CN205487276U - LED information display screen system - Google Patents
LED information display screen system Download PDFInfo
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- CN205487276U CN205487276U CN201620234140.XU CN201620234140U CN205487276U CN 205487276 U CN205487276 U CN 205487276U CN 201620234140 U CN201620234140 U CN 201620234140U CN 205487276 U CN205487276 U CN 205487276U
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Abstract
The utility model discloses a LED information display screen system, including LED information display screen device, input keyboard, power pack and interface circuit, the LED information display screen device includes display controller, display driver and LED screen, display controller's first output is connected with display driver's input electricity, and display driver's output is connected with the input of LED screen electricity, input keyboard's output is connected with display controller's first input end electricity, the output of power pack is connected with display controller's the power input end and the power input end electricity of LED screen respectively for provide operating voltage for display controller and LED screen, interface circuit's input is connected with display controller's second output electricity for export after changing the data signal of display controller output into the switching value signal. The utility model discloses automatic control can be realized to the demonstration starting switch of showpiece, good heat dissipation, the maintenance of being convenient for.
Description
Technical field
This utility model relates to the LED information display screen device used in the venues.
Background technology
In museum, the place such as science popularization venue and odeum many large-scale LED information display screen devices are usually installed; in order to provide the information about showpiece to exhibition spectators; as demonstrated the contents such as play arrangement, operating instruction, showpiece review; and the demonstration of showpiece also needs to be opened by field personnel on time; do not only result in human cost higher; big in the volume of the flow of passengers, the most usually there will be the phenomenon that service is not in place when being short of hands, affect service quality.
Additionally, LED screen and power circuit are arranged in same housing by existing LED information display screen device, cause heat dispersion the best.When power circuit breaks down, maintainer needs by instruments such as ladders close to hanging pinnacled LED information display screen device, brings inconvenience to maintenance failure.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of have showpiece can be demonstrated that activate switch realizes automatically controlling, thermal diffusivity is good, be easy to the LED information display screen system of maintenance.
Another technical problem to be solved in the utility model is to provide a kind of LED information display screen system that can send information when entering predetermined prohibited area when human body.
For solving above-mentioned technical problem, this utility model adopts the technical scheme that:
A kind of LED information display screen system, including LED information display screen device, input keyboard, power pack and interface circuit；LED information display screen device includes displaying screen controller, display driver and LED screen；First outfan of displaying screen controller electrically connects with the input of display driver, and the outfan of display driver electrically connects with the input of LED screen；The input of input keyboard electrically connects with the first input end of displaying screen controller；The outfan of power pack electrically connects with the power input of displaying screen controller and the power input of LED screen respectively, for providing running voltage for displaying screen controller and LED screen；The input of interface circuit electrically connects with the second outfan of displaying screen controller, and interface circuit exports after being on-off model by the digital signal transition that displaying screen controller exports.
Preferably, described a kind of LED information display screen system also includes for detecting the detection sensor whether target object enters in presumptive area, and the signal output part of detection sensor electrically connects with the second input of displaying screen controller.
After using technique scheme, this utility model at least has the advantage that
LED information display screen system the most of the present utility model can not only display reminding information, and can be to the on-off circuit input switch amount signal putting on display showpiece, thus realize showpiece demonstration activate switch is automatically controlled, reduce on-the-spot labor management cost, to put in service by limited staff, optimize service quality；
2. compared with existing LED information display screen device, the hardware input cost that LED information display screen system of the present utility model increases mainly is only that interface circuit and input keyboard, and therefore holistic cost is the highest, it is easy to implement；
LED information display screen system the most of the present utility model have employed the split-type structural that power supply is external, by external for the existing power circuit being arranged in same housing with LED screen in power pack, thus improve the radiating effect of LED information display screen device, and make the external type of screen the most frivolous attractive in appearance；And power pack is placed on lower, keeps in repair and change consumable accessory and need not work high above the ground, facilitate the operation of maintainer；
4. also include for detecting the detection sensor whether target object enters in presumptive area according to the LED information display screen system of this utility model preferred embodiment, when human body enters presumptive area, detection sensor can send detection signal to displaying screen controller, after displaying screen controller receives this detection signal, information can be exported to LED screen, visitor is reminded not enter this presumptive area such that it is able to reduce the potential safety hazard during putting on display.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the LED information display screen system according to this utility model one embodiment.
Fig. 2 is the theory diagram of the interface circuit according to this utility model one embodiment.
Detailed description of the invention
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Refer to Fig. 1.LED information display screen system according to this utility model one embodiment includes LED information display screen device 1, input keyboard 2, power pack 3 and interface circuit 4.
LED information display screen device 1 includes displaying screen controller 11, display driver 12 and LED screen 13.First outfan of displaying screen controller 11 electrically connects with the input of display driver 12, and the outfan of display driver 12 electrically connects with the input of LED screen 13.In this example it is shown that screen controller 11 is single-chip microcomputer；LED screen 13 is dot matrix screen.
The outfan of input keyboard 2 electrically connects with the first input end of displaying screen controller 11.
The outfan of power pack 3 electrically connects with the power input of displaying screen controller 11 and the power input of LED screen 13 respectively, for providing running voltage for displaying screen controller 11 and LED screen 13.In the present embodiment, arrived external for existing and that LED screen is arranged in same housing power circuit in power pack 3, thus improved the radiating effect of LED information display screen device, and facilitated the maintenance of maintainer.
