CN105070249A - Lockable LED display screen control method and control system thereof - Google Patents
Lockable LED display screen control method and control system thereof Download PDFInfo
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- CN105070249A CN105070249A CN201510581980.3A CN201510581980A CN105070249A CN 105070249 A CN105070249 A CN 105070249A CN 201510581980 A CN201510581980 A CN 201510581980A CN 105070249 A CN105070249 A CN 105070249A
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Abstract
The invention relates to a lockable LED display screen control method and a control system thereof. The lockable LED display screen control method comprises the steps that: an intelligent terminal receives a display screen code and playback deadline time input by a user to generate a corresponding secret key, and sends the secret key to a processor through a communication device; the processor obtains the playback deadline time according to display screen code stored in the processor and the secret key from the communication device, and sends a control signal to an FPGA device when judging that the playback deadline time is greater than current time; and the FPGA device processes an original image signal from a video source input device to obtain a video image signal, and sends the video image signal to an LED scanner, so that the LED scanner controls an LED display screen corresponding to the display screen code input by the user to play before the playback cut-off time. The lockable LED display screen control method and the control system thereof can achieve the locking function of the LED display screen, can control the service time precisely, and prevents the LED display screen from being used secretly by other people.
Description
Technical field
The present invention relates to LED display control technology, particularly relating to can the LED display control method of locking and control system thereof.
Background technology
LED display is a kind of terminal device of electronic medium of modern public place, current control LED display has two kinds of control modes, and wherein one is that computing machine controls display screen, is synchronisation control means, also having a kind of is the form adopting player, is asynchronous controlling mode.But the LED display control system in current industry does not all possess latch functions, one-sided situation of stealing with LED giant-screen can not be avoided.
Summary of the invention
For the problems referred to above, an object of the present invention be to provide a kind of can the LED display control method of locking, it can realize the latch functions of LED display, precisely can control service time, prevents other people from stealing and uses.
One of for achieving the above object, the present invention adopts following technical scheme:
Can the LED display control method of locking, comprise the steps:
Step one: the display screen of intelligent terminal for reception user input is encoded and play closing time to generate corresponding key, this key is sent to processor by communication device simultaneously;
Step 2: processor is according to the display screen coding self stored and obtain from the key of communication device and play closing time, and determine described broadcasting when being greater than current time closing time, send a control signal to FPGA device;
Step 3: FPGA device is carried out process to the original image signal from video source input media and obtained video signal, and this video signal is sent to LED scanner, the LED display corresponding to encoding with the display screen making LED scanner control to input with user play arrive closing time before play.
Preferably, described step 2 comprises following sub-step:
Step 2A: processor receives the key from communication device;
Step 2B: obtain according to the display screen coding self stored and this key and play closing time;
Step 2C: judge whether described broadcasting is greater than current time closing time, if so, then performs step 2D, otherwise, export pick-off signal to FPGA device, to make FPGA device, the original image signal from video source input media is abandoned;
Step 2D: send a control signal to FPGA device.
Preferably, the quantity of described LED scanner is multiple, and the quantity of LED display is equal with the quantity of LED scanner, and LED scanner and LED display connect one to one.
Preferably, described processor is arm processor or MIPS processor.
Preferably, described video source input media comprises decoding chip and video source interface, and described video source interface is connected with FPGA device by decoding chip.
Further preferably, described video source interface comprises one or more in DVI interface, HDMI, USB interface and S-VIDEO interface.
Two of object of the present invention is to provide can the LED display control system of locking, and it can realize the function of one of the object of the invention.
For achieving the above object two, the present invention adopts following technical scheme:
Can the LED display control system of locking, comprise intelligent terminal, communication device, processor, FPGA device, video source input media, FPGA device, LED scanner and LED display; Described intelligent terminal is connected with processor by communication device, and described processor, video source input media are all connected with FPGA device with LED scanner, and described LED display is connected with LED scanner;
Intelligent terminal, for receiving the display screen coding of user's input and playing closing time to generate corresponding key, is sent to processor by this key by communication device simultaneously; Described processor, for the display screen coding that stores according to self with obtain from the key of communication device and play closing time, and determines described broadcasting when being greater than current time closing time, sends a control signal to FPGA device; Described FPGA device, video signal is obtained for carrying out process to the original image signal from video source input media after receiving control signal, and this video signal is sent to LED scanner, the LED display corresponding to encoding with the display screen making LED scanner control to input with user play arrive closing time before play.
