Air conditioner and control method and device thereof, storage medium and computer program product

Abstract

The invention provides an air conditioner and a control method and device thereof, a storage medium and a computer program product, and the method comprises the following steps: when the air conditioner is in an on state, sending out a first sound signal with a set frequency, and receiving a first reverberation sound wave signal reflected by the sent first sound signal in a room; extracting sound field features of a room from the received first echo sound wave signal; identifying the extracted sound field features of the room by using a pre-established sound field model so as to identify the opening and closing states of doors and windows of the room; and if the opening and closing state of the door and window of the room is identified as an open state, sending out corresponding reminding information. The scheme provided by the invention can identify whether the door and the window of the room are closed so as to remind.

Description

Technical Field

[0001] The present invention relates to the field of control, and in particular to an air conditioner and a control method, device, storage medium and computer program product thereof. Background Art

[0002] The intelligent air conditioning system in the related art mainly relies on temperature sensors or manual operation to adjust the indoor temperature, but cannot effectively sense the state of the doors and windows of the room. If the doors and windows are not closed, it is easy to cause the loss of cold air or hot air, thereby reducing the energy efficiency of the air conditioner and causing energy waste. Summary of the invention

[0003] The main purpose of the present invention is to overcome the defects of the above-mentioned related technologies and to provide an air conditioner and its control method, device, storage medium and computer program product to solve the problem in the related technologies that the air conditioner cannot detect the opening status of the room doors and windows.

[0004] On one hand, the present invention provides a method for controlling an air conditioner, comprising: when the air conditioner is in an on state, emitting a first sound signal, and receiving a first echo sound wave signal reflected in the room by the emitted first sound signal; extracting the sound field characteristics of the room from the received first echo sound wave signal; using a pre-established sound field recognition model for different door and window switch states to identify the extracted sound field characteristics of the room, so as to identify the switch state of the doors and windows of the room; if the switch state of the doors and windows of the room is identified as an on state, issuing a corresponding reminder message.

[0005] Optionally, it also includes: pre-establishing a sound field recognition model for different door and window switch states, including: emitting a second sound signal under different switch states of the doors and windows in the room; receiving a second echo sound wave signal reflected in the room by the emitted second sound signal; extracting sound field features under different switch states of the doors and windows in the room from the received second echo sound wave signal; and establishing a sound field recognition model for different door and window switch states using the extracted sound field features under different switch states of the doors and windows in the room.

[0006] Optionally, it is characterized in that identifying the switch state of the doors and windows of the room as being in the open state includes: if the sound field model is used to identify that the doors and windows of the room are in the open state for a continuous preset time, and the temperature change rate of the room is less than a preset temperature change rate threshold, then confirming that the doors and windows of the room are in the open state.

[0007] Optionally, it also includes: if the switch state of the doors and windows of the room is identified as being open, determining whether to close the windows of the room; if it is determined not to close the windows of the room, adjusting the heat exchange amount and / or air supply volume of the air conditioner.

[0008] Optionally, it also includes: detecting whether there is someone in the room, and if there is no one in the room, reducing the air supply and / or operating power of the air conditioner, and / or controlling the air conditioner to enter standby mode, and / or turning off the air conditioner when it is detected that there is no one in the room for a continuous preset time.

[0009] On the other hand, the present invention provides a control device for an air conditioner, comprising: a transceiver unit, for emitting a first sound signal when the air conditioner is in an on state, and receiving a first echo sound wave signal reflected in the room by the emitted first sound signal; an extraction unit, for extracting the sound field characteristics of the room from the received first echo sound wave signal; an identification unit, for identifying the extracted sound field characteristics of the room using a pre-established sound field identification model for different door and window switch states, so as to identify the switch states of the doors and windows of the room; and a prompt unit, for issuing a corresponding reminder message if the switch states of the doors and windows of the room are identified as being on.

[0010] Optionally, it also includes: a training unit for pre-establishing a sound field recognition model for different door and window switching states, including: emitting a second sound signal under different switching states of the doors and windows in the room; receiving a second echo sound wave signal reflected in the room by the emitted second sound signal; extracting sound field features of the doors and windows in the room under different switching states from the received second echo sound wave signal; and establishing a sound field recognition model for different door and window switching states using the extracted sound field features of the doors and windows in the room under different switching states.

[0011] Optionally, the identification unit identifies that the switch state of the doors and windows of the room is in the open state, including: if the sound field model is used to identify that the doors and windows of the room are in the open state for a continuous preset time, and the temperature change rate of the room is less than a preset temperature change rate threshold, then it is confirmed that the doors and windows of the room are in the open state.

[0012] Optionally, it also includes: a determination unit, which is used to determine whether to close the windows of the room if the switch state of the doors and windows of the room is identified as an open state; and an adjustment unit, which is used to adjust the heat exchange amount and / or air supply volume of the air conditioner if the determination unit determines that the windows of the room are not to be closed.

[0013] Optionally, it also includes: a detection unit, used to detect whether there is someone in the room; a control unit, used to reduce the air supply volume and / or operating power of the air conditioner if there is no one in the room, and / or control the air conditioner to enter standby mode, and / or turn off the air conditioner when it is detected that there is no one in the room for a continuous preset time.

