Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "connected," "fixed," and the like are to be construed broadly, and for example, "fixed" may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The present embodiment proposes an air treatment apparatus capable of intake air and exhaust air, which is not limited in the treatment function of air, and for example, at least one of temperature adjustment, humidification, purification, circulation, and the like of air may be performed. The air treatment device includes, but is not limited to, an air conditioner, the air treatment device may also be a purifier, a humidifier, a fan, etc., and after the specific type of the air treatment device is determined, those skilled in the art will be aware of other components of the air treatment device, and will not be described herein.
As shown in fig. 1, fig. 1 shows the structure of an air treatment apparatus 100 in the present embodiment. The air treatment device 100 comprises a housing 1, an air supply member, an air guiding member 2, an adjusting member and a control means.
The top of shell 1 is provided with the air intake, and the bottom of shell 1 is provided with air outlet 11. The air outlet 11 may be configured in a bar shape, and may be in a straight bar shape. An air supply runner is arranged in the shell 1, and two ends of the air supply runner are respectively connected with an air inlet and an air outlet 11. The air supply member may be a fan, such as a cross-flow fan, an axial flow fan, or a centrifugal fan.
The air supply component is arranged on the air supply flow channel and is used for driving air in the air supply flow channel to move towards the air outlet 11. When the air supply component operates, air can be sucked from the air inlet and then output from the air outlet 11 after flowing through the air supply flow channel, so that the air outlet 11 supplies air outwards.
The adjusting member may be provided on the supply air flow path. The conditioning component may be a temperature conditioning assembly, a humidity conditioning assembly, or a decontamination assembly. The temperature regulation component is used for carrying out temperature regulation on the flowing through air flow, the humidity regulation component is used for carrying out humidity regulation on the flowing through air flow, and the purification component temperature regulation component is used for carrying out filtration purification on the flowing through air flow.
In this embodiment, the conditioning component is a temperature conditioning assembly comprising a first heat exchanger, the air treatment device further comprising a second heat exchanger and a compressor. The first heat exchanger is used for exchanging heat with indoor air. The second heat exchanger is used for exchanging heat with outdoor air. The compressor, the first heat exchanger and the second heat exchanger are connected with each other through a refrigerant pipeline. The compressor can drive the refrigerant to circulate between the first heat exchanger and the second heat exchanger, so that indoor and outdoor air heat exchange is realized.
The first heat exchanger may be disposed on the air supply flow channel, and the air flow exchanges heat with the first heat exchanger when flowing through the first heat exchanger, and when the air treatment device is in the heating mode, the first heat exchanger transfers heat to the air flow, so that the air outlet 11 can deliver hot air outwards, and when the air treatment device is in the cooling mode, the first heat exchanger transfers cold to the air flow, so that the air outlet 11 can deliver cold air outwards.
As shown in fig. 1 and 2, the air guiding member 2 is disposed at the air outlet 11, and the air guiding member 2 is used for turbulence of the air sent by the air sending member. The air guide member 2 is used as an air supply end device of the air treatment device to regulate and control the air supply sense. The air guiding member 2 includes a plurality of air guiding assemblies 21 and a connector 22. The connecting piece 22 is configured as a bar, which may be a straight bar. The connecting piece 22 is connected to the casing 1, and the extending direction of the connecting piece 22 is the same as the extending direction of the air outlet 11. The plurality of air guiding assemblies 21 are all connected to the connecting piece 22, and are sequentially arranged along the connecting piece 22.
As shown in fig. 3, the air guide assembly 21 includes a driving device 211 and an air guide piece 212. The driving device 211 is connected with the connecting piece 22 and the air guiding piece 212 respectively. The connecting piece 22 and the air guiding piece 212 are respectively arranged at two opposite sides of the driving device 211. The wind guide 212 is constructed in a sheet structure. One end of the air guide 212 is connected to the driving device 211. The connecting piece 22 may be connected above the air outlet 11, and the air guiding piece 212 is located at the front end of the air outlet 11. The plate surface of the air guide plate 212 is perpendicular to the extending direction of the air outlet 11. The plurality of air guide assemblies 21 are sequentially arranged along the extending direction of the air outlet 11, and the intervals between two adjacent air guide assemblies 21 can be the same. The air guide piece 212 is used for adjusting and controlling the air sense at the air outlet 11 of the air supply tail end of the air treatment device, so that the air outlet effect can be adjusted.
The driving means 211 comprise a resonant actuator. The resonant actuator may drive the wind deflector 212 to resonate to achieve turbulence. That is, the resonant actuator has the capability of driving the wind guiding plate 212 to resonate, and turbulence can be realized when the wind guiding plate 212 resonates, thereby improving the wind outlet feeling. The resonant actuator may be attached to one end of the wind blade 212.
