Distributed voice control system and method

Through the distributed voice control system, the voice control module, cloud processing module and judgment word database are used to solve the problem of limited sound pickup range of smart home appliances, and the function of users to control home appliances through voice in different locations is realized, improving the user experience.

CN120089136APending Publication Date: 2025-06-03CHANGHONG MEILING CO LTD
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Patent Information

Application Number
CN202510231367.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-06-03

AI Technical Summary

Technical Problem

The sound pickup range of smart home appliances or smart speakers is limited, which makes it impossible to accurately identify wake-up words or command words from a certain distance, reducing the user's experience of using the voice interaction function of home appliances.

Method used

A distributed voice control system is designed to realize the acquisition, processing and remote transmission of voice commands through voice control module, cloud processing module and judgment word database. The voice control module obtains voice commands in the home appliance device and sends unmatched command words to the cloud processing module. The cloud processing module matches the command words with the judgment words of the home appliance device based on the command words, and sends the matching command words to the target appliance device to achieve remote control of the target device.

Benefits of technology

Through the distributed voice control system, each smart home appliance product with voice interaction can be used as an interactive terminal. Users can control another home appliance product located in another location by voice interaction of one home appliance product, thereby more flexibly operating smart home appliance products and improving user experience.

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Abstract

The invention provides a distributed voice control system and method, and the system comprises a cloud processing module which is in communication connection with a voice control module; the voice control module comprises: a pickup unit configured to obtain a voice instruction; the voice processing unit is configured to obtain a command word according to the voice instruction; if the command word is not matched with the judgment word of the first household appliance, sending the command word to a cloud processing module; the cloud processing module is configured to judge whether the command word is matched with a judgment word of the second household appliance according to the command word, and if yes, the command word is sent to the second household appliance; the second household appliance executes an action corresponding to the command word according to the command word; and the second household appliance is a household appliance which does not acquire the voice instruction, so that the problem that awakening cannot be performed or awakening words or command words cannot be accurately recognized when a certain distance is exceeded due to the fact that the pickup range of an existing intelligent household appliance product or an intelligent sound box is limited is solved.
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Description

Technical Field

[0001] The present application relates to the technical field of smart home, and particularly to a distributed voice control system and method. Background Art

[0002] Voice control technology has been widely applied in smart homes. Different home appliances have different wake-up words and command entries. After a home appliance is awakened by a wake-up word, it executes different functions according to the received command word. Controlling home appliances through voice command interaction can greatly improve the convenience of using home appliances.

[0003] In order for home appliances to accurately recognize voice commands, different home appliances have different wake-up words or command words. Currently, there are mainly two voice interaction control methods, namely, the home appliance itself directly realizes interaction control, or a smart speaker or the like is used as an interaction terminal. Through interaction with a smart speaker or the like, the smart speaker controls the home appliance.

[0004] However, no matter which interaction control method is used, due to the limited sound pickup range of home appliances or smart speakers, the situation of being unable to wake up or accurately recognize the wake-up word or command word will occur beyond a certain distance. For example, when a user is in the bedroom and hopes to control home appliances in the living room or kitchen, due to the distance limitation, the target home appliances cannot be directly controlled by voice, and the user needs to reach within the voice recognition range of the target home appliances to perform voice interaction control, resulting in the user's reduced usage experience of the voice interaction function of home appliances. Summary of the Invention

[0005] The present application provides a distributed voice control system and method to solve the technical problem that the sound pickup range of existing smart home appliances or smart speakers is limited, and the situation of being unable to wake up or accurately recognize the wake-up word or command word will occur beyond a certain distance.

