CN107390556A - A kind of indication control board high definition shows shared switching device and control method - Google Patents
A kind of indication control board high definition shows shared switching device and control method Download PDFInfo
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- CN107390556A CN107390556A CN201710706704.4A CN201710706704A CN107390556A CN 107390556 A CN107390556 A CN 107390556A CN 201710706704 A CN201710706704 A CN 201710706704A CN 107390556 A CN107390556 A CN 107390556A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
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Abstract
Show that shared switching device and control method, the device include switch and controller the invention discloses a kind of indication control board high definition, be respectively arranged in indication control board frame with the oblique island of indication control board；The power transfer module external AC of switch, power supply is provided for whole device；Main control unit is responsible for communicating with switch, realizes the switching selection control to DVI modules and the EDID renewals to EDID modules；DVI modules are connected with indication control board display and work station；Main control unit carries out level conversion by data information memory to storage chip, by interface module, and is connected with the control interface of controller；The signal that control interface receives is handled after electrical level transferring chip by control module processing unit, and control button and indicator lamp are controlling and indicate control model.The indication control board that the device possesses for double-display screen and double work station provides the ability of a variety of HD video display patterns, realizes that described switching shows mode of operation by controller.
Description
Technical field
The present invention relates to computer video administrative skill field, and shared switching is shown more particularly to a kind of indication control board high definition
Device and control method.
Background technology
Indication control board is that a kind of synthesis for supporting that the information such as figure, image, word and form show and possessed interactive operation shows
Equipment is controlled, generally there is indication control board structure rack (containing oblique island structure), display, work station (also known as information process unit or calculating
Machine), manipulation unit etc. unit composition.Wherein, manipulation unit is related to the multiple types such as video, power supply, speech, control
Type, different manipulation units can realize different types of manipulation function.
At present, commercially available commercial video switching equipment can only support pair of more work platform single screen switchings or more work stations
Screen switches simultaneously.Equipment is switched using commercially available commercial video, can not meet that a certain work station is double in double screen, double main frame indication control boards
The use demand that screen display or two work station single screens are shown.
The content of the invention
Goal of the invention：In view of the shortcomings of the prior art, it is proposed that a kind of to possess indication control board high definition computer video signal
Double screen, the indication control board high definition of single screen display pattern handoff functionality show shared switching device and control method.
Technical scheme：A kind of indication control board high definition shows shared switching device and control method, it is characterised in that：The device bag
Switch and controller are included, the switch is installed in indication control board frame, and controller is installed on the oblique island of indication control board；
Switch includes handover module, and the handover module includes main control unit, power transfer module, DVI modules, EDID moulds
Block, storage chip and interface module；Wherein, the external 220V alternating currents of power transfer module, power supply is provided for whole device；Master control
Unit is responsible for communicating with controller, realizes the switching selection control to DVI modules and the EDID renewals to EDID modules；Master control list
Member carries out level conversion by data information memory to storage chip, by interface module, and is connected with controller；DVI modules with
Indication control board display connects with work station；
Controller includes control module, and the control module includes control button and indicator lamp, control module processing unit, electricity
Flat conversion chip and control interface；Control interface is connected with the interface module of the switch, the signal that control interface receives
Handled after electrical level transferring chip by control module processing unit, control button and indicator lamp control to control and indicate
Pattern.
Wherein, the main control unit includes primary processor, from processor and bus control unit；The power transfer module bag
AC power input interface and AC-DC units are included, the external 220V alternating currents of its AC power input interface, and 220V alternating currents
AC-DC units are inputed to, 220V alternating currents are converted into the required direct current of each unit work by AC-DC units；The DVI moulds
Block includes DVI control interfaces, DVI matrix units, DVI input blocks, DVI input interfaces, DVI output units and DVI outputs and connect
Mouthful, the DVI input interfaces have four, and DVI output interfaces have two；The EDID modules include EDID control interfaces, EDID
Administrative unit and EDID storage chips；The interface module includes electrical level transferring chip, communication interface and control module interface；Its
In, DVI matrix units realize to switch the passage of DVI input blocks and DVI output units and selected that EDID administrative units are responsible for reading
Take the EDID for the display that DVI output interfaces are connected and be updated to EDID storage chips, the work connected for DVI input interfaces
Make station video card interface to read；Primary processor is responsible for communicating with handover module, and bus control unit passes through the realization pair of DVI control interfaces
The switching selection control of DVI matrix units, the EDID of EDID administrative units is updated from processor by EDID control interfaces.Adopt
Refresh skill automatically with the EDID information by being realized from processor, EDID control interfaces, EDID administrative units and EDID storage chips
Art, by the interconnection of EDID storage chips and DVI input interfaces, support the access of work station high definition resolution output signal；It is logical
The interconnection of EDID storage chips and DVI output interfaces is crossed, supports the access of high definition resolution device (such as display).