[0014] Another aspect of the present invention provides a storage medium having a computer program stored thereon, wherein the program implements the steps of any of the aforementioned methods when executed by a processor.

[0015] In another aspect, the present invention provides an air conditioner, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the aforementioned methods when executing the program.

[0016] In another aspect, the present invention provides an air conditioner, comprising any of the aforementioned control devices.

[0017] In yet another aspect, the present invention provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the steps of any of the aforementioned methods are implemented.

[0018] According to the technical solution of the present invention, by emitting sound signals and receiving feedback, the characteristic parameters of the sound field in the room are extracted, and the status of the doors and windows in the room are identified based on the pre-established sound field model and the extracted characteristic parameters of the sound field in the room. It is possible to identify whether the doors and windows of the room are closed so as to give reminders or perform air conditioning adjustments.

[0019] According to the technical solution of the present invention, by extracting the sound field parameters of the room, using the sound field model in combination with the rate of temperature change in the room when the air conditioner is running, the open or closed state of the doors and windows of the room can be judged, and the switch state of the doors and windows can be judged more accurately.

[0020] According to the technical solution of the present invention, the air supply volume or temperature setting is intelligently adjusted according to the detected door and window status and the presence of the user, and the user is reminded by voice to pay attention to the door and window opening status, thereby achieving intelligent adjustment and energy-saving effects.

[0021] According to the technical solution of the present invention, combined with the voice detection module, the air conditioner operating power is automatically reduced or turned off when there is no one in the room, which significantly saves energy. The user is reminded by voice to check the status of doors and windows, ensuring that the air conditioning system operates in an efficient state and adapting to the user's usage habits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 is a method schematic diagram of an embodiment of the air conditioner control method provided by the present invention;

[0024] Figure 2 A flowchart of a specific implementation method of pre-establishing a sound field model for identifying the open and closed states of doors and windows in a room is shown;

[0025] Figure 3 It is a schematic diagram of the system composition of the present invention;

[0026] Figure 4 is a method schematic diagram of a specific embodiment of the air conditioner control method provided by the present invention;

[0027] Figure 5 It is a structural block diagram of an embodiment of the air conditioner control device provided by the present invention. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] The invention provides a control method for an air conditioner.

[0031] Figure 1 It is a method schematic diagram of an embodiment of the air conditioner control method provided by the present invention.

[0032] like Figure 1 As shown, according to one embodiment of the present invention, the air conditioner control method at least includes step S110, step S120, step S130 and step S140.

[0033] Step S110, when the air conditioner is in the on state, a first sound signal is emitted, and a first echo sound wave signal reflected in the room by the emitted first sound signal is received.

[0034] Specifically, when the air conditioner is in the on state, a first sound signal is emitted through the sound field transmitting module, and a first echo sound wave signal reflected in the room by the emitted first sound signal is received through the sound field receiving module. For example, after the air conditioner is installed, the user can be prompted by voice guidance or information to collect the sound field characteristics of the room doors and windows when they are open and closed. The user opens and closes the doors and windows according to the voice guidance prompts or information prompts, and a first sound signal of a set frequency is emitted through the sound field transmitting module when the user opens and closes the doors and windows, and a first echo sound wave signal of the emitted first sound signal is received in the room by the sound field receiving module. The first sound signal can be a signal with a certain frequency, amplitude, phase and duration.

[0035] Step S120: extracting the sound field characteristics of the room from the received first echo sound wave signal.

[0036] Specifically, the extracted sound field features may include: at least one of sound pressure level (SPL), frequency response, reverberation time (RT), reverberation, signal delay and phase.

[0037] Sound pressure level (SPL): obtained by calculating the root mean square value (RMS) of the sound field signal.

[0038] Frequency response: The time domain signal is analyzed and converted into a frequency domain signal through Fast Fourier Transform (FFT).

[0039] Reverberation Time (RT): It measures the decay time of a sound field signal.

[0040] Step S130, using a pre-established sound field recognition model for different door and window switch states to recognize the extracted sound field features of the room, so as to recognize the switch state of the door and window in the room.

[0041] Specifically, the pre-established sound field recognition model for different door and window switch states is used to identify the sound field for different door and window switch states, so that the extracted sound field characteristics of the room are input into the sound field recognition model for different door and window switch states, and it can be identified whether the switch state of the doors and windows in the room is open or closed.

[0042] Figure 2 The flowchart of a specific implementation method of pre-establishing a sound field recognition model for different door and window switch states is shown. Figure 2 As shown, in a specific implementation, a sound field recognition model for different door and window switch states is pre-established, including: Step S1 to Step S4:

[0043] Step S1, sending a second sound signal under different switch states of the doors and windows of the room.

[0044] Step S2, receiving a second echo sound wave signal generated by the second sound signal being reflected in the room.

[0045] Specifically, when the air conditioner is turned on, when the doors and windows of the room are open and when the doors and windows are closed, a second sound signal is emitted through the sound field emission module, and a second echo sound wave signal reflected in the room by the emitted second sound signal is received through the sound field receiving module. The first sound signal may be a signal with a certain frequency, amplitude, phase and duration. The second sound signal has the same frequency, amplitude, phase and duration as the first sound signal.