[0006] The first aspect of the present application provides a distributed voice control system, which is applied to home appliances. The home appliances are configured with a voice control module, and the voice control module is configured to obtain a voice command and control the home appliances to execute an action corresponding to the voice command according to the voice command; the home appliances are further configured with a determination word database for storing determination words, and include:

[0007] A cloud processing module, which is communicatively connected to the voice control module through a WIFI module;

[0008] The voice control module includes:

[0009] A sound pickup unit, which is configured to obtain a voice command;

[0010] A voice processing unit, which is configured to: obtain a command word according to the voice instruction; if the command word does not match the determination word of the first household appliance, send the command word to the cloud processing module; the first household appliance is the household appliance that has obtained the voice instruction;

[0011] The cloud processing module is configured to: determine whether the command word matches the determination word of the second household appliance according to the command word, and if so, send the command word to the second household appliance; the second household appliance executes the action corresponding to the command word according to the command word; the second household appliance is the household appliance that has not obtained the voice instruction.

[0012] In some embodiments, the voice processing unit is further configured to:

[0013] Obtain a command word according to the voice instruction; if the command word matches the determination word of the first household appliance, control the first household appliance to execute the action corresponding to the command word according to the command word.

[0014] In some embodiments, the voice processing unit is further configured to:

[0015] Convert the voice instruction into an electrical signal;

[0016] Use an analog-to-digital converter to convert the electrical signal into a digital signal;

[0017] Use digital signal processing technology to filter and denoise the digital signal;

[0018] Obtain a command word according to the digital signal.

[0019] In some embodiments, the voice processing unit is further configured to:

[0020] Obtain a wake-up word according to the voice instruction; if the wake-up word matches the wake-up word of the first household appliance, the first household appliance turns on the reading control mode;

[0021] Wherein, when the first household appliance is in the reading control mode, a command word can be obtained according to the voice instruction.

[0022] In some embodiments, the voice processing unit is further configured to:

[0023] Obtain the sound intensity according to the voice instruction;

[0024] If the sound intensity is greater than the preset sound intensity, turn on the voice instruction recognition function.

[0025] In some embodiments, the voice control module further includes:

[0026] A broadcast feedback unit, the broadcast feedback unit is configured to:

[0027] When the first household electrical appliance or the second household electrical appliance finishes performing the action corresponding to the command word according to the command word, control the first household electrical appliance to broadcast a preset prompt sound.

[0028] In some embodiments, the broadcast feedback unit is further configured to:

[0029] When the command word does not match the judgment word of the first household electrical appliance or the second household electrical appliance, control the first household electrical appliance to broadcast a preset warning sound.

[0030] In some embodiments, the system further includes:

[0031] A mobile terminal, the mobile terminal is communicatively connected to the cloud processing module through a WIFI module; the mobile terminal is configured to:

[0032] Display the names and quantities of the household electrical appliances connected to the cloud processing module.

[0033] In some embodiments, the mobile terminal is further configured to:

[0034] Display the wake-up word of the household electrical appliance;

[0035] Perform a revision operation on the wake-up word; the revision operation includes: addition, deletion, and correction operations.

[0036] The second aspect of the present application provides a distributed voice control method, which is applied to a distributed voice control system described in any one of the above first aspects, and includes:

[0037] Obtain a voice command;

[0038] According to the voice command, obtain a command word; if the command word does not match the determination word of the first household electrical appliance, send the command word to the cloud processing module; the first household electrical appliance is the household electrical appliance that has obtained the voice command;

[0039] The cloud processing module determines whether the command word matches the determination word of the second household electrical appliance according to the command word. If so, send the command word to the second household electrical appliance; the second household electrical appliance executes the action corresponding to the command word according to the command word; the second household electrical appliance is the household electrical appliance that has not obtained the voice command.

[0040] The present application provides a distributed voice control system and method, which are applied to household appliances. The household appliances are configured with a voice control module, and the voice control module is configured to obtain a voice command and control the household appliances to perform an action corresponding to the voice command according to the voice command. The household appliances are further configured with a determination word database for storing determination words, and include: a cloud processing module, which is communicatively connected to the voice control module through a WIFI module. The voice control module includes: a sound pickup unit configured to obtain a voice command; a voice processing unit configured to: obtain a command word according to the voice command; if the command word does not match the determination word of the first household appliance, send the command word to the cloud processing module. The first household appliance is the household appliance that has obtained the voice command. The cloud processing module is configured to: determine whether the command word matches the determination word of the second household appliance according to the command word. If so, send the command word to the second household appliance. The second household appliance performs an action corresponding to the command word according to the command word. The second household appliance is the household appliance that has not obtained the voice command, so as to enable each intelligent household appliance product with a voice interaction function to be used as an interaction terminal, and another household appliance located at another location can be controlled through voice interaction with one household appliance product, so that intelligent household appliance products can be more flexibly operated by voice, and the user experience is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0042] Figure 1 It is a schematic structural diagram of the distributed voice control system in the present application;

