CN102355775A - Energy-saving type LED street lamp and energy-saving control method thereof - Google Patents
Energy-saving type LED street lamp and energy-saving control method thereof Download PDFInfo
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- CN102355775A CN102355775A CN2011102479445A CN201110247944A CN102355775A CN 102355775 A CN102355775 A CN 102355775A CN 2011102479445 A CN2011102479445 A CN 2011102479445A CN 201110247944 A CN201110247944 A CN 201110247944A CN 102355775 A CN102355775 A CN 102355775A
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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
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- 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 an energy-saving type LED street lamp belonging to the technical field of illumination and comprising an LED lamp and a PWM (Pulse Width Modulation) chopping drive circuit providing drive for the LED lamp. The energy-saving type LED street lamp also comprises a microprocessor and an environment luminance detection module, wherein the microprocessor is respectively connected with the output end of the environment luminance detection module and the control end of the PWM chopping drive circuit through signals; and the environment luminance detection module is arranged out of the irradiation range of the LED lamp. The invention also discloses an energy-saving control method of the energy-saving type LED street lamp. Compared with the prior art, the invention can be used for adaptively regulating the luminance of the LED lamp according to actual environment luminance, thereby ensuring that the energy consumption is further reduced under the proper illumination condition.
Description
Technical field
The present invention relates to a kind of street lamp, relate in particular to a kind of energy-saving LED (Light-Emitting Diode, light-emitting diode) street lamp, belong to lighting technical field.
Background technology
Along with the continuous quickening of urbanization process, the contradiction between energy supply and the demand becomes increasingly conspicuous, and the demand of green illumination is also more and more urgent.In order to adapt to the demand of green illumination, increasing illuminating system using the LED lamp.LED is a kind of semiconductor solid luminescence device, and it utilizes the solid semiconductor chip as luminescent material, in semiconductor, through charge carrier compound energy of emitting surplus takes place and causes photo emissions.Because LED has advantages such as energy-conserving and environment-protective, the life-span is long, volume is little, has been widely used in various demonstrations, decoration, backlight at present.Aspect such as general lighting and urban landscape, be called as the 4th generation lighting source or green light source.Therefore adopting the LED street lamp to replace conventional road lamp is a kind of effective city power-economizing method.
The LED street lamp adopts constant current chip or PWM chopper circuit to drive usually.In order further to cut down the consumption of energy, there is the researcher to propose a kind of LED road lamp energy-saving control method: to control the opening and closing of LED street lamp according to the difference of illumination period, thereby reduce total energy consumption.Though this method can cut down the consumption of energy to a certain extent, this method only can be controlled the LED street lamp and in the opening and closing two states, switches, and is difficult to satisfy the needs of city illumination.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiency of existing LED street lamp, and a kind of Energy-Efficient Led Street Lamp and energy-saving control method thereof are provided, and can satisfy the city illumination needs under the varying environment brightness conditions, and can reduce energy resource consumption.
Energy-Efficient Led Street Lamp of the present invention comprises the LED lamp and is its PWM copped wave drive circuit that driving is provided that this Energy-Efficient Led Street Lamp also comprises microprocessor and ambient brightness detection module; Microprocessor is connected with the output of ambient brightness detection module, the control end signal of PWM copped wave drive circuit respectively; The ambient brightness detection module is installed on outside the range of exposures of said LED lamp.
The energy-saving control method of Energy-Efficient Led Street Lamp of the present invention may further comprise the steps:
The actual environment brightness that step 1, microprocessor reception environment brightness detection module detect in real time;
Step 2, microprocessor are confirmed best output current according to actual environment brightness;
Step 3, microprocessor are exported corresponding pwm signal according to the best output current that obtains, the duty ratio of control PWM copped wave drive circuit.
