CN111120373A - Natural wind simulating fan and natural wind simulating method - Google Patents
Natural wind simulating fan and natural wind simulating method Download PDFInfo
- Publication number
- CN111120373A CN111120373A CN202010000543.9A CN202010000543A CN111120373A CN 111120373 A CN111120373 A CN 111120373A CN 202010000543 A CN202010000543 A CN 202010000543A CN 111120373 A CN111120373 A CN 111120373A
- Authority
- CN
- China
- Prior art keywords
- natural wind
- controller
- temperature
- fan
- wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air
- F04D25/105—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air by changing rotor axis direction, e.g. oscillating fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/007—Conjoint control of two or more different functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/303—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/311—Air humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/313—Air temperature
Abstract
The fan for simulating natural wind comprises a fan body, a fan body and a spraying pot device, wherein the fan body is provided with a head shaking motor, a fan blade rotating motor and the spraying pot device; and the control part comprises a user control panel, a controller, a temperature and humidity sensor and a pyroelectric infrared sensor, wherein the temperature and humidity sensor, the pyroelectric infrared sensor and the watering pot device are respectively in communication connection with the controller, the controller stores a plurality of comfortable natural wind speed samples collected in different regions under different environmental conditions, when the environmental humidity measured by the temperature and humidity sensor is lower than a set value in the controller, the controller controls the watering pot device to spray for adjusting the environmental humidity, and after the controller processes a received current temperature and humidity signal of the temperature and humidity sensor, a heat source position signal of the pyroelectric infrared sensor and a heat source temperature signal, a corresponding natural wind sample signal is obtained from the memory to control the shaking motor to swing towards the heat source in a preset amplitude, so that the effects of simulating natural wind and saving energy are achieved.
Description
Technical Field
The invention belongs to the field of household appliances, and particularly relates to a fan for simulating natural wind and a method for simulating natural wind.
Background
Along with the improvement of comfort requirements of people, more and more electric fans simulating natural wind of different types come into the market, and the most common method is to utilize a temperature sensor to adjust the wind speed according to the change of temperature so as to simulate the natural wind. However, the simulation of natural wind is affected by a combination of various factors, such as air temperature, relative humidity, turbulence intensity of the simulated wind, action time, etc., and the simple adjustment of wind speed and operation stop according to the variation of a certain factor cannot successfully simulate natural wind and satisfy the comfort of human body. And researches show that natural wind in different environments, different regions and different wind speeds has similar frequency spectrum characteristics.
In the prior art, a user controls the rotating speed of the motor to drive the fan blades only through the change of the ambient temperature or the temperature of the human body heat source, so that the size of wind power is controlled; the operation and the stop of the fan can not meet the blowing requirement of a human body by controlling the operation and the stop of the fan through self-setting the temperature limit value for stopping the operation of the fan motor. And the air supply angle regulation of fan is convenient inadequately, when shaking head: wind power waste is easily caused; when the fixation is performed: the wind is concentrated to cause the uncomfortable feeling of blowing, so that reasonable swinging motion is required.
Disclosure of Invention
Due to different environmental conditions, such as different temperatures and relative humidities, the natural wind that can satisfy the comfort of a person is different, which is reflected in the turbulence intensity (wind speed). In order to solve the above problems, the present invention aims to provide a fan simulating natural wind, which can accurately simulate natural wind satisfying comfort of human body, and achieve comfort as if people really blow natural wind, by combining environment and other influencing factors (including operating time, turbulence intensity of natural wind, etc.).
The invention provides a fan simulating natural wind, which is characterized by comprising a fan body, a fan blade rotating motor and a watering can device, wherein the fan body is provided with a head shaking motor, a fan blade rotating motor and the watering can device; and the control part comprises a user control panel, a controller, a temperature and humidity sensor and a pyroelectric infrared sensor, wherein the temperature and humidity sensor, the pyroelectric infrared sensor and the watering can device are respectively in communication connection with the controller, and the controller stores a plurality of comfortable natural wind samples collected in different regions under different environmental conditions. When the environmental humidity measured by the temperature and humidity sensor is lower than a set value in the controller, the controller controls the spray of the spray can device to adjust the environmental humidity, and after the controller processes the received current temperature and humidity signals of the temperature and humidity sensor, the heat source position signals of the pyroelectric infrared sensor and the heat source temperature signals, the controller obtains corresponding natural wind sample signals from the memory to control the oscillating motor to swing towards the heat source in a preset amplitude.
