CN103413518A - LED display screen system, and method of controlling signal source safety - Google Patents
LED display screen system, and method of controlling signal source safety Download PDFInfo
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- CN103413518A CN103413518A CN2013102773264A CN201310277326A CN103413518A CN 103413518 A CN103413518 A CN 103413518A CN 2013102773264 A CN2013102773264 A CN 2013102773264A CN 201310277326 A CN201310277326 A CN 201310277326A CN 103413518 A CN103413518 A CN 103413518A
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- signal source
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- screen locking
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Abstract
The invention discloses an LED display screen system and a method of controlling signal source safety. The system includes a control computer, an LED display screen controller, and an LED display screen which are sequentially connected. The LED display screen controller comprises: a signal source interruption monitoring module for real-time monitoring whether an inputted signal source is interrupted, and a lock screen module for locking a screen when the signal source interruption monitoring module monitors that the inputted signal source is interrupted; and the control computer comprises an unlock screen module to remove a lock screen state. According to the LED display screen system adopting the method of controlling signal source safety of the technical scheme of the invention, when the illegal person switches the signal source, the signal source interruption monitoring module can surely detect that the signal source is interrupted, so as to trigger the lock screen module to act; the image displayed by the LED display is frozen at the last frame of the displayed image before the signal source is interrupted; and the illegal signal source is ensured not to be displayed on the LED display screen, so as to ensure the information and image safety published by the LED display screen.
Description
Technical field
The present invention relates to LED display technique field, be specifically related to a kind of method of LED display system and control signal source safety thereof.
Background technology
Rapidly, various LED large-size screen monitors have more and more entered people's the visual field in LED display technique development in recent years.Generally as shown in Figure 1, the control computer expert crosses the RS232/485 serial ports and the DVI interface is connected with the LED display controller for current LED display system, and the LED display controller is connected with LED display again.Control on computer LED display control software is installed, be responsible for providing the programme signal source.The LED display controller claims again the LED display control card, and it is the core component that forms the LED display system, and main being responsible for receives from the control command of controlling the computer serial ports and the signal source of DVI interface.And LED display is accepted the control of LED display controller, and the picture that provides of display source signal.
In above-mentioned LED display system, control the computer expert and cross RS232/485 serial ports transmission control command, the screen body parameters such as the ON/OFF screen of control LED display, brightness regulation, colour temperature.By the DVI interface, signal source is sent to the LED display controller simultaneously.The problem existed is, when the LED display system is being moved, to allow the user to change signal source.Such as: disconnect and control computer display card by the signal source that the DVI interface sends, use the signal source of DVD player output instead.After the signal source switching, the LED display controller can continue to receive new signal source, and controls the program picture that LED display shows new signal source.In technique scheme, because the switching of signal source is not limited, may bring serious safety problem thus, such as invasion equipment can carry out the illegal contents publicity by attacking the LED display signal source.The lawless person need not break through the rights of using of controlling computer, only needs the DVI cable is pulled up from controlling computer, is connected to own invasion equipment and can arrives purpose.As shown in Figure 2, Falun Gong or terroristic lawless person cut off the legal signal source of LED display system, re-use an invasion equipment (PC or DVD player) illegal signal source is exported to the LED display controller, the illegal contents that will cause invasion equipment to provide is play on LED display, thereby likely upset social order, and may cause the serious consequences such as riot.
In sum, the safety of the existing uncontrollable signal source of LED display system, easily give lawless person's opportunity, has major safety risks, thereby need to improve.
Summary of the invention
One of technical matters to be solved by this invention is to provide a kind of LED display system, and the safety that it can the control signal source overcomes existing LED display system and easily to the lawless person, invades the potential safety hazard of LED display system opportunity.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of LED display system, comprise the control computer, LED display controller and the LED display that are linked in sequence; Described LED display controller has: whether the signal source for the Real-Time Monitoring input signal source interruption of interrupting monitoring modular has occurred; The screen locking module of carrying out screen locking when interrupting monitoring module monitors to the signal source interrupt inputted in signal source; And described control computer has the solution panel module that can remove screen lock state, after for the possibility in illegal invasion, being excluded, remove the screen locking of screen locking module to recover normal play.
In preferred technical scheme, described control computer also has and can be used for controlling described signal source and interrupt the open/close signal source of monitoring modular and interrupt monitoring switch.
In preferred technical scheme, described screen locking refers to the last frame of the shown video freezing of LED display before interruption.
Two of technical matters to be solved by this invention is corresponding methods that a kind of LED display system control signal source safety is provided, its can the control signal source safety, overcome existing LED display system and easily to the lawless person, invade the potential safety hazard of LED display system opportunity.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
The method of a kind of LED display system control signal source safety, it carrys out the safety in control signal source based on aforesaid a kind of LED display system, and the method comprises the steps:
S1), monitoring: after system powered on and moves, signal source interruption monitoring modular Real-Time Monitoring inputted into the signal source of LED display controller whether interruption has occurred;
S2), screen locking: signal source is interrupted monitoring modular and is in a single day monitored the signal source interrupt, triggers the screen locking module last frame of video freezing before interruption that LED display is shown;
S3), separate screen: after the possibility of illegal invasion was excluded, described solution panel module was removed the screen locking of screen locking module, thereby recovered the normal play of LED display system.
