CN203193982U - Combined LED street lamp control device - Google Patents
Combined LED street lamp control device Download PDFInfo
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- CN203193982U CN203193982U CN2013201940918U CN201320194091U CN203193982U CN 203193982 U CN203193982 U CN 203193982U CN 2013201940918 U CN2013201940918 U CN 2013201940918U CN 201320194091 U CN201320194091 U CN 201320194091U CN 203193982 U CN203193982 U CN 203193982U
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- pwm output
- temperature sensor
- mcu module
- street lamp
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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 relates to a combined LED street lamp control device, which comprises an MCU module, PWM output modules, a temperature sensor and two street lamp driving power supplies, wherein the temperature sensor transmits detected street lamp temperature signals to the MCU module; the MCU module compares the received street lamp temperature signals with a set value in the MCU module and outputs two paths of pulse width modulation signals to a first PWM output module and a second PWM output module respectively; the first PWM output module transmits the received pulse width modulation signals to the first street lamp driving power supply to control the brightness of a first LED module; the second PWM output module transmits the received pulse width modulation signals to the second street lamp driving power supply to control the brightness of a second LED module; and the MCU module the duty ratio of the two paths of pulse width modulation signals after being superposed remains unchanged. The combined LED street lamp control device not only saves energy, but also prolongs the service life of street lamps.
Description
Technical field
The utility model relates to LED street lamp control field, is specifically related to a kind of control device of combined type LED road lamp.
Background technology
Along with LED technology in recent years has been subjected to extensive concern as lighting technology of new generation, LED power strengthens, and heat dissipation problem is also just more and more paid attention to by the people.The light decay of LED or life-span are directly relevant with its junction temperature, and it is bad to dispel the heat, and junction temperature is just high, and the life-span is also just short.
The reason of LED heating is because the electric energy that adds all is not converted into luminous energy, but a part transforms into heat energy.The light efficiency of LED has only 100lm/W at present, and its electro-optical efficiency approximately has only about 20 ~ 30%.That is to say that about 70% electric energy has all become heat energy.
Present controller for road lamp on the market or only consider energy-conserving control technology, or only light fixture design is strengthened the LED heat radiation, reach the purpose that prolongs the LED life-span.The two is relatively independent.Also do not have now a kind ofly to prolong the controller for road lamp in LED life-span by the PWM modulation technique, reach not only energy-conservation but also protect the purpose of LED.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, a kind of control device of combined type LED road lamp is provided, the control device of this combined type LED road lamp is by the temperature of temperature sensor perception LED module, satisfying under the situation of certain condition, cooperate the PWM modulation, switch the work of different LED module, reach the not only energy-conservation but also purpose that prolongs the LED life-span.
The purpose of this utility model is achieved in that a kind of control device of combined type LED road lamp, comprise MCU module, PWM output module, also comprise temperature sensor and two streetlamp driving power supplies, described temperature sensor passes to the MCU module with the temperature signal of detected street lamp; Described MCU module compares the temperature signal of the street lamp of acceptance and the set point in the MCU module, and output two-way pulse-width signal is given a PWM output module and the 2nd PWM output module respectively; A described PWM output module passes to first via lamp driving power source with the pulse-width signal that receives, and controls the brightness of a LED module; Described the 2nd PWM output module passes to second streetlamp driving power supply with the pulse-width signal that receives, and controls the brightness of the 2nd LED module; Duty ratio after the two-way pulse-width signal stack of described MCU module output remains unchanged.
The model of described temperature sensor is DS18B20, the tripod of described temperature sensor connects voltage VCC, the crus secunda of temperature sensor connects the input of MCU module, is in series with resistance R 2 between the crus secunda of temperature sensor and the voltage VCC, the first pin ground connection of temperature sensor.
It is the single-chip microcomputer of STC12C5410AD that described MCU module is selected model for use.
Described PWM output module comprises band resistance triode, optocoupler and resistance, the base stage of described band resistance triode connects the output of MCU module, the grounded emitter of band resistance triode, the collector electrode of band resistance triode is connected with an input of optocoupler, another input of optocoupler connects the 5V power supply, and the output of optocoupler connects the pulsewidth input signal cable of the driving power of light fixture working group.
