CN104661376A - Intelligent driving module of luminous block and driving method of driving module - Google Patents
Intelligent driving module of luminous block and driving method of driving module Download PDFInfo
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- CN104661376A CN104661376A CN201310588543.5A CN201310588543A CN104661376A CN 104661376 A CN104661376 A CN 104661376A CN 201310588543 A CN201310588543 A CN 201310588543A CN 104661376 A CN104661376 A CN 104661376A
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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
Abstract
The invention discloses an intelligent driving module of a luminous block, which comprises a code selection circuit, a fine brightness adjustment signal acquisition module, a pulse generation circuit, and an output driving circuit, wherein the code selection circuit reads a pulse code of an external resistor, and generates and outputs a duty ratio signal of a corresponding pulse signal to the pulse generation circuit; the fine brightness adjustment signal acquisition module is used for acquiring dimming voltage output by a dimming potentiometer and outputs the dimming voltage to the pulse generation circuit; the pulse generation circuit is used for receiving a day/night brightness change-over signal, an operation mode selection signal and a fine brightness adjustment signal acquisition circuit transmitted from an interface circuit, a signal transmitted from a fine brightness adjustment signal acquisition circuit and a signal transmitted from the code selection circuit, and then outputs a corresponding control pulse; and the output driving circuit is used for amplifying the control pulse output by the pulse generation circuit into a driving signal of the luminous block so as to drive the luminous block to be lightened at different brightness. The module has the advantages that the module is strong in generality, modularized and miniaturized, and meets characteristics of a human eye.
Description
Technical field
The present invention relates to a kind of module realizing carrying out all kinds of light-emitting block brilliance control by external hardware coding, be specially a kind of light-emitting block intelligent driver module.
Background technology
For meeting the requirement of modernization combat duty, model is more and more universal for the requirement of night viewing compatible.This means that present generation aircraft is more and more higher for the requirement of the aspect such as human eye accordance of light-emitting block low-light level at night stability, brightness uniformity, light modulation uniformity, dimming curve in light warning system and illuminator.
In order to meet these requirements, current light-emitting block drive circuit is mostly voltage driving mode, light-emitting diode due to different batches has different voltage-brightness relations, causes to meet brightness requirement, the resistance that the light-emitting block for different batches all needs artificial coupling corresponding with it.This mode have impact on production efficiency greatly, and accuracy rate is not high, can not meet model demand.
To sum up, for meeting the requirement of model to light-emitting block brightness, we are necessary to improve light-emitting block type of drive, to enhance productivity, to optimize dimming effect.
Summary of the invention
An object of the present invention is to provide a kind of light-emitting block intelligent driver module, have that parameter is configurable, high accuracy, dimming curve meet human eye characteristic, modularization, microminiaturized feature.
To achieve these goals, technical scheme of the present invention is as follows: a kind of light-emitting block intelligent driver module, comprises codes selection circuit, reads the pulse code of non-essential resistance, and the duty cycle signals producing corresponding pulses signal outputs to pulse-generating circuit; Brightness fine adjustment signal acquisition module, for gathering the dimmer voltage that light adjusting potentiometer exports, and exports to pulse-generating circuit; Pulse-generating circuit, for receiving interface circuit transmit day/night brightness transition signal, the signal that transmits of the mode of operation signal of selecting signal, brightness fine adjustment signal Acquisition Circuit to transmit and codes selection circuit, then export corresponding control impuls; Output driving circuit, the control impuls for being exported by pulse-generating circuit is enlarged into the drive singal of light-emitting block, thus drives light-emitting block to light at different brightnesses.
Another object of the present invention is to provide a kind of driving method of light-emitting block intelligent driver module, has that parameter is configurable, high accuracy, dimming curve meet human eye characteristic, modularization, a microminiaturized feature.
To achieve these goals, technical scheme of the present invention is as follows: a kind of driving method of light-emitting block intelligent driver module, it is characterized in that the method comprises: gather the pulse code from codes selection circuit, export corresponding control impuls according to pulse code and export; When receiving the brightness regulation voltage that brightness fine adjustment signal Acquisition Circuit transmits, according to the height of dimmer voltage, the duty ratio that regulable control pulse exports; When receiving mode of operation and selecting signal, the way of output of switching controls pulse, when mode of operation selects signal to be high, regulates light-emitting block brightness by potentiometer, when mode of operation selects signal to be low, light-emitting block only have day/night two kinds of operating states; When receive day/brightness transition signal at night time, control module export day/night state under the pulse of different duty, export light-emitting block scintillation pulse as required, control light-emitting block with the frequency scintillation of 2 ~ 4Hz.
