CN104394638A - Timing dimming LED streetlight controller - Google Patents
Timing dimming LED streetlight controller Download PDFInfo
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- CN104394638A CN104394638A CN201410796209.3A CN201410796209A CN104394638A CN 104394638 A CN104394638 A CN 104394638A CN 201410796209 A CN201410796209 A CN 201410796209A CN 104394638 A CN104394638 A CN 104394638A
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- chip
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- chip microcomputer
- mode switch
- clock
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a timing dimming LED streetlight controller which comprises a clock chip, a singlechip microcomputer, a PWM driving circuit, an LED streetlight, a mode switch, a level switch chip and a PC, wherein the clock chip and the mode switch are both connected with the singlechip microcomputer; the singlechip microcomputer is connected with the LED streetlight through the PWM driving circuit; the singlechip microcomputer is further connected with the PC through the level switch chip. By adopting the technical scheme of the invention, not only the labor cost is reduced, but also the purposes of energy conservation and emission reduction are achieved; automatic synchronous and on-batch updating are achieved, and the trouble of manual setup is avoided.
Description
Technical field
The present invention relates to the technical fields such as timing controlled, brightness adjustment control and LED illumination, be specifically related to a kind of timing dimming LED road lamp controller.
Background technology
Along with expanding economy, energy-saving and emission-reduction and low-carbon economy have become the focus of current global concern.LED and light-emitting diode are a kind of can be the solid-state semiconductor device of visible ray by electric energy conversion.LED has environmental protection, energy-conservation, the characteristic such as life-span length, concussion resistibility, obtains in the road lighting of each big and medium-sized cities at home at present and applies more and more widely, become the first-selection of alternative conventional high-tension sodium vapor lamp.In LED street lamp illumination application, for realizing the object of control and energy savings automatically, need to adopt certain control mode, such as, when the evening draws on, LED street lamp illumination highlights should be opened, after zero point, most of urban road is almost empty, on the road of the low magnitude of traffic flow, now keep highlight illumination obviously to there is no need.Therefore street lamp brightness is regulated particularly important, also very crucial to energy-saving and emission-reduction.
Summary of the invention
For overcoming deficiency of the prior art, the object of the present invention is to provide a kind of timing dimming LED road lamp controller, be applied to urban road field of LED illumination, the time that this controller sets according to timer realizes time switch and timesharing PWM brightness adjustment control to LED street lamp, both save human cost, reach again the object of energy-saving and emission-reduction.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
A kind of timing dimming LED road lamp controller, comprise clock chip, single-chip microcomputer, PWM drive circuit, LED street lamp, mode switch, level transferring chip and PC, described clock chip is all connected with described single-chip microcomputer with described mode switch, and described single-chip microcomputer is connected with described LED street lamp through described PWM drive circuit, and described single-chip microcomputer is also connected with described PC by described level transferring chip.
Further, described clock chip is real-time timepiece chip DS1302, and described single-chip microcomputer is AVR single chip ATmega8, and described level transferring chip is level transferring chip MAX232.
Further, described mode switch switches the mode of operation of described controller, and described mode of operation has two kinds to be time control pattern and time generation patterns respectively.
Compared with prior art, the present invention has following beneficial effect:
Technical solution of the present invention, the time that controller sets according to timer realizes time switch and timesharing PWM brightness adjustment control to LED street lamp, both saves human cost, and reaches again the object of energy-saving and emission-reduction; The clock chip time takes from PC, can realize automatic synchronization and batch updating, saves the trouble manually arranged.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present invention.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the general structure block diagram of controller of the present invention.
Number in the figure illustrates: 1, clock chip, 2, single-chip microcomputer, 3, PWM drive circuit, 4, LED street lamp, 5, mode switch, 6, level transferring chip, 7, PC.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
With reference to shown in Fig. 1, a kind of timing dimming LED road lamp controller, comprise clock chip 1, single-chip microcomputer 2, PWM drive circuit 3, LED street lamp 4, mode switch 5, level transferring chip 6 and PC 7, described clock chip 1 is all connected with described single-chip microcomputer 2 with described mode switch 5, described single-chip microcomputer 2 is connected with described LED street lamp 4 through described PWM drive circuit 3, and described single-chip microcomputer 2 is also connected with described PC 7 by described level transferring chip 6.
