CN207182836U - A kind of LED display of networking control - Google Patents
A kind of LED display of networking control Download PDFInfo
- Publication number
- CN207182836U CN207182836U CN201721236309.6U CN201721236309U CN207182836U CN 207182836 U CN207182836 U CN 207182836U CN 201721236309 U CN201721236309 U CN 201721236309U CN 207182836 U CN207182836 U CN 207182836U
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- circuit
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- input
- led display
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Abstract
The utility model discloses a kind of LED display of networking control, its drip irrigation device is to be connected with controller on the LED display, computer is connected with controller, thus, staff can will need the information that issue by computer transmission into controller, change information by controller and shown in LED display.Specifically, LED display can be used for the advertisement of indoor or outdoors to show, and other display purposes.
Description
Technical field
Display screen technology field is the utility model is related to, more particularly to a kind of LED display of networking control.
Background technology
Outdoor LED is as a kind of publicity or warning medium, and by more and more extensive application, but outdoor LED display screen exists
After a period of time, the outer surface of display screen is covered with dust all over, and has a strong impact on the display effect of LED display, needs fixed time cleaning,
Existing cleaning means are usually artificial cleaning, and worker is suspended on LED display, cleaned by rag, not only time-consuming to take
Power, potential safety hazard also be present.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is that providing a kind of LED of networking control shows
Screen, there is the characteristics of cleaning is convenient.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of LED display of networking control, including frame and the display screen body in frame, the side
The cleaning roller that can be slided along frame and be contradicted with display screen body surface is installed, the lower rotation of the frame is provided with frame
Bidirectional-screw, the drive block being connected with cleaning roll end is threaded with the Bidirectional-screw, the bottom of the frame is also set
It is equipped with the motor for driving Bidirectional-screw to rotate.
Pass through above-mentioned technical proposal, when being stained with dust on the surface of display screen body, staff, which only needs to start, to be driven
Motor, motor, which rotates, drives Bidirectional-screw to rotate, and Bidirectional-screw drives drive block to be moved back and forth along Bidirectional-screw,
Thus, the cleaning roller being connected with drive block can reciprocatingly slide along edge, reach the purpose for cleaning display screen body surface dust,
Simple in construction, cleaning effect of the reciprocating cleaning roller to display screen body surface is good, and climbs and carry out without staff
Cleaning.
Preferably, rain sensor is installed at the top of the frame, start-up and shut-down control is electrically connected with the motor
Circuit, the starting or stopping control circuit receive rain signal that rain sensor exported to control the keying of motor.
Pass through above-mentioned technical proposal, by the setting of rain sensor, motor can be in the control of starting or stopping control circuit
Lower start and stop, thus, are infiltrated by rainwater, on the one hand can improve the cleaning effect to display screen surface dust, and can be
After display screen surface is stained with rainwater, the rainwater of display screen body surface is absorbed by cleaning roller, avoids rain penetration from entering
The damage of display screen body is caused in display screen body.
Preferably, the starting or stopping control circuit includes：
Stopping detecting circuit is opened, it has input and output end, for detecting the rain signal in the input of its input
During positioned at rising edge or trailing edge, its output end exports corresponding detection signal；
Counting circuit, it has input, output end and reset terminal, and the input of the counting circuit is coupled to start and stop detection
The output end of circuit, and counted in response to detection signal and export corresponding meter from its output end after the full pre-determined number of meter
Number signal；
Time-delay reset circuit, it has triggering end and output end, and the triggering end of the time-delay reset circuit is coupled to counting electricity
The output end on road, and enter line delay in response to count signal, corresponding delayed reset signal is exported after preset time to counting
The reset terminal of circuit；
On-off circuit, it has input and output end, and its input is coupled to counting circuit with count pick up signal, and
Corresponding switching signal is exported from its output end；
Relay, its normally opened contact are serially connected on the current supply circuit of motor, and its coil is coupled to the defeated of on-off circuit
Go out end to receive switching signal, and the break-make of its normally opened contact is controlled in response to switching signal.
