WO2023221062A1 - 电子设备的语音唤醒方法、装置、存储介质及芯片 - Google Patents

电子设备的语音唤醒方法、装置、存储介质及芯片 Download PDF

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Publication number
WO2023221062A1
WO2023221062A1 PCT/CN2022/093973 CN2022093973W WO2023221062A1 WO 2023221062 A1 WO2023221062 A1 WO 2023221062A1 CN 2022093973 W CN2022093973 W CN 2022093973W WO 2023221062 A1 WO2023221062 A1 WO 2023221062A1
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WIPO (PCT)
Prior art keywords
electronic device
distance
wake
user
policy
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PCT/CN2022/093973
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English (en)
French (fr)
Inventor
周岭松
Original Assignee
北京小米移动软件有限公司
北京小米松果电子有限公司
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Application filed by 北京小米移动软件有限公司, 北京小米松果电子有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2022/093973 priority Critical patent/WO2023221062A1/zh
Priority to CN202280004488.8A priority patent/CN116097349A/zh
Publication of WO2023221062A1 publication Critical patent/WO2023221062A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic, or infrasonic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/539—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L15/00—Speech recognition
    • G10L15/22—Procedures used during a speech recognition process, e.g. man-machine dialogue
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a voice wake-up method, device, storage medium and chip for electronic equipment.
  • the present disclosure provides a voice wake-up method, device, storage medium and chip for electronic equipment.
  • a voice wake-up method for an electronic device is provided, which is applied to a first electronic device, where the first electronic device and a plurality of second electronic devices are located in the same local area network.
  • the method includes:
  • a first distance is obtained based on ultrasonic detection, and the first distance is used to represent the distance between the first electronic device and the user;
  • the server Send the first distance to the server, and receive a wake-up policy fed back by the server, where the wake-up policy is used to indicate that among multiple electronic devices connected to the local area network, the first electronic device Whether it is the electronic device closest to the user;
  • determining whether to respond to the wake-up word according to the wake-up policy includes:
  • the wake-up policy indicates that the first electronic device is the electronic device closest to the user among the plurality of electronic devices, respond to the wake-up word.
  • the first distance obtained based on ultrasonic detection includes:
  • the second acoustic wave signal is a reflection signal of the first acoustic wave signal from a person or object in the space where the first electronic device is located;
  • the second sound wave signal it is determined whether there is a user in the space where the electronic device is located, and if there is a user, the first distance is determined.
  • determining whether there is a user in the space where the electronic device is located based on the second sound wave signal includes:
  • the ultrasonic disturbance amplitude value is non-zero, it is determined that a user exists in the space where the first electronic device is located.
  • determining the first distance includes:
  • a two-dimensional echo image is constructed according to the ultrasonic disturbance amplitude value, wherein in the two-dimensional image, the abscissa represents distance and the ordinate represents angle;
  • peak detection is performed on the acoustic wave disturbance amplitude value to obtain a disturbance center point that represents the peak value of the acoustic wave signal, and the coordinate position of the disturbance center point is determined in the echo two-dimensional image.
  • the disturbance center point is used to represent the user's position in the preset space;
  • the distance between the disturbance center point and the first electronic device is taken as the first distance.
  • the method further includes:
  • the latest first distance is sent to the server.
  • the second aspect provides a voice wake-up method for electronic devices, which is applied to servers, including:
  • first distance is sent by a first electronic device, and the first distance is used to indicate a distance between the first electronic device and a user, wherein the first electronic device and multiple A second electronic device is located on the same local area network;
  • a wake-up policy corresponding to the first electronic device is determined, the wake-up policy is used to indicate whether the first electronic device is among a plurality of electronic devices connected to the local area network. The electronic device closest to the user;
  • determining a wake-up strategy corresponding to the first electronic device according to the first distance includes:
  • the second distance is sent by the second electronic device, the second distance indicates the distance between the second electronic device and the user;
  • the first distance and the second distance are compared, and the wake-up strategy is obtained based on the comparison result.
  • a voice wake-up device for an electronic device is provided, applied to a first electronic device, the first electronic device and a plurality of second electronic devices are located in the same local area network, and the device includes:
  • a measurement module configured to obtain a first distance based on ultrasonic detection, where the first distance is used to represent the distance between the first electronic device and the user;
  • a first sending module configured to send the first distance to a server, and receive a wake-up strategy fed back by the server, where the wake-up strategy is used to indicate that among multiple electronic devices connected to the local area network , whether the first electronic device is the electronic device closest to the user;
  • a response module configured to determine whether to respond to the wake-up word according to the wake-up policy after detecting the wake-up word.
  • the response module determines whether to respond to the wake-up word according to the wake-up policy in the following manner:
  • the wake-up policy indicates that the first electronic device is the electronic device closest to the user among the plurality of electronic devices, respond to the wake-up word.
  • the measurement module obtains the first distance based on ultrasonic detection in the following manner:
  • the second acoustic wave signal is a reflection signal of the first acoustic wave signal from a person or object in the space where the first electronic device is located;
  • the second sound wave signal it is determined whether there is a user in the space where the electronic device is located, and if there is a user, the first distance is determined.
  • the measurement module determines whether there is a user in the space where the electronic device is located based on the second acoustic signal in the following manner:
  • the ultrasonic disturbance amplitude value is non-zero, it is determined that a user exists in the space where the first electronic device is located.
  • the measurement module determines the first distance in the following manner:
  • a two-dimensional echo image is constructed according to the ultrasonic disturbance amplitude value, wherein in the two-dimensional image, the abscissa represents distance and the ordinate represents angle;
  • peak detection is performed on the acoustic wave disturbance amplitude value to obtain a disturbance center point that represents the peak value of the acoustic wave signal, and the coordinate position of the disturbance center point is determined in the echo two-dimensional image.
  • the disturbance center point is used to represent the user's position in the preset space;
  • the distance between the disturbance center point and the first electronic device is taken as the first distance.
  • the device further includes:
  • An update module used to detect whether the first distance changes in real time
  • the latest first distance is sent to the server.
  • the fourth aspect provides a voice wake-up device for electronic equipment, applied to servers, including:
  • An acquisition module configured to acquire a first distance, wherein the first distance is sent by a first electronic device, and the first distance is used to indicate a distance between the first electronic device and a user, wherein the first distance is An electronic device and multiple second electronic devices are located in the same local area network;
  • Determining module configured to determine a wake-up strategy corresponding to the first electronic device according to the first distance, where the wake-up strategy is used to indicate that the third electronic device among multiple electronic devices connected to the local area network Whether an electronic device is the electronic device closest to the user;
  • the second sending module is configured to send the wake-up policy to the first electronic device.
  • the determination module determines the wake-up strategy corresponding to the first electronic device according to the first distance in the following manner:
  • the second distance is sent by the second electronic device, the second distance indicates the distance between the second electronic device and the user;
  • the first distance and the second distance are compared, and the wake-up strategy is obtained based on the comparison result.
  • a voice wake-up device for electronic equipment including:
  • a processor configured to execute the computer program in the memory to implement the steps of the voice wake-up method for an electronic device provided in the first aspect of the present disclosure.
  • a voice wake-up device for electronic equipment including:
  • a processor configured to execute the computer program in the memory to implement the steps of the voice wake-up method for an electronic device provided in the second aspect of the present disclosure.
  • a computer-readable storage medium on which computer program instructions are stored.
