CN111720980B - Air conditioner indoor unit and control method thereof - Google Patents
Air conditioner indoor unit and control method thereof Download PDFInfo
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- CN111720980B CN111720980B CN202010529825.8A CN202010529825A CN111720980B CN 111720980 B CN111720980 B CN 111720980B CN 202010529825 A CN202010529825 A CN 202010529825A CN 111720980 B CN111720980 B CN 111720980B
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 84
- 230000035807 sensation Effects 0.000 claims abstract description 22
- 230000015654 memory Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000003570 air Substances 0.000 description 267
- 230000000903 blocking effect Effects 0.000 description 20
- 230000000694 effects Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 239000012080 ambient air Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner indoor unit and a control method thereof, wherein a laser detection device is installed on the air conditioner indoor unit, and the control method comprises the following steps: driving a laser detection device to emit a laser detection signal to the ambient environment of an indoor unit of an air conditioner; acquiring a reflection signal of a laser detection signal; judging whether a shielding event occurs in the surrounding environment according to the reflected signal, wherein the shielding event is an event that at least part of body parts of the target user in the surrounding environment form body parts without wind sensation due to the fact that the body parts are shielded by the obstacles; if so, acquiring the running state of the indoor unit of the air conditioner and the attribute information of the shielding event; the air outlet direction and/or the air outlet speed of the air conditioner indoor unit are/is adjusted according to the running state of the air conditioner indoor unit and the attribute information of the shielding event, so that the air supply airflow of the air conditioner indoor unit can automatically avoid obstacles, and the problems of poor wind sensation, poor comfort and the like caused by the fact that part of the body part of a target user is shielded by the obstacles can be reduced or avoided.
Description
Technical Field
The invention relates to the indoor air conditioning technology, in particular to an air conditioner indoor unit and a control method thereof.
Background
As an indoor air conditioning device, an indoor unit of an air conditioner can adjust parameters such as temperature and humidity of indoor ambient air by blowing a blowing air flow to the indoor environment.
In the prior art, when an obstacle exists in an indoor environment and the air supply airflow blowing to a target user is blocked by the obstacle, the air conditioner indoor unit cannot automatically adjust the air outlet direction of the air supply airflow to avoid the obstacle, so that the air supply airflow cannot be blown to part of the body of the target user, the overall wind feeling of the target user is poor, and the air conditioning effect of the air conditioner indoor unit is reduced.
Therefore, how to make the air flow of the indoor unit of the air conditioner automatically avoid the obstacle becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
An object of the present invention is to provide an indoor unit of an air conditioner and a control method thereof, which at least solves any of the above technical problems.
A further object of the present invention is to provide an air conditioner that can automatically avoid obstacles.
It is yet a further object of the present invention to improve the conditioning effect of the indoor ambient air of the indoor unit of an air conditioner.
According to an aspect of the present invention, there is provided a method for controlling an air conditioner indoor unit, the air conditioner indoor unit having a laser detection device mounted thereon, the method comprising: driving a laser detection device to emit a laser detection signal to the ambient environment of an indoor unit of an air conditioner; acquiring a reflected signal of a laser detection signal; judging whether a shielding event occurs in the surrounding environment according to the reflected signal, wherein the shielding event is an event that at least part of body parts of the target user in the surrounding environment form body parts without wind sensation due to the fact that the body parts are shielded by the obstacles; if so, acquiring the running state of the indoor unit of the air conditioner and the attribute information of the shielding event; and adjusting the air outlet direction and/or the air outlet speed of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event.
Optionally, in the step of driving the laser detection device to emit a laser detection signal to the environment around the indoor unit of the air conditioner, the laser detection signal is emitted from the air outlet of the indoor unit of the air conditioner towards the target user; and the step of judging whether the shielding event occurs in the surrounding environment according to the reflected signal comprises the following steps: respectively acquiring the position of a target user and the position of an obstacle according to the reflected signals; and judging whether a shielding event occurs in the surrounding environment according to the position of the target user and the position of the obstacle.
Optionally, the step of determining whether an occlusion event occurs in the surrounding environment according to the position of the target user and the position of the obstacle includes: acquiring the distance between a target user and an air conditioner indoor unit according to the position of the target user, and recording the distance as a first distance; acquiring the distance of the obstacle relative to the indoor unit of the air conditioner according to the position of the obstacle, and recording the distance as a second distance; judging whether the first distance is greater than the second distance; and if so, determining that the occlusion event occurs in the surrounding environment.