The fan simulating natural wind provided by the invention can also have the following characteristics: wherein, the watering can device is arranged on the base of the fan body.
In addition, the fan simulating natural wind provided by the invention can also have the following characteristics: and the controller also stores fan swing range values under different heat source temperature conditions.
In addition, the fan simulating natural wind provided by the invention can also have the following characteristics: wherein the comfortable natural wind speed sample comprises: mountain wind, lake wind, grassland wind, forest wind, park wind, and lawn wind.
The method for simulating the natural wind according to the fan for simulating the natural wind is characterized by comprising the steps that a simulation mathematical model is stored in a controller, the controller receives the air temperature t and the relative humidity phi acquired by the temperature and humidity sensor, and the heat source temperature t acquired by the pyroelectric infrared sensor0And after calculation is carried out through a mathematical model, a calculation result is output, and the calculation result and the influence factor numerical value are as follows: t, phi, Tu, t0And after the data of the blowing time T is used as a judgment basis and is compared with the comfortable natural wind sample stored in the controller, the corresponding natural wind sample is taken, and the controller controls the rotating speed of the fan blade rotating motor to simulate natural wind through the taken natural wind sample signal.
In addition, the method for simulating natural wind provided by the invention can also have the following characteristics: wherein, the expression of the simulation mathematical model is as follows:
a is each influencing factor (t, phi, Tu, t)0Blowing time T), R is an evaluation matrix based on a heat sensation voting value TSV ruler, a row vector is an input data item, a column vector is the membership degree of the column vector under different heat sensation conditions, and V isTIs a transposed matrix of the TSV ruler set V.
In addition, the method for simulating natural wind provided by the invention can also have the following characteristics: wherein { -0.5,0.5} is an ideal region of the mean thermal sensation vote value MTSV.
In addition, the method for simulating natural wind provided by the invention can also have the following characteristics: wherein the calculation of the simulation mathematical model comprises the following steps:
1. will t, phi, t0When M is equal to a · R · V · S, T, Tui is equal to 0.3 (the value is simply an independent variable of the turbulence intensity during processing and calculation), S is equal to 0.3(S is called the optimum average thermal sensation value, and the thermal sensation is better as the value approaches 0)TIn the above-mentioned step (2), the numerical value of M is calculated,
2. if the value of M belongs to the range of { -0.5,0.5}, continuously judging whether S is larger than the absolute value of M, if the value of M does not belong to the range of { -0.5,0.5}, judging whether Tui (independent variable) at the moment is larger than 0.5, if Tui is smaller than 0.5, adding 0.01 to Tui, and continuously returning to the first step for operation;
3. if S is greater than the absolute value of M on the basis that the value of M belongs to the interval { -0.5,0.5}, that is, the turbulence intensity Tui used for calculating M at this time can make the calculation result closer to the neutral thermal sensation and satisfy better thermal comfort, and therefore, M at this time is assigned to S, Tui is assigned to Tu; if S is smaller than the absolute value of M, judging whether Tui at the moment is larger than 0.5, if Tui is smaller than 0.5, adding 0.01 to Tui, and continuing to return to the first step for operation;
4. if Tui is greater than 0.5 when Tui is determined to be greater than 0.5, it is determined whether Tu is present at this time, where Tu is not present, i.e., 0.45, and finally Tu is output, and if it is present, Tu is directly output.
In addition, the method for simulating natural wind provided by the invention can also have the following characteristics: wherein, in the simulation mathematical model, the row belonging to Tu in R is an unknown item.
Action and Effect of the invention
According to the fan simulating natural wind, the micro-oscillating function is provided, the pyroelectric infrared sensor arranged on the fan support can transmit the position signal and the temperature of the heat source to the controller, the fixed left-right oscillation amplitude is realized on the heat source through the processing of the controller, the amplitude meets the thermal comfort requirement of a human body, the blowing discomfort caused by wind concentration can be avoided, and meanwhile, the large-amplitude air quantity waste can be avoided.
