CN103458555A - Zoned dimming system - Google Patents
Zoned dimming system Download PDFInfo
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- CN103458555A CN103458555A CN2012101731306A CN201210173130A CN103458555A CN 103458555 A CN103458555 A CN 103458555A CN 2012101731306 A CN2012101731306 A CN 2012101731306A CN 201210173130 A CN201210173130 A CN 201210173130A CN 103458555 A CN103458555 A CN 103458555A
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- chip microcomputer
- light source
- adjusting system
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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 invention discloses a zoned dimming system comprising a microcontroller and further comprises an infrared sensor module, a constant current drive circuit module, a motor and a light source module which are connected with the microcontroller. The signal output end of the infrared sensor module is connected to the signal input end of the microcontroller, the output end of the microcontroller is connected to the motor and the input end of the constant current drive circuit module, and the motor and the output end of the constant current drive circuit module are connected to the light source module. When a person in a zone is detected, the infrared sensor module inputs person position signals to the microcontroller, the microcontroller controls the motor to drive the light source module to rotate and points to a corresponding position, and meanwhile, the bright of the light source module is adjusted.
Description
Technical field
The present invention relates to a kind of subregion light adjusting system, relate in particular to a kind of subregion light adjusting system of illuminator being realized to intelligent and hommization brightness adjustment control.
Background technology
The light source of new generation attracted most attention as the current whole world, LED, because of advantages such as its high brightness, low in calories, long-life, nontoxic, recyclable recyclings, is widely used.But also exist in actual use, some problems of the utilization of resources.Because LED belongs to point-source of light, easily cause the surrounding even problem of heart uneven illumination in the dark.In some occasions, such as dormitory, hotel lobby, operating room and large parking lot, remote places such as road, people's activity often, only in a certain part, if it is not only influential to the life-span of LED lamp all to allow the LED lamp light at full capacity for a long time, also exists the phenomenon of the wasting of resources.
Summary of the invention
The present invention is in order to overcome the deficiencies in the prior art, be applied to dormitory, hotel lobby, operating room and large parking lot, remote road etc., according to the movable region of people, adopt the method for infrared induction, pulse-width modulation (being called for short PWM) and subregion light modulation to regulate brightness and the irradiation area of illuminator, realize the subregion light modulation, thereby raising effective utilization, reduce the wasting of resources, realize the purpose of energy-saving and emission-reduction.
The technical solution adopted for the present invention to solve the technical problems is: a kind of subregion light adjusting system, include single-chip microcomputer, and also include the infrared induction module, constant-current drive circuit module, motor, the light source module that are connected with single-chip microcomputer; The signal output part of infrared induction module connects the signal input part of single-chip microcomputer, and the output of single-chip microcomputer connects the input of motor and constant-current drive circuit module, and motor is connected light source module with the output of constant-current drive circuit module.When certain people from zone being detected arranged, infrared induction module inputs to single-chip microcomputer by the position of human body signal, and under Single-chip Controlling, the driven by motor light source module rotates and points to corresponding position, the brightness of light source module is regulated simultaneously.
Further, described light source module comprises that the light source base rotated by Electric Machine Control, the LED light source of being located on light source base form, and LED light source is LED lamp group.
Further, described single-chip microcomputer is by the constant circuit output of pulse width modulation controlled constant-current drive circuit module.Regulate the brightness of LED, the simplest way is exactly the drive current that changes it, but, with also having a problem, also change its spectrum and colour temperature in brightness adjusting, thereby shadow plays the skew of color.LED is a diode, and it can realize high-speed switch, and its switching speed, up to more than microsecond, is that any luminescent device is incomparable.Therefore, as long as the power supply of LED is made into to pulsed constant current supply, by the method that changes pulse duration, just can change its brightness, and utilize the persistence of vision effect of human eye, when LED switch change frequency is greater than 120Hz, human eye just can not felt flicker, and sees it being the mean flow rate of LED.This method is called PWM light modulation method.The advantage of PWM light modulation is not produce color offset, and flicker free has high light modulation precision, can with the digital control technology combination.