  • the program instructions are executed by a processor, the voice wake-up method of an electronic device provided by the first aspect of the present disclosure is implemented. A step of.
  • a computer-readable storage medium on which computer program instructions are stored.
  • the program instructions are executed by a processor, the voice wake-up method of an electronic device provided by the second aspect of the present disclosure is implemented. A step of.
  • a chip including a processor and an interface; the processor is configured to read instructions to execute the steps of the voice wake-up method of an electronic device provided in the first aspect of the present disclosure.
  • the first electronic device obtains the first distance between the first electronic device and the user based on ultrasonic detection, and after sending the first distance to the server, receives an instruction fed back by the server.
  • the first electronic device determines whether it is necessary to respond to the wake-up word, thereby improving the wake-up response speed of the first electronic device.
  • Figure 1 is a flow chart of a voice wake-up method for an electronic device according to an exemplary embodiment.
  • FIG. 2 is a flow chart of a voice wake-up method for an electronic device according to an exemplary embodiment.
  • Figure 3 is an interactive flow chart of a voice wake-up method for an electronic device according to an exemplary embodiment.
  • FIG. 4 is a block diagram of a voice wake-up device for an electronic device according to an exemplary embodiment.
  • FIG. 5 is a block diagram of a voice wake-up device for an electronic device according to an exemplary embodiment.
  • FIG. 6 is a block diagram of an apparatus for voice wake-up of an electronic device according to an exemplary embodiment.
  • FIG. 7 is a block diagram of an apparatus for voice wake-up of an electronic device according to an exemplary embodiment.
  • the wake-up word in the application scenario of voice wake-up, after the user shouts the wake-up word, for example, multiple electronic devices included in the same local area network will detect the wake-up word, generate a wake-up request based on the wake-up word, and carry the wake-up word.
  • the wake-up request of the sound energy of the word is sent to the server.
  • the server obtains the wake-up requests sent by all electronic devices included in the smart home device, and determines the wake-up word for each electronic device according to the sound energy of the wake-up word in the wake-up request sent by each electronic device.
  • the wake-up strategy is sent to the corresponding electronic device, so that the electronic device performs a wake-up operation or suppresses a wake-up operation.
  • the inventor of the present disclosure found that the solutions in the related art have the following problems: different electronic devices detect the wake-up word at different times, and different electronic devices will carry the sound energy of the wake-up word.
  • the time at which wake-up requests are sent to the server is also different, and the server can only determine the wake-up strategy for each electronic device after receiving wake-up requests from all electronic devices.
  • the server waits for a long time, which reduces the wake-up response speed of the electronic devices.
  • all electronic devices that detect the wake-up word need to send a wake-up request to the server.
  • the server will issue instructions after receiving the wake-up requests from all electronic devices. This involves two information transmissions, and the more devices there are, the harder the network will be. The more complex it is, the longer the transmission time will be. It is easy for the user to wait for a long time to receive a response from the electronic device after shouting the wake-up word.
  • the present disclosure provides a voice wake-up method for an electronic device.
  • the first electronic device obtains the first distance between the first electronic device and the user based on ultrasonic detection, After sending the first distance to the server, receiving feedback from the server indicates whether the first electronic device is the wake-up strategy of the electronic device closest to the user among multiple electronic devices connected to the local area network.
  • the first electronic device does not need to send the detected wake-up word to the server, and the server does not need to receive the wake-up request generated by the electronic device based on the wake-up word in real time and make a wake-up result based on the accepted wake-up request.
  • the first electronic device directly determines whether it needs to respond to the wake-up word according to the wake-up policy, which improves the wake-up response speed of the first electronic device.
  • Figure 1 is a flow chart of a voice wake-up method for an electronic device according to an exemplary embodiment. As shown in Figure 1, the voice wake-up method for an electronic device is used in a first electronic device and includes the following steps.
  • step S11 a first distance is obtained based on ultrasonic detection, and the first distance is used to represent the distance between the first electronic device and the user.
  • the first electronic device and the plurality of second electronic devices are located in the same local area network, and the first electronic device includes a voice wake-up module and an ultrasonic ranging module.
  • the first electronic device After detecting the first distance between the first electronic device and the user through the ultrasonic ranging module, the first electronic device sends the first distance to the server.
  • the server determines whether the first electronic device is the electronic device closest to the user among multiple electronic devices connected to the local area network based on the first distance, and then feeds back the wake-up policy to the first electronic device.
  • the first electronic device After the first electronic device detects the wake-up word, it determines whether to respond to the wake-up word according to the wake-up policy fed back by the server.
  • the following method may be used to obtain the first distance based on ultrasonic detection:
  • the first electronic device emits a first acoustic wave signal into the space where the first electronic device is located according to the preset ultrasonic frequency band information, and the first electronic device receives a second acoustic wave signal reflected by the first acoustic wave signal, wherein the second acoustic wave
  • the signal is a reflection signal of the first sound wave signal from a person or object in the space where the first electronic device is located.
  • the first electronic device determines whether there is a user in the space where the electronic device is located based on the second acoustic wave signal, and if there is a user, determines the first distance. When it is determined that there is a user at the spatial location of the target electronic device, the first target distance is determined and the first target distance is sent to the server.
  • the first electronic device Since the ultrasonic signal is stable and has almost no disturbance when the spatial position is determined, the first electronic device emits the first acoustic signal and collects the reflection of the first acoustic signal through the microphone array included in the first electronic device. After receiving the second acoustic wave signal, it is determined according to the second acoustic wave signal whether there is an acoustic wave disturbance area in the space where the first electronic device is located. If there is an acoustic wave disturbance area, it can be determined that there is a user in the space where the target electronic device is located.
  • whether there is a user in the space where the electronic device is located can be determined based on the second acoustic wave signal in the following manner:
  • the first electronic device inputs the second acoustic wave signal into the 2D MUSIC algorithm, calculates the ultrasonic disturbance amplitude in the position space of the first electronic device through the 2D MUSIC algorithm, and determines the location of the first electronic device when the ultrasonic disturbance amplitude value is non-zero. There are users in the space.
  • an echo two-dimensional image can be constructed based on the ultrasonic disturbance amplitude value.
  • the abscissa represents the distance from the first electronic device
  • the ordinate represents the distance to the first electronic device. Indicates the angle with respect to the first electronic device.
  • the peak value of the acoustic wave disturbance amplitude can be detected to obtain the disturbance center point that represents the peak value of the acoustic wave signal, and the coordinate position of the disturbance center point can be determined in the echo two-dimensional image.
  • the disturbance center point is used to represent the user's predetermined position. Assume the position in space, and take the distance between the disturbance center point and the first electronic device as the first distance.
  • the 2D MUSIC algorithm and the peak algorithm can be, for example, pre-written in the chip of the first electronic device to determine the ultrasonic disturbance amplitude value around the first electronic device according to the 2D MUSIC algorithm.
  • step S12 the first distance is sent to the server, and the wake-up strategy fed back by the server is received.
  • the first electronic device obtains the first distance from the user based on ultrasonic detection, and after sending the first distance to the server, it can detect whether the first distance changes in real time, and in response to detecting that the first distance changes, The latest first distance is sent to the server.
  • the server can re-determine whether the latest first distance is the received shortest distance based on the latest first distance, and re-determine the wake-up policy for the first electronic device.
  • step S13 after detecting the wake-up word, it is determined whether to respond to the wake-up word according to the wake-up policy.
