CN103680405A - LED display system and safe signal switching method thereof - Google Patents
LED display system and safe signal switching method thereof Download PDFInfo
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- CN103680405A CN103680405A CN201310632873.XA CN201310632873A CN103680405A CN 103680405 A CN103680405 A CN 103680405A CN 201310632873 A CN201310632873 A CN 201310632873A CN 103680405 A CN103680405 A CN 103680405A
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Abstract
The invention discloses a display system and a safe signal switching method thereof. The system comprises a signal source, an LED display screen controller, an LED display screen and a computer. The signal source, the LED display screen controller and the LED display screen are connected sequentially, and fingerprint control software is operated in the computer. The LED display screen controller comprises a fingerprint module and a WIFI (wireless fidelity) module which are connected with a control card of the controller. The computer is connected with the WIFI module through a local area network. The safe signal switching method includes monitoring signal interruption and matching fingerprints. The fingerprints are collected to be matched after the signal interruption is monitored, and switched signals are displayed only after successful matching. According to the technical scheme, the LED display system can monitor the signal interruption, allow the LED display screen to display the last frame of image before interruption or a black screen at the first time after signal interruption, then judge whether signal switching is legal or not according to the fingerprints and finally display the interrupted signals only after successful fingerprint matching, so that illegal signal switching can be avoided, and safety and legality of pictures displayed by the LED display screen can be guaranteed.
Description
Technical field
The present invention relates to LED display technique field, be specifically related to a kind of display system and realize the method that signals security switches.
Background technology
Current LED display system as shown in Figure 1, comprising: signal source, LED display controller and LED display, signal source is connected with LED display by LED display controller.Signal source provides input signal for LED display controller, and LED display controller exports the signal of signal source input to LED display and realizes and showing.
In the LED display system of this kind of structure, after switched input signal, LED display controller directly exports signal to LED display and without any control, thereby causes LED display may show illegal or violated content, thereby needs 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, solves in current LED display system after switched input signal, causes LED display may show the problem of illegal or objectionable content.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A LED display system, comprises the signal source, LED display controller and the LED display that are linked in sequence, and the signal of signal source output is presented in LED display under the control of LED display controller; Described LED display controller also comprises fingerprint module and WIFI module, and described fingerprint module is all connected with the LED display control card of LED display controller with WIFI module; Described LED display system also comprises that operation has fingerprint to control the computing machine of software, and described computing machine is connected with the WIFI module of described LED displaying screen controller by LAN (Local Area Network).
Two of technical matters to be solved by this invention is corresponding signals security changing methods that a kind of LED display system is provided, and solves in current LED display system after switched input signal, causes LED display may show the problem of illegal or objectionable content.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A signals security changing method for LED display system, it realizes a kind of signals security changing method of LED display system based on aforesaid a kind of LED display system, and the signals security changing method of this kind of LED display system comprises the steps:
S1), monitor signal interrupts: after system boot operation; whether the signal of LED display control card circulatory monitoring signal source output interrupts; if do not interrupt continuing circulatory monitoring; if interrupt, think that switching has occurred signal; go to step S2, and make LED display show the last frame picture before interrupting or show blank screen simultaneously;
S2), coupling fingerprint: gather fingerprint by fingerprint module, and by LAN (Local Area Network), send to computing machine by WIFI module, by the fingerprint on computing machine, controlling software mates collected fingerprint with default finger print data, if fingerprint matching success shows signal redirect after switching and returns step S1, returns step S1 if mate unsuccessful redirect.
In preferred technical scheme, in described step S2, also comprise step S22), fingerprint matching counting: after fingerprint matching is unsuccessful, directly step S1 is not returned in redirect, but further judge whether fingerprint matching counting reaches five times, if reach five times redirect return step S1, if also do not reach five times redirect return step S2 and continue coupling fingerprint.
The invention has the beneficial effects as follows:
Adopted a kind of LED display system of the signals security changing method of a kind of LED display system of technical solution of the present invention, because it can monitor signal interruption, and after signal interruption, the very first time allows LED display show last frame image or the blank screen before interrupting, and then judge whether it is that legal signal switches by fingerprint, only has the signal of having no progeny in just showing after fingerprint matching success, thereby can avoid illegal signal to switch, guarantee security and the legitimacy of the shown picture of LED display.
Accompanying drawing explanation
Fig. 1 is the theory diagram of existing LED display system;
Fig. 2 is the topology diagram of LED display system in the specific embodiment of the invention;
Fig. 3 is the process flow diagram that in the specific embodiment of the invention, LED display system realizes signals security changing method.
Embodiment
A kind of LED display system that the specific embodiment of the invention provides as shown in Figure 2, comprises the signal source, LED display controller and the LED display that are linked in sequence, and the signal of signal source output is presented in LED display under the control of LED display controller; Described LED display controller also comprises fingerprint module and WIFI module, and described fingerprint module is all connected with the LED display control card of LED display controller with WIFI module; Described LED display system also comprises that operation has fingerprint to control the computing machine (PC) of software, and described computing machine is connected with the WIFI module of described LED display controller by LAN (Local Area Network).
