CN109654694B

CN109654694B - Control method and device for direct-blowing-preventing air conditioner, storage medium and computer equipment

Info

Publication number: CN109654694B
Application number: CN201811639551.7A
Authority: CN
Inventors: 于洋; 张桂芳; 程永甫
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Haier Smart Home Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2021-03-16
Anticipated expiration: 2038-12-29
Also published as: CN109654694A; WO2020135831A1

Abstract

The embodiment of the invention discloses a control method and device of a direct-blowing prevention air conditioner, a storage medium and computer equipment, and belongs to the technical field of air conditioners. The air conditioner comprises a driving mechanism, a lens and an infrared pyroelectric sensor, wherein the driving mechanism is used for driving the lens so as to change the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor. The control method comprises the following steps: and controlling a driving mechanism to enable the distance between the lens and the pyroelectric sensitive element of the infrared pyroelectric sensor to change within a first set distance range, acquiring the existence state of personnel in a set area, and when the existence state of the personnel is the existence of the personnel, determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance, and controlling the air conditioner according to the set air deflector angle. By adopting the technical scheme, the manufacturing cost can be reduced.

Description

Control method and device for direct-blowing-preventing air conditioner, storage medium and computer equipment

Technical Field

The invention relates to the technical field of air conditioners, in particular to a control method of an air conditioner, a device storage medium and computer equipment.

Background

The infrared pyroelectric sensor can judge the existence condition of personnel in a set area according to the received infrared rays, namely, the infrared pyroelectric sensor can only be used for determining that the personnel are located in the set area and cannot determine the specific position of the personnel. Because of low price, the door lock is generally installed on doorways and used for burglar alarm, visitor notification and the like of life.

On the air conditioner of present anti-blow-through function, often need determine user's specific position, the air-out direction of air conditioner is calculated to rethread user's specific position, user's height etc.. If the specific position of the user is obtained, the existing infrared pyroelectric sensor can only detect the moving personnel, and if the personnel in a static state are detected, an additional sensor is needed, so that the manufacturing cost is increased.

Disclosure of Invention

The embodiment of the invention provides a control method of a direct-blowing prevention air conditioner, which can acquire static personnel based on an infrared pyroelectric sensor, achieves the technical effect of direct-blowing prevention and reduces the manufacturing cost.

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.

According to a first aspect of embodiments of the present invention, there is provided a control method of a blow-through preventing air conditioner.

In an alternative embodiment, the air conditioner includes a driving mechanism, a lens and an infrared pyroelectric sensor, the driving mechanism is used for driving the lens to change the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor, and the control method includes:

controlling the driving mechanism to enable the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor to change within a first set distance range;

acquiring the existence state of personnel in a set area;

when the personnel existence state is that the personnel exists, determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and controlling the air conditioner according to the set air deflector angle.

In an alternative embodiment, the controlling the driving mechanism to make the distance between the lens and the pyroelectric sensitive element of the infrared pyroelectric sensor vary within a first set distance range to obtain the presence state of the person in a set area includes:

controlling the driving mechanism to continuously move in a second time;

acquiring the existence state of a first person in the set area through the infrared pyroelectric sensor;

controlling the driving mechanism to be still all the time in a third time;

acquiring the existence state of a second person in the set area through the infrared pyroelectric sensor;

and determining the existence state of the actual person according to the existence state of the first person and the existence state of the second person.

In an optional implementation, the determining an actual person presence state according to the first person presence state and the second person presence state includes:

when the first person existing state is the person existing state, if the second person existing state is the person existing state in a first time period before the first time, the actual person existing state is the person existing state.

In an optional implementation manner, before acquiring the presence status of the person in the set area, the method further includes:

controlling the driving mechanism according to a set strategy to adjust the distance between the lens and a pyroelectric sensitive element of the infrared sensor;

when the person presence state is a person presence, the method further comprises the following steps:

acquiring a fourth distance between the lens and the infrared sensor;

and determining the set area according to the fourth distance.

According to a second aspect of the embodiments of the present invention, there is provided a control device of a blow-through preventing air conditioner.

In an alternative embodiment, a control device of a blow-through preventing air conditioner, the air conditioner including a driving mechanism, a lens and an infrared pyroelectric sensor, the driving mechanism being configured to drive the lens to change a distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor, the control device comprising:

the fourth control module is used for controlling the driving mechanism so that the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor is changed within a first set distance range;

the sixth acquisition module is used for acquiring the existence state of the personnel in the set area;

the fifth determining module is used for determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height when the personnel existence state is that personnel exists, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and the fifth control module is used for controlling the air conditioner according to the set air deflector angle.

In an optional implementation manner, the fourth control module and the sixth obtaining module are specifically configured to:

controlling the driving mechanism to continuously move in a second time;

controlling the driving mechanism to be still all the time in a third time;

In an optional implementation, the determining an actual person presence state according to the first person presence state and the second person presence state includes: when the first person existing state is the person existing state, if the second person existing state is the person existing state in a first time period before the first time, the actual person existing state is the person existing state.

In an optional embodiment, the method further comprises:

the third adjusting module is used for controlling the driving mechanism according to a set strategy to adjust the distance between the lens and the pyroelectric sensitive element of the infrared sensor before the existence state of the person in the set area is acquired;

a seventh obtaining module, configured to obtain a fourth distance between the lens and the infrared sensor when the person presence state is that a person is present;

and the sixth determining module is used for determining the set area according to the fourth distance.

According to a third aspect of embodiments of the present invention, there is provided a computer apparatus.

In an alternative embodiment, the computer device includes a memory, a processor, and a program stored in the memory and executable by the processor, and the processor implements the control method of the anti-blow-through air conditioner when executing the program.

According to a fourth aspect of embodiments of the present invention, there is provided a storage medium.

In an alternative embodiment, the storage medium has a computer program stored thereon, and the computer program, when executed by a processor, implements the aforementioned control method of the blow-through air conditioner.

The embodiment of the invention has the beneficial effects that: personnel in a static state can be acquired based on the infrared pyroelectric sensor, the technical effect of preventing direct blowing is achieved, and the manufacturing cost is reduced. When the distance between the lens and the pyroelectric sensing element of the pyroelectric sensor changes, the area corresponding to a scene focused on the pyroelectric sensing element changes, namely, the infrared rays radiated by the same area shift at the focusing position of the pyroelectric sensing element through the lens along with the change of the distance between the lens and the pyroelectric sensing element of the pyroelectric sensor, so that the local temperature of the pyroelectric sensing element is changed, the output current of the pyroelectric sensing element changes, the output signal of the pyroelectric infrared sensor changes, and the static person in the set area can be detected. When a user exists in the set area of the infrared pyroelectric sensor, the angle of the air deflector of the air conditioner is controlled, so that the distance between the air supply direction of the air deflector and the person is larger than or equal to the set deviation distance, and the set deviation distance can ensure that the person is out of the violent air flow range. When a person is in the set area, the minimum distance between the air supply direction and the person is also greater than or equal to the set deviation distance, for example, when the air conditioner is controlled to supply air to the direction of the side, farthest from the air conditioner, of the set area, if the person is in the side, farthest from the air conditioner, of the set area, the distance between the person and the air supply direction is the minimum distance, and the minimum distance is greater than or equal to the set deviation distance; or, when the air conditioner is controlled to blow air in the direction of the set area closest to the air conditioner, if the person is in the set area closest to the air conditioner, the distance between the person and the air blowing direction is the minimum distance, and the minimum distance is larger than or equal to the set deviation distance. When the distance between air supply direction and the personnel is for setting for the erroneous tendency distance, personnel can experience no wind-sensation, furtherly, when the perpendicular distance between air supply direction and the personnel is greater than when setting for the erroneous tendency distance, the personnel can not be blown to the air outlet of the air conditioner by necessity to realized preventing the effect of directly blowing on infrared pyroelectric sensor's basis, reduced the manufacturing cost of air conditioner.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic diagram illustrating the structure of an infrared pyroelectric sensor in accordance with an exemplary embodiment;

FIG. 2 is a schematic diagram illustrating the structure of a detection device according to an exemplary embodiment;

FIG. 3 is a schematic diagram illustrating the structure of a detection device according to an exemplary embodiment;

FIG. 4 is a schematic top view of a lattice Fresnel lens according to one exemplary embodiment;

FIG. 5 is a schematic diagram illustrating a steerable infrared pyroelectric sensor and steerable ranging device in accordance with an exemplary embodiment;

FIG. 6 is a flowchart illustrating a control method of a blow-through air conditioner according to an exemplary embodiment;

FIG. 7 is a block schematic diagram illustrating a control arrangement for a blow-through air conditioner in accordance with an exemplary embodiment;

FIG. 8 is a block schematic diagram illustrating a computer device in accordance with an exemplary embodiment.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.

As for the infrared pyroelectric sensor, as shown in fig. 1, it generally includes:

an optical filter 11 for forming an optical path of a set frequency;

a pyroelectric sensitive element 12;

the input end of the pre-amplifying circuit is connected with the output end of the pyroelectric sensitive element and is used for amplifying the output current of the pyroelectric sensitive element;

a lead 13 connected to the amplifying circuit as an output terminal of the pyroelectric sensor; and the combination of (a) and (b),

a cap 14 for enclosing the above components.

The pyroelectric sensitive element is similar to a plate capacitor taking a pyroelectric crystal as a dielectric medium, the dielectric coefficient of the dielectric medium is influenced by temperature, and when the temperature difference between two poles of the pyroelectric sensitive element changes, the charge density of the two poles of the pyroelectric sensitive element is changed, so that current is generated. Further, the temperature between the two electrodes of the pyroelectric sensing element changes because one electrode of the pyroelectric sensing element receives the changing infrared ray, and the energy difference between the changing infrared rays changes the temperature of the electrode. The infrared pyroelectric sensor is used for sensing the change of infrared rays in the set area, namely, the infrared pyroelectric sensor can detect the existence state of a person in the set area but cannot detect the specific position of the person in the set area.

In this context, based on the above features of the pyroelectric infrared sensor, an improvement is made in the control method, so that the pyroelectric infrared sensor is well applied to the blow-through preventing air conditioner.

In an alternative embodiment, a control method of a blow-through preventing air conditioner includes:

acquiring the existence state of personnel in a set area through an infrared pyroelectric sensor;

when the existence state of the personnel indicates that the personnel exist in the set area, determining a set air deflector angle according to the installation height of the air conditioner and a first distance between the set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance;

and controlling the air conditioner according to the set angle of the air deflector.