[0046] Optionally, the switch state of the doors and windows of the room can be determined according to the time period, so that the second sound signal is emitted in different switch states of the doors and windows of the room, and the echo sound wave signal of the emitted second sound signal reflected in the room is received. For example, in general, the doors and windows of the room are open during the daytime, and most of them are closed during the nighttime.

[0047] Step S3: extracting the sound field characteristics of the doors and windows of the room in different switch states from the received second echo sound wave signal.

[0048] Specifically, the extracted sound field features may include: at least one of sound pressure level (SPL), frequency response, reverberation time (RT), reverberation, signal delay and phase.

[0049] Sound pressure level (SPL): obtained by calculating the root mean square value (RMS) of the sound field signal.

[0050] Frequency response: The time domain signal is analyzed and converted into a frequency domain signal through Fast Fourier Transform (FFT).

[0051] Reverberation Time (RT): It measures the decay time of a sound field signal.

[0052] The opening and closing status of doors and windows affects multiple characteristics of the sound field, including the following characteristics:

[0053] 1. Sound Pressure Level (SPL) Impact:

[0054] When doors and windows are open, sound can travel more freely and the sound pressure level usually decreases. When they are closed, the reflection and attenuation of sound waves increase, causing the sound pressure level to rise.

[0055] Performance: When closed, the sound inside the room will usually appear louder, while when opened, external noise may enter more easily, affecting the overall sound pressure level.

[0056] 2. Frequency Response Impact:

[0057] When doors and windows are opened, air flow and sound wave propagation paths change, causing certain frequencies to be enhanced or attenuated. For example, high-frequency sounds may be absorbed by materials such as curtains, while low-frequency sounds may be transmitted through windows.

[0058] Performance: Changes in frequency response can affect the clarity and quality of sound. When the windows are closed, the response of certain frequencies may be smoother and the sound may sound more timbre.

[0059] 3. Reverberation Time (RT) Impact:

[0060] The opening and closing of doors and windows can change the acoustic properties of a room. For example, opening a door or window may increase air flow and open space, thereby shortening the reverberation time, while closing it may increase the reverberation time.

[0061] Performance: When doors and windows are closed, the duration of sound in the room increases, causing more reverberation.

[0062] 4. Reverberation influence: The intensity and duration of reverberation will vary depending on the status of doors and windows.

[0063] When doors and windows are opened, the introduction of external noise will cause the reverberation level to decrease and the clarity of the sound to increase.

[0064] Performance: When turned on, the sound is clearer and the sound fuzziness caused by reverberation is reduced.

[0065] Step S4, using the extracted sound field features of the doors and windows of the room in different switch states, establish a sound field recognition model for different door and window switch states.

[0066] Specifically, for different switch states (open or closed) of the doors and windows in the room, the sound field characteristics in different switch states are recorded and analyzed. The sound field characteristics in each state will be different. For example, when the doors and windows are open, the reverberation characteristics and frequency response of the room may be different from when they are closed. Based on these sound field characteristics, a sound field recognition model for different door and window switch states is established for subsequent identification of the sound field characteristics in different door and window switch states. For example, the sound field characteristics of the doors and windows in the room under different switch states can be extracted to establish a neural network model for identifying the sound field of different door and window switch states. The sound field recognition model for different door and window switch states established above is used to identify the extracted sound field characteristics of the room to identify the switch state of the doors and windows in the room.

[0067] Optionally, the room sound field model can be continuously strengthened through daily testing. For example, under normal circumstances during the day, the room doors and windows are basically open, and when the air conditioner is turned on at night, the room doors and windows are mostly closed. Based on these daily test data, the sound field model is continuously optimized to improve the accuracy of the test.

[0068] Step S140: If the switch status of the door and window of the room is identified as open, a corresponding reminder message is issued.

[0069] Preferably, if the sound field model is used to identify that the doors and windows of the room are in an open state for a continuous preset time, and the temperature change rate of the room is less than a preset temperature change rate threshold, it is confirmed that the doors and windows of the room are in an open state.

[0070] Specifically, if the sound field model is used to identify that the doors and windows of the room are in an open state for a continuous preset time, it is further determined whether the temperature change rate of the room is less than a preset temperature change rate threshold. If it is determined that the temperature change rate of the room is less than the preset temperature change rate threshold, it is confirmed that the doors and windows of the room are in an open state.

[0071] When the air conditioner is on, the sound field characteristic parameters in the room are continuously monitored. If the sound field characteristics corresponding to the open state of the doors and windows are detected within the continuous T0 time, and the temperature sensor module detects that the temperature change rate of the room is slow (such as the temperature drops or rises slowly), it is confirmed that the doors and windows are in the open state. If it is confirmed that the switch state of the doors and windows in the room is open, a corresponding reminder message is issued. If the sound field characteristics corresponding to the closed state of the doors and windows are detected within the continuous T0 time, and the temperature sensor module detects that the temperature change rate of the room is fast (such as the temperature drops or rises quickly), it is confirmed that the doors and windows are closed.