[0043] Figure 2 It is a schematic structural diagram of the voice control module in the present application;

[0044] Figure 3 It is a flowchart when the distributed voice control system in the present application runs;

[0045] Figure 4 It is a schematic diagram of the display interface of the mobile terminal in the present application;

[0046] Figure 5 It is a schematic diagram of the distribution of household appliances in the family in the present application.

[0047] DESCRIPTION OF THE REFERENCE NUMERALS

[0048] 1 - Home appliance device; 11 - Voice control module; 111 - Sound pickup unit; 112 - Voice processing unit; 113 - Announcement feedback unit; 2 - Cloud processing module; 3 - WIFI module; 4 - Mobile terminal. Detailed implementation manners

[0049] In order to enable those skilled in the art of the present technology to better understand the technical solutions in this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0050] Since in some technologies, the sound pickup range of smart home appliances or smart speakers is limited, and beyond a certain distance, there will be a situation where they cannot be awakened or the wake-up word or command word cannot be accurately recognized. To solve this technical problem, this application provides a distributed voice control system and method, and the distributed voice control system and method will be described below:

[0051] Exemplarily, voice control technology has been widely used in smart homes. For different home appliance products, there are different wake-up words and command word entries. After the home appliance product is awakened by the wake-up word, it executes different functions according to the received command word. Controlling home appliance products through voice command interaction can greatly improve the convenience of using home appliance products. In order to enable home appliances to accurately recognize voice commands, different home appliance products have different wake-up words or command words. Currently, there are mainly two voice interaction control methods, namely, the home appliance product itself directly realizes interaction control, or a smart speaker or the like is used as an interaction terminal, and through interaction with a smart speaker or the like, the smart speaker controls the home appliance product.

[0052] As Figure 5 shown, it is a schematic diagram of the distribution of home appliance devices in a family in this application.

[0053] However, no matter which interaction control method is used, due to the limited sound pickup range of home appliance products or smart speakers, beyond a certain distance, there will be a situation where they cannot be awakened or the wake-up word or command word cannot be accurately recognized. For example, when a user is in the bedroom and hopes to control home appliances in the living room or kitchen, due to the distance limitation, they cannot directly control the target home appliance by voice and need to reach within the voice recognition range of the target home appliance to perform voice interaction control, resulting in the user's reduced usage experience of the voice interaction function of home appliance products.

[0054] As Figure 1 shown, it is a schematic diagram of the structure of the distributed voice control system in this application.

[0055] The first aspect of the present application provides a distributed voice control system, which is applied to home appliance device 1. The home appliance device 1 is configured with a voice control module 11, and the voice control module 11 is configured to obtain a voice command and control the home appliance device 1 to execute the action corresponding to the voice command according to the voice command; the home appliance device 1 is further configured with a determination word database for storing determination words; the determination words are used to activate the voice control module 11; among them, the voice control module 11 can be the voice control function built in the home appliance device 1 or a smart home appliance device capable of externally connecting a voice control module. For example: Through an air conditioner device with or externally connected with a voice control module 11, it can be awakened by a wake-up word first and then controlled by a command word, such as: turn on the air conditioner, lower the air conditioner temperature by several degrees.

[0056] The system includes:

[0057] A cloud processing module 2, which is communicatively connected to the voice control module 11 through a WIFI module 3; the cloud processing module 2 stores the command words of each home appliance device 1 and can send the corresponding command words to the corresponding home appliance device 1. The cloud processing module 2 is also configured with the determination word database, but different from the determination word database configured by the home appliance device 1, the determination word database configured by the cloud processing module 2 is used to store the determination words of all home appliance devices 1 connected thereto.

