CN204217159U - A kind of electrodeless intelligent dimming LED lamp system with Radio Control Function - Google Patents
A kind of electrodeless intelligent dimming LED lamp system with Radio Control Function Download PDFInfo
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- CN204217159U CN204217159U CN201420302199.9U CN201420302199U CN204217159U CN 204217159 U CN204217159 U CN 204217159U CN 201420302199 U CN201420302199 U CN 201420302199U CN 204217159 U CN204217159 U CN 204217159U
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- electrodeless
- intelligent dimming
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- led 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 kind of electrodeless intelligent dimming LED lamp system with Radio Control Function, comprises wifi module, electrodeless intelligent dimming MCU control module and LED constant current source drive IC module.Wifi module can wireless receiving flat board, mobile phone, panel instruction, and adopt the data transfer mode of UART generic asynchronous serial mouth to send electrodeless intelligent dimming MCU control module to, electrodeless intelligent dimming MCU control module exports corresponding PWM Waveform Control LED constant current source drive IC module according to instruction, thus constant-current source IC can control the change of LED brightness according to corresponding average current value, and this system is according to corresponding algorithm realization PWM stepless dimming, make the change of light very soft, flicker, ladder sense can not be there is.This system is the variation of a kind of input signal, good, the output illumination hommization of light source controllability, stepless intelligent dimming LED lamp system that energy-saving efficiency is high.
Description
Technical field
The utility model relates to the technical field of LED lamp drive circuit, particularly a kind of electrodeless intelligent dimming LED lamp system with Radio Control Function.
Background technology
LED has been widely used in the various aspects in people's daily life, and it has the advantages such as energy-saving and environmental protection, the life-span is long, volume is little.Brightness in the market as general lighting LED is nonadjustable, but the ambient brightness of workbench, the eye fatigue of human body is had a great impact, work under unaccommodated brightness, study, can increase the burden of eyes, may cause vision impairment for a long time.Although there is the product of a lot of intelligent lighting controls in the market, most of system is all want rewiring, when cannot not change traditional wiring more completely, realizes Based Intelligent Control and the management of LED illumination.
Utility model content
The purpose of this utility model is that the shortcoming overcoming prior art is with not enough, provides a kind of electrodeless intelligent dimming LED lamp system with Radio Control Function.
The purpose of this utility model is achieved through the following technical solutions:
With an electrodeless intelligent dimming LED lamp system for Radio Control Function, comprise wifi module, electrodeless intelligent dimming MCU control module and LED constant current source drive IC module; Described wifi module can wireless receiving flat board, mobile phone, panel instruction, and adopt the data transfer mode of serial port protocol to send described electrodeless intelligent dimming MCU control module to; Described electrodeless intelligent dimming MCU control module exports the LED constant current source drive IC module described in corresponding PWM Waveform Control according to instruction; Described LED constant current source drive IC module can control the change of LED brightness according to corresponding average current value, realize PWM stepless dimming.
Preferably, described wifi module comprises chip AR9331, DDR chips W 9425G6JH-5 and FLASH chip S25FL032.
Preferably, described electrodeless intelligent dimming MCU control module comprises enhancement mode STC12C5608AD single-chip microcomputer, reset circuit, crystal oscillating circuit and indicator light circuit.
Preferably, described LED constant current source drive IC module adopts SD42524 model LED driver IC circuits.
Preferably, described system has memory function, when there being instruction to arrive, first control color change, and instruction is left in the EEPROM of enhancement mode STC12C5608AD single-chip microcomputer inside, thus when power was lost and from when newly powering on, the instruction that system can read in EEPROM controls, automatically reply the state of power down headlight.
Preferably, described external command is from panel computer, mobile phone or control panel.
Preferably, described wifi module sends the external command of wireless receiving to described electrodeless intelligent dimming MCU control module by the serial port protocol data transfer mode of UART universal asynchronous receiving-transmitting transmitter.
The utility model has following advantage and effect relative to prior art:
1) this system is according to corresponding algorithm realization PWM stepless dimming, makes the change of light very soft, can not there is flicker, ladder sense.
2) and this system has memory function, when there being instruction to arrive, first according to the brightness of the stepless brilliance light modulation of last time instruction up till now, and instruction is left in the EEPROM of chip internal, thus when power was lost and from when newly powering on, the instruction that system can read in EEPROM controls, and completes the state of power down headlight.
