Control terminal and electronic device

Abstract

The application discloses a control terminal and electronic equipment, the control terminal comprises: a shell, the shell comprises a first surface and a second surface arranged oppositely, and a side surface connecting the first surface and the second surface; a first sound pickup device and a second sound pickup device are arranged on different side surfaces of the shell, the first sound pickup device and the second sound pickup device are used for receiving external sound signals, and outputting the sound signals after converting the sound signals into electric signals; a control component is electrically connected with the first sound pickup device and the second sound pickup device respectively, the control component is used for determining a corresponding control instruction according to the received electric signal when receiving the electric signal output by any one of the first sound pickup device and the second sound pickup device, and outputting a corresponding control signal to an external terminal equipment to control the terminal equipment to work. The application can solve the problem that the existing control terminal cannot normally pick up external sound signals.

Description

Technical Field

[0001] This invention relates to the field of control terminal technology, and in particular to a control terminal and electronic device. Background Technology

[0002] Most current voice remote controls are designed for handheld use. After manually pressing a button to trigger the voice recognition module, the microphone captures the user's voice commands, which are then parsed by the MCU and transmitted via infrared to control the TV. With technological advancements, remote controls now utilize microphone arrays for far-field voice recognition, addressing the growing need to free the user's hands. A conventional design places a microphone on the top of the remote to provide far-field sound pickup and recognize user commands. However, this design has a common problem in practical use: users often place the remote control haphazardly, resulting in a high probability of it being placed upside down. This obstructs the microphone's pickup channel, preventing it from properly picking up external sound signals and thus failing to respond to user control commands. Summary of the Invention

[0003] The main objective of this invention is to propose a control terminal that addresses the problem that existing control terminals often fail to properly pick up external sound signals.

[0004] To achieve the above objectives, the control terminal proposed in this invention includes:

[0005] A housing, the housing including a first surface and a second surface disposed opposite to each other, and a side surface connecting the first surface and the second surface;

[0006] The first and second sound pickup devices are respectively disposed on different side surfaces of the housing. The first and second sound pickup devices are used to receive external sound signals and convert the sound signals into electrical signals for output.

[0007] A control component is electrically connected to the first pickup device and the second pickup device respectively. When the control component receives an electrical signal output from either the first pickup device or the second pickup device, it determines the corresponding control command based on the received electrical signal and outputs the corresponding control signal to an external terminal device to control the terminal device to work.

[0008] Optionally, the control component is further configured to compare the trigger electrical signal with a preset electrical signal when a trigger electrical signal is received, and to control the first pickup device and / or the second pickup device to operate when the trigger electrical signal matches the preset electrical signal.

[0009] Optionally, the control component is further configured to determine the posture of the control terminal when a trigger electrical signal is received, and to control the first pickup device to work when the control terminal is determined to be in a first preset posture, or to control the second pickup device to work when the control terminal is determined to be in a second preset posture.

[0010] Optionally, the control component is further configured to control the first pickup device to operate when a trigger electrical signal is received;

[0011] The control component is further configured to control the first pickup device to stop working and control the second pickup device to work if no electrical signal output by the first pickup device is received within a preset time after the first pickup device is controlled to work.

[0012] Optionally, the control terminal further includes:

[0013] An attitude detection device, the output of which is connected to the control component, is used to detect the attitude of the control terminal and output a corresponding attitude detection signal to the control component.

[0014] The control component is also used to determine the attitude of the control terminal based on the attitude detection signal, and to control the first pickup device to work when the control terminal is determined to be in a first preset attitude, or to control the second pickup device to work when the control terminal is determined to be in a second preset attitude.

[0015] Optionally, the control terminal further includes:

[0016] Power supply;

[0017] A switching circuit, wherein the input terminal of the switching circuit is connected to the power supply, the first output terminal of the switching circuit is connected to the first pickup device, the second output terminal of the switching circuit is connected to the second pickup device, and the controlled terminal of the switching circuit is connected to the control component.

[0018] The control component is also configured to, when the control terminal is determined to be in a first preset posture according to the posture detection signal, control the switch switching circuit to control the power supply to be electrically connected to the first pickup device so that the first pickup device can work, or when the control terminal is determined to be in a second preset posture according to the posture detection signal, control the switch switching circuit to control the power supply to be electrically connected to the second pickup device so that the second pickup device can work.