The beneficial effects of the utility model are: because the utility model comprises MCU module, PWM output module, temperature sensor and two streetlamp driving power supplies, described temperature sensor passes to the MCU module with the temperature signal of detected street lamp, described MCU module compares the temperature signal of the street lamp of acceptance and the set point in the MCU module, after wherein the temperature of one group of LED module reaches set point, start handoff functionality.MCU module output two-way pulse-width signal is given a PWM output module and the 2nd PWM output module respectively, a described PWM output module passes to first via lamp driving power source with the pulse-width signal that receives, control the brightness of a LED module, described the 2nd PWM output module passes to second streetlamp driving power supply with the pulse-width signal that receives, and controls the brightness of the 2nd LED module.Two groups of LED modules carry out PWM simultaneously to be regulated, the two-way pulse-width signal of described MCU module output is through the algorithm output that cooperatively interacts, be used for guaranteeing that two-way pulse-width signal stack duty ratio remains unchanged, thereby the illuminance that guarantees street lamp does not change.Turn-off work fully until the LED of high temperature module, the LED module of low temperature begins to carry out operate as normal then, and so cycle detection is switched, and has avoided the LED module at high temperature to damage because working long hours, and has prolonged the life-span of street lamp.
Description of drawings
Fig. 1 is circuit block diagram of the present utility model;
Fig. 2 is the working circuit diagram of MCU module;
Fig. 3 is the circuit diagram of a PWM output module;
Fig. 4 is the circuit diagram of the 2nd PWM output module;
Fig. 5 is the working circuit diagram of temperature sensor;
Fig. 6 is a kind of embodiment schematic diagram of composite type street lamp.
In the accompanying drawing, 1 is the MCU module, and 2 is a PWM output module, and 3 is the 2nd PWM output module, and 4 is first via lamp driving power source, and 5 is second streetlamp driving power supply, and 6 is temperature sensor, and 7 is a LED module, and 8 is the 2nd LED module.
Embodiment
Referring to Fig. 1, a kind of control device of combined type LED road lamp comprises MCU module 1, PWM output module, also comprises temperature sensor 6 and two streetlamp driving power supplies, and described temperature sensor 6 passes to MCU module 1 with the temperature signal of detected street lamp; Described MCU module 1 compares the temperature signal of the street lamp of acceptance and the set point in the MCU module, and output two-way pulse-width signal is given a PWM output module 2 and the 2nd PWM output module 3 respectively; A described PWM output module 2 passes to first via lamp driving power source 4 with the pulse-width signal that receives, and controls the brightness of a LED module; Described the 2nd PWM output module 3 passes to second streetlamp driving power supply 5 with the pulse-width signal that receives, and controls the brightness of the 2nd LED module; Duty ratio after the two-way pulse-width signal stack of described MCU module 1 output remains unchanged.The duty ratio of the pulse-width signal that the one LED module and the 2nd LED module are accepted can change.The duty ratio of the one LED module and the pulse-width signal that the 2nd LED module is accepted can be the same, the duty ratio of the pulse-width signal that the one LED module and the 2nd LED module are accepted also can be different, as long as the duty ratio after the pulse-width signal that the pulse-width signal that a LED module is accepted and the 2nd LED module the are accepted stack remains unchanged, thereby guarantee that illuminance does not change.
Referring to Fig. 2, it is the single-chip microcomputer of STC12C5410AD that the described MCU module of present embodiment is selected model for use.Be in series with crystal oscillator Y1 between the 6th, 7 pin of MCU module I C1, the end of crystal oscillator Y1 is by capacitor C 1 ground connection, and the other end of crystal oscillator Y1 is by capacitor C 2 ground connection.The C1 of present embodiment, C2 are the 22PF ceramic condenser, and Y1 is that frequency is the crystal oscillator of 11.0952MHZ.Crystal oscillator Y1, capacitor C 1, C2 have formed the clock circuit of single-chip microcomputer.Capacitor C 3 and resistance R 1 are connected between 5V power supply and the ground, and the 3rd pin of MCU module I C1 is connected between the negative pole and resistance R 1 of capacitor C 3, constitute electrify restoration circuit.The 28th pin of MCU module I C1 connects 5V power supply, the 14th pin ground connection of MCU module I C1.
