CN104832444A - Intelligent fan - Google Patents
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- CN104832444A CN104832444A CN201510111751.5A CN201510111751A CN104832444A CN 104832444 A CN104832444 A CN 104832444A CN 201510111751 A CN201510111751 A CN 201510111751A CN 104832444 A CN104832444 A CN 104832444A
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Abstract
The invention discloses an intelligent fan comprising a fan and an air direction control system. The air supply range of the fan includes a plurality of air supply areas. The air direction control system comprises a user detection module used for detecting user information of each air supply area, an air direction detection module used for detecting current air supply information of the fan including air direction and rotation direction of the fan, and a main control module used for adjusting the air supply mode of the fan according to the user information of each air supply area and the current air direction, wherein the air supply mode includes the air direction and rotation direction of the fan and the rotation speed in each air supply area. According to the invention, the air supply range of the fan is divided into a plurality of air supply areas, the air supply mode of the fan is adjusted in real time according to the user information of each air supply area, and the air direction changes slowly in the areas with users and changes quickly in the areas without users, so as to achieve a maximum energy saving effect.
Description
Technical field
The present invention relates to household electrical appliance technical field, be specifically related to a kind of intelligent fan.
Background technique
Electric fan (fan) is our common household electrical appliances, is that hot summer drives scorching instrument.The generation of air-conditioning makes electric fan receive certain impact, but compared with air-conditioning, electric fan has the advantage of its uniqueness, is still indoor modal cooling electrical equipment.Such as, electric fan is cheap and more energy-conservation; Secondly, use during electric fan and can open the window, avoid air not exchange with the external world for a long time, pollutant increases, and catches.
But existing electric fan also also exists some drawbacks, when a lot of people sleep soundly use fan, temperature fluctuation larger time easily causing nasal obstruction headache etc. uncomfortable, so design electric fan that is more intelligent, hommization can expand the application area of fan further.
In addition, existing electric fan function singleness, can only be set by user, changes air supply direction and blow in fixing angle, can not respond to user particularly multiple user position and automatic top is blown to user.This is not enough, makes troubles to user.
For this problem, publication number is that the Chinese patent application of CN 104088805 A discloses a kind of intelligent fan, by the position of installation infrared sensor sensing user on fan, according to the position adjustment wind direction of the user sensed.
Although this patent application can adjust wind direction automatically according to user position.But, when same electric fan multiple users residing for position comparatively disperse, then when electric fan at the uniform velocity changes wind direction air-supply, by wasting air output without in the region of user, this is just equal to waste electricity.This is not enough, the air quantity not only allowing user can not enjoy electric fan to greatest extent to send, also unfavorable in environmental protection.
In addition, many Intelligent electric fan products and correlative study thereof is had at present.The environmentally temperature adjusting vane rotational velocity had; What have is unmanned at, and then automatic start-stop fan by having in pyroelectric infrared sensor nernst cell; Have by range sensor monitor child be strayed into exposure distance time, can automatically give the alarm.
Especially in recent years, that pursues quality of life along with people improves constantly, and existing electric fan function singleness, can not meet the requirement of user.Some electric fans developed also cannot change blowing range and direction according to the position of user and number, there iing people with unmanned local air output and indifference simultaneously, this causes the waste of air output and electric energy to a certain extent, the requirement of discontented sufficient energy-saving and emission-reduction low-carbon environment-friendly.
Summary of the invention
In order to make up existing electric fan can not automatically respond to user position and cause use inconvenience and without the problem of wasting air output in the region of user, the invention provides a kind of intelligent fan.
A kind of intelligent fan, comprises fan and wind direction control system, and the blowing range of described fan comprises several air-supply regions;
Described wind direction control system comprises:
User's testing module, for detecting the user profile in each air-supply region;
Wind direction testing module, for detecting the current air-supply information of fan, described air-supply information comprises wind direction and the sense of rotation of fan;
Main control module, for the user profile in region of blowing according to each and the air supply pattern of current wind direction adjustment fan, described air supply pattern comprises the wind direction of fan, sense of rotation and the rotational speed in each air-supply region.
When practical application, first-selection needs the blowing range determining fan, and then blowing range is divided into several air-supply regions.Blowing range can be detected by the wind direction testing module in master control system and obtain, and the blowing range of usual fan adopts the rotation angle range of fan to weigh.