When a user exists in the set area of the infrared pyroelectric sensor, the angle of the air deflector of the air conditioner is controlled, so that the distance between the air supply direction of the air deflector and the person is larger than or equal to the set deviation distance, and the set deviation distance can ensure that the person is out of the violent air flow range. When a person is in the set area, the minimum distance between the air supply direction and the person is also greater than or equal to the set deviation distance, for example, when the air conditioner is controlled to supply air to the direction of the side, farthest from the air conditioner, of the set area, if the person is in the side, farthest from the air conditioner, of the set area, the distance between the person and the air supply direction is the minimum distance, and the minimum distance is greater than or equal to the set deviation distance; or, when the air conditioner is controlled to blow air in the direction of the set area closest to the air conditioner, if the person is in the set area closest to the air conditioner, the distance between the person and the air blowing direction is the minimum distance, and the minimum distance is larger than or equal to the set deviation distance. When the distance between air supply direction and the personnel is for setting for the erroneous tendency distance, personnel can experience no wind-sensation, furtherly, when the perpendicular distance between air supply direction and the personnel is greater than when setting for the erroneous tendency distance, the personnel can not be blown to the air outlet of the air conditioner by necessity to realized preventing the effect of directly blowing on infrared pyroelectric sensor's basis, reduced the manufacturing cost of air conditioner.

With regard to the steps: the personnel existence state in the set area is obtained through the infrared pyroelectric sensor, and the personnel existence state comprises two conditions of personnel existence and personnel nonexistence. The existence state of a person can be represented by the output signal of the infrared pyroelectric sensor, for example, the output signal of the infrared pyroelectric sensor is low level when the person is not detected, and the output signal of the infrared pyroelectric sensor is high level when the person is detected; or when the person is detected, the infrared pyroelectric sensor outputs a high level, and when the person is detected, the infrared pyroelectric sensor outputs a low level. Each infrared pyroelectric sensor is provided with a set detection area, a closed area can be formed between the detection area and the ground/wall surface, the closed area is the set area, or a plane where the detection range of the infrared pyroelectric sensor is intersected with the ground/wall surface is the set area. When the infrared pyroelectric sensor detects a person, the person is indicated to be located in the set area.

With regard to the steps: when the personnel existence state represents that personnel exist in the set area, the angle of the set air deflector is determined according to the installation height of the air conditioner and the first distance between the set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and the height of the set personnel, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance. After the air conditioner is installed, the installation height of the air conditioner is a fixed value, and the installation height of the air conditioner can be input into the controller by a user or an installation/maintenance person.

When the set area is a planar area, the setting a first distance between the area and the air conditioner includes: setting the distance between the edge of the area closest to the air conditioner and the air conditioner, or setting the distance between the edge of the area farthest from the air conditioner and the air conditioner, or setting the distance between the set center of the area and the air conditioner. The distance between the setting center of the setting area and the air conditioner may be the center of the setting area or the center of gravity of the setting area. When the set area is a plane intersecting the detection range of the infrared pyroelectric sensor and the ground/wall surface, and the infrared pyroelectric sensor is arranged on the air conditioner, the set area is in an oval shape, and the distance between the vertex of the long axis of the infrared pyroelectric sensor and the air conditioner is the distance between the edge of the set area closest to the air conditioner and the air conditioner or the distance between the edge of the set area farthest from the air conditioner and the air conditioner.

The above explains the first distance in terms of the set area. In terms of spatial structure, optionally, the first distance comprises: the distance between the projection of the air conditioner on the horizontal plane and the set area, or the straight-line distance between the air conditioner and the set area. Wherein, the projection of air conditioner in the horizontal plane and the distance between the settlement region include: the projection of the air conditioner on the horizontal plane and the distance between the projection of the air conditioner and the edge of the set area closest to the air conditioner; or the projection of the air conditioner on the horizontal plane and the distance between the edge of the set area farthest from the air conditioner; or the distance between the projection of the air conditioner on the horizontal plane and the set center of the set area. The straight-line distance between the air conditioner and the set area comprises: the linear distance between the air conditioner and the edge of the set area closest to the air conditioner; or, the straight-line distance between the air conditioner and the edge of the set area farthest from the air conditioner; or a straight distance between the air conditioner and a set center of the set area. When the distance between the air conditioner and the set area is measured, the air conditioner can be regarded as a point, the set area can be regarded as a plane, and the distance between the point and the plane is converted into the distance between the point and the plane through the explanation of the first distance, so that the measurement is convenient.

When the air conditioner supplies air to the direction of the set area closest to the air conditioner, the steps can be implemented as follows: when the personnel existence state represents that personnel exist in the set area, determining the angle of the set air deflector according to the installation height of the air conditioner and the first distance between the set area and the air conditioner; when the air conditioner supplies air to the direction of the farthest side of the set area from the air conditioner, the above steps may be implemented as: when the personnel existence state represents that personnel exist in the set area, the set air deflector angle is determined according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the height of the set personnel.

Regarding the height of the set personnel, when the existence state of the personnel is obtained only by using the infrared pyroelectric sensor, the specific heights of all the personnel using the air conditioner cannot be generally obtained, at the moment, the height of the set personnel can be set by a user or an installer/maintainer, the height of the set personnel is related to all the personnel using the air conditioner, optionally, the height of the set personnel is used for representing the maximum height of all the personnel using the air conditioner, and all the personnel using the air conditioner can be ensured to avoid direct blowing of the air conditioner; or the set personnel height is used for representing the average height of all personnel using the air conditioner, the air supply direction of the air conditioner cannot deviate from the personnel in the set area too far, and the better temperature adjusting effect can be experienced in the set area of all the personnel using the air conditioner. Optionally, the set height is the sum of the set height and a preset height, wherein the set height can be set by a user or an installer/maintainer, and the preset height is added to ensure that the distance between the air supply direction of the air conditioner and a person is greater than or equal to the set deviation distance, so as to achieve the effect of preventing direct blowing.

Optionally, the step of: according to the mounting height of air conditioner, set for the first distance between regional and the air conditioner and set for personnel's height and determine and set for the aviation baffle angle, include:

determining a first angle between the set direction and the vertical direction according to the first distance and a first height difference between the installation height and the set personnel height;

and determining the angle of the air deflector according to the first angle.

The setting direction in the above steps is the setting direction of the air outlet direction of the air conditioner, that is, the blowing direction of the air conditioner is the setting direction. The first angle is the angle between the default angle of the air deflector and the vertical direction when the air conditioner is in the off state, and the default state of the air deflector is the starting point. Therefore, the steps are as follows: determining the set air deflector angle according to the first angle can be implemented as follows: determining the angle of the set air deflector according to the first angle and the preset angle difference, comprising the following steps: and taking the sum of the first angle and the preset angle difference as the first angle, or taking the difference between the first angle and the preset angle difference as the first angle. By adopting the technical scheme, the air outlet direction of the air conditioner points to the top of the head of a person, the air outlet direction of the air conditioner cannot blow any part of the body of the person, and the direct blowing prevention effect is good.

As can be seen in the foregoing with respect to the first distance, the first distance measurement rule includes: the horizontal distance of the air conditioner from the set area, and the linear distance of the air conditioner from the set area. The point taking modes in the set area are different, and the first distance further comprises three types: the distance between the air conditioner and the edge of the set area closest to the air conditioner is the distance between the air conditioner and the air conditioner, the distance between the air conditioner and the edge of the set area farthest from the air conditioner is the distance between the air conditioner and the air conditioner, and the distance between the air conditioner and the set center of the set area and the air conditioner.

After the measuring rule of the first distance, three different first distances can be obtained according to three different point taking modes of a set area, three different set air deflector angles can be obtained according to the three different first distances, further, three different deviation distances can be obtained, the deviation distance is the vertical distance between the air supply direction of the air conditioner and personnel, the height of the set personnel is improved, and the three different deviation distances are guaranteed to be larger than or equal to the set deviation distance. When the installation height of the air conditioner and the set personnel height are unchanged, and when the first distance is the distance between the edge of the set area closest to the air conditioner and the air conditioner, the vertical distance between the air outlet direction of the air conditioner and the personnel is a first deviation distance in practice; when the first distance is the distance between the edge of the set area farthest from the air conditioner and the air conditioner, the vertical distance between the air outlet direction of the air conditioner and personnel and the distance between the air conditioners are the second deviation distance in practice; when the first distance is the distance between the set center of the set area and the air conditioner, the vertical distance between the air outlet direction of the air conditioner and the personnel is the third deviation distance in practice. Then, the first deviation distance is less than the third deviation distance, which is less than the second deviation distance. The larger the deviation distance is, the better the direct blowing prevention effect is, and meanwhile, the poorer the effect of adjusting the temperature in the set area is; the smaller the deflection distance, the worse the blow-through prevention effect, and at the same time, the better the temperature adjustment effect in the setting area.

With regard to the steps: the method comprises the steps that the existence state of people in a set area is obtained through an infrared pyroelectric sensor, in a common infrared pyroelectric sensor, after the model of the infrared pyroelectric sensor is determined, the detection range of the infrared pyroelectric sensor is determined, on the basis, if the installation position of the infrared pyroelectric sensor is determined again, the detectable area of the infrared pyroelectric sensor is determined, and the detectable area of the infrared pyroelectric sensor is the set area; among the conventional pyroelectric infrared sensors, there is a pyroelectric infrared sensor in which the detection range is adjusted by changing the input signal.

In order to change the detection range of the infrared pyroelectric sensor, a variable-focus infrared pyroelectric sensing device is proposed, as shown in fig. 2. The device comprises a driving mechanism 21, a lens 22 and the infrared pyroelectric sensor 10, wherein the driving mechanism is used for driving the lens so as to change the distance between the lens and a pyroelectric sensitive element of the infrared sensor. The power source of the driving mechanism can be any one of a servo motor, a stepping motor and a hydraulic cylinder, and the driving mechanism can be any one of a screw rod and a transmission belt.

In an alternative embodiment, the air conditioner includes a driving mechanism for driving the lens to change a distance between the lens and the pyroelectric sensing element of the infrared sensor, the lens, and the infrared sensor.

On the basis, the steps are as follows: the existence state of personnel in the set area is obtained through the infrared pyroelectric sensor, and the method can be implemented as follows:

controlling a driving mechanism according to a set strategy to adjust the distance between a lens and a pyroelectric sensitive element of the infrared sensor;

acquiring a fourth distance between the lens and the infrared sensor;

and determining the set area according to the fourth distance.

Optionally, the setting policy is: the distance between the lens and the pyroelectric sensitive element of the infrared sensor is within a set distance range, or the moving speed of the lens is adjusted to be a set speed.