Further, the signal of described pulse-width modulation and adjustment are overflowed the interruption generation by the timer TO of single-chip microcomputer.Utilize the characteristic and the interruption of overflowing that utilizes single-chip microcomputer timer T0 of LED light-emitting diode high-speed switch, produce pulse signal, by changing the output duty cycle of square wave, realize the adjusting to LED brightness.
The PWM modulating pulse of LED lamp is produced by single-chip microcomputer (selecting STC89C52RC) pin P2.7, and its low and high level determines the on off operating mode of LED.Predicate 200 μ S during timer T0 is overflowed, every 10 subpulses are as one-period, and frequency is 5000HZ.Like this, in the square-wave cycle of every 1/5000 second, by changing the output duty cycle of square wave, thereby realize 10 grades of brightness regulation of LED lamp, the LED brightness degree is determined by the high level pulse number in each cycle.When the high level pulse number is 1, duty ratio is 1/10, and brightness is minimum, and when high level pulse is 10, duty ratio is that 1, LED brightness is the highest.
Further, described infrared induction module is comprised of at least two infrared inductors of being located at zones of different.In order to realize the subregion light modulation, at each, on regional position, infrared inductor is installed.
Further, described infrared inductor also is provided with wireless transmitter module, and single-chip microcomputer is provided with wireless receiving module.Consider that infrared inductor usually has a lot of inconvenience in installation wiring; so; increase wireless transmitter module and wireless receiving module and set up the network of a wireless sensing, realize the controlled in wireless of infrared inductor and single-chip microcomputer, conveniently realize that the space of switching value signal is transmitted.
Further, described subregion regulating system also includes the photosensitive circuit module.
Further, also be provided with power circuit, filter capacitor on described single-chip microcomputer.
This subregion light adjusting system also includes the Digiplex of control single chip computer.Except adjusting the brightness and motor steering position of LED lamp by infrared inductor etc., can also realize controlling by Digiplex, meet people to the demand of illumination and stability etc.
In sum, subregion light adjusting system of the present invention adopts the method for infrared induction, pulse-width modulation (being called for short PWM) and subregion light modulation to regulate brightness and the irradiation area of illuminator according to the movable region of people, realizes the subregion light modulation.The stability of this subregion light adjusting system is better, realized each set function, the people can accurately be detected and appear at regional position, and send corresponding signal to single-chip microcomputer, single-chip microcomputer, according to brightness and the motor steering position of the corresponding adjustment of signal LED lamp, has reached the high efficiency of the utilization of resources, thereby improves effective utilization, reduce the wasting of resources, realize the purpose of energy-saving and emission-reduction.Also can control manual realization by Digiplex simultaneously.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the embodiment of the present invention 1 subregion light adjusting system.
Embodiment
Embodiment 1
The described a kind of subregion light adjusting system of the embodiment of the present invention 1, as shown in Figure 1, include single-chip microcomputer, also includes the infrared induction module, constant-current drive circuit module, motor, the light source module that are connected with single-chip microcomputer; The signal output part of infrared induction module connects the signal input part of single-chip microcomputer, and the output of single-chip microcomputer connects the input of motor and constant-current drive circuit module, and motor is connected light source module with the output of constant-current drive circuit module.When certain people from zone being detected arranged, infrared induction module inputs to single-chip microcomputer by the position of human body signal, and under Single-chip Controlling, the driven by motor light source module rotates and points to corresponding position, the brightness of light source module is regulated simultaneously.
Further, described light source module comprises that the light source base rotated by Electric Machine Control, the LED light source of being located on light source base form, and LED light source is LED lamp group.