Optionally, the step of determining whether an occlusion event occurs in the surrounding environment according to the reflection signal includes: acquiring body contour information of a target user according to the reflection signal; the body contour information marks the intensity of a reflected signal of the laser detection signal reflected by each body part of the target user; and judging whether a shielding event occurs in the surrounding environment according to the body contour information.
Optionally, the step of determining whether an occlusion event occurs in the surrounding environment according to the body contour information includes: judging whether the intensities of the reflected signals of the laser detection signals marked by the body contour information after being reflected by all body parts of the target user are consistent or not; if not, determining that the occlusion event occurs in the surrounding environment.
Optionally, in the step of obtaining the operation state of the air conditioner indoor unit and the attribute information of the shielding event, the operation state includes a temperature adjustment mode of the air conditioner indoor unit, and the attribute information includes a position of a body part, which is not shielded by an obstacle, of the target user and is affected by wind; and the step of adjusting the air outlet direction of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event comprises the following steps: judging whether the temperature adjusting mode of the indoor unit of the air conditioner is a refrigerating mode or not; if so, the air outlet direction of the indoor unit of the air conditioner is adjusted to be towards the wind-sensitive body part of the target user for supplying air.
Optionally, the step of adjusting the air outlet direction of the indoor unit of the air conditioner to supply air towards the body part with wind sensation of the target user includes: judging whether the positions of the wind-sensitive body parts of the target user are multiple or not; if yes, comparing the heights of the positions of the body parts with wind sensation to obtain the highest value; the air outlet direction of the indoor unit of the air conditioner is adjusted to supply air towards the body part with wind sensation corresponding to the highest value.
Optionally, in the step of obtaining the attribute information of the operating state and the blocking event of the indoor unit of the air conditioner, the attribute information further includes an area of the non-wind-sensing body part of the target user; and the step of adjusting the air outlet speed of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event comprises the following steps: judging whether the area of the non-wind-sensing body part of the target user is larger than a set area threshold value or not; if so, adjusting the air outlet speed of the indoor unit of the air conditioner to the set air outlet speed.
Optionally, in the step of obtaining the attribute information of the operating state and the blocking event of the indoor unit of the air conditioner, the attribute information further includes positions of gaps on two lateral sides of the obstacle in the surrounding environment; and the step of adjusting the air outlet direction of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event comprises the following steps: judging whether the temperature adjusting mode of the indoor unit of the air conditioner is a heating mode or not; if so, the air outlet direction of the indoor unit of the air conditioner is adjusted to be towards the gap for air supply.
According to another aspect of the present invention, there is provided an indoor unit of an air conditioner, equipped with a laser detection device, comprising: the control system comprises a processor and a memory, wherein a control program is stored in the memory, and the control program is used for realizing the control method of any one of the control methods when being executed by the processor.
According to the air conditioner indoor unit and the control method thereof, the air conditioner indoor unit can drive the laser detection device to emit the laser detection signal to the surrounding environment, the reflected signal of the laser detection signal can be analyzed, whether a shielding event occurs in the surrounding environment can be determined according to the analysis result, the air outlet direction and/or the air outlet speed of the air conditioner indoor unit can be adjusted according to the running state of the air conditioner indoor unit and the attribute information of the shielding event under the condition that the shielding event occurs, therefore, the air supply airflow of the air conditioner indoor unit can automatically avoid obstacles, and the problems of poor wind sensation, poor comfort and the like caused by the fact that part of the body part of a target user is shielded by the obstacles can be reduced or avoided.
Further, according to the air conditioner indoor unit and the control method thereof, under the condition that a shielding event occurs in the surrounding environment, the air conditioner indoor unit can adjust the air outlet direction and/or the air outlet speed in a targeted manner according to different temperature adjusting modes, so that the air supply effects of the different temperature adjusting modes can be improved, and the indoor environment air adjusting effect of the air conditioner indoor unit can be improved.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of an air conditioner indoor unit according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating a control method of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 4 is a control flow chart of an air conditioner indoor unit according to an embodiment of the present invention;
fig. 5 is a schematic view of a usage scenario of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 6 is a schematic view of a usage scenario of an indoor unit of an air conditioner according to another embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic diagram of an air conditioner indoor unit 10 according to an embodiment of the present invention, and fig. 2 is a schematic block diagram of the air conditioner indoor unit 10 according to an embodiment of the present invention.
The indoor unit 10 and the outdoor unit of the air conditioner can perform effective cooperative operation through the compression refrigeration system to complete the refrigeration and heating cycle of the air conditioner, thereby realizing the cold and heat regulation of the indoor ambient air.
The indoor unit 10 may be a vertical cabinet, such as a square cabinet or a circular cabinet, or a wall-mounted unit, but is not limited thereto.