  • the first electronic device after detecting the wake-up word, can determine whether to respond to the wake-up word according to the wake-up policy fed back by the server.
  • the first electronic device determines that the wake-up word needs to be updated according to the wake-up policy. to respond.
  • the first electronic device determines that there is no need to wake up the device based on the wake-up policy. words to respond.
  • the first electronic device obtains the first distance between the first electronic device and the user based on ultrasonic detection, and after sending the first distance to the server, receives an indication fed back by the server that is consistent with the location in the local area network.
  • whether the first electronic device is the electronic device closest to the user has a wake-up strategy. In this way, after the first electronic device detects the wake-up word, the first electronic device does not need to use the detected wake-up word. word is sent to the server, and the server does not need to receive the wake-up request generated by the first electronic device based on the wake-up word in real time and make a wake-up result based on the accepted wake-up request. Instead, after the first electronic device detects the wake-up word, it directly determines based on the wake-up policy. Whether it is necessary to respond to the wake-up word improves the wake-up response speed of the first electronic device.
  • FIG. 2 is a flow chart of a voice wake-up method for an electronic device according to an exemplary embodiment. As shown in Figure 2, the voice wake-up method for an electronic device is applied to a server and includes the following steps.
  • step S21 the first distance is obtained.
  • the first distance is sent by the first electronic device, and the first distance is used to indicate the distance between the first electronic device and the user, where the first electronic device and the plurality of second electronic devices are located in the same local area network.
  • step S22 a wake-up policy corresponding to the first electronic device is determined according to the first distance.
  • the wake-up policy is used to indicate whether the first electronic device is the electronic device closest to the user among multiple electronic devices connected to the local area network.
  • the wake-up strategy corresponding to the first electronic device may be determined in the following manner, for example:
  • the second distance is sent by the second electronic device, the second distance indicates the distance between the second electronic device and the user, compare the first distance and the second distance, and according to the comparison result , to obtain the wake-up strategy for the first electronic device.
  • the wake-up policy corresponding to the first electronic device is: indicating whether the first electronic device is connected to the user among multiple electronic devices connected to the local area network. The nearest electronic device. Or, when the second distance is not obtained, determining the wake-up policy corresponding to the first electronic device is: among multiple electronic devices connected to the local area network, whether the first electronic device is between the first electronic device and the user. The nearest electronic device. Wake-up strategy for the first electronic device.
  • step S23 a wake-up policy is sent to the first electronic device.
  • the server when the server receives the updated first distance sent by the first electronic device, it can re-determine the wake-up policy corresponding to the first electronic device based on the above method of determining the wake-up policy corresponding to the first electronic device.
  • the first electronic device obtains the first distance between the first electronic device and the user based on ultrasonic detection. After sending the first distance to the server, the server determines the distance between the first electronic device and the first user based on the first distance. The wake-up strategy corresponding to the electronic device is sent to the first electronic device. Furthermore, after the first electronic device detects the wake-up word, the first electronic device can directly determine whether the wake-up word needs to be modified based on the wake-up policy received from the server. To respond, the wake-up response speed of the first electronic device is improved.
  • Figure 3 is an interactive flow chart of a voice wake-up method for an electronic device according to an exemplary embodiment. As shown in Figure 3, the voice wake-up method for an electronic device includes the following steps.
  • step S31 the first electronic device obtains a first distance from the user based on ultrasonic detection.
  • step S32 the first electronic device sends the first distance to the server.
  • step S33 the server obtains the first distance, and determines the wake-up policy corresponding to the first electronic device based on the first distance.
  • step S34 the server sends the wake-up policy to the first electronic device.
  • step S35 after detecting the wake-up word, the first electronic device determines whether to respond to the wake-up word according to the wake-up policy.
  • FIG. 4 is a block diagram of a voice wake-up device 400 for an electronic device according to an exemplary embodiment.
  • the voice wake-up device for an electronic device is applied to a first electronic device, the first electronic device and a plurality of second electronic devices.
  • the devices include:
  • the measurement module 401 is used to obtain a first distance based on ultrasonic detection, where the first distance is used to represent the distance between the first electronic device and the user;
  • the first sending module 402 is configured to send the first distance to the server, and receive a wake-up strategy fed back by the server, where the wake-up strategy is used to indicate multiple electronic devices connected to the local area network. , whether the first electronic device is the electronic device closest to the user;
  • the response module 403 is configured to determine whether to respond to the wake-up word according to the wake-up policy after detecting the wake-up word.
  • the response module 403 determines whether to respond to the wake-up word according to the wake-up policy in the following manner:
  • the wake-up policy indicates that the first electronic device is the electronic device closest to the user among the plurality of electronic devices, respond to the wake-up word.
  • the measurement module 401 obtains the first distance based on ultrasonic detection in the following manner:
  • the second acoustic wave signal is a reflection signal of the first acoustic wave signal from a person or object in the space where the first electronic device is located;
  • the second sound wave signal it is determined whether there is a user in the space where the electronic device is located, and if there is a user, the first distance is determined.
  • the measurement module 401 determines whether there is a user in the space where the electronic device is located based on the second acoustic wave signal in the following manner:
  • the ultrasonic disturbance amplitude value is non-zero, it is determined that a user exists in the space where the first electronic device is located.
  • the measurement module 401 determines the first distance in the following manner:
  • a two-dimensional echo image is constructed according to the ultrasonic disturbance amplitude value, wherein in the two-dimensional image, the abscissa represents distance and the ordinate represents angle;
  • peak detection is performed on the acoustic wave disturbance amplitude value to obtain a disturbance center point that represents the peak value of the acoustic wave signal, and the coordinate position of the disturbance center point is determined in the echo two-dimensional image.
  • the disturbance center point is used to represent the user's position in the preset space;
  • the distance between the disturbance center point and the first electronic device is taken as the first distance.
  • the device further includes:
  • An update module used to detect whether the first distance changes in real time
  • the latest first distance is sent to the server.
  • FIG. 5 is a block diagram of a voice wake-up device 500 for an electronic device according to an exemplary embodiment.
  • the voice wake-up device for an electronic device, applied to a server, includes:
  • Obtaining module 501 is used to obtain a first distance, wherein the first distance is sent by the first electronic device, and the first distance is used to indicate the distance between the first electronic device and the user, wherein the The first electronic device and the plurality of second electronic devices are located in the same local area network;
  • Determining module 502 configured to determine a wake-up strategy corresponding to the first electronic device according to the first distance, where the wake-up strategy is used to indicate that among multiple electronic devices connected to the local area network, the Whether the first electronic device is the electronic device closest to the user;
  • the second sending module 503 is used to send the wake-up policy to the first electronic device.
  • the determination module 502 determines the wake-up strategy corresponding to the first electronic device according to the first distance in the following manner:
  • the second distance is sent by the second electronic device, the second distance indicates the distance between the second electronic device and the user;
  • the first distance and the second distance are compared, and the wake-up strategy is obtained based on the comparison result.
  • the present disclosure also provides a computer-readable storage medium on which computer program instructions are stored. When the program instructions are executed by a processor, the steps of the voice wake-up method of the electronic device provided by the present disclosure are implemented.
  • FIG. 6 is a block diagram of an apparatus 800 for voice wake-up of an electronic device according to an exemplary embodiment.
  • the device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like.
  • the device 800 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and communications component 816.
  • a processing component 802 a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input/output (I/O) interface 812, a sensor component 814, and communications component 816.
  • Processing component 802 generally controls the overall operations of device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above voice wake-up method for electronic devices.