Pass through above-mentioned technical proposal, rain sensor detects rain after can export the rain signal of a rising edge to opening
In stopping detecting circuit, detection signal to counting circuit, the counting circuit of start and stop detection circuit output high level counts once, and works as rain
Water sensor detects that rain can export the rain signal of a trailing edge to opening in stopping detecting circuit after stopping, and it is defeated to open stopping detecting circuit
Detection signal to counting circuit, the counting circuit for going out high level counts once, and counting circuit meter exports high electricity after completely counting afterwards twice
Flat count signal to time-delay reset circuit and on-off circuit, on-off circuit is started by Control motor to drive
Cleaning roller carries out the cleaning of display screen body surface, and accordingly, time-delay reset circuit carries out timing, is reaching preset time
Export delayed reset signal to the reset terminal of counting circuit, counting circuit afterwards to reset, motor is stopped；
, can be after rain stop by the setting of above-mentioned starting or stopping control circuit, cleaning roller cleans the rainwater of display screen body surface,
On the one hand the cleaning effect to display screen body surface dust is improved using rainwater, on the other hand rain penetration can be avoided to enter
Enter to display screen body interior, and rainwater accumulation can be avoided to cause dust to condense on rainwater without drying in time, in rain
Water leaves larger dust aggregation stain after drying.
Preferably, the stopping detecting circuit that opens includes two block registers, the first not circuit, first and gate circuit, second
Not circuit, second and gate circuit and OR circuit；The input of first not circuit is coupled to rear stage register
Output end；The input of second not circuit is coupled to the output end of previous stage register；Described first and gate circuit
One of input be coupled to the output end of previous stage register, another input is coupled to the defeated of the first not circuit
Go out end；Described second is coupled to the output end of the second not circuit, another input with one of output end of gate circuit
It is coupled to the output end of rear stage register；Two inputs of the OR circuit are respectively coupled to first and gate circuit and the
Two and gate circuit.
Preferably, the counting circuit uses counter.
Preferably, the time-delay reset circuit is integrated using 555 timing chips.
Preferably, the on-off circuit includes：
3rd resistor, its one end are coupled to the output end of counting circuit；
4th resistance, its one end are coupled to the other end of 3rd resistor, its other end ground connection；
Second triode, its base stage are coupled on the tie point between 3rd resistor and the 4th resistance, its grounded emitter,
Its colelctor electrode connects voltage vcc after being coupled to the coil of relay；
Diode, its both ends are connected in parallel on the coil both ends of relay.
Preferably, the cleaning roller is coated with water-absorbing sponge.
Pass through above-mentioned technical proposal, water-absorbing sponge have high-hydroscopicity and cleaning capacity.
Preferably, the side of the frame is provided with the accommodating chamber for accommodating cleaning roller.
Pass through above-mentioned technical proposal, accommodating chamber are used to accommodate cleaning roller, can be hidden cleaning roller, avoid raining
When, rainwater bedews the water-absorbing sponge on cleaning roller.
In summary, the utility model having the beneficial effect that in contrast to prior art：
When being stained with dust on the surface of display screen body, staff only needs to start motor, and motor rotates
Bidirectional-screw is driven to rotate, Bidirectional-screw drives drive block to be moved back and forth along Bidirectional-screw, thus, is connected with drive block
Cleaning roller can be reciprocatingly slided along edge, reach clean display screen body surface dust purpose, it is simple in construction, move back and forth
Cleaning effect of the cleaning roller to display screen body surface it is good, and cleared up without staff's climbing.
Brief description of the drawings
Fig. 1 is the system block diagram of embodiment；
Fig. 2 is the structural representation of embodiment；
Fig. 3 is the circuit diagram of embodiment；
Fig. 4 is the circuit diagram of starting or stopping control circuit in embodiment；
Fig. 5 is the circuit diagram that stopping detecting circuit is opened in embodiment；
Fig. 6 is the circuit diagram of counting circuit in embodiment；
Fig. 7 is the circuit diagram of time-delay reset circuit in embodiment；
Fig. 8 is the circuit diagram of on-off circuit in embodiment.
Reference：1st, frame；2nd, display screen body；3rd, cleaning roller；4th, water-absorbing sponge；5th, Bidirectional-screw；6th, drive block；
7th, motor；8th, accommodating chamber；9th, rain sensor；10th, starting or stopping control circuit；110th, stopping detecting circuit is opened；120th, electricity is counted
Road；130th, time-delay reset circuit；140th, on-off circuit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in figure 1, a kind of LED display of networking control, controller is connected with the LED display, on controller
Computer is connected with, thus, the information that staff can issue needs, into controller, is turned by computer transmission by controller
Information of changing commanders is shown in LED display.Specifically, LED display can be used for the advertisement of indoor or outdoors to show, and other
Show purposes.