The wall-mounted unit is used as an example in the embodiment, and those skilled in the art should be able to expand the indoor unit models based on the understanding of the embodiment, and therefore, the example is not repeated here.
The air conditioner indoor unit 10 may generally include: the laser detection device 200, the processor and the memory may further include a housing 500, an air guide mechanism, an air supply mechanism and a heat exchanger.
The housing 500 has an air return opening, an air outlet 501, and an air handling channel between the air return opening and the air outlet 501. The housing 500 may be generally rectangular, cylindrical, or any other shape. In this embodiment, the housing 500 may have a substantially rectangular parallelepiped shape.
Ambient air may enter the interior of the housing 500 through the air return opening. The indoor unit 10 blows the air flow inside the casing 500 to the surrounding environment through the outlet 501.
The air return opening may be provided at the top, back, side, or front of the case 500. The outlet 501 may be disposed at the bottom, front, or side of the housing 500. In this embodiment, the air return opening may be disposed on the top plate of the housing 500, and the air outlet 501 may be disposed at a position where the front plate and the bottom plate of the housing 500 are connected.
The laser detection device 200 may be a LiADR lidar sensor. The laser detection device 200 may be disposed on the housing 500, for example, at the geometric center of the air outlet 501, or disposed on the front panel of the housing 500 and adjacent to the air outlet 501, so that the laser detection signal emitted by the laser detection device 200 can be substantially regarded as being emitted from the air outlet 501.
The laser detection apparatus 200 may rapidly emit a laser detection signal, e.g. laser pulses (typically up to 150000 pulses per second), into the surrounding environment for detecting information about the target user and the obstacle in the surrounding environment, e.g. one or more of body contour information of the target user, a position of the obstacle, an object model in the surrounding environment, etc. An obstacle may refer to one or more of a sofa, a cabinet, a wall, etc. in the surrounding environment, relative to the target user. The laser detection device 200 can identify the target user in the surrounding environment according to the biological features such as respiration, heartbeat, and/or pulse in the reflected signal. The laser wavelength in the laser detection signal can be 900-1500 nm, the resolution ratio accuracy is high, dust and smoke in the room environment are less, the interference on the laser detection signal is less, and the use requirement of the room environment can be met.
Due to the difference in the room layout and the home arrangement positions, in the daily use process, the situation that the air conditioner indoor unit 10 and the target user are blocked by objects such as sofas and closets occurs, and the object blocking the target user and the air conditioner indoor unit 10 is a barrier. The obstacle divides the surrounding space into two spaces, i.e., a space where the air supply from one side is not affected and a space located behind the obstacle and where the air supply flow of the indoor unit 10 of the air conditioner does not reach. For example, in the cooling mode, when the supply air is blown from top to bottom, a closet installed above the right side of the indoor unit 10 of the air conditioner will block a target user who needs cooling behind the closet, or in the heating mode, the supply air is blown from bottom to top, and a sofa placed at the oblique lower side of the indoor unit of the air conditioner will block a user who needs warming feet behind the oblique sofa.
The laser detection signal is reflected back to the laser detection device 200 after reaching an object or target user in the surrounding environment. By analyzing the reflected signals, the laser detection device 200 can precisely calculate and determine the distance between the laser detection device 200 and the object or target user in the surrounding environment, and can detect the exact size or contour of the object or target user in the surrounding environment, thereby precisely locating all the objects and/or target users in the surrounding environment. For example, the laser detection device 200 accurately computationally determines the distance between the laser detection device 200 and the obstacle by measuring the time from the emission to the return of the laser detection signal. By using the laser detection device 200, a high-resolution map can be drawn for all objects in the surrounding environment, so as to obtain an object model in the surrounding environment.
The air guiding mechanism is disposed at the air outlet 501, and may include at least one air guiding plate, or may include a plurality of swing blades, for adjusting the air outlet direction of the indoor unit 10 of the air conditioner.
The air supply mechanism is disposed within the housing 500 and within the air handling passage, which may include an air supply fan, such as a cross-flow fan, a centrifugal fan, or an ion wind generating device. The blower is configured to cause ambient indoor air to flow from the return air inlet into the air treatment channel to form a treated air stream, which is then blown out of the outlet 501. "treating" in "treated" may refer to treating one or more of the temperature, humidity, oxygen content, bacteria content, etc. of a treated gas stream.
A heat exchanger is disposed in the air handling passage and is configured to exchange heat with a process air stream flowing therethrough. The type of the heat exchanger can be selected according to actual use requirements, and for example, the heat exchanger can be a tube-fin heat exchanger, a plate heat exchanger or any other type of heat exchanger.
