulating storage module and data processing unit；
Identification information generation module is used for the control instruction according to main control module, and generation meets the identification information of access conditions；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the equipment to be accessed of access conditions by device selector selector, and identification information life is read
The identification information generated into module, by the light list pathway being connected with the equipment to be accessed, the identification information is transmitted
To the equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The equipment to be accessed for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access
The change identification information of condition, by the light list pathway being connected with the equipment to be accessed, the change identification information is passed
Defeated to arrive the equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the identification information, and data processing unit makes described waiting
Enter equipment and set up data interaction with protection device.
2. the unidirectional system for obtaining equipment identification information according to claim 1, it is characterised in that
The protection device is display device, and multiple equipment to be accessed are multiple main frames to be accessed；
Display device is connected with each main frame to be accessed respectively by recognizing channel unit；
The identification information generation module of display device is used for the control instruction according to main control module, and generation meets access conditions
EDID information；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame of access conditions by device selector selector, and identification information generation module is read
The EDID information of generation, by the light list pathway being connected with the main frame, by the EDID information transfers to the main frame, the master
Machine stores the EDID information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The main frame for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
EDID information is changed,, should by the change EDID information transfers to the main frame by the light list pathway being connected with the main frame
Main frame stores the EDID information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the EDID information, and data processing unit makes main frame with showing
Show that equipment sets up data interaction.
3. the unidirectional system for obtaining equipment identification information according to claim 2, it is characterised in that
Also include：Video data channel unit；
Video data channel unit is provided with video list pathway, HDMI-VGA modules, VGA-HDMI modules；Main frame is additionally provided with video card
The USB interface that module is connected with video card module；Display device is additionally provided with video processing module；
USB interface is connected with VGA-HDMI modules, and VGA-HDMI modules are connected by video list pathway with HDMI-VGA modules,
HDMI-VGA modules are connected with video processing module；
Video card module is used to carry out data signal and analog signal conversion process to vision signal, and passes sequentially through VGA-HDMI moulds
Block, video list pathway, HDMI-VGA module transfers to video processing module；Video processing module enters the vision signal of reception
Row is handled and shown.
4. the unidirectional system for obtaining equipment identification information according to claim 1, it is characterised in that
The protection device is Master Keyboard, and multiple equipment to be accessed are multiple main frames to be accessed；
Master Keyboard is connected with each main frame to be accessed respectively by recognizing channel unit；
The identification information generation module of Master Keyboard is used for the control instruction according to main control module, and generation meets the keyboard of access conditions
Identification information；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame of access conditions by device selector selector, and identification information generation module is read
The keyboard identification information of generation, by the light list pathway being connected with the main frame, by the keyboard identification information transfer to should
Main frame, the main frame stores the keyboard identification information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The main frame for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
Keyboard identification information is changed, by the light list pathway being connected with the main frame, the change keyboard identification information is transferred to
The main frame, the main frame stores the keyboard identification information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the keyboard identification information, and data processing unit makes main frame
Data interaction is set up with Master Keyboard.
5. the unidirectional system for obtaining equipment identification information according to claim 1, it is characterised in that
The protection device is main mouse, and multiple equipment to be accessed are multiple main frames to be accessed；
Main mouse is connected with each main frame to be accessed respectively by recognizing channel unit；
The identification information generation module of main mouse is used for the control instruction according to main control module, and generation meets the mouse of access conditions
Identification information；
Main control module is used for the access conditions for receiving outside input, according to the access conditions of reception, to identification information generation module
Control instruction is sent, while closing the main frame of access conditions by device selector selector, and identification information generation module is read
The mouse identification information of generation, by the light list pathway being connected with the main frame, this is transferred to by the mouse identification information
Main frame, the main frame stores the mouse identification information received using simulating storage module；
It is additionally operable to, when the access conditions change of the outside input of reception, according to the access conditions of change, pass through device selector
The main frame for meeting change access conditions is reselected, while controlling the generation of identification information generation module to meet change access conditions
Mouse identification information is changed, by the light list pathway being connected with the main frame, the change mouse identification information is transferred to
The main frame, the main frame stores the mouse identification information received using simulating storage module；
Data processing unit is used for after simulating storage module receives the mouse identification information, and data processing unit makes main frame
Data interaction is set up with main mouse.