As shown in Fig. 2 the LED display includes frame 1 and the display screen body 2 in frame 1, frame 1 are adopted
With aluminum alloy frame, the cleaning roller 3 that can be slided along frame 1 and be contradicted with the surface of display screen body 2 is installed in frame 1, cleaned
Roller 3 is enclosed with water-absorbing sponge 4 on surface along its length.Specifically, it is provided with slide rail on the lower edges of frame 1（Figure
Not shown in）, the both ends of cleaning roller 3 are slidably mounted in the slide rail by sliding block to realize that cleaning roller 3 can be along frame 1 laterally
Slide.
In the present embodiment, the lower rotation of frame 1 is provided with Bidirectional-screw 5, length direction of the Bidirectional-screw 5 along frame 1
Set, drive block 6 is threaded with Bidirectional-screw 5, the slide rail of end through the lower edge of frame 1 of cleaning roller 3 is connected to drive
, it is necessary to which explanation, the bottom of frame 1 are additionally provided with the motor 7 for driving Bidirectional-screw 5 to rotate on motion block 6.Frame
1 side is provided with the accommodating chamber 8 for accommodating cleaning roller 3, and thus, cleaning roller 3 can be in motor 7 and Bidirectional-screw 5
Effect is entered in accommodating chamber 8, and accommodating chamber 8 can be protected to cleaning roller 3, hidden, and avoid cleaning roller 3 from being got wet by rainy weather
And made dirty by dusty wind weather.
With reference to shown in Fig. 2 and Fig. 3, the top of frame 1 is provided with rain sensor 9, and start and stop are electrically connected with motor 7
Control circuit 10, starting or stopping control circuit 10 receive the rain signal Vz that is exported of rain sensor 9 to control opening for motor 7
Close.Motor 7 is electrically connected on 220v alternating currents, and rain sensor 9 and starting or stopping control circuit 10 are connected by AC/DC converters
It is connected on 220v alternating currents.
As shown in figure 4, starting or stopping control circuit 10 includes opening stopping detecting circuit 110, counting circuit 120, time-delay reset circuit
130th, on-off circuit 140 and relay K1.
Opening stopping detecting circuit 110 has input and output end, for detecting the rain signal in the input of its input
During positioned at rising edge or trailing edge, its output end exports corresponding detection signal Vq；
Counting circuit 120 has input in, output end out and reset terminal rst, the input in of the counting circuit 120
Be coupled to the output end for opening stopping detecting circuit 110, and counted in response to detection signal Vq and after the full pre-determined number of meter from
Its output end out exports corresponding count signal Vj；
Time-delay reset circuit 130 has triggering end and output end, and the triggering end of the time-delay reset circuit 130 is coupled to counting
The output end out of circuit 120, and enter line delay in response to count signal Vj, corresponding time-delay reset is exported after preset time
Signal Vy to counting circuit 120 reset terminal rst；
On-off circuit 140 has input and output end, and its input is coupled to counting circuit 120 with count pick up signal
Vj, and export corresponding switching signal from its output end；
Relay K1 normally opened contact K1-1 is serially connected on the current supply circuit of motor 7, and its coil is coupled to switch electricity
The output end on road 140 controls in response to switching signal its normally opened contact K1-1 break-make to receive switching signal.
Specifically, as shown in figure 5, opening stopping detecting circuit 110 includes two block registers（U1、U2）, the first not circuit Y1,
First and gate circuit F1, the second not circuit Y2, second and gate circuit F2 and OR circuit H1.
Two block registers（U1、U2）Clock end CP and reset terminal CL give corresponding clock signal clk by external chip
With reset signal rst, the present embodiment no longer specifically deploys explanation.
First not circuit F1 input is coupled to rear stage register U2 output end Q；Second not circuit F2's
Input is coupled to previous stage register U1 output end Q；First be coupled to gate circuit Y1 one of input it is previous
Level register U1 output end Q, another input are coupled to the first not circuit F1 output end；Second with gate circuit Y2's
One of output end is coupled to the second not circuit F2 output end, and another input is coupled to rear stage register U2's
Output end Q；OR circuit H1 two inputs are respectively coupled to first and gate circuit Y1 and second and gate circuit Y2.