Further, described single-chip microcomputer is by the constant circuit output of pulse width modulation controlled constant-current drive circuit module.Regulate the brightness of LED, the simplest way is exactly the drive current that changes it, but, with also having a problem, also change its spectrum and colour temperature in brightness adjusting, thereby shadow plays the skew of color.LED is a diode, and it can realize high-speed switch, and its switching speed, up to more than microsecond, is that any luminescent device is incomparable.Therefore, as long as the power supply of LED is made into to pulsed constant current supply, by the method that changes pulse duration, just can change its brightness, and utilize the persistence of vision effect of human eye, when LED switch change frequency is greater than 120Hz, human eye just can not felt flicker, and sees it being the mean flow rate of LED.This method is called PWM light modulation method.The advantage of PWM light modulation is not produce color offset, and flicker free has high light modulation precision, can with the digital control technology combination.
Further, the signal of described pulse-width modulation and adjustment are overflowed the interruption generation by the timer TO of single-chip microcomputer.Utilize the characteristic and the interruption of overflowing that utilizes single-chip microcomputer timer T0 of LED light-emitting diode high-speed switch, produce pulse signal, by changing the output duty cycle of square wave, realize the adjusting to LED brightness.
The PWM modulating pulse of LED lamp is produced by single-chip microcomputer (selecting STC89C52RC) pin P2.7, and its low and high level determines the on off operating mode of LED.Predicate 200 μ S during timer T0 is overflowed, every 10 subpulses are as one-period, and frequency is 5000HZ.Like this, in the square-wave cycle of every 1/5000 second, by changing the output duty cycle of square wave, thereby realize 10 grades of brightness regulation of LED lamp, the LED brightness degree is determined by the high level pulse number in each cycle.When the high level pulse number is 1, duty ratio is 1/10, and brightness is minimum, and when high level pulse is 10, duty ratio is that 1, LED brightness is the highest.
Further, described subregion regulating system also includes the photosensitive circuit module.
Further, described infrared induction module is comprised of four infrared inductors of being located at zones of different.The place of throwing light on is divided into four zones, and five illumination orientations all are equipped with infrared inductor on the position in four zones.When certain people from zone being detected arranged, infrared inductor inputs to single-chip microcomputer by the position of human body signal, under Single-chip Controlling, driven by motor LED lamp rotates position corresponding to sensing and (points to this zone when there is the people in a zone, when there is the people in two zones simultaneously, point to two regional center positions, when there is the people in three zones or four zones, point to the center in three zones or four zones).Carry out the PWM light modulation simultaneously, when the no one, control wherein 4 LED lamps and extinguish one by one, middle 1 LED ten contrast light, reduce brightness one by one to 20% of original luminance.At first testing environment brightness, when ambient brightness is darker (otherwise the LED lamp does not work), a signal of photosensitive circuit module input is to single-chip microcomputer, then single-chip microcomputer is by infrared inductor human body regional signal, control LED lamp bright (otherwise the LED lamp does not work) while in place, the people being arranged, and utilize the PWM method to be regulated the brightness of LED lamp: when only having people from zone that arranged in place, the brightness that the LED lamp sends is 25%, when in two zones, the people being arranged, the brightness that the LED lamp sends is 75%, when in three and four zones, the people being arranged, the luminous brightness of LED is 100%.
Further, described infrared inductor also is provided with wireless transmitter module, and single-chip microcomputer is provided with wireless receiving module.Consider that infrared inductor usually has a lot of inconvenience in installation wiring; so; increase wireless transmitter module and wireless receiving module and set up the network of a wireless sensing, realize the controlled in wireless of infrared inductor and single-chip microcomputer, conveniently realize that the space of switching value signal is transmitted.
Further, also be provided with power circuit, filter capacitor on described single-chip microcomputer.
This subregion light adjusting system also includes the Digiplex of control single chip computer.Except adjusting the brightness and motor steering position of LED lamp by infrared inductor etc., can also realize controlling by Digiplex, meet people to the demand of illumination and stability etc.
The above, be only preferred embodiment of the present invention, not technology contents of the present invention done to any pro forma restriction.Any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical scheme of the present invention.