It will be appreciated that "resonance" is also known as "resonance" and is the phenomenon known as resonance where the amplitude of forced vibration of the system is greatest when the frequency of the driving force and the natural frequency of the system are equal. Under the action of periodic external force, when the external force action frequency is the same as or very close to the natural oscillation frequency of the system, the amplitude of the oscillation system is increased sharply. The frequency at which resonance occurs is referred to as the "resonance frequency". In addition, the "natural frequency" is also called "natural frequency", when the object is free to vibrate, the displacement of the object changes along with time according to the sine or cosine law, the frequency of the vibration is irrelevant to the initial condition, and is only related to the inherent characteristics (such as mass, shape, material and the like) of the system, and the corresponding period is called the natural period. The natural frequency has no relation with external excitation and is a natural attribute of the structure. The natural frequency of the structure exists regardless of whether the structure is excited by the outside or not, but only when the structure is excited by the outside, the structure generates vibration response according to the natural frequency. In addition, "free vibration" refers to vibration occurring in a mechanical system after excitation or constraint is removed, the vibration is maintained only by elastic restoring force thereof, the vibration is gradually attenuated when damping occurs, and the frequency of the free vibration is only determined by the physical property of the system itself, which is called the natural frequency of the system.
In short, when the excitation frequency of the resonant actuator is the same as or close to the natural frequency of the wind guiding component 2, the resonance effect is utilized, the vibration generated by the wind guiding sheet 212 is called resonance, and the amplitude of the wind guiding sheet 212 is rapidly increased, so that the wind guiding sheet 212 can effectively disturb the flow, and the wind outlet sense is improved.
The resonant actuator is a piece of piezoelectric material. The piezoelectric material piece is a device for converting electric energy into mechanical energy for output by utilizing the inverse piezoelectric effect of the piezoelectric material. An alternating voltage is applied to the polarization direction of the piezoelectric material, and at this time, the piezoelectric material is periodically mechanically deformed in a certain direction (vibration direction as shown in fig. 3). When the excitation frequency of the piezoelectric material member is equal to or close to the natural frequency of the air guiding member 2, resonance (or resonance) occurs, and at this time, the amplitude of the air guiding sheet 212 (i.e., the vibration sheet shown in fig. 3) is rapidly increased, so that the air guiding sheet 212 can effectively disturb the flow, and improve the air-out feeling.
In some embodiments, the resonant actuator drives wind blade 212 to resonate at a resonant frequency greater than or equal to 1Hz. Therefore, the wind guide plate 212 can achieve better turbulence effect and improve the wind outlet sense. However, the dc brushless motor and the stepper motor for the general air conditioner cannot drive the air guide plate 212 to generate resonance with resonance frequency greater than 1Hz, and the air guide plate 212 cannot effectively disturb flow to improve the air-out feeling.
The piezoelectric material may be a piezoelectric actuator or a piezoelectric patch. The piezoelectric material may be, for example, a piezoelectric ceramic. Alternating voltage is applied to the polarization direction of the piezoelectric material piece, the piezoelectric material piece is deformed in a reciprocating manner by the inverse piezoelectric effect of the piezoelectric material piece, and the air guide piece 212 is driven to resonate, so that the purpose of turbulence is achieved. The piezoelectric sheet is a sheet-shaped body formed by piezoelectric materials, such as a piezoelectric film, and the piezoelectric film is a flexible, light and high-toughness plastic film, can be manufactured into objects with various thicknesses and large areas, belongs to one of piezoelectric material pieces, and can drive the piezoelectric film to generate inverse piezoelectric effect through alternating current so as to drive the air guide sheet 212 to generate resonance.
It should be noted that there are many ways to drive the wind guiding fin 212 to resonate by using the resonant actuator, for example, the resonant actuator may include an actuator driven by at least one of an electric, magnetic, mechanical, and temperature field to implement a reciprocating motion, so as to implement a flexible design. For example, the resonant actuator may include a piezoelectric actuator, and the resonant actuator is a piezoelectric plate by using the inverse piezoelectric effect, and the piezoelectric plate is reciprocally deformed by using the inverse piezoelectric effect to drive the wind guiding plate 212 to resonate, so as to achieve the purpose of turbulence. The piezoelectric sheet is a sheet body formed by piezoelectric materials, such as a piezoelectric film, and the piezoelectric film is a flexible, light and high-toughness plastic film, can be made into objects with various thicknesses and large areas, belongs to one of the piezoelectric materials, and can be driven by alternating current to generate inverse piezoelectric effect, so that the air guide sheet 212 is driven to resonate.
However, the present invention is not limited thereto, and the resonant actuator may drive the wind guiding plate 212 to resonate in other ways, such as the following examples, but the present invention is not limited thereto.
For example, the resonance actuator includes an electrostrictive actuator, and the wind guide 212 is driven to resonate by the electrostrictive effect.