  • processing component 802 may include one or more modules that facilitate interaction between processing component 802 and other components.
  • processing component 802 may include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.
  • Memory 804 is configured to store various types of data to support operations at device 800 . Examples of such data include instructions for any application or method operating on device 800, contact data, phonebook data, messages, pictures, videos, etc.
  • Memory 804 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EEPROM), Programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EEPROM erasable programmable read-only memory
  • EPROM Programmable read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory, magnetic or optical disk.
  • Power component 806 provides power to various components of device 800.
  • Power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to device 800 .
  • Multimedia component 808 includes a screen that provides an output interface between the device 800 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide action.
  • multimedia component 808 includes a front-facing camera and/or a rear-facing camera.
  • the front camera and/or the rear camera may receive external multimedia data.
  • Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
  • Audio component 810 is configured to output and/or input audio signals.
  • audio component 810 includes a microphone (MIC) configured to receive external audio signals when device 800 is in operating modes, such as call mode, recording mode, and speech recognition mode. The received audio signal may be further stored in memory 804 or sent via communication component 816 .
  • audio component 810 also includes a speaker for outputting audio signals.
  • the I/O interface 812 provides an interface between the processing component 802 and a peripheral interface module, which may be a keyboard, a click wheel, a button, etc. These buttons may include, but are not limited to: Home button, Volume buttons, Start button, and Lock button.
  • Sensor component 814 includes one or more sensors that provide various aspects of status assessment for device 800 .
  • the sensor component 814 can detect the open/closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor component 814 can also detect a change in position of the device 800 or a component of the device 800. , the presence or absence of user contact with the device 800 , device 800 orientation or acceleration/deceleration and temperature changes of the device 800 .
  • Sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 816 is configured to facilitate wired or wireless communication between apparatus 800 and other devices.
  • Device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • the communication component 816 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communications component 816 also includes a near field communications (NFC) module to facilitate short-range communications.
  • NFC near field communications
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • apparatus 800 may be configured by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Gate array (FPGA), controller, microcontroller, microprocessor or other electronic components are implemented for executing the voice wake-up method of the above electronic device.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Gate array
  • controller microcontroller, microprocessor or other electronic components are implemented for executing the voice wake-up method of the above electronic device.
  • a non-transitory computer-readable storage medium including instructions such as a memory 804 including instructions, is also provided.
  • the instructions can be executed by the processor 820 of the device 800 to complete the voice wake-up method of the electronic device.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
  • the above device can also be a part of an independent electronic device.
  • the device can be an integrated circuit (Integrated Circuit, IC) or a chip, where the integrated circuit can be an IC. , or it can be a collection of multiple ICs; the chip can include but is not limited to the following types: GPU (Graphics Processing Unit, graphics processor), CPU (Central Processing Unit, central processing unit), FPGA (Field Programmable Gate Array, can Programming logic array), DSP (Digital Signal Processor, digital signal processor), ASIC (Application Specific Integrated Circuit, application specific integrated circuit), SOC (System on Chip, SoC, system on a chip or system-level chip), etc.