A reasonable turbulence intensity value (generally 0.3-0.5) is obtained by utilizing relevant data of temperature and humidity, action time and human body heat source temperature, the turbulence intensity, the temperature and the humidity and the fan operation time are combined together and are used as a judgment basis to be compared with a sample of a memory, a natural wind sample closest to the turbulence intensity is judged, a natural wind analog signal is transferred to the memory and transmitted to a motor, and then the motor controls the fan blades of the fan to rotate, so that the wind speed of the fan is consistent with the simulated natural wind fluctuation rule, and real natural wind can be simulated to the maximum extent. (the storage stores comfortable natural wind speed samples collected from different regions, including lawn wind, lake wind, grassland wind, forest wind, park wind and the like; the collected samples include local environment temperature, humidity, wind turbulence intensity, wind speed and the like.)
Drawings
FIG. 1 is a control block diagram in an embodiment of the invention;
FIG. 2 is a flow chart of the controller processing operation according to an embodiment of the present invention;
FIG. 3 is a graph showing the fluctuation of natural wind in a mountain area;
fig. 4 is a graph showing the fluctuation of natural wind, which is more comfortable and simulated by the fan in the embodiment.
Detailed Description
In order to make the technical means, creation features, achievement objects and effects of the present invention easy to understand, the following embodiments are specifically described with reference to the accompanying drawings.
Examples
The fan simulating natural wind comprises a fan body and a control part.
The fan body comprises a body, a motor 1 (a head shaking motor), a motor 2 (a fan blade rotating motor), a head shaking device, a support, a base and a watering can device.
The fuselage sets up on the support, and the support setting is on the base, and the fuselage includes front and back screen panel and individual layer flabellum.
The control part is arranged on the bracket and comprises a user control panel, a controller, a temperature and humidity sensor and a pyroelectric infrared sensor.
The temperature and humidity sensor and the pyroelectric infrared sensor are respectively arranged on the support and are respectively in communication connection with the controller, and the watering can device is in communication connection with the controller.
The fan base is provided with a small-capacity watering can device, and when the environmental humidity is lower than the limit value set in the controller, the controller controls the watering can device to spray so as to properly adjust the environmental humidity.
The fan in this embodiment is equipped with the function of shaking the head a little, and 2 one end of the motor of fan link to each other with the fan fuselage, and one end has connect adjustment mechanism, and adjustment mechanism links to each other with the support, and the support lower extreme is the base. The current heat source position signal d and the current heat source temperature t can be converted by the pyroelectric infrared sensor arranged on the fan bracket0The swing signal is transmitted to the controller, the signal is output to the adjusting mechanism through the processing of the controller, the fan is enabled to position the heat source, and after the positioning is completed, the adjusting mechanism can receive the swing signal (the swing range value under different heat source temperature conditions is stored in the storage period, the rotation angle is inversely proportional to the heat source temperature, namely the higher the heat source temperature is, the smaller the rotation angle is, the more concentrated the wind power is), the swing amplitude is fixed towards the heat source, the amplitude meets the thermal comfort requirement of a human body, the blowing discomfort caused by the concentration of the wind power can be avoided, and meanwhile, the large air quantity waste can also be avoided.
As shown in fig. 1, the controller receives signals from the temperature and humidity sensor and the pyroelectric infrared sensor, and the signals are processed and calculated by the controller and transmitted to the motor 1 (for adjusting the rotation amplitude of the fan body), the motor 2 (for adjusting the rotation speed of the fan blades) and the watering can device, respectively.
The controller also comprises a memory, wherein the memory is internally stored with collected comfortable natural wind speed samples in different regions and under various different environmental conditions, and the controller comprises: mountain wind, lake wind, grassland wind, forest wind, park wind, lawn wind, etc.; and the fan swing range value under different heat source temperature conditions is also stored.