The signals security changing method of a kind of LED display system that the specific embodiment of the invention provides as shown in Figure 3, it realizes a kind of signals security changing method of LED display system based on aforesaid a kind of LED display system, the signals security changing method of this kind of LED display system comprises the steps:
S1), monitor signal interrupts: after system boot operation; whether the signal of LED display control card circulatory monitoring signal source output interrupts; if do not interrupt continuing circulatory monitoring; if interrupt, think that switching has occurred signal; go to step S2, and make LED display show the last frame picture before interrupting or show blank screen simultaneously;
S2), coupling fingerprint: gather fingerprint by fingerprint module, and by LAN (Local Area Network), send to computing machine by WIFI module, by the fingerprint on computing machine, controlling software mates collected fingerprint with default finger print data, if fingerprint matching success shows signal redirect after switching and returns step S1, returns step S1 if mate unsuccessful redirect.
Adopted a kind of LED display system of the signals security changing method of a kind of LED display system of specific embodiment of the invention technical scheme, because it can monitor signal interruption, and after signal interruption, the very first time allows LED display show last frame image or the blank screen before interrupting, and then judge whether it is that legal signal switches by fingerprint, only has the signal of having no progeny in just showing after fingerprint matching success, thereby can avoid illegal signal to switch, guarantee security and the legitimacy of the shown picture of LED display.
In preferred technical scheme, in described step S2, also comprise step S22), fingerprint matching counting: after fingerprint matching is unsuccessful, directly step S1 is not returned in redirect, but further judge whether fingerprint matching counting reaches five times, if reach five times redirect return step S1, if also do not reach five times redirect return step S2 and continue coupling fingerprint.Chance is provided five times like this, has well avoided legal signal to switch because of the problem of fingerprint collecting and can not occur by the situation of coupling.
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 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 (3)
1. a LED display system, comprise the signal source, LED display controller and the LED display that are linked in sequence, the signal of signal source output is presented in LED display under the control of LED display controller, it is characterized in that, described LED display controller also comprises fingerprint module and WIFI module, and described fingerprint module is all connected with the LED display control card of LED display controller with WIFI module; Described LED display system also comprises that operation has fingerprint to control the computing machine of software, and described computing machine is connected with the WIFI module of described LED display controller by LAN (Local Area Network).
2. a signals security changing method for LED display system, it realizes a kind of signals security changing method of LED display system based on a kind of LED display system claimed in claim 1, and the signals security changing method of this kind of LED display system comprises the steps:
S1), monitor signal interrupts: after system boot operation; whether the signal of LED display control card circulatory monitoring signal source output interrupts; if do not interrupt continuing circulatory monitoring; if interrupt, think that switching has occurred signal; go to step S2, and make LED display show the last frame picture before interrupting or show blank screen simultaneously;
S2), coupling fingerprint: gather fingerprint by fingerprint module, and by LAN (Local Area Network), send to computing machine by WIFI module, by the fingerprint on computing machine, controlling software mates collected fingerprint with default finger print data, if fingerprint matching success shows signal redirect after switching and returns step S1, returns step S1 if mate unsuccessful redirect.
3. the signals security changing method of a kind of LED display system as claimed in claim 2, is characterized in that, in described step S2, also comprises:
Step S22), fingerprint matching counting: after fingerprint matching is unsuccessful, directly step S1 is not returned in redirect, but further judge whether fingerprint matching counting reaches five times, if reach five times redirect return step S1, if also do not reach five times redirect return step S2 and continue coupling fingerprint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310632873.XA CN103680405A (en) | 2013-11-29 | 2013-11-29 | LED display system and safe signal switching method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310632873.XA CN103680405A (en) | 2013-11-29 | 2013-11-29 | LED display system and safe signal switching method thereof |
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| CN103680405A true CN103680405A (en) | 2014-03-26 |
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| CN201310632873.XA Pending CN103680405A (en) | 2013-11-29 | 2013-11-29 | LED display system and safe signal switching method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103997836A (en) * | 2014-06-09 | 2014-08-20 | 奇瑞汽车股份有限公司 | Automobile LED interior trim atmosphere lamp system and control method thereof |
| CN109905484A (en) * | 2019-03-12 | 2019-06-18 | 杭州联驱科技有限公司 | Display system and display control 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 |
| CN101951471A (en) * | 2010-08-24 | 2011-01-19 | 冠捷显示科技（厦门）有限公司 | Fingerprint locking technology based on display system |
| CN201842053U (en) * | 2010-10-15 | 2011-05-25 | 长安大学 | Fingerprint identification based automobile theft-proof device |
| CN103413518A (en) * | 2013-07-03 | 2013-11-27 | 深圳市奥拓电子股份有限公司 | LED display screen system, and method of controlling signal source safety |
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- 2013-11-29 CN CN201310632873.XA patent/CN103680405A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101951471A (en) * | 2010-08-24 | 2011-01-19 | 冠捷显示科技（厦门）有限公司 | Fingerprint locking technology based on display system |
| CN201842053U (en) * | 2010-10-15 | 2011-05-25 | 长安大学 | Fingerprint identification based automobile theft-proof device |
| CN103413518A (en) * | 2013-07-03 | 2013-11-27 | 深圳市奥拓电子股份有限公司 | LED display screen system, and method of controlling signal source safety |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103997836A (en) * | 2014-06-09 | 2014-08-20 | 奇瑞汽车股份有限公司 | Automobile LED interior trim atmosphere lamp system and control method thereof |
| CN109905484A (en) * | 2019-03-12 | 2019-06-18 | 杭州联驱科技有限公司 | Display system and display control method |
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Application publication date: 20140326 |
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