CN114816026A

CN114816026A - Low-power-consumption standby method, electronic equipment and computer-readable storage medium

Info

Publication number: CN114816026A
Application number: CN202110080151.2A
Authority: CN
Inventors: 蔡双林
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2022-07-29
Anticipated expiration: 2041-01-21
Also published as: CN114816026B

Abstract

The embodiment of the application relates to a low-power-consumption standby method, an electronic device and a computer-readable storage medium. The processor and the target device are powered down under the condition that a first preset condition is met. Wherein the target device comprises a speaker. The microphone collects sound signals and stores the sound signals to a preset storage area. And after the data volume of the sound signals stored in the preset storage area reaches a first data volume threshold value, powering on the processor. The processor performs awakening identification on the sound signal; the wake-up recognition is used to recognize whether wake-up information is included in the sound signal. After the sound signal includes the wake-up information, the target device of the electronic device is powered on. Under the condition that the first preset condition is met, the processor and the target device are powered off, so that power consumption caused by the fact that the processor runs the voice awakening algorithm can be further saved, and the effect of further reducing the power consumption of the electronic equipment is achieved.

Description

Low-power-consumption standby method, electronic equipment and computer-readable storage medium

Technical Field

The present application relates to the field of communications, and in particular, to a low power consumption standby method, an electronic device, and a computer-readable storage medium.

Background

When the electronic device is not used, and in order to respond to the needs of the user at any time, the electronic device enters a standby mode or a sleep mode. Therefore, the power consumption can be kept low, and the normal working mode can be switched to in real time when the user needs the power consumption. When the user needs to use the electronic equipment, the user firstly sends out voice to wake up the electronic equipment. Specifically, when the electronic device is in a standby mode or a sleep mode, a Central Processing Unit (CPU) always runs a voice wake-up algorithm, and when receiving a voice sent by a user, the CPU can recognize a voice wake-up message, and when recognizing the wake-up message, further wake up the device to provide a voice interaction service for the user.

In order to respond to the user's wake-up instantaneously, the CPU of the electronic device needs to run the voice wake-up algorithm continuously. In this way, in the standby mode or the sleep mode of the electronic device, although some devices (e.g., a Power Amplifier (PA), a speaker) are powered off, the CPU still keeps working, and the voice wake-up algorithm is continuously run, thereby causing large power consumption. Therefore, how to further reduce the power consumption of the electronic device in the standby state, increase the endurance time, and respond to the user's needs in real time becomes a demand.

Disclosure of Invention

In order to solve the above technical problem, embodiments of the present application provide a low power consumption standby method, an electronic device, and a computer-readable storage medium. The embodiment of the application can further reduce the power consumption of the electronic equipment in standby, prolong the endurance time, respond to the needs of the user in time, wake up in time and execute the command of the user.

In a first aspect, a low power consumption standby method is provided. The low-power standby method is applied to electronic equipment. The electronic device includes a processor. The electronic device includes: a microphone, a speaker, and a processor. The method comprises the following steps: under the condition that a first preset condition is met, powering down the processor and the target device; wherein the target device comprises the speaker. The microphone collects sound signals and stores the sound signals to a preset storage area. And after the data volume of the sound signals stored in the preset storage area reaches a first data volume threshold value, the processor is powered on. The processor performs awakening identification on the sound signal; the wake-up identification is used for identifying whether the sound signal comprises wake-up information. After the sound signal comprises wake-up information, the target device of the electronic equipment is powered on.

In the embodiment of the present application, when the first preset condition is satisfied, in addition to powering down the target device, such as a speaker, the processor may also be powered down, and english for powering down the processor may be written as shut down. After the processor is powered off, algorithms such as the voice wake-up algorithm and the like are not processed, the computational power is basically zero, and the processor enters a deep idle low-power-consumption state, so that the power consumption of the processor for waking up by running the voice wake-up algorithm can be further saved, namely the effect of further reducing the power consumption of the electronic equipment is realized.

On the other hand, since the device for collecting the voice signal of the user, such as the microphone, is still in the power-on state, the voice signal input by the user can be collected by the device, such as the microphone, even if the electronic device is in the sleep state. And under the condition that the data volume of the sound signals stored in the preset storage area reaches the first data volume threshold value, the processor is powered on to identify whether the awakening information exists or not, so that the requirement of responding to the requirement of the user immediately can be met.

According to the first aspect, in yet another possible implementation, the target device comprises a device on the electronic device other than the processor and the device for capturing the sound signal of the user. In a possible embodiment, the means for capturing the sound signal of the user comprises at least one of a microphone, an analog-to-digital converter (ADC) or a first bus. In one possible embodiment, the target device comprises at least one of a power amplifier, a speaker, an input unit or a display unit.

According to the first aspect, in yet another possible implementation manner, after the wake-up recognition of the sound signal by the processor, the method further includes: and powering down the processor after the awakening information is not included in the sound signal. In this way, power consumption can be further saved.