The memory 420 and the processor 410 may form a control means. The control device may be disposed within the housing 500. In other alternative embodiments, the control device may also be disposed outside the casing 500 and integrated with the appliance control system.
The memory 420 stores a control program 421, and the control program 421 is executed by the processor 410 to implement the control method of the air conditioner indoor unit 10 according to any one of the following embodiments. The processor 410 may be a Central Processing Unit (CPU), or a digital processing unit (DSP), etc. The memory 420 is used to store programs executed by the processor 410. The memory 420 may be any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. Memory 420 may also be a combination of various memories 420. Since the control program 421 is executed by the processor 410 to implement the processes of the method embodiments described below and achieve the same technical effects, the detailed description is omitted here to avoid repetition.
Fig. 3 is a schematic diagram of a control method of the indoor unit 10 of the air conditioner according to an embodiment of the present invention. The control method of the air conditioner indoor unit 10 may generally include:
step S302, the laser detection device 200 is driven to emit a laser detection signal into the environment around the indoor unit 10 of the air conditioner.
For example, the air conditioner indoor unit 10 may be preset with a blowing mode in which the air flow of the air conditioner indoor unit 10 is directly blown to the target user and the wind moves along with the user. The indoor unit 10 of the air conditioner can drive the laser detection device 200 to emit a laser detection signal to the surrounding environment after receiving the starting instruction of the blowing mode.
In the step of driving the laser detection device 200 to emit the laser detection signal into the environment around the air conditioner indoor unit 10, the laser detection signal may be emitted from the air outlet 501 of the air conditioner indoor unit 10 toward the target user, so that the laser detection signal may pass through all body parts of the target user in the propagation process. For example, the emitting point of the laser detection signal may be the geometric center of the air outlet 501. The emission direction of the laser detection signal refers to the direction of a connecting line between the emission point and a target user.
In other alternative embodiments, the emitting point of the laser detection signal may be a position of the housing 500 near the geometric center of the air outlet 501, for example, above or below the air outlet 501. Since the distance between the indoor unit 10 of the air conditioner and the target user is much greater than the distance between the emitting point of the laser detection signal and the geometric center of the air outlet 501, the emitting direction of the laser detection signal can be regarded as emitting from the air outlet 501 toward the target user.
Step S304, acquiring a reflection signal of the laser detection signal. Since the laser detection signal is regarded as being emitted from the air outlet 501 toward the target user, the reflected signal of the laser detection signal includes information such as body contour information of the target user and position information of an obstacle existing in the emission direction of the laser detection signal.
Step S306, judging whether a shielding event occurs in the surrounding environment according to the reflection signal, wherein the shielding event is an event that at least part of the body part of the target user in the surrounding environment is shielded by an obstacle to form a body part without wind sensation. And if all body parts of the target user are not shielded by the obstacles, determining that no shielding event occurs in the surrounding environment. The term "blocking" refers to that the obstacle is located in the emitting direction of the laser detection signal and between the air outlet 501 and the target user, and when the indoor unit 10 of the air conditioner blows the airflow toward the target user, the obstacle blocks the airflow, so that the airflow cannot be directly blown to part of the body of the target user. The body part of the target user which is not shielded by the obstacle is a wind-sensitive body part.
The step of judging whether the shielding event occurs in the surrounding environment according to the reflected signal comprises the following steps: and acquiring body contour information of the target user according to the reflected signals, marking the intensity of the reflected signals of the laser detection signals reflected by each body part of the target user on the body contour information, and judging whether a shielding event occurs in the surrounding environment according to the body contour information.
If the partial body part of the target user is blocked by the obstacle to form the non-wind-sensing body part, the intensity of the reflected signal of the non-wind-sensing body part marked by the body contour information is weaker than that of the reflected signal of the wind-sensing body part marked by the body contour information.
The step of judging whether the occlusion event occurs in the surrounding environment according to the body contour information comprises the following steps: and judging whether the intensities of the reflected signals of the laser detection signals marked by the body contour information after being reflected by all body parts of the target user are consistent, if not, determining that a shielding event occurs in the surrounding environment, and if so, determining that no shielding event occurs in the surrounding environment.
In the step of determining whether the intensities of the reflected signals of the laser detection signals marked by the body contour information after being reflected by the body parts of the target user are consistent, the maximum value and the minimum value of the intensities of the reflected signals of the laser detection signals marked by the body contour information after being reflected by the body parts of the target user can be extracted first, and if the difference between the maximum value and the minimum value is greater than a set difference threshold, the intensities of the reflected signals of the laser detection signals marked by the body contour information after being reflected by the body parts of the target user are determined to be inconsistent.