As one of preferred version, said microprocessor is confirmed best output current according to actual environment brightness, specifically according to following method:
Be provided with actual environment brightness-output current mapping table in the processor, this actual environment brightness-output current mapping table obtains through experiment in advance; Microprocessor is sought out the pairing output current of actual environment brightness of ambient brightness detection module output from actual environment brightness-output current mapping table, this output current is best output current.
As two of preferred version, said microprocessor is confirmed best output current according to actual environment brightness, specifically according to following method:
Be provided with actual environment brightness-output current functional relation in the processor, this actual environment brightness-output current functional relation obtains through experiment in advance; Microprocessor is according to the pairing output current of actual environment brightness of actual environment brightness-output current functional relation computing environment brightness detection module output, and this output current is best output current.
The present invention detects ambient brightness through the ambient brightness detection module in real time, exports corresponding electric current according to actual environment brilliance control PWM copped wave drive circuit then, and when ambient brightness was higher, output current was less, and the brightness that the LED lamp sends is less; When ambient brightness was low, output current was bigger, and the LED lamp provides higher brightness of illumination.Compare prior art, the present invention can adjust the brightness of illumination of LED lamp adaptively according to actual environment brightness, thereby is guaranteeing further to reduce energy resource consumption under the suitable lighting condition.
Description of drawings
Fig. 1 is the structured flowchart of Energy-Efficient Led Street Lamp of the present invention;
Fig. 2 is the schematic flow sheet of energy-saving control method of the present invention.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated:
The structure of Energy-Efficient Led Street Lamp of the present invention comprises LED lamp, PWM copped wave drive circuit, microprocessor and ambient brightness detection module as shown in Figure 1.PWM copped wave drive circuit provides its required drive current for the LED lamp, and its control end is connected with the I/O port of microprocessor; Microprocessor can be adjusted the duty ratio of PWM copped wave drive circuit through the different PMW signal of output, thereby regulates output current.The ambient brightness detection module comprises luminance sensor and luminance signal modulate circuit; Luminance sensor can adopt photo-sensitive cell commonly used such as photo resistance, photodiode, and the luminance signal that luminance sensor collects is nursed one's health through the luminance signal modulate circuit, converts digital data transmission into to microprocessor.In order to prevent that light that LED sends from influencing the accuracy of testing result, the ambient brightness detection module should be installed on beyond the range of exposures of LED lamp (the for example back side of LED lamp).Store the corresponding relation of confirming best output current according to ambient brightness in the microprocessor in advance; This corresponding relation can obtain through experiment in advance; For example can be under the different environment brightness conditions; Regulate the output current of LED lamp; Make the brightness of illumination of LED lamp be suitable for the human visual experience most, this output current is the pairing best output current of this ambient brightness.Finally can obtain an ambient brightness-output current relation curve, an available functional relation is described this relation curve; It is interval also ambient brightness can be divided into different scope, each interval corresponding one preferable output current value, thereby build environment brightness-output current mapping table.Ambient brightness-output current relation curve or functional relation are deposited in the memory cell of little processing; Microprocessor can be confirmed its pairing best output current according to actual environment brightness, and according to this best output current PWM copped wave drive circuit is controlled.
The function of PWM copped wave drive circuit is to carry out DC converting, is made up of power switch pipe usually, can realize DC converting than (being duty ratio) through the conducting/turn-off time of pwm signal power controlling switching tube.Its circuit structure and control method repeat no more for existing mature technology here.
Above-mentioned Energy-Efficient Led Street Lamp is controlled, as shown in Figure 2, specifically may further comprise the steps:
The actual environment brightness that step 1, microprocessor reception environment brightness detection module detect in real time;
In order to reduce computation of microprocessor, to save energy consumption, can adopt mode according to timing sampling, promptly whenever receive the one-time detection data at a distance from one period regular time;
Step 2, microprocessor are confirmed best output current according to actual environment brightness;
Microprocessor is sought from actual environment brightness-output current mapping table; Perhaps according to the pairing output current of actual environment brightness of actual environment brightness-output current functional relation computing environment brightness detection module output, this output current is best output current;
Step 3, microprocessor are exported corresponding pwm signal according to the best output current that obtains, the duty ratio of control PWM copped wave drive circuit.
Claims (5)
1. an Energy-Efficient Led Street Lamp comprises the LED lamp and for its PWM copped wave drive circuit that driving is provided, it is characterized in that this Energy-Efficient Led Street Lamp also comprises microprocessor and ambient brightness detection module; Microprocessor is connected with the output of ambient brightness detection module, the control end signal of PWM copped wave drive circuit respectively; The ambient brightness detection module is installed on outside the range of exposures of said LED lamp.
2. the energy-saving control method of Energy-Efficient Led Street Lamp according to claim 1 is characterized in that, may further comprise the steps:
The actual environment brightness that step 1, microprocessor reception environment brightness detection module detect in real time;
Step 2, microprocessor are confirmed best output current according to actual environment brightness;
Step 3, microprocessor are exported corresponding pwm signal according to the best output current that obtains, the duty ratio of control PWM copped wave drive circuit.
3. like the energy-saving control method of Energy-Efficient Led Street Lamp as described in the claim 2, it is characterized in that said microprocessor is confirmed best output current according to actual environment brightness, specifically according to following method:
Be provided with actual environment brightness-output current mapping table in the processor, this actual environment brightness-output current mapping table obtains through experiment in advance; Microprocessor is sought out the pairing output current of actual environment brightness of ambient brightness detection module output from actual environment brightness-output current mapping table, this output current is best output current.
4. like the energy-saving control method of Energy-Efficient Led Street Lamp as described in the claim 2, it is characterized in that said microprocessor is confirmed best output current according to actual environment brightness, specifically according to following method:
Be provided with actual environment brightness-output current functional relation in the processor, this actual environment brightness-output current functional relation obtains through experiment in advance; Microprocessor is according to the pairing output current of actual environment brightness of actual environment brightness-output current functional relation computing environment brightness detection module output, and this output current is best output current.
5. like the energy-saving control method of Energy-Efficient Led Street Lamp as described in the claim 2, it is characterized in that microprocessor is according to the preset time actual environment brightness that detects in real time of reception environment brightness detection module at interval.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102479445A CN102355775A (en) | 2011-08-26 | 2011-08-26 | Energy-saving type LED street lamp and energy-saving control method thereof |
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| CN2011102479445A CN102355775A (en) | 2011-08-26 | 2011-08-26 | Energy-saving type LED street lamp and energy-saving control method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103269546A (en) * | 2013-05-23 | 2013-08-28 | 中国科学院自动化研究所 | An intelligent control system and method for LED street lamps |
| CN103369771A (en) * | 2012-04-01 | 2013-10-23 | 朱慧君 | City lighting self-control system |
| WO2014127694A1 (en) * | 2013-02-19 | 2014-08-28 | 广东南能汇智节能科技有限公司 | Led street lamp control method and apparatus |
| CN104780655A (en) * | 2015-03-10 | 2015-07-15 | 长兴曙峰光电科技有限公司 | Street lamp |
