CN104464682B - A kind of multi-display addressing control device and control method - Google Patents
A kind of multi-display addressing control device and control method Download PDFInfo
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- CN104464682B CN104464682B CN201410695666.3A CN201410695666A CN104464682B CN 104464682 B CN104464682 B CN 104464682B CN 201410695666 A CN201410695666 A CN 201410695666A CN 104464682 B CN104464682 B CN 104464682B
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Abstract
The invention discloses a kind of multi-display addressing control device and control method, wherein control device includes controller, the RF modules being connected with controller, infrared receiving module, functional switch, address switch, key mouse module, I/O interface, RS485 interfaces and indicator lamp.A kind of multi-display addressing control device of the present invention, facilitates the operation and regulation of multi-display.And a kind of multi-display addressing control method adds secondary broadcast and adjust sequential by handshaking line after single-chip microcomputer is once broadcasted, excessive number of broadcast times is prevented.Multi-display system antijamming capability is improved by broadcasting twice, it is ensured that display is selected.
Description
Technical field
The present invention relates to a kind of multi-display addressing control device and control method, belong to field of display.
Background technology
With the development of society, LCDs is widely applied in various occasions, while occur in that in a place,
The application scenarios of multiple LCDs are set, LCDs is generally arranged to M*N liquid crystal wall, M and N >=1, or with
The many LCDs that landing form is placed.At this time the parameter to LCDs is adjusted, and is usually only to connect one
The remote control head of platform liquid crystal display device, it is good etc. parameter setting after, then change to another.Especially for liquid crystal-spliced screen, it is impossible to
Remote control signal receiver window is set before every LCDs, typically one people remote control or button later, another
People carries out parameter adjustment (such as brightness, contrast) in the menu for above observing liquid crystal-spliced screen, come mutually by way of voice
Current state is mutually transmitted, operation inconvenience.Some displays can be selected by nonshared control unit or computer at present, and
Its parameter is adjusted, for computer installation at screen rear or computer room, adjustment is got up also very inconvenient.
When needing to do different lecturees to the liquid crystal demonstration screen of multiple different built-in computers, certain liquid crystal is such as played
The PPT of display screen, or designated pictures or screen, at this moment traditional remote control are helpless, and phenomenon is that one by remote control, many set
It is standby to respond together.Specified LCDs can not be operated before multiple LCDs, using very not
Convenient, while limiting the application of partial liquid crystal display screen, some functions can not be realized.
The content of the invention
Goal of the invention：The present invention proposes a kind of multi-display addressing control device and control method, is easy to multi-display
Selected control and adjusting parameter are carried out, while improving antijamming capability.
Technical scheme：The technical solution adopted by the present invention is a kind of multi-display addressing control device, including controller, with
Controller connection RF modules, infrared receiving module, functional switch, address switch, key mouse module, I/O interface, RS485 interfaces and
Indicator lamp.
Preferably, the controller is STC15F2K16S2 single-chip microcomputers.The RS485 interfaces use MAX485 chips, key
Mouse module uses UI011.
A kind of multi-display addressing control method, comprises the following steps：
It is low level handshaking line to set the initial voltage that is connected with all displays, the handshaking line also with single-chip microcomputer
Connection.Every display assigns an address n (n is positive integer), and setting unit time delay t；
Remote control sends address signal to all displays, and every display believes the address of itself and the address received
Number contrasted, identical, the selected handshaking line simultaneously of the display is drawn high to high level；
If selected display is not selected, all displays postpone the nt times to other respectively according to the address n of distribution
Display is broadcasted, and the wherein minimum display in address is broadcasted first, while the level of handshaking line is drawn high from low level
To high level, and other displays are then checked for then no longer broadcasting after being high level to handshaking line；
Display completes time delay Tmax again after broadcast address signal, and handshaking line is pulled to low level.
Preferably, the unit delay time t is 100us, Tmax>t*n.
Beneficial effect：A kind of multi-display addressing control device of the present invention, facilitates the operation and regulation of multi-display.And one
Multi-display addressing control method is planted after single-chip microcomputer is once broadcasted, secondary broadcast is added and sequential is adjusted by handshaking line,
Prevent excessive number of broadcast times.Multi-display system antijamming capability is improved by broadcasting twice, it is ensured that display is selected.
Brief description of the drawings
Fig. 1 is a kind of structural representation of multi-display addressing control device of the invention；
Fig. 2 is a kind of workflow diagram of multi-display addressing control method of the invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is furture elucidated, it should be understood that these embodiments are merely to illustrate
The present invention rather than limitation the scope of the present invention, after the present invention has been read, those skilled in the art are each to the present invention's
The modification for planting equivalents falls within the application appended claims limited range.
