Central air conditioner three-dimensional air supply outlet control system based on Internet of Things

Abstract

The central air conditioner three-dimensional air supply outlet control system based on the Internet of Things comprises an air outlet and a control mechanism, and microphones are installed on the periphery of the air outlet in an array mode; the control mechanism comprises an information processing module and a language processing module; the air outlet is connected with the information processing module through electric signals, the language processing module is connected with the microphones through electric signals, and the language processing module is connected with the information processing module through electric signals. The microphones are installed on the periphery of the air outlet in an array mode, the specific position of the sound source is obtained through calculation on the basis of the sound signals received by the microphones, the information processing module judges the air outlet closest to a user according to the specific position of the sound source, and the information processing module sends an instruction to the air outlet closest to the user. Therefore, the user does not need to walk back and forth, and the method is more convenient compared with the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of central air conditioners, and in particular to a central air conditioner three-dimensional air outlet control system based on the Internet of Things. Background Art

[0002] Entering the 21st century, with people's increasing attention to environmental protection and energy conservation, and the rapid development of technologies such as the Internet of Things, big data, and artificial intelligence, central air-conditioning technology is moving towards a green, intelligent, and integrated direction.

[0003] In the prior art, Publication No.: CN205957398U discloses an intelligent air conditioner, including: a housing, an air supply port, two air inlets and an air inlet are formed on the housing, a through-air duct is formed on the housing and / or inside the housing, one end of the through-air duct is connected to the air supply port, and the other end is connected to the air inlet, two air outlets are formed in the through-air duct, a fan is formed between each air outlet and an air inlet, and the air outlet direction of the fan is toward the corresponding air outlet, the air conditioner includes a human position detection module and a control module, the human position detection module is used to detect the distance signal between the human body and the air conditioner, and transmit the distance signal to the control module, and the control module outputs a control signal to control the speed of the fan. The utility model air conditioner can adjust the speed of the fan according to the position of the human body, output a suitable wind speed, and improve the comfort of the user.

[0004] Based on the above disclosed prior art content, a human position monitoring module is used in the prior art to detect the distance between the human body and the air conditioner, so as to adjust the fan speed according to the position of the human body and output a suitable wind speed.

[0005] However, before the human position monitoring module in the above-mentioned prior art is used, the air conditioner needs to be turned on before the human position monitoring module can start working, and the existing central air conditioner is usually installed in multiple rooms. When the user returns home and does not want to turn on the central air conditioner as a whole, but only wants to turn on the air outlet in the room where the user is, the existing central air conditioner air outlet control system requires the user to reach the location of the control panel and use the control panel to open the air outlet in the room where he wants to rest. The existing technology cannot achieve the effect of controlling the air outlet switch, and the user needs to walk back and forth, which is not convenient to use.

[0006] Therefore, there is an urgent need for a central air-conditioning three-dimensional air outlet control system based on the Internet of Things to solve the above problems. Summary of the invention

[0007] The purpose of the present invention is to provide a central air-conditioning three-dimensional air outlet control system based on the Internet of Things to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a central air-conditioning three-dimensional air supply outlet control system based on the Internet of Things, comprising an air outlet and a control mechanism, wherein microphones are installed in an array around the air outlet; the control mechanism comprises an information processing module and a language processing module; the air outlet is connected to the information processing module via an electrical signal, the language processing module is connected to a plurality of the microphones via an electrical signal, and the language processing module is connected to the information processing module via an electrical signal.

[0009] Preferably, pressure sensors are installed around the air outlet, and the pressure sensors are connected to the information processing module via electrical signals.

[0010] Preferably, the control mechanism further includes a human-computer interaction interface, and the human-computer interaction interface is connected to the information processing module via an electrical signal.

[0011] Preferably, the method comprises the following steps:

[0012] Step S1: a plurality of microphones receive a sound signal emitted by a user;

[0013] Step S2: the voice processing module processes the voice signal and converts it into text information;

[0014] Step S3: the information processing module identifies the text information and matches it with the instruction content stored in the information processing module;

[0015] Step S4: After the information processing module completes the matching of the instruction content, it calculates the air outlet closest to the user through the sound signals collected by the plurality of microphones, and issues an execution command of the instruction content to the air outlet closest to the user.