Preferably, the quantity of described LED scanner is multiple, and the quantity of LED display is equal with the quantity of LED scanner, and LED scanner and LED display connect one to one.
Preferably, described processor is arm processor or MIPS processor.
Preferably, described video source input media comprises decoding chip and video source interface, and described video source interface is connected with FPGA device by decoding chip.
Compared to existing technology, beneficial effect of the present invention is:
The present invention can unrestricted choice LED display by input panel coding, use is stolen by unrelated person by can prevent LED display to the process of key, and user can pre-set voluntarily and play closing time, can reach the object precisely controlling service time.
Accompanying drawing explanation
Fig. 1 be of the present invention can the particular flow sheet of LED display control method of locking;
Fig. 2 be of the present invention can the function structure chart of LED display controlling party system of locking.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the present invention is described further:
See Fig. 1, the present embodiment provide a kind of can the LED display control method of locking, can intelligent control the broadcasting of LED display, it comprises the steps:
Step s1: the display screen of intelligent terminal for reception user input is encoded and play closing time to generate corresponding key, and this key and broadcasting are sent to processor by communication device closing time, this key is a kind of active coding simultaneously; In intelligent terminal run have corresponding password generate software, intelligent terminal is a kind of intelligent terminal, can but be not limited to PC, mobile phone, panel computer, software runtime environment can be windows, Android, linux or other.Intelligent terminal has corresponding input media, selects input to play closing time and input panel coding for user.Display screen is encoded to the sequence number of LED display, and each LED display has just possessed respective sequence number when dispatching from the factory, for other LED display as difference.Communication device is made up of corresponding control software design and transmission equipment, control software design can be arranged on the equipment such as computer or mobile phone, communication device is the communication facilitiess such as WIFI, and key and broadcasting are sent to processor via control software design by the mode such as cable network, WIFI, UART closing time.
Step s2: processor receives the key from communication device, and play closing time according to the display screen coding self stored and the acquisition of this key, in the present embodiment, intelligent terminal and communication device are a system, processor and other devices are another system, two independently system can respectively by two user operations, user A corresponds to intelligent terminal, user B corresponds to processor place system, user A is at intelligent terminal input panel coding and play closing time, intelligent terminal sends the terminal belonging to key to user B by communication device, terminal belonging to user B can be mobile phone, PC etc., this key is sent to processor by user B again, processor is decrypted this key, the process such as decoding, the key produced from intelligent terminal is through the process of related algorithm scrambled, the corresponding LED display of each processor, and each processor stores the display screen coding of corresponding LED display, the display screen coding that processor prestores according to it is decrypted computing in conjunction with key, just can obtain playing closing time, such as, the terminal that what the display screen coding inputted at intelligent terminal user A was corresponding is belonging to user B, but the terminal be by mistake sent to described in user C, the processor of that system that user C is corresponding carries out computing according to the display screen coding of himself and key, can not obtain playing closing time, illustrate display screen coding that user A inputs and user C system for LED display not corresponding,
Step s3: judge to play whether be greater than current time closing time, if, then perform step s4, otherwise, send pick-off signal to FPGA device, to make FPGA device, the original image signal from video source input media is abandoned, identical with foregoing, FPGA device just can not send original image signal after receiving pick-off signal, be equivalent to abandon this original image signal, in fact two conditions are related in step s2 and step s3, there is any one not meet, namely the not corresponding and/or reproduction time of display screen coding is less than current time, then send pick-off signal to FPGA device, FPGA device just can not send original image signal, be equivalent to abandon this original image signal.So-called broadcasting is greater than current time closing time, such as, broadcasting closing time of user's setting is 20:00 on September 20th, 2015, then mean and can to play before reaching this time, when the time reach this play closing time time, then processor sends pick-off signal to receiver module, current time contrasts with broadcasting closing time, for judging whether to reach this broadcasting closing time, if current time is 16:00 on September 20th, 2015, illustrate also not reach and play closing time, namely play and be greater than current time closing time.
