CN105065317B - Automatic frequency adjustment fan and control method thereof - Google Patents
Automatic frequency adjustment fan and control method thereof Download PDFInfo
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Abstract
Provided are an automatic frequency adjustment fan and a control method thereof. A single chip microcomputer acquires and processes indoor temperature and illumination intensity and outputs the frequencies of duty ratios corresponding to the indoor temperature and the illumination intensity acquired at the moment to a collector electrode of an optical coupler by utilizing a PWM output function inside the single chip microcomputer, and one end of the collector electrode of the optical coupler is connected with a driving signal input end of a motor so as to achieve motor speed control. One lead pin of the single chip microcomputer is connected with a transmitting tube of the optical coupler, high and low levels corresponding to the indoor temperature and the illumination intensity acquired at the moment, the delay time of the high level and the delay time of the low level are output through the pin, and further adjustment and control of the stalling frequency of the motor are achieved. A user can set various parameters through client-side software of a mobile phone and a computer and design a sleep curve suitable for himself/herself, can upload the sleep curve designed by himself/herself to a client platform through cloud services and can download sleep curves shared by others through the client platform as well.
Description
Technical field
The present invention relates to a kind of electric fan, particularly a kind of automatic frequency adjustment fan and its control method.
Background technology
In the industry cycle, all it is to be realized by soft-touch control or key switch with staff to the regulation of retation speed of electric fan.Such as
No. 201110442743.0 patents of Application No., disclose a kind of direct-current brushless electric fan and its control method：User passes through
Adjustment encoder knob produces action signal, and single-chip microcomputer is necessarily accounted for exporting after the knob signal analysis and processing after receiving the signal
Sky is than constant frequency to DC brushless motor.User needs manually to adjust encoder to adjust fan wind speed, adjusts fiber crops
Tired, the motor speed after adjustment can not change with the change of the temperature of surrounding and intensity of illumination with stalling frequency.Such as exist
When summer uses, user initially sets a comfortable wind speed, and when indoor temperature change is larger, the speed of initial setting is no longer
Change, user will also go to adjust wind speed, adjustment trouble again.When using in day and night sleep, the body of people is not in
Same active state, fan are unable to adjust automatically and export different wind speed and stalling frequency to adapt to human body, and user is using easypro
Appropriateness is poor.
The content of the invention
For the not enough and defect of above technology, the purpose of the present invention aims to provide a kind of simple to operate, is easy to promote, relaxes
The strong fan of appropriateness.
The purpose of the present invention is by employing the following technical solutions realization：By a kind of automatic frequency adjustment of this purpose design
Fan, its circuit feature, including intensity of illumination Acquisition Circuit unit, temperature collection circuit unit, optocoupler regulation and control frequency circuit list
Unit, motor-drive circuit unit, touch induction circuit unit, OLED display circuit units, WiFi and bluetooth communication circuit list
Unit, alarm circuit unit, memory expansion circuit unit, power circuit and electric fan.
The intensity of illumination Acquisition Circuit unit, single-chip microcomputer are connected with intensity of illumination sensor, can be by photoconductive resistance
AD values be acquired process.
The temperature collection circuit unit, single-chip microcomputer are acquired and are processed to the temperature data of surrounding by DS18B20.
The optocoupler regulates and controls frequency circuit unit, and programmable single chip computer is by indoor temperature and intensity of illumination data letter
Breath is acquired and processes, by the PWM output functions output inside single-chip microcomputer and the temperature and intensity of illumination phase for now gathering
Colelctor electrode of the frequency of corresponding dutycycle to optocoupler, emitter stage one end of optocoupler are connected to motor drive signal input, from
And realize the control to motor speed；One pin of single-chip microcomputer is connected to the transmitting tube of optocoupler, by this pin export with
The temperature that now the gathers low and high level corresponding with intensity of illumination and high level delay time and low level delay time enter
And realize stalling motor the regulation and control of frequency, it is achieved thereby that the independent regulation and control of frequency and speed are stalled to motor.
