Key control circuit, method, device, apparatus, storage medium and remote controller

Abstract

The application relates to a key control circuit, method, device, equipment, storage medium and remote controller, and relates to the technical field of electronics. The key control circuit comprises a key module, a power supply module, a control module and a power supply control module; the key module is used for simultaneously turning on a passage between the power supply module and the control module and a key code signal triggering passage when the key module is operated; the control module is used for starting timing and outputting a first control signal to the power supply control module when a power supply signal is acquired in a power-off state, the first control signal is used for controlling the power supply control module to be turned on, so that the control module is powered by the power supply module within a preset delay time length; when the key module is not operated within the preset delay time length, a second control signal is output to the power supply control module, the second control signal is used for controlling the power supply control module to be turned off, so that the control module is stopped being powered by the power supply module. The application is used for solving the problem that the power consumption of the remote controller is large in standby mode.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a key control circuit, method, device, equipment, storage medium and remote controller. Background Technology

[0002] Standby power consumption in remote controls has always been a key design focus and challenge. Currently, when the remote control is not in use, the main control chip is in standby mode; when the remote control is used, the main control chip is in normal operating mode. Reducing the standby power consumption of the main control chip in the remote control is crucial to meeting the low power consumption requirements of the remote control.

[0003] Although the standby power consumption of the main control chip is low, the remote control still consumes power in standby mode. This power consumption often accounts for a large proportion of the battery life of the remote control. How to solve the standby power consumption problem will determine the overall battery life of battery-powered remote controls. Summary of the Invention

[0004] This application provides a button control circuit, method, apparatus, device, storage medium, and remote controller to solve the problem of high power consumption in the standby mode of the remote controller.

[0005] In a first aspect, embodiments of this application provide a button control circuit, including a button module, a power module, a control module, and a power supply control module;

[0006] The power supply control module is connected between the power supply module and the control module, the control terminal of the control module is connected to the controlled terminal of the power supply control module, and the output terminal of the button module is connected to the input terminal of the control module.

[0007] The button module is used to simultaneously activate the path between the power module and the control module, as well as the button encoding signal trigger path, when operated. The button encoding signal trigger path refers to the path between different input terminals of the control module. The path between the power module and the control module is used to provide a power signal to the control module, and the button encoding signal trigger path is used to output a button encoding signal to the control module.

[0008] The control module is configured to, upon receiving the power signal in a power-off state, start a timer and output a first control signal to the power supply control module. The first control signal is used to control the power supply control module to be turned on, so that the power module supplies power to the control module within a preset delay period. If the button module is not operated within the preset delay period, the control module outputs a second control signal to the power supply control module. The second control signal is used to control the power supply control module to be turned off, so that the power module stops supplying power to the control module.

[0009] Optionally, the control module is further configured to receive a key encoding signal output by the key module, execute the operation corresponding to the key encoding signal, and restart the timing when the key module is operated within the preset delay period.

[0010] Optionally, the power supply control module includes a field-effect transistor and a resistor;

[0011] The first terminal of the power supply module is connected to the source of the field-effect transistor (FET), the second terminal of the power supply module is connected to the first terminal of the control module, the drain of the FET is connected to the second terminal of the control module, the control terminal of the control module is connected to the gate of the FET, the first terminal of the resistor is connected to the gate of the FET, and the second terminal of the resistor is connected to the source of the FET.

[0012] Optionally, the field-effect transistor is a PMOS transistor;

[0013] The positive terminal of the power supply module is connected to the source terminal of the field-effect transistor, and the negative terminal of the power supply module is connected to the first terminal of the control module.

[0014] Optionally, the first end of the button module is connected to the positive terminal of the power module, and the second end of the button module is connected to the second end of the control module.

[0015] Optionally, the first end of the button module is connected to the gate of the field-effect transistor, and the second end of the button module is connected to the negative terminal of the power supply module.

[0016] Optionally, the field-effect transistor is an NMOS transistor;

[0017] The negative terminal of the power supply module is connected to the source terminal of the field-effect transistor, and the positive terminal of the power supply module is connected to the first terminal of the control module.

[0018] Optionally, the first end of the button module is connected to the negative terminal of the power module, and the second end of the button module is connected to the second end of the control module.