In preferred technical scheme, described control computer also has and can be used for controlling described signal source and interrupt the open/close signal source of monitoring modular and interrupt monitoring switch; The method comprises the step of " temporary transient shielding protection ": before the legal interruption of signal source; by this signal source, interrupt monitoring switch temporary close signal source and interrupt monitoring modular, the legal switching signal source that the legal interruption of described signal source includes but not limited to and legal maintained LED display screen system.
In preferred technical scheme, described screen locking refers to the last frame of the shown video freezing of LED display before interruption.
The invention has the beneficial effects as follows: a kind of LED display system that has adopted the method for a kind of LED display system control signal of technical solution of the present invention source safety, in the time of lawless person's switching signal source, signal source interruption monitoring modular must detect signal source interruption has occurred, thereby trigger the action of screen locking module, the last frame of the video freezing that LED display is shown shown picture before signal source is interrupted, the image of guaranteeing the illegal signals source can not show, thereby guarantee that LED display releases news and the safety of picture on LED display.Invasion can be used the solution panel module after getting rid of, and removes the lock-out state of LED display, recovers normal play.
The accompanying drawing explanation
Fig. 1 is the theory diagram of existing LED display system;
Fig. 2 is the schematic diagram that the lawless person invades existing LED display system;
Fig. 3 is the theory diagram of specific embodiment of the invention LED display system.
The invention will be further described below in conjunction with accompanying drawing.
Embodiment
For fear of the lawless person, utilize invasion equipment illegally to switch the signal source of LED display system, thereby avoid the illegal information of LED display system plays, a kind of LED display system that this embodiment provides as shown in Figure 3, the same with existing LED display system, also comprise: control computer, LED display controller and LED display.With the difference of prior art, be, control in computer and also comprise: separate panel module; In the LED display controller, set up signal source and interrupted monitoring modular and screen locking module.
Wherein: whether the signal source that signal source interruption monitoring modular is inputted into for Real-Time Monitoring interruption has occurred; The screen locking module, for in signal source, interrupt monitoring module monitors to input come in the signal source interrupt time, the video freezing that LED display is shown last frame before interruption, being locked in last frame can be so that LED display be unlikely to blank screen or shows other inappropriate picture; Separate panel module for removing the screen locking action of screen locking module.Like this, in the time of lawless person's switching signal source, signal source interruption monitoring modular must detect signal source interruption has occurred, thereby trigger the action of screen locking module, the last frame of the video freezing that LED display is shown shown picture before signal source is interrupted, the image of guaranteeing the illegal signals source can not show, thereby guarantee that LED display releases news and the safety of picture on LED display.Invasion can be used the solution panel module after getting rid of, and removes the lock-out state of LED display, recovers normal play.
The public media that LED display is wide as a kind of audient, impact is large, the security of its play content can not be ignored.The specific embodiment of the invention can be carried out the illegal contents publicity by attacking the LED display signal source by Intrusion prevention equipment, strengthens the health of LED display, positive the effect of publicity, has larger practical value.
But, misoperation easily occurs in aforesaid technical scheme, when at legal switching signal source or to LED display, carrying out legal the maintenance, also may trigger the action of screen locking module, at this moment may need frequently by the solution panel module, to separate screen system is worked again, thereby may have inconvenience.In preferred technical scheme, also on the control computer, set up signal source and interrupted monitoring switch, this signal source is interrupted monitoring switch and for controlling described signal source, is interrupted the switch of monitoring modular.Carrying out legal switching and conventional maintenance while needing, can interrupt detector switch by this signal source and close described signal source interruption monitoring modular, during the normal operation of LED display system, by this signal source, interrupt detector switch and open described signal source interruption monitoring modular.
It should be stressed, one skilled in the art can understand the above: signal source is interrupted monitoring switch, solution panel module, signal source interrupts monitoring modular and the screen locking module can go to realize by hardware, also can on certain hardware foundation, go to realize by software, also can go to realize by software and hardware combining.But under current technical conditions, signal source is interrupted monitoring switch and is conciliate panel module and at the control software of controlling computer, get on to realize more simple and conveniently.And signal source is interrupted monitoring modular and the screen locking module can realize by software, can also realize by hardware, preferably the mode by software and hardware combining realizes, this paper is not described in detail in this, but these implementations all should be within protection scope of the present invention.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. LED display system, comprise and being linked in sequence: control computer, LED display controller and LED display, it is characterized in that, described LED display controller has: whether the signal source for the Real-Time Monitoring input signal source interruption of interrupting monitoring modular has occurred; The screen locking module of carrying out screen locking when interrupting monitoring module monitors to the signal source interrupt inputted in signal source; And described control computer has the solution panel module that can remove screen lock state, after for the possibility in illegal invasion, being excluded, remove the screen locking of screen locking module to recover normal play.