Specifically, the electrostrictive effect refers to a phenomenon in which a dielectric medium is elastically deformed in an electric field. This phenomenon can be explained by the fact that a dielectric, when placed in an electric field, polarizes its molecules, and the positive pole of one molecule engages the negative pole of the other along the direction of the electric field. The whole dielectric medium is contracted in this direction due to the mutual attraction of the positive and negative electrodes until the elastic force inside the dielectric medium is balanced with the electric attraction. In short, the electrostrictive material may be connected to the air guiding sheet 212, and the electrostrictive material may be driven to deform by the alternating current, so as to drive the air guiding sheet 212 to resonate.
Furthermore, the electrostrictive effect differs from the inverse piezoelectric effect in that the inverse piezoelectric effect is a linear response effect of the primary term and can only occur in solid dielectrics without a center of symmetry. The piezoelectric constant is a third-order tensor, and the physical parameter describing the anisotropic dielectric electrostriction effect is a fourth-order tensor. In a non-piezoelectric dielectric, only the electrostrictive effect occurs, and in a piezoelectric body, the piezoelectric effect and the electrostrictive effect occur simultaneously. In general, the strain induced by the electrostrictive effect is several orders of magnitude smaller than the inverse piezoelectric effect of the piezoelectric body.
For example, the resonance actuator includes a magnetostrictive actuator that drives the wind guide plate 212 to resonate by a magnetostrictive effect.
Specifically, the magnetostrictive effect is a ferromagnetic material, which is a material whose dimension changes significantly when the current passing through a coil changes or the distance from a magnet changes, and is generally called a magnetostrictive material, when an object is magnetized in a magnetic field and is elongated or shortened in the magnetization direction. The dimensional change is much larger than that of the existing magnetostriction materials such as ferrite and the like, and the generated energy is also large, so that the magnetostriction material is called as a giant magnetostriction material.
The magnetostrictive material can change its length under the action of magnetic field, and can be displaced to apply work or can be repeatedly stretched and shortened under the action of alternating magnetic field so as to produce vibration. In short, the magnetostrictive material may be connected to the air guiding sheet 212, and the magnetostrictive material is driven to deform by the alternating magnetic field, so as to drive the air guiding sheet 212 to resonate.
For example, the resonant actuator includes a memory alloy actuator that deforms through a shape memory alloy to drive the wind guide blade 212 into resonance.
Specifically, the shape memory alloy (Shape Memory Alloys) is SMA for short, can generate martensitic transformation under the drive of an external field (such as a temperature field, a stress field, a magnetic field and the like) so as to further display shape memory effect and superelasticity, outputs force and moves outwards, is an advanced intelligent material integrating temperature sensing and intelligent driving, and has the characteristics of unique shape memory effect, pseudo-elasticity of phase transformation and the like. The shape memory alloy has three characteristics of large deformation amount, large degree of freedom in the displacement direction and rapid occurrence of displacement. Therefore, the device has the characteristics of larger displacement, high power-weight ratio, rapid displacement and free direction. In short, the shape memory alloy may be connected to the air guiding plate 212, and the air guiding plate 212 may be driven to resonate by changing the temperature field by heating or cooling.
For example, the resonant actuator includes an electrorheological fluid actuator that resonates the wind blade 212 by electrorheological fluid deformation.
Specifically, electrorheological fluid (ERF) is an intelligent material, and its viscosity changes with the intensity of an applied electric field. Without an electric field, electrorheological fluid can flow freely like a normal liquid, essentially a Newtonian fluid. When the strength of the applied electric field reaches a certain value, the property of the electrorheological fluid is obviously changed, the viscosity of the liquid is increased, the fluidity is gradually lacked, the shearing resistance is enhanced, the liquid is quickly converted into a quasi-solid state, the liquid is quickly recovered after the electric field is removed, the state change can be realized only in milliseconds, and the conversion is completely reversible. Briefly, an electrorheological fluid may be coupled to wind scooper 212 to drive wind scooper 212 into resonance via an alternating electric field.
For example, the resonant actuator includes a servo actuator, which may be a hydraulic actuator capable of converting hydraulic energy from a hydraulic source into mechanical energy, or may be servo-controlled by a displacement sensor or a travel switch provided on the product itself, as required. The device is used for executing the command of the main controller, controlling the speed, direction, displacement and force of the load, and simultaneously feeding back the signal output force to the main controller, and has the characteristics of large signal output force, accurate running position, small volume and the like. In short, the servo actuator may be connected to the wind guiding plate 212 to drive the wind guiding plate 212 to resonate.
It can be understood that the installation direction of the air guiding plate 212 at the air outlet 11 can be changed to adjust the vibration direction of the air guiding plate 212, so as to perform turbulence in different directions. According to the control method, the air treatment equipment can generate wind with different wind senses by controlling the air guide groups to work in the same or different turbulence modes, so that user experience is improved, different wind outlet senses can be provided for different users when the number of people in the space where the air treatment equipment is located is large, and air conditioning wind is provided for the users more pertinently.
In some embodiments, the resonant actuator drives wind blade 212 to resonate at a resonant frequency greater than or equal to 1Hz. Therefore, the wind guide plate 212 can achieve better turbulence effect and improve the wind outlet sense.