According to the first aspect as such or any one of the above implementation manners of the first aspect, in a further possible implementation manner, after the wake-up recognition of the sound signal by the processor, the method further includes: and deleting the sound signals stored in the storage area after the sound signals do not include the awakening information. In this way, storage space can be reserved for the subsequently collected sound signals.

According to the first aspect, or any one of the above implementation manners of the first aspect, in yet another possible implementation manner, the first preset condition includes: the electronic equipment does not play audio data through the loudspeaker within the first preset time length. In yet another possible implementation manner, the electronic device is in an unused state for a first preset time period. In a further possible embodiment, the first preset condition includes: and the electronic equipment is in a non-playing state and a non-human-computer interaction state within a first preset time length. In a further possible embodiment, the first preset condition may include: and the electronic equipment does not play the service within the first preset time length, and no voice interaction service runs. The first preset time period in the embodiment of the present application may be set manually, for example, may be set to 5 minutes. Therefore, the electronic equipment can be estimated not to be used by the user in the near future under the condition of not using the electronic equipment for a long time, and then the electronic equipment enters the sleep mode, so that the power consumption of the electronic equipment can be reduced.

According to the first aspect, or any one of the above implementation manners of the first aspect, in yet another possible implementation manner, the acquiring and storing the sound signal into a preset storage area includes: the sound signal is collected by a microphone. And storing the collected sound signals to a buffer area corresponding to the first bus. The first bus comprises a bus coupling the microphone and a processor. After the data volume of the sound signal stored in the preset storage area reaches a first data volume threshold value, the processor is powered on, and the method comprises the following steps: triggering an interrupt signal through the first bus after the data amount stored in the cache region corresponding to the first bus reaches a first data amount threshold, wherein the interrupt signal is used for electrifying the processor. Because the processor is in the power-off state when the electronic device is in the sleep mode, that is, the processor does not run the voice wake-up algorithm, and the first bus and the microphone are still in the power-on state at this time, the acquired data can be stored in the cache region corresponding to the first bus first, and after the data is stored to a certain amount, the processor is powered on, so that the processor runs the wake-up algorithm to perform wake-up identification.

According to the first aspect, or any one of the foregoing implementation manners of the first aspect, in a further possible implementation manner, the triggering, by the first bus, an interrupt signal after an amount of data stored in a cache region corresponding to the first bus reaches a first data amount threshold includes: triggering an interrupt signal through the first bus after a cache region corresponding to the first bus is full. Thus, the scheme can be further simplified, and the data processing amount of the first bus can be reduced.

According to the first aspect, or any one of the above implementation manners of the first aspect, in yet another possible implementation manner, the acquiring and storing the sound signal into a preset storage area includes: the sound signal is collected by a microphone. Storing the collected sound signals to a buffer area corresponding to the first bus; the first bus comprises a bus coupling the microphone and a processor. After the data volume stored in the cache region corresponding to the first bus reaches a second data volume threshold value, the sound signal stored in the cache region corresponding to the first bus is transferred to a second storage region; the second data volume threshold is less than the first data volume threshold. And triggering an interrupt signal after the data volume stored in the second storage area reaches a first data volume threshold, wherein the interrupt signal is used for electrifying the processor. Because the capacity of the buffer area corresponding to the first bus may be small, for example, the data of the sound signal of only 100ms may be stored, in this way, the data stored in the buffer area of the first bus may be transferred to the second storage area, so that the duration of low power consumption of the processor may be prolonged under the condition that the storage space of the buffer area corresponding to the first bus is small, and thus the power consumption may be saved.

According to the first aspect, or any one of the foregoing implementation manners of the first aspect, in a further possible implementation manner, after the buffer corresponding to the first bus is full, the sound signal stored in the buffer corresponding to the first bus is transferred to a second storage area through DMA. By executing the action through the DMA, the power consumption of the electronic device can be reduced as much as possible on the premise of implementing the scheme provided by the embodiment of the application.

According to the first aspect, or any one of the above implementation manners of the first aspect, in a further possible implementation manner, the interrupt signal is triggered through the DMA or the first bus after the amount of data stored in the second storage area reaches a first data amount threshold. Because the DMA or the first bus is in a power-on state, the power-on of the processor is triggered in the mode, and the situation that the electronic equipment is subjected to large power consumption can be avoided.

In a second aspect, an electronic device is provided. The electronic device includes: a processor, a memory, a microphone, a speaker; wherein the memory stores a computer-executable program that, when executed by the processor, causes the electronic device to: under the condition that a first preset condition is met, powering down the processor and the target device; wherein the target device comprises the speaker; the microphone collects sound signals and stores the sound signals to a preset storage area; after the data volume of the sound signals stored in the preset storage area reaches a first data volume threshold value, powering on the processor; the processor performs awakening identification on the sound signal; the awakening identification is used for identifying whether the sound signal comprises awakening information or not; after the sound signal comprises wake-up information, the target device of the electronic equipment is powered on.

According to the second aspect, in yet another possible implementation manner, the electronic device is further configured to: after the sound signal does not include the wake-up information, the processor powers down.