A significant property affecting the comfort of different natural wind heats is their intensity of turbulence. Turbulence intensity is a characteristic quantity that characterizes the core of a simulated natural wind. In the embodiment, a reasonable turbulence intensity value (generally 0.3-0.5) is obtained by utilizing the temperature and humidity, the action time and the related data of the human body heat source temperature, the turbulence intensity, the temperature and the humidity and the fan operation time are combined together and are used as a judgment basis to be compared with the sample of the memory, the natural wind sample closest to the turbulence intensity is judged, the natural wind analog signal is transferred to the memory, the analog signal is transmitted to the motor, and then the motor controls the fan blades of the fan to rotate, so that the wind speed of the fan is consistent with the simulated natural wind fluctuation rule, and the real natural wind can be simulated to the maximum extent.
(the running time T of the fan: the controller can generally directly acquire the value, the invention plans to carry out one simulated natural wind operation in 1 minute under the condition that the ambient environment is not changed, and carry out real-time operation if the ambient environment is changed.)
The user can control the shaking head, the humidification and the simulation of natural wind functions of the fan through the control panel.
When the fan is started, the pyroelectric infrared sensor detects the position d and the heat source temperature t of the human body0The signals of positioning and shaking head are transmitted to the controller, the controller transmits the signals of positioning and shaking head to the motor 1, the motor 1 controls the shaking head device to ensure that the fan rotates and positions the heat source and shakes head left and right at the human body according to the function set value of the controller (the function is set in such a way that the rotation angle is in inverse proportion to the temperature of the heat source, namely the higher the temperature of the heat source is, the smaller the rotation angle is, and the wind blowsThe more concentrated the force).
At the moment, the temperature and humidity sensor detects the state of the surrounding environment, relevant data is transmitted into the controller, the controller combines the measured temperature and humidity, the simulated natural wind action time and the human body heat source temperature for operation, a better turbulence intensity value can be obtained through operation, the operation result and each influence factor value are used as a judgment basis and are compared with samples in the memory, a natural wind sample closest to the operation result is judged, the natural wind signal sample set in the memory is called (the number of samples capable of meeting the 60s fan operation is suitable), the called sample set is randomly transmitted to the motor 2, the motor 2 controls the rotating speed of fan blades to simulate natural wind, and a new operation result is called after 60s to simulate natural wind.
If the transmitted relative humidity phi is lower than the set lower limit value in the controller, the fan preferentially operates according to the recent historical instruction, and meanwhile, the controller outputs a humidity adjusting signal to the sprinkling can device to enable the sprinkling can device to spray, so that the moisture content of the ambient air can be increased, the relative humidity of the environment can be adjusted, then the temperature and humidity sensor acquires relevant data again, and a new natural wind analog signal is acquired. The water in the watering can needs to be added by the user.
Certain differences exist between steady-state mechanical wind and real natural wind on characteristic parameters such as turbulence intensity Tu and airflow frequency f; simulating natural wind with appropriate turbulence intensity is crucial to thermal comfort, and too high or too low turbulence intensity may give a "cold" feeling. Turbulent motion causes the airflow motion to have pulsatility, and the pulsating wind speed refers to the difference between the instantaneous wind speed and the average wind speed at a certain point in space at a certain time t.
Generally, the relative humidity of the most comfortable air is 50% -60%, if the relative humidity is less than 20%, people feel dry mouth and tongue, and the respiratory organs of the human body are adversely affected; in the environment of low indoor air relative humidity, the blowing feeling is stronger; under the condition of proper simulation of natural wind, higher indoor temperature and indoor relative humidity can be accepted.
If there is a number A (x) e [0, 1] corresponding to any element x in the domain of interest (range studied) U, A (x) is called the membership of x to A. This noun is mostly used for fuzzy mathematics.