Wherein, the power transfer module by the 220V alternating currents of input be converted to each unit work needed for+3.3V and+
5V direct current.The electrical level transferring chip is TTL-RS232 electrical level transferring chips, and the communication interface is RS232 interface.Institute
State control button and indicator lamp be 3 circular Self-resetting buttons with annular LED, the device have work station shuangping san,
Single screen is shown and three kinds of self-defined display patterns of single screen double screen mixed display, wherein, " display 1 " shows for the double screen of work station 1
Show, " display 2 " is the shuangping san of work station 2, and " dividing aobvious " shows for the single screen of work station 1 and work station 2.
A kind of indication control board high definition shows shared switching device, and the device includes switch and controller, the switch bag
Casing, front panel, rear board and handover module are included, wherein, casing is rectangle, both ends open, front panel and rear board difference
It is arranged at the open front of casing and at after-opening, handover module is installed in casing；The rear board is provided with AC power
Input interface, DVI input interfaces, communication interface, control module interface and DVI output interfaces；Wherein, AC power input interface
The outside 220V AC powers of connection, DVI input interfaces connect the DVI signals of work station in indication control board, and the connection of DVI output interfaces is aobvious
Control display on platform, the connection of control module Interface and Controler；The front panel is provided with handle, screw hole, power switch and pressed
Button and power supply indicator；Wherein, power switch button upper end is pressed to turn on the power, and power supply indicator is bright；Press to close lower end
Power supply is closed, power supply indicator goes out；The controller includes casing, front panel, rear board and handover module, wherein, casing is length
Square, both ends open, front panel and rear board are respectively arranged at the open front of casing and at after-opening, and control module is installed on
In casing；Control interface and earthing rod are configured with the rear board, wherein, the control module of control interface and handover module connects
Mouth is connected, and earthing rod is used to be grounded；Control module interface is provided with power pins, and required direct current is provided from it to control module
Source；Control button and indicator lamp and screw hole are configured with the front panel.
Wherein, the handover module include primary processor, from processor, bus control unit, AC power input interface,
AC-DC units, DVI control interfaces, DVI matrix units, DVI input blocks, DVI input interfaces, DVI output units and DVI are defeated
Outgoing interface, EDID control interfaces, EDID administrative units, EDID storage chips, electrical level transferring chip, communication interface and control module
Interface；Wherein, the external 220V alternating currents of AC power input interface, and 220V alternating currents are inputed to AC-DC units, by AC-
DC units are converted to 220V alternating currents in the direct current needed for each unit work；DVI matrix units realize to DVI input blocks and
The passage switching selection of DVI output units, EDID administrative units are responsible for reading the EDID for the display that DVI output interfaces are connected
And EDID storage chips are updated to, read for the work station video card interface that DVI input interfaces are connected；Primary processor is responsible for cutting
Block communication is changed the mold, bus control unit realizes that the switching to DVI matrix units selects control by DVI control interfaces, from processor
The EDID of EDID administrative units is updated by EDID control interfaces.
Wherein, the control module include control button and indicator lamp, control module processing unit, electrical level transferring chip and
Control interface, control interface are connected with the handover module, and the signal that control interface receives is after electrical level transferring chip by controlling
Modular processing unit processed is handled, and control button and indicator lamp are controlling and indicate control model.
Wherein, the switch uses 19 inch rack formula structures, height 1U, can be conveniently installed inside indication control board；
Controller uses 19 inches of flush type mounting structures of half, height 1U, it is convenient to it is embedded installed in indication control board surface or
On table top.
Wherein, the device has that work station shuangping san, single screen are shown and three kinds of single screen double screen mixed display self-defined
Display pattern；Meet use demand of the user to different display modes under double screen, double main frame indication control board plurality of application scenes.