Further, in an alternative embodiment, a control method of a blow-through prevention air conditioner includes:

when the existence of the person is determined through the output signal of the infrared sensor, acquiring a fourth distance between the lens and the infrared sensor;

determining a set area according to the fourth distance;

determining a set air deflector angle according to the first distance between the air conditioner and the set area and the installation height of the air conditioner, or the first distance between the air conditioner and the set area, the installation height of the air conditioner and the height of a set person, so that the distance between the air supply direction and the person is larger than or equal to a set deviation distance;

With regard to the steps: when the existence of a person is determined through an output signal of the infrared sensor, a fourth distance between the lens and the infrared sensor is obtained, when the driving mechanism adopts the servo motor to provide power, the rotating angle of the servo motor can be obtained through the feedback of a servo motor driver, and the moving distance of the lens under the driving of the servo motor can be calculated according to the rotating angle of the servo motor; in addition, when the lens is located at the initial position, the distance between the lens and the pyroelectric sensitive element of the infrared pyroelectric sensor is a known distance, and on the basis of the known distance, the fourth distance between the lens and the pyroelectric sensitive element of the infrared pyroelectric sensor can be obtained according to the rotation angle of the servo motor. Similarly, when the driving mechanism adopts the stepping motor to provide power, the rotating angle of the stepping motor can be obtained according to the number of pulses received by the stepping motor, and further the distance between the lens and the pyroelectric sensitive element of the infrared pyroelectric sensor is obtained.

In an alternative embodiment, the steps of: determining a set area according to the fourth distance, including:

determining a corresponding detection angle according to the fourth distance;

and determining a set area according to the detection angle, the installation height of the infrared pyroelectric sensor and the installation angle of the infrared pyroelectric sensor.

Along with the removal of lens, the infrared ray of different regions can focus on infrared pyroelectric sensor's pyroelectric sensing element, and the size of the region that infrared pyroelectric sensor can detect changes, mainly embodies: the smaller the fourth distance is, the larger the detection angle is, the scene can be focused on a pyroelectric sensitive element of the infrared pyroelectric sensor, and the larger the area which can be detected by the infrared pyroelectric sensor is; the smaller the fourth distance is, the smaller the angle of the scene can be focused on the pyroelectric sensitive element of the infrared pyroelectric sensor, and the smaller the area which can be detected by the infrared pyroelectric sensor is. After the installation position of the infrared pyroelectric sensor is determined, the distance between the infrared pyroelectric sensor and the ground is a known fixed value, the installation angle of the infrared pyroelectric sensor is a known angle, and then the set area can be determined by utilizing a trigonometric function according to the detection angle. Through the steps, the set area in the change can be obtained. It should be understood that acquiring the set area in the variation includes acquiring the boundary of the set area.

When the set area is a variable area, the first distance is a variable distance, and in an alternative embodiment, in the step: according to the air conditioner with the installation height of the first distance of setting for the region and air conditioner, or, the air conditioner with the first distance of setting for the region, the installation height of air conditioner, set for personnel's height and determine and set for the aviation baffle angle to before making the distance between air supply direction and the personnel more than or equal to set for the deviation distance, still include:

and determining a first distance between the air conditioner and the set area according to the set relative position relation between the infrared pyroelectric sensor and the air conditioner and the set area.

The variable first distance can be acquired in real time, so that the angle of the air deflector can be accurately set, and the effect of direct blowing prevention is achieved. The boundary of the set area is known, the relative position of the infrared pyroelectric sensor and the air conditioner comprises the distance between the infrared pyroelectric sensor and the air conditioner and the angle between a connecting line between the infrared pyroelectric sensor and the air conditioner and a reference line, and the reference line can be a straight line on any horizontal plane in the space to be subjected to temperature regulation.

When the set area is a known constant area, the technical effect of preventing the direct blowing can be achieved without changing the set deviation distance. When the set area is a changed area, for example, the area of the set area changes, and if the setting deviation distance does not change, there is a case where a person in the air-out direct-blowing set area of the air conditioner blows out air, for example, when the distance between the edge of the set area closest to the air conditioner and the air conditioner is the first distance, and the air conditioner blows air in the side direction of the set area farthest from the air conditioner, there is a risk that the air-blowing direction of the air conditioner is directed to the set area when the area of the set area increases, and if the air-blowing direction of the air conditioner is directed to the set area, the air conditioner is inevitably blown out in a part of the set area. A corresponding solution is proposed herein, in an alternative embodiment the fourth distance is inversely related to the set deflection distance. When the area of the set area is changed, the technical effect of preventing direct blowing can be ensured. The larger the fourth distance is, the larger the setting area is, and accordingly, in order to avoid the above-mentioned technical problem mentioned in this paragraph, it is necessary to increase the setting deviation distance.

In the infrared pyroelectric sensor, the pyroelectric sensitive element is similar to a plate capacitor taking a pyroelectric crystal as a dielectric medium, the dielectric coefficient of the dielectric medium is influenced by temperature, and when the temperature difference between two poles of the pyroelectric sensitive element changes, the charge density of the two poles of the pyroelectric sensitive element is changed, so that current is generated. Further, the temperature between the two electrodes of the pyroelectric sensing element changes because one electrode of the pyroelectric sensing element receives the changing infrared ray, and the energy difference between the changing infrared rays changes the temperature of the electrode. It can be seen that the infrared pyroelectric sensor is used for sensing the change of infrared rays in the set area, that is, the infrared pyroelectric sensor can detect people moving in the set area.

As shown in fig. 6, in an alternative embodiment, a control method of a blow-through preventing air conditioner includes:

s601, controlling a driving mechanism to enable the distance between a lens and a pyroelectric sensitive element of the infrared pyroelectric sensor to change within a first set distance range;

s602, acquiring the existence state of personnel in a set area;

s603, when the existing state of the personnel is that the personnel exists, determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and S604, controlling the air conditioner according to the set air deflector angle.

The above-described drive mechanism, lens, and infrared pyroelectric sensor are shown in fig. 2. The first set distance is related to the sensitivity of a pyroelectric sensitive element of the infrared pyroelectric sensor, the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor refers to the thermal inertia of the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor, and the larger the thermal inertia of the sensitivity of the pyroelectric sensitive element is, the lower the sensitivity of the pyroelectric sensitive element is; the smaller the thermal inertia of the sensitivity of the pyroelectric sensing element, the higher the thermal inertia of the sensitivity of the pyroelectric sensing element. The higher the sensitivity of a pyroelectric sensitive element of the infrared pyroelectric sensor is, the smaller the first set distance is; the lower the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor, the larger the first set distance. By adopting the steps, when the personnel in the set area are static, the technical effect of preventing the direct blowing can be realized. When the distance between the lens and the pyroelectric sensing element of the pyroelectric sensor changes, the area corresponding to a scene focused on the pyroelectric sensing element changes, namely, the infrared rays radiated by the same area shift at the focusing position of the pyroelectric sensing element through the lens along with the change of the distance between the lens and the pyroelectric sensing element of the pyroelectric sensor, so that the local temperature of the pyroelectric sensing element is changed, the output current of the pyroelectric sensing element changes, the output signal of the pyroelectric infrared sensor changes, and the static person in the set area can be detected.

Under the general condition, if personnel exist in a set area, controlling the air conditioner to operate according to a direct blowing prevention mode; if no personnel exist in the set area, the air conditioner is controlled to operate according to a default mode to achieve the effect of temperature adjustment, or if no personnel exist in the set area, the air conditioner is controlled to stop operating to achieve energy conservation.

In an alternative embodiment, the steps of: the control actuating mechanism to make the distance between the pyroelectric sensing element of lens and infrared pyroelectric sensor change in first settlement distance range, acquires the personnel existence condition in the settlement region, includes:

controlling the driving mechanism to continuously move in a second time;

acquiring the existence state of a first person in a set area through an infrared pyroelectric sensor;

in a third time, controlling the driving mechanism to be still all the time;

acquiring the existence state of a second person in the set area through an infrared pyroelectric sensor;

Through the steps, the real personnel existence state in the set area can be obtained. In some application scenarios, an infrared interference source exists in the setting area, for example, other household appliances such as a television and a refrigerator exist in the setting area, and during the use of the household appliances, the temperature rises, infrared rays similar to those radiated by people are radiated, and the identification process of the air conditioner is interfered.

In the above step, the first person existing state corresponds to a stationary human-like infrared radiation source in the setting area, and if the human-like infrared radiation source exists in the setting area, the first person existing state is that the person exists; the second person presence state corresponds to a person who moves in the set area, and if the person who moves exists in the set area, the person is present in the second person presence state.

In an alternative embodiment, the steps of: determining the existence state of the actual personnel according to the existence state of the first personnel and the existence state of the second personnel, comprising the following steps:

when the first person existing state is the person existing, if the second person existing state is the person existing in the first time period before the first time, the actual person existing state is the person existing.

The first time is the time when the first person existing state is determined to be the person existing state. Through the steps, when the human-like infrared radiation source exists in the set area, the intelligent judgment of the actual personnel existence state is realized, namely, the real personnel existence state is intelligently judged, so that the air conditioner is accurately controlled. When the second person presence state is the presence of a person, two cases are included: the person enters the set area, and the person leaves the set area. If the personnel are difficult to move all the time in the set area after entering the set area, the personnel can move with high probability in a first time period, and the air conditioner always operates in a direct blowing prevention mode before the personnel move; and if the personnel leave the set area, after a first time period, the air conditioner exits the direct blowing prevention mode and operates or stops operating according to the default mode. The first time period may be an average time during which the person is concentrating, and therefore, the person may move with a high probability within the first time period.

In an alternative embodiment, in step: before acquiring the existence state of the people in the set area, the method further comprises the following steps:

when the personnel presence state is the personnel presence, the method further comprises the following steps:

acquiring a fourth distance between the lens and the infrared sensor;

and determining the set area according to the fourth distance.

By adopting the steps, the existence state of the actual personnel can be determined in a larger range.

In order to identify stationary persons in the set area, the following embodiments can also be used:

in an alternative embodiment, a method for controlling a blow-through preventing air conditioner includes:

controlling a second driving mechanism to enable the Fresnel lens to rotate within a second set angle;

when the personnel existence state is that the personnel exists, determining a set air deflector angle according to the installation height of the air conditioner, a first distance between a set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance;

As shown in fig. 3, the air conditioner includes a second driving mechanism 31, a fresnel lens 32 and an infrared pyroelectric sensor 10, wherein a focus of the fresnel lens is located on a pyroelectric sensitive element of the infrared pyroelectric sensor, and the second driving mechanism is used for driving the fresnel lens to rotate. The fresnel lens is a mesh fresnel lens, as shown in fig. 4.

