CN101977467A - Intelligent controller of solar street lamp - Google Patents
Intelligent controller of solar street lamp Download PDFInfo
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- CN101977467A CN101977467A CN2010105293284A CN201010529328A CN101977467A CN 101977467 A CN101977467 A CN 101977467A CN 2010105293284 A CN2010105293284 A CN 2010105293284A CN 201010529328 A CN201010529328 A CN 201010529328A CN 101977467 A CN101977467 A CN 101977467A
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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 relates to an intelligent controller of a solar street lamp, which comprises a sensor module, a data processing control module connected with the sensor module, an accumulating module and an light emitting diode (LED) lamp interface module connected with the data processing control module, wherein the data processing control module is set into two operating modes of day and night, and enters the operating mode of the day or the night to control the charging and the discharging of the accumulating module according to the data collected by the sensor module; the accumulating module comprises a solar battery panel and a storage battery connected with the solar battery panel; an LED lamp interface module is connected with the data processing control module and comprises a low-power LED lamp interface and a high-power LED lamp interface; and the data processing control module controls the storage battery to discharge the LED lamp interface module by utilizing the data collected by the sensor module. The intelligent controller of the solar street lamp has the advantages that the defects of the traditional lamp controller are overcome; a high-power lamp is lighted when the intelligent controller judges that a person approaches; the charging efficiency is enhanced; energy sources are saved; the controlled part is safe and reliable; and the humanized control is realized.
Description
Technical field
The present invention relates to a kind of solar lighting field controller, especially a kind of solar street light intelligent controller.
Background technology
Energy-saving and emission-reduction, low-carbon economy are present world environments one big themes, and China is also vigorously advocating conservation-minded society, and the photovoltaic generation industry is developed rapidly.Solar energy illuminating product is because of having without cable laying, without trench excavation, and disposable input and advantage such as safe and reliable to operation, the favor of the developing department that more and more is subjected to throwing light on.Solar street lamp controller generally places outdoor, adopt automatically controlled more, because the solar energy converting efficient of polysilicon solar cell plate is not high, generally be no more than and surpass 17%, therefore can intelligence, the solar energy after the utilization conversion of hommization control and maximal efficiency seems particularly important.
Existing solar street lamp controller has often only been given prominence to appearance design, and sun energy circuit cell panel utilization rate of electrical is not high, do not pay attention to efficient and energy-conservation, and control section can not satisfy the security reliability requirement, and street lamp is lighted not enough hommization.
Summary of the invention
Technical problem to be solved by this invention provides a kind of solar street light intelligent controller, solved the shortcoming of above-mentioned existing controller for road lamp, time control round the clock, can judge whether the people near and light high power lamp, improved charge efficiency, saved the energy, control section is safe and reliable, has realized hommization control.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of solar street light intelligent controller, and it comprises:
Sensor assembly is made up of intensity of illumination transducer and infrared thermal releasing transducer,
The data processing and control module that is connected with sensor assembly, data processing and control module are set at two kinds of mode of operations of day and night, according to the data of sensor assembly collection enter daytime or night mode of operation, the charge or discharge of control power storage module,
Power storage module is made up of with the storage battery that is connected with solar panel solar panel, and solar panel is connected with data processing and control module, and storage battery is connected with LED lamp interface module,
The LED lamp interface module that is connected with data processing and control module, LED lamp interface module is made up of low-power LED lamp interface and high-capacity LED lamp interface, and the Data Control storage battery that data processing and control module is gathered by sensor assembly discharges to LED lamp interface module.
Data processing and control module is provided with booster circuit, reduction voltage circuit and accumulator voltage detecting circuit, by detecting the magnitude of voltage that solar panel obtains, selection is boosted or reduction voltage circuit, further adopt the MPPT algorithm, charge a battery from the motion tracking maximum power point, and the detection cell voltage prevents overshoot, crosses and put in charging process.
Data processing and control module is made up of single-chip microcomputer and peripheral circuit.
Peripheral circuit is made up of the filter circuit of ISP download circuit, indicating circuit, reset circuit, two independent buttons and AD, and the output of the output of the output of ISP download circuit, the output of reset circuit, two independent buttons and the filter circuit of AD is connected with the single-chip microcomputer input respectively; Input on the indicating circuit is connected with the single-chip microcomputer output.