A kind of control method that shared switching device is shown based on above-mentioned indication control board high definition, is comprised the following steps：
(1) serial ports, variable and window are initialized；
(2) judge whether to timing query time, if timing query time arrives, perform step (3), otherwise, perform step
Suddenly (5)；
(3) querying command is performed, inquires about the state of switch and controller；
(4) judge whether inquiring about/switching, if so, continuing step (4) after waiting to be checked/finishing switching, if it is not, then
Perform step (5)；
(5) whether software detection has button operation, wherein, button is " serial port setting ", " exiting ", " pattern 1 ", " pattern
2 ", " pattern 3 ", " pattern configurations " or " mode reset ", if without button operation, return to step (2)；Otherwise, step is performed
(6)；
(6) determine whether function key, wherein, function key be " serial port setting ", " pattern 1 ", " pattern 2 ", " pattern 3 ",
" pattern configurations " or " mode reset ", if " function key " acts, then corresponding feature operation is performed, is then back to step (2)；
If not " function key " acts, then step (7) is performed；
(7) end key is determined whether, if so, then end operation, exits software, if it is not, then return to step (2) continues to grasp
Make.
Beneficial effect：Compared with prior art, advantages of the present invention is：(1) present apparatus has control computer video card defeated
Go out function.By set handover module can control with handover module input certain all the way or a few roads video card whether export it is aobvious
Show signal.The function can effectively prevent that main screen and secondary screen display are reverse in the switching of computer double screen pattern to single screen mode
Or display picture it is infull the problem of, without changing the physical connection of computer display card and handover module.(2) present apparatus has aobvious
Show the automatic refresh function of device EDID information.The EDID information of handover module automatic refresh display after power to input interface,
Computer is set to export vision signal by the optimum display mode of display, without manual intervention.(3) present apparatus has customized
Switch mode.Handover module can pre-set three kinds of customized switch modes, and these three patterns can be computer double screen
The combination of display pattern, single screen display pattern and single screen double screen mixed display；So that the display screen of indication control board is within the same time
The information of similar and different work station can be shown.(4) present apparatus can be controlled by being installed on the control module on the oblique island of indication control board
The display pattern of indication control board, it is convenient for the user to operate.Control module is simple to operate without external power supply.The present invention is especially suitable
The manipulation closed in the command centres such as traffic, public security, army, the double main frame indication control boards of Surveillance center's double screen is assembled and used with, and has moulding
Attractive in appearance, function is succinct, simple operation, install and use it is simple, equipped flexibly and the advantages that versatility is high.
Brief description of the drawings
Fig. 1 is the structured flowchart of the present invention；
Fig. 2 is switch rear board schematic diagram；
Fig. 3 is switch front panel schematic diagram；
Fig. 4 is switch structural representation Fig. 1；
Fig. 5 is switch structural representation Fig. 2；
Fig. 6 is controller rear board schematic diagram；
Fig. 7 is controller front panel schematic diagram；
Fig. 8 is controller architecture schematic diagram 1；
Fig. 9 is controller architecture schematic diagram 2；
Figure 10 is control software interface；
Figure 11 is configuration mode software interface；
Figure 12 is the control software flow chart of apparatus of the present invention.
Embodiment
Technical solution of the present invention is described in further detail below in conjunction with the accompanying drawings.
Indication control board high definition shows that shared switching device includes switch and controller, and switch is installed on indication control board bottom 19
In inch rack, controller is installed on the oblique island of indication control board.As shown in figure 1, switch includes handover module 10, the handover module
Including main control unit, power transfer module, DVI modules, EDID modules, storage chip and interface module.Wherein, main control unit bag
Include primary processor 10-1, from processor 10-2 and bus control unit 10-3；Power transfer module includes AC power input interface
10-4 and AC-DC units 10-5；DVI modules include DVI control interface 10-6, DVI matrix unit 10-7, DVI input blocks 10-
8th, DVI input interfaces 10-9, DVI output units 10-10 and DVI output interface 10-11, wherein DVI input interfaces have four,
DVI output interfaces have two；EDID modules include EDID control interface 10-12, EDID administrative units 10-13 and EDID storage core
Piece 10-14；Interface module includes TTL-RS232 electrical level transferring chips 10-15, RS232 interface 10-16 and control module interface
10-17；Storage chip 10-18.Controller includes control module 20, the control module include control button and indicator lamp 20-1,
Control module processing unit 20-2, TTL-RS232 electrical level transferring chip 20-3 and control interface 20-4.