[0072] The reminder information may be voice reminder information and / or text reminder information. For example, if it is confirmed that the switch state of the doors and windows in the room is open, a corresponding reminder information is sent to the user through voice, such as "Please check whether the doors and windows are open."

[0073] Preferably, the method further includes: if the switch state of the doors and windows of the room is identified as being open, determining whether to close the windows of the room; if it is determined not to close the windows of the room, adjusting the heat exchange amount and / or air supply volume of the air conditioner.

[0074] Specifically, if it is detected that the doors and windows are open, a corresponding reminder message will be issued, and the user will be asked whether to close the doors and windows. If the doors and windows of the room can be controlled, if the user chooses to close the doors and windows, the doors and windows of the room can be controlled to close. If the doors and windows are not controllable, the user can close the doors and windows of the room by himself and feedback that the doors and windows have been closed. If the user chooses not to close the doors and windows, the air supply volume or heat exchange adjustment strength of the air conditioner can be automatically increased. If the air conditioner is in cooling mode, the cooling capacity will be increased and the wind speed will be increased (i.e., the air supply volume will be increased); if the air conditioner is in heating mode, the system will increase the heating capacity and increase the wind speed (i.e., increase the air supply volume) to compensate for the cold / heat loss caused by the opening of the doors and windows.

[0075] The reminder information may specifically be voice reminder information. For example, if it is confirmed that the doors and windows are open, a reminder is sent to the user through voice: "Please check whether the doors and windows are open", and the user is asked whether to close the doors and windows. According to the user's choice, it is determined whether to further adjust the air supply volume or temperature adjustment strategy of the air conditioner. For example, the user can choose to close the doors and windows, and the doors and windows can be automatically controlled to close, or the user can manually close the doors and windows and confirm that the doors and windows are closed. If the user chooses not to close the doors and windows, the cooling or heating amount and / or the wind speed are increased to compensate for the cooling or heat loss caused by the opening of the doors and windows.

[0076] More specifically, the heat exchange amount and / or air supply volume of the air conditioner are adjusted in the cooling mode and the heating mode respectively in the following ways.

[0077] 1. Cooling mode adjustment

[0078] When the doors and windows are open: If the doors and windows are open and the air conditioner is in cooling mode, the air conditioner will increase the cooling capacity and wind speed to offset the external heat entering and the cold air escaping. At this time, the air conditioner compensates for the energy loss by increasing the cooling intensity (such as lowering the temperature and increasing the wind speed) to ensure a stable indoor temperature.

[0079] Action: Lower the set temperature of the air conditioner (for example, by 1-2°C).

[0080] Increase the wind speed (e.g., set to high).

[0081] When doors and windows are closed: If the doors and windows are closed and the air conditioner is in cooling mode, the air conditioner can maintain a lower fan speed and temperature setting to maintain a comfortable indoor environment while reducing energy consumption.

[0082] Action: Keep the air conditioning set temperature within the normal comfort range.

[0083] Set a moderate fan speed to avoid excessive energy consumption.

[0084] 2. Heating mode adjustment

[0085] When doors and windows are open:

[0086] If the doors and windows are open and the air conditioner is in heating mode, the air conditioner will automatically increase the heating amount and wind speed to compensate for the heat loss. Because when the doors and windows are open, hot air is easy to lose, the air conditioner needs to increase the heating power to maintain the room temperature.

[0087] Operation: Increase the set temperature of the air conditioner (for example, by 1-2°C).

[0088] Increase the wind speed (e.g., to high) to improve heat dissipation.

[0089] When doors and windows are closed:

[0090] If the doors and windows are closed and the air conditioner is in heating mode, the air conditioner will adjust the heating output according to the changes in room temperature to avoid excessive energy consumption.

[0091] Action: Set a lower heating temperature (e.g. to a comfortable range).

[0092] Set a moderate wind speed (e.g., low) to maintain heat distribution without overheating.

[0093] 3. Wind speed control

[0094] When doors and windows are open: When doors and windows are open, air circulation is greater and the air conditioner needs to adjust the wind speed to compensate for the impact of the external environment on the indoor temperature. The system will increase the wind speed to enhance the delivery of cold or hot air.

[0095] Operation: Adjust the fan speed to "High" mode to increase air circulation.

[0096] When doors and windows are closed: When doors and windows are closed, air circulation is reduced. The air conditioner can select a moderate wind speed to maintain a comfortable indoor temperature and avoid unnecessary energy waste.

[0097] Operation: Set the fan speed to "Medium" or "Low" to ensure comfort and energy saving.

[0098] Optionally, the method also includes: detecting whether there is someone in the room, and if there is no one in the room, reducing the air supply and / or operating power of the air conditioner, and / or controlling the air conditioner to enter standby mode, and / or turning off the air conditioner when it is detected that there is no one in the room for a continuous preset time.

[0099] For example, by detecting whether there is a human voice in the room, it is determined whether there is someone in the room. If there is no one in the room, the air supply volume and / or operating power of the air conditioner are reduced, and / or the air conditioner is controlled to enter standby mode. If it is detected that there is no one in the room for a continuous preset time, the air conditioner is turned off.

