CN203554728U - Adjustable LED armrest illumination system - Google Patents
Adjustable LED armrest illumination system Download PDFInfo
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- CN203554728U CN203554728U CN201320577544.5U CN201320577544U CN203554728U CN 203554728 U CN203554728 U CN 203554728U CN 201320577544 U CN201320577544 U CN 201320577544U CN 203554728 U CN203554728 U CN 203554728U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The utility model discloses an adjustable LED armrest illumination system, and the system comprises an LED illumination device, and a PWM dimming device which is used for driving and adjusting the LED illumination device. The output end of the PWM dimming device is connected with the LED illumination device. According to the utility model, the PWM dimming device is used for driving the LED illumination device. During no person, the PWM dimming device adjusts an LED armrest lamp to illuminate in low luminous intensity. When there is a person on an escalator, the PWM dimming device adjusts the luminous intensity of the LED armrest lamp, so as to increase the luminous intensity, thereby achieving low-intensity illumination during no person on the escalator and high-intensity illumination when there is a person on the escalator, and achieving the purposes of beauty, saving energy, and high efficiency.
Description
Technical field
The utility model belongs to LED lighting field, is specifically related to a kind of adjustable LED handrail lighting system.
Background technology
Handrail is widely used in the large-scale public places such as market, subway, high ferro station, airport, public place of entertainment.LED light fixture has the features such as energy-saving and environmental protection, safety, is becoming the main product of lighting field.For space and consideration attractive in appearance, existing many high-grade handrails combine LED illumination at present.Current existing handrail lighting system brightness is not high, and very takes electricity, and does not reach environmental requirement.
Utility model content
The utility model object is to address the above problem, and a kind of adjustable LED handrail lighting system is provided, and this illuminator adopts energy-efficient light source, and intelligent light source control technique, energy-conserving and environment-protective more.
In order to achieve the above object, the technical scheme that the utility model adopts is: comprise LED lighting device, and for driving, regulate the PWM light modulating device of LED lighting device; The output of PWM light modulating device is connected with LED lighting device.
Described PWM light modulating device comprises sensor assembly, delay circuit, power circuit, pulse signal generating circuit, duty ratio adjusting circuit and output circuit; Described sensor assembly is exported to duty ratio adjusting circuit by delay circuit by signal; Power circuit by after resistance current limliting decompression for whole device provides power supply; The voltage output end of pulse signal generating circuit is connected with duty ratio adjusting circuit, and the output of duty ratio adjusting circuit is connected to by output circuit on the negative pole of LED lighting device, and the positive pole of LED lighting device is connected with power circuit.
Described LED lighting device is some groups of LED lamp strings.
Described sensor assembly is adopted as the infrared sensor that LED lamp string provides signal, and infrared sensor is exported high level, output low level during triggerless when triggering.
Described power circuit adopts 7805 circuit of three-terminal voltage-stabilizing integrated, and the input of 7805 circuit of three-terminal voltage-stabilizing integrated is connected with 24V DC power supply, and the 12V voltage VCC of output stable output, for whole circuit provides power supply.
Described output circuit comprises switching tube Q
1, described switching tube Q
1for metal-oxide-semiconductor, duty ratio adjusting circuit is connected with the negative pole of LED lighting device by the drain electrode of metal-oxide-semiconductor.
Described delay circuit is by NE555 chip, R
8and C
5the monostable trigger-action circuit forming, the signal of sensor assembly is converted to the signal of telecommunication of duration T, T=1.1R by delay circuit
8* C
5, when sensor assembly is triggered, can be continuously LED lamp string illumination sign is provided.
Described pulse signal generating circuit adopts 555 time-base circuits, produces the concussion of 600Hz, in concussion output, is limited to 8V, under concussion output, is limited to 4V sawtooth waveforms input duty cycle regulating circuit.