Further, described clock chip 1 is real-time timepiece chip DS1302, and described single-chip microcomputer 2 is AVR single chip ATmega8, and described level transferring chip 6 is level transferring chip MAX232.
Further, described mode switch 5 switches the mode of operation of described controller, and described mode of operation has two kinds to be time control pattern and time generation patterns respectively.
Preferably, time control pattern is system worked well pattern, and this Time Controller realizes time switch and timesharing PWM brightness adjustment control according to the time of setting to LED street lamp 4; Road lamp switch and brightness of illumination are regulated and are all realized by the duty ratio arranging PWM drive circuit 3 switching tube; Described time generation patterns is used for carrying out real-time update to clock chip 1 time, and this arranges the trouble can saving the manual adjustments time, is directly updated in the middle of clock chip 1 by PC 7 real-time time.
Operation principle of the present invention:
During System Implementation, high-performance selected by the single-chip microcomputer 2 of controller, not only cost performance is high for 8 AVR single chip ATmega8, ATmega8 of low-power consumption, and its external pin is little, is extremely convenient to System Implementation and reduces system cost.Clock chip 1 selects the high-performance of DALLAS company of the U.S., low-power consumption, band RAM real-time timepiece chip DS1302.It can to year, month, day, week, time, point and carry out timing second, and automatically can to adjust number of days monthly and the number of days in leap year.DS1302 power consumption is very low, and when maintenance data and clock information, power is less than 1mW, when not having main power source, adopting auxiliary power 3V lithium battery power supply to work and reaching 10 years.
Real-time timepiece chip DS1302 provides sprocket pulse by the crystal oscillator of 32.768kHz, when realizing, the timing of minute, second, during use, two of crystal oscillator pins is connect respectively X1 and the X2 pin of DS1302.DS1302 carries out synchronous communication by SPI three-wire interface and ATmega8, RST pin, SCLK serial clock pin, I/O serial data pin three line I/O mouth corresponding to ATmega8 is connected respectively.Backup battery adopts 3V lithium button cell to power, and working power is provided after 0.1uF capacitor filtering by 5V power supply.
Mode switch 5 is a toggle switch, a voltage status is delivered to single-chip microcomputer 2 one I/O ports.When this pin is rendered as high level, system works, in time control pattern, is now system worked well state; When this pin presents low level, system works, in time generation patterns, now can realize automatic synchronization PC time function.
When controller works in time control pattern, first read the current time of DS1302 clock chip, according to system set-up parameters, calculate and control duty ratio, duty cycle signals is exported to the brightness that PWM drive circuit 3 controls LED street lamp 4.The switch of LED street lamp 4 can be controlled by arranging different duty and regulate brightness of illumination, even can be realized the electrodeless control of brightness of illumination by programming, control very convenient and meticulous.Time switch and timesharing PWM brightness adjustment control are realized to LED street lamp 4, both saved human cost, and reached again the object of energy-saving and emission-reduction.
