CN203399372U - Solar energy LED street lamp controller for sensing weather - Google Patents

Solar energy LED street lamp controller for sensing weather Download PDF

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Publication number
CN203399372U
CN203399372U CN201320512187.4U CN201320512187U CN203399372U CN 203399372 U CN203399372 U CN 203399372U CN 201320512187 U CN201320512187 U CN 201320512187U CN 203399372 U CN203399372 U CN 203399372U
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CN
China
Prior art keywords
circuit
weather
led street
street lamp
current
Prior art date
Application number
CN201320512187.4U
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Chinese (zh)
Inventor
罗素芹
李常青
魏亚坤
王帅峰
朱翔鸥
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温州大学
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Priority to CN201320512187.4U priority Critical patent/CN203399372U/en
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Publication of CN203399372U publication Critical patent/CN203399372U/en

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    • Y02B20/42

Abstract

The utility model provides a solar energy LED street lamp controller for sensing weather, comprising an embedded microprocessor; and an accumulator electric quantity detection circuit, a weather parameter measuring circuit, a boost constant current circuit and a protection circuit which are all in connection with the embedded microprocessor. The accumulator electric quantity detection circuit is used for detecting residual electric quantity of an accumulator in real time; the weather parameter measuring circuit is used for measuring sunlight luminance and ambient temperature in real time; the boost constant current circuit is in connection with LED street lamps and is used for outputting constant current for the LED street lamps; the protection circuit is in connection with both an accumulator and a solar panel and is used for providing reverse connection protection, output overvoltage protection and short circuit protection for the accumulator and the solar panel. The solar energy LED street lamp controller for sensing weather can guarantee a high light rate of street lamps and required illumination intensity and lighting time in work under bad environmental conditions with bad light conditions, such as under overcast and rainy weather.

Description

The solar LED street lamp controller of perception weather

Technical field

The utility model belongs to solar LED street lamp controller field, is specifically related to a kind of solar LED street lamp controller of perception weather.

Background technology

Solar LED street lamp controller is that new forms of energy extensively utilize a kind of novel product under background.Solar LED street lamp controller is specially for solar power generation illumination system layout; The equipment solar energy that conversion solar energy cell panel absorbs expeditiously, produces electric energy storage battery is charged, but also powerful control function is provided.

Current LED solar street lamp controller has been considered the factors such as latitude, annual hours of daylight, and MPPT maximum power point tracking (MPPT) and the various strategy that discharges and recharges are launched to research.But, the electric power supply of the solar street light weather that places one's entire reliance upon, the charge volume of every day has very strong randomness and uncertainty, and the charge volume of second day can not accurately be predicted again.The control strategy of current LED solar street lamp controller is, do not consider weather conditions, and power output is all the same during street lamp work every night.At the plum rain season of south China, there is continuous rainy weather, LED solar street light charge in batteries is not enough, and electric energy runs out very soon, because can not supplement in time electricity, causes street lamp not work and battery damage.Therefore, do not consider that the LED solar street light control strategy of weather conditions is incomplete, the LED solar street lamp controller of not considering weather conditions is also incomplete.

Utility model content

The utility model, for above-mentioned the deficiencies in the prior art, provides a kind of solar LED street lamp controller of perception weather; The solar LED street lamp controller of this perception weather can be adjusted according to weather condition the power output of LED street lamp.

The utility model is achieved by the following technical solution:

A solar LED street lamp controller for weather, comprising:

Accumulator electric-quantity testing circuit, for detecting in real time the dump energy of storage battery;

Weather parameters measuring circuit, for measuring in real time illumination and the ambient temperature of sunlight;

Voltage increase and current constant circuit, is connected with LED street lamp, for to LED street lamp output constant current electric current;

Protective circuit, is all connected with solar panel with storage battery, for providing anti-reverse protection, output over-voltage protection and short-circuit protection to storage battery and solar panel;

Embedded microprocessor, is all connected with protective circuit with accumulator electric-quantity testing circuit, weather parameters measuring circuit, voltage increase and current constant circuit; For receiving the output data of accumulator electric-quantity testing circuit and weather parameters measuring circuit, and control the output of voltage increase and current constant circuit.