When dividing air-supply region, can set according to practical situations, such as can adopt average decile partitioning, even if each air-supply region equal and opposite in direction, also non-decile partitioning can be adopted, namely set arbitrarily the size in each air-supply region according to user's request custom, the size in any two air-supply regions does not affect, each other as long as ensure that the size sum in all air-supply regions equals blowing range.
The number in air-supply region, without particular/special requirement, because the wind direction of fan and rotational speed are realized by Electric Machine Control usually, considers precision and operability, and as preferably, the blowing range of described fan comprises 3 ~ 6 air-supply regions.Further preferably, the blowing range of described fan comprises 5 air-supply regions.
During owing to determining air supply pattern, usually only need to consider whether have user in air-supply region, accordingly, described user profile comprises each air-supply region and whether there is user.
For ease of realizing, described user's testing module comprise several and each to blow region infrared senor one to one.
The detection range of infrared senor is usually comparatively large, for corresponding air-supply area coincidence, first can setting the mounting point of infrared senor on fan, then carrying out special processing to infrared senor.In the present invention, processing method is as follows:
Lived by the opaque material blocks of the edge surrounding of the Fresnel lens on infrared senor, scope of blocking is determined according to required detection range.
Described main control module is according to the air supply pattern of following method adjustment fan:
If the air-supply region that current wind direction is corresponding does not exist user, and when all air-supply regions corresponding after current wind direction all do not exist user, change sense of rotation and make it contrary with current sense of rotation;
Otherwise, do not change sense of rotation.
All air-supply regions corresponding after current wind direction in the present invention refer to that the wind direction of fan is from current wind direction, according to all air-supply regions of current sense of rotation successively process.
Described main control module is according to the air supply pattern of following method adjustment fan:
There is not the air-supply region of user for any one, the rotational speed of this air-supply region fan is greater than exist the rotational speed of the air-supply region fan of user.
There iing the air-supply region change of the wind slow (namely rotational speed is little) of user (user), at the air-supply region change of the wind fast (namely rotational speed is large) without user.Further preferably, for the air-supply region that there is not user, the rotational speed of this air-supply region fan is made to be 2 ~ 3 times of the rotational speed of the air-supply region fan that there is user.
Energy-conservation to greatest extent for realizing, must ensure the real-time of air supply pattern and user profile, in the present invention, user's testing module detects user profile automatically every the time lag of setting, and the user profile according to detecting adjusts air supply pattern in real time.
As preferably, the described time lag regulates according to the size in each air-supply region and the rotational speed of setting and sets, for realizing following the tracks of air-supply, usually to ensure that (each air-supply region of wind direction process) is at least detected once in each air-supply region.
In addition, by periodic detection user profile adjustment air supply pattern, when only having a user, real-time tracking can be carried out to the position of this user, and then can realize carrying out tracking air-supply to this user.
Compared with prior art, tool of the present invention has the following advantages:
The blowing range of fan is divided into several air-supply regions, the air supply pattern of fan is adjusted in real time according to the user profile in each air-supply region, having, the region change of the wind of user is slow, fast at the region change of the wind without user, to reach maximum energy-saving effect.When there being several user, this electric fan can adjust the scope of its air-supply and the speed of change of the wind automatically according to the present position of user, user can be allowed to enjoy air output to greatest extent, reduce useless air-supply in the region without user to reach the object of environmental protection, economize on electricity simultaneously.
Accompanying drawing explanation
Fig. 1 is the fan control circuitry principle schematic of the present embodiment.
Embodiment
Describe the present invention below in conjunction with the drawings and specific embodiments.
A kind of intelligent fan, comprises fan and wind direction control system, and the blowing range of fan comprises several air-supply regions.
The fan of the present embodiment is slew page fan, by the movement of direct current motor band follower link, connecting rod, thus drives moving left and right of support, the slew page of fan is swung, thus change wind direction.
The blowing range (i.e. the angular range of slew page swing) of the fan of the present embodiment is 150 °, adopts even equisection method this blowing range to be divided into 5 air-supply regions, is respectively region one, region two, region three, region four and region five.The size in each air-supply region is 30 °, between each air-supply region mutually continuously, but without coincidence.