According to the second aspect, in a further possible implementation manner, the first preset condition includes: the electronic equipment does not play audio data through the loudspeaker within the first preset time length.

According to the second aspect, in yet another possible implementation manner, the electronic device is specifically configured to: storing the collected sound signals to a buffer area corresponding to the first bus; the first bus comprises a bus to which the microphone is coupled to a processor; triggering an interrupt signal through the first bus after the data amount stored in the cache region corresponding to the first bus reaches a first data amount threshold, wherein the interrupt signal is used for electrifying the processor.

According to the second aspect, in yet another possible implementation manner, the electronic device is specifically configured to: triggering an interrupt signal through the first bus after a cache region corresponding to the first bus is full.

According to the second aspect, in yet another possible implementation manner, the electronic device is specifically configured to: storing the collected sound signals to a buffer area corresponding to the first bus; the first bus comprises a bus to which the microphone is coupled to a processor; after the data volume stored in the cache region corresponding to the first bus reaches a second data volume threshold value, the sound signal stored in the cache region corresponding to the first bus is transferred to a second storage region; the second data volume threshold is less than the first data volume threshold; and triggering an interrupt signal after the data volume stored in the second storage area reaches a first data volume threshold, wherein the interrupt signal is used for electrifying the processor.

According to the second aspect, in yet another possible implementation manner, the electronic device is specifically configured to: and after the cache region corresponding to the first bus is full, transferring the sound signal stored in the cache region corresponding to the first bus to a second storage region through a Direct Memory Access (DMA).

According to the second aspect, in yet another possible implementation form, the electronic device includes a sound box.

For technical effects and related descriptions corresponding to any implementation manner in the second aspect and the second aspect, reference may be made to the technical effects corresponding to any implementation manner in the first aspect and the first aspect, and details are not described here.

In a third aspect, a computer-readable storage medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any of the possible implementations of the first aspect described above, or causes the computer to perform the method of any of the implementations of the first aspect described above.

For technical effects corresponding to any one implementation manner of the third aspect and the third aspect, reference may be made to the technical effects corresponding to any one implementation manner of the first aspect and the first aspect, and details are not repeated here.

In a fourth aspect, there is provided a computer program product comprising: a computer program (also referred to as code, or instructions), which when executed, causes a computer to perform, or causes a computer to perform, a method of any of the possible implementations of the first aspect described above.

For a technical effect corresponding to any one implementation manner of the fourth aspect and the fourth aspect, reference may be made to the technical effect corresponding to any one implementation manner of the first aspect and the first aspect, and details are not described here.

Drawings

Fig. 1 is a schematic view of a scenario of a low power consumption standby method according to an embodiment of the present application;

fig. 2 is a schematic hardware structure diagram of an electronic device according to an embodiment of the present application;

fig. 3 is a schematic flowchart of a low power consumption standby method of an electronic device according to an embodiment of the present disclosure;

fig. 4 is a schematic flowchart of another low-power standby method for an electronic device according to an embodiment of the present application;

fig. 5 is a flowchart illustrating a low power consumption standby method of an electronic device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

The technical solution in the embodiments of the present application is described below with reference to the drawings in the embodiments of the present application. In the description of the embodiments of the present application, the terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the specification of the present application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of the present application, "at least one", "one or more" means one or more than two (including two). The term "and/or" is used to describe an association relationship that associates objects, meaning that three relationships may exist; for example, a and/or B, may represent: a alone, both A and B, and B alone, where A, B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise. The term "coupled" includes both direct and indirect connections, unless otherwise noted. "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described herein as "exemplary" or "such as" is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Fig. 1 is a scene schematic diagram of a low power consumption standby method according to an embodiment of the present application. As shown in fig. 1, an electronic device 100 is included in the scenario. The electronic device 100 may be an intelligent device that provides certain services to a user. The electronic device 100 may have a function of transceiving audio signals, that is, the electronic device 100 has an audio circuit embedded therein, including a speaker and a microphone. The electronic device 100 may be a physical device, such as a sound box (also referred to as a smart sound box), a mobile phone or a notebook computer, or a home appliance such as a television, or a wearable device such as a smart bracelet or a watch, and so on. The electronic device 100 may also be a logic device. The logic device can be understood as a logic unit/module with audio transceiving function, without limitation to the type, performance and the like of hardware equipment. For example, the logic may be one or more logical units/modules within one or more hardware devices.

In this embodiment, the electronic device 100 may power down a processor (e.g., the processor 102 in fig. 2 described below) running the wake-up algorithm and a target device (which may include a speaker, for example) when certain conditions are met (e.g., the electronic device is not used for a long time), so as to further reduce power consumption. After receiving a certain amount of sound signals, the processor may be powered on first to run a voice wake-up algorithm, so as to identify the wake-up information of the received sound signals. The wake-up recognition may be understood as recognizing wake-up information in the sound signal, and the wake-up information is usually preset. For example, the preset wake-up information is "Xiao Yi". When a voice including "art and art" is received, it may be determined that the wake-up information is detected. When the wake-up information is recognized, other devices of the electronic device, such as a speaker, etc., are powered on to provide services to the user, such as voice interaction, etc. The electronic device 100 in the embodiment of the present application may further perform voice instruction recognition, and the voice instruction recognition may be understood as recognizing a voice instruction (or command), such as "play a song with blue and white porcelain", "switch a next song", and the like.