When controller works in clock generation patterns, can realize in the middle of PC 7 time real-time update to controller clock chip 1, to realize the function of automatic synchronization time.Adopt the mode of PC serial write time can save the trouble of manual setup times, be conducive to batch production.Under this mode of operation, single-chip microcomputer 2 is set up serial communication with PC 7 and is connected, PC 7 to single-chip microcomputer 2 transmitting time time, minute, second data, single-chip microcomputer 2 is written into after receiving serial data in the middle of the RAM memory of clock chip 1.Because single-chip microcomputer 2 uses Transistor-Transistor Logic level, PC 7 serial ports provides RS-232 level, needs to use level transferring chip 6 to realize Transistor-Transistor Logic level and the exchange of RS-232 level, and level transferring chip 6 adopts MAX232 chip.Need the TXD signal of PC 7, through MAX232, RS-232 signal level is converted to the RXD pin that Transistor-Transistor Logic level send single-chip microcomputer 2; Transistor-Transistor Logic level is converted to the RXD pin that RS-232 level delivers to PC 7 through MAX232 by the TXD signal of single-chip microcomputer 2.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a timing dimming LED road lamp controller, comprise clock chip (1), single-chip microcomputer (2), PWM drive circuit (3), LED street lamp (4), mode switch (5), level transferring chip (6) and PC (7), it is characterized in that, described clock chip (1) is all connected with described single-chip microcomputer (2) with described mode switch (5), described single-chip microcomputer (2) is connected with described LED street lamp (4) through described PWM drive circuit (3), described single-chip microcomputer (2) is also connected with described PC (7) by described level transferring chip (6).
2. timing dimming LED road lamp controller according to claim 1, it is characterized in that, described clock chip (1) is real-time timepiece chip DS1302, described single-chip microcomputer (2) is AVR single chip ATmega8, and described level transferring chip (6) is level transferring chip MAX232.
3. timing dimming LED road lamp controller according to claim 1, is characterized in that, described mode switch (5) switches the mode of operation of described controller, and described mode of operation has two kinds to be time control pattern and time generation patterns respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796209.3A CN104394638A (en) | 2014-12-18 | 2014-12-18 | Timing dimming LED streetlight controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796209.3A CN104394638A (en) | 2014-12-18 | 2014-12-18 | Timing dimming LED streetlight controller |
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| CN104394638A true CN104394638A (en) | 2015-03-04 |
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| CN201410796209.3A Pending CN104394638A (en) | 2014-12-18 | 2014-12-18 | Timing dimming LED streetlight controller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163426A (en) * | 2015-08-18 | 2015-12-16 | 上海源明照明科技有限公司 | Programming setting circuit used for setting output parameters of LED driving power supply |
| CN105517258A (en) * | 2016-01-29 | 2016-04-20 | 苏州东山精密制造股份有限公司 | LED street lamp |
| CN106535433A (en) * | 2016-11-08 | 2017-03-22 | 何春红 | Timing control streetlamp |
| CN116602265A (en) * | 2023-05-25 | 2023-08-18 | 北京工业大学 | Intelligent control system and method for building keloid animal model |
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| US20130187623A1 (en) * | 2012-01-24 | 2013-07-25 | Renesas Electronics America Inc. | Smart dimming solution for led light bulb and other non-linear power ac loads |
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- 2014-12-18 CN CN201410796209.3A patent/CN104394638A/en active Pending
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| CN101969725A (en) * | 2010-10-11 | 2011-02-09 | 复旦大学 | Intelligent general light-emitting diode (LED) street lamp illuminating power supply system |
| US20130187623A1 (en) * | 2012-01-24 | 2013-07-25 | Renesas Electronics America Inc. | Smart dimming solution for led light bulb and other non-linear power ac loads |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105163426A (en) * | 2015-08-18 | 2015-12-16 | 上海源明照明科技有限公司 | Programming setting circuit used for setting output parameters of LED driving power supply |
| CN105163426B (en) * | 2015-08-18 | 2017-10-24 | 上海源明照明科技有限公司 | A kind of programming initialization circuit for being used to set LED drive power output parameter |
| CN105517258A (en) * | 2016-01-29 | 2016-04-20 | 苏州东山精密制造股份有限公司 | LED street lamp |
| CN106535433A (en) * | 2016-11-08 | 2017-03-22 | 何春红 | Timing control streetlamp |
| CN116602265A (en) * | 2023-05-25 | 2023-08-18 | 北京工业大学 | Intelligent control system and method for building keloid animal model |
| CN116602265B (en) * | 2023-05-25 | 2024-05-14 | 北京工业大学 | Intelligent control system and method for building keloid animal model |
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Application publication date: 20150304 |