Wherein, power transfer module provides power supply for whole device, the external 220V alternating currents of its AC power input interface,
And 220V alternating currents are inputed to AC-DC units, by AC-DC units by 220V alternating currents be converted to each unit work needed for+
3.3V and+5V direct currents.Primary processor in main control unit is responsible for communicating with handover module, and bus control unit is controlled by DVI
Interface realizes the switching selection control to DVI matrix units, from processor by EDID control interfaces to EDID administrative units
EDID updates.Primary processor stores the facility information before switching state, configuration information and power down to storage chip, is easy to open again
Recover state during machine；On the other hand, primary processor is communicated by TTL-RS232 electrical level transferring chips with host computer or controller,
Signal is exported by RS232 interface and control module interface.DVI matrix units are realized to DVI input blocks and DVI output units
Passage switching selection.EDID administrative units are responsible for reading the EDID for the display that DVI output interfaces are connected and are updated to
EDID storage chips, read for the work station video card interface that DVI input interfaces are connected.
Handover module is used by realizing from processor, EDID control interfaces, EDID administrative units and EDID storage chips
The automatic refresh technique of EDID information, by the interconnection of EDID storage chips and DVI input interfaces, support work station high definition resolution ratio
The access of output signal；By the interconnection of EDID storage chips and DVI output interfaces, support high definition resolution device (as shown
Device) access.
Control module processing unit in control module is realized to control button and the scanner uni status indicator lamp of indicator lamp
Light, and pass through TTL-RS232 electrical level transferring chips and control interface and realize communication with the primary processor of handover module.
As shown in Figures 2 to 5, switch is the host machine part of the device, using 19 inch rack formula structures, height 1U,
It is easily installed in indication control board.It includes handover module 10, casing 11, front panel 12 and rear board 13.Wherein, casing is rectangular
Shape, both ends open, front panel and rear board are respectively arranged at the open front of body and at after-opening, before before board size arm casing
Opening is big, and handover module is installed in casing.
One end of rear board is provided with AC power input interface, and four are sequentially provided with from AC power input interface to the other end
Individual DVI input interfaces, are designated as respectively：" 1 " 10-9-1 of input, " 2 " 10-9-2 of input, " 3 " 10-9-3 of input and " 4 " 10- of input
RS232 interface and control module interface are provided with below 9-4, DVI input interface, two DVI output interfaces are provided with close to the other end,
It is designated as respectively：" 1 " 10-11-1 of output and " 2 " 10-11-2 of output.Wherein, the outside 220V exchanges of AC power input interface connection
Power supply, DVI input interfaces connect the DVI signals of work station 1 or work station 2 in indication control board, and DVI output interfaces are connected on indication control board
Display 1 or display 2, the control module connection of control module Interface and Controler.
There are two handle 12-1 on front panel, be symmetricly set in the both ends of front panel, be located at handle at the both ends of front panel
Outside be respectively provided with two screw hole 12-2, for switch to be fixed on into indication control board.Power switch button 12-3 is close to it
The handle of middle one end, power supply indicator 12-4 are arranged at the one side of power switch button away from handle；Wherein, power switch button
Upper end is pressed to turn on the power, and power supply indicator is bright；Lower end is pressed to close power supply, and power supply indicator goes out.
As shown in Figures 6 to 9, controller uses height 1U, the flush type mounting structure of 19 inches of width half, just
In on the oblique island installed in indication control board.It includes control module 20, casing 21, front panel 22 and rear board 23.Wherein, casing is
Rectangle, both ends open, front panel and rear board are respectively arranged at the open front of casing and at after-opening, before board size arm
Casing open front is big, and control module is installed in casing.
Control interface and earthing rod 23-1 are configured with rear board, wherein, the control module of control interface and handover module
Interface is connected, and earthing rod is used to be grounded.Control module interface is provided with power pins, and required direct current is provided from it to control module
Power supply.