3) this intelligent system is put into colorful bulb, and adopt screw socket interface, product is replaced convenient, control more flexible, this system has meaning to a integrated, systematization of exploitation, controllable toning LED intelligent bulbs external member.
4) this system controls by wifi module intelligent wireless and regulates LED bulb, overcome the shortcomings such as wired control mode cabling is huge, installation difficulty is large, really reach intelligentized control method, achieve the variation of a kind of input signal, good, the output illumination hommization of light source controllability, intelligent stepless LED light adjusting system that energy-saving efficiency is high.
Accompanying drawing explanation
Fig. 1 is the theory structure block diagram of the utility model embodiment.
Fig. 2 is the wifi theory structure block diagram of the utility model embodiment.
Fig. 3 is the electrodeless intelligent dimming MCU control module circuit theory diagrams of the utility model embodiment.
Fig. 4 is the LED constant current source drive IC modular circuit schematic diagram of the utility model embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
PWM is the english abbreviation of pulse width modulation, refers to the ratio in one-period shared by lighting time.This cycle is very short or say that frequency is very high, at least will exceed the photosensitive reaction speed of human eye.Driven by external PWM signal to carry out light modulation to LED, refer to and adjust the method for average perceived brightness by the go out ratio of time of adjustment lamp bright time and lamp.In small timeslice, lamp is standard-sized sheet or is complete shut-down, does not have half-open intermediateness.PWM light modulation can be stepping, also can be stepless, and the wherein electrodeless meaning refers to continually varying instead of transition formula or stepping.Single-chip microcomputer 8 PWM can realize entirely low, overall height level and duty ratio from the PWM waveform of 1/256-255/256, and the brightness that we set lamp is when being 100 grade, if the just simple PWM value calculating each brightness with 255/100, the light recalled like this has flicker and gradient sense is very strong, brightness and the PWM value of LED are not linear relations, according to PWM=
algorithm calculate PWM value, wherein X is brightness value.And pacify brightness subregion in a program, below 30% brightness, light modulation controls different from more than 30% dimming time, the light recalled like this is very soft and do not have ladder sense.
As shown in Figure 1, a kind of electrodeless intelligent dimming LED lamp system with Radio Control Function, this system comprises wifi module, electrodeless intelligent dimming MCU control module and LED constant current source drive IC module.
Wifi module can wireless receiving flat board, mobile phone, panel instruction, and adopt the data transfer mode of UART generic asynchronous serial mouth to send electrodeless intelligent dimming MCU control module to, electrodeless intelligent dimming MCU control module exports corresponding PWM Waveform Control LED constant current source drive IC module according to instruction, thus constant-current source IC can control the change of LED brightness according to corresponding average current value, and this system is according to corresponding algorithm realization PWM stepless dimming, make the change of light very soft, flicker, ladder sense can not be there is.And this system has memory function, when there being instruction to arrive, first according to the brightness of the stepless brilliance light modulation of last time instruction up till now, and instruction is left in the EEPROM of chip internal, thus when power was lost and from when newly powering on, the instruction that system can read in EEPROM controls, and completes the state of power down headlight.
As shown in Figure 2, wifi module produces chip AR9331, DDR chips W 9425G6JH-5 and the FLASH chip S25FL032 composition of highly integrated master control and radio communication function.AR9331 is mainly used in WLAN (wireless local area network) and router platform, complete compatible IEEE 802.11n 1 × 1 wireless communication standard and router feature on a single die, the MIPS of processor 24K reaches as high as the processing speed of 400MHZ, there is the external interface of DDR1, DDR2, SDRAM of 16, support that SPI and NOR FLASH communicates, 4 LAN mouths and 1 WAN mouth, UART at a high speed, I2S/SPDIF audio output interface, supports USB2.0 interface, 25M or 40M reference clock inputs.Wifi module is not only to realize radio communication, and it realizes being combined with lower floor control module according to communication protocol realizing multiple intelligentized control method just as wireless router.
As shown in Figure 3, electrodeless intelligent dimming MCU control module circuit comprises: enhancement mode STC12C5608AD single-chip microcomputer, reset circuit, crystal oscillating circuit, indicator light circuit.
