CN104464682A - Multi-displayer address selecting control device and method - Google Patents
Multi-displayer address selecting control device and method Download PDFInfo
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- CN104464682A CN104464682A CN201410695666.3A CN201410695666A CN104464682A CN 104464682 A CN104464682 A CN 104464682A CN 201410695666 A CN201410695666 A CN 201410695666A CN 104464682 A CN104464682 A CN 104464682A
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Abstract
The invention discloses a multi-displayer address selecting control device and method. The control device comprises a controller, an RF module, an infrared receiving module, a functional switch, an address switch, a keyboard and mouse module, an IO interface, an RS485 interface and an indicator lamp, wherein the RF module, the infrared receiving module, the functional switch, the address switch, the keyboard and mouse module, the IO interface, the RS485 interface and the indicator lamp are connected with the controller. According to the multi-displayer address selecting control device, operation and adjustment of multiple displayers are facilitated. According to the multi-displayer address selecting control method, after primary broadcasting of a single-chip microcomputer, secondary broadcasting is added, the time sequence is adjusted by holding a hand-made line, and broadcasting is prevented from being carried out too many times. The antijamming capability of a multi-displayer system is improved through two-time broadcasting, and it is ensured that the displayers are 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
Along with the development of society, LCDs obtains in various occasion and widely applies, and has occurred in a place simultaneously, the application scenarios of multiple LCDs is set, usually LCDs is arranged to the liquid crystal wall of M*N, M and N >=1, or with the multiple stage LCDs that form of landing is placed.At this time regulating the parameter of LCDs, is generally the remote control head only connecting a liquid crystal indicator, after waiting optimum configurations good, then changes to another.Special in liquid crystal-spliced screen, remote control signal receiver window cannot be set before every platform LCDs, normally people remote control or button later, another person observes liquid crystal-spliced screen menu above carries out parameter adjustment (such as brightness, contrast), transmit current state mutually by the mode of voice, operation has inconvenience more.Can carry out some display selected by nonshared control unit or computing machine at present, and regulate its parameter, for computer installation when screen rear or machine room, adjustment is got up also unusual inconvenience.
When needing to do different lecturees to the liquid crystal demonstration screen of multiple different built-in computer, as play the PPT of certain LCDs, or designated pictures or screen, at this moment traditional telepilot is helpless, phenomenon is one by telepilot, and multiple devices can respond together.Cannot operate the LCDs of specifying before multiple LCDs, use inconvenience very, limit the application of partial liquid crystal display screen simultaneously, some function cannot realize.
Summary of the invention
Goal of the invention: the present invention proposes a kind of multi-display addressing control device and control method, is convenient to carry out selected controlling and adjustment parameter to multi-display, improves antijamming capability simultaneously.
Technical scheme: the technical solution used in the present invention is a kind of multi-display addressing control device, comprise controller, the RF module be connected with controller, infrared receiving module, functional switch, address switch, key mouse module, I/O interface, RS485 interface and pilot lamp.
Preferably, described controller is STC15F2K16S2 single-chip microcomputer.Described RS485 interface adopts MAX485 chip, and key mouse module adopts UI011.
A kind of multi-display addressing control method, comprises the following steps:
Arranging an initial voltage be connected with all displays is low level handshaking line, and this handshaking line is also connected with single-chip microcomputer.Every platform display all gives an address n (n is positive integer), and setting unit t time delay;
Telepilot sends address signal to all displays, and the address of self and the address signal received contrast by every platform display, and identical, the while that this display being selected, handshaking line is drawn high to high level;
If selected display is not selected, all displays is according to the address n distributed, the delay nt time broadcasts other displays respectively, first the display that wherein address is minimum broadcasts, the level of handshaking line is drawn high to high level from low level simultaneously, and it is then no longer broadcast after high level that other displays are checked through handshaking line subsequently;
Display to complete after broadcast address signal Tmax time delay again, and handshaking line is pulled to low level.
Preferably, described unit delay time t is 100us, Tmax>t*n.
Beneficial effect: a kind of multi-display addressing of the present invention control device, facilitates operation and the adjustment of multi-display.And a kind of multi-display addressing control method is after single-chip microcomputer is once broadcasted, adds secondary broadcast and regulate sequential by handshaking line, preventing too much number of broadcast times.Improve multi-display system antijamming capability through twice broadcast, guarantee that display is selected.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of multi-display addressing of the present invention control device;
Fig. 2 is the workflow diagram of a kind of multi-display addressing of the present invention control method.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to various equivalents of the present invention has all fallen within the application's claims limited range.
As shown in Figure 1, a kind of multi-display addressing of the present invention control device comprises STC15F2K16S2 single-chip microcomputer, the RF module be connected with single-chip microcomputer, infrared receiving module, functional switch, address switch, key mouse module, I/O interface, RS485 interface and pilot lamp.Wherein RS485 interface adopts MAX485 chip.Key mouse module adopts UI011, receive the mouse-keyboard order that single-chip microcomputer sends, and the code of analog mouse and keyboard is transferred to computing machine by USB interface.