Control button and indicator lamp 20-1 and screw hole 20-5 are configured with front panel, wherein, screw hole has two, respectively
Located at the both ends of front panel；Control button and indicator lamp have three, between two screw holes, are designated as respectively：" display 1 "
20-1-1, " 2 " 20-1-2 of display and " dividing aobvious " 20-1-3.Wherein, control button and indicator lamp are 3 circles with annular LED
Shape Self-resetting button, for controlling the switch mode of handover module.Some button in control button and indicator lamp is pressed, is unclamped
Button is upspring automatically afterwards, and the annular indicator lamp of the button lights, to indicate the pattern of selection.User is manipulated by device face
Button on front panel, the dual display or two work stations point of any one work station in double screen, double main frame indication control boards can be achieved
Single screen is not shown independently on two display screens of indication control board, meets user to double screen, double main frame indication control board plurality of application scenes
The use demand of lower different display modes.When press in control button and indicator lamp " display 1 " button when, handover module
DVI signal outputs are the shuangping san of work station 1；When press control model button " display 2 " button when, the DVI of handover module
Signal output is the shuangping san of work station 2；When pressing control model button " point aobvious " button, the DVI signals of handover module
Output is respectively that the single screen of work station 1 and 2 is shown.
When specifically used, " inputting 1 " and " input 2 " connect the double screen video cards of work station 1 in the DVI input interfaces of switch
Export, " inputting 3 " and " input 4 " connects the double screen video cards output of work station 2 in DVI input interfaces.The DVI outputs of switch connect
" 1 " the DVI inputs for connecing display 1 are exported, " output 2 " connects the DVI inputs of display 2 in mouthful.The control interface of switch with
The control interface connection of controller.When switch is connected simultaneously with work station 1, work station 2, display 1, display 2 and controller
And after each device power-on, press " 1 " the button of display the, from " input 1 " and " defeated in DVI input interfaces on controller front panel
The computer video signal for entering 2 " receptions is respectively sent to " export 1 " and " output 2 ", now, display 1 and display 2 are work
Make the shuangping san at station 1；Press " 2 " the buttons of display the, from " input 3 " and " defeated in DVI input interfaces on controller front panel
The computer video signal for entering 4 " receptions is respectively sent to " export 1 " and " output 2 ", now, display 1 and display 2 are work
Make the shuangping san at station 2；" point aobvious " button on controller front panel is pressed, from " the input 1 " and " defeated in DVI input interfaces
The computer video signal for entering 3 " receptions is respectively sent to " export 1 " and " output 2 ", now, display 1 are the list of work station 1
Screen display, display 2 show for the single screen of work station 2.Therefore, the operational control of controlled device, the device possess external separate unit
Work station shuangping san difference information and shuangping san identical information, and single screen such as shows at a variety of applications to two work stations on demand
Switching between pattern shows that the final dispaly state of indication control board can be by straight after control software control or configuration display mode
Operation is connect to realize.
The device of the present invention is not limited by be equipped with display device in theory when in use, but in view of the whole of indication control board
Body is planned and design feature, it is proposed that using the display device of same size, but display device (such as display) is as long as meet display
The standard size requirement of device.
The RS232 interface of switch is connected and installed with to the host computer of control software, opens the control software on host computer,
There is control software interface as shown in Figure 10.The control software interface is provided with pattern configurations button, mode reset button and 3
Mode switch button, click on button and perform corresponding function operation.
Pattern configurations button is clicked on, recalls interface as shown in figure 11, under the interface, user can configure 3 patterns
Handoff relation, sets the display output pattern of the input connection status under each pattern, i.e. work station, connection show work station this
Road output signal, disconnection show this road of work station not output signal.
Mode reset button is clicked on, the handoff relation of 3 patterns and work station display pattern are reverted to factory default and set
Put.
Point blow mode 1, pattern 2 and the switching push button of pattern 3, perform associative mode switching, 3 mode switch buttons herein
Function it is same with the control button of control module front panel and the function phase of indicator lamp, cut provided with pattern below mode switch button
Change status indicator lamp.I.e. the mode switch function can be set by the control button on controller front panel and indicator lamp come hardware
Put, also software design patterns can be carried out by control software.