Exemplarily, fig. 2 shows a hardware structure diagram of the electronic device 100 provided in the embodiment of the present application. As shown in fig. 2, the electronic device 100 may include a processor 102, a first bus 1021, a DMA1022, a memory 103, a buffer 104 corresponding to the first bus, an audio module, a microphone 106 (where the microphone 106 may be a microphone), a speaker 108, an input unit 109, a display unit 110, a Universal Serial Bus (USB) interface 111, a power management module 112, a battery 113, an antenna 115, an antenna 116, a communication module 114, the speaker 108, the microphone 106, the input unit 109, and the display unit 110, which are illustrated in fig. 2 by the antenna 115 and the antenna 116, and optionally may further include other antennas.

The processor 102 may include one or more processing units, for example, the processor 102 may include an Application Processor (AP), a modem processor, a Graphics Processing Unit (GPU), an Image Signal Processor (ISP), a controller, a memory, a video codec, a Digital Signal Processor (DSP), a baseband processor, and/or a neural-Network Processing Unit (NPU), among others. The different processing units may be separate devices or may be integrated into one or more processors. The controller can be a neural center and a command center of the electronic device. The controller can generate an operation control signal according to the instruction operation code and the timing signal to complete the control of instruction fetching and instruction execution.

The memory 103 may be used to store computer-executable program code, which includes instructions. The memory 103 may include a program storage area and a data storage area.

The storage program area may store an operating system, an application program or algorithm required by at least one function (e.g., an application program or algorithm required by a voice wake-up function, an application program or algorithm required by a sound play function), and the like. The data storage area may store data created during the use of the electronic device (e.g., storing sound signals collected by the microphone 106, etc.), and the like.

Further, the memory 103 may include a high-speed random access memory, and may further include a nonvolatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (UFS), and the like. The processor 102 executes various functional applications of the electronic device and data processing by executing instructions stored in the memory 103 and/or instructions stored in a memory provided in the processor.

The processor 102 may execute the wake-up method provided by the embodiments of the present application, and the processor may interact with the user in response to the sound signal input by the user. When the processor 102 integrates different devices, such as a CPU and a GPU, the CPU and the GPU may cooperate to execute the operation prompting method provided by the embodiment of the present application, for example, part of the algorithm in the operation prompting method is executed by the CPU, and another part of the algorithm is executed by the GPU, so as to obtain faster processing efficiency. In some embodiments, the voice wake-up algorithm mentioned in the embodiments of the present application may be executed by the CPU.

In some embodiments, processor 102 may include one or more interfaces. For example, the interface may include an integrated circuit (I2C) interface, an inter-integrated circuit built-in audio (I2S) interface, a Pulse Code Modulation (PCM) interface, a Time Division Multiplexing (TDM) interface, a pulse time division multiplexing (PDM) interface, a universal asynchronous receiver/transmitter (UART) interface, a Mobile Industry Processor Interface (MIPI), a general-purpose input/output (GPIO) interface, a user identification module (SIM) interface, and/or a USB serial bus (GPIO) 111 interface.

The I2S interface may be used for audio communication. In some embodiments, processor 102 may include multiple sets of I2S buses. The processor 102 may be coupled to the audio module via an I2S bus to enable communication between the processor 102 and the audio module. In some embodiments, the audio module may communicate audio signals to the communication module 114 via the I2S interface, enabling answering of calls via a bluetooth headset. I2S may transport 2 channels of data.

The PCM interface may also be used for audio communication, sampling, quantizing and encoding analog signals. In some embodiments, the audio module and the communication module 114 may be coupled by a PCM bus interface. In some embodiments, the audio module may also transmit audio signals to the communication module 114 through the PCM interface, so as to implement the function of answering a call through the bluetooth headset. Both the I2S interface and the PCM interface may be used for audio communication. PCM can transmit up to 16 channels of data, and a TDM interface (for example, a 7-microphone matrix of some voice smart speakers, which is generally data transmitted by TDM) can be used to simultaneously transmit 7 microphone inputs and more than 3 audio feedback signals.

The PDM interface is a modulation method for representing an analog signal by a digital signal, and is widely applied to a digital microphone.

The I2C interface is a bi-directional synchronous serial bus that includes a serial data line (SDA) and a Serial Clock Line (SCL). In some embodiments, processor 102 may include multiple sets of I2C buses. The processor 102 may be coupled to the touch sensor 180K, charger, flash, camera 193, etc. via different I2C bus interfaces. For example: the processor 102 may be coupled to the touch sensor 180K via an I2C interface, such that the processor 102 and the touch sensor 180K communicate via an I2C bus interface to implement a touch function of the electronic device.