Optionally, the fresnel lens is rotated back and forth at a second set angle. The second set angle is related to the sensitivity of a pyroelectric sensitive element of the infrared pyroelectric sensor, the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor refers to the thermal inertia of the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor, and the larger the thermal inertia of the sensitivity of the pyroelectric sensitive element is, the lower the sensitivity of the pyroelectric sensitive element is; the smaller the thermal inertia of the sensitivity of the pyroelectric sensing element, the higher the thermal inertia of the sensitivity of the pyroelectric sensing element. The higher the sensitivity of a pyroelectric sensitive element of the infrared pyroelectric sensor is, the smaller the second set angle is; the lower the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor, the larger the second set angle. Optionally, the fresnel lens is rotated back and forth at a second set angle. Alternatively, when the second set angle is 360 °, the fresnel lens is configured to continue to rotate at the set angular velocity (distinguished from the above-described reciprocal rotation). Optionally, the angular velocity of the rotation of the fresnel lens is positively correlated with the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor, and the smaller the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor is, the smaller the set angular velocity is; the greater the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor is, the greater the set angular velocity is, so as to ensure that the pyroelectric sensitive element of the infrared pyroelectric sensor generates corresponding change to the changed infrared rays.

By adopting the steps, when the personnel in the set area are static, the technical effect of preventing the direct blowing can be realized. When the Fresnel lens rotates, because the Fresnel lens is a grid-shaped Fresnel lens, infrared rays radiated by the same area can be periodically focused on the pyroelectric sensitive element through the lens, so that the local temperature of the pyroelectric sensitive element is changed, the output current of the pyroelectric sensitive element is changed, the output signal of the infrared pyroelectric sensor is changed, and the static personnel in the set area can be detected.

In an alternative embodiment, the steps of: control second actuating mechanism to make fresnel lens at the rotation of second settlement angle, acquire the personnel that presume the region and exist the state through infrared pyroelectric sensor, include:

controlling the second driving mechanism to continuously move in a fourth time;

controlling the second driving mechanism to be still all the time in the fifth time;

acquiring a first person existing state of a set area through a first infrared pyroelectric sensor with static induction;

acquiring the existence state of a second person in a set area through a second infrared pyroelectric sensor with dynamic induction;

when the actual personnel existence state is determined to be personnel in the set area according to the first personnel existence state and the second personnel existence state, determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

A first pyroelectric infrared sensor of static sensing refers to a device that senses a stationary source of infrared radiation in a defined area, such as the device shown in fig. 2 or 3 on a device/air conditioner. The second infrared pyroelectric sensor with dynamic induction refers to an infrared pyroelectric sensor capable of sensing an infrared radiation source moving in a set area.

With regard to the steps: determining the actual presence status of the person from the presence status of the first person and the presence status of the second person, in an alternative embodiment, the step includes:

In an optional implementation manner, when it is determined that the actual person existing state is that no person exists in the set area according to the first person existing state and the second person existing state, the air conditioner is controlled to enter a default air supply mode, or the air conditioner is controlled to be turned off. The default air supply mode comprises an up-down air sweeping mode, a left-right air sweeping mode and the like, and the temperature in the set area can be adjusted better. When the air conditioner is controlled to be turned off, energy conservation can be realized.

In an alternative embodiment, the control method of the blow-through prevention air conditioner further includes:

determining the fan rotating speed of the indoor unit according to a first distance between a set area and the air conditioner;

and controlling the air conditioner according to the rotating speed of the fan.

When the space of the space to be temperature-regulated is large, the air sent by the air conditioner is not easily influenced by the inner wall of the space to be temperature-regulated; when the space of the space to be adjusted the temperature is less, the wind that the air conditioner sent out receives the influence of the inner wall of the space to be adjusted the temperature easily, leads to the wind that the air conditioner sent out to blow to personnel easily on one's body, though do not directly blow to the personnel of setting for the region, but the personnel of setting for the region still are blown because of the wind that the inner wall of the space to be adjusted the temperature blockked and form, have reduced and have prevented the direct-blow effect. By adopting the steps, the rotating speed of the indoor fan is adjusted according to the first distance, and the substantial technical effect of direct blowing prevention is guaranteed.

Optionally, the first distance is positively correlated with the fan speed. Optionally, the step of: the fan rotating speed of the indoor unit is determined according to the first distance between the set area and the air conditioner, and the method comprises the following steps: and determining a corresponding correction rotating speed according to the first distance, and acquiring the corrected rotating speed of the fan according to the correction rotating speed and the initial rotating speed of the fan. Regarding the corrected rotation speed, the corrected rotation speed corresponding to the first distance may be stored in a database, and the corrected rotation speed may be obtained by searching the database for the first distance. And performing addition/subtraction operation on the initial fan rotating speed and the corrected rotating speed to obtain the corrected fan rotating speed. Optionally, when the first distance is greater than the set distance, adding a correction rotating speed on the basis of the initial fan rotating speed to obtain the corrected fan rotating speed, or when the first distance is greater than the set distance, the correction rotating speed is a positive number, and the initial fan rotating speed and the correction rotating speed are added to obtain the corrected fan rotating speed; and when the first distance is smaller than the set distance, subtracting the corrected rotating speed on the basis of the initial rotating speed of the fan to obtain the corrected rotating speed of the fan, or when the first distance is smaller than the set distance, the corrected rotating speed is a negative number, and adding the initial rotating speed of the fan and the corrected rotating speed to obtain the corrected rotating speed of the fan. Through the steps, more accurate rotating speed of the fan can be obtained.

when the personnel existence state represents that personnel exist in the set area, the set area detected by the infrared pyroelectric sensor is adjusted;

when the change cycle of the existing state of the personnel is less than the set cycle, determining a set air deflector angle according to the installation height of the air conditioner, the sixth distance between the edge of the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is greater than or equal to the set deviation distance;

In addition, by adopting the steps, the accuracy of the sixth distance between the acquired edge of the set area and the air conditioner is improved.

The sixth distance is one of the embodiments of the first distance described above, and is obtained in the same manner as the embodiment of obtaining the corresponding first distance. The setting region for adjusting the detection of the pyroelectric infrared sensor includes the following embodiments: and adjusting the distance between the lens and the pyroelectric sensitive element, and adjusting the detection direction of the infrared pyroelectric sensor (for example, the infrared pyroelectric sensor is a rotatable infrared pyroelectric sensor).

In an alternative embodiment, the steps of: the setting area of adjustment infrared pyroelectric sensor detection includes:

controlling a driving mechanism of the steerable infrared pyroelectric sensor to move a set area detected by the infrared pyroelectric sensor; or the like, or, alternatively,

and controlling a driving mechanism for driving the lens so as to adjust the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor.

adjusting a set area detected by the infrared pyroelectric sensor according to the first trend;

when the state of the person changes, the set area detected by the infrared pyroelectric sensor is adjusted according to a second trend opposite to the first trend.

So as to ensure that the personnel are located at the edge of the set area and improve the accuracy of the acquired sixth distance. The first trend and the second trend are trends of changing the setting region, and include: a trend of moving a direction of the set area when the set area is moved; and a tendency to increase or decrease the area of the setting region when the area of the setting region is adjusted.

In an alternative embodiment, the steps of: and after the set area detected by the infrared pyroelectric sensor is adjusted according to the first trend, if the existing state of the person does not change after the sixth time, the set area detected by the infrared pyroelectric sensor is adjusted according to the second trend.

In an alternative embodiment, when the first trend and the second trend are switched, the speed of adjusting the set area detected by the pyroelectric infrared sensor is reduced, so that a person can be located at the boundary of the set area quickly, namely, the existence state of the person is changed periodically quickly.

The above-mentioned personnel presence state changes periodically, including: the variation period of the human presence state is less than or equal to the set period.

In an alternative embodiment, the air conditioner comprises a steerable infrared pyroelectric sensor and a steerable distance measuring device, and the control method comprises the following steps:

controlling the steerable infrared pyroelectric sensor to search all areas in the area to be temperature-regulated according to a set search strategy;

acquiring a first area where a person is located through a steerable pyroelectric infrared sensor;

acquiring a third distance between a moving person in the first area and the air conditioner through the steerable ranging device;

determining a set air deflector angle according to the installation height and the third distance of the air conditioner, or the installation height and the third distance of the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

The above-mentioned steerable infrared pyroelectric sensor 51 and steerable distance measuring device 52 are shown in fig. 5. Through the steps, specific positions of personnel can be obtained, and then more accurate setting air deflector angles are determined, the distance position between the air supply direction and the personnel is in a relatively fixed deviation distance, on the basis of guaranteeing the direct blowing prevention effect, the temperature adjusting capacity can also be improved, and a user has better use experience.

In an alternative embodiment, the step of determining the set air deflector angle by the installation height of the air conditioner, the third distance and the set personnel height comprises the following steps: and determining a first angle between the set direction and the vertical direction according to the third distance and the first height difference between the installation height and the set personnel height, and determining the angle of the set air deflector according to the first angle.

As can be seen from fig. 5, the steerable pyroelectric infrared sensor is a horizontal steerable pyroelectric infrared sensor, that is, the rotating surface of the steerable pyroelectric infrared sensor is a horizontal surface.

In an alternative embodiment, the steps of: after acquiring a first area where a person is located through the steerable infrared pyroelectric sensor, the method comprises the following steps:

adjusting the detection area of the steerable infrared pyroelectric sensor;

and when the change cycle of the personnel existence state is smaller than the set cycle, acquiring a third distance between the moving personnel in the first area and the air conditioner through the steerable distance measuring device.

The position of personnel is preliminarily obtained through the steerable infrared pyroelectric sensor, so that the personnel can be quickly found by the steerable distance measuring device.

In an alternative embodiment, the steps of: adjusting a detection area of a steerable infrared pyroelectric sensor, comprising:

adjusting the detection area of the steerable infrared pyroelectric sensor according to the first trend;

when the state of the person is changed, the detection area of the steerable infrared pyroelectric sensor is adjusted according to a second trend opposite to the first trend.

The position of a person is preliminarily obtained through the steerable infrared pyroelectric sensor, and the position of the person is the edge of the detection area of the steerable infrared pyroelectric sensor.

In an alternative embodiment, the steps of: obtaining a third distance from the moving person of the first area to the air conditioner via a steerable ranging device, comprising:

acquiring a first rotation angle of the steerable infrared pyroelectric sensor;

determining a second rotation angle of the steerable distance measuring device according to the first rotation angle;

and controlling the steerable distance measuring device to rotate according to the second rotation angle.