As shown in fig. 2, the method for simulating natural wind by the fan includes the following steps:
firstly, acquiring air temperature t and relative humidity phi of influencing factor values by a temperature and humidity sensor, and acquiring heat source temperature t by a pyroelectric infrared sensor0. Will t, phi, t0Transmitting the data to a controller;
secondly, relevant mathematical models are arranged in the controller:
wherein A is each influencing factor (t, phi, Tu, t)0Blowing time T), wherein R is an evaluation matrix based on a heat sensation voting value TSV ruler, a row vector is an input data item, a column vector is the membership degree of the row vector under different heat sensation conditions, for example, the first row and the third column represent the membership degree of ambient air temperature when the heat sensation is slightly cool, and the evaluation matrix is obtained through questionnaire statistical processing: the membership of different influencing factors under different heat senses is nearly fixed. VTA transpose matrix of a TSV ruler set V is defined, and { -0.5,0.5} is an ideal region of an average thermal sensation vote value MTSV;
thirdly, in the controller, t, phi and t0And T is taken as a known item and substituted into the data processing model, then in the model, the row belonging to Tu in R is an unknown item;
fourthly, at the moment, the turbulence intensity 0.3 is taken as an initial value of Tu, and a numerical value in a known turbulence comfort area (0.3-0.5) is taken by taking 0.01 as a step length and is substituted into a model for calculation; the detailed calculation is as follows:
1. will t, phi, t0When M is equal to a · R · V · S, T, Tui is equal to 0.3 (the value is simply an independent variable of the turbulence intensity during processing and calculation), S is equal to 0.3(S is called the optimum average thermal sensation value, and the thermal sensation is better as the value approaches 0)TIn the above-mentioned step (2), the numerical value of M is calculated,
2. if the value of M belongs to the range of { -0.5,0.5}, continuously judging whether S is larger than the absolute value of M, if the value of M does not belong to the range of { -0.5,0.5}, judging whether Tui (independent variable) at the moment is larger than 0.5, if Tui is smaller than 0.5, adding 0.01 to Tui, and continuously returning to the first step for operation;
3. if S is greater than the absolute value of M on the basis that the value of M belongs to the interval { -0.5,0.5}, that is, the turbulence intensity Tui used for calculating M at this time can make the calculation result closer to the neutral thermal sensation and satisfy better thermal comfort, and therefore, M at this time is assigned to S, Tui is assigned to Tu; if S is smaller than the absolute value of M, judging whether Tui at the moment is larger than 0.5, if Tui is smaller than 0.5, adding 0.01 to Tui, and continuing to return to the first step for operation;
4. if Tui is greater than 0.5 when Tui is determined to be greater than 0.5, it is determined whether Tu is present at this time, where Tu is not present, i.e., 0.45, and finally Tu is output, and if it is present, Tu is directly output.
Fifthly, calculating the result and the influence factor value: t, phi, Tu, t0Comparing the data of the running time T with the samples in the memory as a judgment basis to judge the natural wind sample closest to the data, randomly calling the natural wind signal of the sample in the memory, and performing disordered simulation of the natural wind with a period of 60 s;
and sixthly, transmitting the obtained simulated natural wind signal to the motor 2, and controlling the rotating speed of the fan blades by the motor 2 to simulate natural wind.
In a natural environment, when factors such as airflow motion parameters, ambient temperature and air humidity are in a proper range, the near-surface natural wind 1.2-1.6 m away from the ground is mostly considered to be comfortable natural wind.
When the ambient environment state changes or the human body heat source temperature changes, the controller obtains new data parameters from the sensor, new turbulence intensity values are obtained through calculation, the previous process is repeated, and disordered simulation of natural wind is carried out.
FIG. 3 is a cut-out of a fluctuation curve of actual natural wind in a certain mountain land; is a sampling graph of actual natural wind (mountain wind) in the embodiment (the turbulence intensity of the sampling graph is in a comfortable area); this graph is primarily a plot of the actual sampled wind velocity fluctuations.
Fig. 4 is a cut-out of a fluctuation curve of a comfortable natural wind simulated by the fan in this embodiment, which is a schematic diagram (partially cut-out) of a simulated natural wind of the fan in this embodiment, and is a curve of a natural wind fluctuation that can be simulated by the fan in this embodiment.
When the result of the fan operation process is contrary to the user command, the user command has the highest priority.
Certain differences exist between steady-state mechanical wind and real natural wind on characteristic parameters such as turbulence intensity Tu and airflow frequency f; simulating natural wind with appropriate turbulence intensity is crucial to thermal comfort, and too high or too low turbulence intensity may give a "cold" feeling. Turbulent motion causes the airflow motion to have pulsatility, and the pulsating wind speed refers to the difference between the instantaneous wind speed and the average wind speed at a certain point in space at a certain time t.