[0100] In order to clearly illustrate the technical solution of the present invention, the execution process of the air conditioner control method provided by the present invention is described below with reference to a specific embodiment.

[0101] Figure 3 It is a schematic diagram of the system composition of the present invention. Figure 3 As shown, the air conditioning system of the present invention includes: a sound field transmitting module, a sound field receiving module, a temperature sensing module, a processing unit, an air conditioning control module, a voice reminder module, a voice detection module and a room sound field model.

[0102] Sound field emission module: emits sound signals of specific frequencies to establish sound field recognition models (referred to as sound field models) for different door and window switch states.

[0103] Sound field receiving module: Receives feedback signals through the sound receiving module and extracts sound field features.

[0104] Temperature sensor module: monitors the rate of temperature change in the room in real time and determines the extent of temperature rise and fall.

[0105] Processing unit: processes and analyzes the characteristic parameters of the sound field and the rate of temperature change, and determines the switch status of the doors and windows in the room.

[0106] Air conditioning control module: automatically adjusts the air conditioning working mode according to the status of doors and windows, including cooling capacity, heating capacity, wind speed and other parameters.

[0107] Voice reminder module: Acoustic field feature collection and voice interaction guidance, reminding users to check doors and windows through voice.

[0108] Voice detection module: By detecting human voices, it determines whether there is someone in the room, further optimizes the operation mode of the air conditioner, and achieves energy saving when no one is in the room.

[0109] Room sound field model: used to store and use the sound field characteristics of the room under different door and window conditions.

[0110] Figure 4 FIG. 1 is a schematic diagram of a specific embodiment of the air conditioning control method provided by the present invention. Figure 4 As shown, a sound field recognition model (referred to as sound field model) for different door and window switch states in the room is established, and room sound field monitoring and temperature change monitoring are performed. The door and window states are judged based on the room sound field characteristics and temperature changes. If the door and window are judged to be open, a voice reminder is given and the user responds. If the user confirms that the door and window will not be closed, the air conditioner is adjusted. Whether there is anyone in the room is detected by voice. If no one is there, the air conditioner is energy-saving controlled.

[0111] The invention also provides a control device for an air conditioner.

[0112] Figure 5FIG. 1 is a structural block diagram of an embodiment of the air conditioner control device provided by the present invention. Figure 5 As shown, the control device 100 includes: a transceiver unit 110 , an extracting unit 120 , a recognition unit 130 and a prompting unit 140 .

[0113] The transceiver unit 110 is used to send out a first sound signal when the air conditioner is in the on state, and receive a first echo sound wave signal reflected in the room by the sent out first sound signal.

[0114] Specifically, when the air conditioner is in the on state, a first sound signal of a set frequency is emitted through the sound field transmitting module, and a first echo sound wave signal reflected in the room by the emitted first sound signal is received through the sound field receiving module. For example, after the air conditioner is installed, the user can be prompted by voice guidance or information to collect the sound field characteristics of the room doors and windows when they are open and closed. The user opens and closes the doors and windows according to the voice guidance prompts or information prompts, and the first sound signal of a set frequency is emitted by the sound field transmitting module when the user opens and closes the doors and windows, and the first echo sound wave signal reflected in the room by the emitted first sound signal is received by the sound field receiving module. The first sound signal can be a signal with a certain frequency, amplitude, phase and duration.

[0115] The extraction unit 120 is configured to extract the sound field characteristics of the room from the received first echo sound wave signal.

[0116] Specifically, the extracted sound field features may include: at least one of sound pressure level (SPL), frequency response, reverberation time (RT), reverberation, signal delay and phase.

[0117] Sound pressure level (SPL): obtained by calculating the root mean square value (RMS) of the sound field signal.

[0118] Frequency response: The time domain signal is analyzed and converted into a frequency domain signal through Fast Fourier Transform (FFT).

[0119] Reverberation Time (RT): It measures the decay time of a sound field signal.

[0120] The recognition unit 130 is used to recognize the extracted sound field features of the room by using the pre-established sound field recognition models of different door and window switch states, so as to recognize the switch states of the doors and windows of the room.

[0121] Optionally, the device 100 further includes a training unit (not shown) for pre-establishing a sound field recognition model for different door and window switch states. Specifically, the pre-established sound field recognition model for different door and window switch states is used to recognize the sound field for different door and window switch states, so that the extracted sound field features of the room are input into the sound field recognition model for different door and window switch states, and it is possible to recognize whether the switch state of the door and window in the room is an open state or a closed state.

[0122] Figure 2 The flowchart of a specific implementation method of pre-establishing a sound field model for identifying the open and closed states of doors and windows in a room is shown. Figure 2 As shown, in a specific implementation, a sound field recognition model for different door and window switch states is pre-established, including: Step S1 to Step S4:

[0123] Step S1, sending a second sound signal of a set frequency under different switch states of the doors and windows of the room.

[0124] Step S2, receiving a second echo sound wave signal generated by the second sound signal being reflected in the room.

[0125] Specifically, when the air conditioner is turned on, when the doors and windows of the room are open and when the doors and windows are closed, a second sound signal is emitted through the sound field emission module, and a second echo sound wave signal reflected in the room by the emitted second sound signal is received through the sound field receiving module. The first sound signal may be a signal with a certain frequency, amplitude, phase and duration. The second sound signal has the same frequency, amplitude, phase and duration as the first sound signal.