Its main operational principle is the pulse coded information being read bits of coded by single-chip microcomputer, finds corresponding bright pulse data, the square wave (PWM) adjustable by single-chip microcomputer output pulse width in the holder carried, and controls drive circuit and lights light-emitting block.Light-emitting block due to different batches has different brightness curves, therefore saves various levels of brightness pulse data accordingly in holder, and each bright pulse data are identified by unique coding.Operating personnel only need configuring external hardware encoding, can complete the luminous intensity distribution work of different batches light-emitting block easily.
The present invention is the novel light-emitting block driver module based on singlechip technology, Analog Electronics Technique, by the mode of exterior arrangement parameter, with the light-emitting block brightness of High-Accuracy PWM Pulse Width Control and working method.It by analog quantity light modulation acquisition technique, High-Accuracy PWM control technology, meet human eye characteristic dimming curve technology, constant-current drive technology etc. based on, realize to all kinds of light-emitting block brightness fixing quantity, brightness linear fine setting, day/night brightness transition, the function such as luminous element alarm flicker, and when using, above-mentioned functions all need not online programming, by carrying out coding and configurable parameters to the hardware encoding interface of module.The present invention can be used for aircraft light warning system and illuminator.
Advantage of the present invention has:
1) highly versatile: select corresponding light distribution scheme by hardware encoding, the brilliance control having realized all kinds of light-emitting block meets model requirement.；
2) human eye characteristic is met: inside modules is provided with the exponential type dimming curve meeting human eye characteristic, ensure that light modulation uniformity, comfortableness;
3) modularization: whole drive circuit system has the complete circuit structure such as signal transacting, signal drive amplification.Module self is a processing unit, only need be installed in printed board by contact pin, socket during use;
4) microminiaturized: the most devices in module uses paster encapsulation, and integrated level is high, and volume is little.
Accompanying drawing explanation
Fig. 1 is light-emitting block intelligent driver module theory diagram of the present invention.
Fig. 2 is light-emitting block intelligent driver module control signal of the present invention and control impuls output relation.
Fig. 3 is light-emitting block intelligent driver module software function module figure of the present invention.
Below in conjunction with drawings and Examples, the present invention is elaborated.
Embodiment
The effect of light-emitting block intelligent driver module drives light-emitting block by the square wave that output duty cycle is adjustable, thus substitute original voltage driving mode.The circuit of module can be divided into five major parts according to the difference of practical function, is respectively:
A) pulse-generating circuit;
B) codes selection circuit;
C) output driving circuit;
D) brightness fine adjustment signal Acquisition Circuit;
E) interface circuit.
Embodiment is as described below:
Interface circuit for receiving various driving and control signal, comprise that 5V/15V powers, brightness fine adjustment signal, day/night brightness transition signal, mode of operation selects scintillation pulse and the brightness regulation pulse of signal, pulse code signal, light-emitting block.Interface circuit is made up of 3 single contact pins, summarizes whole interfaces that module is external, comprises circuit interface, control interface, codes selection interface and driver output interface.
The function of each signal is as follows:
1) 15V powers: for brightness fine adjustment signal Acquisition Circuit, output driving circuit are powered.
2) 5V powers: for codes selection circuit, pulse-generating circuit are powered.
3) potentiometer signal: export from external potentiometer, amplitude is the voltage signal of (0 ~ 5) V, for changing the duty ratio of brightness regulation pulse, realizes brightness fine adjustment function.
4) day/night brightness transition signal: the ground/ON signal exported from external push-button switch, can control brightness regulation pulse export day/night state under different duty pulse, realize the function of brightness transition.
5) mode of operation selects the control signal that signal exports from lamp box, when mode of operation selects signal for (being greater than 2.5V) time " height ", by the brightness of potentiometer Signal Regulation light-emitting block, when this signal is " low " (lower than 1.3V), light-emitting block brightness is non-adjustable.
6) pulse code signal: the various default brightness regulation pulse meeting human eye characteristic is stored in pulse-generating circuit in an encoded form, selects the scintillation pulse of corresponding encoded by the mode of welding external circuit.(resistance set is not welded in welding kesistance reset), this signal also by potentiometer signal, day/night brightness transition signal and mode of operation select the control of signal.
7) scintillation pulse: according to client's needs, exports (2 ~ 4) Hz square wave, realizes light-emitting block flashing function.
8) brightness regulation pulse: after receiving pulse code signal, the square wave with different duty exported by pulse-generating circuit, controls light-emitting block brightness.
Codes selection circuit uses 5V to power, and is converted into serial pulses coded message for the parallel pulse coded message inputted by interface circuit.Codes selection circuit is the parallel in serial output circuit be made up of 38 bit shift register.Each shift register has 8 brilliance control pulse code positions (CODE_R0 ~ CODE_R7), can configure 2 by the mode (welding kesistance reset, not welding kesistance set) of the reset of outside weldings resistance or set to pulse-generating circuit
8=256 kinds of brilliance control pulses.Whole codes selection circuit comprises 3 registers, can realize the independent configuration exported 3 tunnel light modulations.