Rain sensor 9 detects rainy, i.e., is stained with rainwater on rain sensor 9, rain sensor 9 is switched on, rainwater
The rain signal Vz that sensor 9 exports is high level by original low transition；After rainwater on rain sensor 9 is dried,
Rain sensor 9 disconnects, and rain signal Vz is low level by original high level saltus step, therefore a rising edge and decline be present
Edge.
Wherein, to latch incoming level when signal Vz rising edges arrive, register U1 is latched and stayed register U2
One signal Vz saltus step（Trailing edge）Incoming level during arrival, if the two registers（U1、U2）The level latched
Signal is different, and edge, i.e. rising edge or trailing edge are detected with regard to explanation.
Therefore, when rain sensor 9 detects rainy, when rain signal Vz has rising edge, first is defeated with gate circuit Y1
Go out the rising edge detection signal Vs of high level, conversely, after rain sensor 9 detects that rain stops, rain signal Vz, which exists, to be declined
Along when, second with gate circuit Y2 output high level trailing edge detection signal Vx；Rising edge detection signal Vs and trailing edge detection
After signal Vx is input to OR circuit H1, OR circuit H1 can export the detection signal Vq of high level.
As shown in fig. 6, counting circuit 120 uses counter.The input in of counting circuit 120 is coupled to start and stop detection electricity
Output end (the i.e. OR circuit H1 output end on road 110）To receive detection signal Vq.Counting circuit 120 often receives once high
The detection signal Vq of level, then carry out a number, and the present embodiment exports high electricity preferably when counting completely twice from its output end out
Flat count signal Vj.
As shown in fig. 7, time-delay reset circuit 130 is integrated using 555 timing chips.
Input to NPN type triode Q1 base stage, turn it in count signal Vj, and then 555 timing chips are powered.It is logical
When electric, voltage vcc charges to electric capacity C1, forms charging current, after the electric current flows through resistance R2, electricity is formed in resistance R2 upper end
Pressure, the voltage are higher than the triggering level of the pin of 555 timing chip 2, and therefore, 555 timing chips do not trigger.When electric capacity C1 is fully charged
When, charging current disappears so that the loss of voltage of resistance R2 upper ends, so as to trigger 2 pin of 555 timing chips, 555 timing chips
3 pin output high level time delayed signal Vy.Time delayed signal Vy is delivered to the reset terminal rst of counting circuit 120, so as to count
Circuit 120 resets.
As shown in figure 8, on-off circuit 140 includes：3rd resistor R3, its one end are coupled to the output end of counting circuit 120
out；4th resistance R4, its one end are coupled to the 3rd resistor R3 other end, its other end ground connection；Second triode Q2, its base
Pole is coupled on the tie point between 3rd resistor R3 and the 4th resistance R4, and its grounded emitter, its colelctor electrode is coupled to relay
Voltage vcc is connected after device K1 coil；Diode D1, its both ends are connected to relay K1 coil both ends.
When counting completely twice（Represent that rain sensor 9 detects that rainy and rain stops）, NPN type triode Q2 base stage connects
Receive high level, triode Q2 conductings, control relay K1 coil obtains electric, closes its normally opened contact K1-1 so that driving electricity
Machine 7 carries out opening, and motor 7 drives cleaning roller 3 to clean display screen body 2；After preset time, delay is multiple
Position circuit 130 promotes counting circuit 120 to reset, and NPN type triode Q2 base stage receives low level count signal Vj, triode
Q2 ends, control relay K1 coil losing electricity, and normally opened contact K1-1 disconnects so that motor 7 disconnects and stops cleaning roller 3
Operation, cleaning roller 3 are completed a cleaning works and entered in accommodating chamber 8.
Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model
Enclose, the scope of protection of the utility model is determined by appended claim.
Claims (9)
1. a kind of LED display of networking control, including frame (1) and the display screen body (2) in frame (1),
Characterized in that, the cleaning that can be slided along frame (1) and be contradicted with display screen body (2) surface is installed in the frame (1)
Roller (3), the lower rotation of the frame (1) are provided with Bidirectional-screw (5), be threaded with the Bidirectional-screw (5) with clearly
The connected drive block (6) in roller (3) end is swept, the bottom of the frame (1) is additionally provided with what is rotated for driving Bidirectional-screw (5)
Motor (7).
A kind of 2. LED display of networking control according to claim 1, it is characterised in that the top of the frame (1)
Rain sensor (9) is installed, starting or stopping control circuit (10), the start-up and shut-down control electricity are electrically connected with the motor (7)
Road (10) receives rain sensor (9) rain signal that is exported to control the keying of motor (7).