Generally, the relative humidity of the most comfortable air is 50% -60%, if the relative humidity is less than 20%, people feel dry mouth and tongue, and the respiratory organs of the human body are adversely affected; in the environment of low indoor air relative humidity, the blowing feeling is stronger; under the condition of proper simulation of natural wind, higher indoor temperature and indoor relative humidity can be accepted.
If there is a number A (x) e [0, 1] corresponding to any element x in the domain of interest (range studied) U, A (x) is called the membership of x to A. This noun is mostly used for fuzzy mathematics.
Example two
The micro-oscillating device of the fan can be replaced: the fan housing is made into a flow guide cover, the head shaking device is changed into the adjusting mechanism, the controller transmits an instruction to the motor 1, the motor 1 controls the adjusting mechanism to adjust the rotating angle of the flow guide cover piece, the air flow direction is further adjusted, the micro-head shaking effect is achieved, the blowing feeling can be avoided, and the air quantity waste can be reduced.
Effects and effects of the embodiments
According to the fan of simulation natural wind that this embodiment is related to, be equipped with the function of shaking the head a little, through installing the pyroelectric infrared sensor on the fan support, can with heat source position signal and heat source temperature transfer to the controller in, through the processing of controller, there is fixed horizontal hunting range to the heat source, its range satisfies human thermal comfort demand, can avoid concentrating the uncomfortable sense of blowing that causes because of wind-force, also can avoid simultaneously the amount of wind waste by a wide margin.
In addition, in the embodiment, a reasonable turbulence intensity value (generally 0.3-0.5) is obtained by utilizing the temperature and humidity, the action time and the related data of the human body heat source temperature, the turbulence intensity, the temperature and humidity and the action time are combined for re-operation, the output result is sent to the storage to call a natural wind analog signal, the analog signal is transmitted to the motor, and then the motor controls the rotation of the fan blades of the fan, so that the wind speed of the fan is consistent with the simulated natural wind fluctuation rule, and the real natural wind can be simulated to the maximum extent.
The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.
Claims (9)
1. A fan for simulating natural wind, comprising:
the fan body is provided with a head shaking motor, a fan blade rotating motor and a watering can device; and
a control part which comprises a user control panel, a controller, a temperature and humidity sensor and a pyroelectric infrared sensor,
wherein the temperature and humidity sensor, the pyroelectric infrared sensor and the watering can device are respectively in communication connection with a controller,
the controller stores a plurality of comfortable natural wind samples collected in different regions and under different environmental conditions,
when the environmental humidity measured by the temperature and humidity sensor is lower than the set value in the controller, the controller controls the watering can device to spray for adjusting the environmental humidity,
and the controller processes the received current temperature and humidity signals of the temperature and humidity sensor, the heat source position signals of the pyroelectric infrared sensor and the heat source temperature signals, and acquires corresponding natural wind sample signals from the controller to control the oscillating motor to swing towards the heat source in a preset amplitude.
2. A natural wind simulated fan according to claim 1, wherein:
wherein, the watering can device is arranged on the base of the fan body.
3. A natural wind simulated fan according to claim 1, wherein:
and the controller also stores fan swing range values under different heat source temperature conditions.
4. A natural wind simulated fan according to claim 1, wherein:
wherein the comfortable natural wind speed sample comprises: mountain wind, lake wind, grassland wind, forest wind, park wind, and lawn wind.
5. A method of simulating natural wind by a natural wind simulating fan according to claim 1, comprising:
a simulation mathematical model is stored in the controller,
the controller receives the air temperature t and the relative humidity phi acquired by the temperature and humidity sensor, and the heat source temperature t acquired by the pyroelectric infrared sensor0，
Calculating through a mathematical model and outputting a calculation result,
and calculating the following calculation results and influence factor values: t, phi, Tu, t0The data of the blowing time T is used as a judgment basis to be compared with the comfortable natural wind sample stored in the controller, then the corresponding natural wind sample is taken,
the controller controls the fan blade rotating speed of the fan blade rotating motor to simulate natural wind through the taken natural wind sample signal.
6. A method of simulating natural wind according to claim 5, wherein:
wherein, the expression of the simulation mathematical model is as follows:
wherein A is each influencing factor (t, phi, Tu, t)0Blowing time T), R is an evaluation matrix based on a thermosensory voting value TSV (TCV) scale, a row vector is an input data item, a column vector is the membership degree of the column vector under different thermosensory conditions, and V isTIs a transposed matrix of the TSV ruler set V.