  • GPU Graphics Processing Unit, graphics processor
  • CPU Central Processing Unit, central processing unit
  • FPGA Field Programmable Gate Array, can Programming logic array
  • DSP Digital Signal Processor, digital signal processor
  • ASIC Application Specific Integrated Circuit, application specific integrated circuit
  • SOC System on Chip, SoC, system on a chip or system-level chip
  • the above-mentioned integrated circuit or chip can be used to execute executable instructions (or codes) to implement the above-mentioned voice wake-up method for electronic devices.
  • the executable instructions can be stored in the integrated circuit or chip, or can be obtained from other devices or devices.
  • the integrated circuit or chip includes a processor, a memory, and an interface for communicating with other devices.
  • the executable instruction can be stored in the processor, and when the executable instruction is executed by the processor, the above-mentioned voice wake-up method of the electronic device is implemented; or, the integrated circuit or chip can receive the executable instruction through the interface and transmit it to The processor executes to implement the above voice wake-up method of the electronic device.
  • a computer program product comprising a computer program executable by a programmable device, the computer program having a function for performing the above when executed by the programmable device.
  • the code part of the voice wake-up method of the electronic device.
  • FIG. 7 is a block diagram of an apparatus 1900 for voice wake-up of an electronic device according to an exemplary embodiment.
  • device 1900 may be provided as a server.
  • apparatus 1900 includes a processing component 1922 , which further includes one or more processors, and memory resources represented by memory 1932 for storing instructions, such as application programs, executable by processing component 1922 .
  • the application program stored in memory 1932 may include one or more modules, each corresponding to a set of instructions.
  • the processing component 1922 is configured to execute instructions to perform the above voice wake-up method of the electronic device.
  • Device 1900 may also include a power supply component 1926 configured to perform power management of device 1900, a wired or wireless network interface 1950 configured to connect device 1900 to a network, and an input-output (I/O) interface 1958.
  • Device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server TM , Mac OS X TM , Unix TM , Linux TM , FreeBSD TM or the like.

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Abstract

本公开涉及一种电子设备的语音唤醒方法、装置、存储介质及芯片。电子设备的语音唤醒方法，应用于第一电子设备，所述第一电子设备和多个第二电子设备位于同一个局域网，所述方法包括：基于超声波探测得到第一距离，所述第一距离用于表示所述第一电子设备和用户之间的距离；将所述第一距离发送至服务器，并接收所述服务器反馈的唤醒策略，其中，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与所述用户之间距离最近的电子设备；在检测到唤醒词后，根据所述唤醒策略确定是否对所述唤醒词进行响应。

Description

电子设备的语音唤醒方法、装置、存储介质及芯片 技术领域
本公开涉及通信技术领域，尤其涉及一种电子设备的语音唤醒方法、装置、存储介质及芯片。
背景技术
随着人工智能技术的发展和5G技术的日益成熟，越来越多的电子设备落地到家居环境中，家居环境中拥有多台电子设备的场景已经十分普遍。语音唤醒是智能交互的入口，而多个电子设备则面临多个唤醒响应的问题。当所有设备争抢响应用户的语音指令时，则会给用户造成非常糟糕的使用体验。为了提供一个良好的用户体验，不论家居环境中有多少电子设备，最终只需要有一个电子设备响应用户需求。
相关技术中，在用户语音唤醒时，存在电子设备响应速度较慢的问题。
发明内容
为克服相关技术中存在的问题，本公开提供一种电子设备的语音唤醒方法、装置、存储介质及芯片。
根据本公开实施例的第一方面，提供一种电子设备的语音唤醒方法，应用于第一电子设备，所述第一电子设备和多个第二电子设备位于同一个局域网，所述方法包括：
基于超声波探测得到第一距离，所述第一距离用于表示所述第一电子设备和用户之间的距离；
将所述第一距离发送至服务器，并接收所述服务器反馈的唤醒策略，其中，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与所述用户之间距离最近的电子设备；
在检测到唤醒词后，根据所述唤醒策略确定是否对所述唤醒词进行响应。
可选地，所述根据所述唤醒策略确定是否对所述唤醒词进行响应，包括：
若所述唤醒策略指示所述第一电子设备为所述多个电子设备中与所述用户之间距离最近的电子设备，则响应所述唤醒词。
可选地，所述基于超声波探测得到第一距离，包括：
根据预设的超声波频段信息向所述第一电子设备的所在空间内发射第一声波信号；
接收第二声波信号，其中，所述第二声波信号为所述第一电子设备所在的空间内的人或物体对所述第一声波信号的反射信号；
根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户，如果存在用户，则确定所述第一距离。
可选地，所述根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户，包括：
将所述第二声波信号输入2D MUSIC算法中，以确定所述第一电子设备周围的超声波扰动幅度值；
在所述超声波扰动幅度值为非零时，确定所述第一电子设备所处空间中存在用户。
可选地，所述确定所述第一距离，包括：
根据所述超声波扰动幅度值构建回波二维图像，其中，所述二维图像中，横坐标表示距离，纵坐标表示角度；
根据所述二维图像，对所述声波扰动幅度值进行峰值检测，得到表征声波信号峰值的扰动中心点，并在所述回波二维图像中确定所述扰动中心点的坐标位置，所述扰动中心点用于表示用户在所述预设空间中的位置；
将所述扰动中心点与所述第一电子设备之间的距离作为所述第一距离。
可选地，所述确定所述第一距离之后，所述方法还包括：
实时检测所述第一距离是否发生变化；
如果所述第一距离发生变化，则将最新的第一距离发送至所述服务器。