[0058] As Figure 2 shown, it is a schematic structural diagram of the voice control module in the present application.

[0059] The voice control module 11 includes:

[0060] A sound pickup unit 111, which is configured to obtain a voice command; the voice command is a sound signal.

[0061] A voice processing unit 112, which is configured to: obtain a command word according to the voice command; if the command word does not match the determination word of the first home appliance device, send the command word to the cloud processing module 2; the first home appliance device is the home appliance device 1 that has obtained the voice command; the voice processing unit 112 is further configured to: obtain a command word according to the voice command; if the command word matches the determination word of the first home appliance device, control the first home appliance device to execute the action corresponding to the command word according to the command word.

[0062] As Figure 3 shown, it is a flowchart when the distributed voice control system in the present application runs.

[0063] Exemplarily, when the user sends a voice command to the home appliance device 1, the voice processing unit 112 first determines whether the command word matches the determination word stored in the home appliance device 1. If so, it directly controls the home appliance device 1 to perform corresponding actions according to the command word; if not, it sends the command word to the cloud processing module 2. The cloud processing module 2 matches the command word with the determination words in the determination word database. If a match can be found, it sends the command word to the matching home appliance device 1, and the home appliance device 1 performs corresponding actions according to the command word.

[0064] The cloud processing module 2 is configured to: according to the command word, determine whether the command word matches the determination word of the second home appliance device. If so, it sends the command word to the second home appliance device; the second home appliance device performs the actions corresponding to the command word according to the command word; the second home appliance device is the home appliance device 1 that has not received the voice command.

[0065] This application proposes a distributed voice control system, aiming to greatly improve the convenience and interactivity of home intelligent life. The system utilizes various voice-controlled home appliance devices already connected to the Internet within the home, enabling each such device to act as a user interaction terminal. In such a setup, no matter which corner of the home the user is in, they can simply issue a voice command to easily control various smart devices in the home.

[0066] Specifically, when a certain voice home appliance device in the home is awakened by the user's voice, it will first enter a highly sensitive listening state to accurately capture and analyze the subsequent received command word. The built-in voice control module 11 of the device will quickly determine whether this command directly targets itself, that is, whether it is a specific voice command entry preset or responsive to this device. If it is confirmed that the command word matches its own function, then the device will immediately perform corresponding operations or functions, such as adjusting the temperature of the air conditioner, turning on or off the lights, etc., to meet the user's immediate needs.

[0067] However, if the device detects that the received command word is not targeted at itself but at other devices in the home, it will then demonstrate the high coordination and intelligent processing capabilities of the system. The device will automatically upload this command word that does not correspond to this device to the cloud processing module 2. Once the cloud processing module 2 receives the uploaded command entry, it will immediately deeply analyze and compare the command word to accurately determine which target device this command actually targets. Once the target device is determined, the cloud processing module 2 will quickly send this command entry to the corresponding target home appliance device 1 through the network, thereby achieving remote precise control of the target home appliance device 1.

[0068] In this embodiment, the voice processing unit 112 is further configured to: convert the voice command into an electrical signal; convert the electrical signal into a digital signal by using an analog-to-digital converter; filter and denoise the digital signal by using digital signal processing technology; and obtain a command word according to the digital signal.

[0069] Specifically, first, the sound signal is converted into an electrical signal, that is, the voice command is converted into an electrical signal; then, the analog electrical signal is converted into a digital signal through an analog-to-digital converter (ADC) for subsequent digital signal processing; subsequently, digital signal processing technology is used to filter and denoise the digital signal to reduce the interference of noise on the signal and improve the clarity of the voice signal; preprocessing operations such as frame analysis and windowing are performed on the digital signal to better extract voice features; subsequently, the digital signal is converted from the time domain to the frequency domain, and spectral features, energy features, voice segment features, etc. of the digital signal are extracted through methods such as Fourier transform, and these features are converted into a series of vectors representing their characteristics; finally, the extracted voice feature vectors are input into an acoustic model, and the acoustic model calculates the score of each feature vector according to the acoustic features, thereby identifying the phonemes or syllables in the voice signal; according to relevant linguistic theories, the language model calculates the probability of the phrase sequence corresponding to the sound signal; at the same time, in combination with a preset dictionary, the phrase sequence is decoded to obtain a possible text representation; in the decoded text, through a matching algorithm and pattern recognition technology, the vocabulary that matches the keywords in the preset keyword library is extracted as the final keyword output, that is, the command word is output.