Step s4: send a control signal to FPGA device;
Step s5:FPGA device carries out process to the original image signal from video source input media and obtains video signal, and this video signal is sent to LED scanner, the LED display corresponding to encoding with the display screen making LED scanner control to input with user play arrive closing time before play.The treatment technology of FPGA device to original image signal comprises image interception, image scaling, brightness adjustment, image rotation, image fractionation etc., described image interception and alternative cut-away view are as a part for data, also can full framely collect, described in image, pending original image signal is carried out convergent-divergent, with the resolution of applicable LED display, brightness adjustment can export the brightness of data according to light intensity or time period adjustment, video original signals different for angle can rotate with the vision of mating LED display by image rotation, image splits and then complete video signal is split into some packets.Include the FPGA of small-scale in LED scanner, such as model is the FPGA of EP4CE6, can carry out the process such as further image interception, be sent to LED display afterwards and drive this LED display to play this video signal video signal.
Be described with a case below:
User A is by intelligent terminal input panel coding XXXX, namely have selected the unique LED display corresponding to encoding with this display screen, user A also plays closing time according to self-demand input is simultaneously 20:00 on September 20th, 2015, intelligent terminal is encoded according to the display screen that user A inputs and is play and generates a string key " 1234 " closing time, and this key " 1234 " and broadcasting closing time " 20:00 on September 20th, 2015 " are sent in processor by communication device by intelligent terminal.Processor obtains playing closing time according to the display screen encoding operation of key and self storage, judge to play and whether be greater than current time closing time, here it should be noted that, processor inside itself has with clock, know local current time, this current time refers to the time of user A at processor input key, if current time is 16:00 on September 20th, 2015, namely play and be greater than current time closing time, now processor sends a control signal to FPGA device, FPGA device is connected with video source input media, after FPGA device receives control signal, then the original image signal of reception is sent to FPGA device, thus FPGA device is finally played back by LED display after being processed by this original image signal.If current time is 8:00 on September 21st, 2015, then current time is greater than and plays closing time, illustrates that then processor transmission pick-off signal is to FPGA device now already beyond this broadcasting closing time, FPGA device does not just send original image signal, directly abandons.
See Fig. 2, the present embodiment also provide a kind of can the LED display control system of locking, it comprises intelligent terminal, communication device, processor, FPGA device, video source input media, FPGA device, LED scanner and LED display; Described intelligent terminal is connected with processor by communication device, and described processor, video source input media are all connected with FPGA device with LED scanner, and described LED display is connected with LED scanner;
Described intelligent terminal, for receiving the display screen coding of user's input and playing closing time to generate corresponding key, is sent to processor by this key by communication device; Described processor, for the display screen coding that stores according to self with obtain from the key of communication device and play closing time, and determines described broadcasting when being greater than current time closing time, sends a control signal to FPGA device; Described FPGA device, video signal is obtained for carrying out process to the original image signal from video source input media after receiving control signal, and this video signal is sent to LED scanner, the LED display corresponding to encoding with the display screen making LED scanner control to input with user play arrive closing time before play.
Accordingly, the quantity of LED scanner is multiple, multiple LED scanner is all connected with FPGA device, or one of them LED scanner is connected with FPGA device, other LED scanners are connected with this LED scanner, and the quantity of LED display is equal with the quantity of LED scanner, LED display and LED scanner connect one to one.Processor is arm processor or MIPS processor.Video source input media comprises decoding chip and video source interface, and described video source interface is connected with FPGA device by decoding chip.Video source interface comprises one or more of DVI interface, HDMI, USB interface and S-VIDEO interface kind, and decoding chip includes analog codec chip and digital decoding chip, and digital decoding chip is all connected with FPGA device with analog codec chip.The signal that digital decoding chip is used for DVI interface, HDMI to import into carries out being decoded into original image signal, analog codec chip is used for the signal decoding that USB interface and S-VIDEO interface import into become original image signal, namely DVI interface and HDMI are all connected with digital decoding chip, and USB interface is all connected with analog codec chip with S-VIDEO interface.