第二方面，提供一种电子设备的语音唤醒方法，应用于服务器，包括：
获取第一距离，其中，所述第一距离由第一电子设备发送，所述第一距离用于指示所述第一电子设备与用户之间的距离，其中，所述第一电子设备和多个第二电子设备位于同一个局域网；
根据所述第一距离，确定与所述第一电子设备对应的唤醒策略，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备；
向所述第一电子设备发送所述唤醒策略。
可选地，所述根据所述第一距离，确定与所述第一电子设备对应的唤醒策略，包括：
获取第二距离，所述第二距离由所述第二电子设备发送，所述第二距离指示所述第 二电子设备与用户之间的距离；
将所述第一距离和所述第二距离进行比较，根据比较结果，得到所述唤醒策略。
第三方面，提供一种电子设备的语音唤醒装置，应用于第一电子设备，所述第一电子设备和多个第二电子设备位于同一个局域网，所述装置包括：
测量模块，用于基于超声波探测得到第一距离，所述第一距离用于表示所述第一电子设备和用户之间的距离；
第一发送模块，用于将所述第一距离发送至服务器，并接收所述服务器反馈的唤醒策略，其中，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与所述用户之间距离最近的电子设备；
响应模块，用于在检测到唤醒词后，根据所述唤醒策略确定是否对所述唤醒词进行响应。
可选地，所述响应模块采用如下方式根据所述唤醒策略确定是否对所述唤醒词进行响应：
若所述唤醒策略指示所述第一电子设备为所述多个电子设备中与所述用户之间距离最近的电子设备，则响应所述唤醒词。
可选地，所述测量模块采用如下方式基于超声波探测得到第一距离：
根据预设的超声波频段信息向所述第一电子设备的所在空间内发射第一声波信号；
接收第二声波信号，其中，所述第二声波信号为所述第一电子设备所在的空间内的人或物体对所述第一声波信号的反射信号；
根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户，如果存在用户，则确定所述第一距离。
可选地，所述测量模块采用如下方式根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户：
将所述第二声波信号输入2D MUSIC算法中，以确定所述第一电子设备周围的超声波扰动幅度值；
在所述超声波扰动幅度值非零时，确定所述第一电子设备所处空间中存在用户。
可选地，所述测量模块采用如下方式确定所述第一距离：
根据所述超声波扰动幅度值构建回波二维图像，其中，所述二维图像中，横坐标表示距离，纵坐标表示角度；
根据所述二维图像，对所述声波扰动幅度值进行峰值检测，得到表征声波信号峰值的扰动中心点，并在所述回波二维图像中确定所述扰动中心点的坐标位置，所述扰动中心点用于表示用户在所述预设空间中的位置；
将所述扰动中心点与所述第一电子设备之间的距离作为所述第一距离。
可选地，所述确定所述第一距离之后，所述装置还包括：
更新模块，用于实时检测所述第一距离是否发生变化；
如果所述第一距离发生变化，则将最新的第一距离发送至所述服务器。
第四方面，提供一种电子设备的语音唤醒装置，应用于服务器，包括：
获取模块，用于获取第一距离，其中，所述第一距离由第一电子设备发送，所述第一距离用于指示所述第一电子设备与用户之间的距离，其中，所述第一电子设备和多个第二电子设备位于同一个局域网；
确定模块，用于根据所述第一距离，确定与所述第一电子设备对应的唤醒策略，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备；
第二发送模块，用于向所述第一电子设备发送所述唤醒策略。
可选地，所述确定模块采用如下方式根据所述第一距离，确定与所述第一电子设备对应的唤醒策略：
获取第二距离，所述第二距离由所述第二电子设备发送，所述第二距离指示所述第二电子设备与用户之间的距离；
将所述第一距离和所述第二距离进行比较，根据比较结果，得到所述唤醒策略。
根据本公开实施例的第五方面，提供一种电子设备的语音唤醒装置，包括：
存储器，其上存储有计算机程序；
处理器，用于执行所述存储器中的所述计算机程序，以实现本公开第一方面所提供的电子设备的语音唤醒方法的步骤。
根据本公开实施例的第六方面，提供一种电子设备的语音唤醒装置，包括：
存储器，其上存储有计算机程序；
处理器，用于执行所述存储器中的所述计算机程序，以实现本公开第二方面所提供的电子设备的语音唤醒方法的步骤。
根据本公开实施例的第七方面，提供一种计算机可读存储介质，其上存储有计算机 程序指令，该程序指令被处理器执行时实现本公开第一方面所提供的电子设备的语音唤醒方法的步骤。
根据本公开实施例的第八方面，提供一种计算机可读存储介质，其上存储有计算机程序指令，该程序指令被处理器执行时实现本公开第二方面所提供的电子设备的语音唤醒方法的步骤。
根据本公开实施例的第九方面，提供一种芯片，包括处理器和接口；所述处理器用于读取指令以执行本公开第一方面所提供的电子设备的语音唤醒方法的步骤。
本公开的实施例提供的技术方案可以包括以下有益效果：第一电子设备基于超声波探测得到第一电子设备和用户之间的第一距离，将第一距离发送至服务器后，接收服务器反馈的指示在与局域网内所连接的多个电子设备中，第一电子设备是否为与用户之间距离最近的电子设备的唤醒策略，如此，在第一电子设备检测到唤醒词之后，第一电子设备无需将检测到的唤醒词发送至服务器，服务器也无需实时接收电子设备基于唤醒词生成的唤醒请求，并针对接受的唤醒请求做出唤醒结果，而是第一电子设备检测到唤醒词之后，直接根据唤醒策略确定是否需要对唤醒词进行响应，提高了第一电子设备的唤醒响应速度。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1是根据一示例性实施例示出的一种电子设备的语音唤醒方法的流程图。
图2是根据一示例性实施例示出的一种电子设备的语音唤醒方法的流程图。
图3是根据一示例性实施例示出的一种电子设备的语音唤醒方法的交互流程图。
图4是根据一示例性实施例示出的一种电子设备的语音唤醒装置的框图。
图5是根据一示例性实施例示出的一种电子设备的语音唤醒装置的框图。
图6是根据一示例性实施例示出的一种用于电子设备的语音唤醒的装置的框图。
图7是根据一示例性实施例示出的一种用于电子设备的语音唤醒的装置的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
需要说明的是，本申请中所有获取信号、信息或数据的动作都是在遵照所在地国家相应的数据保护法规政策的前提下，并获得由相应装置所有者给予授权的情况下进行的。
相关技术中，在语音唤醒的应用场景下，在用户喊出唤醒词后，例如位于同一个局域网中包括的多个电子设备均会检测到唤醒词，根据唤醒词生成唤醒请求，并将携带唤醒词的声音能量的唤醒请求发送至服务器，服务器获取智能家居设备中包括的所有电子设备发送的唤醒请求，根据每个电子设备发送的唤醒请求中的唤醒词的声音能量，确定针对每个电子设备的唤醒策略，并发送至相应的电子设备，以使电子设备执行唤醒操作或者抑制唤醒操作。
然而本公开的发明人在实现本公开技术方案的过程中发现相关技术中的方案存在以下问题：由于不同电子设备检测到唤醒词的时间不同，且不同的电子设备将携带唤醒词的声音能量的唤醒请求发送至服务器的时间也不同，而服务器只有在接收到所有电子设备的唤醒请求后才能确定对每个电子设备的唤醒策略，服务器等待时间较长，降低了电子设备的唤醒响应速度。
也就是说，所有检测到唤醒词的电子设备需要将唤醒请求发送到服务器，服务器在接收到所有电子设备的唤醒请求后再下发指令，中间涉及到两次信息传输，且设备越多，网络越复杂，传输的时间就会越长，容易出现用户喊唤醒词后需要等待很长时间才能收到电子设备的应答。
有鉴于此，本公开提供了一种电子设备的语音唤醒方法，在本公开的电子设备的语音唤醒方法中，第一电子设备基于超声波探测得到第一电子设备和用户之间的第一距离，将第一距离发送至服务器后，接收服务器反馈的指示在与局域网内所连接的多个电子设备中，第一电子设备是否为与用户之间距离最近的电子设备的唤醒策略，如此，在第一电子设备检测到唤醒词之后，第一电子设备无需将检测到的唤醒词发送至服务器，服务器也无需实时接收电子设备基于唤醒词生成的唤醒请求，并针对接受的唤醒请求做出唤醒结果，而是第一电子设备检测到唤醒词之后，直接根据唤醒策略确定是否需要对唤醒词进行响应，提高了第一电子设备的唤醒响应速度。
图1是根据一示例性实施例示出的一种电子设备的语音唤醒方法的流程图，如图1所示，电子设备的语音唤醒方法用于第一电子设备中，包括以下步骤。
在步骤S11中，基于超声波探测得到第一距离，第一距离用于表示第一电子设备和用户之间的距离。
其中，第一电子设备和多个第二电子设备位于同一个局域网，且第一电子设备包括语音唤醒模块和超声波测距模块。
第一电子设备通过超声波测距模块探测得到第一电子设备和用户之间的第一距离后，将第一距离发送至服务器。
服务器根据第一距离，确定在与局域网内所连接的多个电子设备中，第一电子设备是否为与用户之间距离最近的电子设备后，将唤醒策略反馈至第一电子设备。
之后，在第一电子设备检测到唤醒词后，根据服务器反馈的唤醒策略确定是否对唤醒词进行响应。
一种实施方式中，例如可采用如下方式基于超声波探测得到第一距离：
第一电子设备根据预设的超声波频段信息向第一电子设备的所在空间内发射第一声波信号，第一电子设备接收第一声波信号反射后的第二声波信号，其中，第二声波信号为第一电子设备所在的空间内的人或物体对第一声波信号的反射信号。第一电子设备根据第二声波信号，确定电子设备所在的空间中是否存在用户，如果存在用户，则确定第一距离。确定目标电子设备所处空间位置存在用户时，确定第一目标距离，向服务器发送第一目标距离。
由于在空间位置确定的情况下，超声波信号是稳定、几乎没有扰动的，进而第一电子设备在发射第一声波信号，并通过第一电子设备包括的麦克风阵列采集到第一声波信号反射后的第二声波信号后，根据第二声波信号确定第一电子设备所处空间中，是否存在声波扰动区域，如果存在声波扰动区域，即可以确定目标电子设备所处空间位置存在用户。
一种实施方式中，例如可通过如下方式根据第二声波信号，确定电子设备所在的空间中是否存在用户：
第一电子设备将第二声波信号输入2D MUSIC算法中，通过2D MUSIC算法计算第一电子设备所处位置空间内的超声波扰动幅度，在超声波扰动幅度值为非零时，确定第一电子设备所处空间中存在用户。