Four curves are simulated by founding mathematical models, first is respectively under daytime and nighttime conditions with Article 2,
PWM curves of output corresponding to different temperature, Article 3 and Article 4 were respectively under daytime and nighttime conditions, different temperature
The corresponding motor stalling frequency curve of degree.When indoor illumination intensity and temperature change, the speed and stalling frequency of motor are done
Go out corresponding adjustment, when intensity of illumination and it is temperature-resistant when, speed and the stalling frequency of motor are will stabilise in certain scope,
The different motor speed of correspondence and motor stalling frequency under conditions of different intensities of illumination and different temperatures are realized, from
And realize automatic frequency adjustment and automatic speed regulation.
The motor-drive circuit unit, when single-chip microcomputer produce the frequency of certain dutycycle to optocoupler colelctor electrode when, such as
The transmitting tube transmitting light of fruit optocoupler, then the collector and emitter conducting of optocoupler, now monolithic function is by certain dutycycle
Frequency is input to motor-driven frequency input, and motor-drive circuit work, motor are run by certain rotating speed；When optocoupler
Transmitting tube does not launch light, then the collector and emitter cut-off of optocoupler, and the frequency of certain dutycycle that single-chip microcomputer is produced can not
Motor-driven frequency input is input to, motor-drive circuit quits work, motor stalling.One pin connection of single-chip microcomputer
The transmitting tube of optocoupler, low and high level and high level delay time and low level delay time are exported further by this pin
Realize stalling motor the adjustment of frequency；It is when the transmitting tube transmitting light of optocoupler, when the collector and emitter of optocoupler is turned on, single
The frequency of different duty can be delivered to electricity by colelctor electrode of the frequency of piece machine output different duty to optocoupler, the emitter stage of optocoupler
The frequency input that machine drives, so as to motor drive ic exports different power to motor, so as to realize to the electrodeless of motor
Speed governing.
Four kinds of mode of operations：
General mode, can only touch to regulate and control motor speed by staff, it is impossible to which the stalling frequency of motor is adjusted
Control.
Hopping pattern：The temperature that gathered and illumination intensity information are processed according to single-chip microcomputer, adjust automatically motor
Stalling frequency, can touch regulation and control motor speed by staff.
Intelligent mode：The temperature that gathered and illumination intensity information are processed according to single-chip microcomputer, adjust automatically motor
Speed and motor stalling frequency, it is impossible to which regulation and control motor speed is touched by staff.
Sleep pattern：By setting up time shafts, i.e., the motor speed for setting in different moment correspondence systems and motor
Stalling frequency, it is impossible to adjustment motor speed is touched by staff and motor stalls frequency.
Mobile phone, computer client software can be with the hardware resources inside calling mobile phone, computer, by the various of interior of mobile phone
Sensor can be realized stalling timing, motor speed and motor the quick setting of frequency, by WiFi or Bluetooth communication
The parameter information of setting is sent to into automatic frequency adjustment fan.
User can pass through mobile phone and computer client software arranges various parameters, and design is adapted to the sleep curve of oneself,
Self-designed sleep curve can be uploaded to client platform by cloud service, same user can be by under client platform
The sleep curve that other people share is carried, after user downloads, mobile phone, computer terminal can pass through WiFi or Bluetooth communication automatically by under program
It is loaded onto automatic frequency adjustment fan.Different geographical, varying environment, different living habit can be set up by client platform and cloud service
The sleep curve library of middle people, user can be experienced various sleep curves and share sleep curve.
It is also possible to pass through client platform and people in different geographical, varying environment, different living habit is set up in cloud service
At daytime and night, the PWM curves of output storehouse corresponding to different temperature, the motor stalling frequency corresponding to different temperature
Curve library, by building client platform, it is possible to use independently shares diversified mode of operation in family.
When human body is in different sleep states（Deep sleep and light sleep）Under, the body of people is enlivened in different
State, in a sleep mode, it should reduce wind speed and the stalling frequency of fan, increase working time of the fan in a cycle
And dwell time, by setting up time shafts, i.e., the motor speed for setting in different moment correspondence systems and motor stalling frequency
Rate, advantageously in the health of human body, the old man poor for body constitution and child are more beneficial.
