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CN-121996046-A - Electronic equipment and microphone array power supply control method

CN121996046ACN 121996046 ACN121996046 ACN 121996046ACN-121996046-A

Abstract

The embodiment of the application discloses electronic equipment and a microphone array power supply control method, wherein the electronic equipment comprises a microphone array, a main processor and a low-power-consumption processor, the microphone array comprises at least one first microphone and at least one second microphone, the first microphone is connected with a first power supply circuit and a second power supply circuit which are connected in parallel, the second microphone is connected with a third power supply circuit, after the electronic equipment is started, the main processor controls the first power supply circuit to supply power to the first microphone, controls the third power supply circuit to supply power to the second microphone, controls the second power supply circuit to cut off, the main processor responds to a standby instruction, switches to a standby state, controls the first power supply circuit and the third power supply circuit to cut off, and when the main processor is in the standby state, the low-power-consumption processor sends a high-level signal to the second power supply circuit through a control interface, so that the second power supply circuit is switched to the power supply state under the action of the high-level signal and supplies power to the first microphone, and therefore standby power consumption is reduced.

Inventors

  • DING XIAOPENG

Assignees

  • 海信视像科技股份有限公司

Dates

Publication Date
20260508
Application Date
20260204

Claims (10)

  1. 1. An electronic device, comprising: the microphone array comprises at least one first microphone and at least one second microphone, wherein the first microphone is connected with a first power supply circuit and a second power supply circuit which are connected in parallel; the main processor is configured to control the first power supply circuit to supply power to the first microphone, control the third power supply circuit to supply power to the second microphone and control the second power supply circuit to be powered off after the electronic equipment is started; The main processor is further configured to respond to a standby instruction, switch to a standby state and control the first power supply circuit and the third power supply circuit to be powered off; the low-power-consumption processor is connected with the second power supply circuit through a control interface and is configured to send a high-level signal to the second power supply circuit through the control interface when the main processor is in a standby state so that the second power supply circuit is switched to an electrified state under the action of the high-level signal and supplies power to the first microphone.
  2. 2. The electronic device of claim 1, wherein the low power processor, prior to sending a high level signal to the second power supply circuit through the control interface, is further configured to: The method comprises the steps of acquiring a switch state of a voice awakening function, wherein the voice awakening function is a function of controlling the electronic equipment to start up by the low-power-consumption processor in response to a voice awakening instruction when the electronic equipment is in standby; and if the voice wake-up function is in a closed state, transmitting a low-level signal to the second power supply circuit through the control interface so that the second power supply circuit is kept in a power-off state under the action of the low-level signal.
  3. 3. The electronic device of claim 2, wherein the low power processor is configured to send a high level signal to the second power supply circuit via the control interface, and is configured to: And if the voice wake-up function is in an on state, transmitting a high-level signal to the second power supply circuit through the control interface.
  4. 4. An electronic device, comprising: The microphone array comprises at least one first microphone and at least one second microphone, wherein the first microphone is connected with a first power supply circuit and a second power supply circuit which are connected in parallel, and an on-resistance is connected in series between the first microphone and the second power supply circuit; the main processor is configured to control the first power supply circuit to supply power to the first microphone, control the third power supply circuit to supply power to the second microphone and control the second power supply circuit and the fourth power supply circuit to be powered off after the electronic equipment is started; The main processor is further configured to respond to a standby instruction, switch to a standby state and control the first power supply circuit and the third power supply circuit to be powered off; The low-power-consumption processor is connected with the second power supply circuit and the fourth power supply circuit through control interfaces, and is configured to respectively send high-level signals to the second power supply circuit and the fourth power supply circuit through the control interfaces when the main processor is in a standby state, so that the second power supply circuit supplies power to the first microphone under the action of the high-level signals and the on-resistance, and the fourth power supply circuit does not supply power to the second microphone under the action of the high-level signals and the off-state setting.
  5. 5. The electronic device of claim 4, wherein the low power processor, prior to sending high level signals to the second power supply circuit and the fourth power supply circuit, respectively, through the control interface, is further configured to: The method comprises the steps of acquiring a switch state of a voice awakening function, wherein the voice awakening function is a function of controlling the electronic equipment to start up by the low-power-consumption processor in response to a voice awakening instruction when the electronic equipment is in standby; and if the voice wake-up function is in a closed state, respectively sending low-level signals to the second power supply circuit and the fourth power supply circuit through the control interface so that the second power supply circuit and the fourth power supply circuit are kept in a power-off state under the action of the low-level signals.
  6. 6. The electronic device of claim 5, wherein the low power processor is configured to, when sending high level signals to the second power supply circuit and the fourth power supply circuit, respectively, through the control interface: And if the voice wake-up function is in an on state, respectively sending high-level signals to the second power supply circuit and the fourth power supply circuit through the control interface.
  7. 7. The electronic device of claim 4, further comprising a microphone array circuit board configured to carry the first power supply circuit and the second power supply circuit connected to the first microphone, and the third power supply circuit and the fourth power supply circuit connected to the second microphone, wherein a corresponding resistor mounting location is provided for each microphone in the microphone array on the microphone array circuit board, wherein the on-resistance is mounted in a first resistor mounting location between the first microphone and the second power supply circuit, wherein a first end of the on-resistance is connected to an output of the second power supply circuit, wherein a second end of the on-resistance is connected to a power input of the first microphone, and wherein a resistance value of the on-resistance is less than a first threshold value.
  8. 8. The electronic device of claim 7, wherein the circuit breaking structure is a second resistor mounting location between the second microphone and the fourth power supply circuit.
  9. 9. A microphone array power supply control method in electronic equipment comprises a microphone array, a main processor and a low-power-consumption processor, wherein the microphone array comprises at least one first microphone and at least one second microphone, the first microphone is connected with a first power supply circuit and a second power supply circuit which are connected in parallel, and the second microphone is connected with a third power supply circuit, and the method is characterized by comprising the following steps: After the electronic equipment is started, the main processor controls the first power supply circuit to supply power to the first microphone, controls the third power supply circuit to supply power to the second microphone and controls the second power supply circuit to be powered off; The main processor responds to a standby instruction, is switched to a standby state and controls the first power supply circuit and the third power supply circuit to be powered off; When the main processor is in a standby state, the low-power-consumption processor sends a high-level signal to the second power supply circuit through the control interface, so that the second power supply circuit is switched to an electrified state under the action of the high-level signal and supplies power to the first microphone.
  10. 10. The microphone array power supply control method in the electronic equipment comprises a microphone array, a main processor and a low-power-consumption processor, wherein the microphone array comprises at least one first microphone and at least one second microphone, the first microphone is connected with a first power supply circuit and a second power supply circuit which are connected in parallel, an on-resistance is connected in series between the first microphone and the second power supply circuit, the second microphone is connected with a third power supply circuit and a fourth power supply circuit which are connected in parallel, and an open circuit structure is arranged between the second microphone and the fourth power supply circuit, and the method is characterized by comprising the following steps: After the electronic equipment is started, the main processor controls the first power supply circuit to supply power to the first microphone, controls the third power supply circuit to supply power to the second microphone, and controls the second power supply circuit and the fourth power supply circuit to be powered off; The main processor responds to a standby instruction, is switched to a standby state and controls the first power supply circuit and the third power supply circuit to be powered off; When the main processor is in a standby state, the low-power consumption processor respectively sends high-level signals to the second power supply circuit and the fourth power supply circuit through the control interface, so that the second power supply circuit supplies power to the first microphone under the action of the high-level signals and the on-resistance, and the fourth power supply circuit does not supply power to the second microphone under the action of the high-level signals and the off-state setting.

Description

Electronic equipment and microphone array power supply control method Technical Field The present application relates to the field of power management technologies, and in particular, to an electronic device and a microphone array power supply control method. Background The electronic equipment can be configured with a microphone array, and can acquire and respond far-field voice signals through the microphone array, so that a user can input voice at a position far away from the microphone array, and the electronic equipment is commonly used for voice interaction scenes such as intelligent home voice control, voice assistants and the like. The microphone array comprises a plurality of microphones, and when the electronic equipment is in a standby state, the electronic equipment still supplies power for all the microphones, so that the microphone array keeps a whole-microphone working mode when the equipment is in a standby state, and the standby power consumption of the equipment is increased. Disclosure of Invention Some embodiments of the present application provide an electronic device and a microphone array power supply control method, which implement that when the electronic device is in standby, the microphone array only has local microphone work, so that a voice function in a standby mode is ensured, and standby power consumption of the device is reduced. In a first aspect, some embodiments of the present application provide an electronic device, including: the microphone array comprises at least one first microphone and at least one second microphone, wherein the first microphone is connected with a first power supply circuit and a second power supply circuit which are connected in parallel; the main processor is configured to control the first power supply circuit to supply power to the first microphone, control the third power supply circuit to supply power to the second microphone and control the second power supply circuit to be powered off after the electronic equipment is started; The main processor is further configured to respond to a standby instruction, switch to a standby state and control the first power supply circuit and the third power supply circuit to be powered off; the low-power-consumption processor is connected with the second power supply circuit through a control interface and is configured to send a high-level signal to the second power supply circuit through the control interface when the main processor is in a standby state so that the second power supply circuit is switched to an electrified state under the action of the high-level signal and supplies power to the first microphone. The microphone array comprises two types of microphones, wherein a first microphone is a microphone which is powered on and works when the electronic equipment is in standby, and a second microphone is a microphone which is powered off when the electronic equipment is in standby, the first microphone is connected with a first power supply circuit and a second power supply circuit which are connected in parallel, the second microphone is connected with a third power supply circuit, the first power supply circuit and the third power supply circuit can be normal circuits (namely, the power supply circuit which is started when the equipment is started), and the second power supply circuit is a standby circuit (the power supply circuit which is started when the equipment is in standby). Thus, after the electronic equipment is started, the main processor works, the first microphone is powered by the first power supply circuit, the second microphone is powered by the third power supply circuit, the second power supply circuit is powered off, all microphones in the microphone array are powered on when the equipment is started and operated, and the global working mode of the microphone array is realized. When the electronic equipment is in standby, the main processor is in standby, the first power supply circuit and the third power supply circuit are powered off, at the moment, the low-power consumption processor sends a high-level signal to the second power supply circuit through the control interface, the second power supply circuit is conducted under the action of the high-level signal and can transmit an effective power supply signal (for example, 3.3V) to the first microphone so as to supply power to the first microphone, and the second microphone is not provided with the power supply circuit in standby, and the third power supply circuit is not powered on in standby, so that the second microphone is powered off, only the first microphone is powered on to work in standby, a local working mode of the microphone array is realized, the standby power consumption of the equipment is reduced, the power supply logic can be automatically adapted along with the running state of the electronic equipment, and the working mode of the microphone array is accurately controlled. In some embodiments of the first as