Referring to Fig. 3 and Fig. 4, the input of a PWM output module is connected with first output of MCU module, and the output of a PWM output module is connected with the pulsewidth input signal cable of first via lamp driving power source, and first via lamp driving power source connects a LED module; The input of the 2nd PWM output module is connected with second output of MCU module, and the output of the 2nd PWM output module is connected with the pulsewidth input signal cable of second streetlamp driving power supply, and second streetlamp driving power supply connects the 2nd LED module.A described PWM output module comprises band resistance triode U8, optocoupler U7 and resistance.The base stage of described band resistance triode U8 connects the 1st pin of MCU module, the grounded emitter of band resistance triode U8, and the collector electrode of band resistance triode U8 is connected with the input of optocoupler U7, and another input of optocoupler U7 connects the 5V power supply.Be in series with resistance R 11 between the collector electrode of the band resistance triode U8 of present embodiment and the input of optocoupler U7.The output of described optocoupler U7 is connected with the pulsewidth input signal cable of the driving power of the first light fixture working group by the J3 interface.Wherein, the output of optocoupler U7 connects the 3rd pin of J3 interface, be in series with resistance R 12 and resistance R 13 between another output of optocoupler U7 and the 2nd pin of J3 interface, the 1st pin of J3 interface is connected the PWM-10V place between resistance R 12 and the resistance R 13.Resistance R 12 and the size of R13 for the control output current prevent that the pwm signal electric current is excessive.One resistance R 14 is connected between the 1st pin of the 1st pin of MCU module and J3 interface.Resistance R 14 is 0 Europe resistance.Resistance R 14 connects as selectivity, for the driving power of compatible single line input signal.Described the 2nd PWM output module comprises band resistance triode U13, optocoupler U12 and resistance.The base stage of described band resistance triode U13 connects the 2nd pin of MCU module, the grounded emitter of band resistance triode U13, and the collector electrode of band resistance triode U13 is connected with the input of optocoupler U12, and another input of optocoupler U12 connects the 5V power supply.Be in series with resistance R 24 between the collector electrode of the band resistance triode U13 of present embodiment and the input of optocoupler U12.The output of described optocoupler U12 is connected with the pulsewidth input signal cable of the driving power of the second light fixture working group by the J4 interface.Wherein, the output of optocoupler U12 connects the 3rd pin of J4 interface, be in series with resistance R 25 and resistance R 26 between another output of optocoupler U12 and the 2nd pin of J4 interface, the 1st pin of J4 interface is connected the PWM-1 place between resistance R 25 and the resistance R 26.Resistance R 25 and the size of R26 for the control output current prevent that the pwm signal electric current is excessive.One resistance R 28 is connected between the 1st pin of the 2nd pin of MCU module and J4 interface.Resistance R 28 is 0 Europe resistance.Resistance R 28 connects as selectivity, for the driving power of compatible single line input signal.
Referring to Fig. 5, the center of a described LED module and the 2nd LED module is equipped with one or two temperature sensor.The model of described temperature sensor is DS18B20.The tripod of this temperature sensor connects voltage VCC, and the crus secunda of temperature sensor connects the input of MCU module, is in series with resistance R 2 between the crus secunda of temperature sensor and the voltage VCC, the first pin ground connection of temperature sensor.
Referring to Fig. 6, the one LED module and the 2nd LED module are separately fixed at two difference rectangular frame that independently dispels the heat, two rectangular frames are overlapping up and down, make a LED module 7 and the 2nd LED module 8 be located at same horizontal plane side by side, formed a kind of combined type LED road lamp.The one LED module and the 2nd LED module of present embodiment are three.And a LED module and the 2nd LED module shift to install.Be provided with heat insulating mattress between two rectangular frames, be used for stopping the heat transmission between a LED module and the 2nd LED module, avoid the temperature phase mutual interference between a LED module and the 2nd LED module.First via lamp driving power source 4 is electrically connected with a LED module 7.Second streetlamp driving power supply 5 is electrically connected with the 2nd LED module 8.
Job step of the present utility model is as follows:
1. after single-chip microcomputer received signal, control PWM output module transferred out pulse-width signal to streetlamp driving power supply, controls the brightness of LED lamp pearl in one group of LED module, as a LED module.