As shown in figure 1, a kind of multi-display addressing control device of the invention includes STC15F2K16S2 single-chip microcomputers, with monolithic
RF modules, infrared receiving module, functional switch, address switch, key mouse module, I/O interface, RS485 interfaces and the instruction of machine connection
Lamp.Wherein RS485 interfaces use MAX485 chips.Key mouse module uses UI011, receives the mouse-keyboard life that single-chip microcomputer is sent
Order, and the code of analog mouse and keyboard is transferred to computer by USB interface.
User sends a signal to described infrared receiving module or RF modules using the infrared or RF remote in hand,
Specifically used infrared receiving module or RF module is then selected by functional switch.IR remote controller high directivity, is adapted to big
Most occasions are used.RF RF remote operating distances are remote.
The control signal that remote control is sent includes address signal and actuating signal.Infrared receiving module or RF modules receive control
After signal processed, also produce corresponding signal and be sent to single-chip microcomputer.Single-chip microcomputer is sent out the address information in the control signal that is received
Address switch is sent to, address switch is decoded the display address specifically to be controlled to address information.The present invention is used
Be 8 bit address switch, at most can control 256 displays.As shown in Fig. 2 the RS485 interfaces are connected to each display
RS485 interfaces on.
The display address that address switch is decoded is sent to single-chip microcomputer, and single-chip microcomputer is chosen corresponding aobvious by RS485 interfaces
Show the display of device address.Single-chip microcomputer changes the color of indicator lamp simultaneously, or shows relevant information on the display chosen,
Remind user.
After single-chip microcomputer is handled the actuating signal in received signal, there is two ways to be sent to the display chosen
On.One kind is that single-chip microcomputer sends actuating signal to key mouse module, and corresponding mouse-keyboard operation signal is produced by key mouse module
And sent by USB interface to computer, then sent by computer to the display chosen；Another is that single-chip microcomputer will act letter
Number the Video processing plate of display chosen is sent directly to by I/O interface.
Above-mentioned multi-display addressing control device can also select some display all the time by way of hardware or software
Device, the everything signal so from remote control is all only for the selected display.The hardware mode can be wire jumper
Cap, toggle switch.The software mode can be that address is stored in into nonerasable memory in single-chip microcomputer, convenient to call at any time.
The problem of existing multi-display system is selected in addressing in the presence of leakage, that is, when controller is wide to all displays
Sowing time, may really need to choose that due to sequential, noise the problems such as fail to receive address signals.
Therefore the present invention proposes a kind of multi-display addressing control method, comprises the following steps：
One handshaking line being connected with all displays is set, and the handshaking line is also connected with single-chip microcomputer.Every display is equal
An address n (n is integer) is assigned, and setting unit time delay t, such as selectable delay time t are 100us.
When single-chip microcomputer receives the address signal from remote control, all displays, every display are transmitted at once
Device is contrasted the address of itself and the address signal that receives, and identical then display is selected, while single-chip microcomputer is drawn high
Handshaking line is to high level；
Failing to completing to shake hands, illustrate that the display that should be chosen fails to receive address signal.Now all is aobvious
Show address n of the device according to distribution, postponing the nt times respectively broadcasts other displays, the wherein minimum display head in address
First broadcasted, while single-chip microcomputer draws high the level of handshaking line to high level from low level.And other displays are due to delay
Time is longer, and they are then checked for just no longer broadcasting after being high level to handshaking line.
Display completes time delay Tmax again after broadcast address signal, and handshaking line is pulled to low level by single-chip microcomputer, waits
Remote signal next time.Wherein Tmax>T*n, such as optional 50ms.
Above-mentioned control method selects a display to be broadcasted as main frame, by holding in an orderly manner after failure of shaking hands
Hand line adjusts sequential, prevents excessive number of broadcast times, improves multi-display system antijamming capability, it is ensured that display is selected.
Claims (2)
1. a kind of multi-display addressing control method, it is characterised in that comprise the following steps：
It is low level handshaking line to set an initial voltage being connected with all displays, and the handshaking line also connects with single-chip microcomputer
Connect, every display assigns an address n, and the address that n-th display is assigned is n, wherein n=1, and 2 ... i, i is display
Device quantity, and setting unit time delay t；
Remote control sends address signal to all displays, and every display enters the address of itself and the address signal that receives
Row contrast, identical, the selected handshaking line simultaneously of the display is drawn high to high level；
If selected display is not selected, all displays postpone the nt times to other displays respectively according to the address n of distribution
Device is broadcasted, and the wherein minimum display in address is broadcasted first, if now choosing selected display, the electricity of handshaking line
It is flat to be drawn high from low level to high level, and other displays are then checked for then no longer broadcasting after being high level to handshaking line；If its
His display checks handshaking line for low level, proceeds broadcast according to sequence of addresses, until choosing selected display, chooses
When handshaking line level drawn high from low level to high level；
Display completes time delay Tmax again after broadcast address signal, and handshaking line is pulled to low level.