The resonant actuator drives the wind-guiding plate 212 to resonate at a resonant frequency of 1Hz-100Hz. That is, the resonant actuators with the resonant frequencies of 1Hz-100Hz (e.g., 1Hz, 10Hz, 20Hz, 30Hz, 40Hz, 50Hz, 60Hz, 70Hz, 80Hz, 90Hz, 100Hz, etc.) can be selected according to the needs, and the air guide plate 212 matched with the resonant actuators with the natural frequencies is driven to resonate, so as to meet different requirements of air-out wind sensation.
Further, a resonant actuator with a resonant frequency of 10Hz-80Hz (e.g., 10Hz, 20Hz, 30Hz, 40Hz, 50Hz, 60Hz, 70Hz, 80Hz, etc.) may be selected, and the natural frequency is driven to resonate with the wind guiding plate 212 matched with the resonant actuator, so as to meet different requirements of wind-out wind sensation. Of course, the present invention is not limited thereto, and in other embodiments, the resonant frequency of the resonant actuator driving wind guiding plate 212 may be greater than 100Hz, which is not described herein.
The resonant actuator is a piezoelectric material, and alternating voltage is applied to the polarization direction of the piezoelectric material, and at this time, the piezoelectric material will generate inverse piezoelectric effect to generate periodic mechanical deformation in a certain direction. When the excitation frequency of the piezoelectric material piece is equal to or close to the natural frequency of the air guide component 2, resonance (or resonance) occurs, and at this time, the vibration amplitude of the air guide piece 212 is increased sharply, so that the air guide piece 212 can effectively disturb flow, and the air outlet sense is improved.
The control device is electrically connected to the air supply member, the air guide member 2, and the adjustment member. The control device is electrically connected to opposite ends of the resonant actuator in the polarization direction. The control device controls the vibration amplitude and the vibration frequency of the vibration of the wind-guiding sheet 212 driven by the resonance actuator by sending a driving signal to the resonance actuator. The driving signal may be a voltage pulse signal, which may be an alternating voltage signal.
The control device controls the vibration amplitude of the wind guide plate 212 by controlling the voltage amplitude of the driving signal. When the wind outlet speeds of the air outlets 11 of the air treatment equipment are the same, the larger the absolute value of the voltage of the driving signal is, the larger the amplitude of the vibration of the air guide plate 212 is driven by the resonant actuator when the driving signal is received.
The control device controls the frequency of vibration of the wind scooper 212 by controlling the frequency of the driving signal. For example, when the driving signal is a voltage pulse signal, the resonant actuator receives a pulse of the driving signal and drives the wind guiding plate 212 to swing once to one side, the swing direction is determined by the positive and negative of the pulse, the wind guiding plate 212 swings to one side when the pulse is a positive pulse, and the wind guiding plate 212 swings to the other side when the pulse is a negative pulse.
The control device can control the resonant actuator to drive the wind guide plate 212 to swing according to preset vibration amplitude and preset frequency by sending a driving signal to the resonant actuator, so that the air treatment device can output wind with different wind senses. When the wind guide plate 212 vibrates according to different vibration frequencies and/or different vibration amplitudes, the wind guide component 2 can process the airflow output by the air outlet 11 to form wind with different wind senses, and the wind speeds and/or turbulences of the wind with different wind senses are different. The air treatment device outputs wind with different wind senses in different air supply modes. For example, the air guide member 2 can simulate the natural wind sense, the wind without the wind sense, and the wind with the pulsation wind sense after processing the air flow outputted from the air outlet 11.
As shown in fig. 4, the present embodiment also proposes a control method of an air treatment apparatus, which is implemented based on the above-described air treatment apparatus. The control method comprises the following steps:
Step S1, a control device receives a wind sense adjusting instruction and enters step S2;
The air supply means is in an operating state so that the air outlet 11 of the air treatment device supplies air to the outside. The air outlet volume of the air outlet 11 can be freely set by a user. For example, the air treatment device is provided with a plurality of air volume steps, and different air volume steps correspond to different air volume of the air outlet 11. The user can select one of the air volume gears to set the air outlet volume of the air outlet 11.
The user can send the wind sense adjusting instruction to the control device of the air treatment equipment through a remote controller or a mobile terminal, and the mobile terminal can be a mobile phone, a tablet computer or an intelligent sound box. The wind sense adjusting instruction is used for instructing the resonant actuator to drive the wind guiding plate 212 to resonate so as to adjust the wind sense of the airflow output by the air outlet 11 of the air treatment device.
Step S2, the control device acquires an aperiodic signal;
An aperiodic signal is a signal whose amplitude and/or frequency changes aperiodically over time. The non-periodic signal may be a signal that continuously fluctuates in time, the amplitude and frequency of the non-periodic signal not periodically changing over time. The frequency of the non-periodic signal varies with time. The non-periodic signal may be an audio signal or a wind speed sample signal of natural wind. The non-periodic signal may be pre-stored in a memory unit of the control device. Only one non-periodic signal can be stored in the memory cell, and the control device can read the non-periodic signal in the memory cell. The memory unit may store a plurality of non-periodic signals, the plurality of non-periodic signals being different from each other, and the control device may read one of the plurality of non-periodic signals in the memory unit according to a user instruction. The non-periodic signal may also be acquired in real time.