2. the temperature information of the LED module gathered in real time of single-chip microcomputer reaches when setting safety value when detecting temperature, adjusts the pulse-width signal of a LED module, and the brightness of the LED lamp pearl of a LED module is reduced gradually.
3. open the 2nd LED module, adjust the pulse-width signal of the 2nd LED module, the brightness of the LED lamp pearl of the 2nd LED module is increased gradually, adjusting principle is to keep the pulse-width signal stack duty ratio of two groups of LED modules to remain unchanged.
4. finally close a LED module fully, open the 2nd LED module fully simultaneously, single-chip microcomputer is monitored the temperature information of the 2nd LED module in real time.
Claims (4)
1. the control device of a combined type LED road lamp comprises MCU module, PWM output module, it is characterized in that: also comprise temperature sensor and two streetlamp driving power supplies, described temperature sensor passes to the MCU module with the temperature signal of detected street lamp; Described MCU module compares the temperature signal of the street lamp of acceptance and the set point in the MCU module, and output two-way pulse-width signal is given a PWM output module and the 2nd PWM output module respectively; A described PWM output module passes to first via lamp driving power source with the pulse-width signal that receives, and controls the brightness of a LED module; Described the 2nd PWM output module passes to second streetlamp driving power supply with the pulse-width signal that receives, and controls the brightness of the 2nd LED module; Duty ratio after the two-way pulse-width signal stack of described MCU module output remains unchanged.
2. the control device of combined type LED road lamp according to claim 1, it is characterized in that: the model of described temperature sensor is DS18B20, the tripod of described temperature sensor connects voltage VCC, the crus secunda of temperature sensor connects the input of MCU module, be in series with resistance R 2 between the crus secunda of temperature sensor and the voltage VCC, the first pin ground connection of temperature sensor.
3. the control device of combined type LED road lamp according to claim 1, it is characterized in that: it is the single-chip microcomputer of STC12C5410AD that described MCU module is selected model for use.
4. the control device of combined type LED road lamp according to claim 1, it is characterized in that: described PWM output module comprises band resistance triode, optocoupler and resistance, the base stage of described band resistance triode connects the output of MCU module, the grounded emitter of band resistance triode, the collector electrode of band resistance triode is connected with an input of optocoupler, another input of optocoupler connects the 5V power supply, and the output of optocoupler connects the pulsewidth input signal cable of the driving power of light fixture working group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201940918U CN203193982U (en) | 2013-04-17 | 2013-04-17 | Combined LED street lamp control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201940918U CN203193982U (en) | 2013-04-17 | 2013-04-17 | Combined LED street lamp control device |
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| Publication Number | Publication Date |
|---|---|
| CN203193982U true CN203193982U (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201940918U Expired - Fee Related CN203193982U (en) | 2013-04-17 | 2013-04-17 | Combined LED street lamp control device |
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| Country | Link |
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| CN (1) | CN203193982U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007647A (en) * | 2014-04-23 | 2015-10-28 | 苏州鸿益丰光电有限公司 | Driving method and circuit of intelligent control lighting appliance |
| CN108601164A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and its intelligent domestic system of application |
| CN108601163A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and intelligent domestic system |
| CN116347709A (en) * | 2023-05-23 | 2023-06-27 | 深圳市江芯电子科技有限公司 | Energy-saving illumination control system based on intelligent control |
-
2013
- 2013-04-17 CN CN2013201940918U patent/CN203193982U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105007647A (en) * | 2014-04-23 | 2015-10-28 | 苏州鸿益丰光电有限公司 | Driving method and circuit of intelligent control lighting appliance |
| CN108601164A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and its intelligent domestic system of application |
| CN108601163A (en) * | 2018-07-04 | 2018-09-28 | 中山市古镇艳阳灯饰厂 | A kind of intelligent lamp and intelligent domestic system |
| CN116347709A (en) * | 2023-05-23 | 2023-06-27 | 深圳市江芯电子科技有限公司 | Energy-saving illumination control system based on intelligent control |
| CN116347709B (en) * | 2023-05-23 | 2023-09-19 | 深圳市江芯电子科技有限公司 | Energy-saving illumination control system based on intelligent control |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20200417 |