[0070] In this embodiment, the voice processing unit 112 is further configured to: obtain a wake-up word according to the voice command; if the wake-up word matches the wake-up word of the first household electrical appliance, the first household electrical appliance turns on the reading control mode; wherein, when the first household electrical appliance is in the reading control mode, a command word can be obtained according to the voice command. After the household electrical appliance 1 obtains the correct wake-up word, the household electrical appliance 1 can continue to receive voice commands and obtain command words according to the voice commands.

[0071] Exemplarily, when the household electrical appliance 1 receives a voice command, it first determines whether it contains a wake-up word. If it does, the reading control mode of the household electrical appliance 1 is started; at this time, the household electrical appliance 1 can emit a preset prompt sound to remind the user that a voice command can be sent to the household electrical appliance 1; the user can state the corresponding voice command to the first household electrical appliance, so that the household electrical appliance 1 obtains the corresponding command word according to the voice command. By setting the wake-up word, it can prevent the user from triggering multiple devices when speaking a voice command, thereby improving the accuracy of the household electrical appliance 1 in receiving voice commands.

[0072] In this embodiment, the voice processing unit 112 is further configured to:

[0073] According to the voice command, obtain the sound intensity; when the home appliance device 1 obtains the user's voice command, it will first obtain the sound intensity of the voice command; if the sound intensity is greater than the preset sound intensity, the voice command recognition function is enabled. The voice command recognition function is the function of obtaining a wake-up word or a command word through a voice command.

[0074] Exemplarily, to prevent the user from accidentally triggering the voice control function of the home appliance device 1 in daily life, the present application sets a preset sound intensity index. Through the preset sound intensity index, the home appliance device 1 can be prevented from making misjudgments, that is, when the sound intensity of the voice command is greater than the preset sound intensity, the voice command recognition function can be enabled to improve the user experience of using smart home.

[0075] In this embodiment, the voice control module 11 further includes: a broadcast feedback unit 113, and the broadcast feedback unit 113 is configured to:

[0076] When the first home appliance device or the second home appliance device finishes executing the action corresponding to the command word according to the command word, control the first home appliance device to broadcast a preset prompt sound.

[0077] Exemplarily, if the user controls the second home appliance device to execute the action corresponding to the command word by triggering the first home appliance device, due to a certain distance between the second home appliance device and the first home appliance device, and even separated by several rooms, the user does not know whether the second home appliance device has completed the action corresponding to the command word. Through the setting of the broadcast feedback unit 113 in the present application, when the first home appliance device or the second home appliance device finishes executing the action corresponding to the command word according to the command word, the first home appliance device can be controlled to broadcast a preset prompt sound to prompt the user that the first home appliance device or the second home appliance device has completed the action corresponding to the command word.

[0078] Specifically, for example, the command word is to lower the air conditioner temperature, and the corresponding preset prompt sound is that the air conditioner temperature has been lowered.

[0079] In this embodiment, the broadcast feedback unit 113 is further configured to:

[0080] When the command word does not match the judgment word of the first home appliance device or the second home appliance device, control the first home appliance device to broadcast a preset warning sound.

[0081] Exemplarily, sometimes the command words stated by the user may be incorrect. To prevent the user from thinking that the correct command words have been input, in this application, when the voice command is input by the user and the generated command word does not match the judgment word of the first household appliance device or the second household appliance device, the broadcast feedback unit 113 is controlled to broadcast a preset warning sound by the first household appliance device, so as to remind the user to re-enter the voice command and avoid unnecessary waiting time.