By adopting the steps, the steerable distance measuring device can quickly find people and measure the distance. The detection angle of the steerable pyroelectric infrared sensor is a known angle, and the second rotation angle can be determined according to the first rotation angle and the detection angle of the steerable pyroelectric infrared sensor. Optionally, the first rotation angle is added with a detection angle of the steerable pyroelectric infrared sensor to obtain a second rotation angle; optionally, the detection angle of the steerable pyroelectric infrared sensor is subtracted from the first rotation angle to obtain a second rotation angle.

acquiring the existence states of people in two or more set areas through two or more infrared pyroelectric sensors;

when the personnel existence states of two or more set areas sequentially represent the existence of personnel, determining the personnel motion state according to the personnel existence states of the two or more set areas;

determining a set deviation distance according to the movement state of the personnel;

determining a set air deflector angle according to the installation height of the air conditioner and a first distance between a set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and a set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance;

The movement state of the personnel refers to the speed of the personnel moving, and under the general condition, when the personnel moving speed is high, the personnel can bear wind with higher speed; when the moving speed of the person is slow, the person can bear wind with a smaller speed, the 'person moving speed is fast' and the 'person moving speed is slow', and the 'wind with a larger speed' and the 'wind with a smaller speed' are opposite. If the moving speed of the person is slow and the set deviation distance is small, the person will feel wind with a large intensity. In the steps, the corresponding set deviation distance can be obtained according to the moving speed of the personnel, so that the personnel can feel wind in a bearable range, and when the personnel are in a moving state, a better direct blowing prevention effect can be still realized.

With regard to the steps: the personnel existence state of two or more set areas is obtained through two or more infrared pyroelectric sensors, in an optional implementation mode, each set area corresponds to two infrared pyroelectric sensors, one is a static induction infrared pyroelectric sensor, and the other is a dynamic induction infrared pyroelectric sensor.

With regard to: the personnel existence states of two or more set areas sequentially represent the existence of personnel, each infrared pyroelectric sensor corresponds to one set area, and the set areas corresponding to different infrared pyroelectric sensors are adjacent or crossed. Each sensor can acquire the presence state of people in the corresponding setting area, for example, the third infrared pyroelectric sensor is used for acquiring the presence state of a third person in the third setting area, the fourth infrared pyroelectric sensor is used for acquiring the presence state of a fourth person in the fourth setting area, when the presence state of the third person is changed from the presence of people to the absence of people, correspondingly, the presence state of the fourth person is changed from the absence of people to the presence of people, and the change states are the presence state of the third person in the third setting area and the presence state of the fourth person in the fourth setting area, which sequentially represent the presence of people.

With regard to the steps: and determining the movement state of the person according to the presence states of the person in the two or more set areas, wherein the presence states of the person in the two or more set areas sequentially represent the presence of the person, and the switching time of the presence states of the person in the two or more set areas corresponds to the movement state of the person. The switching time of the presence states of the persons in two or more setting areas refers to the time required for switching the presence state of the person in one setting area to the presence state of the person in another setting area. Still taking the third setting area and the fourth setting area as an example, before the third presence state of the third setting area and the fourth presence state of the fourth setting area are switched, the states are as follows: the third person existing state is that a person exists, the fourth person existing state is that a person does not exist, and the switching states are as follows: the third person presence status is that a person is absent and the fourth person presence status is that a person is present. The state before switching is changed into the state after switching, and the required time is the switching time. When both the area and the position of the setting region detected by the pyroelectric infrared sensor are changed, the shorter the switching time is, the faster the person moves, and the longer the switching time is, the slower the person moves.

Alternatively, the switching time between the human presence states of two or more set areas is positively correlated with the set deviation distance. The method is convenient for determining the proper set deviation distance, so that the personnel can experience better wind sensation.

In an alternative embodiment, the steps of: confirm according to personnel's motion state and set for the deviation distance, include:

acquiring a third distance between the person and the air conditioner through the distance measuring device;

and determining the set deviation distance according to the third distance and the personnel motion state.

The accurate set deviation distance can be obtained through the steps, the larger the third distance is, the larger the set deviation distance is, and the effect of preventing direct blowing is improved.

when the personnel existence state represents the existence of personnel in the set area, acquiring personnel identity information;

determining a set deviation distance according to the personnel identity information;

and controlling the air conditioner according to the angle of the air deflector.

Different people have different sensitivities to wind and can bear different wind intensities. In the above steps, the person identification information corresponds to the intensity of the wind that the person can bear, and the intensity of the wind that the person can bear corresponds to the set deviation distance, so that the person identification information corresponds to the set deviation distance, and the correspondence relationship may be stored in a corresponding database in advance, and further, the corresponding set deviation distance may be determined according to the person identification information.

Through the steps, on the one hand, the air conditioner is guaranteed to have the effect of preventing direct blowing, and on the basis of preventing direct blowing, people can experience better wind feeling.

In an alternative embodiment, the steps of: acquiring personnel identity information, comprising:

acquiring face information of a person through a depth sensor;

and determining the identity information of the person according to the face information.

The depth sensor is a sensor capable of acquiring three-dimensional information, and is a sensor for distinguishing and acquiring planar image information. The depth sensor may be a time-of-flight sensor, and may be a sensor including an array of vertical cavity surface emitting lasers.

In an alternative embodiment, the steps of: confirm according to personnel's identity information and set for the deviation distance, include:

determining an initial deviation distance according to the identity information of the personnel;

acquiring the rotating speed of a fan of an indoor unit of an air conditioner;

and correcting the initial deviation distance according to the fan to obtain the set deviation distance.

Optionally, the set deviation distance is positively correlated with the fan speed. When the initial deviation distance is corrected, the rotating speed of the fan corresponds to the correction distance, and the initial deviation distance and the correction distance are subjected to addition/subtraction operation, so that the set deviation distance can be obtained. Optionally, when the rotation speed of the fan is greater than the first set rotation speed, adding a correction distance on the basis of the initial deviation distance to obtain the set deviation distance, or, when the rotation speed of the fan is greater than the first set rotation speed, the correction distance is a positive number, and the initial deviation distance and the correction distance are added to obtain the set deviation distance; when the rotating speed of the fan is lower than the first set rotating speed, the correction distance is subtracted on the basis of the initial deviation distance to obtain the set deviation distance, or when the rotating speed of the fan is lower than the first set rotating speed, the correction distance is a negative number, and the initial deviation distance and the correction distance are added to obtain the set deviation distance. Optionally, the difference between the fan rotation speed and the first set rotation speed is positively correlated with the absolute value of the correction distance. Through the steps, the more accurate set deviation distance can be obtained.

when the personnel existence state represents that personnel exist in the set area, acquiring the personnel number information in the set area;

determining a set deviation distance according to the personnel number information;

With respect to the following scenarios: a plurality of personnel use the air conditioner simultaneously, set for the regional interior and have a plurality of personnel promptly, compare with setting for having a personnel in the region, shelter from each other between a plurality of personnel, have reduced the air conditioner to setting for regional air supply effect, have reduced the air conditioner simultaneously to setting for regional effect of adjusting the temperature. In the above steps, when the air conditioner is controlled to prevent direct blowing, the influence of the number of the personnel on the air supply effect of the set area is considered, on the basis of realizing the direct blowing prevention effect, the influence of the number of the personnel on the air supply effect of the set area is reduced, and the personnel in the set area can experience better wind feeling.

With regard to the steps: determining the set deviation distance according to the number of people information, in an alternative embodiment, the step includes:

determining the number grade of the number of the personnel;

and determining the corresponding set deviation distance according to the quantity grade.

That is, the number level is a preset number level, each number level corresponds to a number range, and when the number of people is known, the number range in which the number of people is located can be determined, so that the number level corresponding to the number range is obtained. Each quantity grade corresponds to a set deviation distance, and the corresponding relation can be stored in a corresponding database, namely the corresponding set deviation distance can be determined according to the quantity grade.

Optionally, the larger the number of persons characterized by the number level, the larger the number range corresponding to the number level. For example, the number levels include a first number level corresponding to a first number range of [1,2], a second number level corresponding to a second number range of [3,6], and a third number level corresponding to a third number range of [7, 14 ].

In an alternative embodiment, the steps of: confirm according to personnel's quantity information and set for the deviation distance, include:

determining an initial deviation distance according to the personnel number information;

acquiring the rotating speed of a fan of an indoor unit of an air conditioner;

Optionally, the set deviation distance is positively correlated with the fan speed. When the initial deviation distance is corrected, the rotating speed of the fan corresponds to the correction distance, and the initial deviation distance and the correction distance are subjected to addition/subtraction operation, so that the set deviation distance can be obtained. Optionally, when the rotation speed of the fan is greater than the first set rotation speed, adding a correction distance on the basis of the initial deviation distance to obtain the set deviation distance, or when the rotation speed of the fan is greater than the first set rotation speed, the correction distance is a positive number, and the initial deviation distance and the correction distance are added to obtain the set deviation distance; when the rotating speed of the fan is lower than the first set rotating speed, the correction distance is subtracted on the basis of the initial deviation distance to obtain the set deviation distance, or when the rotating speed of the fan is lower than the first set rotating speed, the correction distance is a negative number, and the initial deviation distance and the correction distance are added to obtain the set deviation distance. Optionally, the difference between the fan rotation speed and the first set rotation speed is positively correlated with the absolute value of the correction distance. Through the steps, the more accurate set deviation distance can be obtained.

when the personnel existence state indicates that personnel exist in the set area, the set deviation distance is determined according to the second moment, or the set fan rotating speed and the set deviation distance of the indoor fan;

determining a set air deflector angle according to the installation height of the air conditioner, a first distance between a set area and the air conditioner and the height of a set person, so that the distance between the air supply direction and the person is larger than or equal to a set deviation distance;

and controlling the air conditioner according to the set air deflector angle, or the set air deflector angle and the set fan rotating speed.

The second moment in the above steps is a moment when the infrared pyroelectric sensor acquires the existence state of the person in the set area. That is, when the presence state of the person in the set area is acquired by the infrared pyroelectric sensor, the second time at that time is recorded. At different times, the requirements of the personnel on the anti-blow-through effect are different, for example, the anti-blow-through effect needs to be enhanced during sleeping, and the personnel can not feel wind; at work study time, the personnel can bear slight wind blowing, need not prevent the blow-through effect that the required when sleeping this moment, can be appropriate make personnel experience wind to regulating personnel is to the impression of temperature, through above-mentioned step, incorporates the influence of time factor to the demand of preventing the blow-through effect, has improved the intelligent effect of preventing the blow-through air conditioner, can agree with more and be applied to different time. Further, the steps of: confirm according to the second moment and set for the deviation distance, or, indoor fan set for the fan rotational speed with set for the deviation distance, include:

and determining a corresponding set time period according to the second moment, and determining a corresponding set deviation distance according to the corresponding set time period, or determining a set fan rotating speed and a set deviation distance of the indoor fan. The set time period and the set deviation distance have a mapping relation, or the set time period, the set fan rotating speed and the set deviation distance have a mapping relation, and the mapping relation between the set time period and the set fan rotating speed can be stored in a corresponding database.