And step S3, the control device sends a driving signal to the resonant actuator, wherein the trend of the voltage peak value and/or the frequency of the driving signal along with the time is opposite to or the same as the trend of the frequency or the amplitude of the non-periodic signal along with the time, and the range of the frequency of the driving signal is the resonant frequency range of the air guide component 2.
The drive signal is a pulse voltage signal, preferably an alternating voltage signal. The control device sends a driving signal to the resonant actuator, and the resonant actuator generates reciprocating deformation when receiving the driving signal and drives the wind guide plate 212 to vibrate through the reciprocating deformation of the resonant actuator.
The resonance frequencies of the wind guide member 2 are generally plural, and the resonance frequencies of the wind guide plate 212 are respectively a first order resonance frequency, a second order resonance frequency, a third order resonance frequency. The wind scooper 212 is preferably a wind scooper 212 having a first order resonant frequency and a second order resonant frequency that are both within 100 Hz. The range of the frequency of the driving signal is the range of the resonance frequency of the air guiding component 2. The frequency of the driving signal is equal to any one of the first-order resonance frequency to the nth-order resonance frequency, preferably equal to the first-order resonance frequency. The resonant actuator drives the wind guiding plate 212 to swing at the same frequency as the driving signal, and the excitation frequency of excitation applied to the wind guiding plate 212 by the resonant actuator is equal to the resonant frequency of the wind guiding member 2, so that the wind guiding member 2 resonates.
The control device determines the voltage peak value of the driving signal and/or the trend of the frequency change with time according to the trend of the frequency or amplitude change with time of the non-periodic signal. The trend of the voltage peak and/or the frequency of the driving signal over time is opposite to the trend of the frequency or the amplitude of the non-periodic signal over time, or the trend of the voltage peak and/or the frequency of the driving signal over time is the same as the trend of the frequency or the amplitude of the non-periodic signal over time. In this way, the control device converts the non-periodic signal into a driving signal, and the control device transmits the driving signal to the resonant actuator to drive the wind-guiding plate 212 to vibrate.
The voltage peak value of the driving signal is positively correlated with the deformation amplitude of the resonant actuator, and the deformation amplitude of the resonant actuator is positively correlated with the vibration amplitude of the wind guide plate 212. When the trend of the voltage peak of the driving signal changes with time, the turbulence degree of the air flow output by the air outlet 11 by the air guide plate 212 changes with time, i.e. the resonance of the air guide plate 212 causes the wind speed and turbulence degree of the air flow to change with time, so that the softness degree of the air flow of the air outlet 11 changes with time, thereby simulating the wind with irregular change wind sensation. In some examples, the drive signal may also vary with the non-periodic signal acquired in real time, and the drive signal may vary with a delay, e.g., slightly delayed, relative to the non-periodic signal within a reasonable range such that the wind blade 212 oscillates with wind or music.
The frequency of the driving signal is the same as the excitation frequency of the resonant actuator to the wind guiding plate 212, i.e. the same as the vibration frequency of the wind guiding plate 212. When the frequency of the driving signal changes aperiodically with time, the turbulence degree of the air flow output by the air outlet 11 by the air guiding plate 212 changes aperiodically, that is, the wind speed and turbulence degree of the air flow change aperiodically due to the resonance of the air guiding component 2, so that the softness degree of the air flow of the air outlet 11 changes aperiodically, thereby simulating the wind with irregular change of wind sensation.
Similarly, when the voltage peak value and the frequency of the driving signal synchronously change in an aperiodic manner, the wind guide plate 212 changes the turbulence degree of the air flow output by the air outlet 11 in an aperiodic manner, and the softness degree of the air flow of the air outlet 11 changes in an aperiodic manner, so that wind with irregular wind sensation changes is simulated.
Because the trend of the voltage peak value and/or the frequency of the driving signal along with the time can determine the change of the wind softness, and the trend of the voltage peak value and/or the frequency of the driving signal along with the time is determined by the non-periodic signal, different non-periodic signals can be input to control the change of the wind softness, so that personalized and differential wind is created.
The wind guiding piece 212 of the wind guiding component 2 redistributes the wind field at the air outlet 11 through resonance, so as to build wind with irregular variation wind sensation, and the resistance of the wind guiding component 2 to the air flow output by the air outlet 11 is very small, so that the air quantity of the air outlet 11 of the air treatment equipment is not influenced.