Wherein enhancement mode STC12C5608AD single-chip microcomputer is the single-chip microcomputer of single clock/machine phase (1T) that STC produces, superpower jamproof 8051 single-chip microcomputers of new generation of high speed/low-power consumption, 8051 single-chip microcomputers that instruction code is completely compatible traditional, but the fast 8-12 of speed doubly, stable performance, is applicable to strongly disturbing occasion.This single-chip microcomputer operating voltage is 5V, user application space 8K byte, integrated 768 byte RAM on sheet, EEPROM function in chip, has high speed SPI (Serial Peripheral Interface: Serial Peripheral Interface (SPI)) and UART (Universal Asynchronous Receiver Transmitter: UART Universal Asynchronous Receiver Transmitter).Corresponding chip 6,7 pin of chip exterior input end of clock mouth XTAL1, XTAL2, be connected to external crystal-controlled oscillation Y1 between two ports, crystal oscillator frequency is 11.0592MHz, and port x TAL1, XTAL2 connect ground capacity C5, C6 respectively, and capacitance size is 30PF.
Wherein P2 interface is power interface, the 14 pin GND ports of the corresponding single-chip microcomputer STC12C5608AD of P2 interface 1 pin, the 28 pin VCC ports of the corresponding single-chip microcomputer STC12C5608AD of P2 interface 2 pin; The 4 pin P3.0/RXD ports of the corresponding single-chip microcomputer STC12C5608AD of P6 interface 3 pin, the 5 pin P3.1/TXD ports of the corresponding single-chip microcomputer STC12C5608AD of P6 interface 2 pin, P6 interface 1 pin meets VCC_3.3V, 4 pin ground connection, and P6 interface is and wifi module communication interface and Single Chip Microcomputer (SCM) program programming interface; P4 interface 1 pin meets VCC_5V, P4 interface 3 pin ground connection, the 15 pin P2.6 ports of the corresponding single-chip microcomputer STC12C5608AD of P4 interface 2 pin, P4 interface is for detecting wifi module GPIO high level interface, whether the condition selecting according to port P2.6 sets up communication link with wifi module, and this link adopts the data transfer mode of UART generic asynchronous serial mouth.
Wherein the 28 pin VCC ports of single-chip microcomputer STC12C5608AD are power ports, and by connecting 1k resistance R31 and light-emitting diode D6 ground connection, D6 is as power supply indicator.The 3 pin RST ports of single-chip microcomputer STC12C5608AD are reseting port, this port by ground connection after connecting with 10k resistance R1, simultaneously by connect the composition reset circuit that is connected with input VCC_5V afterwards with 10uF electric capacity C7.
During system electrification, program initialization is complete, and port P2.0 corresponding to 26 pin reading the lamp control data of power down last time and inquiry single-chip microcomputer STC12C5608AD is to judge that this lamp is RGB lamp or common desk lamp with dimmer switch, the PWM_LGT signal sent by the port PWM0 that 17 pin of single-chip microcomputer STC12C5608AD are corresponding carrys out driving LED constant-current source drive IC.And select whether set up communication link with wifi module by the single-chip microcomputer STC12C5608AD port P2.6 level state that inquiry P2 interface is corresponding, thus send lamp kind of information and last time power-down state wait for that client transmits new data control from flat board, mobile phone, control panel to wifi module.
LED constant current source drive IC module adopts SD42524 LED driver IC circuits, specifically as shown in Figure 4.The LED drive chip that SD42524 is voltage-dropping type, PWM controls, power switch is built-in, and adopt Controlled in Current Mode and Based, current-mode can provide transient response fast, and loop stability simplicity of design, circuit efficiency is high.When input/output voltage changes, full voltage range output current controls within ± 1%.The PWM_LGT signal that the port PWM0 that 17 pin of single-chip microcomputer STC12C5608AD are corresponding sends receives the 6 pin PWM port of chip SD42524, control the time that driving chip normally works and turns off, thus regulate the size of the average current of LED, output current is synchronous with external PWM signal, the switch of external PWM signal can the break-make of electric current on control LED, namely the peak value size of output current can change, and the electric current on LED is when outside PWM controls to open, electric current on LED normally exports, when outside PWM controls to turn off, not output current on LED, like this by controlling the duty ratio of pwm signal, realize dimming function, when needs use PWM dimming function, need 7 pin and 8 pin of short circuit chip SD42524.Output current size is determined by the magnitude of voltage of sampling resistor R26 and setting, constant current mode lamp complete bright time chip sample voltage value be V
vIN_LED-V
lED+(i.e. the voltage at R26 two ends) is 88mv.By the size adjustment of regulating resistance R26 complete bright time output current, i.e. Iout=(V
vIN_LED-V
lED+)/R26
.input capacitance C12 is capacitor discharge when INTRA-CHIP POWER pipe ends, and during power tube conducting, power supply is to capacitor charging, keeps the stability of input voltage thus, thus better can reduce the peak current of input source extraction and reduce input switch noise.At LED two ends, an output capacitance C13 in parallel can reduce output voltage ripple, thus reduces the ripple current of LED.Inductance L 1, for maintaining current constant, provides afterflow under the state that diode D1 ends at internal power pipe.