The GPIO interface may be configured by software. The GPIO interface may be configured as a control signal and may also be configured as a data signal. In some embodiments, a GPIO interface may be used to connect the processor 102 with the display unit 110, the communication module 114, the audio module, and the like. The GPIO interface may also be configured as an I2C interface, an I2S interface, a UART interface, a MIPI interface, and the like.

A first bus 1021 is defined in the embodiments of the present application for coupling the processor 102 with an audio module to enable communication between the processor 102 and the audio module. The first bus 1021 may also be referred to as a microphone array bus. The first bus 1021 may be, for example, an I2S bus, a PCM bus, a PDM bus, a TDM bus, and the like.

In the embodiment of the present application, a storage area is further provided, and the storage area can be used as the first storage area 104. The first storage area 104 may be used to store sound signals collected by a microphone (array) 106 in the embodiment of the present application. The embodiment of the application relates to a first storage area and a second storage area. The first storage area may be a buffer area corresponding to the first bus, and the second storage area may be a storage area in the memory 103, for example, a storage area in a data storage area in the memory 103. As shown in fig. 2, the DMA1022 may be integrated in the processor 102 and may be used to transfer data stored in the first memory area 104 to the second memory area 103 so that the processor 102 can process the data in the second memory area 103.

It should be understood that the interface connection relationship between the modules illustrated in the embodiments of the present application is only an exemplary illustration, and does not constitute a limitation on the structure of the electronic device. In other embodiments of the present application, the electronic device may also adopt different interface connection manners or a combination of multiple interface connection manners in the above embodiments.

The electronic device 100 may implement an audio function, such as music playing, through the speaker 108, the microphone 106, an audio module (the audio module may include devices such as an analog-to-digital converter (ADC) 105 and a Power Amplifier (PA) 107), and an application processor).

The audio module is used to convert digital audio information into an analog audio signal (e.g., which may be output via ADC105) and also to convert an analog audio input into a digital audio signal. The audio module may also be used to encode and decode audio signals. In some embodiments, the audio module may be disposed in the processor 110, or some functional modules of the audio module may be disposed in the processor 102.

The speaker 108, also called "horn", is used to convert electrical audio signals into sound signals. The electronic device may listen to music through speaker 108 or to a hands-free conversation.

The microphone 106, also known as a "microphone", is used to convert sound signals into electrical signals. When sending voice information, the user may make a sound through his mouth, with the sound signal being transmitted to the microphone 106. The electronic device may be provided with one microphone or a plurality of microphones, which may also be referred to as microphones.

The input unit 109 may be used to receive character information and signals input by a user. Alternatively, the input unit 109 may include a touch panel and other input devices (e.g., function keys).

The display unit 110 is used to present contents such as a user interface or a play interface of a multimedia file. The display unit 110 may include a display panel. Alternatively, the display panel may be configured in the form of a Liquid Crystal Display (LCD), an organic light-emitting diode (OLED), or the like.

The communication module 114 is used for realizing data communication between the electronic device 100 and other devices. For example, the electronic device 100 may query the server for content corresponding to the user command, and perform voice interaction with the user according to the query result. Optionally, the communication unit 101 may include a wireless communication module and/or a mobile communication module. Illustratively, the wireless communication module may include, but is not limited to, a wireless fidelity (WiFi) module, a bluetooth (bluetooth) module, and/or the like.

As shown in fig. 2, the electronic device 100 may receive a charging input of a wired charger through the USB interface 111. In some wireless charging embodiments, the wireless charging input may also be received through a wireless charging coil of the electronic device. For example, the battery 113 may be charged, and the power management module 112 may be used to supply power to the electronic device.

Those skilled in the art will appreciate that the structure of the electronic device shown in fig. 2 does not constitute a limitation of the electronic device, and the electronic device provided in the embodiments of the present application may include more or less components than those shown, or may combine some components, or may arrange different components. The various devices shown in the figures may be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and/or application specific integrated circuits.

Based on the above, fig. 3 is a schematic flowchart of a low power consumption standby method of an electronic device according to an embodiment of the present application. The method may be performed by the electronic device 100 of the preceding, or by a chip internal to the electronic device 100. As shown in fig. 3, the method includes:

in step S201, when the electronic device meets a first preset condition, the processor and the target device are powered off. Wherein the target device comprises at least one of a power amplifier, a speaker, an input unit, or a display unit.

In a possible embodiment, the first preset condition comprises: the electronic equipment does not play audio data through the loudspeaker within the first preset time length. In a further possible embodiment, the first preset condition includes: and the electronic equipment is in an unused state within a first preset time length. In a further possible embodiment, the first preset condition includes: and the electronic equipment is in a non-playing state and a non-human-computer interaction state within a first preset time length. In a further possible embodiment, the first preset condition may include: and the electronic equipment does not play the service within the first preset time length, and no voice interaction service runs. The first preset time period in the embodiment of the present application may be set manually, for example, may be set to 5 minutes.