In the solar LED street lamp controller of perception weather described in the utility model, weather parameters measuring circuit can be measured current weather situation in real time, for the fixing bright light demand of solar LED street lamp and electric energy, rely on the contradiction of weather completely, embedded microprocessor can adopt the control strategy of adjusting brightness, bright light duration according to weather condition, reach extend the lighting time of continuous rainy weather, the brightness of illumination texts while guaranteeing work.

The solar LED street lamp controller of perception weather is the core of solar LED street lamp, guarantees that street lamp has very high bright light rate under the poor environmental condition of the continuous illumination conditions such as rainy weather, the illumination intensity while guaranteeing street lamp work and lighting the time.Simultaneously also solve continuous overcast and rainy caused storage battery quantity not sufficient and may cause the series of problems of overdischarge; the accumulator super-charge problem that illumination condition is sufficient, the continuous converting electrical energy of solar panels may cause, also has great positive effect to protection storage battery, increasing storage battery service life.

Preferably, described voltage increase and current constant circuit comprises based on the adjustable Boost booster circuit of PWM pulsewidth with based on the adjustable constant-current circuit of PWM pulsewidth.

So arrange, have better voltage regulation and load regulation, the stability of system and dynamic characteristic are also able to obvious improvement, and particularly its inherent current limiting capacity and parallel current-sharing ability make control circuit become simple and reliable.

Preferably, described embedded microprocessor adopts STM32F103RBT6 chip to realize.

So arrange, can make embedded microprocessor there is the characteristics such as high-performance, low-power consumption.

Below in conjunction with accompanying drawing, the utility model is further described.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of the solar LED street lamp controller of perception weather described in the utility model;

Fig. 2 is the circuit theory diagrams of embedded microprocessor;

Fig. 3 is based on the adjustable Boost booster circuit schematic diagram of PWM pulsewidth;

Fig. 4 is based on the adjustable constant-current circuit schematic diagram of PWM pulsewidth;

Fig. 5 is accumulator electric-quantity testing circuit schematic diagram.

Embodiment

As shown in Figure 1, the utility model provides a kind of solar LED street lamp controller of perception weather, comprises accumulator electric-quantity testing circuit, weather parameters measuring circuit, voltage increase and current constant circuit, protective circuit and embedded microprocessor.Accumulator electric-quantity testing circuit is for detecting in real time the dump energy of storage battery; Weather parameters measuring circuit is for measuring in real time illumination and the ambient temperature of sunlight; Voltage increase and current constant circuit, is connected with LED street lamp, for to LED street lamp output constant current electric current; Protective circuit; all be connected with solar panel with storage battery; for providing anti-reverse protection, output over-voltage protection and short-circuit protection to storage battery and solar panel; protective circuit can disconnect whole storage battery loop when careless reversal connection, thereby effectively protects storage battery and controller itself.

Embedded microprocessor, is all connected with protective circuit with accumulator electric-quantity testing circuit, weather parameters measuring circuit, voltage increase and current constant circuit; For receiving the output data of accumulator electric-quantity testing circuit and weather parameters measuring circuit, and control the output of voltage increase and current constant circuit.Meanwhile, embedded microprocessor is also controlled charge in batteries mode and is formulated corresponding bright light strategy, adjusts the illumination work mode of LED street lamp, realizes the charging of solar energy, the management of storage battery electric energy.