The 1 foot mouth SW of chip SD42524 is switch pin, is connected to one end of external inductors L1 and the positive pole of diode D1.LED-port that 2 pin of the external inductors L1 other end respectively connecting interface P7 are corresponding, the LED+ port that 1 pin of interface P7 is corresponding is connected with the 3 pin SENSE ports of chip SD42524, and interface P7 provides stable LED constant current source driver output.The negative pole of diode D1 is connected to port VIN_LED corresponding to 2 pin of interface P1, the 1 pin ground connection of interface P1.Wherein, port VIN_LED is connected with port LED+ by R26.The 4 foot mouth VIN of chip SD42524 are connected with the negative pole of diode D1, and by 47uF electric capacity C12 ground connection, this port VIN is also connected by 10uF electric capacity C13 and LED-port.
Above-described embodiment is the utility model preferably execution mode; but execution mode of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection range of the present utility model.
Claims (7)
1. with an electrodeless intelligent dimming LED lamp system for Radio Control Function, it is characterized in that: comprise wifi module, electrodeless intelligent dimming MCU control module and LED constant current source drive IC module;
Described wifi module can wireless receiving external command, then instruction is sent to electrodeless intelligent dimming MCU control module;
Described electrodeless intelligent dimming MCU control module exports the LED constant current source drive IC module described in corresponding PWM Waveform Control according to instruction;
Described LED constant current source drive IC module can control the change of LED brightness according to corresponding average current value, realize PWM stepless dimming.
2. the electrodeless intelligent dimming LED lamp system with Radio Control Function according to claim 1, is characterized in that: described wifi module comprises chip AR9331, DDR chips W 9425G6JH-5 and FLASH chip S25FL032.
3. the electrodeless intelligent dimming LED lamp system with Radio Control Function according to claim 1, is characterized in that: described electrodeless intelligent dimming MCU control module comprises enhancement mode STC12C5608AD single-chip microcomputer, reset circuit, crystal oscillating circuit and indicator light circuit.
4. the electrodeless intelligent dimming LED lamp system with Radio Control Function according to claim 1, is characterized in that: described LED constant current source drive IC module adopts SD42524 model LED driver IC circuits.
5. the electrodeless intelligent dimming LED lamp system with Radio Control Function according to claim 3, it is characterized in that: described system has memory function, when there being instruction to arrive, first control color change, and instruction is left in the EEPROM of enhancement mode STC12C5608AD single-chip microcomputer inside, thus when power was lost and from when newly powering on, the instruction that system can read in EEPROM controls, automatically reply the state of power down headlight.
6. the electrodeless intelligent dimming LED lamp system with Radio Control Function according to claim 1, is characterized in that: described external command is from panel computer, mobile phone or control panel.
7. the electrodeless intelligent dimming LED lamp system with Radio Control Function according to the arbitrary claim of claim 1 to 6, is characterized in that: described wifi module sends the external command of wireless receiving to described electrodeless intelligent dimming MCU control module by the serial port protocol data transfer mode of UART universal asynchronous receiving-transmitting transmitter.
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|---|---|---|---|
| CN201420302199.9U CN204217159U (en) | 2014-06-09 | 2014-06-09 | A kind of electrodeless intelligent dimming LED lamp system with Radio Control Function |
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| CN201420302199.9U CN204217159U (en) | 2014-06-09 | 2014-06-09 | A kind of electrodeless intelligent dimming LED lamp system with Radio Control Function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717806A (en) * | 2015-03-20 | 2015-06-17 | 北京科睿兆明光电科技有限公司 | Method for adjusting light and colors of LED lamp and light and color adjustable LED lamp system |
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2014
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717806A (en) * | 2015-03-20 | 2015-06-17 | 北京科睿兆明光电科技有限公司 | Method for adjusting light and colors of LED lamp and light and color adjustable LED lamp system |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20200609 |
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| CF01 | Termination of patent right due to non-payment of annual fee |