In step S211, in one possible embodiment, when the first preset condition is satisfied, the electronic device may be put into a sleep state. When the electronic device is in the sleep mode, the devices (such as the microphone 106, the ADC105 and the first bus 1021) for collecting the voice signal of the user are in a power-on state (or an operating state) so as to collect the voice signal of the user at any time. And other devices (for example, the power amplifier 107, the speaker 108, the input unit 109, the display unit 110, and the like) except for the "devices for collecting the user's voice signal (for example, the microphone 106, the ADC105, and the first bus 1021)" are in a power-down state. It should be noted that, in the embodiment of the present application, when the electronic device is in the sleep state, the processor is also in the power-down state. In the embodiment of the present application, english in a power-down state of the processor may be written as shut down. The processor is in a power-off state, and the processor does not need to run a voice wake-up algorithm, so that the power consumption can be further reduced.

In the embodiment of the present application, when the first preset condition is satisfied, in addition to powering down the target device, such as a speaker, the processor may also be powered down, and english for powering down the processor may be written as shut down. After the processor is powered off, algorithms such as the voice wake-up algorithm and the like are not processed, the computational power is basically zero, and the processor enters a deep idle low-power-consumption state, so that the power consumption caused by the fact that the processor runs the voice wake-up algorithm can be further saved, namely the effect of further reducing the power consumption of the electronic equipment is achieved.

Step S202, collecting sound signals through a microphone, and storing the sound signals into a preset storage area.

Step S203, after the data volume of the sound signal stored in the preset storage area reaches a first data volume threshold value, the processor is powered on, and the sound signal is awakened and identified through the processor. The wake-up identification is used to identify whether wake-up information is included in the sound signal.

In step S204, is the processor able to identify the wake-up information from the sound signal stored in the preset storage area?

If so, go to step S205;

if not, go to step S208.

According to the embodiment of the application, the electronic equipment can perform awakening identification based on the algorithm model. In one possible embodiment, the electronic device acquires a sound signal and performs feature extraction on the sound signal to obtain a sentence. The resulting statement is assumed to be "Xiao Yi". Further, the recognized sentence is compared with a preset sentence, and the similarity is obtained. The preset sentence is preset wake-up information, for example, the preset wake-up information is "Xiao Yi". Determining that the sound signal includes the wake-up information based on a similarity between the recognized sentence and the preset sentence. Optionally, when the similarity is greater than the similarity threshold, it may be determined that the received sound signal includes the wake-up information; otherwise, it is determined that the received sound signal does not include the wake-up information.

It should be noted that the voice wakeup algorithm may also have other names, and the embodiments of the present application are not limited.

Step S205, after the sound signal includes the wake-up information, the target device of the electronic device is powered on.

Specifically, after the sound signal includes the wake-up message, all devices (e.g., speaker 108) currently in the powered-down state are powered up.

In this embodiment of the application, a state of the electronic device when the target device is powered on may be referred to as a state of the electronic device after being awakened. In yet another possible embodiment, all components of the electronic device are powered on when the electronic device is awakened.

In step S206, the processor sends a first instruction, where the first instruction is used to respond to the wake-up message of the user, for example, the speaker may be made to emit a voice "on the fly".

In step S207, the speaker issues a response to be heard by the user.

When the user hears the response from the speaker, it can be determined that the electronic device is successfully awakened, or it can be understood that all devices of the electronic device are in a power-on state.

In step S208, after the sound signal does not include the wake-up information, the processor is powered down.

In step S208, the currently stored sound signal is also deleted from the preset storage area to make room for the collected sound signal.

Various embodiments can be included in the above steps S202 and S203, and the following description is provided by fig. 4 and 5.

As shown in fig. 4, one possible implementation of step S202 may include step S211:

step S211, the electronic device collects a sound signal through a microphone, and stores the collected sound signal in a first storage area, where the first storage area may be a buffer area corresponding to the first bus.

In a possible embodiment, the first bus comprises a bus coupling the microphone and the processor, enabling communication between the processor and the audio module. The first bus may be the first bus 1021 in fig. 2, and the details of the first bus 1021 in fig. 2 can be referred to.

As shown in fig. 4, one possible implementation of step S203 may include step S212:

step S212, after the data amount of the sound signal stored in the buffer corresponding to the first bus reaches a first data amount threshold, triggering an interrupt signal through the first bus, where the interrupt signal is used to trigger the processor to be powered on.

In a possible embodiment, in step S212, it may be determined whether the buffer corresponding to the first bus is full. After the cache area corresponding to the first bus is full, an interrupt signal can be triggered through the first bus.

In another possible implementation manner, in step S212, it may also be determined whether the duration of the sound signal stored in the buffer corresponding to the first bus reaches a first duration threshold, and if so, an interrupt signal may be triggered. For example, whether the buffer corresponding to the first bus stores a sound signal for 5 seconds or not may be referred to as audio data. When the sampling rate is fixed, there is a corresponding relationship between the duration of the sound signal collected by the microphone and the data amount of the sound signal, for example, if the sound signal collected by the microphone for 1 second occupies 216 bytes, the sound signal collected for 1 second occupies 2 × 216 bytes.