As shown in figure 12, it is the flow chart of control software, its control method is：
(1) serial ports, variable and window are initialized, wherein, variable includes timing query time；
(2) it is soft in order that the output state of control software and pattern switching are shown and switch, the state synchronized of controller
Contain timer in part, periodically inquire about the state of switch and controller.This step judges whether to timing query time, if fixed
When query time arrive, then perform step (3), otherwise, perform step (5)；
(3) querying command is performed, inquires about the state of switch and controller；
(4) judge whether inquiring about/switching, if so, continuing step (4) after waiting to be checked/finishing switching, if it is not, then
Perform step (5)；
(5) whether software detection has button operation, wherein, button is " serial port setting ", " exiting ", " pattern 1 ", " pattern
2 ", " pattern 3 ", " pattern configurations " or " mode reset ", if without button operation, return to step (2)；Otherwise, step is performed
(6)；
(6) determine whether function key, wherein, function key be " serial port setting ", " pattern 1 ", " pattern 2 ", " pattern 3 ",
" pattern configurations " or " mode reset ", if " function key " acts, then corresponding feature operation is performed, such as serial port setting or pattern
Switching etc., is then back to step (2)；If not " function key " acts, then step (7) is performed；
(7) end key is determined whether, wherein, end key is " exiting ", if so, then end operation, exits software, if
No, then return to step (2) continues to operate.
Claims (10)
1. a kind of indication control board high definition shows shared switching device, it is characterised in that：The device includes switch and controller, described
Switch is installed in indication control board frame, and controller is installed on the oblique island of indication control board；
Switch includes handover module, the handover module include main control unit, power transfer module, DVI modules, EDID modules,
Storage chip and interface module；Wherein, the external 220V alternating currents of power transfer module, power supply is provided for whole device；Master control list
Member is responsible for communicating with controller, realizes that the switching selection to DVI modules controls and the EDID of EDID modules is updated；Main control unit
By data information memory to storage chip, level conversion is carried out by interface module, and be connected with controller；DVI modules are with showing
Control platform display connects with work station；
Controller includes control module, and the control module includes control button and indicator lamp, control module processing unit, level turn
Change chip and control interface；Control interface is connected with the interface module of the switch, and the signal that control interface receives is through electricity
Handled after flat conversion chip by control module processing unit, control button and indicator lamp are controlling and indicate to control mould
Formula.
2. a kind of indication control board high definition according to claim 1 shows shared switching device, it is characterised in that：
The main control unit includes primary processor, from processor and bus control unit；
The power transfer module includes AC power input interface and AC-DC units, and its AC power input interface is external
220V alternating currents, and 220V alternating currents are inputed to AC-DC units, 220V alternating currents are converted into each unit by AC-DC units
Direct current needed for work；
The DVI modules include DVI control interfaces, DVI matrix units, DVI input blocks, DVI input interfaces, DVI output lists
Member and DVI output interfaces, the DVI input interfaces have four, and DVI output interfaces have two；
The EDID modules include EDID control interfaces, EDID administrative units and EDID storage chips；The interface module includes
Electrical level transferring chip, communication interface and control module interface；
Wherein, DVI matrix units are realized to switch the passage of DVI input blocks and DVI output units and selected, EDID administrative units
It is responsible for reading the EDID for the display that DVI output interfaces are connected and is updated to EDID storage chips, connects for DVI input interfaces
The work station video card interface connect is read；Primary processor is responsible for communicating with handover module, and bus control unit is real by DVI control interfaces
The now switching selection control to DVI matrix units, from processor by EDID control interfaces to the EDID of EDID administrative units more
Newly.
3. a kind of indication control board high definition according to claim 1 shows shared switching device, it is characterised in that：The power supply turns
Mold changing block is converted to the 220V alternating currents of input in the direct current of the+3.3V and+5V needed for each unit work.
4. a kind of indication control board high definition according to claim 1 shows shared switching device, it is characterised in that：The level turns
It is TTL-RS232 electrical level transferring chips to change chip, and the communication interface is RS232 interface.
5. a kind of indication control board high definition according to claim 1 shows shared switching device, it is characterised in that：The control is pressed
Button and indicator lamp are 3 circular Self-resetting buttons with annular LED, and there is the device work station shuangping san, single screen to show
With three kinds of self-defined display patterns of single screen double screen mixed display, wherein, " display 1 " be work station 1 shuangping san, " display
2 " be the shuangping san of work station 2, and " dividing aobvious " shows for the single screen of work station 1 and work station 2.