Infrared tube is provided with the touch induction circuit unit, with AD acquisition functions inside single-chip microcomputer draws
Foot is connected with colelctor electrode one end of infrared tube, for the input to user instruction.
The OLED display circuits unit for timing, indoor temperature, intensity of illumination, fan mode, motor
The information such as velocity of rotation and motor stalling frequency is shown.
The communication that the WiFi and bluetooth communication circuit unit are used between automatic frequency adjustment fan and mobile phone, computer.
The alarm circuit unit includes buzzer, LED light.
The memory expansion circuit unit includes SD card, for the extension to internal memory.
The power pack includes in-line power and externally fed, and in-line power part is powered by lithium battery, outward
Portion's power pack is connected with external power source by conventional mini-USB data line socket or other sockets.
Description of the drawings
Fig. 1 is the logic diagram 1 of the present invention.
Fig. 2 is the logic diagram 2 of the present invention.
Fig. 3 is that optocoupler regulates and controls frequency circuit unit and motor-drive circuit unit schematic diagram.
Fig. 4 is the PWM curves of output under daytime and nighttime conditions, corresponding to different temperature.
Fig. 5 is the motor stalling frequency curve on daytime, corresponding to different temperature.
Fig. 6 is the motor stalling frequency curve at night, corresponding to different temperature.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the present invention.
First embodiment
Referring to Fig. 1 Fig. 6, this electric fan, its circuit feature：Including intensity of illumination Acquisition Circuit unit, temperature acquisition electricity
Road unit, optocoupler regulation and control frequency circuit unit, motor-drive circuit unit, touch induction circuit unit, WiFi and Bluetooth communication
Circuit unit, OLED display circuit units, memory expansion circuit unit, alarm circuit unit, power circuit, electric fan.
Above-mentioned intensity of illumination Acquisition Circuit unit includes that photoconductive resistance RL and resistance RC, photoconductive resistance RL and resistance RC connect
It is connected between VCC and GND, one end of node of RL and RC is connected on the I/O port of single-chip microcomputer.
The intensity of illumination Acquisition Circuit unit, single-chip microcomputer are connected with intensity of illumination sensor, can be by photoconductive resistance
AD values be acquired process obtain interior illumination intensity information.
Said temperature Acquisition Circuit unit is acquired to indoor temperature data by DS18B20 temperature sensors, together
Sample can be acquired to indoor temperature using other temperature sensors.
Infrared tube is provided with the touch induction circuit unit, with AD acquisition functions inside single-chip microcomputer draws
Foot is connected with colelctor electrode one end of infrared tube, for the input to user instruction.
The communication that the WiFi and bluetooth communication circuit unit are used between automatic frequency adjustment fan and mobile phone, computer.
The OLED display circuits unit for timing, indoor temperature, intensity of illumination, fan mode, motor
The information such as velocity of rotation and motor stalling frequency is shown.
The memory expansion circuit unit includes SD card, for the extension to internal memory.
The alarm circuit unit includes buzzer, LED light.
Second embodiment
Referring to Fig. 3：Optocoupler regulation and control frequency circuit unit includes optocoupler U1 and resistance R2, and the transmitting tube negative pole of optocoupler U1 connects
Ground, positive pole are connected with resistance R2, and the other end of resistance R2 is connected with single-chip I/O mouth, the colelctor electrode and single-chip I/O mouth of optocoupler U1
It is connected, emitter stage is connected with Motor drive input.
Referring to Fig. 3：Motor-drive circuit unit includes N-type metal-oxide-semiconductor MOS1, resistance R1, R3, R4, diode DIO1, electric capacity
C1, resistance R3 one end are connected with the emitter stage of optocoupler, and one end is connected with the grid of N-type metal-oxide-semiconductor.
