CN210579360U - Intelligent dimming device for outdoor indicator lamp - Google Patents
Intelligent dimming device for outdoor indicator lamp Download PDFInfo
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- CN210579360U CN210579360U CN201921505255.8U CN201921505255U CN210579360U CN 210579360 U CN210579360 U CN 210579360U CN 201921505255 U CN201921505255 U CN 201921505255U CN 210579360 U CN210579360 U CN 210579360U
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Abstract
The utility model discloses an intelligent dimming device of an outdoor indicating lamp, which comprises a microcontroller and a touch screen which are electrically connected, wherein the input end of the microcontroller is connected with an ambient light sensor and the touch screen, and the output end of the microcontroller is electrically connected with an indicating lamp dimming circuit through a photoelectric coupler; the indicator light dimming circuit is a common anode driving circuit or a common cathode driving circuit. The utility model provides an outdoor pilot lamp intelligent light adjusting device, when unmanned on operation, the pilot lamp can be according to environment luminous intensity automatically regulated luminance, realizes energy saving and emission reduction, reduces light pollution; when someone operates, the indicating lamp automatically reduces the brightness, and the influence on operators is avoided.
Description
Technical Field
The invention relates to a dimming device, in particular to an intelligent dimming device for an outdoor indicator lamp.
Background
On outdoor equipment, the status of the equipment needs to be indicated by indicator lamps of various colors, and in order to ensure that the equipment is visible in a bright light environment in the daytime, the indicator lamps are often high-brightness LED indicator lamps. When the lamp is in cloudy days or at night, the indicator lamp still keeps conventional brightness, light pollution is caused to the surrounding environment, the life of residents is influenced, and meanwhile, energy conservation and emission reduction are not facilitated. In addition, for some equipment with a human-computer interface, when a person approaches to operate, strong light of the indicator light can also cause stimulation to human eyes, and discomfort is brought to an operator.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent dimming device for an outdoor indicator lamp, which can automatically adjust the brightness of the indicator lamp, realize energy conservation and emission reduction and reduce light pollution while meeting high-brightness display.
The invention adopts the technical scheme that an intelligent dimming device for an outdoor indicator lamp is provided to solve the technical problems, and comprises a microcontroller and a touch screen which are electrically connected, wherein the input end of the microcontroller is connected with an ambient light sensor and the touch screen, and the output end of the microcontroller is electrically connected with an indicator lamp dimming circuit through a photoelectric coupler.
In the above intelligent dimming device for outdoor indicator lamps, the indicator lamp dimming circuit is a common anode driving circuit or a common cathode driving circuit.
The above-mentioned intelligent dimming device for outdoor indicator lamps, wherein the common anode driving circuit includes a PMOS transistor for controlling the LED driving power switch, a gate of the PMOS transistor is connected to the positive electrode of the power supply through a resistor R1, and is connected to anodes of three diodes D1, D2, and D3 through a resistor R2, and cathodes of the diodes D1, D2, D3 and the LED indicator lamps are respectively connected to driving signals of three LEDs of green, red, and yellow; the source electrode of the PMOS tube is connected to the positive electrode of a power supply, and the drain electrode of the PMOS tube is connected to the anode of the LED indicator lamp and used for driving the LED indicator lamp; and an output collector of the photoelectric coupler is connected to a source electrode of the PMOS tube, and an output emitter of the photoelectric coupler is connected to a grid electrode of the PMOS tube.
The above-mentioned intelligent dimming device for outdoor indicator lamps, wherein the common cathode driving circuit includes an NMOS transistor for controlling the LED driving power switch, a gate of the NMOS transistor is connected to a negative electrode of a power supply through a resistor R1, and is connected to cathodes of three diodes D1, D2, and D3 through a resistor R2, and anodes of the diodes D1, D2, D3 and the LED indicator lamps are respectively connected to driving signals of three LEDs of green, red, and yellow; the source electrode of the NMOS tube is connected to the negative electrode of the power supply, and the drain electrode of the NMOS tube is connected to the anode of the LED indicator lamp and used for driving the LED indicator lamp; and an output collector of the photoelectric coupler is connected to the grid electrode of the NMOS tube, and an output emitter of the photoelectric coupler is connected to the source electrode of the NMOS tube.
Compared with the prior art, the invention has the following beneficial effects: according to the intelligent dimming device for the outdoor indicator lamp, when the intelligent dimming device is operated by no person, the indicator lamp can automatically adjust the brightness of the emitted light according to the intensity of the ambient light, so that energy conservation and emission reduction are realized, and light pollution is reduced; when someone operates, the indicating lamp automatically reduces the brightness, and the influence on operators is avoided.
Drawings
FIG. 1 is a block diagram of an intelligent dimming device for an outdoor indicator light according to the present invention;
FIG. 2 is a circuit diagram of common anode driving dimming circuit in the intelligent dimming device of outdoor indicating lamp according to the present invention;
fig. 3 is a common cathode driving dimming circuit diagram in the intelligent dimming device of the outdoor indicator light according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
Fig. 1 is a circuit block diagram of an intelligent dimming device of an outdoor indicator light according to the present invention.
Referring to fig. 1, the intelligent dimming device for the outdoor indicator lamp provided by the invention comprises a microcontroller and a touch screen, wherein the microcontroller is electrically connected with the touch screen, an input end of the microcontroller is connected with an ambient light sensor and the touch screen, and an output end of the microcontroller is electrically connected with an indicator lamp dimming circuit through a photoelectric coupler.
The invention can automatically adjust the brightness according to the ambient light and automatically lower the brightness of the indicating lamp according to the operation signal of the user, and mainly comprises an ambient light detection circuit, a touch signal detection circuit and an indicating lamp dimming circuit, and the microcontroller can select a common singlechip.
(1) Ambient light detection circuit
The ambient light detection circuit mainly comprises an ambient light sensor and a single chip microcomputer, and the single chip microcomputer converts ambient light brightness into digital quantity by sampling a voltage output signal of the ambient light sensor.
(2) Touch signal detection circuit
The touch signal detection circuit mainly comprises a resistance touch screen or a capacitance touch screen and a singlechip, and when the touch screen detects a touch signal, the singlechip can receive the touch signal and judge whether a person operates.
(3) Light modulation circuit of indicator light
The indicating lamp dimming circuit mainly comprises a single chip microcomputer, a photoelectric coupler and an MOS (metal oxide semiconductor) tube control circuit. The singlechip controls the on-off of the MOS tube through outputting a PWM signal and a photoelectric coupler, thereby realizing the dimming control of the indicator light. When the singlechip detects that someone operates, a set PWM signal is output, so that the indicator light is displayed at lower brightness; when the singlechip detects unmanned operation, the singlechip controls and outputs a corresponding PWM signal through the brightness value of the ambient light, and the function of automatically adjusting the brightness of the indicator lamp according to the ambient light is realized. In the system, the photoelectric coupler realizes the control of the low-voltage signal of the singlechip on the driving voltage (higher voltage, generally 12V) of the indicator lamp, and can also isolate the indicator lamp driving power supply from the singlechip system to avoid the singlechip from being interfered by the indicator lamp driving circuit.
The indicating lamp dimming circuit used in the intelligent dimming device of the outdoor indicating lamp can be a common anode driving circuit or a common cathode driving circuit.
Fig. 2 is a common anode driven automatic dimming circuit, in fig. 2, M1 is a PMOS transistor for controlling the switching of an LED driving power supply (in the figure, +12V), a gate (G) of M1 is connected to the positive electrode of the power supply through R1, and is connected to the anodes of three diodes D1, D2 and D3 through R2, and the cathodes of diodes D1, D2 and D3 and an LED indicator are respectively connected to driving signals of three LEDs of green, red and yellow; the source (S) of M1 is connected to the positive pole of the power supply, and the drain (D) of M1 is connected to the anode of the LED indicator light for driving the LED indicator light. In the figure, U1 is a photocoupler, the output collector (C) of U1 is connected to the source (S) of M1, and the output emitter (E) of U1 is connected to the gate (G) of M1.
When the singlechip does not apply a switching signal to the optocoupler U1, the ends C and E of the U1 are not conducted, at the moment, a power supply forms a loop through the R1 diode, the R2 diode, the D1 diode, the D2 diode and the D3 diode to a driving signal of the LED lamp, and when at least one path of the driving signal is low voltage, voltage drops are generated at two ends of the R1 diode, so that the PMOS tube M1 is conducted.
When the singlechip enables the optocoupler U1 to be switched on, the ends C and E of the optocoupler bypass the R1, the voltage at the two ends of the R1 is 0, and the PMOS tube M1 is cut off.
The singlechip applies PWM signals to the optocoupler, so that on-off control of the LED lamp is realized.
The common cathode control circuit and the common anode control circuit are different in that the MOS transistor used is an NMOS, and the control principle is the same as that of the common anode circuit, as shown in fig. 3. The common cathode driving circuit comprises an NMOS tube used for controlling the LED driving power switch, the grid (G) of the NMOS tube is connected to the negative electrode of a power supply through a resistor R1, and is connected to the cathodes of three diodes D1, D2 and D3 through a resistor R2, and the anodes of the diodes D1, D2, D3 and the LED indicator lamp are respectively connected with driving signals of three LEDs of green, red and yellow; the source electrode (S) of the NMOS tube is connected to the negative electrode of a power supply, and the drain electrode (D) of the NMOS tube is connected to the anode of the LED indicator lamp and used for driving the LED indicator lamp; an output collector (C) of the photoelectric coupler is connected to a grid electrode (G) of the NMOS tube, and an output emitter (E) of the photoelectric coupler is connected to a source electrode (S) of the NMOS tube.
According to the intelligent dimming device for the outdoor indicator lamp, when the microcontroller detects that the touch screen has the operation signal, the preset PWM signal is output, for example, the duty ratio of the preset PWM signal is 20%, so that the indicator lamp is displayed at a lower first brightness; when the microcontroller detects that the touch screen has no operation signal, the signal of the ambient light sensor is acquired and output, and the corresponding PWM signal is controlled and output through the ambient light brightness value, so that the indicator lamp displays with higher second brightness, and the output PWM signal corresponding to the second brightness and the ambient light brightness value are in positive correlation.
The intelligent dimming device for the outdoor indicator lamp provided by the invention has the following beneficial effects:
1) the function that the indicator lamp is automatically adjusted according to the ambient light is realized, the light pollution of the indicator lamp to the environment is reduced, and the effects of energy conservation and emission reduction are realized;
2) when the operation is carried out by a person, the brightness of the indicating lamp is automatically reduced, so that the influence on operators is avoided;
3) the indicator light environment detection sensor and the human-computer interface share the same environment light sensor, so that the cost is saved, and the influence of a plurality of holes on the appearance of the panel can be avoided.
4) The dimming circuit adopts fewer components and is low in cost.
Although the present invention has been described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. The utility model provides an outdoor pilot lamp intelligent light adjusting device, includes microcontroller and touch-sensitive screen, microcontroller and touch-sensitive screen electricity link to each other, its characterized in that, microcontroller's input is connected with ambient light sensor and touch-sensitive screen, microcontroller's output passes through optoelectronic coupler and pilot lamp dimmer circuit electricity and links to each other.
2. The intelligent dimming device for outdoor indicator lights according to claim 1, wherein the dimming circuit for indicator lights is a common anode driving circuit or a common cathode driving circuit.
3. The intelligent dimming device for outdoor indicator lamps as claimed in claim 2, wherein the common anode driving circuit comprises a PMOS transistor for controlling the LED driving power switch, the gate of the PMOS transistor is connected to the positive electrode of the power supply through a resistor R1, and is connected to the anodes of three diodes D1, D2 and D3 through a resistor R2, and the cathodes of the diodes D1, D2, D3 and the LED indicator lamps are respectively connected to the driving signals of three LEDs of green, red and yellow; the source electrode of the PMOS tube is connected to the positive electrode of a power supply, and the drain electrode of the PMOS tube is connected to the anode of the LED indicator lamp and used for driving the LED indicator lamp; and an output collector of the photoelectric coupler is connected to a source electrode of the PMOS tube, and an output emitter of the photoelectric coupler is connected to a grid electrode of the PMOS tube.
4. The intelligent dimming device for outdoor indicator lamps as claimed in claim 2, wherein the common cathode driving circuit comprises an NMOS transistor for controlling the LED driving power switch, the gate of the NMOS transistor is connected to the negative pole of the power supply through a resistor R1, and is connected to the cathodes of three diodes D1, D2 and D3 through a resistor R2, and the anodes of the diodes D1, D2, D3 and the LED indicator lamps are respectively connected to the driving signals of three LEDs of green, red and yellow; the source electrode of the NMOS tube is connected to the negative electrode of a power supply, and the drain electrode of the NMOS tube is connected to the anode of the LED indicator lamp and used for driving the LED indicator lamp; and an output collector of the photoelectric coupler is connected to the grid electrode of the NMOS tube, and an output emitter of the photoelectric coupler is connected to the source electrode of the NMOS tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921505255.8U CN210579360U (en) | 2019-09-10 | 2019-09-10 | Intelligent dimming device for outdoor indicator lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921505255.8U CN210579360U (en) | 2019-09-10 | 2019-09-10 | Intelligent dimming device for outdoor indicator lamp |
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| CN210579360U true CN210579360U (en) | 2020-05-19 |
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| CN201921505255.8U Active CN210579360U (en) | 2019-09-10 | 2019-09-10 | Intelligent dimming device for outdoor indicator lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519889A (en) * | 2019-09-10 | 2019-11-29 | 上海尹莱仕光电科技有限公司 | Outdoor indicator light intelligent dimming device and method |
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2019
- 2019-09-10 CN CN201921505255.8U patent/CN210579360U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519889A (en) * | 2019-09-10 | 2019-11-29 | 上海尹莱仕光电科技有限公司 | Outdoor indicator light intelligent dimming device and method |
| CN110519889B (en) * | 2019-09-10 | 2024-04-02 | 上海尹莱仕光电科技有限公司 | Intelligent dimming device and method for outdoor indicator lamp |
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Inventor after: Chen Qingji Inventor after: Xue Zhibo Inventor before: Chen Qingji Inventor before: Xue Zhibo Inventor before: Gao Guanjun |