In alternative embodiments, the determination of whether an occlusion event occurs in the surrounding environment may be transformed. The step of determining whether a blocking event occurs in the surrounding environment according to the reflected signal may further include: and respectively acquiring the position of the target user and the position of the obstacle according to the reflected signals, and judging whether a shielding event occurs in the surrounding environment according to the position of the target user and the position of the obstacle. Since there are a plurality of objects in the surrounding environment, the obstacle may refer to a first obstacle detected when the laser detection signal propagates in the transmission direction.
The step of judging whether a shielding event occurs in the surrounding environment according to the position of the target user and the position of the obstacle comprises the following steps: the method comprises the steps of obtaining the distance between a target user and the air conditioner indoor unit 10 according to the position of the target user, recording the distance as a first distance, obtaining the distance between a barrier and the air conditioner indoor unit 10 according to the position of the barrier, recording the distance as a second distance, judging whether the first distance is larger than the second distance, if so, determining that a shielding event occurs in the surrounding environment, and if not, determining that the shielding event does not occur in the surrounding environment.
A spatial rectangular coordinate system may be preset in the surrounding environment, and the geometric center of the air outlet 501 of the indoor unit 10 of the air conditioner may be the origin of the spatial rectangular coordinate system. The position of the target user may refer to coordinates of the target user in a rectangular spatial coordinate system, and the position of the obstacle may refer to coordinates of the obstacle in a stereoscopic spatial coordinate system. The distance of the target user from the air conditioner indoor unit 10 and the distance of the obstacle from the air conditioner indoor unit 10 can be calculated from the position of the target user and the position of the obstacle, respectively.
In the case where the first distance is greater than the second distance, an obstacle is located between the target user and the air conditioner indoor unit 10 in the emission direction of the laser detection signal. In the case where the first distance is smaller than the second distance, the target user is located between the obstacle and the indoor unit 10 of the air conditioner in the emission direction of the laser detection signal.
In step S308, if it is determined that a blocking event occurs in the surrounding environment, the operation state of the indoor unit 10 of the air conditioner and the attribute information of the blocking event are obtained. The operating state may include a tempering mode, which may include a cooling mode and a heating mode. The attribute information of the occlusion event may include: one or more of information on a position of the wind-sensitive body part of the target user that is not shielded by the obstacle, an area of the non-wind-sensitive body part of the target user, positions of gaps on both lateral sides of the obstacle in the surrounding environment, and the like.
The indoor unit 10 may further analyze the reflected signal of the laser detection signal to determine one or more of the attribute information of the occlusion event. For example, the location of the wind-sensitive body part and the area of the non-wind-sensitive body part of the target user may be further determined from the body contour information. The body parts with wind and the body parts without wind can be identified according to the intensity of the reflected signals, and then the positions of the body parts with wind are determined. The air conditioner indoor unit 10 may analyze the body contour information, draw a body contour model of the target user, and calculate the area of the body part without wind sensation according to the body contour model.
A plurality of objects may be arranged in the surrounding environment, such as sofas, cabinets, walls, etc. When an object is located between the target user and the outlet 501, the object becomes an obstacle. The "transverse direction" is relative to the actual state of the air conditioner indoor unit 10, and may be a substantially horizontal direction, and is parallel to the transverse extending direction of the air outlet 501. The space on both lateral sides of the obstacle means a space on both lateral sides of the obstacle where no other object is present. For example, if the obstacle is a sofa, the gaps on both lateral sides of the obstacle are the gaps located on both lateral sides of the sofa. In some alternative embodiments, in the case that it is determined that the occlusion event occurs in the surrounding environment, the laser detection apparatus 200 may be driven to emit a laser detection signal to the entire surrounding environment, and an object model of the entire surrounding environment may be established according to a reflection signal of the laser detection signal, where the object model includes contour information and position information of all objects (including obstacles) in the surrounding environment. From the object model of the surroundings, the gaps on both lateral sides of the obstacle can be determined.
In step S310, the air outlet direction and/or the air outlet speed of the air conditioner indoor unit 10 are adjusted according to the operating state of the air conditioner indoor unit 10 and the attribute information of the blocking event. In the case where the air conditioner indoor unit 10 does not acquire the attribute information of the operating state or the blocking event, the air conditioner indoor unit 10 does not make any adjustment.
In this embodiment, in the step of obtaining the operation state of the air conditioner indoor unit 10 and the attribute information of the blocking event, the operation state includes the temperature adjustment mode of the air conditioner indoor unit 10, and the attribute information includes the position of the body part of the target user, which is not blocked by the obstacle and is windy. The step of adjusting the air outlet direction of the indoor unit 10 of the air conditioner according to the running state of the indoor unit 10 of the air conditioner and the attribute information of the shielding event includes: and judging whether the temperature adjusting mode of the air conditioner indoor unit 10 is the refrigerating mode, if so, adjusting the air outlet direction of the air conditioner indoor unit 10 to supply air towards the body part with wind sensation of the target user.