[0126] Optionally, the switch state of the doors and windows of the room can be determined according to the time period, so that the second sound signal is emitted in different switch states of the doors and windows of the room, and the echo sound wave signal of the emitted second sound signal reflected in the room is received. For example, in general, the doors and windows of the room are open during the daytime, and most of them are closed during the nighttime.

[0127] Step S3: extracting the sound field characteristics of the doors and windows of the room in different switch states from the received second echo sound wave signal.

[0128] Specifically, the extracted sound field features may include: at least one of sound pressure level (SPL), frequency response, reverberation time (RT), reverberation, signal delay and phase.

[0129] Sound pressure level (SPL): obtained by calculating the root mean square value (RMS) of the sound field signal.

[0130] Frequency response: The time domain signal is analyzed and converted into a frequency domain signal through Fast Fourier Transform (FFT).

[0131] Reverberation Time (RT): It measures the decay time of a sound field signal.

[0132] The opening and closing status of doors and windows affects multiple characteristics of the sound field, including the following characteristics:

[0133] 1. Sound Pressure Level (SPL) Impact:

[0134] When doors and windows are open, sound can travel more freely and the sound pressure level usually decreases. When they are closed, the reflection and attenuation of sound waves increase, causing the sound pressure level to rise.

[0135] Performance: When closed, the sound inside the room will usually appear louder, while when opened, external noise may enter more easily, affecting the overall sound pressure level.

[0136] 2. Frequency Response Impact:

[0137] When doors and windows are opened, air flow and sound wave propagation paths change, causing certain frequencies to be enhanced or attenuated. For example, high-frequency sounds may be absorbed by materials such as curtains, while low-frequency sounds may be transmitted through windows.

[0138] Performance: Changes in frequency response can affect the clarity and quality of sound. When the windows are closed, the response of certain frequencies may be smoother and the sound may sound more timbre.

[0139] 3. Reverberation Time (RT) Impact:

[0140] The opening and closing of doors and windows can change the acoustic properties of a room. For example, opening a door or window may increase air flow and open space, thereby shortening the reverberation time, while closing it may increase the reverberation time.

[0141] Performance: When doors and windows are closed, the duration of sound in the room increases, causing more reverberation.

[0142] 4. Reverberation influence: The intensity and duration of reverberation will vary depending on the status of doors and windows.

[0143] When doors and windows are opened, the introduction of external noise will cause the reverberation level to decrease and the clarity of the sound to increase.

[0144] Performance: When turned on, the sound is clearer and the sound fuzziness caused by reverberation is reduced.

[0145] Step S4, using the extracted sound field features of the doors and windows of the room in different switch states, establish a sound field recognition model for different door and window switch states.

[0146] Specifically, for different switch states (open or closed) of the doors and windows in the room, the sound field characteristics in different switch states are recorded and analyzed. The sound field characteristics in each state will be different. For example, when the doors and windows are open, the reverberation characteristics and frequency response of the room may be different from when they are closed. Based on these sound field characteristics, a sound field recognition model for different door and window switch states is established for subsequent identification of the sound field characteristics in different door and window switch states. For example, the sound field characteristics of the doors and windows in the room under different switch states can be extracted to establish a neural network model for identifying the sound field of different door and window switch states. The sound field recognition model for different door and window switch states established above is used to identify the extracted sound field characteristics of the room to identify the switch state of the doors and windows in the room.

[0147] Optionally, the room sound field model can be continuously strengthened through daily testing. For example, under normal circumstances during the day, the room doors and windows are basically open, and when the air conditioner is turned on at night, the room doors and windows are mostly closed. Based on these daily test data, the sound field model is continuously optimized to improve the accuracy of the test.

[0148] The prompt unit 140 is used to issue a corresponding reminder message if it is identified that the switch state of the door or window of the room is open.

[0149] Preferably, if the sound field model is used to identify that the doors and windows of the room are in an open state for a continuous preset time, and the temperature change rate of the room is less than a preset temperature change rate threshold, it is confirmed that the doors and windows of the room are in an open state.

[0150] Specifically, if the sound field model is used to identify that the doors and windows of the room are in an open state for a continuous preset time, it is further determined whether the temperature change rate of the room is less than a preset temperature change rate threshold. If it is determined that the temperature change rate of the room is less than the preset temperature change rate threshold, it is confirmed that the doors and windows of the room are in an open state.

[0151] When the air conditioner is on, the sound field characteristic parameters in the room are continuously monitored. If the sound field characteristics corresponding to the open state of the doors and windows are detected within the continuous T0 time, and the temperature sensor module detects that the temperature change rate of the room is slow (such as the temperature drops or rises slowly), it is confirmed that the doors and windows are in the open state. If it is confirmed that the switch state of the doors and windows in the room is open, a corresponding reminder message is issued. If the sound field characteristics corresponding to the closed state of the doors and windows are detected within the continuous T0 time, and the temperature sensor module detects that the temperature change rate of the room is fast (such as the temperature drops or rises quickly), it is confirmed that the doors and windows are closed.