The wind direction control system of the present embodiment comprises:
User's testing module, for detecting the user profile in each air-supply region, user profile comprises each air-supply region and whether there is user;
In the present embodiment, user's testing module comprises 5 and each region infrared senor one to one of blowing.When having user in the air-supply region of correspondence, corresponding infrared senor exports high level.
Concrete methods of realizing is as follows:
First, in the mounting point of each air-supply region setting infrared senor, then infrared senor is processed, make the measuring range of each infrared senor with corresponding air-supply area coincidence and be installed on the mounting point of setting.
Wind direction testing module, for detecting the current air-supply information of fan, air-supply information comprises wind direction and the sense of rotation of fan;
In the present embodiment, wind direction testing module realizes based on hall element sensor module, and wherein Hall transducer is arranged on the support of fan slew page.Indirectly responded to the swing of slew page by Hall transducer, and then complete the detection to current wind direction and sense of rotation (i.e. the swaying direction of slew page).
Main control module, for the air supply pattern according to each air-supply user profile in region and current wind direction adjustment fan, in the present embodiment, air supply pattern comprises the wind direction of fan, sense of rotation and the rotational speed in each air-supply region.
In the present embodiment, main control module is according to the air supply pattern of following method adjustment fan:
There is not the air-supply region of user for any one, the rotational speed of this air-supply region fan being greater than exist the rotational speed of the air-supply region fan of user (for there are 2 times of the air-supply region fan rotational speed of user in the present embodiment).
If the air-supply region that current wind direction is corresponding does not exist user, and when all air-supply regions corresponding after current wind direction all do not exist user, change sense of rotation and make it contrary with current sense of rotation;
Otherwise, do not change sense of rotation.
The main control module of the present embodiment realizes based on DSP digital signal processor (dsp processor), can improve processing rate, and compared with logical circuit, is easy to realize, greatly reduces circuit complexity.
The air supply pattern of wind direction control system control fan is finally the Electric Machine Control realization by swinging drive fan slew page, based on circuit realiration as shown in Figure 1.
As shown in Figure 1,5 output pins of user's testing module (the present embodiment comprises 5 infrared senors) are connected with GPIO1 to the GPIO5 pin (being respectively GPIO1, GPIO2, GPIO3, GPIO4 and GPIO5) of DSP digital signal processor.Wind direction testing module (being two Hall transducers in the present embodiment) is connected with AD1 and the AD2 pin of DSP digital signal processor.DC MOTOR CONTROL module adopts H bridge type driving plate, and model is L298N, and in1, in2, GND, VCC pin on it is connected with PWM1, PWM2, VCC, GND pin of DSP digital signal processor respectively.
Meanwhile, Vin, GND pin of DC MOTOR CONTROL module and supply convertor (AC/DC module, i.e. AC/DC in figure) are connected.M+ and the M-pin of DC MOTOR CONTROL module is connected with direct current motor M.Wherein, DC MOTOR CONTROL module M+ and M-pin be also connected with K switch M between direct current motor M and be connected.
During circuit working, the external civil power of supply convertor (i.e. AC 220V Ac), changes 220V Ac into 15V direct current, for DC MOTOR CONTROL module provides basis power supply.DC MOTOR CONTROL inside modules can change the direct current of this 15V into 5V direct current, for DSP digital signal processor provides basis power supply.
Run in DSP digital signal processor and have wind direction control program, by this wind direction control program adjustment air supply pattern.Below, by an example, describe this control program, also describe the working principle of whole circuit.
The blowing range of fan is divided into five regions by user's testing module (i.e. five infrared senors) from left to right, and each infrared senor represents a region.The border in each region is with two digital signals for mark, and these boundary markers are stored in DSP digital signal processor.Suppose there is user in present region one and region three, and two of region one boundary markers are d1, d2, the boundary marker in region two is d2, d3, and the boundary marker in region three is d3, d4.Represent region one and will export 3.3V high level with the infrared senor in region three, make GPIO1 and the GPIO3 pin of DSP digital signal processor receive high level, this high level signal will be converted into digital signal " 1 ", be designated as GPIO1=1, GPIO3=1, GPIO2=GPIO4=GPIO5=0.Hall element can the current wind direction of indirect detection in real time, when wind direction is different, the output analog voltage of Hall element varies in size, this analog voltage is input to AD1 and the AD2 pin of DSP digital signal processor, the analog voltage amount that this can be represented current wind direction information by DSP digital signal processor inside is converted to a digital quantity, is designated as d.