In some further embodiments, the step of adjusting the air outlet direction of the air conditioner indoor unit 10 to supply air towards the wind-sensitive body part of the target user includes: and judging whether the positions of the wind-sensitive body parts of the target user are multiple, if so, comparing the heights of the positions of the multiple wind-sensitive body parts to obtain a maximum value, and adjusting the air outlet direction of the indoor unit 10 of the air conditioner to supply air towards the wind-sensitive body parts corresponding to the maximum value.
If the wind-sensitive body area of the target user is not a continuous whole, the target user has a plurality of wind-sensitive body areas.
For example, if the head, abdomen, and below of the target user are wind-sensitive body parts, and the chest is a non-wind-sensitive body part, there are two positions of the wind-sensitive body parts. The abdomen and the lower part are continuous whole and can be regarded as a body part with wind sensation. And the height of the head of the target user is greater than the height of the abdomen and the lower part, the air conditioner indoor unit 10 can be controlled to supply air towards the head of the target user.
Because the density of the cold air is high, the temperature of the supplied air flow is low in the refrigeration mode, and the air outlet direction of the air conditioner indoor unit 10 is adjusted to supply air towards the wind-sensitive body part corresponding to the highest value under the condition that a plurality of wind-sensitive body parts are arranged, so that the cooling effect of the supplied air flow can be improved.
In some further embodiments, if the target user has one location of the wind-sensitive body part, the air conditioner indoor unit 10 is directly controlled to supply air toward the wind-sensitive body part. If the position of the body part of the target user with the wind sensation is not obtained, the indoor unit 10 of the air conditioner is not adjusted.
In still further embodiments, in the step of obtaining the attribute information of the operating state of the air conditioner indoor unit 10 and the blocking event, the attribute information further includes an area of a body part without wind sensation of the target user, and the step of adjusting the air outlet speed of the air conditioner indoor unit 10 according to the operating state of the air conditioner indoor unit 10 and the attribute information of the blocking event includes: and judging whether the area of the body part without wind sensation of the target user is larger than a set area threshold value, if so, adjusting the air outlet speed of the indoor unit 10 of the air conditioner to be the set air outlet speed, and if not, not adjusting the air outlet speed of the indoor unit 10 of the air conditioner. The set air outlet speed may be the maximum air speed of the indoor unit 10 of the air conditioner.
Under the condition that the area of the body part without wind sensation of the target user is larger than the set area threshold value, the air outlet speed of the air conditioner indoor unit 10 is adjusted to be the set air outlet speed, the refrigeration effect of the air conditioner indoor unit 10 can be improved, adverse effects such as poor wind sensation and unobvious cooling effect caused by shielding events are reduced, and the comfort level of the target user is improved.
In other optional embodiments, in the step of obtaining the operating state of the air conditioner indoor unit 10 and the attribute information of the blocking event, the attribute information further includes positions of gaps on two lateral sides of an obstacle in the surrounding environment, and the step of adjusting the air outlet direction of the air conditioner indoor unit 10 according to the operating state of the air conditioner indoor unit 10 and the attribute information of the blocking event includes: and judging whether the temperature adjusting mode of the indoor unit 10 of the air conditioner is the heating mode, if so, adjusting the air outlet direction of the indoor unit 10 of the air conditioner to be towards the gap for air supply. The control method of the embodiment is particularly suitable for the scene that the legs and the lower parts of the target user are shielded by the obstacles.
Because the density of the hot air is relatively low, in the heating mode, if a shielding event occurs in the surrounding environment, the air flow is blown towards the gaps at the two transverse sides of the barrier, and the heating effect of the air flow can be improved.
In the prior art, in the identification technology of the obstacles, the detection distance of part of air conditioner indoor units is short, objects with small sizes (sizes influencing actual air supply experience) cannot be accurately identified, large-size obstacles also have certain error identification probability, and the resolution and the accuracy rate cannot meet the requirement of accurately adjusting air supply. The air conditioner indoor unit of the embodiment utilizes the laser detection device to analyze the obstacles and the target users in the surrounding environment, and adjusts the air outlet direction and/or the air outlet speed according to the analysis result, so that the obstacle avoidance and accurate air supply can be realized, and the air supply effect is greatly improved.
Fig. 4 is a control flow chart of the air conditioner indoor unit 10 according to one embodiment of the present invention.