The method comprises the following steps: the set deviation distance is determined according to the second moment, or the set fan rotating speed and the set deviation distance of the indoor fan, the requirements of personnel on the direct blowing prevention effect at different moments are considered, and in an optional implementation mode, the step is implemented as follows: and determining the set deviation distance or the set fan rotating speed and the set deviation distance of the indoor fan according to the second moment and the scene of the space to be temperature-regulated. The scene of the space to be temperature-regulated is a place with characteristics for applying an air conditioner, for example, the scene of the space to be temperature-regulated includes: corridors, meeting rooms, fitness rooms, offices, living rooms, kitchens, bedrooms and other places needing temperature regulation. Each scene includes a set bias distance corresponding to a plurality of time instants, and the correspondence may be stored in a database. The requirements of personnel on the anti-blow-through effect under different scenes are met, and the anti-blow-through air conditioner can be applied more pertinently.

With regard to the steps: the presence status of the person in the set area is obtained by the infrared pyroelectric sensor, and in an alternative embodiment, the step can be implemented as:

acquiring the existing state of a first person in a set area through a static induction infrared pyroelectric sensor;

acquiring the existence state of a second person in a set area through a dynamically-induced infrared pyroelectric sensor;

Optionally, the static-sensing pyroelectric infrared sensor and the dynamic-sensing pyroelectric infrared sensor are the same pyroelectric infrared sensor, or the static-sensing pyroelectric infrared sensor and the dynamic-sensing pyroelectric infrared sensor are two independent pyroelectric infrared sensors.

With regard to the steps: and determining the set deviation distance or the set fan rotating speed and the set deviation distance of the indoor fan according to the second moment, optionally, when acquiring the personnel identity information of the set area, the step can be implemented as follows: determining a set deviation distance according to the second moment and the personnel identity information, or determining a set fan rotating speed and a set deviation distance of the indoor fan; alternatively, when acquiring the information on the number of persons in the set area, the step may be implemented as: determining a set deviation distance according to the second moment and the personnel number information, or determining a set fan rotating speed and a set deviation distance of the indoor fan; when acquiring the motion state of the person in the set area, the step can be implemented as follows: and determining the set deviation distance according to the second moment and the personnel identity information, or determining the set fan rotating speed and the set deviation distance of the indoor fan. In the above embodiments of this step, each of them may store data with corresponding information in a database.

In an alternative embodiment, the steps of: the personnel that acquire in the settlement region through infrared pyroelectric sensor exist the state, include:

correspondingly, the step of determining the set deviation distance comprises the following steps:

and determining the set deviation distance according to the movement state of the person and the second moment.

The motion state of a person at a specific moment represents a person-specific living state with a high probability, and the living state comprises a leaving state, a returning state, a resting state, an entertainment state, a sleeping state and the like. Through the steps, the life state of the personnel can be obtained, the set deviation distance is determined according to the life state, and the personnel can experience different direct blowing prevention effects.

With regard to the steps: determining the set deviation distance according to the movement state of the person and the second moment, wherein in an alternative embodiment, the step includes:

acquiring the relative position of a set area in a space to be temperature-regulated;

determining a personnel moving track according to the relative position and the personnel motion state;

determining a preset control mode according to the movement track of the person and the second moment;

and determining the set deviation distance in the preset control mode.

In the space to be temperature-regulated, after the infrared pyroelectric sensor is installed, the infrared pyroelectric sensor can only detect a partial area in the space to be temperature-regulated corresponding to the expected installation position, namely, after the infrared pyroelectric sensor is installed, the position of the set area in the space is a known position. Optionally, the relative position is a characteristic position in the space to be temperature-regulated and controlled, for example, the space to be temperature-regulated is a space a, and the characteristic position includes: a connection location of the a space with an outdoor environment, a connection location of the a space with the B space (other than the a space), a television location in the a space, a sofa location in the a space, and the like. The moving track of the person in/out of the space A at the second moment can reflect the living state of the person, such as watching television. In order to enable the personnel to obtain better use experience, the living states of the personnel correspond to a preset control mode, the preset control mode comprises a set temperature, a set wind speed, a direct blowing prevention effect grade and the like of the living states, and under the preset control mode, the air conditioner creates a better air environment for the current living states of the users. In a preset control mode, different set deviation distances are used for representing the direct blowing prevention effect grade.

acquiring brightness information of a set area;

determining the actual personnel existence state according to the personnel existence state and the brightness information;

when the actual personnel existence state is that personnel exist, determining a set air deflector angle according to the installation height of the air conditioner, a first distance between a set area and the air conditioner and the height of the set personnel so that the distance between the air supply direction and the personnel is larger than or equal to a set deflection distance;

Regarding the step of determining the actual presence status of the person based on the presence status of the person and the brightness information, in an alternative embodiment, the step includes: and when the personnel existence state is the existence of personnel, if the brightness information is greater than the set brightness, the actual personnel existence state is the existence of personnel. The existence state of the actual personnel can be accurately determined.

In an optional embodiment, when the brightness information is natural brightness, before determining the set air deflector angle, the method further includes: and determining the set deviation distance according to the brightness information. When the brightness information is natural brightness, the brightness information can reflect the current second moment to a certain extent.

In the following steps: when the existence state of the personnel in the set area is obtained through the infrared pyroelectric sensor, recording a second moment; correspondingly, when the actual personnel existence state is the existence personnel, before determining the angle of the air deflector, the method further comprises the following steps: and determining the set deviation distance according to the second moment.

In an alternative embodiment, a method for controlling a direct-blow preventing air conditioner including a steerable ranging device 51 as shown in fig. 5 includes:

acquiring area information of a temperature adjusting space through a steerable distance measuring device;

when the personnel existence state represents that personnel exist in the set area, correcting the fan rotating speed of the indoor unit according to the area information;

determining a set air deflector angle according to the installation height of the air conditioner and a first distance between a set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and a set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the corrected set deflection distance;

and controlling the air conditioner according to the set air deflector angle and the corrected fan rotating speed.

When the space of the space to be temperature-regulated is large, the air sent by the air conditioner is not easily influenced by the inner wall of the space to be temperature-regulated; when the space of the space to be adjusted the temperature is less, the wind that the air conditioner sent out receives the influence of the inner wall of the space to be adjusted the temperature easily, leads to the wind that the air conditioner sent out to blow to personnel easily on one's body, though do not directly blow to the personnel of setting for the region, but the personnel of setting for the region still are blown because of the wind that the inner wall of the space to be adjusted the temperature blockked and form, have reduced and have prevented the direct-blow effect. By adopting the steps, the rotating speed of the indoor fan is adjusted according to the area of the space to be adjusted in temperature, and the substantial technical effect of direct blowing prevention is ensured.

With regard to the steps: obtaining information on the area of the conditioned space by means of a steerable distance measuring device, which in an alternative embodiment comprises:

controlling the steerable distance measuring device to rotate according to a first set strategy;

when the set conditions are met, acquiring three or more characteristic distances and recording three or more characteristic angles;

area information is acquired based on the three or more feature distances and the three or more feature angles.

With regard to the steps: and controlling the steerable distance measuring device to rotate according to a first set strategy, wherein the first set strategy comprises the rotating speed of the steerable distance measuring device, the maximum rotating angle of the steerable distance measuring device and the initial position of the steerable distance measuring device. For example, the steerable ranging device is controlled to rotate from the leftmost end to the rightmost end, or the steerable ranging device is controlled to rotate from the rightmost end to the leftmost end. Under a first set strategy, the steerable ranging device is rotated one or more times within its rotatable angle.

With regard to the steps: when a set condition is met, acquiring three or more characteristic distances and recording three or more characteristic angles, wherein the set condition is as follows: in the variation of the distance acquired by the steerable distance measuring device, a local extreme value occurs, which comprises a local maximum and a local minimum. The characteristic angle is a rotation angle of the steerable ranging device (with an initial position of the steerable ranging device as a starting point) when a set condition is satisfied, or a current angle of the steerable ranging device (with a wall surface where an air conditioner is located and the like as a starting point). When the local minimum value occurs, recording a first characteristic distance and a first characteristic angle; when a local maximum occurs, a second/third feature distance and a second/third feature angle are recorded.

With regard to the steps: and correcting the rotating speed of the fan according to the area information, wherein in an alternative embodiment, the step comprises the following steps:

determining a corresponding correction rotating speed according to the area information;

and acquiring the corrected rotating speed of the fan according to the corrected rotating speed and the initial rotating speed of the fan.

In the above step, optionally, the area represented by the area information is positively correlated with the fan rotation speed. In addition, the corrected rotation speed may be stored in a database in association with the area information, and may be acquired by searching the area information in the database. And performing addition/subtraction operation on the initial fan rotating speed and the corrected rotating speed to obtain the corrected fan rotating speed. Optionally, when the area information is larger than the set area, adding a correction rotating speed on the basis of the initial fan rotating speed to obtain the corrected fan rotating speed, or when the area information is larger than the set area, the correction rotating speed is a positive number, and the initial fan rotating speed and the correction rotating speed are added to obtain the corrected fan rotating speed; and when the area information is smaller than the set area, subtracting the corrected rotating speed on the basis of the initial rotating speed of the fan to obtain the corrected rotating speed of the fan, or when the area information is smaller than the set area, the corrected rotating speed is a negative number, and adding the initial rotating speed of the fan and the corrected rotating speed to obtain the corrected rotating speed of the fan. Through the steps, more accurate rotating speed of the fan can be obtained.

In an alternative embodiment, the control method of the anti-blow-through air conditioner comprises a universal distance measuring device, and comprises the following steps:

acquiring volume information of a temperature adjusting space through a universal distance measuring device;

when the personnel existence state represents that personnel exist in the set area, correcting the fan rotating speed of the indoor unit according to the volume information;

When the space of the space to be temperature-regulated is large, the air sent by the air conditioner is not easily influenced by the inner wall of the space to be temperature-regulated; when the space of the space to be adjusted the temperature is less, the wind that the air conditioner sent out receives the influence of the inner wall of the space to be adjusted the temperature easily, leads to the wind that the air conditioner sent out to blow to personnel easily on one's body, though do not directly blow to the personnel of setting for the region, but the personnel of setting for the region still are blown because of the wind that the inner wall of the space to be adjusted the temperature blockked and form, have reduced and have prevented the direct-blow effect. By adopting the steps, the rotating speed of the indoor fan is adjusted according to the volume of the space to be adjusted in temperature, and the substantial technical effect of direct blowing prevention is ensured.