[0019] Optionally, the button module includes a button matrix circuit. The bottom structure of at least one button in the button matrix circuit is configured as a separate first part and a second part. The printed circuit board in contact with the bottom structure of the at least one button is provided with four contacts. When the at least one button is pressed, two contacts contact the first part to achieve conduction between the two contacts, thereby connecting the power module and the control module. The other two contacts contact the second part to achieve conduction between the other two contacts, thereby connecting the button encoding signal triggering path. This achieves simultaneous connection of the path between the power module and the control module and the button encoding signal triggering path.

[0020] Secondly, embodiments of this application provide a remote control, including the button control circuit described in the first aspect.

[0021] Thirdly, embodiments of this application provide a button control method, applied to the control module in the button control circuit described in the first aspect, the button control method comprising:

[0022] When the power signal is obtained in the power-off state, a timer is started and a first control signal is output to the power supply control module. The first control signal is used to control the power supply control module to be turned on so that the power module can supply power to the control module within a preset delay time.

[0023] If the button module is not operated within the preset delay period, a second control signal is output to the power supply control module. The second control signal is used to control the power supply control module to disconnect, so that the power module stops supplying power to the control module.

[0024] Optionally, the method further includes:

[0025] When the button module is operated within the preset delay period, the button module outputs a button encoding signal, performs the operation corresponding to the button encoding signal, and restarts the timing.

[0026] Fourthly, embodiments of this application provide a button control device, comprising a control module configured in the button control circuit described in the first aspect, including:

[0027] The first processing module is used to start timing and output a first control signal to the power supply control module when the power signal is obtained in the power-off state. The first control signal is used to control the power supply control module to be turned on so that the power supply module can supply power to the control module within a preset delay time.

[0028] The second processing module is used to output a second control signal to the power supply control module when the button module is not operated within the preset delay time. The second control signal is used to control the power supply control module to disconnect so that the power module stops supplying power to the control module.

[0029] Fifthly, embodiments of this application provide an electronic device, including: a processor, a memory, and a communication bus, wherein the processor and the memory communicate with each other via the communication bus;

[0030] The memory is used to store computer programs;

[0031] The processor is used to execute the program stored in the memory to implement the button control method described in the third aspect.

[0032] In a sixth aspect, embodiments of this application provide a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the key control method described in the third aspect.

[0033] Compared with the prior art, the technical solution provided in this application has the following advantages: In this application embodiment, the provided button control circuit, by adding a power supply control module between the power module and the control module, ensures that the control module is in a power-off state during standby. When the button module is operated, it can simultaneously activate the path between the power module and the control module, as well as the button encoding signal trigger path. Activating the path between the power module and the control module provides a power signal to the control module, and activating the button encoding signal trigger path outputs a button encoding signal to the control module. Since the path between the power module and the control module, as well as the button encoding signal trigger path, are activated simultaneously, the control module cannot receive the button encoding signal output by the button module when the button encoding signal trigger path is activated. When the button module is operated, simultaneously activating the path between the power module and the control module, as well as the button encoding signal trigger path, prevents interference between them and retains the original function of the button module in outputting button encoding signals to the control module.

[0034] When the control module receives a power signal from the button module when it is powered off, it controls the power supply control module to turn on via a first control signal. This allows the power module to supply power to the control module for a preset delay, providing sufficient time for the user to operate the button module and execute the operation corresponding to the button's coded signal after the control module is instantly powered on. Furthermore, if the button module is not operated within the preset delay, the control module controls the power supply control module to turn off via a second control signal, stopping the power supply to the control module and promptly cutting off power to reduce power consumption. This achieves zero power consumption in standby mode, solving the problem of high power consumption in remote controls during standby. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0036] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the key control circuit in an embodiment of this application;

[0038] Figure 2 This is a schematic diagram of the key control circuit in a specific embodiment of this application;

[0039] Figure 3 This is a schematic diagram of the button module in a specific embodiment of this application;

[0040] Figure 4 This is a schematic diagram of the structure of a key matrix circuit in the prior art;

[0041] Figure 5 This is a schematic diagram of the button module in a specific embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the key control circuit in a specific embodiment of this application;

[0043] Figure 7 This is a schematic diagram of the button module in a specific embodiment of this application;

[0044] Figure 8 This is a schematic diagram of a button in a specific embodiment of this application;

[0045] Figure 9This is a schematic diagram of a printed circuit board in contact with the bottom structure of the button in a specific embodiment of this application;

[0046] Figure 10 This is a schematic diagram of the button control method in the embodiments of this application;

[0047] Figure 11 This is a schematic diagram of the button control device in the embodiments of this application;

[0048] Figure 12 This is a schematic diagram of the structure of the electronic device in the embodiments of this application. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0050] In this embodiment of the application, a button control circuit is provided, such as... Figure 1 As shown, the button control circuit includes a button module 1, a power supply module 2, a control module 3, and a power supply control module 4.

[0051] The power supply control module 4 is connected between the power supply module 2 and the control module 3. The control terminal of the control module 3 is connected to the controlled terminal of the power supply control module 4, and the output terminal of the button module 1 is connected to the input terminal of the control module 3.

[0052] The output terminal of button module 1 is connected to the input terminal of control module 3. This does not change the connection relationship between each button in button module 1 and control module 3, nor does it affect the output of button encoding signals by button module 1, thus realizing the function of each button in button module 1.

[0053] The button module 1 is used to simultaneously connect the power module 2 and the control module 3, as well as the button encoding signal triggering path, when operated. The button encoding signal triggering path refers to the path between different input terminals of the control module 3. The path between the power module 2 and the control module 3 is used to provide power signals to the control module 3, and the button encoding signal triggering path is used to output button encoding signals to the control module 3.

[0054] For example, the first output terminal of button module 1 is connected to the first input terminal IO1 of control module 3, and the second output terminal of button module 1 is connected to the second input terminal IO5 of control module 3. The button encoding signal triggering path refers to the path between IO1 and IO5. When button module 1 is operated, the path between power module 2 and control module 3, as well as the path between IO1 and IO5, are simultaneously turned on. Since the path between power module and control module and the button encoding signal triggering path are turned on simultaneously, the control module cannot receive the button encoding signal output by button module when the button encoding signal triggering path is turned on.

[0055] The button module is activated by pressing at least one button. When the button module is activated, it momentarily turns on or short-circuits the power supply control module, establishing a connection between the power supply module and the control module, providing a momentary power signal to the control module, thus instantly energizing it.

[0056] The control module 3 is used to start a timer and output a first control signal to the power supply control module 4 when a power signal is received in the power-off state. The first control signal is used to control the power supply control module 4 to be turned on so that the power supply module 2 can supply power to the control module 3 within a preset delay time. When the button module 1 is not operated within the preset delay time, the control module 3 outputs a second control signal to the power supply control module 4. The second control signal is used to control the power supply control module 4 to be turned off so that the power supply module 2 stops supplying power to the control module 3.

[0057] The preset delay time is the duration from when the control module is activated by the button to when it automatically shuts off. Different preset delay times can be set according to different remote control usage habits.

[0058] The control module 3 includes at least a button detection control module. This module receives the button encoding signals output by the button module and executes the corresponding operations to achieve the normal function of the button module. Depending on the type of remote control, the control module 3 may also include other modules. For example, it may include an infrared transmitter module for an infrared remote control, a Bluetooth module for a Bluetooth remote control, an LCD display module for an air conditioner remote control, or an RF transmitter module for an RF remote control. This further reduces the power consumption of the remote control in standby mode.

[0059] By adding a power supply control module between the power module and the control module, the control module is powered off in standby mode. When the button module is operated, it simultaneously activates the pathway between the power module and the control module, as well as the button encoding signal triggering pathway. Activating the pathway between the power module and the control module provides power to the control module, while activating the button encoding signal triggering pathway outputs a button encoding signal to the control module. Because these pathways are activated simultaneously, the control module cannot receive the button encoding signal output by the button module when the button encoding signal triggering pathway is active. By activating both the pathways between the power module and the control module, as well as the button encoding signal triggering pathway, when the button module is operated, these pathways do not interfere with each other, and the original function of outputting button encoding signals to the control module is retained.

[0060] When the control module receives a power signal from the button module when it is powered off, it controls the power supply control module to turn on via a first control signal. This allows the power module to supply power to the control module for a preset delay, providing sufficient time for the user to operate the button module and execute the operation corresponding to the button's coded signal after the control module is instantly powered on. Furthermore, if the button module is not operated within the preset delay, the control module controls the power supply control module to turn off via a second control signal, stopping the power supply to the control module and promptly cutting off power to reduce power consumption. This achieves zero power consumption in standby mode, solving the problem of high power consumption in remote controls during standby.

[0061] In one specific embodiment, the control module 3 is further configured to receive the key encoding signal output by the key module 1 when the key module 1 is operated within a preset delay period, execute the operation corresponding to the key encoding signal, and restart the timing.

[0062] It can realize the normal function of the button module. For example, if the volume up button in the button module is pressed within a preset delay time, the control module will perform a volume increase operation. A preset delay time is given to the user, allowing sufficient time to operate the button module and execute the operation corresponding to the button's coded signal after the control module is momentarily powered on.

[0063] Furthermore, when the button module is operated within the preset delay time, the control module restarts the timing. This avoids the situation where, during multiple button operations, the time between the subsequent button operation and the moment the control module is instantly powered on after a power outage exceeds the preset delay time, causing the control module to lose power and requiring the button module to be operated again to instantly power on the control module and execute the operation corresponding to the button code signal again. This increases the number of operation steps and affects the user experience.

[0064] In one specific embodiment, the power supply control module includes a field-effect transistor and a resistor.

[0065] The first terminal of the power supply module is connected to the source of the field-effect transistor (FET), the second terminal of the power supply module is connected to the first terminal of the control module, the drain of the FET is connected to the second terminal of the control module, the control terminal of the control module is connected to the gate of the FET, the first terminal of the resistor is connected to the gate of the FET, and the second terminal of the resistor is connected to the source of the FET.

[0066] The field-effect transistor (FET) is normally in the off state, keeping the control module powered down during standby and achieving zero power consumption in standby mode. The control terminal of the control module is connected to the gate of the FET. A first control signal turns the FET on, keeping the control module powered on and operating normally. A second control signal turns the FET off, de-energizing the control module.

[0067] Specifically, the MOSFET model can be selected from those with a turn-on voltage lower than the power supply voltage of the power module and extremely low on-resistance.

[0068] The first end of the resistor is connected to the gate of the field-effect transistor (FET), and the second end of the resistor is connected to the source of the FET. This allows the FET to be in the off state under normal conditions, and also limits the current when the FET is turned on.

[0069] A power supply control module has been added to the existing button control circuit. The power supply control module includes field-effect transistors and resistors. The number of new electronic components is small and the cost is low.

[0070] In one specific embodiment, such as Figure 2 As shown, the power supply control module 4 includes a field-effect transistor and a resistor R1. The field-effect transistor is a PMOS transistor MOS1. Figure 2 In the diagram, power module 2 is represented by BATTERY1, indicating that power module 2 is a battery. Figure 2 In the diagram, the gate G of the field-effect transistor MOS1 is represented by GND1.

[0071] The positive terminal VBAT of power module 2 is connected to the source S of field-effect transistor MOS1, the negative terminal of power module 2 is connected to the first terminal GND of control module 3, the negative terminal of power module 2 is grounded, the drain D of field-effect transistor MOS1 is connected to the second terminal VCC of control module 3, the control terminal IO CONTROL of control module 3 is connected to the gate G of field-effect transistor MOS1, the first terminal of resistor R1 is connected to the gate G of field-effect transistor MOS1, and the second terminal of resistor R1 is connected to the source S of field-effect transistor MOS1. Figure 2 In the diagram, IO1 to IO8 are the input terminals of control module 3, used to connect to the output terminals of button module 1. Figure 2The number of input terminals of the control module 3 is for illustrative purposes only and does not limit the specific number of input terminals of the control module 3.

[0072] In standby mode, PMOS transistor MOS1 is in the off state. By disconnecting the connection between the positive terminal VBAT of power module 2 and the second terminal VCC of control module 3 through PMOS transistor MOS1, the control module is in a power-off state in standby mode, achieving zero power consumption of the control module in standby mode.

[0073] In one specific embodiment, such as Figure 2 and Figure 3 As shown, the first end of the button module 1 is connected to the positive terminal VBAT of the power supply module 2, and the second end of the button module 1 is connected to the second terminal VCC of the control module 3. Figure 3 In the circuit, button module 1 is a button matrix circuit, which includes 16 buttons, SW101 to SW116. IO1 to IO8 are the input terminals of control module 3, used to connect to the output terminals of button module 1. The 16 different button functions are triggered by the 8 input terminals of control module 3, which can save the number of input terminals of control module 3. Figure 3 In this diagram, the number of input terminals of control module 3 is for illustrative purposes only and does not limit the specific number of input terminals of control module 3. Similarly, the number of buttons is for illustrative purposes only and does not limit the specific number of buttons.

[0074] Figure 3 In this configuration, the first terminal of each button is connected to the positive terminal VBAT of the power module 2, and the second terminal of each button is connected to the second terminal VCC of the control module 3. This enables the remote control to be woken up by pressing any button. Depending on the needs, it is not necessary to add a first and second terminal to every button, nor is it necessary to connect the first terminal of each button to the positive terminal VBAT of the power module 2 and the second terminal of each button to the second terminal VCC of the control module 3. As long as at least one button in the button module 1 has a first and second terminal, with the first terminal connected to the positive terminal VBAT of the power module 2 and the second terminal connected to the second terminal VCC of the control module 3, it is possible to achieve a momentary short circuit in the power supply and control module when the button module is operated, thus establishing a connection between the power module and the control module and providing a momentary power signal to the control module, allowing it to be powered on instantly.

[0075] Figure 3 When the button module is operated, the path between the positive terminal VBAT of the power module 2 and the second terminal VCC of the control module 3 is directly connected, and the control module is instantly powered on. After the control module is instantly powered on, it outputs the first control signal to the gate G of the field-effect transistor MOS1. The first control signal is at a low level, the field-effect transistor MOS1 is turned on, and the control module remains powered on.

[0076] exist Figure 2 and Figure 3Based on this, after the control module is momentarily powered on, it outputs a first control signal to the gate G of the field-effect transistor MOS1. When the first control signal is low, MOS1 is turned on. The control module remains powered on for a preset delay period, receives the key code signal output by the key module, executes the operation corresponding to the key code signal, and restarts the timing. If the key module is not operated within the preset delay period, the control module outputs a second control signal to the gate G of MOS1. When the second control signal is high, MOS1 is turned off, the control module is powered off, and enters a no-power standby mode.

[0077] Figure 3 The following explanation uses the pressing of button SW101 as an example. When button SW101 is pressed, the path between IO1 and IO5, as well as the path between the positive terminal VBAT of power module 2 and the second terminal VCC of control module 3, are simultaneously and instantaneously connected. With the path between the positive terminal VBAT of power module 2 and the second terminal VCC of control module 3 connected, the control module is instantly powered on. The path between IO1 and IO5 is also connected, outputting the key code signal corresponding to button SW101. Since the control module can only receive the key code signal corresponding to button SW101 after being powered on, and these two paths are simultaneously connected, the control module cannot receive the key code signal corresponding to button SW101. This prevents the control module from mistakenly executing the operation corresponding to the key code signal when button SW101 is pressed and the control module is powered on.

[0078] The applicant discovered that in the prior art, such as Figure 4 As shown, the button matrix circuit includes 16 buttons, SW1 to SW16. IO1 to IO8 are the input terminals of the control module, used to connect to the output terminals of the button matrix circuit. The 16 different button functions are triggered by the 8 input terminals of the control module, which can save the number of input terminals of the control module. However, the bottom structure of each button in SW1 to SW16 is a single unit. The printed circuit board that each button contacts has two contacts. When the button is pressed, the two contacts make contact with the bottom structure of the button, realizing conduction between the two contacts. This can only output the button code signal corresponding to the button, and cannot instantly power the control module.

[0079] In one specific embodiment, such as Figure 2 and Figure 5 As shown, the first end of the button module 1 is connected to the gate G of the field-effect transistor MOS1, which is represented by GND1. The second end of the button module 1 is connected to the negative terminal GND of the power supply module 2. Figure 5In the circuit, button module 1 is a button matrix circuit, which includes 16 buttons, SW101 to SW116. IO1 to IO8 are the input terminals of control module 3, used to connect to the output terminals of button module 1. The 16 different button functions are triggered by the 8 input terminals of control module 3, which can save the number of input terminals of control module 3. Figure 5 In this diagram, the number of input terminals of control module 3 is for illustrative purposes only and does not limit the specific number of input terminals of control module 3. Similarly, the number of buttons is for illustrative purposes only and does not limit the specific number of buttons.