6. a kind of indication control board high definition shows shared switching device, it is characterised in that：The device includes switch and controller,
The switch includes casing, front panel, rear board and handover module, wherein, casing is rectangle, and both ends open is preceding
Panel and rear board are respectively arranged at the open front of casing and at after-opening, and handover module is installed in casing；Behind described
Plate is provided with AC power input interface, DVI input interfaces, communication interface, control module interface and DVI output interfaces；Wherein,
The outside 220V AC powers of AC power input interface connection, DVI input interfaces connect the DVI signals of work station in indication control board,
Display on DVI output interfaces connection indication control board, the connection of control module Interface and Controler；The front panel be provided with handle,
Screw hole, power switch button and power supply indicator；Wherein, power switch button upper end is pressed to turn on the power, power supply instruction
Lamp is bright；Lower end is pressed to close power supply, and power supply indicator goes out；
The controller includes casing, front panel, rear board and handover module, wherein, casing is rectangle, and both ends open is preceding
Panel and rear board are respectively arranged at the open front of casing and at after-opening, and control module is installed in casing；Behind described
Control interface and earthing rod are configured with plate, wherein, control interface is connected with the control module interface of handover module, and earthing rod is used
In ground connection；Control module interface is provided with power pins, and required dc source is provided from it to control module；On the front panel
It is configured with control button and indicator lamp and screw hole.
7. a kind of indication control board high definition according to claim 6 shows shared switching device, it is characterised in that：The switching mould
Block includes primary processor, from processor, bus control unit, AC power input interface, AC-DC units, DVI control interfaces, DVI
Matrix unit, DVI input blocks, DVI input interfaces, DVI output units and DVI output interfaces, EDID control interfaces, EDID pipes
Manage unit, EDID storage chips, electrical level transferring chip, communication interface and control module interface；
Wherein, the external 220V alternating currents of AC power input interface, and 220V alternating currents are inputed to AC-DC units, by AC-DC
Unit is converted to 220V alternating currents in the direct current needed for each unit work；DVI matrix units realize to DVI input blocks and
The passage switching selection of DVI output units, EDID administrative units are responsible for reading the EDID for the display that DVI output interfaces are connected
And EDID storage chips are updated to, read for the work station video card interface that DVI input interfaces are connected；Primary processor is responsible for cutting
Block communication is changed the mold, bus control unit realizes that the switching to DVI matrix units selects control by DVI control interfaces, from processor
The EDID of EDID administrative units is updated by EDID control interfaces.
8. a kind of indication control board high definition according to claim 6 shows shared switching device, it is characterised in that：The control mould
Block includes control button and indicator lamp, control module processing unit, electrical level transferring chip and control interface, control interface with it is described
Handover module is connected, and the signal that control interface receives is handled after electrical level transferring chip by control module processing unit,
Control button and indicator lamp are controlling and indicate control model.
9. a kind of indication control board high definition according to claim 6 shows shared switching device, it is characterised in that：The switch
Using 19 inch rack formula structures, height 1U；Controller uses 19 inches of flush type mounting structures of half, height 1U.
10. the control method based on any one of claim 1 to 9 described device, it is characterised in that comprise the following steps：
(1) serial ports, variable and window are initialized；
(2) judge whether to timing query time, if timing query time arrives, perform step (3), otherwise, perform step
(5)；
(3) querying command is performed, inquires about the state of switch and controller；
(4) judge whether inquiring about/switching, if so, continuing step (4) after waiting to be checked/finishing switching, if it is not, then performing
Step (5)；
(5) whether software detection has button operation, and wherein button is " serial port setting ", " exiting ", " pattern 1 ", " pattern 2 ", " mould
Formula 3 ", " pattern configurations " or " mode reset ", if without button operation, return to step (2)；Otherwise, step (6) is performed；
(6) function key is determined whether, wherein, function key is " serial port setting ", " pattern 1 ", " pattern 2 ", " pattern 3 ", " pattern
Configuration " or " mode reset ", if " function key " acts, then corresponding feature operation is performed, is then back to step (2)；If no
It is " function key " action, then performs step (7)；
(7) end key is determined whether, if so, then end operation, exits software, if it is not, then return to step (2) continues to operate.
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| CN201710706704.4A CN107390556A (en) | 2017-08-17 | 2017-08-17 | A kind of indication control board high definition shows shared switching device and control method |
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| CN107390556A true CN107390556A (en) | 2017-11-24 |
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Application publication date: 20171124 |