[0082] Specifically, when the user wants to lower the air conditioner temperature but states to lower the washing machine, the broadcast feedback unit 113 controls the first household appliance device to broadcast a warning sound indicating that the control command is incorrect, thereby reminding the user to re-enter the voice command.

[0083] As Figure 4 shown, it is a schematic diagram of the display interface of the mobile terminal 4 in this application.

[0084] In this embodiment, the system further includes: a mobile terminal 4, and the mobile terminal 4 is communicatively connected to the cloud processing module 2 through a WIFI module 3; the mobile terminal 4 is configured to:

[0085] display the names and quantities of the household appliance devices 1 connected to the cloud processing module 2.

[0086] Exemplarily, through the mobile terminal 4, the names and quantities of the household appliance devices 1 connected to the cloud processing module 2 can be viewed. The user can view the connection status of the household appliance devices 1 through the mobile terminal 4. By viewing the connection status, it is possible to prevent the problem that the user cannot know after the voice control module 11 of the household appliance device 1 is damaged. Through the connection status, the household appliance devices 1 not connected to the cloud processing module 2 can be adjusted or repaired in a timely manner.

[0087] In this embodiment, the mobile terminal 4 is further configured to:

[0088] display the wake-up words of the household appliance device 1; perform a revision operation on the wake-up words; the revision operation includes: addition, deletion, and correction operations. The user can add, delete, and correct the wake-up words through the mobile terminal 4. The user can adjust the wake-up words according to his own habits, thereby awakening the voice control interaction function of the household appliance device 1 to improve the user experience.

[0089] The present application provides a distributed voice control system for household appliances 1 with voice interaction function and networking function, and it is necessary to ensure that the household appliances 1 are under the same household management after being connected to the network, that is, under the same WIFI; the household appliances 1 can transmit unrecognized command words to the cloud processing module 2 for processing; a number of household appliances 1 under the same household management are uniformly managed by the cloud processing module 2. The cloud processing module 2 can automatically collect the wake-up words and command words of each household appliance product, and can analyze and process the command words uploaded by each household appliance, determine the target household appliance corresponding to the command word, and perform corresponding control on it; the user can control another household appliance product in another space through voice interaction with a wake-up household appliance product, and the control result can be fed back through the wake-up household appliance product.

[0090] In a second aspect of the present application, a distributed voice control method is provided, which is applied to a distributed voice control system according to any of the above embodiments, and includes:

[0091] Obtain a voice instruction;

[0092] According to the voice instruction, obtain a command word; if the command word does not match the determination word of the first household appliance, then send the command word to the cloud processing module; the first household appliance is the household appliance that has obtained the voice instruction;

[0093] The cloud processing module determines whether the command word matches the determination word of the second household appliance according to the command word. If so, send the command word to the second household appliance; the second household appliance executes the action corresponding to the command word according to the command word; the second household appliance is the household appliance that has not obtained the voice instruction.

[0094] It should be noted that the effects of the above method embodiments can be referred to the effects of the above system embodiments, which will not be elaborated here.

[0095] The present application provides a distributed voice control system and method, and the specific implementation manners are as follows:

[0096] When all the home appliance devices 1 are connected to the network and under the same WIFI in the APP, the cloud processing module 2 will automatically collect the wake-up words and command words of each home appliance device 1 in the family. At this time, if the user is in Room A and wants to control the second home appliance device in Room B, the user can wake up the first home appliance device in Room A and then say the command word for controlling the second home appliance device to the first home appliance device. At this time, after receiving the command word, the first home appliance device processes it through its own voice control module 11 and concludes that the command word is not its own command entry, and uploads the command word to the cloud processing module 2. After receiving it, the cloud processing module 2 finds the target device by comparing the collected command words of other devices and sends it to the voice control module 11 of the target device. After receiving it, the target device executes the corresponding function and feeds back the execution result to the data processing module 2, and the data processing module 2 then forwards it to the first home appliance device, and the first home appliance device feeds back the result to the user through the broadcast feedback unit 113.