The motor-drive circuit unit, when single-chip microcomputer produce the frequency of certain dutycycle to optocoupler U1 colelctor electrode when,
The transmitting tube transmitting light of optocoupler U1, then the collector and emitter conducting of optocoupler U1, monolithic function is by the frequency of certain dutycycle
Rate is input to motor-driven frequency input R3, and motor-drive circuit work, motor are run by certain rotating speed；Optocoupler U1's
When transmitting tube does not launch light, then the collector and emitter cut-off of optocoupler, the frequency of certain dutycycle that single-chip microcomputer is produced is not
Motor-driven frequency input R3 can be input to, motor-drive circuit quits work, motor stalling.The I/O port and light of single-chip microcomputer
The transmitting tube of coupling U1 is connected, and exports low and high level and high level delay time by this pin and low level delay time enters
And realize stalling motor the adjustment of frequency.
When the transmitting tube transmitting light of optocoupler U1, when the collector and emitter of optocoupler is turned on, single-chip microcomputer output difference is accounted for
The frequency of different duty can be delivered to Motor drive input by colelctor electrode of the frequency of empty ratio to optocoupler U1, the emitter stage of optocoupler U1
End R3, so as to motor-drive circuit exports different power to motor, so that realize the stepless time adjustment to motor.
The optocoupler regulates and controls frequency circuit unit, and programmable single chip computer is by indoor temperature and intensity of illumination data letter
Breath is acquired and processes, by the PWM output functions output inside single-chip microcomputer and the temperature and intensity of illumination phase for now gathering
Colelctor electrode of the frequency of corresponding dutycycle to optocoupler, emitter stage one end of optocoupler are connected to motor drive signal input, from
And realize the control to motor speed；The I/O port of single-chip microcomputer is connected to the transmitting tube of optocoupler, by this pin output and now
The temperature of the collection low and high level corresponding with intensity of illumination and high level delay time and low level delay time and then reality
The adjustment of frequency is stalled to motor now, it is achieved thereby that stalling the independent regulation and control of frequency and speed to motor.
When indoor illumination intensity and temperature change, the speed and stalling frequency of motor could be made that corresponding adjustment, work as light
According to intensity and it is temperature-resistant when, the speed of motor is will stabilise in certain scope with stalling frequency, that is, realize and do not sharing the same light
According to the different motor speeds of correspondence under conditions of intensity and different temperatures and motor stalling frequency, so as to realize automatic frequency adjustment and from
Dynamic speed governing.
3rd embodiment
If Fig. 4 is the PWM curves of output under daytime and nighttime conditions, corresponding to different temperature.
Specific embodiment：Corresponding model is set up by mathematics, speed is divided into into 120 parts, curve 1 is in situation on daytime
Different PWM curves of output corresponding to lower different temperature, thus the different motor speed of correspondence, thus the different wind of correspondence
Speed.Curve 2 is the different PWM curves of output corresponding to different temperature under nighttime conditions, thus the different wind speed of correspondence.
If Fig. 5 is the motor stalling frequency curve on daytime, corresponding to different temperature.
Specific embodiment：Corresponding model is set up by mathematics, curve 1 is motor corresponding work in a cycle
Time, curve 2 are motor corresponding dwell time in a cycle, and setting maximum functional and dwell time are respectively 7 seconds, electric
Variation with temperature is changed by working time and dwell time of the machine in a cycle.For example：When temperature is 30 degree,
In a cycle, motor works 4 seconds and stops 4 seconds, and when temperature change is 38 degree, motor works 4.6 seconds in a cycle, stops
Only 3.5 seconds, thus under different temperature conditionss, the different motor of correspondence stalled frequency.
If Fig. 6 is the motor stalling frequency curve at night, corresponding to different temperature.Specific embodiment：By number
Set up corresponding model, and curve 1 is motor corresponding working time in a cycle, and curve 2 is motor in a cycle
Interior corresponding dwell time, setting maximum functional and dwell time are respectively 13 seconds.Working time of the motor in a cycle
Variation with temperature is changed with dwell time, thus the different motor stalling frequency of correspondence under different temperature conditionss.