Described duty ratio adjusting circuit adopts operational amplifier, the signal of telecommunication of the duration T that delay circuit produces is exported to amplifier in-phase input end, the inverting input of the sawtooth waveforms input operational amplifier that 555 time-base circuits produce, after the voltage of the signal of telecommunication of duration T and sawtooth waveforms being compared by operational amplifier, from the output of operational amplifier, export the signal of variable duty ratio; The output of operational amplifier is connected with output circuit.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is by PWM light modulating device driving LED lighting device, nobody time by PWM light modulating device, LED handrail lamp is thrown light on low luminous intensity, while having people on staircase, by PWM light modulating device, regulate LED handrail lamp luminous intensity, its brightness is strengthened.Thereby realize when at staircase, nobody takes, the illumination of the LED handrail low light level, when staircase has people to take, the floodlighting of LED handrail, has reached attractive in appearance, energy-conservation, efficient object.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Wherein, 1 is infrared sensor module; 2 is LED lighting device; 3 is operational amplifier.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Referring to Fig. 1, the utility model comprises LED lighting device 2, and for driving, regulate the PWM light modulating device of LED lighting device 2, LED lighting device 2 is some groups of LED lamp strings; PWM light modulating device comprises sensor assembly 1, delay circuit, power circuit, pulse signal generating circuit, duty ratio adjusting circuit and output circuit, sensor assembly 1 is adopted as the infrared sensor that LED lamp string provides signal, infrared sensor is exported high level, output low level during triggerless when triggering; Power circuit adopts 7805 circuit of three-terminal voltage-stabilizing integrated, and the input of 7805 circuit of three-terminal voltage-stabilizing integrated is connected with 24V DC power supply, and the 12V voltage VCC of output stable output, for whole circuit provides power supply; Output circuit comprises switching tube Q
1, described switching tube Q
1for metal-oxide-semiconductor, duty ratio adjusting circuit is connected with the negative pole of LED lighting device 2 by the drain electrode of metal-oxide-semiconductor, and the positive pole of LED lighting device 2 is connected with power circuit; Described sensor assembly 1 is exported to duty ratio adjusting circuit by delay circuit by signal; Delay circuit is by NE555 chip, R
8and C
5the monostable trigger-action circuit forming, the signal of sensor assembly 1 is converted to the signal of telecommunication of duration T, T=1.1R by delay circuit
8* C
5, when sensor assembly 1 is triggered, can be continuously LED lamp string illumination sign is provided; Pulse signal generating circuit adopts 555 time-base circuits, produces the concussion of 600Hz, in concussion output, is limited to 8V, under concussion output, is limited to 4V sawtooth waveforms input duty cycle regulating circuit; Duty ratio adjusting circuit adopts operational amplifier 3, the signal of telecommunication of the duration T that delay circuit produces is exported to amplifier in-phase input end, the inverting input of the sawtooth waveforms input operational amplifier 3 that 555 time-base circuits produce, after the voltage of the signal of telecommunication of duration T and sawtooth waveforms being compared by operational amplifier 3, from the output of operational amplifier 3, export the signal of variable duty ratio.
Principle of the present utility model:
Infrared sensor module:
Whether someone takes to detect staircase, exports 0V low level when nobody takes, and exports high level when someone takes, and for LED lamp string lightens, provides signal.
Delay circuit:
When staircase has people, delay circuit determines the time of LED lamp string highlight illumination, and while guaranteeing that staircase has people, LED lamp string always can highlight illumination.The monostable trigger-action circuit that this part is comprised of NE555 chip, R, C, time of delay is by R
8and C
5determine, time of delay T=1.1R
8* C
5.Infrared sensor signal is partly converted to the signal of telecommunication of duration T by time delay.
Power circuit:
With 24V direct current, through resistor current, carry out simple current limliting decompression, connect 7805 module inputs, 7805 stable output 12V voltages, for regulating circuit other parts.
Generation can regulate the pwm signal of duty ratio:
With 555 circuit and supporting peripheral component, produce the concussion of 600Hz.Concussion output upper limit 8V, is limited to 4V sawtooth waveforms under concussion output.The signal of telecommunication of the duration T that time delay partly produces is exported to amplifier in-phase input end, with amplifier inverting input voltage ratio, by switching tube, export the signal of variable duty ratio.
Output circuit.
With metal-oxide-semiconductor Q1, connect the LED lamp string of staircase, staircase nobody while taking, with low optical illumination, when someone takes, LED handrail light intensity strengthens, until staircase nobody recover again low optical illumination while taking.
The course of work of the present utility model is such:
When having people to take elevator, trigger infrared sensor, infrared sensor is to the output high level of delay circuit, and delay circuit is according to R
8and C
5, the signal of telecommunication that output duration is T, wherein, T=1.1R
8* C
5; The signal of telecommunication of the duration T that time delay partly produces is exported to amplifier in-phase input end, with amplifier inverting input voltage ratio, by switching tube, export the signal of variable duty ratio, by this signal controlling LED lamp string.