2. a kind of LED display system as claimed in claim 1, is characterized in that, described control computer also has and can be used for controlling described signal source and interrupt the open/close signal source of monitoring modular and interrupt monitoring switch.
3. a kind of LED display system as claimed in claim 1 or 2, is characterized in that, described screen locking refers to the last frame of the shown video freezing of LED display before interruption.
4. the method for a LED display system control signal source safety, it carrys out the safety in control signal source based on a kind of LED display system claimed in claim 1, and the method comprises the steps:
S1), monitoring: after system powered on and moves, signal source interruption monitoring modular Real-Time Monitoring inputted into the signal source of LED display controller whether interruption has occurred;
S2), screen locking: signal source is interrupted monitoring modular and is in a single day monitored the signal source interrupt, triggers the screen locking module last frame of video freezing before interruption that LED display is shown;
S3), separate screen: after the possibility of illegal invasion was excluded, described solution panel module was removed the screen locking of screen locking module, thereby recovered the normal play of LED display system.
5. the method for a kind of LED display system control signal as claimed in claim 4 source safety, is characterized in that, described control computer also has and can be used for controlling described signal source and interrupt the open/close signal source of monitoring modular and interrupt monitoring switch; The method comprises the step of " temporary transient shielding protection ": before the legal interruption of signal source; by this signal source, interrupt monitoring switch temporary close signal source and interrupt monitoring modular, the legal switching signal source that the legal interruption of described signal source includes but not limited to and legal maintained LED display screen system.
6. the method for a kind of LED display system control signal as described as claim 4 or 5 source safety, is characterized in that, described screen locking refers to the last frame of the shown video freezing of LED display before interruption.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310277326.4A CN103413518B (en) | 2013-07-03 | 2013-07-03 | A kind of method of LED display screen system and control signal source safety thereof |
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| CN201310277326.4A CN103413518B (en) | 2013-07-03 | 2013-07-03 | A kind of method of LED display screen system and control signal source safety thereof |
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| CN103413518A true CN103413518A (en) | 2013-11-27 |
| CN103413518B CN103413518B (en) | 2016-04-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103680405A (en) * | 2013-11-29 | 2014-03-26 | 深圳市奥拓电子股份有限公司 | LED display system and safe signal switching method thereof |
| WO2018068476A1 (en) * | 2016-10-12 | 2018-04-19 | 深圳市优景观复光电有限公司 | Interactive led display apparatus and display method |
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| US20050041807A1 (en) * | 2003-08-04 | 2005-02-24 | Sung-Tae Lee | Display apparatus having lock operation for external input and method of implementing lock operation |
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| CN101662596A (en) * | 2008-08-29 | 2010-03-03 | 深圳中电数码显示有限公司 | Large screen display system |
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| CN102522065A (en) * | 2011-12-23 | 2012-06-27 | 深圳市奥拓电子股份有限公司 | LED display system and communication control method thereof |
| KR20130065757A (en) * | 2011-11-28 | 2013-06-20 | 오금동 | Multi-function display system and display method using the same |
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Patent Citations (6)
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| US20050041807A1 (en) * | 2003-08-04 | 2005-02-24 | Sung-Tae Lee | Display apparatus having lock operation for external input and method of implementing lock operation |
| US20050057434A1 (en) * | 2003-08-30 | 2005-03-17 | Samsung Electronics Co., Ltd. | Multi screen display system and control method thereof |
| CN101662596A (en) * | 2008-08-29 | 2010-03-03 | 深圳中电数码显示有限公司 | Large screen display system |
| CN202102690U (en) * | 2011-06-13 | 2012-01-04 | 南京德普达电子技术有限公司 | All-color big screen display controller |
| KR20130065757A (en) * | 2011-11-28 | 2013-06-20 | 오금동 | Multi-function display system and display method using the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103680405A (en) * | 2013-11-29 | 2014-03-26 | 深圳市奥拓电子股份有限公司 | LED display system and safe signal switching method thereof |
| WO2018068476A1 (en) * | 2016-10-12 | 2018-04-19 | 深圳市优景观复光电有限公司 | Interactive led display apparatus and display method |
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| CN103413518B (en) | 2016-04-20 |
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Address after: 518000 1805, tower 2, Shenye Jinyuan Building, No.112, Qingshuihe 1st Road, Qingshuihe community, Luohu District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN AOTO ELECTRONICS Co.,Ltd. Address before: 518000 Guangdong city of Shenzhen province Nanshan District high tech Industrial Park building T2 A6-B Patentee before: SHENZHEN AOTO ELECTRONICS Co.,Ltd. |
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Granted publication date: 20160420 Termination date: 20210703 |