Step S402, the laser detection device 200 is driven to emit a laser detection signal into the environment around the indoor unit 10 of the air conditioner.
Step S404, a reflection signal of the laser detection signal is acquired.
And step S406, acquiring body contour information of the target user according to the reflection signal. The body contour information indicates the intensity of the reflected signal of the laser probe signal reflected by each body part of the target user.
Step S408, determining whether the intensities of the reflected signals of the laser detection signal indicated by the body contour information after being reflected by each body part of the target user are consistent, if yes, returning to execute step S402, and if not, executing step S410.
Step S410, it is determined that an occlusion event occurs in the surrounding environment.
In step S412, the operation state of the air conditioner indoor unit 10 and the attribute information of the blocking event are obtained. The operation state includes a temperature adjustment mode of the air conditioner indoor unit 10, and the attribute information includes information on a position of a wind-sensitive body part of the target user which is not shielded by the obstacle, an area of a non-wind-sensitive body part, positions of gaps on both lateral sides of the obstacle in the surrounding environment, and the like.
In step S414, it is determined whether the temperature adjustment mode of the indoor unit 10 of the air conditioner is the cooling mode, if yes, step S416 is executed, and if no, step S422 is executed.
In step S416, when there are a plurality of positions of the wind-sensitive body part of the target user, the heights of the positions of the wind-sensitive body parts are compared to obtain the maximum value.
In step S418, the air outlet direction of the indoor unit 10 of the air conditioner is adjusted to supply air toward the body part with wind sensation corresponding to the highest value.
In step S420, the air outlet speed of the indoor unit 10 of the air conditioner is adjusted to the set air outlet speed when the area of the body part without wind sensation of the target user is greater than the set area threshold value.
In step S422, it is determined whether the temperature adjustment mode of the indoor unit 10 of the air conditioner is the heating mode, if so, step S428 is executed, otherwise, step S402 is executed again.
In step S424, the air outlet direction of the indoor unit 10 of the air conditioner is adjusted to supply air toward the gaps located at the two lateral sides of the obstacle.
Fig. 5 is a schematic view of a usage scenario of the air conditioner indoor unit 10 according to an embodiment of the present invention, in which the direction of the arrow shows the air outlet direction of the air conditioner indoor unit 10.
For example, in the cooling mode, when a blocking event occurs in the surrounding environment, the air conditioner indoor unit 10 may supply air toward the wind-sensitive body parts of the target user, and the air supply direction may be toward the body part located highest among the wind-sensitive body parts.
Fig. 6 is a schematic view of a usage scenario of the air conditioner indoor unit 10 according to another embodiment of the present invention, in which the direction of the arrow shows the air outlet direction of the air conditioner indoor unit 10.
For example, in the heating mode, when a blocking event occurs in the surrounding environment and the obstacle blocks the legs and the lower portion of the target user, the air conditioner indoor unit 10 may supply air toward the gaps on both lateral sides of the obstacle. If there are gaps on both lateral sides of the obstacle, further analysis can be performed on the reflected signal of the laser detection signal, the position of the gap closest to the target user is determined, and then the air conditioner indoor unit 10 is driven to supply air to the position of the gap closest to the target user. In other alternative embodiments, if there are gaps on both lateral sides of the obstacle, the reflected signals of the laser detection signals may be further analyzed to compare the sizes of the openings of the two gaps, and then the air conditioner indoor unit 10 is driven to blow air toward the position of the gap with the larger opening.
In the air conditioner indoor unit 10 and the control method thereof according to the embodiment, the air conditioner indoor unit 10 can drive the laser detection device 200 to emit the laser detection signal to the surrounding environment, and can analyze the reflection signal of the laser detection signal, determine whether a blocking event occurs in the surrounding environment according to the analysis result, and adjust the air outlet direction and/or the air outlet speed of the air conditioner indoor unit 10 according to the running state of the air conditioner indoor unit 10 and the attribute information of the blocking event when the blocking event occurs, so that the air supply flow of the air conditioner indoor unit 10 can automatically avoid obstacles, the problem of poor wind sensation caused by the fact that part of the body part of a target user is blocked by the obstacles can be reduced or avoided, and the effect of the air conditioner indoor unit 10 in adjusting the indoor ambient air can be improved.