Generally, the processor does not access the data in the cache region corresponding to the first bus, so in the manner shown in fig. 4, after the processor is powered on, the processor or the like (for example, the processor 102 or the DMA1022) may first migrate the data to the memory (for example, the memory 103 in fig. 2) that the processor will access, and then the processor reads the data from the memory to perform the wake-up identification.

As shown in fig. 5, one possible implementation of step S202 may include steps S221 and S222:

step S221, the electronic device collects a sound signal through a microphone, and stores the collected sound signal in a first storage area, where the first storage area may be a buffer area corresponding to the first bus.

The description of the first bus is referred to the foregoing description, and is not repeated here.

In step S222, after the data amount stored in the cache region corresponding to the first bus reaches a second data amount threshold, the sound signal stored in the cache region corresponding to the first bus may be transferred to a second storage region through Direct Memory Access (DMA). The second data volume threshold is less than the first data volume threshold.

The second storage area may be a DDR. The second storage area may be a storage area in the storage 103 in fig. 2, for example, a storage area in a storage data area in the storage 103. The related contents of the second storage area can be referred to the related description in fig. 2, and are not described in detail herein. Alternatively, the first bus and the DMA comprised in the electronic device may be integrated on the processor.

As shown in fig. 5, one possible implementation of step S203 may include step S223:

in step S223, after the data amount stored in the second storage area reaches the first data amount threshold, an interrupt signal is triggered through the DMA or the first bus, where the interrupt signal is used to power on the processor.

In a possible embodiment, in step S223, it may be determined whether the amount of data stored in the buffer corresponding to the first bus reaches the second threshold by the DMA. An interrupt signal may be triggered by the DMA after the amount of data stored in the second memory area reaches a first data amount threshold.

In another possible embodiment, in step S223, it may be determined whether the amount of data stored in the buffer corresponding to the first bus reaches the second data amount threshold. In this manner, after the first bus cache region is full of data, the data in the first bus cache region is transferred to the second memory region by DMA. The first bus can count the DMA transfer times, and the data volume transferred each time is the maximum data volume which can be stored in the first bus cache region, so that the total data volume stored in the second memory region can be determined. Furthermore, after the total data amount stored in the second storage area reaches the first data amount threshold, the interrupt signal may be triggered.

In the mode shown in fig. 5, since the capacity of the buffer area corresponding to the first bus may be small, for example, the buffer area may only store data of a sound signal of 100ms, the data stored in the buffer area of the first bus may be transferred to the second storage area in the mode shown in fig. 5, so that the duration of low power consumption of the processor may be prolonged under the condition that the storage space of the buffer area corresponding to the first bus is small, and thus the power consumption may be saved.

All or part of the above embodiments provided in the present application may be freely and arbitrarily combined with each other.

The communication method provided by the embodiment of the application is suitable for the following electronic equipment.

Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 2000 may also be the electronic device 100 of fig. 2 described above. By way of example, the electronic device 2000 includes at least one processor 2010, memory 2020, and a microphone 2030. The processor 2010 is coupled to the memory 2020, which in this embodiment may be a communication link, an electrical link, or other link. In particular, memory 2020 is used for storing program instructions. The processor 2010 is configured to call the program instructions stored in the memory 2020, so that the electronic device 2000 executes the steps performed by the electronic device in the low power standby method provided by the embodiment of the present application.

In one possible embodiment, the memory stores a computer-executable program that, when executed by the processor 2010, causes the electronic device 2000 to: in the case where the first preset condition is satisfied, the processor 2010 and the target device are powered down. The microphone 106 collects the sound signal, and the sound signal is stored in a preset storage area. After the data amount of the sound signal stored in the preset storage area reaches a first data amount threshold, the processor 2010 is powered on. Performing wake-up recognition on the sound signal by the processor 2010; the wake-up identification is used for identifying whether the sound signal comprises wake-up information. After the sound signal includes the wake-up information, the target device of the electronic apparatus 2000 is powered on.

In one possible embodiment, when the processor 2010 is powered off, after the data amount of the sound signal stored in the preset storage area reaches the first data amount threshold, an interrupt signaling may be sent through the first bus, where the interrupt signaling is used to trigger the processor to be powered on.

For a description of the processor 2010, reference may be made to the description of the processor 102 in the foregoing fig. 2 and the foregoing method. For a description of the microphone 2030, reference may be made to the description of the microphone 106 in fig. 2 and the method described above.

The memory 2020 in this embodiment may include the aforementioned memory 103 in fig. 2, and the cache region 104 corresponding to the first bus. The description of the memory 2020 can refer to the description of the memory 103 and the corresponding buffer 104 of the first bus in the foregoing fig. 2 and the foregoing method.

Further, the electronic device 2000 may further comprise a bus system, wherein the processor 2010, the memory 2020, and the microphone 2030 may be connected via the bus system. The bus system may include the first bus in the foregoing fig. 2 and the foregoing method.

It should be understood that the electronic device 2000 may be configured to implement the communication method provided in the embodiments of the present application, and reference may be made to the above for relevant features, which are not described herein again.