| CN104853483A (en) * | 2015-04-16 | 2015-08-19 | 北京迈特力德信息技术有限公司 | Method and device for setting light level |
| CN105050263A (en) * | 2015-07-15 | 2015-11-11 | 广东融能科技有限公司 | Time-sharing automatic dimming system and method for light-emitting diode (LED) street lamp |
| CN107466140A (en) * | 2017-08-07 | 2017-12-12 | 广汉阿拉丁科技有限公司 | A kind of energy-saving electric power method of utilizing light |
| CN107509286A (en) * | 2017-08-07 | 2017-12-22 | 广汉阿拉丁科技有限公司 | The environment-friendly type illuminator realized using brilliance control |
| CN112996174A (en) * | 2021-04-17 | 2021-06-18 | 深圳科宏健半导体照明有限公司 | High-heat-dissipation type explosion-proof LED industrial illuminating lamp |
| CN114025448A (en) * | 2021-12-02 | 2022-02-08 | 深圳市源立信照明科技有限公司 | Flat lamp circuit and control method thereof |
| CN115119362A (en) * | 2022-07-04 | 2022-09-27 | 李金正 | Wisdom is street lamp energy recovery system at night for urban illumination |
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| KR20100131844A (en) * | 2009-06-08 | 2010-12-16 | 우주엘엔티(주) | LED lighting controller |
| CN102098846A (en) * | 2011-01-20 | 2011-06-15 | 深圳市华测检测技术股份有限公司 | Intelligent energy-saving LED (light emitting diode) lamp control system |
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- 2011-08-26 CN CN2011102479445A patent/CN102355775A/en active Pending
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| CN101025492A (en) * | 2006-02-16 | 2007-08-29 | 爱普生映像元器件有限公司 | Electrooptic device, driving circuit, and electronic device |
| KR20100131844A (en) * | 2009-06-08 | 2010-12-16 | 우주엘엔티(주) | LED lighting controller |
| CN102098846A (en) * | 2011-01-20 | 2011-06-15 | 深圳市华测检测技术股份有限公司 | Intelligent energy-saving LED (light emitting diode) lamp control system |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369771A (en) * | 2012-04-01 | 2013-10-23 | 朱慧君 | City lighting self-control system |
| WO2014127694A1 (en) * | 2013-02-19 | 2014-08-28 | 广东南能汇智节能科技有限公司 | Led street lamp control method and apparatus |
| CN103269546B (en) * | 2013-05-23 | 2015-10-28 | 中国科学院自动化研究所 | A kind of LED street lamp intelligent control and method thereof |
| CN103269546A (en) * | 2013-05-23 | 2013-08-28 | 中国科学院自动化研究所 | An intelligent control system and method for LED street lamps |
| CN104780655A (en) * | 2015-03-10 | 2015-07-15 | 长兴曙峰光电科技有限公司 | Street lamp |
| CN104853483B (en) * | 2015-04-16 | 2018-08-21 | 北京迈特力德信息技术有限公司 | A kind of light level setting method and device |
| CN104853483A (en) * | 2015-04-16 | 2015-08-19 | 北京迈特力德信息技术有限公司 | Method and device for setting light level |
| CN105050263A (en) * | 2015-07-15 | 2015-11-11 | 广东融能科技有限公司 | Time-sharing automatic dimming system and method for light-emitting diode (LED) street lamp |
| CN107466140A (en) * | 2017-08-07 | 2017-12-12 | 广汉阿拉丁科技有限公司 | A kind of energy-saving electric power method of utilizing light |
| CN107509286A (en) * | 2017-08-07 | 2017-12-22 | 广汉阿拉丁科技有限公司 | The environment-friendly type illuminator realized using brilliance control |
| CN112996174A (en) * | 2021-04-17 | 2021-06-18 | 深圳科宏健半导体照明有限公司 | High-heat-dissipation type explosion-proof LED industrial illuminating lamp |
| CN112996174B (en) * | 2021-04-17 | 2023-06-27 | 深圳科宏健半导体照明有限公司 | High heat dissipation type explosion-proof LED industrial lighting lamp |
| CN114025448A (en) * | 2021-12-02 | 2022-02-08 | 深圳市源立信照明科技有限公司 | Flat lamp circuit and control method thereof |
| CN114025448B (en) * | 2021-12-02 | 2023-10-20 | 深圳市源立信照明科技有限公司 | Flat lamp circuit and control method thereof |
| CN115119362A (en) * | 2022-07-04 | 2022-09-27 | 李金正 | Wisdom is street lamp energy recovery system at night for urban illumination |
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Application publication date: 20120215 |