[0152] The reminder information may be voice reminder information and / or text reminder information. For example, if it is confirmed that the switch state of the doors and windows in the room is open, a corresponding reminder information is sent to the user through voice, such as "Please check whether the doors and windows are open."

[0153] Preferably, the device 100 further comprises a determining unit and an adjusting unit (not shown).

[0154] A determination unit is used to determine whether to close the windows in the room if the switch state of the doors and windows in the room is identified as an open state; an adjustment unit is used to adjust the heat exchange amount and / or air supply volume of the air conditioner if the determination unit determines that the windows in the room are not closed.

[0155] Specifically, if it is detected that the doors and windows are open, a corresponding reminder message will be issued, and the user will be asked whether to close the doors and windows. If the doors and windows of the room can be controlled, if the user chooses to close the doors and windows, the doors and windows of the room can be controlled to close. If the doors and windows are not controllable, the user can close the doors and windows of the room by himself and feedback that the doors and windows have been closed. If the user chooses not to close the doors and windows, the air supply volume or heat exchange adjustment strength of the air conditioner can be automatically increased. If the air conditioner is in cooling mode, the cooling capacity will be increased and the wind speed will be increased (i.e., the air supply volume will be increased); if the air conditioner is in heating mode, the system will increase the heating capacity and increase the wind speed (i.e., increase the air supply volume) to compensate for the cold / heat loss caused by the opening of the doors and windows.

[0156] The reminder information may specifically be a voice reminder information. For example, if it is confirmed that the doors and windows are open, a reminder is sent to the user through voice: "Please check whether the doors and windows are open". The user is asked whether to close the doors and windows. According to the user's choice, it is determined whether to further adjust the air supply volume or temperature adjustment strategy of the air conditioner. For example, the user can choose to close the doors and windows, and the doors and windows can be automatically controlled to close, or the user can manually close the doors and windows and confirm that the doors and windows are closed. If the user chooses not to close the doors and windows, the cooling or heating amount and / or the wind speed are increased to compensate for the cooling or heat loss caused by the opening of the doors and windows.

[0157] More specifically, the heat exchange amount and / or air supply volume of the air conditioner are adjusted in the cooling mode and the heating mode respectively in the following ways.

[0158] 1. Cooling mode adjustment

[0159] When the doors and windows are open: If the doors and windows are open and the air conditioner is in cooling mode, the air conditioner will increase the cooling capacity and wind speed to offset the external heat entering and the cold air escaping. At this time, the air conditioner compensates for the energy loss by increasing the cooling intensity (such as lowering the temperature and increasing the wind speed) to ensure a stable indoor temperature.

[0160] Action: Lower the set temperature of the air conditioner (for example, by 1-2°C).

[0161] Increase the wind speed (e.g., set to high).

[0162] When doors and windows are closed: If the doors and windows are closed and the air conditioner is in cooling mode, the air conditioner can maintain a lower fan speed and temperature setting to maintain a comfortable indoor environment while reducing energy consumption.

[0163] Action: Keep the air conditioning set temperature within the normal comfort range.

[0164] Set a moderate fan speed to avoid excessive energy consumption.

[0165] 2. Heating mode adjustment

[0166] When doors and windows are open:

[0167] If the doors and windows are open and the air conditioner is in heating mode, the air conditioner will automatically increase the heating amount and wind speed to compensate for the heat loss. Because when the doors and windows are open, hot air is easy to lose, the air conditioner needs to increase the heating power to maintain the room temperature.

[0168] Operation: Increase the set temperature of the air conditioner (for example, by 1-2°C).

[0169] Increase the wind speed (e.g., to high) to improve heat dissipation.

[0170] When doors and windows are closed:

[0171] If the doors and windows are closed and the air conditioner is in heating mode, the air conditioner will adjust the heating output according to the changes in room temperature to avoid excessive energy consumption.

[0172] Action: Set a lower heating temperature (e.g. to a comfortable range).

[0173] Set a moderate wind speed (e.g., low) to maintain heat distribution without overheating.

[0174] 3. Wind speed control

[0175] When doors and windows are open: When doors and windows are open, air circulation is greater and the air conditioner needs to adjust the wind speed to compensate for the impact of the external environment on the indoor temperature. The system will increase the wind speed to enhance the delivery of cold or hot air.

[0176] Operation: Adjust the fan speed to "High" mode to increase air circulation.

[0177] When doors and windows are closed: When doors and windows are closed, air circulation is reduced. The air conditioner can select a moderate wind speed to maintain a comfortable indoor temperature and avoid unnecessary energy waste.

[0178] Operation: Set the fan speed to "Medium" or "Low" to ensure comfort and energy saving.

[0179] Optionally, the device 100 may further include: a detection unit and a control unit (not shown).

[0180] The detection unit is used to detect whether there is anyone in the room; the control unit is used to reduce the air supply volume and / or operating power of the air conditioner if there is no one in the room, and / or control the air conditioner to enter standby mode, and / or turn off the air conditioner when it is detected that there is no one in the room for a continuous preset time.