Using pull-up voltage on 15V operating voltage and signal end 5V during the work of brightness fine adjustment signal Acquisition Circuit, for gathering (0 ~ 5) V dimmer voltage that light adjusting potentiometer exports, and exporting to pulse-generating circuit.Brightness fine adjustment signal Acquisition Circuit is made up of operational amplifier and configuration circuit.(0 ~ 5) V dimmer voltage for being exported by light adjusting potentiometer is carried out amplitude limit, is followed, and then the dimmer voltage after amplitude limit is outputted to pulse-generating circuit.
The operating voltage of pulse-generating circuit is 5V, for receiving interface circuit transmit day/night brightness transition signal, the pulse code that transmits of the mode of operation potentiometer signal of selecting signal, brightness fine adjustment signal Acquisition Circuit to transmit and codes selection circuit.After the processor in pulse-generating circuit receives above-mentioned control signal, produce the different light-emitting block control impuls of duty ratio, and output to and export drive plate circuit and amplify.Pulse-generating circuit is the control circuit be made up of 8051 single-chip microcomputers, for receiving all kinds of control signals that other circuit export, then exports corresponding control impuls.
Output driving circuit is used for the drive singal control impuls that pulse-generating circuit exports being enlarged into light-emitting block, thus drives light-emitting block to light at different brightnesses.Output driving circuit is made up of three triodes, each triode for strengthening a road control wave, to control external drive circuit.
The embodiment of pulse-generating circuit is as described below:
Light-emitting block intelligent driver module software (hereinafter referred to as " software ") resides in 8051 single-chip microcomputers on pulse-generating circuit, for receiving the control signal that other circuit export, exports light-emitting block control impuls after Logic judgment.
The major function of pulse-generating circuit is:
1) gather the pulse code from codes selection circuit, according to the mode of pulse code by " tabling look-up ", export corresponding control impuls and export;
2) when receiving the brightness regulation voltage that brightness fine adjustment signal Acquisition Circuit transmits, according to the height of dimmer voltage, the duty ratio that regulable control pulse exports;
3) when receiving mode of operation and selecting signal, the way of output of switching controls pulse.When mode of operation selects signal to be high, regulate light-emitting block brightness by potentiometer, when mode of operation selects signal to be low, light-emitting block only have day/night two kinds of operating states;
4) when receive day/brightness transition signal at night time, control module export day/night state under the pulse of different duty;
5) light-emitting block scintillation pulse can be exported as required, control light-emitting block with the frequency scintillation of (2 ~ 4) Hz.
Software kit is containing six functional modules, and title and the function description of each functional module are as follows:
1) pulse code selects module: the pulse code reading non-essential resistance, the mode of " being tabled look-up " by software searches the duty ratio of corresponding pulses signal.
2) brightness regulation voltage acquisition module: the analog to digital converter in software module reads the dimmer voltage of bulk potential device, is converted to digital signal, thus realizes the fine setting of pulse signal duty ratio.
3) mode of operation selects module: read work mode select signal, when mode of operation selects signal to be high, regulates light-emitting block brightness by potentiometer, when mode of operation selects signal to be low, light-emitting block only have day/night two kinds of operating states.
4) day/night brightness transition module: read day/night brightness transition signal, make the duty ratio of output pulse signal present day/night two states.
5) control impuls output module: read the duty cycle information that pulse code selects module to transmit, the mode counted by software exports the control impuls of corresponding duty ratio, when receiving the signal that brightness regulation voltage acquisition module transmits, the fine setting of output duty cycle can be realized; When receiving the signal that mode of operation selects module to transmit, enable luma regulatory function; When receive day/signal that night, brightness transition module transmitted time, can switch day/night state under, the control impuls of different duty.
6) scintillation pulse output module: the mode counted by software is produced duty ratio and is
1:1, frequency are the square wave of (2 ~ 4) Hz, for meeting the flicker demand of light-emitting block.
In order to increase the general applicability of light-emitting block intelligent driver module, be also designed with brightness fine adjustment function, brightness transition function and alarm flashing function in module, these functions are all based on High-Accuracy PWM ripple, and the controlling functions of single-chip microcomputer realizes in addition.
Light-emitting block intelligent driver module of the present invention achieves:
1) adjustable pulse width square wave drives light-emitting block function:
Brilliance control pulse output duty cycle is
~
, precision can reach 1 ‰;
Maximum load capability: module has 3 independently loading interfaces, can drive redness, yellow, green emitting block simultaneously, also can drive homochromy light-emitting block;
Each interface maximum load voltage: 60 VDC;
Each interface maximum load current: 0.5 A.
Amounting to each interface can drive about 33 signal lamps to work under highlighted state simultaneously.
2) brightness transition function, can receive brightness transition signal, and the duty ratio of switching controls pulse realizes light-emitting block brightness transition.