In an exemplary embodiment, the voltage peaks of the driving signals at the corresponding time points correspond to the frequencies of the non-periodic signals, and the voltage peaks of the driving signals may be positively or negatively correlated with the frequencies of the non-periodic signals corresponding thereto. The corresponding time point may be the same time point on the driving signal and the non-periodic signal, or the time point of the driving signal corresponds to the time point of the non-periodic signal delayed by a preset period of time. The corresponding time point of the driving signal may be the same time point as the non-periodic signal or a time point delayed, e.g. slightly delayed, within a reasonable range with respect to the non-periodic signal, the time point of the non-periodic signal may be the time point when the signal is acquired in real time or the time point when the stored non-periodic signal is read. For example, the voltage peak of the driving signal is equal to the frequency of the non-periodic signal corresponding thereto multiplied by the first preset coefficient. The first preset coefficient is negative, and the trend of the voltage peak value of the driving signal changing along with time is opposite to the trend of the frequency of the non-periodic signal changing along with time. The first preset coefficient is positive, and the trend of the voltage peak value of the driving signal changing along with time is the same as the trend of the frequency of the non-periodic signal changing along with time. Thus, when the frequency of the non-periodic signal increases with time, the voltage peak value of the driving signal also increases with time, the degree of softening of wind output by the air treatment device increases, and when the frequency of the non-periodic signal decreases with time, the voltage peak value of the driving signal also decreases with time, and the degree of softening of wind output by the air treatment device decreases.
In an exemplary embodiment, the voltage peak of the driving signal at the corresponding time point corresponds to the amplitude of the non-periodic signal, and the voltage peak of the driving signal may have a positive correlation or a negative correlation with the amplitude of the non-periodic signal corresponding thereto. For example, the voltage peak of the driving signal is equal to the amplitude of the non-periodic signal corresponding thereto multiplied by the second preset coefficient. The second preset coefficient is negative, and the trend of the voltage peak value of the driving signal changing along with time is opposite to the trend of the amplitude of the non-periodic signal changing along with time. And if the second preset coefficient is positive, the trend of the voltage peak value of the driving signal changing along with time is the same as the trend of the amplitude of the non-periodic signal changing along with time. Thus, when the frequency of the non-periodic signal is reduced with time, the voltage peak value of the driving signal is increased with time, the degree of softening of wind output by the air treatment equipment is increased, and when the frequency of the non-periodic signal is increased with time, the voltage peak value of the driving signal is reduced with time, and the degree of softening of wind output by the air treatment equipment is reduced.
In an exemplary embodiment, the range of values of the frequencies of the non-periodic signals is divided into a plurality of frequency ranges that do not overlap each other, and each frequency range is a continuous interval. The different frequency ranges correspond to different orders of the resonant frequencies of the wind guiding member 2, and the larger the frequency range corresponds to the higher order resonant frequency. The frequency of the driving signal at the corresponding time point corresponds to the frequency of the non-periodic signal, and the frequency of the driving signal is equal to the resonance frequency of the air guide member 2 corresponding to the frequency range to which the frequency of the non-periodic signal corresponding thereto belongs.
For example, the frequency values in the first frequency range, the second frequency range, and the third frequency range are sequentially increased. The first frequency range corresponds to a first order resonance frequency of the wind guiding member 2, the second frequency range corresponds to a second order resonance frequency of the wind guiding member 2, and the third frequency range corresponds to a third order resonance frequency of the wind guiding member 2. The frequency of the non-periodic signal belongs to the first frequency range, and the frequency of the driving signal at the corresponding time point is equal to the first-order resonance frequency of the wind guiding member 2. The frequency of the non-periodic signal belongs to the second frequency range, and the frequency of the driving signal at the same point in time is equal to the second order resonance frequency of the wind guiding member 2. The frequency of the non-periodic signal belongs to the third frequency range, and the frequency of the driving signal at the corresponding time point is equal to the third-order resonance frequency of the wind guiding member 2.
Thus, when the frequency of the non-periodic signal is reduced with time, the frequency of the driving signal is reduced with time, the degree of softening of wind output by the air treatment device is reduced, and when the frequency of the non-periodic signal is increased with time, the frequency of the driving signal is increased with time, and the degree of softening of wind output by the air treatment device is increased.
In an exemplary embodiment, the range of values of the frequencies of the non-periodic signals is divided into a plurality of frequency ranges that do not overlap each other, and each frequency range is a continuous interval. The different frequency ranges correspond to different orders of the resonant frequencies of the wind guiding member 2, and the smaller the frequency range corresponds to the higher order resonant frequency. The frequency of the driving signal at the corresponding time point corresponds to the frequency of the non-periodic signal, and the frequency of the driving signal is equal to the resonance frequency of the air guide member 2 corresponding to the frequency range to which the frequency of the non-periodic signal corresponding thereto belongs.
Thus, when the frequency of the non-periodic signal is reduced with time, the frequency of the driving signal is increased with time, the degree of softening of the wind output by the air treatment device is increased, and when the frequency of the non-periodic signal is increased with time, the frequency of the driving signal is reduced with time, and the degree of softening of the wind output by the air treatment device is reduced.