[0019] Optionally, the control terminal further includes:

[0020] A trigger pickup device is disposed on the side surface of the housing. The trigger pickup device is used to receive external sound signals and, when the sound pressure of the received sound signal is greater than a preset sound pressure, converts the sound signal into an electrical signal and outputs it to the control component.

[0021] The control component is further configured to, upon receiving an electrical signal output by the trigger pickup device and when the electrical signal output by the trigger pickup device matches a preset electrical signal, control the first pickup device and / or the second pickup device to operate, and convert the sound signal into an electrical signal and output it to the control component.

[0022] Optionally, when the first pickup device is working, the control component is further configured to determine the corresponding control command based on the received electrical signal when it receives the first pickup device and the electrical signal that triggers the output of the pickup device, and output the corresponding control signal to the external terminal device to control the terminal device to work.

[0023] When the second pickup device is working, the control component is also used to determine the corresponding control command based on the received electrical signal according to the second pickup device and the electrical signal output by the triggering pickup device, and output the corresponding control signal to the external terminal device to control the terminal device to work.

[0024] Optionally, the control component is further configured to control the first pickup device and / or the second pickup device to stop working when no electrical signal output by the trigger pickup device is received within a preset time period.

[0025] The present invention also proposes an electronic device, which includes a terminal device and the aforementioned control terminal.

[0026] In the technical solution of this invention, by distributing the first and second microphones on different surfaces of the control terminal, it is ensured that no matter how the user places the control terminal, at least one microphone can pick up external sound signals, thereby providing the user with far-field microphone functionality to respond to the user's control commands, freeing the user's hands, improving the convenience and stability of the control terminal, and solving the problem that existing control terminals are prone to failing to pick up voice signals properly. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1This is a three-view structural diagram of an embodiment of the control terminal of the present invention;

[0029] Figure 2 This is a schematic diagram of the functional modules of a control terminal according to an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the circuit structure of a control terminal according to an embodiment of the present invention.

[0031] Explanation of icon numbers:

[0032] label name label name 10 First pickup device 50 Power supply 20 Second pickup device 60 Switching circuit 30 Control components 70 Sound pickup trigger device 40 Attitude detection device

[0033] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0037] This invention proposes a control terminal.

[0038] Currently, the conventional design places a microphone on the top surface of the remote control (the side with the buttons) to provide far-field sound pickup and recognize user commands. However, this design has a common problem in practical use: users often place the voice remote control haphazardly, resulting in a high probability of it being placed upside down (top facing down). This obstructs the microphone's pickup channel, preventing it from properly picking up voice signals and thus failing to respond to the user's control commands.

[0039] To solve the above problems, refer to Figures 1 to 3 In one embodiment, the control terminal includes:

[0040] A housing, the housing including a first surface and a second surface disposed opposite to each other, and a side surface connecting the first surface and the second surface;

[0041] The first pickup device 10 and the second pickup device 20 are respectively disposed on different side surfaces of the housing. The first pickup device 10 and the second pickup device 20 are used to receive external sound signals and convert the sound signals into electrical signals for output.

[0042] The control component 30 is electrically connected to the first pickup device 10 and the second pickup device 20 respectively. When the control component 30 receives an electrical signal output from either the first pickup device 10 or the second pickup device 20, it determines the corresponding control command based on the received electrical signal and outputs the corresponding control signal to the external terminal device to control the terminal device to work.

[0043] In this embodiment, the housing can be divided into a first surface, a second surface, and a side surface, for example, referring to... Figure 1 , Figure 1 The following are three views of a control terminal implementation, where A is the front view of the control terminal, B is the rear view of the control terminal, and C is the side view of the control terminal. Figure 1 As shown, when the control terminal is a remote control, the front of the remote control with buttons is the first surface of the housing, and the back opposite the front is the second surface of the housing. The surface connecting the front and back of the remote control is the side surface of the housing. The control terminal has two microphones, which can be microphones, etc. The two microphones are located on different side surfaces of the housing, for example... Figure 1As shown, the first microphone 10 is disposed on the first surface of the housing, i.e., the front of the control terminal, and the second microphone 20 can be disposed on the second surface. Thus, regardless of how the user positions the control terminal, one microphone port will always be unobstructed, allowing for normal sound reception. This enables the user to send control commands to the control terminal via voice, enabling the control terminal to control external terminal devices. It is understood that the number of microphones can be set to multiple based on application requirements, and these microphones can be disposed on different surfaces to achieve a more comprehensive sound reception effect. The control component 30 can be implemented using a microprocessor and an IR infrared controller. The microprocessor receives the electrical signals output by the microphones, processes the signals to determine the corresponding control commands, and controls the IR infrared controller to control the corresponding terminal devices via infrared, enabling operations such as power on / off and volume adjustment.

[0044] In this invention, by distributing the first microphone 10 and the second microphone 20 on different surfaces of the control terminal, it is ensured that at least one microphone can pick up external sound signals regardless of how the user positions the control terminal. This provides far-field microphone capability to respond to user control commands, freeing up the user's hands and improving the convenience and stability of the control terminal. Furthermore, the first microphone 10 and the second microphone 20 can be controlled to operate simultaneously, forming a dual-microphone linear array to pick up the user's far-field voice commands, thereby improving the microphone pickup effect of the control terminal and increasing the accuracy of control commands.

[0045] In one embodiment, the control component 30 is further configured to compare the trigger electrical signal with a preset electrical signal when a trigger electrical signal is received, and to control the first pickup device 10 and / or the second pickup device 20 to operate when the trigger electrical signal matches the preset electrical signal.

[0046] In this embodiment, the control component 30 only controls the pickup device to operate when it receives a trigger electrical signal and the trigger electrical signal matches a preset electrical signal. That is, when the control component 30 does not receive a trigger electrical signal, the pickup device does not operate. Thus, by setting the pickup device to only start operating when the control component 30 receives a trigger electrical signal, the control component 30 does not need to constantly process the electrical signal output by the pickup device, and the pickup device is in a stopped state, meaning no power supply is required. Therefore, the power consumption of the control terminal when not triggered can be significantly reduced, increasing the usage time of the control terminal. Understandably, a low-power microphone can be set on the control terminal, with a sound pressure level threshold set. When this low-power microphone receives the user's voice and the sound pressure level exceeds the threshold, it outputs an electrical signal to the control component 30, i.e., a trigger signal. The control component 30 then compares the trigger signal with a preset signal to determine if a wake-up word is present. When the control component 30 determines that the trigger signal matches the preset signal, i.e., a wake-up word is present, it controls the first microphone 10 and / or the second microphone 20 to operate. Alternatively, a touch button can be set on the control terminal to send a trigger signal to the control component 30. When the control component 30 receives the trigger signal, it then controls the first microphone 10 and / or the second microphone 20 to operate. In this way, the first microphone 10 and / or the second microphone 20 can be controlled to work only when the user wakes up, so that the first microphone 10 and the second microphone 20 do not work during the sleep period. This saves the operating energy consumption of the first microphone 10 and the second microphone 20, and also eliminates the need for the control component 30 to process electrical signals at all times, thereby reducing the overall power consumption of the control terminal.

[0047] In one embodiment, the control component 30 is further configured to determine the posture of the control terminal when a trigger electrical signal is received, and to control the first pickup device 10 to work when the control terminal is determined to be in a first preset posture, or to control the second pickup device 20 to work when the control terminal is determined to be in a second preset posture.

[0048] In another embodiment, when the control component 30 receives a trigger electrical signal, it can also determine the posture of the control terminal, that is, determine the placement posture of the control terminal, thereby determining which side of the control terminal is not pressed, and then controlling the unpressed pickup device to work to pick up the user's voice commands. For example, the first pickup device 10 is disposed on the first surface of the control terminal, and the second pickup device 20 is disposed on the second surface of the control terminal. When the control component 30 receives the trigger electrical signal, it determines the posture of the control terminal. When the first surface of the control terminal is placed upwards, that is, in the first preset posture, the first pickup device 10 is not pressed, and the first pickup device 10 is controlled to work. Conversely, when the second surface of the control terminal is placed upwards, that is, in the second preset posture, the second pickup device 20 is not pressed, and the second pickup device 20 is controlled to work. This configuration allows the control component 30 to control the appropriate microphone based on the posture of the control terminal, thus enabling voice control functionality with only one microphone working. Compared to controlling two microphones to work simultaneously, this reduces the power consumption of one microphone working, thereby lowering the overall power consumption of the control terminal.

[0049] In one embodiment, the control component 30 is further configured to control the first pickup device 10 to operate when a trigger electrical signal is received;

[0050] The control component 30 is further configured to control the first pickup device 10 to stop working and control the second pickup device 20 to work when no electrical signal output by the first pickup device 10 is received within a preset time after the first pickup device 10 is controlled to work.

[0051] It is understood that a working priority can be set between the first pickup device 10 and the second pickup device 20. In one embodiment, the working priority of the first pickup device 10 and the second pickup device 20 is set to the first pickup device 10 working first. For example, when the control component 30 receives a trigger electrical signal, it controls the first pickup device 10 to work. At this time, the first pickup device 10 picks up sound. If the placement posture of the control terminal covers the first pickup device 10, it will cause the first pickup device 10 to not pick up sound or have poor sound reception. In this case, the control component 30 does not receive the electrical signal output by the first pickup device 10, or the received electrical signal is weak and intermittent. In this way, by setting a reaction time, or a preset time, if the control component 30 does not receive an electrical signal output by the first pickup device 10 within the preset time, or if the received electrical signal is weak and intermittent, the first pickup device 10 will stop working, and the second pickup device 20 will be controlled to work, switching the control terminal to work with the second pickup device 20. This allows the control terminal to switch to the second pickup device 20 when the first pickup device 10 cannot pick up sound normally, achieving intelligent switching of sound reception. This ensures that the control terminal can realize remote sound pickup control function, improving the practicality and convenience of the control terminal.

[0052] Reference Figures 1 to 3 In one embodiment, the control terminal further includes:

[0053] An attitude detection device 40 is provided, the output of which is connected to the control component 30. The attitude detection device 40 is used to detect the attitude of the control terminal and output a corresponding attitude detection signal to the control component 30.

[0054] The control component 30 is further configured to determine the attitude of the control terminal based on the attitude detection signal, and control the first pickup device 10 to work when the control terminal is determined to be in a first preset attitude, or control the second pickup device 20 to work when the control terminal is determined to be in a second preset attitude.

[0055] The attitude detection device 40 can be implemented using an accelerometer, gyroscope, level sensor, etc., to detect the attitude of the control terminal. In one embodiment, an accelerometer is used to implement the attitude detection device 40. The microprocessor in the control component 30 accesses the accelerometer through an I2C interface and determines the attitude of the control terminal based on the Z-axis data of the accelerometer, thereby determining which side of the control terminal is facing upwards. For example, the first pickup device 10 is disposed on the first surface of the control terminal, and the second pickup device 20 is disposed on the second surface of the control terminal. When the Z-axis data of the velocity sensor is positive, that is, when the first surface of the control terminal is facing upwards, the control terminal is in a first preset attitude, and the first pickup device 10 is controlled to work. Conversely, when the Z-axis data of the velocity sensor is negative, that is, when the second surface of the control terminal is facing upwards, the control terminal is in a second preset attitude, and the second pickup device 20 is controlled to work. This configuration allows the control component 30 to control the appropriate microphone based on the posture of the control terminal, thus enabling voice control functionality with only one microphone working. Compared to controlling two microphones to work simultaneously, this reduces the power consumption of one microphone working, thereby lowering the overall power consumption of the control terminal.

[0056] In one embodiment, the control terminal further includes:

[0057] Power supply 50;

[0058] A switch switching circuit 60 is provided, the input terminal of which is connected to the power supply 50, the first output terminal of which is connected to the first pickup device 10, the second output terminal of which is connected to the second pickup device 20, and the controlled terminal of which is connected to the control component 30.

[0059] The control component 30 is further configured to, when the control terminal is determined to be in a first preset posture according to the posture detection signal, control the switch switching circuit 60 to control the power supply 50 to be electrically connected to the first pickup device 10 so that the first pickup device 10 can work; or when the control terminal is determined to be in a second preset posture according to the posture detection signal, control the switch switching circuit 60 to control the power supply 50 to be electrically connected to the second pickup device 20 so that the second pickup device 20 can work.

[0060] In this embodiment, the switch switching circuit 60 can be implemented using a switching device. The switching device is connected in series between the pickup device and the power supply 50, allowing the control component 30 to control the pickup device to operate or stop operating by controlling the switching device to turn it on or off. (Refer to...) Figure 3 , Figure 3The diagram illustrates the structure of a control terminal according to one embodiment. When the control terminal is determined to be in a first preset posture based on the posture detection signal, the control component 30 controls the switch SW2 to close, thereby enabling the power supply 50 to supply power to the first microphone 10, thus activating the first microphone 10. When the control component 30 determines that the control terminal is in a second preset posture based on the posture detection signal, the control component 30 controls the switch SW3 to close, thereby enabling the power supply 50 to supply power to the second microphone 20, thus activating the second microphone 20.

[0061] Reference Figures 1 to 3 In one embodiment, the control terminal further includes:

[0062] A trigger pickup device 70 is disposed on the side surface of the housing. The trigger pickup device 70 is used to receive external sound signals, and when the sound pressure of the received sound signal is greater than a preset sound pressure, it converts the sound signal into an electrical signal and outputs it to the control component 30.

[0063] The control component 30 is further configured to control the first pickup device 10 and / or the second pickup device 20 to operate when it receives an electrical signal output by the trigger pickup device 70 and the electrical signal output by the trigger pickup device 70 matches a preset electrical signal, so that the first pickup device 10 and / or the second pickup device 20 receive external sound signals and convert the sound signals into electrical signals before outputting them to the control component 30.

[0064] In this embodiment, the trigger pickup device 70 can be implemented using a microphone. The trigger pickup device 70 can be a low-power microphone with a set sound pressure threshold. When this low-power pickup device receives the user's voice and the sound pressure exceeds the sound pressure threshold, it outputs an electrical signal to the control component 30, i.e., a trigger electrical signal. The control component 30 then compares the trigger electrical signal with a preset electrical signal to determine if a wake-up word is present. When the control component 30 determines that the trigger electrical signal matches the preset electrical signal, i.e., a wake-up word is present, it controls the first pickup device 10 and / or the second pickup device 20 to operate. Thus, by setting the first pickup device 10 and the second pickup device 20 to only start operating when the control component 30 receives the trigger electrical signal, the control component 30 does not need to constantly process the electrical signals output by the pickup devices, and the pickup devices are in a stopped state, i.e., no power supply is required. Therefore, the power consumption of the control terminal when not triggered can be significantly reduced, increasing the usage time of the control terminal. Furthermore, the trigger pickup device 70 is placed on the side surface of the control terminal. In this way, regardless of whether the control terminal is placed in a front or back position, the pickup device 70 will not affect the audio pickup. This allows the user to smoothly control the first pickup device 10 and / or the second pickup device 20 through the trigger pickup device 70, thereby realizing the remote audio pickup control function.

[0065] In one embodiment, when the first pickup device 10 is working, the control component 30 is further configured to determine the corresponding control command based on the received electrical signal when receiving the electrical signal output by the first pickup device 10 and the trigger pickup device 70, and output the corresponding control signal to the external terminal device to control the terminal device to work.

[0066] When the second pickup device 20 is working, the control component 30 is also used to determine the corresponding control command based on the electrical signal received from the second pickup device 20 and the trigger pickup device 70, and output the corresponding control signal to the external terminal device to control the terminal device to work.

[0067] It is understandable that, in addition to outputting trigger electrical signals, the trigger pickup device 70 can also synchronously receive user voice when the first pickup device 10 or the second pickup device 20 is working. It forms a dual-microphone linear array with the first pickup device 10 or the second pickup device 20 to pick up the user's far-field voice commands, improving the pickup effect of the control terminal and increasing the accuracy of control commands. For example, when the first pickup device 10 is working, the trigger pickup device 70 and the first pickup device 10 form a dual-microphone linear array to pick up the user's far-field voice commands. The picked-up audio data is sent to the voice recognition module of the control component 30 for voice command recognition, and commands are sent to the external terminal device through the infrared component of the control component 30 to complete the operation of the remote control terminal device. Similarly, when the second pickup device 20 is working, the trigger pickup device 70 and the second pickup device 20 form a dual-microphone linear array to complete the operation of the remote control terminal device.

[0068] In one embodiment, the control component 30 is further configured to control the first pickup device 10 and / or the second pickup device 20 to stop working when no electrical signal output by the trigger pickup device 70 is received within a preset time period.

[0069] In this embodiment, when the user does not perform voice control for a period of time, that is, when the control component 30 does not receive an electrical signal from the trigger pickup device 70 within a preset time period, it can be determined that the user does not need to perform voice control. Therefore, the control component 30 controls the first pickup device 10 and / or the second pickup device 20 to stop working to save system power consumption. When the user outputs a trigger electrical signal through the trigger pickup device 70, the first pickup device 10 and / or the second pickup device 20 are then controlled to work again. This configuration solves the far-field pickup problem of the control terminal under different placements while fully considering system power consumption and meeting the user's product requirements.

[0070] To better illustrate the inventive concept of this invention, the working principle of this invention will be explained in conjunction with the above embodiments, with reference to... Figure 3 , Figure 3 This is a circuit structure diagram of a control terminal embodiment. The control component 30 in the diagram includes a microprocessor (MCU).

[0071] When the control terminal is powered on, the microprocessor MCU initializes the trigger pickup device 70 and configures the sound pressure trigger threshold; it controls the power switches SW2 and SW3 of the first pickup device 10 and the second pickup device 20 to be in the off state, thereby saving system power consumption.

[0072] When the end user issues a voice command to the control terminal, and the sound pressure level of the sound signal received by the trigger pickup device 70 is higher than the preset sound pressure trigger threshold, the trigger pickup device 70 converts the user's voice signal into an electrical signal and sends it to the microprocessor MCU.

[0073] The speech recognition module of the microprocessor (MCU) performs wake-up word detection on the input electrical signal, which means comparing the trigger electrical signal with a preset electrical signal. When a wake-up word is successfully detected, i.e., the trigger electrical signal matches the preset electrical signal, the following operations are performed:

[0074] The microprocessor (MCU) accesses the accelerometer, i.e. the attitude detection device 40, through the I2C interface, and determines the attitude of the control terminal (whether it is placed face up or face down) through the data of the Z-axis.

[0075] If the microprocessor MCU determines that the control terminal is placed facing forward, i.e., in the first preset posture, it controls the power switch SW2 to close, and the first microphone 10 operates normally; the power supply to the second microphone 20 remains off to save system power consumption. The microphone 70 and the first microphone 10 are triggered to form a dual-microphone linear array to pick up the user's far-field voice commands. The dual-microphone linear array sends the picked-up audio data to the voice recognition module of the microprocessor MCU for voice command recognition, and sends commands via IR infrared to complete the operation of the remote control external terminal device; if the microprocessor MCU does not receive new control commands for a period of time, it controls the power switch SW2 to close again, and the first microphone 10 stops working, saving system power consumption.

[0076] Similarly, if the microprocessor MCU determines that the control terminal is placed in the reverse position, i.e., the second preset posture, it controls the power switch SW3 to close, and the second microphone 20 operates normally. The power supply to the first microphone 10 remains off, saving system power consumption. The microphone 70 and the second microphone 20 are triggered to form a dual-microphone linear array to pick up the user's voice commands. The dual-microphone linear array sends the picked-up audio data to the microprocessor MCU's voice recognition module for voice command recognition and sends commands via IR infrared to complete the operation of the remote control external terminal device. If the microprocessor MCU does not receive new control commands for a period of time, it re-opens the power switch SW3, and the second microphone 20 stops working, saving system power consumption.

[0077] If the voice recognition module of the microprocessor MCU does not detect the wake-up keyword, that is, when the trigger electrical signal does not match the preset electrical signal, it is considered that the voice captured by the trigger pickup device 70 is not a voice command issued by the user; the power switches SW2 and SW3 remain open, and only the trigger pickup device 70 remains working, waiting for the next trigger.

[0078] In this invention, a low-power trigger pickup device 70 is used for voice monitoring and pickup. Two conventional pickup devices, a first pickup device 10 and a second pickup device 20, work in conjunction with the low-power trigger pickup device 70 to form a dual-microphone linear array, providing far-field pickup functionality. The control component 30 determines the orientation of the control terminal using an attitude detection device 40 and decides which conventional pickup device is active based on the orientation. This invention solves the far-field pickup problem of the control terminal under different placements, ensuring that at least one conventional pickup device can pick up external sound signals regardless of the user's placement, thus providing far-field pickup functionality to respond to user control commands, freeing the user's hands, and improving the convenience and stability of the control terminal. Simultaneously, this invention fully considers system power consumption. When the user does not trigger voice control, only the low-power trigger pickup device 70 operates; the first pickup device 10 and the second pickup device 20 only operate when the user triggers voice control, and remain inactive at other times, significantly reducing the power consumption of the control terminal and meeting the user's product requirements.

[0079] The present invention also proposes an electronic device, which includes a terminal device and the aforementioned control terminal. The specific structure of the control terminal is as described in the above embodiments. Since this electronic device employs the aforementioned...

[0080] All the technical solutions of the embodiments are provided, and therefore have at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be repeated here.

[0081] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structures made using the description and drawings of the present invention within the inventive concept of the present invention are not applicable.

[0082] Any modifications or direct / indirect applications in other related technical fields are included within the scope of patent protection of this invention.

Claims

1. A control terminal, characterized in that, include: The housing includes a first surface and a second surface disposed opposite to each other, and a side surface connecting the first surface and the second surface, wherein the first surface is the front of the control terminal and the second surface is the back of the control terminal; The first and second sound pickup devices are respectively disposed on different side surfaces of the housing. The first and second sound pickup devices are used to receive external sound signals and convert the sound signals into electrical signals for output. A control component is electrically connected to the first pickup device and the second pickup device respectively. The control component is used to determine the corresponding control command based on the received electrical signal when it receives an electrical signal output from either the first pickup device or the second pickup device, and output the corresponding control signal to the external terminal device to control the terminal device to work. The control component is also used to control the first pickup device to work when a trigger electrical signal is received, wherein the working priority of the first pickup device is higher than that of the second pickup device; The control component is also used to control the first pickup device to stop working and control the second pickup device to work when no electrical signal output by the first pickup device is received within a preset time after the first pickup device is controlled to work. The control terminal also includes: A trigger pickup device is disposed on the side surface of the housing. The trigger pickup device is used to receive external sound signals and, when the sound pressure of the received sound signal is greater than a preset sound pressure, converts the sound signal into an electrical signal and outputs it to the control component. The side surface is the surface on which the trigger pickup device can pick up audio regardless of whether the control terminal is placed on the front or the back. The control component is further configured to, upon receiving an electrical signal output by the trigger pickup device and when the electrical signal output by the trigger pickup device matches a preset electrical signal, control the first pickup device and / or the second pickup device to operate, and convert the sound signal into an electrical signal and output it to the control component. The control terminal also includes: Power supply; A switching circuit, wherein the input terminal of the switching circuit is connected to the power supply, the first output terminal of the switching circuit is connected to the first pickup device, the second output terminal of the switching circuit is connected to the second pickup device, and the controlled terminal of the switching circuit is connected to the control component. The control component is also configured to, when the control terminal is determined to be in a first preset posture according to the posture detection signal, control the switch switching circuit to control the power supply to be electrically connected to the first pickup device so that the first pickup device can work, or when the control terminal is determined to be in a second preset posture according to the posture detection signal, control the switch switching circuit to control the power supply to be electrically connected to the second pickup device so that the second pickup device can work.

2. The control terminal as described in claim 1, characterized in that, The control component is also used to compare the trigger electrical signal with a preset electrical signal when a trigger electrical signal is received, and to control the first pickup device and / or the second pickup device to work when the trigger electrical signal matches the preset electrical signal.

3. The control terminal as described in claim 1, characterized in that, The control component is also used to determine the posture of the control terminal when a trigger electrical signal is received, and to control the first pickup device to work when the control terminal is determined to be in a first preset posture, or to control the second pickup device to work when the control terminal is determined to be in a second preset posture.

4. The control terminal as described in claim 3, characterized in that, The control terminal also includes: An attitude detection device, the output of which is connected to the control component, is used to detect the attitude of the control terminal and output a corresponding attitude detection signal to the control component. The control component is also used to determine the attitude of the control terminal based on the attitude detection signal.

5. The control terminal as described in claim 1, characterized in that, When the first pickup device is working, the control component is also used to determine the corresponding control command based on the received electrical signal when it receives the first pickup device and the electrical signal that triggers the output of the pickup device, and output the corresponding control signal to the external terminal device to control the terminal device to work. When the second pickup device is working, the control component is also used to determine the corresponding control command based on the received electrical signal according to the second pickup device and the electrical signal output by the triggering pickup device, and output the corresponding control signal to the external terminal device to control the terminal device to work.

6. The control terminal as described in claim 1, characterized in that, The control component is also used to control the first pickup device and / or the second pickup device to stop working when no electrical signal is received from the trigger pickup device within a preset time period.

7. An electronic device, characterized in that, It includes terminal equipment and the control terminal as described in any one of claims 1-6.

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