在确定第一电子设备所处空间位置存在用户后，可根据超声波扰动幅度值构建回波二维图像，其中，在回波二维图像中，横坐标表示与第一电子设备的距离，纵坐标表示与第一电子设备的角度。
根据二维图像，可对声波扰动幅度值进行峰值检测，得到表征声波信号峰值的扰动中心点，并在回波二维图像中确定扰动中心点的坐标位置，扰动中心点用于表示用户在预设空间中的位置，将扰动中心点与第一电子设备之间的距离作为第一距离。
其中，2D MUSIC算法和峰值算法例如可以是预先写入第一电子设备的芯片中，以根据2D MUSIC算法确定第一电子设备周围的超声波扰动幅度值。
在步骤S12中，将第一距离发送至服务器，并接收服务器反馈的唤醒策略。
此外，第一电子设备基于超声波探测得到与用户之间的第一距离，并向服务器发送第一距离后，可实时检测第一距离是否发生变化，响应于检测到第一距离发生变化，则将最新的第一距离发送至服务器。
进而，服务器可根据最新的第一距离，重新确定最新的第一距离是否为接收的最短距离，并重新确定针对第一电子设备的唤醒策略。
在步骤S13中，在检测到唤醒词后，根据唤醒策略确定是否对唤醒词进行响应。
由此，本公开中，第一电子设备检测到唤醒词之后，可根据服务器反馈的唤醒策略，确定是否对唤醒词进行响应。
例如，如果唤醒策略为指示在与局域网内所连接的多个电子设备中，第一电子设备是与用户之间距离最近的电子设备，则第一电子设备根据该唤醒策略，确定需要对唤醒词进行响应。
例如，如果唤醒策略为指示在与局域网内所连接的多个电子设备中，第一电子设备不是与用户之间距离最近的电子设备，则第一电子设备根据该唤醒策略，确定不需要对唤醒词进行响应。
在本公开的示例性实施例中，第一电子设备基于超声波探测得到第一电子设备和用户之间的第一距离，将第一距离发送至服务器后，接收服务器反馈的指示在与局域网内所连接的多个电子设备中，第一电子设备是否为与用户之间距离最近的电子设备的唤醒策略，如此，在第一电子设备检测到唤醒词之后，第一电子设备无需将检测到的唤醒词发送至服务器，服务器也无需实时接收第一电子设备基于唤醒词生成的唤醒请求，并针对接受的唤醒请求做出唤醒结果，而是第一电子设备检测到唤醒词之后，直接根据唤醒 策略确定是否需要对唤醒词进行响应，提高了第一电子设备的唤醒响应速度。
图2是根据一示例性实施例示出的一种电子设备的语音唤醒方法的流程图，如图2所示，电子设备的语音唤醒方法应用于服务器，包括以下步骤。
在步骤S21中，获取第一距离。
其中，第一距离由第一电子设备发送，第一距离用于指示第一电子设备与用户之间的距离，其中，第一电子设备和多个第二电子设备位于同一个局域网。
在步骤S22中，根据第一距离，确定与第一电子设备对应的唤醒策略。
其中，唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备。
一种实施方式中，根据第一距离，例如可通过如下方式确定与第一电子设备对应的唤醒策略：
获取第二距离，第二距离由第二电子设备发送，第二距离指示所述第二电子设备与用户之间的距离，将所述第一距离和所述第二距离进行比较，根据比较结果，得到针对第一电子设备的唤醒策略。
例如，第一距离小于第二距离，则与第一电子设备对应的唤醒策略为：指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备。或者，在未获取到第二距离时，确定与第一电子设备对应的唤醒策略为：在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备。针对第一电子设备的唤醒策略。
在步骤S23中，向第一电子设备发送唤醒策略。
此外，当服务器接收到第一电子设备发送的更新后的第一距离时，可基于上述确定与第一电子设备对应的唤醒策略的方式，重新确定与第一电子设备对应的唤醒策略。
在本公开的示例性实施例中，第一电子设备基于超声波探测得到第一电子设备和用户之间的第一距离，将第一距离发送至服务器后，服务器根据第一距离，确定与第一电子设备对应的唤醒策略，并将唤醒策略发送至第一电子设备，进而，当第一电子设备检测到唤醒词之后，第一电子设备可直接根据从服务器接收的唤醒策略确定是否需要对唤醒词进行响应，提高了第一电子设备的唤醒响应速度。
图3是根据一示例性实施例示出的一种电子设备的语音唤醒方法的交互流程图，如图3所示，电子设备的语音唤醒方法，包括以下步骤。
在步骤S31中，第一电子设备基于超声波探测得到和用户之间的第一距离。
在步骤S32中，第一电子设备向服务器发送第一距离。
在步骤S33中，服务器获取第一距离，根据第一距离，确定与第一电子设备对应的唤醒策略。
在步骤S34中，服务器向第一电子设备发送唤醒策略。
在步骤S35中，第一电子设备在检测到唤醒词后，根据唤醒策略确定是否对唤醒词进行响应。
图4是根据一示例性实施例示出的一种电子设备的语音唤醒装置400的框图，电子设备的语音唤醒装置，应用于第一电子设备，所述第一电子设备和多个第二电子设备位于同一个局域网，所述装置包括：
测量模块401，用于基于超声波探测得到第一距离，所述第一距离用于表示所述第一电子设备和用户之间的距离；
第一发送模块402，用于将所述第一距离发送至服务器，并接收所述服务器反馈的唤醒策略，其中，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与所述用户之间距离最近的电子设备；
响应模块403，用于在检测到唤醒词后，根据所述唤醒策略确定是否对所述唤醒词进行响应。
可选地，所述响应模块403采用如下方式根据所述唤醒策略确定是否对所述唤醒词进行响应：
若所述唤醒策略指示所述第一电子设备为所述多个电子设备中与所述用户之间距离最近的电子设备，则响应所述唤醒词。
可选地，所述测量模块401采用如下方式基于超声波探测得到第一距离：
根据预设的超声波频段信息向所述第一电子设备的所在空间内发射第一声波信号；
接收第二声波信号，其中，所述第二声波信号为所述第一电子设备所在的空间内的人或物体对所述第一声波信号的反射信号；
根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户，如果存在用户，则确定所述第一距离。
可选地，所述测量模块401采用如下方式根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户：
将所述第二声波信号输入2D MUSIC算法中，以确定所述第一电子设备周围的超声波扰动幅度值；
在所述超声波扰动幅度值非零时，确定所述第一电子设备所处空间中存在用户。
可选地，所述测量模块401采用如下方式确定所述第一距离：
根据所述超声波扰动幅度值构建回波二维图像，其中，所述二维图像中，横坐标表示距离，纵坐标表示角度；
根据所述二维图像，对所述声波扰动幅度值进行峰值检测，得到表征声波信号峰值的扰动中心点，并在所述回波二维图像中确定所述扰动中心点的坐标位置，所述扰动中心点用于表示用户在所述预设空间中的位置；
将所述扰动中心点与所述第一电子设备之间的距离作为所述第一距离。
可选地，所述确定所述第一距离之后，所述装置还包括：
更新模块，用于实时检测所述第一距离是否发生变化；
如果所述第一距离发生变化，则将最新的第一距离发送至所述服务器。
图5是根据一示例性实施例示出的一种电子设备的语音唤醒装置500的框图，电子设备的语音唤醒装置，应用于服务器，包括：
获取模块501，用于获取第一距离，其中，所述第一距离由第一电子设备发送，所述第一距离用于指示所述第一电子设备与用户之间的距离，其中，所述第一电子设备和多个第二电子设备位于同一个局域网；
确定模块502，用于根据所述第一距离，确定与所述第一电子设备对应的唤醒策略，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备；
第二发送模块503，用于向所述第一电子设备发送所述唤醒策略。
可选地，所述确定模块502采用如下方式根据所述第一距离，确定与所述第一电子设备对应的唤醒策略：
获取第二距离，所述第二距离由所述第二电子设备发送，所述第二距离指示所述第二电子设备与用户之间的距离；
将所述第一距离和所述第二距离进行比较，根据比较结果，得到所述唤醒策略。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
本公开还提供一种计算机可读存储介质，其上存储有计算机程序指令，该程序指令被处理器执行时实现本公开提供的电子设备的语音唤醒方法的步骤。
图6是根据一示例性实施例示出的一种用于电子设备的语音唤醒的装置800的框图。例如，装置800可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图6，装置800可以包括以下一个或多个组件：处理组件802，存储器804，电力组件806，多媒体组件808，音频组件810，输入/输出(I/O)的接口812，传感器组件814，以及通信组件816。
处理组件802通常控制装置800的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令，以完成上述的电子设备的语音唤醒方法的全部或部分步骤。此外，处理组件802可以包括一个或多个模块，便于处理组件802和其他组件之间的交互。例如，处理组件802可以包括多媒体模块，以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在装置800的操作。这些数据的示例包括用于在装置800上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电力组件806为装置800的各种组件提供电力。电力组件806可以包括电源管理系统，一个或多个电源，及其他与为装置800生成、管理和分配电力相关联的组件。
多媒体组件808包括在所述装置800和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件808包括一个前置摄像头和/或后置摄像头。当装置800处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变 焦能力。