D and d1, d2, d3, d4 compare by DSP digital signal processor in real time.If d>d4 now, GPIO1=1, GPIO3=1, GPIO2=GPIO4=GPIO5=0, represent the right side that current wind direction is positioned at user, then control program will make the pwm signal that on the PWM1 pin of DSP digital signal processor, output duty cycle is larger, and PWM2 pin exports and remains 0V.This pwm signal is input to DC MOTOR CONTROL module, this pwm signal is changed into the power signal that can drive direct current motor by DC MOTOR CONTROL module, export from M+ and the M-pin of DC MOTOR CONTROL module, make direct current motor forward fast rotational (in the present embodiment, atwirl speed is 8 rpms), make wind direction arrive region three fast.
Work as d3<d<d4, represent wind direction and arrive region three, due to GPIO3=1, control program will make the pwm signal that on the PWM1 pin of DSP digital signal processor, output duty cycle is less, and PWM2 pin exports and remains 0V.This pwm signal makes direct current motor forward slow circumvolve (speed rotated at a slow speed in the present embodiment is 4 rpms) through DC MOTOR CONTROL module, the pendulum making wind direction slower region three.
Subsequently, d2<d<d3, represent wind direction and arrive region two, due to GPIO2=0, control program will make the pwm signal (i.e. pulse width modulating signal) that output duty cycle on the PWM1 pin of DSP digital signal processor is larger, and PWM2 pin exports and remains 0V.This pwm signal makes direct current motor forward fast rotational through DC MOTOR CONTROL module, makes wind direction inswept region two faster.Subsequently, d1<d<d2, represent wind direction and arrive region one, due to GPIO1=1, control program will make the pwm signal that on the PWM1 pin of DSP digital signal processor, output duty cycle is less, and PWM2 pin exports and remains 0V.This pwm signal makes direct current motor forward rotate at a slow speed through DC MOTOR CONTROL module, makes wind direction put region one slowly.
When d is less than or equal to d1, control program keeps 0V by making the PWM1 pin of DSP digital signal processor export, the pwm signal that PWM2 pin output duty cycle is less, this pwm signal makes through DC MOTOR CONTROL module that direct current motor is reverse to be rotated at a slow speed, wind direction is made to put region one slowly, same, wind direction by quick inswept region two, then put at a slow speed region three.Due to GPIO4=GPIO5=0, control program will move to region one after wind direction will be made to put region three again, can not blow to region four and region five.
The technological scheme that the present embodiment adopts is: use DSP digital signal processor infrared senor, Hall sensor module, DC MOTOR CONTROL module to be connected, jointly control electric fan.The shell of existing electric fan installs five infrared senors, and the blowing range of electric fan can be divided into five regions like this, each infrared senor represents a region.When one or more user enters some or certain several region, the infrared human body induction module of respective regions will output signal to DSP digital signal processor.Meanwhile, Hall sensor module also will sense the air supply direction that fan is current in real time, and this direction signal is reached DSP digital signal processor.DSP digital signal processor judges the speed (i.e. rotational speed) of blowing range and the subsequent time change of the wind needed according to above two signals, and these is judged converting pwm signal (i.e. pulse width modulating signal) to is delivered to DC MOTOR CONTROL module.Subsequently, DC MOTOR CONTROL module will control the operation of motor, thus controls the blowing range of fan and the speed of change of the wind.
The invention has the beneficial effects as follows, when only having a user to use this electric fan, this electric fan can sense the position of user and for its air-supply, if now user is walking about, this electric fan can follow the tracks of air-supply to it.When there being several user, this electric fan can adjust the scope of its air-supply and the speed of change of the wind automatically according to the present position of user.Such as, if there is user in region one and region three, this electric fan will only be blown to region three in region one, and meanwhile, in region one, change of the wind is slow; In region two, change of the wind is fast; In region three, change of the wind is slow.Like this, user can be allowed to enjoy air output to greatest extent, reduce useless air-supply in the region without user to reach the object of environmental protection, economize on electricity simultaneously.