7. A method of simulating natural wind according to claim 6, wherein:
wherein { -0.5,0.5} is an ideal region of the average thermal sense vote value MTSV (MTCV).
8. A method of simulating natural wind according to claim 1, wherein:
wherein the calculation of the simulation mathematical model comprises the following steps:
1. will t, phi, t0When M is equal to a · R · V · S, T, Tui is equal to 0.3 (the value is simply an independent variable of the turbulence intensity during processing and calculation), S is equal to 0.3(S is called the optimum average thermal sensation value, and the thermal sensation is better as the value approaches 0)TIn the above-mentioned step (2), the numerical value of M is calculated,
2. if the value of M belongs to the range of { -0.5,0.5}, continuously judging whether S is larger than the absolute value of M, if the value of M does not belong to the range of { -0.5,0.5}, judging whether Tui (independent variable) at the moment is larger than 0.5, if Tui is smaller than 0.5, adding 0.01 to Tui, and continuously returning to the first step for operation;
3. if S is greater than the absolute value of M on the basis that the value of M belongs to the interval { -0.5,0.5}, that is, the turbulence intensity Tui used for calculating M at this time can make the calculation result closer to the neutral thermal sensation and satisfy better thermal comfort, and therefore, M at this time is assigned to S, Tui is assigned to Tu; if S is smaller than the absolute value of M, judging whether Tui at the moment is larger than 0.5, if Tui is smaller than 0.5, adding 0.01 to Tui, and continuing to return to the first step for operation;
4. if Tui is greater than 0.5 when Tui is determined to be greater than 0.5, it is determined whether Tu is present at this time, where Tu is not present, i.e., 0.45, and finally Tu is output, and if it is present, Tu is directly output.
9. A method of simulating natural wind according to claim 8, wherein:
wherein, in the simulation mathematical model, the row belonging to Tu in R is an unknown item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010000543.9A CN111120373B (en) | 2020-01-02 | 2020-01-02 | Natural wind simulating fan and natural wind simulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010000543.9A CN111120373B (en) | 2020-01-02 | 2020-01-02 | Natural wind simulating fan and natural wind simulating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111120373A true CN111120373A (en) | 2020-05-08 |
| CN111120373B CN111120373B (en) | 2021-07-20 |
Family
ID=70507251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010000543.9A Active CN111120373B (en) | 2020-01-02 | 2020-01-02 | Natural wind simulating fan and natural wind simulating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111120373B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963474A (en) * | 2020-08-31 | 2020-11-20 | 合肥托卡拉图科技有限公司 | Fan comfort wind speed regulating and controlling system based on multi-dimensional monitoring and analysis |
| CN113482962A (en) * | 2021-08-06 | 2021-10-08 | 中山市技佳传动科技有限公司 | Self-adaptive control system and method based on fan temperature |
| CN117386657A (en) * | 2023-12-12 | 2024-01-12 | 珠海格力电器股份有限公司 | Electric fan, control method and control device thereof, and computer readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029625A (en) * | 2004-07-13 | 2006-02-02 | Toshiba Electric Appliance Co Ltd | Air conditioner |
| CN201327150Y (en) * | 2008-12-10 | 2009-10-14 | 珠海格力电器股份有限公司 | Device capable of simulating natural wind |
| CN103244448A (en) * | 2013-05-22 | 2013-08-14 | 湖南工业大学 | Natural wind simulating fan and method |
| CN103954019A (en) * | 2014-03-24 | 2014-07-30 | 美的集团股份有限公司 | Natural wind air-conditioner, natural wind air-conditioner system and control method for natural wind air-conditioner |
| CN104791276A (en) * | 2015-04-02 | 2015-07-22 | 高源� | Novel energy-saving electric fan |
| CN105588274A (en) * | 2015-11-06 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Natural wind control method and device |
| CN106369762A (en) * | 2016-10-08 | 2017-02-01 | 湖南大学 | Method for simulating natural wind of air-conditioner |