2. multi-display addressing control method according to claim 1, it is characterised in that the unit delay time t is
100us, Tmax>t*n.
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| CN201410695666.3A CN104464682B (en) | 2014-11-26 | 2014-11-26 | A kind of multi-display addressing control device and control method |
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| CN201410695666.3A CN104464682B (en) | 2014-11-26 | 2014-11-26 | A kind of multi-display addressing control device and control method |
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| CN104464682A CN104464682A (en) | 2015-03-25 |
| CN104464682B true CN104464682B (en) | 2017-09-26 |
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| CN108038638B (en) * | 2017-12-04 | 2019-03-05 | 中国科学院南京地理与湖泊研究所 | A kind of site selecting method and device of the logistics supply chain based on relationship type business data |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080054664A (en) * | 2006-12-13 | 2008-06-19 | 삼성전자주식회사 | Image forming system, wireless communication system and received message informing method thereof |
| CN201440263U (en) * | 2009-07-15 | 2010-04-21 | 广东威创视讯科技股份有限公司 | Wireless control system for spliced display wall |
| US7724270B1 (en) * | 2000-11-08 | 2010-05-25 | Palm, Inc. | Apparatus and methods to achieve a variable color pixel border on a negative mode screen with a passive matrix drive |
| CN102012796A (en) * | 2010-11-19 | 2011-04-13 | 广东威创视讯科技股份有限公司 | Spliced wall control command transmission method and device |
| CN102736885A (en) * | 2012-06-28 | 2012-10-17 | 江苏清投视讯科技有限公司 | Multi-screen display technology based on wireless transmission |
| CN202871262U (en) * | 2012-10-17 | 2013-04-10 | 深圳市汇宇朗景科技有限公司 | ID address distribution device of liquid crystal spliced curtain wall |
-
2014
- 2014-11-26 CN CN201410695666.3A patent/CN104464682B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7724270B1 (en) * | 2000-11-08 | 2010-05-25 | Palm, Inc. | Apparatus and methods to achieve a variable color pixel border on a negative mode screen with a passive matrix drive |
| KR20080054664A (en) * | 2006-12-13 | 2008-06-19 | 삼성전자주식회사 | Image forming system, wireless communication system and received message informing method thereof |
| CN201440263U (en) * | 2009-07-15 | 2010-04-21 | 广东威创视讯科技股份有限公司 | Wireless control system for spliced display wall |
| CN102012796A (en) * | 2010-11-19 | 2011-04-13 | 广东威创视讯科技股份有限公司 | Spliced wall control command transmission method and device |
| CN102736885A (en) * | 2012-06-28 | 2012-10-17 | 江苏清投视讯科技有限公司 | Multi-screen display technology based on wireless transmission |
| CN202871262U (en) * | 2012-10-17 | 2013-04-10 | 深圳市汇宇朗景科技有限公司 | ID address distribution device of liquid crystal spliced curtain wall |
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Effective date of registration: 20190613 Address after: 210000 2nd Floor, 81 Shitoucheng, Gulou District, Nanjing, Jiangsu Province Patentee after: Nanjing Xinshi Culture Industry Co., Ltd. Address before: 210000 South 104, South Building, East Orange 06, 15 Fengji Avenue, Banqiao, Yuhuatai District, Nanjing, Jiangsu Province Patentee before: Zhang Gang |
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Address after: 210000 2nd Floor, 81 Shitoucheng, Gulou District, Nanjing, Jiangsu Province Patentee after: Xinaoshi Jiangsu culture industry Co., Ltd Address before: 210000 2nd Floor, 81 Shitoucheng, Gulou District, Nanjing, Jiangsu Province Patentee before: Nanjing Xinshi Culture Industry Co., Ltd. |
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Denomination of invention: A multi display location control device and control method Effective date of registration: 20210923 Granted publication date: 20170926 Pledgee: Zijin Branch of Nanjing Bank Co.,Ltd. Pledgor: Xinaoshi Jiangsu culture industry Co.,Ltd. Registration number: Y2021980009744 |
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