Four kinds of mode of operations：General mode：Adjustment motor speed can only be touched by staff, it is impossible to the stalling frequency to motor
Rate is adjusted.
Hopping pattern：The temperature that gathered and illumination intensity information are processed according to single-chip microcomputer, adjust automatically motor
Stalling frequency, can touch regulation and control motor speed by staff.
Intelligent mode：The temperature that gathered and illumination intensity information are processed according to single-chip microcomputer, adjust automatically motor
Speed and motor stalling frequency, it is impossible to which adjustment motor speed is touched by staff.
Sleep pattern：By setting up time shafts, i.e., the motor speed for setting in different moment correspondence systems and motor
Stalling frequency, it is impossible to adjustment motor speed is touched by staff and motor stalls frequency.
Fourth embodiment
Mobile phone, computer client software can be with the hardware resources inside calling mobile phone, computer, by the various of interior of mobile phone
Sensor can be realized stalling timing, motor speed and motor the quick setting of frequency, by WiFi or Bluetooth communication
The parameter information of setting is sent to into automatic frequency adjustment fan.
User can pass through mobile phone and computer client software arranges various parameters, and design is adapted to the sleep curve of oneself,
User can upload self-designed sleep curve to client platform by cloud service, and same user can be held level with both hands by client
Platform downloads the sleep curve that other people share, and after user downloads, mobile phone, computer terminal can pass through WiFi or Bluetooth communication automatically by journey
Sequence is downloaded to automatic frequency adjustment fan.Different geographical, varying environment, different lives can be set up by client platform and cloud service
The sleep curve library of people in custom, user can be experienced various sleep curves and share sleep curve.
It is also possible to pass through client platform and people in different geographical, varying environment, different living habit is set up in cloud service
At daytime and night, the PWM curves of output storehouse corresponding to different temperature, the motor stalling frequency corresponding to different temperature
Curve library, by building client platform, it is possible to use independently shares diversified mode of operation in family.
When human body is in different sleep states（Deep sleep and light sleep）Under, the body of people is enlivened in different
State, in a sleep mode, it should reduce wind speed and the stalling frequency of fan, increase working time of the fan in a cycle
And dwell time, by setting up time shafts, i.e., the motor speed for setting in different moment correspondence systems and motor stalling frequency
Rate, advantageously in the health of human body, the old man poor for body constitution and child are more beneficial.
The foregoing is only presently preferred embodiments of the present invention, not for limit the present invention practical range；It is every according to this
The made equivalence changes of invention and modification, are all covered by the scope of claims of the present invention.
Claims (3)
1. a kind of control method of automatic frequency adjustment fan, it is characterised in that：By simulating four curves, first and Article 2 point
It is not the PWM curves of output corresponding to different temperature under daytime and nighttime conditions, Article 3 and Article 4 are respectively white
Under it and nighttime conditions, the motor stalling frequency curve corresponding to different temperature, single-chip microcomputer is by indoor temperature and light
According to intensity data information and process, by the PWM output functions output inside single-chip microcomputer and the temperature for now gathering
The frequency of the dutycycle corresponding with intensity of illumination to motor drive signal input, so as to realize the control to motor speed；
One pin of single-chip microcomputer is connected to the transmitting tube of optocoupler, is exported and the temperature and intensity of illumination for now gathering by this pin
The tune of corresponding low and high level and high level delay time and low level delay time and then realization to motor stalling frequency
Control, it is achieved thereby that the independent regulation and control of frequency and speed are stalled to motor, when indoor illumination intensity and temperature change, motor
Speed and stalling frequency could be made that corresponding adjustment, when intensity of illumination and it is temperature-resistant when, the speed of motor will with stalling frequency
Stablize in certain scope.