6. the unidirectional system for obtaining equipment identification information according to claim 1, it is characterised in that
Identification channel unit also includes：For making identification channel unit connect the power supply adaptor of external power.
7. a kind of unidirectional method for obtaining equipment identification information, it is characterised in that method includes：
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the equipment to be accessed of access conditions by device selector selector, and reads identification information generation module
The identification information of generation, by the light list pathway being connected with the equipment to be accessed, is transferred to this by the identification information and treats
Access device；
The equipment to be accessed stores the identification information received using simulating storage module；
Simulating storage module is received after the identification information, and the equipment to be accessed sets up data interaction with protection device；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The equipment to be accessed for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet change access conditions
Identification information is changed, by the light list pathway being connected with the equipment to be accessed, the change identification information is transferred to this
Equipment to be accessed, the equipment to be accessed stores the identification information received using simulating storage module；
Simulating storage module is received after the identification information, and the equipment to be accessed sets up data interaction with protection device.
8. the unidirectional method for obtaining equipment identification information according to claim 7, it is characterised in that
Protection device is display device, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the EDID information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
EDID information, by the light list pathway being connected with the main frame, by the EDID information transfers to the main frame；
The main frame stores the EDID information received using simulating storage module；
Simulating storage module is received after the EDID information, and the main frame sets up data interaction with display device；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change for changing access conditions
EDID information, by the light list pathway being connected with the main frame, by the change EDID information transfers to the main frame, the main frame
The EDID information received is stored using simulating storage module；
Simulating storage module is received after the EDID information, and the main frame sets up data interaction with display device.
9. the unidirectional method for obtaining equipment identification information according to claim 7, it is characterised in that
The protection device is Master Keyboard, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the keyboard identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
Keyboard identification information, by the light list pathway being connected with the main frame, by the keyboard identification information transfer to the main frame；
The main frame stores the keyboard identification information received using simulating storage module；
Simulating storage module is received after the keyboard identification information, and the main frame sets up data interaction with Master Keyboard；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change key for changing access conditions
Disk identification information, by the light list pathway being connected with the main frame, the main frame is transferred to by the change keyboard identification information,
The main frame stores the keyboard identification information received using simulating storage module；
Simulating storage module is received after the keyboard identification information, and the main frame sets up data interaction with Master Keyboard.
10. the unidirectional method for obtaining equipment identification information according to claim 7, it is characterised in that
The protection device is main mouse, and multiple equipment to be accessed are multiple main frames to be accessed；
Main control module receives the access conditions of outside input, according to the access conditions of reception, is sent to identification information generation module
Control instruction；
Identification information generation module generates the mouse identification information for meeting access conditions according to the control instruction of main control module；
Main control module closes the main frame of access conditions by device selector selector, and reads the generation of identification information generation module
Mouse identification information, by the light list pathway being connected with the main frame, the main frame is transferred to by the mouse identification information；
The main frame stores the mouse identification information received using simulating storage module；
Simulating storage module is received after the mouse identification information, and the main frame sets up data interaction with main mouse；
When the access conditions change of the outside input of reception, according to the access conditions of change, selected again by device selector
The main frame for meeting change access conditions is selected, while controlling the generation of identification information generation module to meet the change mouse for changing access conditions
Identification information is marked, by the light list pathway being connected with the main frame, the change mouse identification information is transferred to the main frame,
The main frame stores the mouse identification information received using simulating storage module；
Simulating storage module is received after the mouse identification information, and the main frame sets up data interaction with main mouse.
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| CN201710237236.0A CN107015939A (en) | 2017-04-12 | 2017-04-12 | A kind of unidirectional system and method for obtaining equipment identification information |
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