[0181] For example, by detecting whether there is a human voice in the room, it is determined whether there is someone in the room. If there is no one in the room, the air supply volume and / or operating power of the air conditioner are reduced, and / or the air conditioner is controlled to enter standby mode. If it is detected that there is no one in the room for a continuous preset time, the air conditioner is turned off.

[0182] The present invention also provides a storage medium corresponding to the air conditioner control method, on which a computer program is stored, and when the computer program is executed by a processor, the steps of any of the aforementioned methods are implemented.

[0183] The present invention also provides an air conditioner corresponding to the air conditioner control method, comprising a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the aforementioned methods when executing the computer program.

[0184] The present invention also provides an air conditioner corresponding to the control device of the air conditioner, comprising any of the control devices of the air conditioner described above.

[0185] The present invention also provides a computer program product corresponding to the air conditioner control method, comprising a computer program, and when the computer program is executed by a processor, the steps of any of the aforementioned methods are implemented.

[0186] Accordingly, the solution provided by the present invention intelligently adjusts the air supply volume or temperature setting according to the detected door and window status and the presence of the user, and reminds the user of the door and window opening status through voice, thereby achieving intelligent adjustment and energy-saving effects.

[0187] The technical solution provided by the present invention, combined with a voice detection module, automatically reduces the operating power of the air conditioner or turns off the air conditioner when no one is in the room, significantly saving energy. It reminds the user to check the status of doors and windows through voice, ensures that the air conditioning system operates in an efficient state, and adapts to the user's usage habits.

[0188] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored as one or more instructions or codes on a computer-readable medium or transmitted via a computer-readable medium. Other examples and implementations are within the scope and spirit of the present invention and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hard wiring, or a combination of any of these. In addition, each functional unit may be integrated into a processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit.

[0189] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0190] The units described as separate components may or may not be physically separated, and the components of the control device may or may not be physical units, that is, they may be located in one place or distributed in multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0191] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0192] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A method for controlling an air conditioner, characterized in that: include: When the air conditioner is in the on state, a first sound signal is emitted, and a first echo sound wave signal reflected in the room by the emitted first sound signal is received; Extracting the sound field characteristics of the room from the received first echo sound wave signal; The extracted sound field features of the room are recognized by using the pre-established sound field recognition model of different door and window switch states, so as to recognize the switch states of the doors and windows in the room; If the switch status of the door and window in the room is identified as open, a corresponding reminder message will be issued.

2. The method according to claim 1, characterized in that Also includes: The sound field recognition model for different door and window switch states is pre-established, including: A second sound signal is emitted in different switch states of the doors and windows of the room; receiving a second echo sound wave signal reflected in the room by the second sound signal; Extracting the sound field characteristics of the room doors and windows in different switch states from the received second echo sound wave signal; The sound field recognition model of different door and window switch states is established by using the extracted sound field characteristics of the room's doors and windows in different switch states.

3. The method according to claim 1 or 2, characterized in that: Identify the switch status of the doors and windows in the room as open, including: If the sound field model is used to identify that the doors and windows of the room are open for a continuous preset time, and the temperature change rate of the room is less than a preset temperature change rate threshold, it is confirmed that the doors and windows of the room are open.

4. The method according to claim 1 or 2, characterized in that: Also includes: If the switch state of the door and window of the room is identified as open, determine whether to close the window of the room; If it is determined not to close the windows of the room, the heat exchange amount and / or air supply volume of the air conditioner are adjusted.

5. The method according to claim 1 or 2, characterized in that: Also includes: Detect whether there is anyone in the room. If no one is in the room, reduce the air supply and / or operating power of the air conditioner, and / or control the air conditioner to enter standby mode, and / or turn off the air conditioner when it is detected that no one is in the room for a continuous preset time.

6. A control device for an air conditioner, characterized in that: include: a transceiver unit, configured to send out a first sound signal when the air conditioner is turned on, and receive a first echo sound wave signal reflected in the room by the first sound signal; An extraction unit, configured to extract the sound field characteristics of the room from the received first echo sound wave signal; The recognition unit is used to recognize the extracted sound field features of the room by using the pre-established sound field recognition models of different door and window switch states, so as to recognize the switch states of the doors and windows in the room; The prompt unit is used to send out corresponding reminder information if the switch state of the door and window of the room is identified as open.

7. The device according to claim 6, characterized in that Also includes: The training unit is used to pre-establish the sound field recognition model for different door and window switch states, including: In different opening and closing states of doors and windows in the room, a second sound signal of a set frequency is emitted; receiving a second echo sound wave signal reflected in the room by the second sound signal; Extracting the sound field characteristics of the room doors and windows in different switch states from the received second echo sound wave signal; The sound field recognition model of different door and window switch states is established by using the extracted sound field characteristics of the room's doors and windows in different switch states.

8. A storage medium, characterized in that: A computer program is stored thereon, and when the program is executed by a processor, the steps of any method described in claims 1-5 are implemented.

9. An air conditioner, characterized in that: The method comprises a processor, a memory and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any method described in claims 1-5 when executing the program, or comprises a control device described in any one of claims 6-7.

10. A computer program product, characterized in that The invention comprises a computer program, which implements the steps of any one of the methods of claims 1 to 5 when executed by a processor.

Images