In an exemplary embodiment, the range of values of the amplitude of the non-periodic signal is divided into a plurality of mutually non-overlapping amplitude ranges, each of which is a continuous interval. The different amplitude ranges correspond to the resonance frequencies of the wind guiding member 2 of different orders, and the amplitude range with a larger amplitude corresponds to the resonance frequency with a higher order. The frequency of the driving signal at the corresponding point in time corresponds to the amplitude of the non-periodic signal, and the frequency of the driving signal is equal to the resonance frequency of the air guiding member 2 corresponding to the amplitude range to which the amplitude of the non-periodic signal corresponding thereto belongs.
For example, the frequency values in the first amplitude range, the second amplitude range, and the third amplitude range are sequentially increased. The first amplitude range corresponds to a first order resonance frequency of the wind guiding member 2, the second amplitude range corresponds to a second order resonance frequency of the wind guiding member 2, and the third amplitude range corresponds to a third order resonance frequency of the wind guiding member 2. The amplitude of the non-periodic signal belongs to the first amplitude range, and the frequency of the driving signal at the corresponding time point is equal to the first-order resonance frequency of the wind guiding component 2. The amplitude of the non-periodic signal belongs to the second amplitude range, and the frequency of the driving signal at the corresponding time point is equal to the second order resonance frequency of the wind guiding member 2. The amplitude of the non-periodic signal belongs to the third amplitude range, and the frequency of the driving signal at the corresponding time point is equal to the third-order resonance frequency of the wind guiding member 2.
Thus, when the amplitude of the non-periodic signal is reduced with time, the frequency of the driving signal is reduced with time, the degree of softening of the wind output by the air treatment device is reduced, and when the amplitude of the non-periodic signal is increased with time, the frequency of the driving signal is increased with time, and the degree of softening of the wind output by the air treatment device is increased.
In an exemplary embodiment, the range of values of the amplitude of the non-periodic signal is divided into a plurality of mutually non-overlapping amplitude ranges, each of which is a continuous interval. The different amplitude ranges correspond to different orders of the resonance frequency of the wind guiding member 2, and the smaller the amplitude range corresponds to the higher order of the resonance frequency. The frequency of the driving signal at the corresponding point in time corresponds to the amplitude of the non-periodic signal, and the frequency of the driving signal is equal to the resonance frequency of the air guiding member 2 corresponding to the amplitude range to which the amplitude of the non-periodic signal corresponding thereto belongs.
Thus, when the amplitude of the non-periodic signal is reduced with time, the frequency of the driving signal is increased with time, the degree of softening of the wind output by the air treatment device is increased, and when the amplitude of the non-periodic signal is increased with time, the frequency of the driving signal is reduced with time, and the degree of softening of the wind output by the air treatment device is reduced.
In an exemplary embodiment, the non-periodic signal is a fundamental frequency signal of a music signal. The step S2 includes that the control device extracts a fundamental frequency signal from the music signal, and takes the fundamental frequency signal as an aperiodic signal.
In step S3, the control device sends a driving signal to the resonant actuator, wherein the trend of the voltage peak and/or the frequency of the driving signal over time is opposite to or the same as the trend of the frequency of the fundamental frequency signal over time.
The fundamental frequency is a harmonic component of a composite vibration or waveform (e.g., acoustic wave). The fundamental frequency typically has a lowest frequency and a maximum amplitude. The algorithm for extracting the fundamental frequency signal from the music signal may be a YIN algorithm, a SWIPE algorithm, a CREPE algorithm, or a SPICE algorithm. The fundamental frequency can be used to determine the mode and melody of the music. When the fundamental frequency signal of the music is used as the non-periodic signal and the frequency of the fundamental frequency signal of the music is used for determining the trend of the voltage peak value and/or the frequency of the driving signal along with the time change, the trend of the voltage peak value and/or the frequency of the driving signal along with the time change accords with the change of the melody of the music, so that the softness degree of the air flow output by the air outlet 11 can change according to the melody of the music, and the change of the air flow output by the air outlet 11 is more coordinated. Meanwhile, a plurality of kinds of music can be stored in the storage unit of the control device in advance, and a user can select different music to obtain different wind sensations according to the needs.
In an exemplary embodiment, the air treatment device further comprises a speaker. The speaker is electrically connected to the control device. The control device is provided with an audio decoder which can decode the music file into a music signal and send the music signal to the loudspeaker for playing.
Step S3 further includes, when the control device sends a driving signal to the resonant actuator, sending a music signal to the speaker synchronously to drive the speaker to play music, where a trend of a voltage peak and/or a frequency of the driving signal over time and a frequency of a fundamental frequency signal of the music signal.
The air treatment device can play music at one side, synchronously adjust the flexibility degree of the air flow output by the air outlet 11 according to the melody of the music, and improve the user experience.
In one illustrative embodiment, the non-periodic signal is a wind speed sample signal of natural wind.