音频组件810被配置为输出和/或输入音频信号。例如，音频组件810包括一个麦克风(MIC)，当装置800处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中，音频组件810还包括一个扬声器，用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器，用于为装置800提供各个方面的状态评估。例如，传感器组件814可以检测到装置800的打开/关闭状态，组件的相对定位，例如所述组件为装置800的显示器和小键盘，传感器组件814还可以检测装置800或装置800一个组件的位置改变，用户与装置800接触的存在或不存在，装置800方位或加速/减速和装置800的温度变化。传感器组件814可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件814还可以包括加速度传感器，陀螺仪传感器，磁传感器，压力传感器或温度传感器。
通信组件816被配置为便于装置800和其他设备之间有线或无线方式的通信。装置800可以接入基于通信标准的无线网络，如WiFi，2G或3G，或它们的组合。在一个示例性实施例中，通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件816还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置800可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述电子设备的语音唤醒方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器804，上述指令可由装置800的处理器820执行以完成上述电子设备的 语音唤醒方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
上述装置除了可以是独立的电子设备外，也可是独立电子设备的一部分，例如在一种实施例中，该装置可以是集成电路(Integrated Circuit，IC)或芯片，其中该集成电路可以是一个IC，也可以是多个IC的集合；该芯片可以包括但不限于以下种类：GPU(Graphics Processing Unit，图形处理器)、CPU(Central Processing Unit，中央处理器)、FPGA(Field Programmable Gate Array，可编程逻辑阵列)、DSP(Digital Signal Processor，数字信号处理器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、SOC(System on Chip，SoC，片上系统或系统级芯片)等。上述的集成电路或芯片中可以用于执行可执行指令(或代码)，以实现上述的电子设备的语音唤醒方法。其中该可执行指令可以存储在该集成电路或芯片中，也可以从其他的装置或设备获取，例如该集成电路或芯片中包括处理器、存储器，以及用于与其他的装置通信的接口。该可执行指令可以存储于该处理器中，当该可执行指令被处理器执行时实现上述的电子设备的语音唤醒方法；或者，该集成电路或芯片可以通过该接口接收可执行指令并传输给该处理器执行，以实现上述的电子设备的语音唤醒方法。
在另一示例性实施例中，还提供一种计算机程序产品，该计算机程序产品包含能够由可编程的装置执行的计算机程序，该计算机程序具有当由该可编程的装置执行时用于执行上述的电子设备的语音唤醒方法的代码部分。
图7是根据一示例性实施例示出的一种用于电子设备的语音唤醒的装置1900的框图。例如，装置1900可以被提供为一服务器。参照图7，装置1900包括处理组件1922，其进一步包括一个或多个处理器，以及由存储器1932所代表的存储器资源，用于存储可由处理组件1922的执行的指令，例如应用程序。存储器1932中存储的应用程序可以包括一个或一个以上的每一个对应于一组指令的模块。此外，处理组件1922被配置为执行指令，以执行上述电子设备的语音唤醒方法。
装置1900还可以包括一个电源组件1926被配置为执行装置1900的电源管理，一个有线或无线网络接口1950被配置为将装置1900连接到网络，和一个输入输出(I/O)接口1958。装置1900可以操作基于存储在存储器1932的操作系统，例如Windows Server TM，Mac OS X TM，Unix TM，Linux TM，FreeBSD TM或类似。
本领域技术人员在考虑说明书及实践本公开后，将容易想到本公开的其它实施方案。 本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (13)

  1. 一种电子设备的语音唤醒方法，其特征在于，应用于第一电子设备，所述第一电子设备和多个第二电子设备位于同一个局域网，所述方法包括：
    基于超声波探测得到第一距离，所述第一距离用于表示所述第一电子设备和用户之间的距离；
    将所述第一距离发送至服务器，并接收所述服务器反馈的唤醒策略，其中，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与所述用户之间距离最近的电子设备；
    在检测到唤醒词后，根据所述唤醒策略确定是否对所述唤醒词进行响应。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述唤醒策略确定是否对所述唤醒词进行响应，包括：
    若所述唤醒策略指示所述第一电子设备为所述多个电子设备中与所述用户之间距离最近的电子设备，则响应所述唤醒词。
  3. 根据权利要求1所述的方法，其特征在于，所述基于超声波探测得到第一距离，包括：
    根据预设的超声波频段信息向所述第一电子设备的所在空间内发射第一声波信号；
    接收第二声波信号，其中，所述第二声波信号为所述第一电子设备所在的空间内的人或物体对所述第一声波信号的反射信号；
    根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户，如果存在用户，则确定所述第一距离。
  4. 根据权利要求3所述的方法，其特征在于，所述根据所述第二声波信号，确定所述电子设备所在的空间中是否存在用户，包括：
    将所述第二声波信号输入2D MUSIC算法中，以确定所述第一电子设备周围的超声波扰动幅度值；
    在所述超声波扰动幅度值为非零时，确定所述第一电子设备所处空间中存在用户。
  5. 根据权利要求4所述的方法，其特征在于，所述确定所述第一距离，包括：
    根据所述超声波扰动幅度值构建回波二维图像，其中，所述二维图像中，横坐标表示距离，纵坐标表示角度；
    根据所述二维图像，对所述声波扰动幅度值进行峰值检测，得到表征声波信号峰值的扰动中心点，并在所述回波二维图像中确定所述扰动中心点的坐标位置，所述扰动中心点用于表示用户在所述预设空间中的位置；
    将所述扰动中心点与所述第一电子设备之间的距离作为所述第一距离。
  6. 根据权利要求1所述的方法，其特征在于，所述确定所述第一距离之后，所述方法还包括：
    实时检测所述第一距离是否发生变化；
    如果所述第一距离发生变化，则将最新的第一距离发送至所述服务器。
  7. 一种电子设备的语音唤醒方法，其特征在于，应用于服务器，包括：
    获取第一距离，其中，所述第一距离由第一电子设备发送，所述第一距离用于指示所述第一电子设备与用户之间的距离，其中，所述第一电子设备和多个第二电子设备位于同一个局域网；
    根据所述第一距离，确定与所述第一电子设备对应的唤醒策略，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备；
    向所述第一电子设备发送所述唤醒策略。
  8. 根据权利要求7所述的方法，其特征在于，所述根据所述第一距离，确定与所述第一电子设备对应的唤醒策略，包括：
    获取第二距离，所述第二距离由所述第二电子设备发送，所述第二距离指示所述第二电子设备与用户之间的距离；
    将所述第一距离和所述第二距离进行比较，根据比较结果，得到所述唤醒策略。
  9. 一种电子设备的语音唤醒装置，其特征在于，应用于第一电子设备，所述第一 电子设备和多个第二电子设备位于同一个局域网，所述装置包括：
    测量模块，用于基于超声波探测得到第一距离，所述第一距离用于表示所述第一电子设备和用户之间的距离；
    第一发送模块，用于将所述第一距离发送至服务器，并接收所述服务器反馈的唤醒策略，其中，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与所述用户之间距离最近的电子设备；
    响应模块，用于在检测到唤醒词后，根据所述唤醒策略确定是否对所述唤醒词进行响应。
  10. 一种电子设备的语音唤醒装置，其特征在于，应用于服务器，包括：
    获取模块，用于获取第一距离，其中，所述第一距离由第一电子设备发送，所述第一距离用于指示所述第一电子设备与用户之间的距离，其中，所述第一电子设备和多个第二电子设备位于同一个局域网；
    确定模块，用于根据所述第一距离，确定与所述第一电子设备对应的唤醒策略，所述唤醒策略用于指示在与所述局域网内所连接的多个电子设备中，所述第一电子设备是否为与用户之间距离最近的电子设备；
    第二发送模块，用于向所述第一电子设备发送所述唤醒策略。
  11. 一种电子设备的语音唤醒装置，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为：实现权利要求1-6中任一项所述方法的步骤、或实现权利要求7-8中任一项所述方法的步骤。
  12. 一种计算机可读存储介质，其上存储有计算机程序指令，其特征在于，该程序指令被处理器执行时实现权利要求1-6中任一项所述方法的步骤、或实现权利要求7-8中任一项所述方法的步骤。
  13. 一种芯片，其特征在于，包括处理器和接口；所述处理器用于读取指令以执行权利要求1-6中任一项所述的方法。
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CN111833863A (zh) * 2019-04-22 2020-10-27 阿里巴巴集团控股有限公司 语音控制系统、方法和装置以及计算设备和存储介质
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