The air conditioner indoor unit 10 of this embodiment utilizes the laser detection device 200 to discern barrier and target user to according to the air supply scheme of the air conditioner indoor unit 10 of the adjustment of recognition result, under the prerequisite that improves recognition accuracy and identification range, can realize keeping away the accurate air supply of barrier, improved the air supply effect of air conditioner indoor unit 10 by a wide margin.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (7)
1. A control method of an air conditioner indoor unit, wherein a laser detection device is installed on the air conditioner indoor unit, and the control method comprises the following steps:
driving the laser detection device to emit a laser detection signal to the ambient environment of the indoor unit of the air conditioner;
acquiring a reflected signal of the laser detection signal;
judging whether a shielding event occurs in the surrounding environment according to the reflection signal, wherein the shielding event is an event that at least part of body parts of a target user in the surrounding environment form body parts without wind sensation due to the fact that the body parts are shielded by obstacles;
if so, acquiring the running state of the indoor unit of the air conditioner and the attribute information of the shielding event; the operating state comprises a temperature adjusting mode of the indoor unit of the air conditioner, and the attribute information comprises the position of a body part, which is not shielded by the obstacle, of the target user and is affected by wind;
adjusting the air outlet direction and/or the air outlet speed of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event; wherein
The step of judging whether the shielding event occurs in the surrounding environment according to the reflection signal comprises the following steps:
acquiring body contour information of the target user according to the reflection signal; the body contour information indicates the intensity of the reflected signal of the laser detection signal reflected by each body part of the target user;
and judging whether a shielding event occurs in the surrounding environment according to the body contour information.
2. The control method according to claim 1, wherein
The step of judging whether an occlusion event occurs in the surrounding environment according to the body contour information comprises the following steps:
judging whether the intensities of the reflected signals of the laser detection signals marked by the body contour information after being reflected by all body parts of the target user are consistent or not;
if not, determining that the shielding event occurs in the surrounding environment.
3. The control method according to claim 1, wherein
The step of adjusting the air outlet direction of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event comprises the following steps:
judging whether the temperature adjusting mode of the indoor unit of the air conditioner is a refrigerating mode or not;
if so, the air outlet direction of the indoor unit of the air conditioner is adjusted to be towards the wind-sensitive body part of the target user for supplying air.
4. The control method according to claim 3, wherein
The step of adjusting the air outlet direction of the air conditioner indoor unit to supply air towards the wind-sensitive body part of the target user comprises the following steps:
judging whether the positions of the wind-sensitive body parts of the target user are multiple or not;
if so, comparing the heights of the positions of the wind-sensitive body parts to obtain the highest value;
and adjusting the air outlet direction of the indoor unit of the air conditioner to supply air towards the body part with the wind sensation corresponding to the highest value.
5. The control method according to claim 3, wherein
In the step of obtaining the running state of the indoor unit of the air conditioner and the attribute information of the shielding event, the attribute information further comprises the area of the body part without the wind sensation of the target user; and is provided with
The step of adjusting the air outlet speed of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event comprises the following steps:
judging whether the area of the non-wind-sensing body part of the target user is larger than a set area threshold value or not;
if so, adjusting the air outlet speed of the indoor unit of the air conditioner to be the set air outlet speed.
6. The control method according to claim 3, wherein
In the step of obtaining the operating state of the indoor unit of the air conditioner and the attribute information of the shielding event, the attribute information further includes positions of gaps on two lateral sides of the obstacle in the surrounding environment; and is
The step of adjusting the air outlet direction of the air conditioner indoor unit according to the running state of the air conditioner indoor unit and the attribute information of the shielding event comprises the following steps:
judging whether the temperature adjusting mode of the indoor unit of the air conditioner is a heating mode or not;
if so, adjusting the air outlet direction of the indoor unit of the air conditioner to supply air towards the gap.
7. The utility model provides an air conditioner installs laser detection device, its characterized in that includes:
a processor and a memory, the memory having stored therein a control program for implementing the control method according to any one of claims 1-6 when executed by the processor.
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| CN202010529825.8A CN111720980B (en) | 2020-06-11 | 2020-06-11 | Air conditioner indoor unit and control method thereof |
| PCT/CN2020/130834 WO2021248843A1 (en) | 2020-06-11 | 2020-11-23 | Air conditioner indoor unit and control method therefor |
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| CN111720980B (en) * | 2020-06-11 | 2022-09-06 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit and control method thereof |
| CN112413844B (en) * | 2020-11-13 | 2022-03-18 | 佛山市顺德区美的电子科技有限公司 | Control method, device and equipment of air supply equipment and storage medium |
| CN112524772B (en) * | 2020-11-30 | 2021-12-10 | 珠海格力电器股份有限公司 | Control method and device of air conditioner, storage medium and electronic device |
| CN112665160B (en) * | 2020-12-21 | 2022-01-28 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
| CN115371226A (en) * | 2021-05-18 | 2022-11-22 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner and air conditioner |
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