2. the control method of a kind of automatic frequency adjustment fan according to claim 1, it is characterised in that：Can by mobile phone and
Computer client software arranges various parameters, and design is adapted to the sleep curve of oneself, and user can upload oneself by cloud service
The sleep curve of design can download the sleep curve that other people share by client platform to client platform, same user,
After user downloads, mobile phone, computer terminal can pass through WiFi or Bluetooth communication automatically by download program to automatic frequency adjustment fan.
3. the control method of a kind of automatic frequency adjustment fan according to claim 1, it is characterised in that：Client can be passed through
The sleep curve library of people, different temperature institutes in different geographical, varying environment, different living habit are set up in platform and cloud service
Various functions can be experienced in motor stalling frequency curve storehouse corresponding to corresponding PWM curves of output storehouse, different temperature, user
Curve and sharing function curve.
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| CN201510554848.3A CN105065317B (en) | 2015-09-04 | 2015-09-04 | Automatic frequency adjustment fan and control method thereof |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105626565A (en) * | 2015-12-25 | 2016-06-01 | 广东美的环境电器制造有限公司 | Fan control method and control system and fan |
| CN105422497A (en) * | 2015-12-27 | 2016-03-23 | 浩宇天地（天津）科技有限公司 | Intelligent ceiling fan capable of being adjusted automatically |
| CN105650020A (en) * | 2016-02-29 | 2016-06-08 | 广东美的环境电器制造有限公司 | Fan and control system and method for fan |
| CN105822582B (en) * | 2016-04-25 | 2018-11-27 | 广东美的环境电器制造有限公司 | Fan and its control system and method |
| CN105927574A (en) * | 2016-06-06 | 2016-09-07 | 佛山市聚成生化技术研发有限公司 | Intelligent control system of fan |
| CN106593925A (en) * | 2016-11-11 | 2017-04-26 | 合肥龙多电子科技有限公司 | Control system for intelligent fan based on pulse monitoring |
| CN106593926A (en) * | 2016-11-11 | 2017-04-26 | 合肥龙多电子科技有限公司 | Pulse-detection-based control system of intelligent fan capable of walking |
| CN106567848A (en) * | 2016-11-11 | 2017-04-19 | 合肥龙多电子科技有限公司 | Control system of fan capable of walking and achieving intelligent day-night control |
| CN110017296B (en) * | 2019-04-02 | 2020-09-18 | 深圳市爱尚智联科技有限公司 | Intelligent fan and control method thereof |
| CN111577642A (en) * | 2020-05-27 | 2020-08-25 | 江西电力职业技术学院 | Automatic fan control method and system |
| CN111911442A (en) * | 2020-06-30 | 2020-11-10 | 南京航空航天大学 | Intelligent fan device based on infrared detection |
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| JPH01321889A (en) * | 1988-06-21 | 1989-12-27 | Copyer Co Ltd | Dc motor speed controlling method |
| CN101714812A (en) * | 2008-10-08 | 2010-05-26 | 鸿富锦精密工业（深圳）有限公司 | Fan control circuit |
| CN102420558A (en) * | 2011-12-15 | 2012-04-18 | 苏州合欣美电子科技有限公司 | Pulse width modulation (PWM) pulse drive circuit for direct-current motor |
| CN103123159B (en) * | 2013-01-24 | 2014-12-10 | 广东志高空调有限公司 | Air conditioner sleeping function control method based on cloud computing technology |
| CN103062867A (en) * | 2013-02-04 | 2013-04-24 | 广州松下空调器有限公司 | Method for controlling sleep mode of air conditioner |
| CN203809330U (en) * | 2014-05-21 | 2014-09-03 | 金陵科技学院 | Automatic tracking smart fan |
| CN204921438U (en) * | 2015-09-04 | 2015-12-30 | 宋彦震 | Automatic frequency modulation fan |
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Effective date of registration: 20181207 Address after: 201600 4 Building 5 Shengta Road, Shihudang Town, Songjiang District, Shanghai Patentee after: Shanghai Aipu Environmental Technology Co., Ltd. Address before: 065201 North China Institute of Science and Technology, Sanhe City, Langfang City, Hebei Province Patentee before: Song Yanzhen |