3) brightness fine adjustment function, can receive light adjusting potentiometer signal, finely tunes the brightness of light-emitting block.
4) light-emitting block flashing function, light-emitting block scintillation pulse duty ratio is 50%, frequency is (2 ~ 4) Hz.
Claims (2)
1. a light-emitting block intelligent driver module, comprises codes selection circuit, reads the pulse code of non-essential resistance, and the duty cycle signals producing corresponding pulses signal outputs to pulse-generating circuit; Brightness fine adjustment signal acquisition module, for gathering the dimmer voltage that light adjusting potentiometer exports, and exports to pulse-generating circuit; Pulse-generating circuit, for receiving interface circuit transmit day/night brightness transition signal, the signal that transmits of the mode of operation signal of selecting signal, brightness fine adjustment signal Acquisition Circuit to transmit and codes selection circuit, then export corresponding control impuls; Output driving circuit, the control impuls for being exported by pulse-generating circuit is enlarged into the drive singal of light-emitting block, thus drives light-emitting block to light at different brightnesses.
2. a driving method for light-emitting block intelligent driver module, is characterized in that the method comprises: gather the pulse code from codes selection circuit, exports corresponding control impuls export according to pulse code; When receiving the brightness regulation voltage that brightness fine adjustment signal Acquisition Circuit transmits, according to the height of dimmer voltage, the duty ratio that regulable control pulse exports; When receiving mode of operation and selecting signal, the way of output of switching controls pulse, when mode of operation selects signal to be high, regulates light-emitting block brightness by potentiometer, when mode of operation selects signal to be low, light-emitting block only have day/night two kinds of operating states; When receive day/brightness transition signal at night time, control module export day/night state under the pulse of different duty, export light-emitting block scintillation pulse as required, control light-emitting block with the frequency scintillation of 2 ~ 4Hz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310588543.5A CN104661376A (en) | 2013-11-21 | 2013-11-21 | Intelligent driving module of luminous block and driving method of driving module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310588543.5A CN104661376A (en) | 2013-11-21 | 2013-11-21 | Intelligent driving module of luminous block and driving method of driving module |
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| CN104661376A true CN104661376A (en) | 2015-05-27 |
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| CN201310588543.5A Pending CN104661376A (en) | 2013-11-21 | 2013-11-21 | Intelligent driving module of luminous block and driving method of driving module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106793260A (en) * | 2016-11-30 | 2017-05-31 | 中国直升机设计研究所 | It is a kind of to operate and control integrated flight lighting system |
| CN106802109A (en) * | 2017-02-17 | 2017-06-06 | 中国人民解放军军械工程学院 | Terminal-guided shell detects bullet photodetector simulation signal generator |
| CN113905476A (en) * | 2021-10-28 | 2022-01-07 | 上海艾为电子技术股份有限公司 | Exponential dimming method, mapping circuit, dimming circuit and electronic equipment |
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| CN201682660U (en) * | 2010-03-15 | 2010-12-22 | 蔡建平 | Electrodeless dimming control circuit for desk lamp |
| CN202019479U (en) * | 2011-01-25 | 2011-10-26 | 武汉光华芯科技有限公司 | Novel single line cascade light-emitting diode (LED) driver integrated circuit |
| GB2499684A (en) * | 2012-02-23 | 2013-08-28 | Zhaowei Zhen | PFM-based LED illuminator and light network |
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2013
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367353A (en) * | 2007-08-14 | 2009-02-18 | 比亚迪股份有限公司 | Apparatus and method for governing display lightness of automobile instrument |
| CN201682660U (en) * | 2010-03-15 | 2010-12-22 | 蔡建平 | Electrodeless dimming control circuit for desk lamp |
| CN202019479U (en) * | 2011-01-25 | 2011-10-26 | 武汉光华芯科技有限公司 | Novel single line cascade light-emitting diode (LED) driver integrated circuit |
| GB2499684A (en) * | 2012-02-23 | 2013-08-28 | Zhaowei Zhen | PFM-based LED illuminator and light network |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793260A (en) * | 2016-11-30 | 2017-05-31 | 中国直升机设计研究所 | It is a kind of to operate and control integrated flight lighting system |
| CN106802109A (en) * | 2017-02-17 | 2017-06-06 | 中国人民解放军军械工程学院 | Terminal-guided shell detects bullet photodetector simulation signal generator |
| CN113905476A (en) * | 2021-10-28 | 2022-01-07 | 上海艾为电子技术股份有限公司 | Exponential dimming method, mapping circuit, dimming circuit and electronic equipment |
| CN113905476B (en) * | 2021-10-28 | 2024-02-02 | 上海艾为电子技术股份有限公司 | Index dimming method, mapping circuit, dimming circuit and electronic equipment |
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Application publication date: 20150527 |
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