To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (10)
1. can the LED display control method of locking, it is characterized in that, comprise the steps:
Step one: the display screen of intelligent terminal for reception user input is encoded and play closing time to generate corresponding key, this key is sent to processor by communication device simultaneously;
Step 2: processor is according to the display screen coding self stored and obtain from the key of communication device and play closing time, and determine described broadcasting when being greater than current time closing time, send a control signal to FPGA device;
Step 3: FPGA device is carried out process to the original image signal from video source input media and obtained video signal, and this video signal is sent to LED scanner, the LED display corresponding to encoding with the display screen making LED scanner control to input with user play arrive closing time before play.
2. as claimed in claim 1 can the LED display control method of locking, it is characterized in that, described step 2 comprises following sub-step:
Step 2A: processor receives the key from communication device;
Step 2B: obtain according to the display screen coding self stored and this key and play closing time;
Step 2C: judge whether described broadcasting is greater than current time closing time, if so, then performs step 2D, otherwise, export pick-off signal to FPGA device, to make FPGA device, the original image signal from video source input media is abandoned;
Step 2D: send a control signal to FPGA device.
3. as claimed in claim 1 can the LED display control method of locking, it is characterized in that, the quantity of described LED scanner is multiple, and the quantity of LED display is equal with the quantity of LED scanner, and LED scanner and LED display connect one to one.
4. as claimed in claim 1 can the LED display control method of locking, it is characterized in that, described processor is arm processor or MIPS processor.
5. as claimed in claim 1 can the LED display control method of locking, it is characterized in that, described video source input media comprises decoding chip and video source interface, and described video source interface is connected with FPGA device by decoding chip.
6. as claimed in claim 5 can the LED display control method of locking, it is characterized in that, described video source interface comprise in DVI interface, HDMI, USB interface and S-VIDEO interface one or more.
7. can the LED display control system of locking, it is characterized in that, comprise intelligent terminal, communication device, processor, FPGA device, video source input media, FPGA device, LED scanner and LED display; Described intelligent terminal is connected with processor by communication device, and described processor, video source input media are all connected with FPGA device with LED scanner, and described LED display is connected with LED scanner;
Intelligent terminal, for receiving the display screen coding of user's input and playing closing time to generate corresponding key, is sent to processor by this key by communication device simultaneously; Described processor, for the display screen coding that stores according to self with obtain from the key of communication device and play closing time, and determines described broadcasting when being greater than current time closing time, sends a control signal to FPGA device; Described FPGA device, video signal is obtained for carrying out process to the original image signal from video source input media after receiving control signal, and this video signal is sent to LED scanner, the LED display corresponding to encoding with the display screen making LED scanner control to input with user play arrive closing time before play.
8. as claimed in claim 7 can the LED display control system of locking, it is characterized in that, the quantity of described LED scanner is multiple, and the quantity of LED display is equal with the quantity of LED scanner, and LED scanner and LED display connect one to one.
9. as claimed in claim 7 can the LED display control system of locking, it is characterized in that, described processor is arm processor or MIPS processor.
10. as claimed in claim 7 can the LED display control system of locking, it is characterized in that, described video source input media comprises decoding chip and video source interface, and described video source interface is connected with FPGA device by decoding chip.
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| CN201510581980.3A CN105070249A (en) | 2015-09-14 | 2015-09-14 | Lockable LED display screen control method and control system thereof |
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| CN201510581980.3A CN105070249A (en) | 2015-09-14 | 2015-09-14 | Lockable LED display screen control method and control system thereof |
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| CN110415640A (en) * | 2019-07-22 | 2019-11-05 | 深圳市灰度软件有限公司 | A kind of LED timing uses control method, device, terminal and storage medium |
| CN111526403A (en) * | 2020-03-30 | 2020-08-11 | 龙芯中科技术有限公司 | Display device, method and electronic equipment |
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Application publication date: 20151118 |