The solar LED street lamp controller of perception weather described in the utility model to storage battery, by measuring and adding up, obtains charge volume by the electrical power storage that daytime, solar panel was sent here.By measuring in real time the parameters such as illumination and temperature, identify current weather situation simultaneously, obtain the fuzzy quantity of weather data.When charge in batteries and electric discharge, measure accumulator internal resistance, polarizing voltage and terminal voltage, obtain fuzzy quantity storage battery dump energy.Embedded microprocessor, according to weather data, storage battery dump energy and charge volume, utilizes fuzzy controller decision-making, formulates different bright light strategies, adjusts the power output (brightness) of LED lamp.Thereby realize sunny weather, storage battery dump energy is sufficient, and power output is large, and lamp brightness is large.Otherwise, rainy weather, storage battery dump energy is not enough, and power output is little, and lamp brightness is also little.Under each power output condition, the brightness of LED lamp is divided into " very bright ", " brighter ", " in bright ", " owing bright " and " not working " five grades.

Simultaneously, the solar LED street lamp controller of perception weather described in the utility model also provides stable working power by low-power dissipation power supply for embedded microprocessor, itself adopts the voltage stabilizing chip of low-power consumption, thereby make the structure of solar LED street lamp controller of this perception weather simpler, power consumption is lower, longer service life.

Preferably, voltage increase and current constant circuit comprises based on the adjustable Boost booster circuit of PWM pulsewidth with based on the adjustable constant-current circuit of PWM pulsewidth, realizes the constant current output of LED street lamp.Wherein, the adjustable constant-current circuit of described PWM pulsewidth comprises UC3842 high-performance Single-end output formula current control mode pulse width modulator chip.So arrange, have better voltage regulation and load regulation, the stability of system and dynamic characteristic are also able to obvious improvement, and particularly its inherent current limiting capacity and parallel current-sharing ability make control circuit become simple and reliable.

The circuit diagram of embedded microprocessor as shown in Figure 2, embedded microprocessor U5 adopts STM32F103RBT6 chip to realize, the PA0 pin of microprocessor U5 is connected with the voltage sample end V_AD of accumulator electric-quantity testing circuit, the PA1 pin of microprocessor U5 is connected with the current sample end I_AD of accumulator electric-quantity testing circuit, the PC7 pin of microprocessor U5 is connected with the CON of LED drive circuit end, the VDD pin of microprocessor U2 is connected with the VCC of micro-power consumption power supply output, and the VSS pin ground connection of microprocessor U5 is connected.

Based on the adjustable Boost booster circuit schematic diagram of PWM pulsewidth as shown in Figure 3.Utilize the PWM pulsewidth can conditioning technology, output voltage is realized to constant voltage, thereby reach the constant of electric current, Boost booster circuit, completes the amplification of electric current.Basic BOOST booster circuit as shown in the figure, is comprised of inductance L, transistor Q, diode D, four elements of capacitor C, and power input voltage is accessed by J_in, the voltage after J_out output is boosted.When the conducting of Q pipe, J_in, L, Q three form Yi Ge loop, and power storage is in inductance L, because the reverse J_out terminal voltage of diode D can not reflux; When Q pipe turn-offs, J_in, L, D, J_out form Yi Ge loop, the magnetic energy of storing are discharged and are filled with in capacitor C, thereby reach the effect of boosting in inductance L.

Based on the adjustable constant-current circuit of PWM pulsewidth as shown in Figure 4.Three-terminal voltage-stabilizing chip U1, capacitor C 3, C4 form voltage of voltage regulation provides stable voltage for high-performance Single-end output formula current control mode pulse width modulator chip U2, high-performance Single-end output formula current control mode pulse width modulator chip U2, capacitor C 6, C2, C5, resistance R 6, R2, R3, R5 form the drive circuit that drives Q1, wherein R7 is current-limiting resistance, prevent that electric current is excessive, R8 is constantan wire, as sampling resistor, diode D1, D2, resistance R 1, capacitor C 1 are connected to form output voltage sampling circuit.