With regard to the steps: the volume information of the temperature-adjusting space is obtained through the universal distance measuring device, and in an alternative embodiment, the method comprises the following steps:

controlling the universal distance measuring device to rotate in the horizontal plane direction according to a first set strategy so as to obtain area information of a space to be temperature-regulated;

controlling the universal distance measuring device to rotate in the vertical plane direction according to a second set strategy so as to obtain height information of the space to be temperature-regulated;

and acquiring volume information according to the area information and the height information.

With regard to the steps: according to a first set strategy, controlling the universal distance measuring device to rotate in the horizontal plane direction so as to obtain the area information of the space to be temperature-regulated, in an optional implementation mode, the step includes:

controlling the universal distance measuring device to rotate according to a first set strategy;

With regard to the steps: controlling the universal distance measuring device to rotate in the vertical plane direction according to a second set strategy to obtain height information of a space to be temperature-regulated, wherein the second set strategy is different from the first set strategy in that the first set strategy is different from the second set strategy in that the first set strategy is; and controlling the universal distance measuring device to rotate in the vertical plane according to a second set strategy. In an alternative embodiment, the step of controlling the universal distance measuring device to rotate in the vertical plane direction according to the second setting strategy to acquire the height information of the space to be temperature-regulated includes: the universal distance measuring device is controlled to rotate according to a first set strategy, when a set condition is met, three or more characteristic distances are obtained, three or more characteristic angles are recorded, and height information of a space to be subjected to temperature adjustment is obtained according to the three or more characteristic distances and the three or more characteristic angles.

With regard to the steps: in an alternative embodiment, the step of correcting the fan speed of the indoor unit according to the volume information includes:

determining a corresponding correction rotating speed according to the volume information;

In the above step, optionally, the volume represented by the volume information is positively correlated with the fan rotation speed. In addition, the corrected rotational speed may be stored in a database in association with the volume information, and may be acquired by searching the volume information in the database. And performing addition/subtraction operation on the initial fan rotating speed and the corrected rotating speed to obtain the corrected fan rotating speed. Optionally, when the volume information is greater than the set volume, adding a correction rotating speed on the basis of the initial fan rotating speed to obtain the corrected fan rotating speed, or when the volume information is greater than the set volume, the correction rotating speed is a positive number, and the initial fan rotating speed and the correction rotating speed are added to obtain the corrected fan rotating speed; and when the volume information is smaller than the set volume, subtracting the corrected rotating speed on the basis of the initial rotating speed of the fan to obtain the corrected rotating speed of the fan, or when the volume information is smaller than the set volume, adding the initial rotating speed of the fan and the corrected rotating speed to obtain the corrected rotating speed of the fan. Through the steps, more accurate rotating speed of the fan can be obtained.

Alternatively, the foregoing control method of the anti-blow-through air conditioner may be implemented in a network side server, or implemented in a mobile terminal, or implemented in a dedicated control device.

In an alternative embodiment, a control apparatus for a blow-through preventing air conditioner includes:

the first acquisition module is used for acquiring the existence state of personnel in a set area through the infrared pyroelectric sensor;

the first determining module is used for determining a set air deflector angle according to the installation height of the air conditioner and a first distance between the set area and the air conditioner or the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height when the personnel existence state represents that personnel exist in the set area, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and the first control module is used for controlling the air conditioner according to the set angle of the air deflector.

In an optional implementation manner, the first determining module is specifically configured to:

according to the first distance, the first height difference between the installation height and the set personnel height, a first angle between the set direction and the vertical direction is determined, and the set air deflector angle is determined according to the first angle.

In an alternative embodiment, the first distance comprises:

setting the distance between the edge of the area closest to the air conditioner and the air conditioner; or the like, or, alternatively,

setting the distance between the edge of the area farthest from the air conditioner and the air conditioner; or the like, or, alternatively,

the distance between the set center of the set area and the air conditioner is set.

In an alternative embodiment, the first distance comprises:

the distance between the projection of the air conditioner on the horizontal plane and the set area, or the straight-line distance between the air conditioner and the set area.

In an alternative embodiment, the air conditioner includes a driving mechanism for driving the lens to change a distance between the lens and a pyroelectric sensing element of the infrared sensor, a lens, and an infrared sensor, and the control device includes:

the second adjusting module is used for controlling the driving mechanism according to a second set strategy so as to adjust the distance between the lens and the pyroelectric sensitive element of the infrared sensor;

the fifth acquisition module is used for acquiring a fourth distance between the lens and the pyroelectric sensitive element of the infrared sensor when the existence of people is determined through the output signal of the infrared sensor;

the third determining module is used for determining a set area according to the fourth distance;

the fourth determining module is used for determining a set air deflector angle according to the first distance between the air conditioner and the set area and the installation height of the air conditioner, or the first distance between the air conditioner and the set area, the installation height of the air conditioner and the height of set personnel, so that the distance between the air supply direction and the personnel is larger than or equal to the set deflection distance;

and the fourth control module is used for controlling the air conditioner according to the set angle of the air deflector.

In an optional implementation manner, the third determining module is specifically configured to: and determining a corresponding detection angle according to the fourth distance, and determining a set area according to the detection angle, the installation height of the infrared pyroelectric sensor and the installation angle of the infrared pyroelectric sensor.

In an optional embodiment, the method further comprises:

and the fifth determining module is used for determining a first distance between the air conditioner and the set area according to the relative position relation between the set infrared pyroelectric sensor and the air conditioner and the set area before the set air deflector angle is determined.

In an alternative embodiment, the fourth distance is inversely related to the set deflection distance.

In an alternative embodiment, as shown in fig. 7, a control device for a blow-through preventing air conditioner, the air conditioner including a driving mechanism, a lens and an infrared pyroelectric sensor, the driving mechanism being configured to drive the lens to change a distance between the lens and a pyroelectric sensing element of the infrared pyroelectric sensor, the control device includes:

the fourth control module 71 is configured to control the driving mechanism so that a distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor changes within a first set distance range;

a sixth obtaining module 72, configured to obtain the presence status of the person in the set area;

a fifth determining module 73, configured to determine a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner, and the set personnel height when the personnel existence state is that a personnel exists, so that the distance between the air supply direction and the personnel is greater than or equal to the set deviation distance;

and a fifth control module 74 for controlling the air conditioner according to the set air deflector angle.

controlling the driving mechanism to continuously move in a second time;

in a third time, controlling the driving mechanism to be still all the time;

In an alternative embodiment, determining the actual presence status of the person from the presence status of the first person and the presence status of the second person includes:

In an optional embodiment, the method further comprises:

the third adjusting module is used for controlling the driving mechanism according to a set strategy to adjust the distance between the lens and the pyroelectric sensitive element of the infrared sensor before acquiring the existence state of people in the set area;

the seventh acquisition module is used for acquiring a fourth distance between the lens and the infrared sensor when the personnel existence state is the existence of a person;

In an alternative embodiment, the air conditioner includes a second driving mechanism, a fresnel lens and an infrared pyroelectric sensor, the fresnel lens is a grid-shaped fresnel lens, a focus of the grid-shaped fresnel lens is located on a pyroelectric sensitive element of the infrared pyroelectric sensor, the second driving mechanism is used for driving the fresnel lens to rotate, and the control device includes:

the sixth control module is used for controlling the second driving mechanism so as to enable the Fresnel lens to rotate within a second set angle;

the eighth acquisition module is used for acquiring the existence state of the personnel in the set area through the infrared pyroelectric sensor;

the seventh determining module is used for determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height when the personnel existence state is that the personnel exist, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and the seventh control module is used for controlling the air conditioner according to the set angle of the air deflector.

In an optional implementation manner, the sixth control module and the eighth obtaining module are specifically configured to:

controlling the second driving mechanism to continuously move in a fourth time;

In an alternative embodiment, the angular velocity of the fresnel lens rotation is directly related to the sensitivity of the pyroelectric sensitive element of the infrared pyroelectric sensor.

the ninth acquisition module is used for acquiring the existence state of the first person in the set area through the first infrared pyroelectric sensor with static induction;

the first zero acquisition module is used for acquiring the existence state of a second person in a set area through a second infrared pyroelectric sensor with dynamic induction;

the eighth determining module is used for determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance when the actual personnel existence state is determined to be personnel in the set area according to the first personnel existence state and the second personnel existence state;

and the eighth control module is used for controlling the air conditioner according to the set angle of the air deflector.

In an optional embodiment, the method further comprises:

and the ninth determining module is used for determining that the actual person existing state is the person existing if the second person existing state is the person existing in the first time period before the first time when the first person existing state is the person existing.

In an alternative embodiment, the eighth control module is further configured to: and when the actual personnel existence state is determined to be the personnel nonexistence in the set area according to the first personnel existence state and the second personnel existence state, controlling the air conditioner to enter a default air supply mode, or controlling the air conditioner to be turned off.

In an optional embodiment, the method further comprises:

the ninth determining module is used for determining the fan rotating speed of the indoor unit according to the first distance between the set area and the air conditioner;

and the ninth control module is used for controlling the air conditioner according to the rotating speed of the fan.

the fourth adjusting module is used for adjusting the set area detected by the infrared pyroelectric sensor when the personnel existence state represents that personnel exist in the set area;

when the change cycle of the existing state of the personnel is smaller than the set cycle, the first zero determining module determines a set air deflector angle according to the installation height of the air conditioner, the sixth distance between the edge of the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and the first zero control module is used for controlling the air conditioner according to the set angle of the air deflector.

In an optional implementation manner, the fourth adjusting module is specifically configured to:

In an optional implementation manner, after the set area detected by the infrared pyroelectric sensor is adjusted according to the first trend, if the existence state of the person does not change after the sixth time, the set area detected by the infrared pyroelectric sensor is adjusted according to the second trend.

In an alternative embodiment, the air conditioner comprises a steerable infrared pyroelectric sensor and a steerable distance measuring device, and the control device comprises:

the second control module is used for controlling the steerable infrared pyroelectric sensor to search all areas in the area to be temperature-regulated according to a set search strategy;

the second acquisition module is used for acquiring a first area where a person is located through the steerable infrared pyroelectric sensor;

the third acquisition module is used for acquiring a third distance between a moving person in the first area and the air conditioner through the steerable distance measuring device;

the second determining module is used for determining a set air deflector angle according to the installation height and the third distance of the air conditioner, or the installation height, the third distance and the set personnel height of the air conditioner, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and the third control module is used for controlling the air conditioner according to the set angle of the air deflector.