A kind of 3. LED display of networking control according to claim 2, it is characterised in that the starting or stopping control circuit
(10) include：
Stopping detecting circuit (110) is opened, it has input and output end, for detecting the rain signal in the input of its input
During positioned at rising edge or trailing edge, its output end exports corresponding detection signal；
Counting circuit (120), it has input, output end and reset terminal, and the input of the counting circuit (120), which is coupled to, to be opened
The output end of stopping detecting circuit (110), and counted and after the full pre-determined number of meter from its output end in response to detection signal
Export corresponding count signal；
Time-delay reset circuit (130), it has triggering end and output end, and the triggering end of the time-delay reset circuit (130) is coupled to
The output end of counting circuit (120), and enter line delay in response to count signal, corresponding time-delay reset is exported after preset time
Signal to counting circuit (120) reset terminal；
On-off circuit (140), it has input and output end, and its input is coupled to counting circuit (120) with count pick up
Signal, and export corresponding switching signal from its output end；
Relay, its normally opened contact are serially connected on the current supply circuit of motor (7), and its coil is coupled to on-off circuit (140)
Output end to receive switching signal, and control in response to switching signal the break-make of its normally opened contact.
4. the LED display of a kind of networking control according to claim 3, it is characterised in that described to open stopping detecting circuit
(110) include two block registers, the first not circuit, first with gate circuit, the second not circuit, second with gate circuit and or
Gate circuit；The input of first not circuit is coupled to the output end of rear stage register；Second not circuit
Input is coupled to the output end of previous stage register；Described first is coupled to previous stage with one of input of gate circuit
The output end of register, another input are coupled to the output end of the first not circuit；Described second with gate circuit wherein
One output end is coupled to the output end of the second not circuit, and another input is coupled to the output end of rear stage register；
Two inputs of the OR circuit are respectively coupled to first and gate circuit and second and gate circuit.
A kind of 5. LED display of networking control according to claim 3, it is characterised in that the counting circuit (120)
Using counter.
A kind of 6. LED display of networking control according to claim 3, it is characterised in that the time-delay reset circuit
(130) integrated using 555 timing chips.
A kind of 7. LED display of networking control according to claim 3, it is characterised in that the on-off circuit (140)
Including：
3rd resistor, its one end are coupled to the output end of counting circuit (120)；
4th resistance, its one end are coupled to the other end of 3rd resistor, its other end ground connection；
Second triode, its base stage are coupled on the tie point between 3rd resistor and the 4th resistance, its grounded emitter, and it collects
Electrode connects voltage vcc after being coupled to the coil of relay；
Diode, its both ends are connected in parallel on the coil both ends of relay.
A kind of 8. LED display of networking control according to claim 1, it is characterised in that the table of the cleaning roller (3)
Bread is wrapped with water-absorbing sponge (4).
A kind of 9. LED display of networking control according to claim 1, it is characterised in that the side of the frame (1)
It is provided with the accommodating chamber (8) for accommodating cleaning roller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236309.6U CN207182836U (en) | 2017-09-25 | 2017-09-25 | A kind of LED display of networking control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236309.6U CN207182836U (en) | 2017-09-25 | 2017-09-25 | A kind of LED display of networking control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207182836U true CN207182836U (en) | 2018-04-03 |
Family
ID=61748392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721236309.6U Expired - Fee Related CN207182836U (en) | 2017-09-25 | 2017-09-25 | A kind of LED display of networking control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207182836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109299546A (en) * | 2018-09-28 | 2019-02-01 | 浙江大境筑科技发展有限公司 | Curtain wall engineering amount statistical method based on BIM |
| CN109501621A (en) * | 2018-11-20 | 2019-03-22 | 安徽天鹏电子科技有限公司 | A kind of outdoor charging pile with environment induction function |
-
2017
- 2017-09-25 CN CN201721236309.6U patent/CN207182836U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109299546A (en) * | 2018-09-28 | 2019-02-01 | 浙江大境筑科技发展有限公司 | Curtain wall engineering amount statistical method based on BIM |
| CN109501621A (en) * | 2018-11-20 | 2019-03-22 | 安徽天鹏电子科技有限公司 | A kind of outdoor charging pile with environment induction function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20200925 |