[0016] Preferably, calculating the air outlet closest to the user through the sound signals collected by the plurality of microphones comprises the following steps:

[0017] Step S41: grouping any two of the microphones into a group, calculating the reception time difference between the microphones in each group, and obtaining a group of time arrival difference data;

[0018] Step S42: Calculate the distance between the microphone and the sound source based on the time arrival difference data between the microphones and taking the speed of sound as 343 m / s;

[0019] Step S43: Establish a coordinate axis based on the positional relationship of the entire array of the microphones, take the position of any one of the microphones as the basic anchor point, set the coordinates of the sound source as (x, y), and the coordinates of each microphone as (x i ,Y i), the value of i is the number of microphones in the microphone array, and taking the distance difference between the microphone of the basic anchor point numbered 1 and any of the microphones numbered 2 as an example, the hyperbola equation is:

[0020]

[0021] Step S44: establishing the above hyperbolic equation between each of the microphones and the basic anchor point, thereby obtaining a set of hyperbolic equations;

[0022] Step S45: using Chan's Method to solve the obtained hyperbolic equations, the location of the sound source is the intersection of the set of curves;

[0023] Step S46: obtaining the air outlet closest to the user according to the sound source position.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention installs microphones in an array around the air outlet, and obtains the specific position of the sound source through calculation based on the sound signals received by the microphones. The information processing module determines the air outlet closest to the user according to the specific position of the sound source, and converts the user's voice information into instructions through the voice processing module and transmits them to the information processing module. The information processing module sends instructions to the air outlet closest to the user to complete the user's voice instructions, so that the user does not need to walk back and forth to start the air outlet of the central air conditioner, which is more convenient than the existing technology.

[0026] The present invention senses the change of airflow or air pressure through a pressure sensor, determines the start and stop of the indoor unit, and adjusts the size of the air outlet according to the air volume, and closes the air outlet when the indoor unit of the air conditioner stops running, so that dust will not accumulate in the indoor unit of the air conditioner through the open air outlet, and the indoor unit of the air conditioner is cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the PCB circuit structure used in the control system of the present invention;

[0028] Figure 2 This is a physical diagram of the PCB circuit board structure used in the control system of the present invention. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0030] See also Figure 1 to Figure 2 An embodiment of the present invention is: a central air-conditioning three-dimensional air outlet control system based on the Internet of Things, including an air outlet and a control mechanism, wherein microphones are installed in an array around the air outlet; the control mechanism includes an information processing module and a language processing module; the air outlet and the information processing module are connected through electrical signals, the language processing module and a plurality of microphones are connected through electrical signals, and the language processing module and the information processing module are connected through electrical signals.

[0031] Specifically, pressure sensors are installed around the air outlet, and the pressure sensors are connected to the information processing module through electrical signals.

[0032] The function of the pressure sensor is to sense the change in the airflow or air pressure at the air outlet, that is, to determine whether the indoor unit at the air outlet is started or stopped, adjust the size of the air outlet according to the change in the airflow or air pressure at the air outlet, and close the air outlet when the indoor unit of the central air conditioner stops running.

[0033] The pressure sensor determines the current working status of the central air-conditioning indoor unit through the change of air flow or air pressure at the air outlet, and uploads the information to the information processing module. The information processing module compares the working status of the central air-conditioning indoor unit determined by the pressure sensor with the actual working status of the central air-conditioning indoor unit. If the two are different, the information processing module will make corresponding processing to ensure that the working status of the central air-conditioning indoor unit is the same as the working status of the central air-conditioning indoor unit determined by the pressure sensor through the change of air flow or air pressure at the air outlet.

[0034] This method can ensure that the air outlet is consistent with the working state of the central air conditioner, avoiding the problem that the central air conditioner is turned on but the air outlet is closed, or the air outlet is still open when the central air conditioner is turned off. At the same time, the setting of the pressure sensor makes the air outlet in the non-operating state closed, so that dust will not accumulate in the air conditioner through the open air outlet.

[0035] Specifically, the control mechanism also includes a human-computer interaction interface, and the human-computer interaction interface is connected to the information processing module via electrical signals.

[0036] The default voice commands in the information processing module allow users to interact with the information processing module, or they can enter customized voice commands in the human-computer interaction interface. When the voice enters the information processing module, it will first be recognized by the ASR model and converted into text, and then matched with the previously entered custom command content. In this way, custom voice commands can be used to replace the default commands to interact with the information processing module.

[0037] Specifically, the steps include:

[0038] Step S1: a plurality of microphones receive a sound signal emitted by a user;

[0039] Microphones are located in every corner of the vent to fully capture voice.

[0040] Step S2: The voice processing module processes the voice signal and converts it into text information;

[0041] The speech signal will be recognized into text through the ASR automatic speech recognition model.

[0042] Step S3: the information processing module identifies the text information and matches it with the instruction content stored in the information processing module;

[0043] Step S4: After the information processing module completes the matching of the instruction content, it calculates the air outlet closest to the user through the sound signals collected by a plurality of microphones, and issues an execution command of the instruction content to the air outlet closest to the user.