Above-described embodiment has been described in detail technological scheme of the present invention and beneficial effect; be understood that and the foregoing is only most preferred embodiment of the present invention; be not limited to the present invention; all make in spirit of the present invention any amendment, supplement and equivalent to replace, all should be included within protection scope of the present invention.
Claims (8)
1. an intelligent fan, comprises fan and wind direction control system, it is characterized in that, the blowing range of described fan comprises several air-supply regions;
Described wind direction control system comprises:
User's testing module, for detecting the user profile in each air-supply region;
Wind direction testing module, for detecting the current air-supply information of fan, described air-supply information comprises wind direction and the sense of rotation of fan;
Main control module, for the user profile in region of blowing according to each and the air supply pattern of current wind direction adjustment fan, described air supply pattern comprises the wind direction of fan, sense of rotation and the rotational speed in each air-supply region.
2. intelligent fan as claimed in claim 1, is characterized in that, the blowing range of described fan comprises 3 ~ 6 air-supply regions.
3. intelligent fan as claimed in claim 1, is characterized in that, the blowing range of described fan comprises 5 air-supply regions.
4. as the intelligent fan in claims 1 to 3 as described in any one, it is characterized in that, described user profile comprises each air-supply region and whether there is user.
5. intelligent fan as claimed in claim 4, is characterized in that, described user's testing module comprise several and each to blow region infrared senor one to one.
6. intelligent fan as claimed in claim 5, is characterized in that, described main control module is according to the air supply pattern of following method adjustment fan:
If the air-supply region that current wind direction is corresponding does not exist user, and when all air-supply regions corresponding after current wind direction all do not exist user, change sense of rotation and make it contrary with current sense of rotation;
Otherwise, do not change sense of rotation.
7. intelligent fan as claimed in claim 6, is characterized in that, described main control module is according to the air supply pattern of following method adjustment fan:
There is not the air-supply region of user for any one, the rotational speed of this air-supply region fan is greater than exist the rotational speed of the air-supply region fan of user.
8. intelligent fan as claimed in claim 7, is characterized in that, for the air-supply region that there is not user, makes the rotational speed of this air-supply region fan be 2 ~ 3 times of the rotational speed of the air-supply region fan that there is user.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510111751.5A CN104832444B (en) | 2015-03-13 | 2015-03-13 | A kind of intelligent fan |
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| CN201510111751.5A CN104832444B (en) | 2015-03-13 | 2015-03-13 | A kind of intelligent fan |
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| CN105650019A (en) * | 2015-12-30 | 2016-06-08 | 小米科技有限责任公司 | Control method and device for fan and fan |
| CN106499652A (en) * | 2016-10-24 | 2017-03-15 | 广东美的环境电器制造有限公司 | Fan and the control method of fan |
| CN106545512A (en) * | 2015-09-23 | 2017-03-29 | 相阳 | The automatic energy-saving device of oscillating fan |
| WO2018027672A1 (en) * | 2016-08-10 | 2018-02-15 | 韩性峰 | Oscillation distance-variable smart fan |
| CN107725452A (en) * | 2017-09-21 | 2018-02-23 | 珠海格力电器股份有限公司 | control method and device of electric fan |
| CN109098994A (en) * | 2018-08-13 | 2018-12-28 | 广东美的环境电器制造有限公司 | The control method of fan based on air-supply type definition, apparatus and system |
| CN110454946A (en) * | 2019-08-13 | 2019-11-15 | 江苏群达智能科技有限公司 | A kind of fan speed regulation method that universal convertible frequency air-conditioner control panel uses |
| CN112762000A (en) * | 2021-01-20 | 2021-05-07 | 江门金羚日用电器有限公司 | Fan control method and device, fan and computer readable storage medium |
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| CN106545512A (en) * | 2015-09-23 | 2017-03-29 | 相阳 | The automatic energy-saving device of oscillating fan |
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| CN110454946A (en) * | 2019-08-13 | 2019-11-15 | 江苏群达智能科技有限公司 | A kind of fan speed regulation method that universal convertible frequency air-conditioner control panel uses |
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