In some embodiments, the electronic device 2000 may further include a module such as a speaker. For related content, reference may be made to the foregoing content of fig. 2 and method item portions, which are not described herein again.

The present application provides a computer program product containing instructions, which when run on an electronic device, causes the electronic device to perform the steps performed by the electronic device in the communication method provided by the embodiments of the present application.

The application provides a computer-readable storage medium, which includes instructions that, when executed on an electronic device, cause the electronic device to perform the steps performed by the electronic device in the communication method provided by the embodiment of the application.

Those skilled in the art will clearly understand that the embodiments of the present application can be implemented in hardware, or in hardware and software. When implemented using hardware and software, the functions described above may be stored on a computer-readable medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially implemented or make a contribution to the prior art, or all or part of the technical solutions may be implemented in the form of a software product stored in a storage medium and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) or a processor to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: flash memory, removable hard drive, read only memory, random access memory, magnetic or optical disk, and the like.

The above description is only a specific implementation of the embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the embodiments of the present application should be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. An electronic device, characterized in that the electronic device comprises:

a microphone;

a speaker;

a processor;

a memory storing a computer-executable program that, when executed by the processor, causes the electronic device to perform the steps of:

under the condition that a first preset condition is met, powering down the processor and the target device; wherein the target device comprises the speaker;

the microphone collects sound signals and stores the sound signals to a preset storage area;

after the data volume of the sound signals stored in the preset storage area reaches a first data volume threshold value, powering on the processor;

the processor performs awakening identification on the sound signal; the awakening identification is used for identifying whether the sound signal comprises awakening information or not;

after the sound signal comprises the wake-up information, the target device is powered on.

2. The electronic device of claim 1, wherein the electronic device is further to:

after the sound signal does not include the wake-up information, the processor powers down.

3. The electronic device of claim 1 or 2, wherein the first preset condition comprises:

the electronic equipment does not play audio data through the loudspeaker within the first preset time length.

4. The electronic device of any of claims 1-3, wherein the electronic device further comprises a first bus;

storing the sound signal into a preset storage area; the method comprises the following steps: storing the collected sound signals to a buffer area corresponding to the first bus; the first bus comprises a bus to which the microphone is coupled to a processor;

after the data volume of the sound signals stored in the preset storage area reaches a first data volume threshold value, the processor is powered on; the method comprises the following steps: triggering an interrupt signal through the first bus after the data volume stored in the cache region corresponding to the first bus reaches a first data volume threshold value, and powering on the processor after the processor receives the interrupt signal.

5. The electronic device of claim 4, wherein after the amount of data stored in the buffer corresponding to the first bus reaches a first data amount threshold, an interrupt signal is triggered via the first bus; the method comprises the following steps:

triggering an interrupt signal through the first bus after a cache region corresponding to the first bus is full.

6. The electronic device of any of claims 1-3, wherein the electronic device further comprises a first bus;

after the data volume of the sound signals stored in the preset storage area reaches a first data volume threshold value, powering on the processor; the method comprises the following steps: after the data volume stored in the cache region corresponding to the first bus reaches a second data volume threshold value, the sound signal stored in the cache region corresponding to the first bus is transferred to a second storage region; the second data volume threshold is less than the first data volume threshold; and triggering an interrupt signal after the data volume stored in the second storage area reaches a first data volume threshold, and powering on the processor after the processor receives the interrupt signal.

7. The electronic device of claim 6, wherein after the amount of data stored in the buffer corresponding to the first bus reaches a second data amount threshold, the audio signal stored in the buffer corresponding to the first bus is transferred to a second storage area; the method comprises the following steps:

and after the cache region corresponding to the first bus is full, transferring the sound signal stored in the cache region corresponding to the first bus to a second storage region through a Direct Memory Access (DMA).

8. The electronic device of any of claims 1-7, wherein the electronic device comprises a sound box.

9. A low-power consumption standby method is applied to an electronic device, and the electronic device comprises: a microphone, a speaker, and a processor; the method comprises the following steps:

after the sound signal comprises wake-up information, the target device of the electronic equipment is powered on.

10. The method of claim 9, wherein the method further comprises:

11. The method according to claim 9 or 10, wherein the first preset condition comprises:

12. The method of any of claims 9-11, wherein the electronic device further comprises a first bus;

13. The method of claim 12, wherein after the amount of data stored in the buffer corresponding to the first bus reaches a first data amount threshold, triggering an interrupt signal via the first bus; the method comprises the following steps:

14. The method of any of claims 9-11, wherein the electronic device further comprises a first bus;

15. The method of claim 14, wherein after the amount of data stored in the buffer corresponding to the first bus reaches a second data amount threshold, the audio signal stored in the buffer corresponding to the first bus is transferred to a second storage area; the method comprises the following steps:

16. A computer-readable storage medium, comprising a computer program which, when run on an electronic device, causes the electronic device to perform the method of any one of claims 9-15.

17. A computer program product, characterized in that it causes a computer to carry out the method according to any one of claims 9-15, when said computer program product is run on the computer.