In step S3, the control device sends a driving signal to the resonant actuator, wherein the trend of the voltage peak value and/or the frequency of the driving signal over time is opposite to the trend of the amplitude of the wind speed sample signal over time.
The wind speed sample signal of natural wind may be a time-dependent plot of wind speed of natural wind. The magnitude of the wind speed sample signal may be indicative of the wind speed value of the natural wind. Wind speed sample signals of natural wind may be acquired by an anemometer. The wind speed sample signal of natural wind may be stored in advance in the storage unit of the control device.
When the wind speed sample signal of natural wind is used as an aperiodic signal and the amplitude of the wind speed sample signal of natural wind is used for determining the trend of the voltage peak value and/or the frequency of the driving signal along with the time, the trend of the voltage peak value and/or the frequency of the driving signal along with the time is opposite to the trend of the amplitude of the wind speed sample signal. When the amplitude of the wind speed sample signal of the natural wind is increased, the wind speed value of the natural wind is increased, at the moment, the voltage peak value and/or the frequency of the driving signal are/is reduced according to the increase of the amplitude of the natural wind, so that the flexibility degree of the air flow output by the air outlet 11 can be reduced, and the user can feel that the air flow output by the air outlet 11 is increased, conversely, when the amplitude of the wind speed sample signal of the natural wind is reduced, the wind speed value of the natural wind is reduced, at the moment, the voltage peak value and/or the frequency of the driving signal are/is increased according to the decrease of the amplitude of the natural wind, so that the flexibility degree of the air flow output by the air outlet 11 can be increased, and the air flow is softer. Thereby realizing that the air treatment equipment can simulate the wind which is perceived by natural wind according to the wind speed sample signal of natural wind. Meanwhile, the wind speed sample signals of various natural winds can be stored in the storage unit of the control device in advance, and a user can select different wind speed sample signals of the natural winds according to the needs to obtain wind with different natural wind senses.
In an exemplary embodiment, the air treatment device further comprises a communication module. The communication module is electrically connected to the control device. The communication module can be a wireless communication module or a wired communication module. The communication module may be connected to an information network, which may be a local area network or the world wide web.
The air processing equipment can be connected with the information network through the communication module, and the non-periodic signals can be obtained from the information network in real time. For example, the control device acquires a music signal, such as a music broadcast, from the information network in real time through the communication module, and determines a voltage peak value of the driving signal and/or a trend of frequency variation with time according to a trend of frequency variation with time of a fundamental frequency signal of the music signal.
For example, a plurality of anemometers are respectively arranged in different areas, the anemometers collect wind speed sample signals of natural wind in the areas where the anemometers are located, and the anemometers upload the collected real-time wind speed sample signals to an information network. The user may send a region-specific instruction to the air treatment device to specify a wind sensation that simulates the natural wind of a specified region.
In step S2, after receiving the command of the specified region, the control device may download, from the information network, a wind speed sample signal of natural wind collected by the anemometer of the region according to the region specified by the command of the specified region, and determine, according to a trend of amplitude of the wind speed sample signal over time, a trend of a voltage peak value and/or a frequency of a driving signal over time, and drive the resonant actuator with the driving signal, so that a wind sensation of an airflow output by the air processing device is consistent with a wind sensation of natural wind of the specified region.
In an exemplary embodiment of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a program product capable of implementing the control method described above in the present specification. In some possible embodiments, the various aspects of the invention may also be implemented in the form of a program product comprising program code for causing a terminal device to carry out the steps according to the various exemplary embodiments of the invention as described in the "exemplary methods" section of this specification, when said program product is run on the terminal device.
A program product for implementing the above-described control method according to an embodiment of the present invention may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto, and in this document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can be, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of a readable storage medium include an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The computer readable signal medium may include a data signal propagated in baseband or as part of a carrier wave with readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Program code for carrying out operations of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the insurer computing device, partly on the insurer device, as a stand-alone software package, partly on the insurer computing device, partly on a remote computing device, or entirely on a remote computing device or server. In the case of remote computing devices, the remote computing device may be connected to the insurance client computing device through any kind of network, including a Local Area Network (LAN) or Wide Area Network (WAN), or may be connected to an external computing device (e.g., connected over the internet using an internet service provider).
It should be noted that although in the above detailed description several modules or units of a device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit in accordance with embodiments of the present disclosure. Conversely, the features and functions of one module or unit described above may be further divided into a plurality of modules or units to be embodied.
Furthermore, although the steps of the methods in the present disclosure are depicted in a particular order in the drawings, this does not require or imply that the steps must be performed in that particular order, or that all illustrated steps be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
From the above description of embodiments, those skilled in the art will readily appreciate that the example embodiments described herein may be implemented in software, or may be implemented in software in combination with the necessary hardware. Thus, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (may be a CD-ROM, a U-disk, a mobile hard disk, etc.) or on a network, and includes several instructions to cause a computing device (may be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the control method according to the embodiments of the present disclosure. The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the specification and drawings of the present invention or direct/indirect application in other related technical fields are included in the scope of the present invention.