Solar street light intelligent controller provided by the invention, beneficial effect is as follows:
1, because data processing and control module is set at two kinds of mode of operations of day and night, according to the signal enabling of the intensity of illumination sensor passes pattern that works by day, steering wheel under the control solar panel is aimed at the sun automatically, storage battery is charged, or startup mode of operation at night, the control storage battery discharges to low-power LED lamp interface, light low-power LED lamp, play and saved the energy when lighting effect, and built soft atmosphere, when human body is close, data processing and control module arrives signal according to the infrared thermal releasing sensor, the control storage battery discharges to the high-capacity LED lamp interface again, lights high-capacity LED lamp, provides enough intensities of illumination to pass through for the pedestrian, automatically extinguish again after a period of time, solved the shortcoming of above-mentioned existing controller for road lamp, time control round the clock, can judge whether the people near and light high power lamp, improved charge efficiency, saved the energy, control section is safe and reliable, has realized hommization control.
2, data processing and control module is provided with booster circuit, reduction voltage circuit, by detecting the magnitude of voltage that solar panel obtains, selection is boosted or reduction voltage circuit, further adopt the MPPT algorithm, charge a battery from the motion tracking maximum power point, can realize that extra low voltage starts charging, also can carry out electricity collection at the cloudy day, further improved charge efficiency, only remedied and easily produced the shortcoming of energy output deficiency by fine could the generating, guaranteed the operating time of street lamp, data processing and control module discontinuity detects battery tension AD value in whole charging process simultaneously, prevent the overshoot of storage battery, cross and put, further improved the security reliability of operation.
3, adopt the control core of single-chip microcomputer as data processing and control module, high-performance, low-power consumption and cheap are safeguarded simple and convenient.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples:
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is the circuit diagram of data processing and control module of the present invention;
Fig. 3 is the circuit diagram of booster circuit of the present invention;
Fig. 4 is the circuit diagram of reduction voltage circuit of the present invention;
Fig. 5 is the circuit diagram of storage battery testing circuit of the present invention;
The flow chart that Fig. 6 selects to boost for data processing and control module of the present invention or reduction voltage circuit charges a battery.
Embodiment
As shown in Figure 1, the present invention includes sensor assembly 1, form by intensity of illumination transducer and infrared thermal releasing transducer,
The data processing and control module 2 that is connected with sensor assembly 1, data processing and control module 2 are set at two kinds of mode of operations of day and night, the data of gathering according to sensor assembly 1 enter daytime or night mode of operation, 3 charge or discharge of control power storage module,
The LED lamp interface module 4 that is connected with data processing and control module 2, LED lamp interface module 4 is made up of low-power LED lamp interface and high-capacity LED lamp interface, 5 pairs of LED lamps of Data Control storage battery interface module, 4 discharges that data processing and control module 2 is gathered by sensor assembly 1.
Data processing and control module 2 is provided with booster circuit, reduction voltage circuit and accumulator voltage detecting circuit, by detecting the magnitude of voltage that solar panel obtains, selection is boosted or reduction voltage circuit, further adopt the MPPT algorithm, charge a battery from the motion tracking maximum power point, and the detection cell voltage prevents overshoot, crosses and put in charging process.
Data processing and control module 2 is made up of single-chip microcomputer and peripheral circuit, single-chip microcomputer is selected the Mega8 single-chip microcomputer for use, Fig. 2 is the circuit diagram of the governor circuit formed of Mega8 single-chip microcomputer and peripheral circuit, and peripheral circuit comprises the filter circuit of an ISP download circuit, indicating circuit, reset circuit, two independent buttons and AD; The output of the output of the output of ISP download circuit, the output of reset circuit, two independent buttons and the filter circuit of AD is connected with the single-chip microcomputer input respectively; Input on the indicating circuit is connected with the single-chip microcomputer output; The ISP circuit is that the download mouth is to be used to the single-chip microcomputer that downloads; Indicating circuit is used to indicate the power supply and the working condition of entire circuit; Reset circuit capacitance-resistance chosen according to the model of single-chip microcomputer and difference, and Xuan electric capacity is 10uF here, resistance 3.3K, and the time of integration:
, the mega16 high level pulse of 1.5uS at least that resets satisfies the requirement of reset circuit; Can set the time that single-chip microcomputer carries out the batch (-type) monitoring by button, setting-up time is at 0.1-5s. The AD filter circuit has played the effect of the ripple of filtered signal voltage better.
Fig. 3 is the circuit diagram of booster circuit:
The voltage power supply scope 0.5V-3.5V of Boost booster circuit, output is ignored the loss of circuit greater than 3.6V, expresses formula according to Boost booster circuit output voltage, can get the PWM duty ratio:
Maximum duty cycle Dmax is 0.86, and minimum duty cycle Dmin is 0.05, and the worst situation is duty ratio when maximum, tries to achieve inductance value according to the critical condition of continuity of electric current and is
The actual 100uH that gets, the operating frequency of switching tube is 7.6kHz in the formula.
The maximum actual drain-source current of switching tube is 2.5A, considers virtual voltage current spike and impact, and the electric current and voltage tolerance is got 2.5 and 2 times of allowances respectively, promptly should choose the withstand voltage 9V of being higher than, maximum current 5A.The actual NMOS pipe of selecting APM3005 for use, maximum drain-source voltage 30V, maximum drain current 50A, on state resistance 7m Ω, available single-chip microcomputer directly drives.
Diode is selected IN5822 for use, withstand voltage 50V, and conduction voltage drop 0.14V allows by electric current 6A, used two diode parallel connections reducing to flow through the conduction voltage drop of electric current when big in the circuit, thereby reduced the wastage.
The design of commutation circuit:
In foregoing circuit figure, except typical circuit topology, also added and be used for system works and when different input voltage grade, carry out the control circuit that circuit topological structure switches, because the variation of the input internal resistance of source, voltage, and the efficient of converter is unfixing, it is the highest that system will obtain the efficient that maximum power must at first guarantee the circuit topology of work at present, and the MPPT maximum power point tracking algorithm is just more effective like this; , system test shows that native system should carry out corresponding circuit and switch through being obtained related data when detecting input power supply floating voltage and be 7.2V.
Fig. 4 is the circuit diagram of reduction voltage circuit:
The poorest condition of work of inductor design is the situation that occurs in high input voltage: 0.13W/7.2V=0.018A (Buck reduction voltage circuit and Boost booster circuit switch critical voltage and be made as 7.2V);
During the high voltage input: 1W/20V=0.05A estimates peak current: 1.4Iout (rated)=1.4*0.3A=0.42A, operating frequency: 7.5KHz;
=46.6uH
The present invention finally adopts 50uH.
Choosing of electric capacity:
The electric current of input filter capacitor is the same with the current waveform of power switch, and these current waveforms are trapezoidal, and to output and the input filter capacitor major concern be the ripple current that flows through these electric capacity; In this case, the alternating current component of electric current is identical on ripple current and the inductance.Therefore can probably calculate the parameter of required electric capacity:
=125u
Fly-wheel diode:
In order to reduce conducting and switching loss, fly-wheel diode will be used Schottky diode, and fly-wheel diode is selected IN5819 for use, and tube voltage drop is 0.183V, and its pressure drop of electric current of flowing through 0.5A is 0.35V.
Drive circuit:
Conventional Buck circuit, its efficient simple in structure is higher, the Buck circuit is selected the NMOS pipe for use, but in the Buck circuit, there is the problem that drives, since the fly-wheel diode conducting with by making the source electrode of NMOS pipe be in quick condition, promptly when the diode continuousing flow conducting, the current potential of the source electrode of NMOS approaches 0, and when this diode turn-offed, the current potential of switching tube source electrode was enhanced.
Fig. 5 is the circuit diagram of accumulator voltage detecting circuit:
Adopt the LM324 two stage amplifer, the Buck reduction voltage circuit amplifies with regard to only carrying out one-level, and the Boost booster circuit amplifies through two-stage, magnitude of voltage is sent into the AD mouth of single-chip microcomputer, whether testing circuit needs to enter monitor state, is directly powered by single-chip microcomputer IO because the LM324 operating current is little.Single-chip microcomputer enters park mode stopping to monitor at present, and single-chip microcomputer cuts out all monitoring peripheral circuits simultaneously, to lower the quiescent dissipation of charger.
Fig. 6 is the flow chart that data processing and control module of the present invention is selected to boost or reduction voltage circuit charges a battery, and during less than 7.2V, circuit working is operated in the Buck state at the Boost state during greater than 7.2V at input voltage.After single-chip microcomputer will collect input voltage, by the operating state of commutation circuit decision-making circuit.
Make the input terminal voltage of converter equal half of DC power supply voltage Es if regulate duty ratio, then show to have traced into maximum power point; Application method of exhaustion search utility and optimum gradient method trace routine combine and realize the design's MPPT maximum power point tracking strategy; The step-size in search of the method for exhaustion is 1/8, behind per step sample rate current, current current value and Ic is compared, and notes current maxima by Imax, and writes down the duty ratio at maximum place; After search was finished, the duty ratio D at the maximum power point place that current duty ratio is set to search entered the optimum gradient method trace routine then; In optimum gradient trace routine, be divided by by the current increment value and the duty ratio increment size in per step, obtain gradient m (g); M (g) and admissible error E compare, and have traced into maximum power point if m (g)＜E then thinks, withdraw from trace routine; Otherwise, then calculate m (g) and the product of adjusting factor k, and upgrade the value of duty ratio according to the symbol of m (g), enter next step search.
The course of work of the present invention is as follows:
Utilize photovoltaic power generation technology, adopt the Mega8 single-chip microcomputer to be the control core, set two kinds of mode of operations of day and night: detect intensity of illumination with the illumination intensity sensor, by day, when intensity of illumination is higher than default definite value, start the pattern that works by day, steering wheel under the control solar panel is aimed at the sun automatically, by detecting the magnitude of voltage that solar panel obtains, selects to boost or reduction voltage circuit, further adopt the MPPT algorithm, charge a battery from the motion tracking maximum power point; Because the voltage power supply scope 0.5V-3.5V of Boost booster circuit so realized the ultralow charging of 0.5V voltage, can carry out cloudy electricity collection, also can charge as usual at the cloudy day.
When arriving night, intensity of illumination sensor intensity of illumination is lower than when presetting definite value, start the pattern of working at night,, adopt the LED lamp of two different capacities to insert LED lamp interface 4: high-capacity LED lamp and low-power LED lamp in order to satisfy energy-conservation requirement and hommization.When detecting ambient lighting intensity and be lower than default definite value, the control storage battery discharges to low-power LED lamp interface, light low-power LED lamp, play and saved the energy when lighting effect, and built soft atmosphere, when human body is close, the Mega8 single-chip microcomputer arrives signal according to the infrared thermal releasing sensor, the control storage battery discharges to the high-capacity LED lamp interface again, light high-capacity LED lamp, provide enough intensities of illumination to pass through, extinguish automatically again after a period of time for the pedestrian, the time of lighting of high-capacity LED lamp is adjustable, further personalized requirements.Single-chip microcomputer discontinuity detects battery tension AD value in the whole process, prevents that the overshoot of storage battery, mistake from putting.
Claims (4)
1. solar street light intelligent controller is characterized in that it comprises:
Sensor assembly (1) is made up of intensity of illumination transducer and infrared thermal releasing transducer,
The data processing and control module (2) that is connected with sensor assembly (1), data processing and control module (2) is set at two kinds of mode of operations of day and night, the data of gathering according to sensor assembly (1) enter daytime or night mode of operation, the charge or discharge of control power storage module (3)
Power storage module (3) is made up of with the storage battery that is connected with solar panel solar panel, and solar panel is connected with data processing and control module (2), and storage battery is connected with LED lamp interface module (4),
The LED lamp interface module (4) that is connected with data processing and control module (2), LED lamp interface module (4) is made up of low-power LED lamp interface and high-capacity LED lamp interface, and the Data Control storage battery (5) that data processing and control module (2) is gathered by sensor assembly (1) discharges to LED lamp interface module (4).
2. solar street light intelligent controller according to claim 1, it is characterized in that: data processing and control module (2) is provided with booster circuit, reduction voltage circuit and accumulator voltage detecting circuit, by detecting the magnitude of voltage that solar panel obtains, selection is boosted or reduction voltage circuit, further adopt the MPPT algorithm, charge a battery from the motion tracking maximum power point, and the detection cell voltage prevents overshoot, crosses and put in charging process.
3. solar street light intelligent controller according to claim 1 and 2 is characterized in that: data processing and control module (2) is made up of single-chip microcomputer and peripheral circuit.
4. solar street light intelligent controller according to claim 3, it is characterized in that: peripheral circuit is made up of the filter circuit of ISP download circuit, indicating circuit, reset circuit, two independent buttons and AD, and the output of the output of the output of ISP download circuit, the output of reset circuit, two independent buttons and the filter circuit of AD is connected with the single-chip microcomputer input respectively; Input on the indicating circuit is connected with the single-chip microcomputer output.
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| CN2010105293284A CN101977467A (en) | 2010-11-03 | 2010-11-03 | Intelligent controller of solar street lamp |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588864A (en) * | 2012-01-10 | 2012-07-18 | 洛阳沃德节电科技开发有限公司 | Method for lighting high-rise apartment by solar energy and solar lamp |
| CN102684480A (en) * | 2012-05-15 | 2012-09-19 | 江苏大学 | Method for calculating energy-storing capacitance of power supply system of voltage-reducing type solar LED (light emitting diode) street lamp |
| CN102904302A (en) * | 2012-09-28 | 2013-01-30 | 上海理工大学 | High-efficiency solar charging device and charging method thereof |
| CN103379715A (en) * | 2013-07-08 | 2013-10-30 | 南京信息工程大学 | Automatic street lamp controlling device of street lamp and control method |
| CN103807720A (en) * | 2012-11-09 | 2014-05-21 | 深圳市海洋王照明工程有限公司 | Fire emergency light with camera |
| CN104955240A (en) * | 2015-07-06 | 2015-09-30 | 揭阳中诚集团有限公司 | Intelligent integrated streetlamp |
| CN106527165A (en) * | 2016-12-13 | 2017-03-22 | 上海科勒电子科技有限公司 | Human body monitoring device, intelligent toilet and intelligent household appliance |
| CN106961139A (en) * | 2017-04-14 | 2017-07-18 | 上海斐讯数据通信技术有限公司 | The continuation of the journey method for improving and Intelligent worn device of a kind of Intelligent worn device |
| CN108271294A (en) * | 2018-01-29 | 2018-07-10 | 上海裕芯电子科技有限公司 | A kind of application of solar energy intelligent switch method and circuit |
| CN111290471A (en) * | 2020-02-20 | 2020-06-16 | 南京工程学院 | Novel maximum power tracking microcontroller of thermoelectric power generation system |
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2010
- 2010-11-03 CN CN2010105293284A patent/CN101977467A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588864A (en) * | 2012-01-10 | 2012-07-18 | 洛阳沃德节电科技开发有限公司 | Method for lighting high-rise apartment by solar energy and solar lamp |
| CN102684480A (en) * | 2012-05-15 | 2012-09-19 | 江苏大学 | Method for calculating energy-storing capacitance of power supply system of voltage-reducing type solar LED (light emitting diode) street lamp |
| CN102904302A (en) * | 2012-09-28 | 2013-01-30 | 上海理工大学 | High-efficiency solar charging device and charging method thereof |
| CN103807720B (en) * | 2012-11-09 | 2017-11-21 | 深圳市海洋王照明工程有限公司 | Fire emergency lamp with camera |
| CN103807720A (en) * | 2012-11-09 | 2014-05-21 | 深圳市海洋王照明工程有限公司 | Fire emergency light with camera |
| CN103379715A (en) * | 2013-07-08 | 2013-10-30 | 南京信息工程大学 | Automatic street lamp controlling device of street lamp and control method |
| CN104955240A (en) * | 2015-07-06 | 2015-09-30 | 揭阳中诚集团有限公司 | Intelligent integrated streetlamp |
| CN106527165A (en) * | 2016-12-13 | 2017-03-22 | 上海科勒电子科技有限公司 | Human body monitoring device, intelligent toilet and intelligent household appliance |
| CN106527165B (en) * | 2016-12-13 | 2019-05-07 | 上海科勒电子科技有限公司 | Human body monitoring device, intellectual water closet and controlling intelligent household appliances |
| CN106961139A (en) * | 2017-04-14 | 2017-07-18 | 上海斐讯数据通信技术有限公司 | The continuation of the journey method for improving and Intelligent worn device of a kind of Intelligent worn device |
| CN106961139B (en) * | 2017-04-14 | 2020-12-29 | 台州智奥通信设备有限公司 | Endurance improving method of intelligent wearable device and intelligent wearable device |
| CN108271294A (en) * | 2018-01-29 | 2018-07-10 | 上海裕芯电子科技有限公司 | A kind of application of solar energy intelligent switch method and circuit |
| CN111290471A (en) * | 2020-02-20 | 2020-06-16 | 南京工程学院 | Novel maximum power tracking microcontroller of thermoelectric power generation system |
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Application publication date: 20110216 |