As shown in Figure 5, resistance R 1, R2, capacitor C 1, amplifier OP07 form voltage detecting circuit to accumulator electric-quantity testing circuit, and output is connected with V_AD; Resistance R 3, R4, R5, capacitor C 2, amplifier OP07 form current sampling circuit, and output is connected with I_AD.

The utility model is not only confined to above-mentioned embodiment; persons skilled in the art are according to the disclosed content of the utility model; can adopt other multiple embodiment to implement the utility model; therefore; every employing project organization of the present utility model and thinking; do some simple designs that change or change, all fall into the scope of the utility model protection.

Claims (3)

1. a solar LED street lamp controller for perception weather, is characterized in that, comprising:
Accumulator electric-quantity testing circuit, for detecting in real time the dump energy of storage battery;
Weather parameters measuring circuit, for measuring in real time illumination and the ambient temperature of sunlight;
Voltage increase and current constant circuit, is connected with LED street lamp, for to LED street lamp output constant current electric current;
Protective circuit, is all connected with solar panel with storage battery, for providing anti-reverse protection, output over-voltage protection and short-circuit protection to storage battery and solar panel;
Embedded microprocessor, is all connected with protective circuit with accumulator electric-quantity testing circuit, weather parameters measuring circuit, voltage increase and current constant circuit; For receiving the output data of accumulator electric-quantity testing circuit and weather parameters measuring circuit, and control the output of voltage increase and current constant circuit.
2. the solar LED street lamp controller of perception weather according to claim 1, is characterized in that, described voltage increase and current constant circuit comprises based on the adjustable Boost booster circuit of PWM pulsewidth with based on the adjustable constant-current circuit of PWM pulsewidth.
3. the solar LED street lamp controller of perception weather according to claim 1, is characterized in that, described embedded microprocessor adopts STM32F103RBT6 chip to realize.
CN201320512187.4U 2013-08-21 2013-08-21 Solar energy LED street lamp controller for sensing weather CN203399372U (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN201320512187.4U CN203399372U (en) 2013-08-21 2013-08-21 Solar energy LED street lamp controller for sensing weather

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CN203399372U true CN203399372U (en) 2014-01-15

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104091459A (en) * 2014-07-14 2014-10-08 沈阳翼飞达交通设施有限公司 Heavy weather intelligent detection displaying system
CN104284498A (en) * 2014-11-05 2015-01-14 光明国际(镇江)电气有限公司 Intelligent street lamp control system with weather perceptive function
CN105101566A (en) * 2015-08-31 2015-11-25 中山市南德太阳能灯饰有限公司 Boosting constant current solar street lamp controller
CN105517236A (en) * 2015-12-24 2016-04-20 赵晓玲 Solar energy-based LED street lamp lighting control system
CN109511205A (en) * 2018-12-27 2019-03-22 宁波英泰克照明有限公司 A kind of control method of solar energy intelligent road-lamp
CN110278643A (en) * 2019-06-25 2019-09-24 深圳市电明科技股份有限公司 A kind of solar street light control method, device and terminal device based on weather

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104091459A (en) * 2014-07-14 2014-10-08 沈阳翼飞达交通设施有限公司 Heavy weather intelligent detection displaying system
CN104284498A (en) * 2014-11-05 2015-01-14 光明国际(镇江)电气有限公司 Intelligent street lamp control system with weather perceptive function
CN105101566A (en) * 2015-08-31 2015-11-25 中山市南德太阳能灯饰有限公司 Boosting constant current solar street lamp controller
CN105517236A (en) * 2015-12-24 2016-04-20 赵晓玲 Solar energy-based LED street lamp lighting control system
CN109511205A (en) * 2018-12-27 2019-03-22 宁波英泰克照明有限公司 A kind of control method of solar energy intelligent road-lamp
CN110278643A (en) * 2019-06-25 2019-09-24 深圳市电明科技股份有限公司 A kind of solar street light control method, device and terminal device based on weather

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Granted publication date: 20140115

Termination date: 20160821