User utilizes the infrared or radio-frequency (RF) remote in hand to send a signal to described infrared receiving module or RF module, and concrete infrared receiving module or the RF module of using then is selected by functional switch.Infrared remote controller high directivity, is applicable to most of occasion and uses.RF radio-frequency (RF) remote operating distance is far away.
The control signal that telepilot sends comprises address signal and actuating signal.After infrared receiving module or RF module receive control signal, also produce corresponding signal and send to single-chip microcomputer.Single-chip microcomputer is sent to address switch to the address information in received control signal, and address switch to be decoded the display address obtaining specifically will controlling to address information.The present invention uses 8 bit address switches, can control at most 256 displays.As shown in Figure 2, described RS485 interface is connected on the RS485 interface of each display.
The display address that address switch decodes is sent to single-chip microcomputer, and single-chip microcomputer chooses the display of respective display address by RS485 interface.Single-chip microcomputer changes the color of pilot lamp simultaneously, or shows relevant information on the display chosen, and reminds user.
After single-chip microcomputer processes the actuating signal in received signal, on the display having two kinds of modes to be sent to choose.One is that actuating signal is sent to key mouse module by single-chip microcomputer, produces corresponding mouse-keyboard operation signal and is sent to computing machine by USB interface, then be sent to the display chosen by computing machine by key mouse module; Another kind is actuating signal is directly sent to the display chosen by single-chip microcomputer Video processing plate by I/O interface.
Above-mentioned multi-display addressing control device also can by the mode of hardware or software, certain display selected all the time, like this from the everything signal of telepilot all only for this selected display.Described hardware mode can be jumper cap, toggle switch.Described software mode can be by address stored in nonerasable memory in single-chip microcomputer, conveniently calls at any time.
There is the problem of leaking choosing in existing multi-display system, namely when controller is broadcasted to all displays, that may really need to choose fails to receive address signals due to the problem such as sequential, noise when addressing.
Therefore the present invention proposes a kind of multi-display addressing control method, comprises the following steps:
Arrange a handshaking line be connected with all displays, this handshaking line is also connected with single-chip microcomputer.Every platform display all gives an address n (n is integer), and setting unit t time delay, such as selectable delay time t is 100us.
When single-chip microcomputer receives the address signal from telepilot, be transmitted to all displays at once, the address of self and the address signal received contrast by every platform display, and identical then this display is selected, and single-chip microcomputer draws high handshaking line to high level simultaneously;
If failed to shake hands, illustrate that the display that should choose fails to receive address signal.Now all displays are according to the address n distributed, and the delay nt time broadcasts other displays respectively, and first the display that wherein address is minimum broadcasts, and the level of handshaking line is drawn high to high level from low level by single-chip microcomputer simultaneously.And other displays due to time delay longer, they are checked through handshaking line is subsequently just no longer broadcast after high level.
Display to complete after broadcast address signal Tmax time delay again, and handshaking line is pulled to low level by single-chip microcomputer, waits for remote signal next time.Wherein Tmax>t*n, such as optional 50ms.
Above-mentioned control method, after failure of shaking hands, is selected a display to broadcast as main frame in an orderly manner, is regulated sequential, prevent too much number of broadcast times, improve multi-display system antijamming capability, guarantee that display is selected by handshaking line.
Claims (5)
1. a multi-display addressing control device, is characterized in that, comprises controller, the RF module be connected with controller, infrared receiving module, functional switch, address switch, key mouse module, I/O interface, RS485 interface and pilot lamp.
2. multi-display addressing control device according to claim 1, is characterized in that, described controller is STC15F2K16S2 single-chip microcomputer.
3. multi-display addressing control device according to claim 1, is characterized in that, described RS485 interface adopts MAX485 chip, and key mouse module adopts UI011.
4. a multi-display addressing control method, is characterized in that, comprises the following steps:
Arranging an initial voltage be connected with all displays is low level handshaking line, and this handshaking line is also connected with single-chip microcomputer.Every platform display all gives an address n (n is positive integer), and setting unit t time delay;
Telepilot sends address signal to all displays, and the address of self and the address signal received contrast by every platform display, and identical, the while that this display being selected, handshaking line is drawn high to high level;
If selected display is not selected, all displays is according to the address n distributed, the delay nt time broadcasts other displays respectively, first the display that wherein address is minimum broadcasts, the level of handshaking line is drawn high to high level from low level simultaneously, and it is then no longer broadcast after high level that other displays are checked through handshaking line subsequently;
Display to complete after broadcast address signal Tmax time delay again, and handshaking line is pulled to low level.
5. multi-display addressing control method according to claim 4, is characterized in that, described 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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| CN104464682B CN104464682B (en) | 2017-09-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108038638A (en) * | 2017-12-04 | 2018-05-15 | 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 |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108038638A (en) * | 2017-12-04 | 2018-05-15 | 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 |
| 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 |
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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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