| CN106949080A (en) * | 2017-03-21 | 2017-07-14 | 莱克电气股份有限公司 | A kind of method and apparatus of natural wind simulating |
-
2020
- 2020-01-02 CN CN202010000543.9A patent/CN111120373B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029625A (en) * | 2004-07-13 | 2006-02-02 | Toshiba Electric Appliance Co Ltd | Air conditioner |
| CN201327150Y (en) * | 2008-12-10 | 2009-10-14 | 珠海格力电器股份有限公司 | Device capable of simulating natural wind |
| CN103244448A (en) * | 2013-05-22 | 2013-08-14 | 湖南工业大学 | Natural wind simulating fan and method |
| CN103954019A (en) * | 2014-03-24 | 2014-07-30 | 美的集团股份有限公司 | Natural wind air-conditioner, natural wind air-conditioner system and control method for natural wind air-conditioner |
| CN104791276A (en) * | 2015-04-02 | 2015-07-22 | 高源� | Novel energy-saving electric fan |
| CN105588274A (en) * | 2015-11-06 | 2016-05-18 | 青岛海信日立空调系统有限公司 | Natural wind control method and device |
| CN106369762A (en) * | 2016-10-08 | 2017-02-01 | 湖南大学 | Method for simulating natural wind of air-conditioner |
| CN106949080A (en) * | 2017-03-21 | 2017-07-14 | 莱克电气股份有限公司 | A kind of method and apparatus of natural wind simulating |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111963474A (en) * | 2020-08-31 | 2020-11-20 | 合肥托卡拉图科技有限公司 | Fan comfort wind speed regulating and controlling system based on multi-dimensional monitoring and analysis |
| CN113482962A (en) * | 2021-08-06 | 2021-10-08 | 中山市技佳传动科技有限公司 | Self-adaptive control system and method based on fan temperature |
| CN117386657A (en) * | 2023-12-12 | 2024-01-12 | 珠海格力电器股份有限公司 | Electric fan, control method and control device thereof, and computer readable storage medium |
| CN117386657B (en) * | 2023-12-12 | 2024-03-12 | 珠海格力电器股份有限公司 | Electric fan, control method and control device thereof, and computer readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111120373B (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111120373B (en) | Natural wind simulating fan and natural wind simulating method | |
| CN107165848A (en) | Fan and its control method and computer-readable storage medium based on sensing | |
| WO2019024825A1 (en) | Wall-mounted air conditioning indoor unit and control method thereof | |
| US4227645A (en) | Electronic air conditioner | |
| CN104697124B (en) | Air conditioner supplying natural wind and its control device and control method | |
| EP1309823B1 (en) | Method and system for controlling ventilation | |
| CN109442687A (en) | A kind of control method of air-conditioning, device, storage medium and air-conditioning | |
| CN108019901A (en) | A kind of orientation adjustment air-conditioning | |
| CN106765986B (en) | Air conditioner and air outlet control method thereof | |
| CN106705380A (en) | Indoor air temperature setting method and device of central air conditioner system | |
| CN111006368A (en) | Intelligent personalized air outlet system | |
| CN111023487A (en) | Single-person wind-sheltering intelligent customized air outlet method and system | |
| CN111075737A (en) | Fan with customized intelligent wind function | |
| CN204063452U (en) | Natural wind sampler, air-conditioner and air-conditioning system | |
| CN111780232A (en) | Air conditioner | |
| CN108019866A (en) | A kind of humidifier control method | |
| CN110925970A (en) | Target character wind power intelligent air-out system under multi-person scene | |
| CN110925990A (en) | Wind power following intelligent air outlet method and system in multi-person scene | |
| CN110925993A (en) | Fan with intelligent wind function | |
| KR20160084356A (en) | the fan heater with temperature control function according to humidity for growth and development of animals and plants | |
| CN210599524U (en) | Fan capable of automatically adjusting wind speed | |
| CN110989730A (en) | Intelligent customized air outlet system | |
| CN111765603B (en) | Intelligent preloading system and method for personalized hotel air conditioner parameters | |
| CN114992706B (en) | Comfort performance improving and adjusting device under local heating and control method | |
| TWI262281B (en) | Optimum environment algorithm based on game theory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |