CN115097925B - Zero-power-consumption sound self-awakening system and awakening method - Google Patents

Zero-power-consumption sound self-awakening system and awakening method Download PDF

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Publication number
CN115097925B
CN115097925B CN202210699634.5A CN202210699634A CN115097925B CN 115097925 B CN115097925 B CN 115097925B CN 202210699634 A CN202210699634 A CN 202210699634A CN 115097925 B CN115097925 B CN 115097925B
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self
module
awakening
sound
load
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CN115097925A (en
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赵嘉昊
杨登
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Tsinghua University
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Tsinghua University
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3206Monitoring of events, devices or parameters that trigger a change in power modality
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26Power supply means, e.g. regulation thereof
    • G06F1/32Means for saving power
    • G06F1/3203Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234Power saving characterised by the action undertaken
    • G06F1/3287Power saving characterised by the action undertaken by switching off individual functional units in the computer system
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application discloses a zero-power-consumption sound self-awakening system and a awakening method, wherein the system comprises: at least one load; the negative electrode of the power supply module is connected with one end of at least one load; the voice self-awakening module is characterized in that one end of the voice self-awakening module is connected with the positive electrode of the power supply module, the other end of the voice self-awakening module is connected with the other end of at least one load, and after a voice awakening instruction is received, the voice self-awakening module is switched from an open state to a closed state, so that the power supply module supplies power for the at least one load. Therefore, near-zero power consumption monitoring of various sounds can be realized, and the energy utilization rate and the endurance time of the electronic system can be greatly improved.

Description

Zero-power-consumption sound self-awakening system and awakening method
Technical Field
The application relates to the technical field of sound awakening, in particular to a zero-power-consumption sound self-awakening system and a awakening method.
Background
In wide area wireless sound monitoring network applications, the limited power supply of the terminal electronics severely limits its endurance. In such applications, the terminal electronics are in an active operating state only when the target sound signal is present. In many application scenarios, such as intrusion monitoring, animal research, etc., the frequency of occurrence of the target sound signal is extremely low, and a large amount of power energy of the terminal electronic device is lost in the capturing and analyzing process of the ineffective sound signal, so that the energy utilization rate of the terminal electronic device is low, which results in short endurance time and waste of energy.
In order to reduce the energy loss of the system, one means is to develop a low-power microphone and a sound processing chip to reduce the power of the system during operation. This approach may reduce energy consumption, but the energy utilization is still low. One is to design a system with sleep and wake-up functions. When the system is dormant, the main function of the system is in a closed state, and the sensing and identifying module for monitoring the sound signal keeps a continuous working state until the whole system is awakened after the target signal is monitored, and the system is switched to a high-energy consumption state. The mode effectively improves the energy utilization rate of the system, but the sensing and identifying module for monitoring the target sound signal still generates power energy loss. The energy consumption duty cycle of the sensor will be further increased, especially in applications where the probability of occurrence of the target signal is very low. Meanwhile, in the sleep state, the power supply module and other modules of the system are still in a closed state and are not completely closed, and sleep power consumption still exists, so that the problem of the sleep power consumption is one of important factors for limiting the endurance time of the system.
Disclosure of Invention
The zero-power-consumption sound self-awakening system and the awakening method can realize near-zero-power-consumption monitoring of various sounds, and can greatly improve the energy utilization rate and the endurance time of an electronic system.
An embodiment of a first aspect of the present application provides a zero-power-consumption sound self-wake-up system, including:
at least one load;
the negative electrode of the power supply module is connected with one end of the at least one load;
the sound is from awakening the module, sound is from awakening the one end of module with the positive pole of power module links to each other, sound is from awakening the other end of module with the other end of at least one load links to each other, after receiving sound awakening the instruction, sound is from awakening the module and switch to the closed state from the disconnected state for power module is for at least one load power supply.
In one embodiment of the present application, the acoustic self-wake-up module is a sound pressure driven mechanical or micromechanical switch.
In one embodiment of the present application, the voice self-wake module includes:
an electrostatic switch;
the positive electrode of the first piezoelectric microphone is connected with the driving electrode of the electrostatic switch, and the negative electrode of the first piezoelectric microphone is grounded.
In one embodiment of the present application, the voice self-wake module includes:
the negative electrode of the second piezoelectric microphone is grounded;
and the grid electrode of the triode is connected with the positive electrode of the second piezoelectric microphone, the source electrode of the triode is connected with the positive electrode of the power supply module, and the drain electrode of the triode is connected with the load module.
In an embodiment of the present application, the self-waking sound module is further configured to switch from the closed state to the open state after receiving an open command, and otherwise, keep the closed state all the time.
In one embodiment of the present application, the disconnection instruction is a sound sleep instruction or a manual instruction of a user.
In one embodiment of the present application, the at least one load comprises one or more diodes.
An embodiment of a second aspect of the present application provides a zero-power-consumption sound self-wake-up method, using the above zero-power-consumption sound self-wake-up system, the method includes the following steps:
receiving the voice wake-up instruction;
and controlling the voice self-awakening module to be switched from the open state to the closed state according to the voice awakening instruction, so that the power supply module supplies power to the at least one load.
In one embodiment of the present application, after controlling the voice self-wake module to switch from the open state to the closed state according to the voice wake instruction, the method further includes:
judging whether a disconnection instruction is received or not;
and if an opening instruction is received, controlling the sound self-awakening module to switch from the closed state to the open state, otherwise, keeping the closed state all the time.
In one embodiment of the present application, the disconnection instruction is a sound sleep instruction or a manual instruction of a user.
Embodiments of the present application have at least the following beneficial effects:
the sound self-wake-up system is formed by the power supply module, the load and the sound self-wake-up module, when a target sound signal does not appear, the sound self-wake-up module is in a disconnected state, a circuit breaker is formed between the power supply module and the load, no energy loss is caused, and the system is in a zero-power-consumption sleep state. When the target sound signal arrives, the sound self-awakening module enters a closed state under the action of the target signal, an electric loop is formed between the power supply module and the load, and the system is awakened. The near zero power consumption monitoring of various sounds can be realized, and the energy utilization rate and the endurance time of the electronic system can be greatly improved.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a zero-power-consumption sound self-wake-up system according to an embodiment of the present application;
fig. 2 is a schematic circuit structure diagram of a zero-power-consumption sound self-wake-up system according to an embodiment of the present application;
fig. 3 is a schematic circuit structure diagram of a specific zero-power-consumption sound self-wake-up system according to an embodiment of the present application;
fig. 4 is a schematic circuit structure diagram of another specific zero-power-consumption sound self-wake-up system according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a circuit structure of a zero-power sound self-wake-up system according to another embodiment of the present application;
fig. 6 is a flowchart of a zero-power-consumption sound self-wake-up method according to an embodiment of the present application.
Reference numerals: the device comprises a power module-1, a sound switch group-2, at least one load-3, a mechanical switch-4 driven by sound pressure, a sound self-awakening module-5 combined by a piezoelectric microphone and an electrostatic switch, a sound self-awakening module-6 combined by a semiconductor switch or chip such as a piezoelectric microphone and a triode, a light emitting diode-7, a piezoelectric microphone-8, an electrostatic switch-9 and a triode-10.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.
The following describes a zero-power-consumption sound self-wake-up system and a wake-up method according to an embodiment of the present application with reference to the accompanying drawings. Aiming at the problems of the related art, such as the energy utilization rate and the short duration of the voice self-awakening system, in the background center, the application provides a zero-power-consumption voice self-awakening system, wherein the voice self-awakening system is formed by a power module, a load and a voice self-awakening module, and is in a disconnection state when a target voice signal does not appear, and a circuit break is formed between the power module and the load without energy loss, so that the system is in a zero-power-consumption sleep state. When the target sound signal arrives, the sound self-awakening module enters a closed state under the action of the target signal, an electric loop is formed between the power supply module and the load, and the system is awakened. The near zero power consumption monitoring of various sounds can be realized, and the energy utilization rate and the endurance time of the electronic system can be greatly improved.
Specifically, fig. 1 is a schematic structural diagram of a zero-power-consumption sound self-wake-up system according to an embodiment of the present application.
As shown in fig. 1, the zero-power sound self-wake system 20 includes: a power module 1, a sound self-wake-up module 2 and at least one load 3.
Wherein the negative pole of the power supply module 1 is connected to one end of at least one load 3. One end of the voice self-awakening module 2 is connected with the positive electrode of the power supply module 1, the other end of the voice self-awakening module 2 is connected with the other end of the at least one load 3, and after receiving a voice awakening instruction, the voice self-awakening module 2 is switched from an open state to a closed state, so that the power supply module 1 supplies power for the at least one load 3.
It can be understood that in the self-waking system, when the target sound signal does not appear, the self-waking module 2 is in an off state, an open circuit is formed between the power module 1 and the load 3, and the system has no energy loss and is in a zero-power sleep state. When the target sound signal arrives, the sound self-awakening module 2 enters a closed state under the action of the target signal, an electric loop is formed between the power supply module 1 and the load 3, and the system is awakened.
Further, the zero-power-consumption sound self-wake-up system 20 in the embodiment of the present application can continuously monitor the target sound signal in real time without consuming power supply energy in the sleep state, and the monitored power consumption theoretical value is zero.
Further, the voice self-awakening module 2 in the embodiment of the application is relatively independent of the power module 1 and the load 3, so that system improvement can be facilitated, and upgrading improvement from a no-voice self-awakening system to a voice self-awakening system can be realized.
In an embodiment of the present application, the at least one load 3 comprises one or more diodes.
It can be appreciated that the load may take many forms, and in the system of the embodiment of the present application, the load may be a diode, and the state of the electrical loop is indicated by the light emitting state of the diode, so that it can be intuitively determined whether the current system is awakened.
As shown in fig. 2, the self-wake-up module of sound in the embodiment of the present application may be implemented in various manners, and in fig. 2, three forms of self-wake-up modules of sound are shown, specifically, a mechanical switch driven by sound pressure, a self-wake-up module of sound combined by a piezoelectric microphone and an electrostatic switch, and a self-wake-up module of sound combined by a piezoelectric microphone and a semiconductor switch or a chip such as a triode. The following is presented by way of specific examples.
In an embodiment of the present application, the acoustic self-wake-up module is a sound pressure driven mechanical switch or a micro-mechanical switch.
Specifically, as shown in fig. 3, taking a load as an example of a light emitting diode, the power module 1 and the light emitting diode 7 are connected in series with the mechanical switch 4 directly driven by sound pressure to form a loop. When the target sound signal does not appear, the mechanical switch 4 is in an open state, the circuit does not form a closed loop, and the system is in a non-powered-on non-reactive state. When the target sound signal appears, the mechanical switch 4 is closed by the sound pressure, and its closed state is maintained by the circuit design. The power module 1, the light emitting diode 7 and the mechanical switch 4 form a closed loop, the system is powered on, and the light emitting diode 7 emits an optical signal outwards.
In an embodiment of the present application, the sound self-wake module includes: an electrostatic switch; the positive pole of the first piezoelectric microphone is connected with the driving electrode of the electrostatic switch, and the negative pole of the first piezoelectric microphone is grounded.
Specifically, as shown in fig. 4, taking a load as an example of a light emitting diode, the power module 1, the light emitting diode 7 and the electrostatic switch 9 are connected in series to form a loop. The electrostatic drive electrode of the electrostatic switch 9 is connected to the positive electrode of the piezoelectric microphone 8. When the target sound signal does not appear, the electrostatic switch 9 is in an open state, the circuit does not form a closed loop, and the system is in a non-powered-on reactive state. When the target sound signal appears, the piezoelectric microphone generates a voltage signal under the action of sound pressure, drives the electrostatic switch 9 to be closed, and enables the closed state to be maintained by means of circuit design. The power module 1, the light emitting diode 7 and the electrostatic switch 9 form a closed loop, the system is powered on, and the light emitting diode 7 emits an optical signal outwards.
In an embodiment of the present application, the sound self-wake module includes: the negative electrode of the second piezoelectric microphone is grounded; and the grid electrode of the triode is connected with the positive electrode of the second piezoelectric microphone, the source electrode of the triode is connected with the positive electrode of the power supply module, and the drain electrode of the triode is connected with the load module.
Specifically, as shown in fig. 5, taking a load as an example of a light emitting diode, the power module 1, the light emitting diode 7 and the triode 10 are connected in series to form a loop. The gate of the transistor 10 is connected to the positive electrode of the piezoelectric microphone 8. When the target sound signal is not present, the triode 10 is in an open state, the circuit does not form a closed loop, and the system is in a non-powered-up and non-reactive state. When the target sound signal is present, the piezoelectric microphone generates a voltage signal under the action of sound pressure, so that the triode 10 is switched to a closed state, and the closed state is maintained by means of circuit design. The power module 1, the light emitting diode 7 and the triode 10 form a closed loop, the system is powered on, and the light emitting diode 7 emits an optical signal outwards.
In an embodiment of the present application, the self-wake-up module is further configured to switch from the closed state to the open state after receiving the open instruction, and otherwise, keep the closed state all the time.
Specifically, when the target sound signal arrives, the sound self-wake-up module in the embodiment of the application can keep a stable closed state after being switched from the open state to the closed state, does not switch the on-off state with sound frequency, and does not break off along with the disappearance of the target sound signal. In the closed state, the embodiment of the application detects whether an opening instruction is received, and if the opening instruction is received, the sound is controlled to be switched from the awakening module to the open state, and the self-awakening system is controlled to sleep. The disconnection instruction may be a voice sleep instruction or a manual instruction of a user. Similar to waking up, the self-waking system enters a sleep mode after receiving the target sound signal, or the user directly and manually disconnects the sound self-waking module, which is not particularly limited. In the dormant state, the power module is physically disconnected from the load, and the system is in a closed state without dormant power consumption.
It should be noted that, the monitoring of the sound signal by the sound self-wake-up module does not consume power supply energy, and the switching of the switch module from the open state to the closed state does not consume power supply energy.
According to the zero-power-consumption sound self-awakening system provided by the embodiment of the application, the sound self-awakening system is formed by the power supply module, the load and the sound self-awakening module, when a target sound signal does not appear, the sound self-awakening module is in a disconnection state, a circuit breaker is formed between the power supply module and the load, no energy loss exists, and the system is in a zero-power-consumption dormant state. When the target sound signal arrives, the sound self-awakening module enters a closed state under the action of the target signal, an electric loop is formed between the power supply module and the load, and the system is awakened. Zero-power consumption sound monitoring and awakening of the sound monitoring system in a dormant state can be realized, so that dormant power consumption of the system is obviously reduced, the energy utilization rate is improved, the energy loss is reduced, and the endurance time of the system is greatly prolonged.
The zero-power-consumption sound self-wake-up method according to the embodiment of the application is described with reference to the accompanying drawings.
Fig. 6 is a flowchart of a zero-power-consumption sound self-wake-up method according to an embodiment of the present application.
As shown in fig. 6, the method for self-waking up a zero-power sound is used in the above self-waking up system, and includes the following steps:
s601, receiving a voice wake-up instruction.
S602, controlling the voice self-awakening module to switch from an open state to a closed state according to the voice awakening instruction, so that the power supply module supplies power to at least one load.
In one embodiment of the present application, after controlling the voice self-wake module to switch from the open state to the closed state according to the voice wake instruction, the method further includes: judging whether a disconnection instruction is received or not; if the opening instruction is received, the control sound is switched from the closing state to the opening state from the awakening module, otherwise, the closing state is always kept.
In one embodiment of the present application, the disconnect instruction is a voice sleep instruction or a manual instruction by a user.
It should be noted that the foregoing explanation of the embodiment of the zero-power-consumption sound self-wake-up system is also applicable to the zero-power-consumption sound self-wake-up method of the embodiment, and will not be repeated herein.
According to the zero-power-consumption sound self-awakening method provided by the embodiment of the application, when the target sound signal does not appear, the sound self-awakening module is in a disconnected state, a circuit breaker is formed between the power supply module and the load, no energy loss is caused, and the system is in a zero-power-consumption dormant state. When the target sound signal arrives, the sound self-awakening module enters a closed state under the action of the target signal, an electric loop is formed between the power supply module and the load, and the system is awakened. Zero-power consumption sound monitoring and awakening of the sound monitoring system in a dormant state can be realized, so that dormant power consumption of the system is obviously reduced, the energy utilization rate is improved, the energy loss is reduced, and the endurance time of the system is greatly prolonged.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or N embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless explicitly defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more N executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

Claims (7)

1. A zero-power acoustic self-wake system, comprising:
at least one load;
the negative electrode of the power supply module is connected with one end of the at least one load;
the sound self-awakening module is connected with the positive electrode of the power supply module, the other end of the sound self-awakening module is connected with the other end of the at least one load, and after a sound awakening instruction is received, the sound self-awakening module is switched from an open state to a closed state so that the power supply module supplies power for the at least one load;
the sound self-awakening module is a mechanical switch or a micromechanical switch driven by sound pressure;
the sound self-awakening module comprises:
an electrostatic switch;
the positive electrode of the first piezoelectric microphone is connected with the driving electrode of the electrostatic switch, and the negative electrode of the first piezoelectric microphone is grounded;
the sound self-awakening module comprises:
the negative electrode of the second piezoelectric microphone is grounded;
and the grid electrode of the triode is connected with the positive electrode of the second piezoelectric microphone, the source electrode of the triode is connected with the positive electrode of the power supply module, and the drain electrode of the triode is connected with the load.
2. The system of claim 1, wherein the self-waking acoustic module is further configured to switch from the closed state to the open state upon receipt of an open command, and to otherwise remain in the closed state.
3. The system of claim 2, wherein the disconnect command is a voice sleep command or a manual command by a user.
4. The system of claim 1, wherein the at least one load comprises one or more diodes.
5. A zero-power consumption acoustic self-wake method, characterized by using the zero-power consumption acoustic self-wake system of any one of claims 1-4, the method comprising the steps of:
receiving the voice wake-up instruction;
and controlling the voice self-awakening module to be switched from the open state to the closed state according to the voice awakening instruction, so that the power supply module supplies power to the at least one load.
6. The method of claim 5, further comprising, after controlling the voice self-wake module to switch from the open state to the closed state in accordance with the voice wake instruction:
judging whether a disconnection instruction is received or not;
and if an opening instruction is received, controlling the sound self-awakening module to switch from the closed state to the open state, otherwise, keeping the closed state all the time.
7. The method of claim 6, wherein the disconnect command is a voice sleep command or a manual command by a user.
CN202210699634.5A 2022-06-20 2022-06-20 Zero-power-consumption sound self-awakening system and awakening method Active CN115097925B (en)

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