Claims (9)
1. a subregion light adjusting system, is characterized in that: include single-chip microcomputer, also include the infrared induction module, constant-current drive circuit module, motor, the light source module that are connected with single-chip microcomputer; The signal output part of infrared induction module connects the signal input part of single-chip microcomputer, and the output of single-chip microcomputer connects the input of motor and constant-current drive circuit module, and motor is connected light source module with the output of constant-current drive circuit module.
2. subregion light adjusting system according to claim 1 is characterized in that: described single-chip microcomputer is by the constant circuit output of pulse width modulation controlled constant-current drive circuit module.
3. subregion light adjusting system according to claim 2 is characterized in that: the signal of described pulse-width modulation and adjust timer TO by single-chip microcomputer and overflow and interrupt producing.
4. subregion light adjusting system according to claim 1, it is characterized in that: described infrared induction module is comprised of at least two infrared inductors of being located at zones of different.
5. subregion light adjusting system according to claim 4, it is characterized in that: described infrared inductor also is provided with wireless transmitter module, and single-chip microcomputer is provided with wireless receiving module.
6. according to the described subregion light adjusting system of claim 1-5 any one, it is characterized in that: described light source module comprises that the light source base rotated by Electric Machine Control, the LED light source of being located on light source base form, and LED light source is LED lamp group.
7. subregion light adjusting system according to claim 6, it is characterized in that: described subregion regulating system also includes the photosensitive circuit module.
8. subregion light adjusting system according to claim 7, is characterized in that: also be provided with power circuit, filter capacitor on described single-chip microcomputer.
9. subregion light adjusting system according to claim 8, it is characterized in that: described subregion light adjusting system also includes the Digiplex of control single chip computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101731306A CN103458555A (en) | 2012-05-30 | 2012-05-30 | Zoned dimming system |
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| CN2012101731306A CN103458555A (en) | 2012-05-30 | 2012-05-30 | Zoned dimming system |
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| CN103458555A true CN103458555A (en) | 2013-12-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104010412A (en) * | 2014-05-08 | 2014-08-27 | 河南科技大学 | Automatic partition control system and method for classroom luminous environment |
| CN107781655A (en) * | 2016-08-25 | 2018-03-09 | 漳州立达信光电子科技有限公司 | The control method of LED illumination lamp |
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| CN201234377Y (en) * | 2008-07-29 | 2009-05-06 | 济南格林节能开发有限公司 | Intelligent building lighting and fan automatic control apparatus |
| CN201764282U (en) * | 2009-12-28 | 2011-03-16 | 天津工业大学 | LED intelligent illuminating device |
| CN102155706A (en) * | 2010-12-29 | 2011-08-17 | 宁波来发照明科技有限公司 | Intelligent illumination lamp |
| CN202209547U (en) * | 2011-08-17 | 2012-05-02 | 深圳市华彩光电有限公司 | Novel energy-saving LED daylight lamp |
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2012
- 2012-05-30 CN CN2012101731306A patent/CN103458555A/en active Pending
Patent Citations (6)
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| CN1887536A (en) * | 2006-07-28 | 2007-01-03 | 北京工业大学 | Wolter tortoise with primary intelligent behevior |
| CN201234377Y (en) * | 2008-07-29 | 2009-05-06 | 济南格林节能开发有限公司 | Intelligent building lighting and fan automatic control apparatus |
| CN201764282U (en) * | 2009-12-28 | 2011-03-16 | 天津工业大学 | LED intelligent illuminating device |
| CN102155706A (en) * | 2010-12-29 | 2011-08-17 | 宁波来发照明科技有限公司 | Intelligent illumination lamp |
| CN202209547U (en) * | 2011-08-17 | 2012-05-02 | 深圳市华彩光电有限公司 | Novel energy-saving LED daylight lamp |
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| CN104010412A (en) * | 2014-05-08 | 2014-08-27 | 河南科技大学 | Automatic partition control system and method for classroom luminous environment |
| CN107781655A (en) * | 2016-08-25 | 2018-03-09 | 漳州立达信光电子科技有限公司 | The control method of LED illumination lamp |
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Application publication date: 20131218 |