Claims (8)
1. an adjustable LED handrail lighting system, is characterized in that: comprise LED lighting device (2), and for regulating the PWM light modulating device of LED lighting device (2); The output of PWM light modulating device is connected with LED lighting device (2);
Described PWM light modulating device comprises sensor assembly (1), delay circuit, power circuit, pulse signal generating circuit, duty ratio adjusting circuit and output circuit; Described sensor assembly (1) is exported to duty ratio adjusting circuit by delay circuit by signal; Power circuit by after resistance current limliting decompression for whole device provides power supply; The voltage output end of pulse signal generating circuit is connected with duty ratio adjusting circuit, and the output of duty ratio adjusting circuit is connected to by output circuit on the negative pole of LED lighting device (2), and the positive pole of LED lighting device (2) is connected with power circuit.
2. adjustable LED handrail lighting system according to claim 1, is characterized in that: described LED lighting device (2) is some groups of LED lamp strings.
3. adjustable LED handrail lighting system according to claim 2, is characterized in that: described sensor assembly (1) is adopted as the infrared sensor that LED lamp string provides signal, and infrared sensor is exported high level, output low level during triggerless when triggering.
4. adjustable LED handrail lighting system according to claim 1, it is characterized in that: described power circuit adopts 7805 circuit of three-terminal voltage-stabilizing integrated, the input of 7805 circuit of three-terminal voltage-stabilizing integrated is connected with 24V DC power supply, the 12V voltage VCC of output stable output, for whole circuit provides power supply.
5. adjustable LED handrail lighting system according to claim 1, is characterized in that: described output circuit comprises switching tube (Q
1), described switching tube (Q
1) be metal-oxide-semiconductor, duty ratio adjusting circuit is connected with the negative pole of LED lighting device (2) by the drain electrode of metal-oxide-semiconductor.
6. adjustable LED handrail lighting system according to claim 1, is characterized in that: described delay circuit is by NE555 chip, resistance R
8and capacitor C
5the monostable trigger-action circuit forming, the signal of sensor assembly (1) is converted to the signal of telecommunication of duration T, T=1.1R by delay circuit
8* C
5, when sensor assembly (1) is triggered, can be continuously LED lamp string illumination sign is provided.
7. adjustable LED handrail lighting system according to claim 6, it is characterized in that: described pulse signal generating circuit adopts 555 time-base circuits, produce the concussion of 600Hz, in concussion output, be limited to 8V, under concussion output, be limited to 4V sawtooth waveforms input duty cycle regulating circuit.
8. adjustable LED handrail lighting system according to claim 7, it is characterized in that: described duty ratio adjusting circuit adopts operational amplifier (3), the signal of telecommunication of the duration T that delay circuit produces is exported to amplifier in-phase input end, the inverting input of the sawtooth waveforms input operational amplifier (3) that 555 time-base circuits produce, after the voltage of the signal of telecommunication of duration T and sawtooth waveforms being compared by operational amplifier (3), from the output of operational amplifier (3), export the signal of variable duty ratio; The output of operational amplifier (3) is connected with output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577544.5U CN203554728U (en) | 2013-09-17 | 2013-09-17 | Adjustable LED armrest illumination system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320577544.5U CN203554728U (en) | 2013-09-17 | 2013-09-17 | Adjustable LED armrest illumination system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203554728U true CN203554728U (en) | 2014-04-16 |
Family
ID=50472786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320577544.5U Expired - Fee Related CN203554728U (en) | 2013-09-17 | 2013-09-17 | Adjustable LED armrest illumination system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203554728U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990021A (en) * | 2015-03-13 | 2015-10-21 | 河南科技大学 | Chargeable intelligent small table lamp with infrared range measurement and speech control |
| CN105188238A (en) * | 2015-11-06 | 2015-12-23 | 上海治云智能科技有限公司 | Intelligent energy-saving LED (Light Emitting Diode) illumination system |
| WO2022041046A1 (en) * | 2020-08-26 | 2022-03-03 | 南京骞翮物联网科技有限公司 | Internet of things-based intelligent lighting control system and control method therefor |
-
2013
- 2013-09-17 CN CN201320577544.5U patent/CN203554728U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990021A (en) * | 2015-03-13 | 2015-10-21 | 河南科技大学 | Chargeable intelligent small table lamp with infrared range measurement and speech control |
| CN105188238A (en) * | 2015-11-06 | 2015-12-23 | 上海治云智能科技有限公司 | Intelligent energy-saving LED (Light Emitting Diode) illumination system |
| WO2022041046A1 (en) * | 2020-08-26 | 2022-03-03 | 南京骞翮物联网科技有限公司 | Internet of things-based intelligent lighting control system and control method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |