CN220855846U - Voice control circuit and remote controller - Google Patents

Voice control circuit and remote controller Download PDF

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Publication number
CN220855846U
CN220855846U CN202322306498.1U CN202322306498U CN220855846U CN 220855846 U CN220855846 U CN 220855846U CN 202322306498 U CN202322306498 U CN 202322306498U CN 220855846 U CN220855846 U CN 220855846U
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module
electrically connected
capacitor
voice
voice processing
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CN202322306498.1U
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陈福斌
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Shenzhen Honghe Innovation Information Technology Co Ltd
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Shenzhen Honghe Innovation Information Technology Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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Abstract

The application belongs to the technical field of wireless remote control, and provides a voice control circuit and a remote controller. The voice control circuit comprises a voice acquisition module, a voice processing module, a switch module, a Bluetooth transmitting module and a key module; the Bluetooth transmitting module is respectively and electrically connected with the voice processing module, the switch module and the key module, the voice processing module is respectively and electrically connected with the voice acquisition module and the switch module, the switch module is used for being electrically connected with a power supply, and the Bluetooth transmitting module is used for being communicated with an upper computer. The Bluetooth transmitting module is used for controlling the on-off of the switch module through a voice control key in the key module so as to supply power to or cut off power from the voice processing module. The voice control circuit provided by the embodiment of the application solves the problem that the service time of the traditional wireless voice remote controller is greatly shortened because the voice processing module is always in the power-on state.

Description

Voice control circuit and remote controller
Technical Field
The application belongs to the technical field of intelligent remote control, and particularly relates to a voice control circuit and a remote controller.
Background
With the increasing popularity of intelligent large screens, the human-computer interaction is diversified, and the wireless voice remote controller is also popular. A voice processing module is adopted in the wireless voice remote controller to process voice signals, and the voice processing module needs a power supply to supply power to work.
The existing wireless voice remote controller adopts a battery to supply power to the voice processing module, and no matter whether a user uses wireless voice control, the voice processing module is always in a power-on state, so that the power consumption is large, and the service time of the wireless voice remote controller is greatly shortened.
Disclosure of utility model
The embodiment of the application provides a voice control circuit and a remote controller, which can solve the problem that the service time of the existing wireless voice remote controller is greatly shortened because a voice processing module is always in a power-on state.
In a first aspect, an embodiment of the present application provides a voice control circuit, including a voice acquisition module, a voice processing module, a switch module, a bluetooth transmitting module, and a key module; the Bluetooth transmitting module is respectively and electrically connected with the voice processing module, the switch module and the key module, the voice processing module is respectively and electrically connected with the voice acquisition module and the switch module, the switch module is used for being electrically connected with a power supply, and the Bluetooth transmitting module is used for being communicated with an upper computer;
The Bluetooth transmitting module is used for controlling the on-off of the switch module through a voice control key in the key module so as to supply power to or cut off power from the voice processing module.
In a possible implementation manner of the first aspect, the switching module includes a first switching tube and a first resistor; the control end of the first switching tube is electrically connected with one end of the first resistor and the Bluetooth transmitting module respectively, the first conduction end of the first switching tube is electrically connected with the voice processing module, and the second conduction end of the first switching tube is electrically connected with the other end of the first resistor and the power supply respectively.
In a possible implementation manner of the first aspect, the voice processing module includes a boost unit, a voice processing unit, and a serial port unit; the voice processing unit is respectively and electrically connected with the boosting unit, the serial port unit and the voice acquisition module, the boosting unit is respectively and electrically connected with the switch module and the serial port unit, the serial port unit is electrically connected with the Bluetooth transmission module, and the serial port unit is used for being electrically connected with the power supply.
In a possible implementation manner of the first aspect, the voice processing unit includes a voice processing chip; the input end of the voice processing chip is electrically connected with the voice acquisition module, the output end of the voice processing chip is electrically connected with the serial port unit, and the power end of the voice processing chip is electrically connected with the boosting unit.
In a possible implementation manner of the first aspect, the boost unit includes a boost chip, a first inductor, a first diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, and a sixth capacitor; the induction pin of the boost chip is respectively and electrically connected with one end of the first inductor and the positive electrode of the first diode, the other end of the first inductor is respectively and electrically connected with the positive electrode of the first capacitor, the positive electrode of the second capacitor, the positive electrode of the third capacitor and the switch module, the negative electrode of the first diode is respectively and electrically connected with the output pin of the boost chip, the positive electrode of the fourth capacitor, the positive electrode of the fifth capacitor, the positive electrode of the sixth capacitor, the voice processing unit and the serial port unit, and the grounding pin of the boost chip, the negative electrode of the first capacitor, the negative electrode of the second capacitor, the negative electrode of the third capacitor, the negative electrode of the fourth capacitor, the negative electrode of the fifth capacitor and the negative electrode of the sixth capacitor are all grounded.
In a possible implementation manner of the first aspect, the serial port unit includes a second resistor, a third resistor, and a second diode; one end of the second resistor is electrically connected with the boosting unit, the other end of the second resistor is electrically connected with the negative electrode of the second diode and the voice processing unit respectively, the positive electrode of the second diode is electrically connected with the Bluetooth transmitting module and one end of the third resistor respectively, and the other end of the third resistor is electrically connected with the power supply.
In a possible implementation manner of the first aspect, the bluetooth transmitting module includes a bluetooth transmitting unit and an antenna; the Bluetooth transmitting unit is respectively and electrically connected with the antenna, the key module, the switch module and the voice processing module, and the antenna is used for communicating with the upper computer.
In a possible implementation manner of the first aspect, the bluetooth transmitting unit includes a bluetooth chip; the input end of the Bluetooth chip is electrically connected with the voice processing module, the output end of the Bluetooth chip is electrically connected with the antenna, the key scanning end of the Bluetooth chip is electrically connected with the key module, and the control end of the Bluetooth chip is electrically connected with the switch module.
In a possible implementation manner of the first aspect, the voice acquisition module includes a microphone, a fourth resistor, a seventh capacitor, and an eighth capacitor; the positive pole of the microphone is respectively and electrically connected with the positive pole of the seventh capacitor and one end of the fourth resistor, the negative pole of the seventh capacitor is electrically connected with the voice processing module, the other end of the fourth resistor is respectively and electrically connected with the positive pole of the eighth capacitor and the voice processing module, and the negative pole of the eighth capacitor and the negative pole of the microphone are grounded.
In a second aspect, an embodiment of the present application provides a remote controller, including the voice control circuit according to any one of the first aspects.
Compared with the prior art, the embodiment of the application has the beneficial effects that:
The embodiment of the application provides a voice control circuit which comprises a voice acquisition module, a voice processing module, a switch module, a Bluetooth transmitting module and a key module. The Bluetooth transmitting module is respectively electrically connected with the voice processing module, the switch module and the key module, the voice processing module is respectively electrically connected with the voice acquisition module and the switch module, the switch module is used for being electrically connected with a power supply, and the Bluetooth transmitting module is used for being communicated with an upper computer. The Bluetooth transmitting module is used for controlling the on-off of the switch module through the voice control key in the key module so as to supply power or cut off power to the voice processing module.
Specifically, the bluetooth transmitting module is used for scanning the key module, when the voice control key in the key module is not triggered, the bluetooth transmitting module is used for outputting a first control signal to the switch module, the switch module is used for disconnecting the power supply from the voice processing module according to the first control signal, and then the voice processing module is powered off.
When the voice control key in the key module is triggered, the Bluetooth transmitting module is used for outputting a second control signal to the switch module, the switch module is used for being conducted according to the second control signal, so that the power supply is connected with the voice processing module in a conducting mode, and then the power supply supplies power to the voice processing module.
As can be seen from the above, the voice control circuit provided by the embodiment of the application controls the on or off of the switch module through the voice control key in the key module, so as to power on or off the voice control module, thereby saving power consumption, prolonging the service time of the wireless voice remote controller, and solving the problems that the power consumption of the circuit is large and the service time of the wireless voice remote controller is greatly shortened because the voice processing module is always in the power-on state.
It will be appreciated that the advantages of the second aspect may be found in the relevant description of the first aspect, and will not be described in detail herein.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a speech control circuit according to an embodiment of the present application;
FIG. 2 is a schematic block diagram of a voice control circuit provided in another embodiment of the present application;
FIG. 3 is a schematic circuit diagram illustrating a switch module in a voice control circuit according to an embodiment of the present application;
FIG. 4 is a schematic diagram showing a circuit connection of a speech processing unit in a speech control circuit according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating a circuit connection of a boost unit in a voice control circuit according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a circuit connection of a serial port unit in a voice control circuit according to an embodiment of the present application;
fig. 7 is a schematic circuit connection diagram of a bluetooth transmitting unit in a voice control circuit according to an embodiment of the present application;
fig. 8 is a schematic circuit diagram of an antenna in a voice control circuit according to an embodiment of the present application;
FIG. 9 is a schematic diagram illustrating a circuit connection of a voice acquisition module in a voice control circuit according to an embodiment of the present application;
Fig. 10 is a schematic circuit connection diagram of a key module in a voice control circuit according to an embodiment of the application.
In the figure: 10. a voice acquisition module; 20. a voice processing module; 21. a boosting unit; 22. a voice processing unit; 23. a serial port unit; 30. a switch module; 40. a Bluetooth transmitting module; 41. a Bluetooth transmitting unit; 42. an antenna; 50. a key module; 60. an upper computer; 70. and a power supply.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As used in the present description and the appended claims, the term "if" may be interpreted in context as "when …" or "once" or "in response to a determination" or "in response to detection. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the 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 application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In order to solve the problem that the service time of an existing wireless voice remote controller is greatly shortened because a voice processing module is always in a power-on state, the embodiment of the application provides a voice control circuit. As shown in fig. 1, the voice control circuit includes a voice acquisition module 10, a voice processing module 20, a switching module 30, a bluetooth transmitting module 40, and a key module 50. The bluetooth transmitting module 40 is electrically connected with the voice processing module 20, the switch module 30 and the key module 50 respectively, the voice processing module 20 is electrically connected with the voice collecting module 10 and the switch module 30 respectively, the switch module 30 is electrically connected with the power supply 70, and the bluetooth transmitting module 40 is used for communicating with the upper computer 60. The bluetooth transmitting module 40 is used for controlling the on/off of the switch module 30 by the voice control key in the key module 50 to power on/off the voice processing module 20.
Specifically, the bluetooth transmitting module 40 is configured to scan the key module 50, when the voice control key in the key module 50 is not triggered, the bluetooth transmitting module 40 is configured to output a first control signal to the switch module 30, the first control signal is a high level signal, the switch module 30 is configured to disconnect the power supply 70 from the voice processing module 20 according to the first control signal, and then the voice processing module 20 is powered off.
When the voice control key in the key module 50 is triggered, the bluetooth transmitting module 40 is configured to output a second control signal to the switch module 30, where the second control signal is a low level signal, the switch module 30 is configured to be turned on according to the second control signal, so that the power supply 70 is connected to the voice processing module 20 in a conductive manner, and then the power supply 70 supplies power to the voice processing module 20, and the voice processing module 20 starts to operate. The voice processing module 20 is configured to process the voice signal collected by the voice collection module 10 to obtain a voice command, and transmit the voice command to the bluetooth transmitting module 40. The bluetooth transmitting module 40 is used for transmitting the voice command to a bluetooth receiving module in the upper computer 60, the bluetooth receiving module in the upper computer 60 is used for transmitting the voice command to a main control chip in the upper computer 60, and the main control chip in the upper computer 60 executes related operations according to the voice command. Meanwhile, the user may instruct the upper computer 60 to perform other related operations according to the key module 50, for example: adjust volume, brightness, etc. It should be noted that, when the voice control key in the key module 50 is triggered, the user is illustrated as using wireless voice control.
As can be seen from the above, the voice control circuit provided in the embodiment of the present application controls the on/off of the switch module 30 through the voice control key in the key module 50 to power the voice processing module 20, thereby saving power consumption, prolonging the service time of the wireless voice remote controller, and solving the problem that the power consumption of the circuit is large and the service time of the wireless voice remote controller is greatly shortened due to the fact that the voice processing module 20 is always in the power-on state.
Illustratively, the power source 70 is a battery.
As shown in fig. 3, the switching module 30 includes a first switching tube Q1 and a first resistor R1. The control end of the first switching tube Q1 is electrically connected to one end of the first resistor R1 and the bluetooth transmitting module 40, the first conducting end of the first switching tube Q1 is electrically connected to the voice processing module 20, and the second conducting end of the first switching tube Q1 is electrically connected to the other end of the first resistor R1 and the power supply 70.
The first switching tube Q1 is a PMOS (positive CHANNEL METAL Oxide Semiconductor ) tube, the control end of the first switching tube Q1 is a gate of the PMOS tube, the first conducting end of the first switching tube Q1 is a drain of the PMOS tube, and the second conducting end of the first switching tube Q1 is a source of the PMOS tube.
Specifically, when the voice control key in the key module 50 is not triggered, the bluetooth transmitting module 40 is configured to output a first control signal to the control end of the first switching tube Q1, where the first control signal is a high level signal, the first switching tube Q1 is turned off, so that the power supply 70 is disconnected from the voice processing module 20, and the voice processing module 20 is powered off.
When the voice control key in the key module 50 is triggered, the bluetooth transmitting module 40 is configured to output a second control signal to the control end of the first switching tube Q1, where the second control signal is a low level signal, and the first switching tube Q1 is turned on to connect the power supply 70 to the voice processing module 20, and the power supply 70 supplies power to the voice processing module 20, and the voice processing module 20 starts to operate. The first resistor R1 plays a role of pulling up, and ensures that the first switching tube Q1 is in an off state when the bluetooth transmitting module 40 does not output a signal.
Note that the switch module 30 may be replaced by another module that realizes the function thereof, and is not limited thereto.
As shown in fig. 2, the voice processing module 20 includes a boosting unit 21, a voice processing unit 22, and a serial unit 23. The voice processing unit 22 is electrically connected with the boost unit 21, the serial port unit 23 and the voice acquisition module 10 respectively, the boost unit 21 is electrically connected with the switch module 30 and the serial port unit 23 respectively, the serial port unit 23 is electrically connected with the Bluetooth transmitting module 40, and the serial port unit 23 is electrically connected with the power supply 70.
Specifically, when the switch module 30 is in the on state, the boost unit 21 is configured to convert the voltage provided by the power supply 70 to obtain the power supply voltage required by the operation of the speech processing unit 22, where in the embodiment of the present application, the voltage provided by the power supply 70 is 3V, and the power supply voltage is 3.3V. The voice processing unit 22 is configured to process the voice signal collected by the voice collection module 10 to obtain a voice command, and transmit the voice command to the serial unit 23, where the serial unit 23 is configured to transmit the voice command to the bluetooth transmitting module 40.
Illustratively, the speech processing unit 22 includes a speech processing chip. The input end of the voice processing chip is electrically connected with the voice acquisition module 10, the output end of the voice processing chip is electrically connected with the serial port unit 23, and the power end of the voice processing chip is electrically connected with the boosting unit 21.
The voice processing chip is a DSP chip, the model of the DSP chip is US326E, as shown in fig. 4, the circuit diagram of the DSP chip is shown in fig. 4, the mic_ BAIS pin 7 and the MIC pin 8 of the DSP chip are electrically connected to the voice acquisition module 10, the VCOM pin 11 of the DSP chip is electrically connected to the positive electrode of the twelfth capacitor C12, the DACVSS pin 10 and the negative electrode of the twelfth capacitor C12 of the DSP chip are grounded, the VDDIO pin 18 of the DSP chip is electrically connected to the positive electrode of the ninth capacitor C9, the negative electrode of the ninth capacitor C9 is grounded, the VBAT pin 17 of the DSP chip is electrically connected to the positive electrode of the tenth capacitor C10, the positive electrode of the eleventh capacitor C11 and the boosting unit 21, the VSSIO pin 20 of the DSP chip, the negative electrode of the tenth capacitor C10 and the negative electrode of the eleventh capacitor C11 are electrically connected to each other, the PC4 pin and the PC5 pin of the DSP chip are electrically connected to the serial port unit 23, and the bt_ OSCO pin 24 and BTOSCI pin 23 of the DSP chip are electrically connected to the crystal oscillator.
As shown in fig. 5, the boost unit 21 includes a boost chip U2, a first inductor L1, a first diode D1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor C6. The inductance pin of the boost chip U2 is electrically connected with one end of the first inductance L1 and the positive electrode of the first diode D1, the other end of the first inductance L1 is electrically connected with the positive electrode of the first capacitor C1, the positive electrode of the second capacitor C2, the positive electrode of the third capacitor C3 and the switch module 30, and the negative electrode of the first diode D1 is electrically connected with the output pin of the boost chip U2, the positive electrode of the fourth capacitor C4, the positive electrode of the fifth capacitor C5, the positive electrode of the sixth capacitor C6, the voice processing unit 22 and the serial port unit 23, respectively, and the ground pin of the boost chip U2, the negative electrode of the first capacitor C1, the negative electrode of the second capacitor C2, the negative electrode of the third capacitor C3, the negative electrode of the fourth capacitor C4, the negative electrode of the fifth capacitor C5 and the negative electrode of the sixth capacitor C6 are all grounded. As can be seen from fig. 3 and 4, the other end of the first inductor L1 is electrically connected to the positive electrode of the first capacitor C1, the positive electrode of the second capacitor C2, the positive electrode of the third capacitor C3, and the first conducting end of the first switching tube Q1, and the negative electrode of the first diode D1 is electrically connected to the output pin of the boost chip U2, the positive electrode of the fourth capacitor C4, the positive electrode of the fifth capacitor C5, the positive electrode of the sixth capacitor C6, the VBAT pin 17 of the DSP chip, and the serial port unit 23.
Specifically, the boost chip U2, the first inductor L1 and the first diode D1 form a boost circuit, which is configured to boost the voltage provided by the power supply 70, so as to obtain the supply voltage dc_3.3v required by the operation of the speech processing unit 22. The first capacitor C1, the second capacitor C2 and the third capacitor C3 are used to filter the voltage provided by the power supply 70. The fourth, fifth and sixth capacitors C4, C5 and C6 are used to filter the supply voltage dc_3.3V.
Illustratively, the first diode D1 is a schottky diode.
Illustratively, boost chip U2 is model ME2100A33SOT23-3.
The boosting unit 21 may be replaced with another unit that realizes the function thereof, and is not limited thereto.
As shown in fig. 6, the serial unit 23 includes a second resistor R2, a third resistor R3, and a second diode D2. One end of the second resistor R2 is electrically connected to the booster unit 21, the other end of the second resistor R2 is electrically connected to the negative electrode of the second diode D2 and the voice processing unit 22, the positive electrode of the second diode D2 is electrically connected to the bluetooth transmitting module 40 and one end of the third resistor R3, and the other end of the third resistor R3 is electrically connected to the power supply 70. As can be seen from fig. 4 and fig. 5, one end of the second resistor R2 is electrically connected to the negative electrode of the first diode D1, the output pin of the boost chip U2, the positive electrode of the fourth capacitor C4, the positive electrode of the fifth capacitor C5, and the positive electrode of the sixth capacitor C6, respectively. The other end of the second resistor R2 is electrically connected with the cathode of the second diode D2 and the PC4 pin 2 of the DSP chip respectively.
Specifically, the voice processing unit 22 sends a voice command to the bluetooth transmitting module 40 through the serial port unit 23, when the voice command is a low level signal, the negative electrode of the second diode D2 is a low level signal, and due to the effect of the third resistor R3, the positive electrode of the second diode D2 is a high level signal, so that the second diode D2 is turned on and outputs a low level signal to the bluetooth transmitting module 40. It should be noted that the conduction voltage drop of the second diode D2 is very small and negligible.
When the voice command is a high level signal, the cathode of the second diode D2 is a high level signal, and the anode of the second diode D2 is a high level signal due to the effect of the third resistor R3, the second diode D2 is turned off, and the high level signal is output to the bluetooth transmitting module 40.
Since the transmission and the reception in the serial unit 23 occur simultaneously, the embodiment of the present application also provides a specific circuit diagram for receiving data through the serial unit 23, and as shown in fig. 6, the serial unit 23 further includes a fifth resistor R5, a sixth resistor R6, a second switching tube Q2, and a seventh resistor R7. One end of a sixth resistor R6 is electrically connected with the boosting unit 21, the other end of the sixth resistor R6 is electrically connected with the voice processing unit 22 and the first conducting end of the second switching tube Q2 respectively, one end of a fifth resistor R5 is used for being electrically connected with the power supply 70, the other end of the fifth resistor R5 is electrically connected with the control end of the second switching tube Q2, the second conducting end of the second switching tube Q2 is electrically connected with one end of a seventh resistor R7 and the Bluetooth transmitting module 40 respectively, and the other end of the seventh resistor R7 is used for being electrically connected with the power supply 70. As can be seen from fig. 4 and fig. 5, one end of the sixth resistor R6 is electrically connected to the negative electrode of the first diode D1, the output pin of the boost chip U2, the positive electrode of the fourth capacitor C4, the positive electrode of the fifth capacitor C5, and the positive electrode of the sixth capacitor C6, respectively. The other end of the sixth resistor R6 is electrically connected with the PC5 pin 1 of the DSP chip and the first conducting end of the second switching tube Q2 respectively.
The serial port unit 23 may be replaced by another unit that realizes the function thereof, and is not limited thereto.
As shown in fig. 2, the bluetooth transmitting module 40 includes a bluetooth transmitting unit 41 and an antenna 42. The bluetooth transmitting unit 41 is electrically connected to the antenna 42, the key module 50, the switch module 30 and the voice processing module 20, respectively, and the antenna 42 is used for communicating with the host computer 60. As can be seen from fig. 2, the bluetooth transmitting unit 41 is electrically connected to the antenna 42, the key module 50, the switch module 30 and the serial port unit 23, respectively.
Specifically, the bluetooth transmitting unit 41 is configured to scan the key module 50, when the voice control key in the key module 50 is not triggered, the bluetooth transmitting unit 41 outputs a first control signal to the switch module 30, the switch module 30 is disconnected according to the first control signal, so that the power supply 70 is disconnected from the voice processing module 20, and the voice processing module 20 is powered off.
When the voice control key in the key module 50 is triggered, the bluetooth transmitting unit 41 outputs a second control signal to the switch module 30, the switch module 30 is turned on according to the second control signal, so that the power supply 70 is connected with the voice processing module 20 in a conductive manner, the power supply 70 supplies power to the voice processing module 20, the voice processing module 20 starts to work, the serial port unit 23 is used for transmitting the voice command processed by the voice processing unit 22 to the bluetooth transmitting unit 41, and the bluetooth transmitting unit 41 transmits the voice command to the upper computer 60 through the antenna 42.
Illustratively, the bluetooth transmitting unit 41 includes a bluetooth chip. The input of bluetooth chip is connected with speech processing module 20 electricity, and the output of bluetooth chip is connected with antenna 42 electricity, and the button scanning end of bluetooth chip is connected with button module 50 electricity, and the control end of bluetooth chip is connected with switch module 30 electricity. Specifically, the input end of the bluetooth chip is electrically connected to the serial port unit 23 in the speech processing module 20.
For example, the bluetooth chip is ATB1113, whose circuit diagram is shown in fig. 7, it can be seen from fig. 7 that the BLEVDDPA pin 1 and the RF pin 2 of the bluetooth chip are electrically connected to the antenna 42, the GPIO18 pin 6 of the bluetooth chip is electrically connected to the switch module 30, the IOVDD pin 17 of the bluetooth chip is electrically connected to the power supply 70, the GPIO8 pin 10 and the GPIO9 pin 11 of the bluetooth chip are electrically connected to the serial port unit 23 in the voice processing module 20, the HOSCI pin 4 and the HOSCO pin 5 of the bluetooth chip are electrically connected to the crystal oscillator, the gnd_ep pin 33 of the bluetooth chip is grounded, and the GPIO0 pin 24, the GPIO1 pin 25, the GPIO21 pin 27, the GPIO20 pin 28 and the GPIO22 pin 26 of the bluetooth chip are electrically connected to the key module 50. As can be seen from fig. 3, 4 and 6, the GPIO18 pin 6 of the bluetooth chip is electrically connected to one end of the first resistor R1 and the control end of the first switching tube Q1, respectively. The GPIO8 pin 10 of the Bluetooth chip is respectively and electrically connected with the second conduction end of the second switch tube Q2 and one end of the seventh resistor R7, and the GPIO9 pin 11 of the Bluetooth chip is respectively and electrically connected with the anode of the second diode D2 and one end of the third resistor R3.
The antenna 42 is illustratively comprised of mainly inductive, capacitive and RF radio frequency filters, with a specific circuit configuration as shown in fig. 8. As can be seen from fig. 7 and 8, the positive electrode of the thirteenth capacitor C13 and one end of the second inductor L2 are electrically connected to the BLEVDDPA pin 1 of the bluetooth chip, and the other end of the second inductor L2, the positive electrode of the fifteenth capacitor C15 and the positive electrode of the fourteenth capacitor C14 are electrically connected to the RF pin 2 of the bluetooth chip.
As shown in fig. 9, the voice acquisition module 10 includes a microphone M1, a fourth resistor R4, a seventh capacitor C7, and an eighth capacitor C8. The positive pole of the microphone M1 is respectively and electrically connected with the positive pole of the seventh capacitor C7 and one end of the fourth resistor R4, the negative pole of the seventh capacitor C7 is electrically connected with the voice processing module 20, the other end of the fourth resistor R4 is respectively and electrically connected with the positive pole of the eighth capacitor C8 and the voice processing module 20, and the negative pole of the eighth capacitor C8 and the negative pole of the microphone M1 are grounded. Specifically, the negative electrode of the seventh capacitor C7 is electrically connected to the speech processing unit 22 in the speech processing module 20. The other end of the fourth resistor R4 is electrically connected to the positive electrode of the eighth capacitor C8 and the voice processing unit 22 in the voice processing module 20, respectively. Referring to fig. 4, it can be seen that the negative electrode of the seventh capacitor C7 is electrically connected to the MIC pin 8 of the DSP chip, and the other end of the fourth resistor R4 is electrically connected to the positive electrode of the eighth capacitor C8 and the mic_ BAISP pin 7 of the DSP chip, respectively.
Specifically, the microphone M1 is configured to collect a voice signal, and transmit the voice signal to the DSP chip after capacitive coupling, where the DSP chip is configured to process the collected voice signal to obtain a voice command. The fourth resistor R4 and the eighth capacitor C8 are used for filtering the bias voltage provided by the DSP chip.
The embodiment of the present application uses the key module 50 including 5 keys as an example to describe the circuit structure of the key module 50, and the present application does not limit the number of keys in the key module 50.
As shown in fig. 10, the key module 50 includes a first key IOK1, a second key IOK2, a third key IOK3, a fourth key IOK4, and a fifth key IOK5. As can be seen from fig. 7 and 10, one end of the first key IOK1 and one end of the fourth key IOK4 are electrically connected with the GPIO21 pin 27 of the bluetooth chip, one end of the fourth key IOK4 and one end of the third key IOK3 are electrically connected with the GPIO0 pin 24 of the bluetooth chip, the other end of the first key IOK1 is electrically connected with one end of the second key IOK2, one end of the fifth key IOK5 and the GPIO1 pin 25 of the bluetooth chip, the other end of the second key IOK2 and the other end of the third key IOK3 are electrically connected with the GPIO20 pin 28 of the bluetooth chip, and the other end of the fifth key IOK5 is electrically connected with the GPIO22 pin 26 of the bluetooth chip. It should be noted that one of the 5 keys in the key module 50 is a voice control key.
Specifically, the bluetooth chip is configured to scan the key module 50, and when a key in the key module 50 is triggered, the bluetooth chip performs an operation corresponding to the key.
The embodiment of the application also provides a remote controller which comprises the voice control circuit. The remote controller provided by the embodiment of the application has the advantages of low power consumption and long service time, and the specific working principle is described with reference to the working principle of the voice control circuit, and is not repeated here.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (10)

1. The voice control circuit is characterized by comprising a voice acquisition module, a voice processing module, a switch module, a Bluetooth transmitting module and a key module; the Bluetooth transmitting module is respectively and electrically connected with the voice processing module, the switch module and the key module, the voice processing module is respectively and electrically connected with the voice acquisition module and the switch module, the switch module is used for being electrically connected with a power supply, and the Bluetooth transmitting module is used for being communicated with an upper computer;
The Bluetooth transmitting module is used for controlling the on-off of the switch module through a voice control key in the key module so as to supply power to or cut off power from the voice processing module.
2. The voice control circuit of claim 1, wherein the switching module comprises a first switching tube and a first resistor; the control end of the first switching tube is electrically connected with one end of the first resistor and the Bluetooth transmitting module respectively, the first conduction end of the first switching tube is electrically connected with the voice processing module, and the second conduction end of the first switching tube is electrically connected with the other end of the first resistor and the power supply respectively.
3. The voice control circuit of claim 1, wherein the voice processing module comprises a boost unit, a voice processing unit, and a serial port unit; the voice processing unit is respectively and electrically connected with the boosting unit, the serial port unit and the voice acquisition module, the boosting unit is respectively and electrically connected with the switch module and the serial port unit, the serial port unit is electrically connected with the Bluetooth transmission module, and the serial port unit is used for being electrically connected with the power supply.
4. The voice control circuit of claim 3, wherein the voice processing unit comprises a voice processing chip; the input end of the voice processing chip is electrically connected with the voice acquisition module, the output end of the voice processing chip is electrically connected with the serial port unit, and the power end of the voice processing chip is electrically connected with the boosting unit.
5. The voice control circuit of claim 3, wherein the boost unit comprises a boost chip, a first inductor, a first diode, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, and a sixth capacitor; the induction pin of the boost chip is respectively and electrically connected with one end of the first inductor and the positive electrode of the first diode, the other end of the first inductor is respectively and electrically connected with the positive electrode of the first capacitor, the positive electrode of the second capacitor, the positive electrode of the third capacitor and the switch module, the negative electrode of the first diode is respectively and electrically connected with the output pin of the boost chip, the positive electrode of the fourth capacitor, the positive electrode of the fifth capacitor, the positive electrode of the sixth capacitor, the voice processing unit and the serial port unit, and the grounding pin of the boost chip, the negative electrode of the first capacitor, the negative electrode of the second capacitor, the negative electrode of the third capacitor, the negative electrode of the fourth capacitor, the negative electrode of the fifth capacitor and the negative electrode of the sixth capacitor are all grounded.
6. The voice control circuit of claim 3, wherein the serial port unit comprises a second resistor, a third resistor, and a second diode; one end of the second resistor is electrically connected with the boosting unit, the other end of the second resistor is electrically connected with the negative electrode of the second diode and the voice processing unit respectively, the positive electrode of the second diode is electrically connected with the Bluetooth transmitting module and one end of the third resistor respectively, and the other end of the third resistor is electrically connected with the power supply.
7. The voice control circuit of claim 1, wherein the bluetooth transmitting module comprises a bluetooth transmitting unit and an antenna; the Bluetooth transmitting unit is respectively and electrically connected with the antenna, the key module, the switch module and the voice processing module, and the antenna is used for communicating with the upper computer.
8. The voice control circuit of claim 7, wherein the bluetooth transmitting unit comprises a bluetooth chip; the input end of the Bluetooth chip is electrically connected with the voice processing module, the output end of the Bluetooth chip is electrically connected with the antenna, the key scanning end of the Bluetooth chip is electrically connected with the key module, and the control end of the Bluetooth chip is electrically connected with the switch module.
9. The voice control circuit of any of claims 1-8, wherein the voice acquisition module comprises a microphone, a fourth resistor, a seventh capacitor, and an eighth capacitor; the positive pole of the microphone is respectively and electrically connected with the positive pole of the seventh capacitor and one end of the fourth resistor, the negative pole of the seventh capacitor is electrically connected with the voice processing module, the other end of the fourth resistor is respectively and electrically connected with the positive pole of the eighth capacitor and the voice processing module, and the negative pole of the eighth capacitor and the negative pole of the microphone are grounded.
10. A remote control comprising the speech control circuit of any one of claims 1-9.
CN202322306498.1U 2023-08-25 2023-08-25 Voice control circuit and remote controller Active CN220855846U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322306498.1U CN220855846U (en) 2023-08-25 2023-08-25 Voice control circuit and remote controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322306498.1U CN220855846U (en) 2023-08-25 2023-08-25 Voice control circuit and remote controller

Publications (1)

Publication Number Publication Date
CN220855846U true CN220855846U (en) 2024-04-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Link
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