CN204991100U - But LED display screen control system of locking - Google Patents
But LED display screen control system of locking Download PDFInfo
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- CN204991100U CN204991100U CN201520709027.8U CN201520709027U CN204991100U CN 204991100 U CN204991100 U CN 204991100U CN 201520709027 U CN201520709027 U CN 201520709027U CN 204991100 U CN204991100 U CN 204991100U
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Abstract
The utility model relates to a but LED display screen control system of locking, including intelligent terminal, communication device, treater, FPGA device, video source input device, LED scanner and the LED display screen that is used for supplying user's input time and generates the key, intelligent terminal passes through communication device and is connected with the treater, treater, video source input device and LED scanner all are connected with the FPGA device, the LED display screen is connected with the LED scanner. The utility model discloses can realize the locking function of LED display screen, but the accurate control live time prevents that other people from stealing to use.
Description
Technical field
The utility model relates to LED display control technology, and particularly relating to can its control system of LED display of locking.
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 have corresponding intelligent terminal corresponding with it, does not all possess password latch functions, one-sided situation of stealing with LED giant-screen can not be avoided.
Utility model content
For the problems referred to above, the purpose of this utility model be to provide a kind of can the LED display control system of locking, it can realize the latch functions of LED display, precisely can control service time, prevents other people from stealing and uses.
For achieving the above object, the utility model adopts following technical scheme:
Can the LED display control system of locking, comprise for for user's input time and generate the intelligent terminal of key, communication device, processor, FPGA device, video source input media, 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.
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 display and LED scanner 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.
Preferred further, decoding chip comprises digital decoding chip and analog codec chip, and described digital decoding chip is all connected with FPGA device with analog codec chip.
Preferred further, described video source interface comprise in DVI interface, HDMI, USB interface and S-VIDEO interface one or more, described DVI interface is all connected with digital decoding chip with HDMI, and described USB interface is all connected with analog codec chip with S-VIDEO interface.
Compared to existing technology, the beneficial effects of the utility model are:
The utility model can produce key by intelligent terminal, can prevent LED display from being stolen use by unrelated person, and user can pre-set voluntarily and plays closing time, can reach the object precisely controlling service time.
Accompanying drawing explanation
Fig. 1 be of the present utility model can the function structure chart of LED display controlling party system of locking.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
See Fig. 1, the present embodiment provides can the LED display control system of locking, comprises for for the intelligent terminal of user's input time and generating cipher, communication device, processor, FPGA device, video source input media, LED scanner and LED display; Described intelligent terminal is connected with processor by communication device, and processor, video source input media are all connected with FPGA device with LED scanner, and LED display is connected with LED scanner.
Its principle of work is: intelligent terminal can but be not limited to PC, mobile phone, panel computer.Intelligent terminal selects input time and input panel coding for user, and this time, display screen coding formed display screen coded signal in order to play closing time, this broadcasting formation time closing time signal.Display screen is encoded to the sequence number of LED display or perhaps No. ID, and each LED display has just possessed respective sequence number when dispatching from the factory, for other LED display as difference.The principle that intelligent terminal generates key is known technology, namely carries out the process such as coding closing time to this display screen coding and broadcasting.Communication device is the communication facilitiess such as WIFI, and key is sent to processor by the mode such as cable network, WIFI, UART.Processor receives from the key signal of communication device, according to described time signal obtain playing be greater than current time closing time time, send a control signal to FPGA device.Processor carries out decoding decryption processing according to key signal in conjunction with the display screen coding self stored and obtains broadcasting closing time and are contrasted broadcasting closing time and current time being all prior aries.FPGA device receives control signal and then the original image signal from video source input media is sent to image processor; If above-mentioned two conditions have any one not meet, namely display screen coding not corresponding and/or play closing time be less than current time, then send pick-off signal to FPGA device, FPGA device just can not send original image signal, is 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 FPGA device, 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.FPGA device controls LED display according to original image signal by LED scanner and plays, in fact, FPGA device not only sends original image signal according to control signal, and process can be carried out to original image signal and obtain 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.Image processor can be known by prior art the treatment technology of video original signal.
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 the process such as decoding to this key, 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, thus ensuing broadcasting work can not be carried out.
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.
The present embodiment more meets the user demand of current LED giant-screen, precisely can control service time, when multi-party cooperative management and monitoring LED giant-screen uses, can avoid one-sided situation of stealing with LED giant-screen.
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 utility model claim.
Claims (6)
1. can the LED display control system of locking, it is characterized in that, comprise for for user's input time and generate the intelligent terminal of key, communication device, processor, FPGA device, video source input media, 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.
2. as claimed in claim 1 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 display and LED scanner connect one to one.
3. as claimed in claim 1 can the LED display control system of locking, it is characterized in that, described processor is arm processor or MIPS processor.
4. as claimed in claim 1 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.
5. as claimed in claim 4 can the LED display control system of locking, it is characterized in that, decoding chip comprises digital decoding chip and analog codec chip, and described digital decoding chip is all connected with FPGA device with analog codec chip.
6. as claimed in claim 5 can the LED display control system 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, described DVI interface is all connected with digital decoding chip with HDMI, and described USB interface is all connected with analog codec chip with S-VIDEO interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520709027.8U CN204991100U (en) | 2015-09-14 | 2015-09-14 | But LED display screen control system of locking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520709027.8U CN204991100U (en) | 2015-09-14 | 2015-09-14 | But LED display screen control system of locking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204991100U true CN204991100U (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520709027.8U Active CN204991100U (en) | 2015-09-14 | 2015-09-14 | But LED display screen control system of locking |
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| Country | Link |
|---|---|
| CN (1) | CN204991100U (en) |
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2015
- 2015-09-14 CN CN201520709027.8U patent/CN204991100U/en active Active
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| GR01 | Patent grant |