In an optional embodiment, the method further comprises:

the first adjusting module is used for adjusting the detection area of the steerable infrared pyroelectric sensor after the steerable infrared pyroelectric sensor is a horizontal steering infrared pyroelectric sensor and a first area where a person is located is obtained through the steerable infrared pyroelectric sensor;

and the fourth acquisition module is used for acquiring a third distance between the moving personnel in the first area and the air conditioner through the steerable distance measuring device when the change cycle of the existing state of the personnel is smaller than the set cycle.

In an optional implementation manner, the first adjusting module is specifically configured to: and adjusting the detection area of the steerable infrared pyroelectric sensor according to a first trend, and when the state of the person is changed, adjusting the detection area of the steerable infrared pyroelectric sensor according to a second trend opposite to the first trend.

In an optional implementation manner, the second determining module is specifically configured to: the method comprises the steps of obtaining a first rotating angle of the steerable infrared pyroelectric sensor, determining a second rotating angle of the steerable distance measuring device according to the first rotating angle, and controlling the steerable distance measuring device to rotate according to the second rotating angle.

In an alternative embodiment, a control apparatus of a blow-through preventing air conditioner includes:

the first and second acquisition modules are used for acquiring the existence states of people in two or more set areas through two or more infrared pyroelectric sensors;

the first determining module is used for determining the movement state of the personnel according to the existence states of the personnel in the two or more set areas when the existence states of the personnel in the two or more set areas sequentially represent the existence of the personnel;

the first and second determining module is used for determining a set deviation distance according to the movement state of the person;

the first determining module is used for determining a set air deflector angle according to the installation height of the air conditioner and a first distance between a set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and a set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance;

In an alternative embodiment, the switching time between the presence states of persons of two or more defined regions is positively correlated with the set deviation distance.

In an optional implementation manner, the first and second determining modules are specifically configured to:

In an alternative embodiment, the distance measuring device is a steerable distance measuring device.

the first third acquisition module is used for acquiring the existence state of personnel in a set area through the infrared pyroelectric sensor;

the first and fourth acquisition modules are used for acquiring the identity information of the personnel when the existence state of the personnel represents the existence of the personnel in the set area;

the first and fourth determining modules are used for determining the set deviation distance according to the personnel identity information;

the first and fifth determining module is used for determining a set air deflector angle according to the installation height of the air conditioner and a first distance between a set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and a set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance;

and the first and second control modules are used for controlling the air conditioner according to the angle of the air deflector.

In an optional implementation manner, the first fourth obtaining module is specifically configured to:

acquiring face information of a person through a depth sensor;

In an optional implementation manner, the first fourth determining module is specifically configured to:

acquiring the rotating speed of a fan of an indoor unit of an air conditioner;

In an alternative embodiment, the set deviation distance is positively correlated to the fan speed.

the first acquisition module is used for acquiring the existence state of personnel in the set area through the infrared pyroelectric sensor;

the first acquisition module is used for acquiring the number information of the personnel in the set area when the personnel existence state represents the existence of the personnel in the set area;

the first determining module is used for determining the set deviation distance according to the personnel number information;

the first and seventh determining modules are used for determining a set air deflector angle according to the installation height of the air conditioner and a first distance between a set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and a set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance;

and the first third control module is used for controlling the air conditioner according to the angle of the air deflector.

determining the number grade of the number of the personnel;

acquiring the rotating speed of a fan of an indoor unit of an air conditioner;

the first and seventh acquisition modules are used for acquiring the existence state of personnel in the set area through the infrared pyroelectric sensor;

the first and eighth determining module is used for determining a set deviation distance according to a second moment or a set fan rotating speed and a set deviation distance of the indoor fan when the presence state of the person indicates that the person exists in the set area;

the first ninth determining module is used for determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and the first and fourth control modules are used for controlling the air conditioner according to the set angle of the air deflector, or the set angle of the air deflector and the set rotating speed of the fan.

In an optional implementation manner, the first seventh obtaining module is specifically configured to:

the first eighth determining module is specifically configured to:

In an optional implementation manner, the determining the set deviation distance according to the movement state of the person and the second time includes:

and determining the set deviation distance in the preset control mode.

In an alternative embodiment, the preset control mode includes two or more different set deflection distances different in the blow-through prevention effect.

the first eight acquisition module is used for acquiring the existence state of personnel in the set area through the infrared pyroelectric sensor;

the first nine acquisition module is used for acquiring the brightness information of the set area;

the second zero determining module is used for determining the actual personnel existence state according to the personnel existence state and the brightness information;

the second determining module is used for determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height when the actual personnel existence state is that personnel exist, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

and the first and fifth control modules are used for controlling the air conditioner according to the set angle of the air deflector.

In an optional implementation manner, the second zero determination module is specifically configured to:

and when the personnel existence state is the existence of personnel, if the brightness information is greater than the set brightness, the actual personnel existence state is the existence of personnel.

In an optional embodiment, the method further comprises:

and the second determining module is used for determining the set deflection distance according to the brightness information before determining the angle of the air deflector when the brightness information is the natural brightness.

In an optional embodiment, the method further comprises:

the first recording module is used for recording a second moment when the existence state of the personnel in the set area is acquired through the infrared pyroelectric sensor;

and the second determining module is used for determining the set deviation distance according to a second moment before determining the set air deflector angle when the actual personnel existence state is the personnel existence state.

In an alternative embodiment, the air conditioner including a steerable ranging device control device includes:

the second zero acquisition module is used for acquiring the area information of the temperature adjusting space through the steerable distance measuring device;

the second acquisition module is used for acquiring the existence state of personnel in the set area through the infrared pyroelectric sensor;

the first correction module is used for correcting the fan rotating speed of the indoor unit according to the area information when the personnel existence state represents that personnel exist in the set area;

a fourth determining module, configured to determine a set air deflector angle according to the installation height of the air conditioner and the first distance between the set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner, and the set personnel height, so that the distance between the air supply direction and the personnel is greater than or equal to the corrected set deviation distance;

and the sixth control module is used for controlling the air conditioner according to the set air deflector angle and the corrected fan rotating speed.

In an optional implementation manner, the second zero obtaining module is specifically configured to:

In an optional implementation manner, the correcting the fan rotation speed of the indoor unit according to the area information includes:

In an alternative embodiment, the area represented by the area information is positively correlated with the fan speed.

In an alternative embodiment, the air conditioner includes a universal ranging device, and the control device includes:

the second acquisition module is used for acquiring the volume information of the temperature adjusting space through the universal distance measuring device;

the second correction module is used for correcting the fan rotating speed of the indoor unit according to the volume information when the personnel existence state represents that personnel exist in the set area;

the second determining module is used for determining a set air deflector angle according to the installation height of the air conditioner and the first distance between the set area and the air conditioner, or the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to the corrected set deflection distance;

and the first seventh control module is used for controlling the air conditioner according to the set air deflector angle and the corrected fan rotating speed.

In an optional implementation manner, the second obtaining module is specifically configured to:

In an optional implementation manner, the modifying the fan speed of the indoor unit according to the volume information includes:

In an alternative embodiment, the volume represented by the volume information is positively correlated with the fan speed.

As shown in fig. 8, in an alternative embodiment, the computer device includes a memory 802, a processor 801 and a program stored on the memory 802 and executable by the processor, and the processor 801 executes the program to implement the control method of the blow-through prevention air conditioner as described above.

In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as a memory comprising instructions, executable by a processor to perform the foregoing method is also provided. The non-transitory computer readable storage medium may be a read Only memory rom (read Only memory), a random Access memory ram (random Access memory), a magnetic tape, an optical storage device, and the like.

Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention. It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the embodiments disclosed herein, it should be understood that the disclosed methods, articles of manufacture (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

It should be understood that the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. The present invention is not limited to the procedures and structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims

1. A control method of a blow-through preventing air conditioner including a driving mechanism for driving a lens to change a distance between the lens and a pyroelectric sensitive element of an infrared pyroelectric sensor, a lens and an infrared pyroelectric sensor, characterized by comprising:

controlling the driving mechanism to move continuously within a second time so that the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor is changed within a first set distance range;

acquiring the existence state of a first person in a set area through the infrared pyroelectric sensor;

controlling the driving mechanism to be still all the time in a third time;

determining the existence state of an actual person according to the existence state of the first person and the existence state of the second person;

when the actual personnel existence state is that a personnel exists, determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height, so that the distance between the air supply direction and the personnel is larger than or equal to a set deviation distance;

and controlling the air conditioner according to the set air deflector angle.

2. The control method according to claim 1, wherein the determining an actual person presence state from the first person presence state and the second person presence state includes:

3. The control method according to claim 1, further comprising, before acquiring the actual human presence state within the set area:

controlling the driving mechanism according to a set strategy to adjust the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor;

when the actual person presence state is a person presence, the control method further includes:

acquiring a fourth distance between the lens and the infrared pyroelectric sensor;

and determining the set area according to the fourth distance.

4. A control device of a blow-through preventing air conditioner including a driving mechanism, a lens, and an infrared pyroelectric sensor, the driving mechanism being configured to drive the lens so as to change a distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor, the control device comprising:

the fourth control module is used for controlling the driving mechanism to continuously move in a second time so as to enable the distance between the lens and a pyroelectric sensitive element of the infrared pyroelectric sensor to change within a first set distance range; controlling the driving mechanism to be still all the time in a third time;

the sixth acquisition module is used for acquiring the existing state of the first person in the set area through the infrared pyroelectric sensor when the driving mechanism is controlled to continuously move; when the driving mechanism is controlled to be still all the time, the existence state of a second person in a set area is obtained through the infrared pyroelectric sensor; determining the existence state of an actual person according to the existence state of the first person and the existence state of the second person;

the fifth determining module is used for determining a set air deflector angle according to the installation height of the air conditioner, the first distance between the set area and the air conditioner and the set personnel height when the actual personnel existence state is that personnel exist, so that the distance between the air supply direction and the personnel is larger than or equal to the set deviation distance;

5. The control apparatus of claim 4, wherein said determining an actual person presence state from said first person presence state and said second person presence state comprises:

6. The control device according to claim 4, characterized by further comprising:

the third adjusting module is used for controlling the driving mechanism according to a set strategy to adjust the distance between the lens and the pyroelectric sensitive element of the pyroelectric infrared sensor before acquiring the actual personnel existence state in the set area;

a seventh obtaining module, configured to obtain a fourth distance between the lens and the pyroelectric infrared sensor when the actual presence state of the person is that the person is present;

7. A computer device comprising a memory, a processor, and a program stored on the memory and executable by the processor, wherein the processor implements the control method of the blow-through air conditioner according to any one of claims 1 to 3 when executing the program.

8. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the control method of a blow-through air conditioner according to any one of claims 1 to 3.