CN205005304U - Control system of LED lamp and light intensity sensor thereof - Google Patents
Control system of LED lamp and light intensity sensor thereof Download PDFInfo
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- CN205005304U CN205005304U CN201520637207.XU CN201520637207U CN205005304U CN 205005304 U CN205005304 U CN 205005304U CN 201520637207 U CN201520637207 U CN 201520637207U CN 205005304 U CN205005304 U CN 205005304U
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- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 238000004043 dyeing Methods 0.000 abstract 1
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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 a control system of LED lamp and light intensity sensor thereof, the control system of LED lamp includes executable module, display module, clock module, temperature sensor module, LED matrix module, drive circuit module and light intensity sensor, light intensity sensor includes polylith PCB board and a plurality of photo resistance, every the PCB board on inlayed one the photo resistance. Owing to has adopted the pulsewidth modulation technique, has realized the purpose according to environmental factor self -adaptive control illumination intensity. Owing to added red LED and green LED in the LED matrix, improved white light LED's dyeing index, make human feeling of setting a camera become more natural. Because the light intensity sensor who adopts in this system is the simple and easy structure by PCB board and photosensitive resistors, has reduced the cost of system to the maximum value is got from the illumination intensity of different angle measure surrounding environment to this structure after the contrast, make the illumination intensity information of executable module received surrounding environment more accurate.
Description
Technical field
The utility model relates to control field, refers to a kind of control system and optical sensor thereof of LED especially.
Background technology
Intelligent lighting system take computer technology as core, in conjunction with subjects such as communication and automations, automatically controls lighting apparatus, while providing appropriate light environment, reduces power consumption and reduce costs expense and mounting cost.
The features such as compare traditional light fixture, LED has energy-conserving and environment-protective, and volume is little, and brightness is large.Present many LED-based Intelligent control illuminating systems also continue to bring out.However, present LED intelligent control system also has many aspects to need to improve.Such as, some system scheme of also adopting time controling or controlling manually.Based on the time, control is carried out to LED luminance simple and convenient, but environmental change is insensitive to external world.Artificial Control can regulate according to Man's Demands, but needs certain cost of labor.These traditional control modes too much rely on effector, control to compare dispersion, and effectively cannot concentrate and manage, and real-time and intellectuality are too low.On the other hand, the light source most of the time under Traditional control is in running order, even if all open under unmanned state, wastes a large amount of energy; Also having some systems by using accurate transducer detection intensity of illumination around, utilizing LED node to form an intelligent network.System takes remote control on microcosmic, and presence should wait hommization control mode, can build various suitable luminous environment; Macroscopically then from the collecting and distributing future development to distributed AC servo system of centralized-control box, as Danalite intelligent lighting system, but such system often to lay cost very high, be not suitable for domestic environment.
Utility model content
In view of this, it is simple that the purpose of this utility model is to propose a kind of structure, and cost is low, and responsively can respond to external environmental change to regulate the control system of the LED of luminosity.
Based on the control system of a kind of LED that above-mentioned purpose the utility model provides, comprise Executive Module, display module, clock module, temperature sensor module, LED matrix module, drive circuit module and optical sensor, described clock module is used for described Executive Module transmission time information, described temperature sensor is for gathering ambient temperature information and sending to Executive Module, described optical sensor is for gathering environment illumination intensity information and sending to Executive Module, the time that described display module receives for showing described main control module, temperature and light is according to strength information, described control module is used for the described temporal information according to receiving, temperature information and illumination intensity information generate drive singal, and drive described LED matrix module to change luminous intensity according to described drive singal by described drive circuit module.Described optical sensor, comprise polylith pcb board and multiple photo resistance, pcb board described in every block is embedded with the photo resistance described in, described polylith pcb board forms regular polygon prism, pcb board wherein described in one piece is as the end face of regular polygon prism, and all the other pcb boards, as the side of regular polygon prism, do not establish bottom surface, the ground wire of described multiple photo resistance links together, and the output line of described multiple photo resistance is connected with outside receiving system.
Optionally, described Executive Module utilizes pulse modulation technology to carry out brilliance control to LED.
Optionally, described Executive Module is the pcb board being embedded with STC12C5A60S2 single-chip microcomputer, and described pcb board has key board, realizes the brightness of Artificial Control LED by described key board.
Optionally, in described LED matrix module, also add red LED and green LED, for improving the Di of white light LEDs.
Optionally, described Executive Module adopts AD converter to carry out analog-to-digital conversion to the data of collecting.
Optionally, described AD converter utilizes pulse modulation technology that described data are converted to duty ratio.
The invention also discloses a kind of optical sensor, comprise polylith pcb board and multiple photo resistance, the pcb board described in every block is embedded with the photo resistance described in; Described polylith pcb board forms regular polygon prism, and the pcb board wherein described in a piece is as the end face of regular polygon prism, and all the other pcb boards, as the side of regular polygon prism, do not establish bottom surface; The ground wire of described multiple photo resistance links together, and the output line of described multiple photo resistance is connected with Executive Module.Described optical sensor is preferably not limited only to above-mentioned LED control system for above-mentioned LED control system.
Optionally, described regular polygon prism is regular triangular prism.
As can be seen from above, the control system of a kind of LED that the utility model provides and optical sensor thereof, owing to have employed pulse modulation technology, temperature and light according to the surrounding environment collected shines intensity and temporal information, above-mentioned information is converted to the PWM ripple of an applicable duty ratio by described Executive Module, be applied on LED matrix by drive circuit, LED matrix just can send the light of different brightness according to different duty ratios, system just achieves the object of environmentally factor Automatic adjusument intensity of illumination.Owing to adding red LED and green LED in LED matrix, improve the Di of white light LEDs, make human body to light feel become more natural.Due to the easy structure that the optical sensor adopted in this system is made up of pcb board and photo resistance, reduce the cost of system, and this structure detects the intensity of illumination of surrounding environment from different perspectives, after contrast, get maximum, the illumination intensity information of the surrounding environment that Executive Module is received is more accurate.
Accompanying drawing explanation
Fig. 1 is the structure chart of the control system of a kind of LED of the utility model embodiment;
Fig. 2 is the structure chart of the optical sensor of the utility model pentagonal prism structure;
Fig. 3 is the structure chart of the optical sensor of the utility model regular triangular prism structure;
Fig. 4 is the vertical view of the optical sensor of the utility model regular triangular prism structure.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
Be illustrated in figure 1 the structure chart of the control system embodiment of a kind of LED of the utility model, a control system for LED, comprises Executive Module, display module, clock module, temperature sensor module, LED matrix module, drive circuit module and optical sensor.Described Executive Module is connected with described display module, described clock module, described temperature sensor module, described drive circuit module and described optical sensor respectively, and described drive circuit module is connected with described LED matrix module.Described clock module is used for described Executive Module transmission time information, described temperature sensor is used for sending temperature information to described Executive Module, described optical sensor is for experiencing environment illumination intensity and sending illumination intensity information to described master control system, the time that described display module receives for showing described Executive Module, temperature and light is according to strength information, described Executive Module is used for the temporal information received, temperature information and illumination intensity information process, and result is sent to described drive circuit module, described drive circuit module is for receiving the result of Executive Module and result being sent to described LED matrix module, described LED matrix module changes the intensity of illumination of LED for the result receiving the transmission of described drive circuit module.
In a kind of embodiment of the present utility model, described Executive Module is the pcb board being embedded with STC12C5A60S2 single-chip microcomputer, described pcb board has a key board, for the duty ratio of Artificial Control and the input temperature of external environment, time and intensity of illumination.LED can be remained on a proper control effects according to specific needs.Described display module is LCD1602 liquid crystal display, and described clock module is DS1302 clock, for Executive Module transmission time information; Described temperature sensor module is DS18B20 temperature sensor, for sending temperature information to Executive Module; Described drive circuit module is the circuit based on PT4115 chip, and this circuit can the electric current of stable output, and this electric current can be controlled by duty ratio and regulating resistance.Described optical sensor comprises four pieces of pcb boards and four photo resistance, the pcb board described in every block is embedded with the photo resistance described in, and described four pieces of pcb boards are configured with the bottomless column structure of lid.Photo resistance is used for detecting intensity of illumination around, and by AD converter illumination intensity information is converted to voltage and sends information of voltage to Executive Module.The time of collecting, temperature and light are converted to PWM duty ratio according to the information of intensity by Executive Module, and shine the duty ratio of intensity by drive circuit control LED matrix majorization intensity of illumination according to time, temperature and light.
When system is obtained after temporal information by clock chip, single-chip microcomputer by according to current time to the initial PWM duty ratio of one, LED matrix, so just do not need, at every turn all from 0, to improve the reaction speed of system.This initial value can artificially set, and also can system automatically detect.Artificial setting, by input through keyboard, detects the PWM duty ratio be corresponding to current environmental light intensity automatically.By detecting, the relation between the brightness of LED matrix and system duty cycle is:
Duty ratio (%)=1.92*LED matrix brightness (klux)-8.20 (1)
Duty ratio thus needed for the known system of formula.
Then system will detect environmental light intensity around by illuminant module, and illuminant module can convert environmental light intensity to voltage by AD converter and input to single-chip microcomputer.
Environmental light intensity (lux)=-350.5*AD transducer voltage (V)+976.5
Afterwards, system will compare this light intensity whether with zone of reasonableness within.This scope can artificially set, and also can system automatically detect.If light intensity is suitable, then keep this duty ratio; Otherwise corresponding raising or reduction duty ratio.Each duty ratio adjustment is initialized as 5%.
Reciprocal with this, system just can obtain one and stablize suitable duty ratio, and namely the brilliance control of LED matrix is in a stable scope.
In another kind of embodiment of the present utility model, add red LED and green LED in described LED matrix, thus improve the Di of white light LEDs matrix.Di refers to the similarity degree of artificial light and natural daylight.If Di is too low, human body will become very unnatural to the sensation of light.Although LED is better than conventional light source in many aspects, the Di of LED is relatively on the low side.The Di of sunlight is the general of 100, LED is only 70.If used for a long time, people will feel uncomfortable.Because white light LEDs is mixed by other color LED, be in general add yellow fluorescent powder by blue led, sunlight then comprises shades of colour.The luminosity of red LED and green LED is approximately 25% of white light LEDs.That is, when the duty ratio of white light LEDs is 100%.The duty ratio of red green LED is approximately 25%.This way can improve the Di of white light LEDs to a certain extent.
Fig. 2 is the structure chart of the optical sensor of the positive pentagonal prism structure of the utility model, comprises six pieces of pcb boards and six photo resistance, the pcb board described in every block is embedded with the photo resistance described in, and described six pieces of pcb boards form the positive pentagonal prism not having bottom surface.The ground wire of described photo resistance is linked together by inside, the output of described photo resistance is divided into two groups, wherein the output of one group of photo resistance is connected with three of A/D chip four inputs be arranged on Executive Module, the output of another group photo resistance is connected with three of being arranged in A/D chip four inputs another on Executive Module, each A/D chip gets the maximum intensity of illumination often organized photo resistance and gather, and Executive Module gets the maximum intensity of illumination of two A/D chip receptions as environment illumination intensity.The photo resistance of different light transducer is for collecting the illumination intensity information of different directions, and in the present embodiment, described optical sensor collects the illumination intensity information of front, left front, right front, left back and right back respectively.After Executive Module receives illumination intensity information, select maximum intensity of illumination as the intensity of illumination of surrounding environment to control LED matrix.
Fig. 3 is the structure chart of the optical sensor of the utility model regular triangular prism structure, comprises four pieces of pcb boards and four photo resistance, the pcb board described in every block is embedded with the photo resistance described in, and described four pieces of pcb boards form the regular triangular prism structure not having bottom surface.The ground wire of four photo resistance is linked together by inside, the output line of four photo resistance accesses four inputs of the A/D chip of Executive Module respectively, described photo resistance is for collecting surrounding environment illumination strength information, described optical sensor converts illumination intensity information to the signal of telecommunication by AD converter, and sends to Executive Module.The photo resistance of different light transducer is for collecting the illumination intensity information of different directions, and in the present embodiment, described optical sensor collects the illumination intensity information at left front, right front, top and the back side respectively.After Executive Module receives illumination intensity information, select maximum intensity of illumination as the intensity of illumination of surrounding environment to control LED matrix.
Use only pcb board due to described optical sensor and photo resistance can meet system requirements, reduce the cost of system.
Fig. 4 is the vertical view of the optical sensor of the utility model regular triangular prism structure, be positioned at the pcb board 401 at the optical sensor back side for gathering the intensity of illumination at the optical sensor back side, be positioned at pcb board 402 on the left of optical sensor for gathering the intensity of illumination of optical sensor left front, being positioned at pcb board 403 that optical sensor is put for gathering the intensity of illumination above optical sensor, being positioned at pcb board 404 on the right side of optical sensor for gathering the intensity of illumination of optical sensor right front.
Here the optical sensor of regular triangular prism and positive pentagonal prism structure is only gived, but do not show that described optical sensor only has this two kinds of structures, in actual applications, the optical sensor of different structure can be taked as required, as the optical sensor of four-prism, positive six prisms and positive seven prism structures.
Those of ordinary skill in the field are to be understood that: the discussion of above any embodiment is only exemplary, and not intended to be implies that the scope of the present disclosure (comprising claim) is limited to these examples; Under thinking of the present utility model, can combine between the technical characteristic in above embodiment or different embodiment yet, and there are other changes many of different aspect of the present utility model as above, they do not provide in details for the sake of simplicity.Therefore, all within spirit of the present utility model and principle, any omission made, amendment, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. a control system for LED, is characterized in that comprising Executive Module, display module, clock module, temperature sensor module, LED matrix module, drive circuit module and optical sensor;
Described clock module is used for described Executive Module transmission time information, described temperature sensor is for gathering ambient temperature information and sending to Executive Module, described optical sensor is for gathering environment illumination intensity information and sending to Executive Module, the time that described display module receives for showing described main control module, temperature and light is according to strength information, described control module is used for the described temporal information according to receiving, temperature information and illumination intensity information generate drive singal, and drive described LED matrix module to change luminous intensity according to described drive singal by described drive circuit module,
Described optical sensor, comprise polylith pcb board and multiple photo resistance, pcb board described in every block is embedded with the photo resistance described in, described polylith pcb board forms regular polygon prism, pcb board wherein described in one piece is as the end face of regular polygon prism, and all the other pcb boards, as the side of regular polygon prism, do not establish bottom surface, the ground wire of described multiple photo resistance links together, and the output line of described multiple photo resistance is connected with outside receiving system.
2. the control system of a kind of LED according to claim 1, is characterized in that, described Executive Module utilizes pulse modulation technology to carry out brilliance control to LED.
3. the control system of a kind of LED according to claim 1, is characterized in that, described Executive Module is the pcb board being embedded with STC12C5A60S2 single-chip microcomputer, and described pcb board has key board, realizes the brightness of Artificial Control LED by described key board.
4. the control system of a kind of LED according to claim 1, is characterized in that, also adds red LED and green LED in described LED matrix module, for improving the Di of white light LEDs.
5. the control system of a kind of LED according to claim 1, is characterized in that, described Executive Module adopts AD converter to carry out analog-to-digital conversion to the data of collecting.
6. the control system of a kind of LED according to claim 5, is characterized in that, described AD converter utilizes pulse modulation technology that described data are converted to duty ratio.
7. an optical sensor, is characterized in that comprising polylith pcb board and multiple photo resistance, the pcb board described in every block is embedded with the photo resistance described in;
Described polylith pcb board forms regular polygon prism, and the pcb board wherein described in a piece is as the end face of regular polygon prism, and all the other pcb boards, as the side of regular polygon prism, do not establish bottom surface;
The ground wire of described multiple photo resistance links together, and the output line of described multiple photo resistance is connected with outside receiving system.
8. a kind of optical sensor according to claim 7, is characterized in that, described regular polygon prism is regular triangular prism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520637207.XU CN205005304U (en) | 2015-08-21 | 2015-08-21 | Control system of LED lamp and light intensity sensor thereof |
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| CN201520637207.XU CN205005304U (en) | 2015-08-21 | 2015-08-21 | Control system of LED lamp and light intensity sensor thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848360A (en) * | 2016-05-30 | 2016-08-10 | 苏州科技学院 | Indoor lamp automatic control system |
| CN107734785A (en) * | 2017-11-15 | 2018-02-23 | 广东工业大学 | A kind of lamp light control system of LED |
| CN108279213A (en) * | 2018-02-08 | 2018-07-13 | 南京林业大学 | A kind of round-the-clock plant spectral measuring system and method |
| CN111556609A (en) * | 2020-05-14 | 2020-08-18 | 南方科技大学 | Light source adjusting method and light source |
-
2015
- 2015-08-21 CN CN201520637207.XU patent/CN205005304U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848360A (en) * | 2016-05-30 | 2016-08-10 | 苏州科技学院 | Indoor lamp automatic control system |
| CN107734785A (en) * | 2017-11-15 | 2018-02-23 | 广东工业大学 | A kind of lamp light control system of LED |
| CN108279213A (en) * | 2018-02-08 | 2018-07-13 | 南京林业大学 | A kind of round-the-clock plant spectral measuring system and method |
| CN111556609A (en) * | 2020-05-14 | 2020-08-18 | 南方科技大学 | Light source adjusting method and light source |
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