[0097] The above specific implementation manners have further elaborated on the purpose, technical solutions, and beneficial effects of the embodiments of the present application. It should be understood that the above are only the specific implementation manners of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

1. A distributed voice control system, applied to a household appliance (1), the household appliance (1) being provided with a voice control module (11), the voice control module (11) being configured to obtain a voice instruction and, according to the voice instruction, control the household appliance (1) to execute an action corresponding to the voice instruction; The household appliance (1) is also equipped with a judgment word database, which is used to store judgment words; it is characterized in that: include: A cloud processing module (2), the cloud processing module (2) being communicatively connected to the voice control module (11) via a WIFI module (3); The voice control module (11) comprises: A sound pickup unit (111), wherein the sound pickup unit (111) is configured to acquire a voice instruction; A voice processing unit (112), the voice processing unit (112) being configured to: obtain a command word according to the voice instruction; if the command word does not match a determination word of a first household appliance, send the command word to the cloud processing module (2); the first household appliance is the household appliance (1) that has obtained the voice instruction; The cloud processing module (2) is configured to: determine, based on the command word, whether the command word matches a determination word of a second home appliance; if so, send the command word to the second home appliance; the second home appliance executes an action corresponding to the command word based on the command word; the second home appliance is a home appliance (1) that has not received the voice command.

2. A distributed voice control system according to claim 1, characterized in that: The speech processing unit (112) is further configured to: According to the voice instruction, a command word is obtained; if the command word matches the determination word of the first household appliance, the first household appliance is controlled to execute an action corresponding to the command word according to the command word.

3. A distributed voice control system according to claim 1, characterized in that: The speech processing unit (112) is further configured to: Converting the voice command into an electrical signal; Converting the electrical signal into a digital signal using an analog-to-digital converter; Using digital signal processing technology to filter and reduce noise on the digital signal; A command word is obtained according to the digital signal.

4. A distributed voice control system according to claim 1, characterized in that: The speech processing unit (112) is further configured to: According to the voice command, a wake-up word is acquired; if the wake-up word matches the wake-up word of the first household appliance, the first household appliance starts a reading control mode; Among them, when the first household appliance is in the reading control mode, the command word can be obtained according to the voice instruction.

5. A distributed voice control system according to claim 1, characterized in that: The speech processing unit (112) is further configured to: According to the voice command, obtaining sound intensity; If the sound intensity is greater than the preset sound intensity, the voice command recognition function is turned on.

6. A distributed voice control system according to claim 1, characterized in that: The voice control module (11) further comprises: A broadcast feedback unit (113), wherein the broadcast feedback unit (113) is configured to: When the first home appliance or the second home appliance completes the action corresponding to the command word according to the command word, the first home appliance is controlled to broadcast a preset prompt sound.

7. A distributed voice control system according to claim 6, characterized in that: The broadcast feedback unit (113) is further configured to: When the command word does not match the judgment word of the first home appliance or the second home appliance, the first home appliance is controlled to broadcast a preset warning sound.

8. A distributed voice control system according to claim 1, characterized in that: The system further comprises: A mobile terminal (4), wherein the mobile terminal (4) is connected to the cloud processing module (2) via a WIFI module (3); the mobile terminal (4) is configured as follows: Display the names and quantities of the household electrical appliances (1) connected to the cloud processing module (2).

9. A distributed voice control system according to claim 8, characterized in that: The mobile terminal (4) is further configured as: Displaying a wake-up word of the household appliance (1); The wake-up word is revised; the revision operation includes: adding, deleting, and correcting operations.

10. A distributed voice control method, applied to a distributed voice control system as claimed in any one of claims 1 to 9, characterized in that: include: Get voice commands; According to the voice command, obtaining a command word; If the command word does not match the determination word of the first household appliance, the command word is sent to a cloud processing module; The first household appliance is a household appliance that has acquired the voice command; The cloud processing module determines, based on the command word, whether the command word matches a determination word of the second home appliance, and if so, sends the command word to the second home appliance; The second household appliance performs an action corresponding to the command word according to the command word; The second household appliance is a household appliance that has not obtained the voice command.

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