The input of interface circuit 4 electrically connects with the second outfan of displaying screen controller 11, and interface circuit 4 exports after the digital signal transition exported by displaying screen controller 11 is on-off model.Fig. 2 shows the theory diagram of the interface circuit according to this utility model one embodiment.Interface circuit 4 includes D/A converting circuit 41 and isolating amplifier circuit 42.The input of D/A converting circuit 41 electrically connects with the second outfan of displaying screen controller 11, is analogue signal for the digital signal transition exported by displaying screen controller 11；The input of isolating amplifier circuit 42 electrically connects with the outfan of D/A converting circuit 41, for the analogue signal that D/A converting circuit 41 exports is converted to on-off model.In the present embodiment, the model of D/A converting circuit can use DAC7573, DAC0832 etc., isolating amplifier circuit 42 to use optocoupler, and model is TLP321-2.
The interface circuit 4 of the LED information display screen system according to this utility model one embodiment is connectable to the on-off circuit of showpiece, to realize automatically controlling showpiece demonstration activate switch.Control mode mainly includes showpiece demonstration switch clocked flip or by realizing the control to showpiece demonstration activate switch to input keyboard 2 input instruction.Showpiece demonstration switch clocked flip is the timing function utilizing displaying screen controller 11, the pre-set triggered time, to the on-off circuit output switch amount signal of showpiece when the predetermined triggered time arrives, the demonstration activate switch controlling showpiece is opened, thus realizes the demonstration of showpiece.Manual keyboard input then can be according to the time of user's selection to the on-off circuit output switch amount signal of showpiece.
In preferred embodiment of the present utility model, LED information display screen system also includes for detecting the detection sensor 5 whether target object enters in presumptive area, and the signal output part of detection sensor 5 electrically connects with the second input of displaying screen controller 11.Presumptive area is typically region out-of-bounds in practical matter, more such as there is the region of potential safety hazard, and detection sensor 5 is typically mounted at the boundary position of this presumptive area, and detection sensor 5 such as can use light curtain.When the object of human body or generation potential safety hazard enters light curtain region, light curtain can send, to displaying screen controller 11, the detection signal that light is occluded, after displaying screen controller 11 receives this detection signal, export information to LED screen 13, remind visitor not enter this presumptive area.Further, LED information display screen system also includes that speaker 6, the signal input part of speaker 6 electrically connect with the 3rd outfan of displaying screen controller 11.So, when human body enters light curtain region, displaying screen controller 11 can also control speaker 6 and send information of voice prompt, to cause the attention of visitor further.
Above description is further illustrating of combining that this utility model done by detailed description of the invention and accompanying drawing.But; this utility model obviously can be implemented with multiple this other method described that is different from; those skilled in the art can carry out promoting, deducing according to actually used situation in the case of this utility model content; therefore, the content of above-mentioned specific embodiment should not limit the protection domain that this utility model determines.
Claims (8)
1. a LED information display screen system, it is characterised in that include LED information display screen device, input keyboard, power pack and interface circuit；
Described LED information display screen device includes displaying screen controller, display driver and LED screen；First outfan of described displaying screen controller electrically connects with the input of described display driver, and the outfan of described display driver electrically connects with the input of described LED screen；
The outfan of described input keyboard electrically connects with the first input end of described displaying screen controller；
The outfan of described power pack power input with the power input of described displaying screen controller and described LED screen respectively electrically connects, for providing running voltage for described displaying screen controller and LED screen；
The input of described interface circuit electrically connects with the second outfan of described displaying screen controller, and described interface circuit exports after the digital signal transition exported by described displaying screen controller is on-off model.
A kind of LED information display screen system the most according to claim 1, it is characterised in that described interface circuit includes:
D/A converting circuit, the input of described D/A converting circuit electrically connects with the second outfan of described displaying screen controller, is analogue signal for the digital signal transition exported by described displaying screen controller；
Isolating amplifier circuit, the input of described isolating amplifier circuit electrically connects with the outfan of described D/A converting circuit, for the analogue signal that described D/A converting circuit exports is converted to on-off model.
A kind of LED information display screen system the most according to claim 2, it is characterised in that described isolating amplifier circuit is optocoupler.
A kind of LED information display screen system the most according to claim 1, it is characterised in that described LED screen is dot matrix screen.
A kind of LED information display screen system the most according to claim 1, it is characterised in that described displaying screen controller is single-chip microcomputer.
A kind of LED information display screen system the most according to claim 1, it is characterized in that, described a kind of LED information display screen system also includes that the signal output part of described detection sensor electrically connects with the second input of described displaying screen controller for detecting the detection sensor whether target object enters in presumptive area.
A kind of LED information display screen system the most according to claim 6, it is characterised in that described detection sensor is light curtain.
A kind of LED information display screen system the most according to claim 6, it is characterised in that described a kind of LED information display screen system also includes that speaker, the signal input part of described speaker electrically connect with the 3rd outfan of displaying screen controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620234140.XU CN205487276U (en) | 2016-03-24 | 2016-03-24 | LED information display screen system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620234140.XU CN205487276U (en) | 2016-03-24 | 2016-03-24 | LED information display screen system |
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| CN205487276U true CN205487276U (en) | 2016-08-17 |
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| CN201620234140.XU Active CN205487276U (en) | 2016-03-24 | 2016-03-24 | LED information display screen system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898294A (en) * | 2017-03-28 | 2017-06-27 | 广州兴图计算机有限公司 | A kind of LED display screen system based on DSP |
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2016
- 2016-03-24 CN CN201620234140.XU patent/CN205487276U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898294A (en) * | 2017-03-28 | 2017-06-27 | 广州兴图计算机有限公司 | A kind of LED display screen system based on DSP |
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