[0044] Specifically, calculating the air outlet closest to the user through the sound signals collected by a plurality of microphones includes the following steps:

[0045] Step S41: group any two microphones into a group, calculate the reception time difference between each group of microphones, and obtain a group of time arrival difference data;

[0046] Step S42: Calculate the distance between the microphone and the sound source based on the time arrival difference data between the microphones and the speed of sound as 343 m / s;

[0047] Step S43: Establish a coordinate axis based on the positional relationship of the entire array of microphones, take the position of any microphone as the basic anchor point, set the coordinates of the sound source as (x, y), and the coordinates of each microphone as (x i ,Y i ), i is the number of microphones in the microphone array. Taking the distance difference between the basic anchor microphone numbered 1 and the arbitrary microphone numbered 2 as an example, the hyperbola equation is:

[0048]

[0049] Step S44: establishing the above hyperbolic equation between each microphone and the basic anchor point, thereby obtaining a set of hyperbolic equations;

[0050] Step S45: using Chan's Method to solve the obtained hyperbolic equations, the location of the sound source is the intersection of the set of curves;

[0051] Step S46: Obtain the air outlet closest to the user according to the location of the sound source.

[0052] Working principle:

[0053] The user returns home, enters the room and closes the door. The user speaks the voice signal "turn on the air conditioner" in the room. After the microphones installed in the array around the air outlet receive the voice signal from the user, they will pass the voice signal to the language processing module. The voice processing module uses the ASR automatic speech recognition model to recognize the sound signal into text. The information processing module recognizes the processed text information and matches it with the instruction content stored in the information processing module. After the information processing module completes the matching of the instruction content, it calculates the air outlet closest to the user through the sound signal collected by the microphone, and issues an execution command for the instruction content to the air outlet closest to the user, and the air outlet executes the instruction content.

[0054] The air outlet control system enables the user to avoid having to move back and forth, which is more convenient than the existing technology.

[0055] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A central air-conditioning three-dimensional air outlet control system based on the Internet of Things, characterized in that: It includes air outlets and a control mechanism, wherein microphones are installed in an array around a plurality of the air outlets; the control mechanism includes an information processing module and a language processing module; the air outlets are connected to the information processing module via electrical signals, the language processing module is connected to the plurality of microphones via electrical signals, and the language processing module is connected to the information processing module via electrical signals.

2. According to the Internet of Things-based central air-conditioning three-dimensional air outlet control system of claim 1, it is characterized by: Pressure sensors are also installed around the air outlet, and the pressure sensors are connected to the information processing module through electrical signals.

3. According to the Internet of Things-based central air-conditioning three-dimensional air outlet control system of claim 1, it is characterized by: The control mechanism also includes a human-computer interaction interface, and the human-computer interaction interface is connected to the information processing module via an electrical signal.

4. A voice control method for a central air-conditioning three-dimensional air outlet control system based on the Internet of Things according to claims 1-3, characterized in that: The steps include: Step S1: a plurality of microphones receive a sound signal emitted by a user; Step S2: the voice processing module processes the voice signal and converts it into text information; Step S3: the information processing module identifies the text information and matches it with the instruction content stored in the information processing module; Step S4: After the information processing module completes the matching of the instruction content, it calculates the air outlet closest to the user through the sound signals collected by the plurality of microphones, and issues an execution command of the instruction content to the air outlet closest to the user.

5. According to the Internet of Things-based central air-conditioning three-dimensional air outlet control system of claim 4, it is characterized by: Calculating the air outlet closest to the user through the sound signals collected by the plurality of microphones comprises the following steps: Step S41: grouping any two of the microphones into a group, calculating the reception time difference between the microphones in each group, and obtaining a group of time arrival difference data; Step S42: Calculate the distance between the microphone and the sound source based on the time arrival difference data between the microphones and taking the speed of sound as 343 m / s; Step S43: Establish a coordinate axis based on the positional relationship of the entire array of the microphones, take the position of any one of the microphones as the basic anchor point, set the coordinates of the sound source as (x, y), and the coordinates of each microphone as (x i ,Y i ), the value of i is the number of microphones in the microphone array, and taking the distance difference between the microphone of the basic anchor point numbered 1 and any of the microphones numbered 2 as an example, the hyperbola equation is: Step S44: establishing the above hyperbolic equation between each of the microphones and the basic anchor point, thereby obtaining a set of hyperbolic equations; Step S45: using Chan's Method to solve the obtained hyperbolic equations, the location of the sound source is the intersection of the set of curves; Step S46: obtaining the air outlet closest to the user according to the sound source position.

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