[0080] Figure 5 In this configuration, the first terminal of each button is connected to the gate G of the MOSFET 1, and the second terminal of each button is connected to the negative terminal GND of the power supply module 2. This enables the remote control to be woken up by pressing any button. Depending on the needs, it is not necessary to add a first and second terminal to every button. Furthermore, the first terminal of each button connected to the gate G of the MOSFET 1 and the second terminal connected to the negative terminal GND of the power supply module 2 are sufficient. As long as at least one button in the button module 1 has a first and second terminal, with the first terminal connected to the gate G of the MOSFET 1 and the second terminal connected to the negative terminal GND of the power supply module 2, the power supply control module can be instantly turned on when the button module is operated, establishing a path between the power supply module and the control module, providing a momentary power signal to the control module, thus instantly energizing it.

[0081] Figure 5 When the button module is operated, the path between the negative terminal GND of the power module 2 and the gate G of the field-effect transistor MOS1 is directly connected. The field-effect transistor MOS1 is turned on instantly, and the control module is powered on instantly. After the control module is powered on instantly, it outputs the first control signal to the gate G of the field-effect transistor MOS1. The first control signal is at a low level, the field-effect transistor MOS1 is turned on, and the control module remains powered on.

[0082] exist Figure 2 and Figure 5 Based on this, after the control module is momentarily powered on, it outputs a first control signal to the gate G of the field-effect transistor MOS1. When the first control signal is low, MOS1 is turned on. The control module remains powered on for a preset delay period, receives the key code signal output by the key module, executes the operation corresponding to the key code signal, and restarts the timing. If the key module is not operated within the preset delay period, the control module outputs a second control signal to the gate G of MOS1. When the second control signal is high, MOS1 is turned off, the control module is powered off, and enters a no-power standby mode.

[0083] Figure 5The following explanation uses the pressing of button SW101 as an example. When button SW101 is pressed, the paths between IO1 and IO5, as well as between the negative terminal GND of power module 2 and the gate G of MOSFET 1, are simultaneously and instantaneously connected. With the path between the negative terminal GND of power module 2 and the gate G of MOSFET 1 connected, the control module is instantly powered on. The path between IO1 and IO5 is also connected, outputting the key code signal corresponding to button SW101. Since the control module can only receive the key code signal corresponding to button SW101 after being powered on, the simultaneous connection of these two paths prevents the control module from receiving the key code signal, thus avoiding the control module mistakenly executing the operation corresponding to the key code signal when button SW101 is pressed and the control module is powered on.

[0084] In one specific embodiment, such as Figure 6 As shown, the power supply control module 4 includes a field-effect transistor and a resistor R2. The field-effect transistor is an NMOS transistor MOS2. Figure 6 In the diagram, power module 2 is represented by BATTERY1, indicating that power module 2 is a battery.

[0085] The negative terminal GND of power module 2 is connected to the source S of MOSFET 2, and the negative terminal of power module 2 is grounded. The positive terminal VBAT of power module 2 is connected to the first terminal of control module 3. The drain D of MOSFET 2 is connected to the second terminal GND1 of control module 3. The control terminal IO CONTROL of control module 3 is connected to the gate G of MOSFET 2. The first terminal of resistor R2 is connected to the gate G of MOSFET 2, and the second terminal of resistor R2 is connected to the source S of MOSFET 2. Figure 6 In the diagram, IO1 to IO8 are the input terminals of control module 3, used to connect to the output terminals of button module 1. Figure 6 The number of input terminals of the control module 3 is for illustrative purposes only and does not limit the specific number of input terminals of the control module 3.

[0086] In standby mode, NMOS transistor MOS2 is in the off state. By disconnecting the connection between the negative terminal GND of power module 2 and the second terminal GND1 of control module 3 through NMOS transistor MOS2, the control module is in a power-off state in standby mode, achieving zero power consumption of the control module in standby mode.

[0087] In one specific embodiment, such as Figure 6 and Figure 7 As shown, the first end of the button module 1 is connected to the negative terminal GND of the power module 2, and the second end of the button module is connected to the second terminal GND1 of the control module 3. Figure 7In the circuit, button module 1 is a button matrix circuit, which includes 16 buttons, SW101 to SW116. IO1 to IO8 are the input terminals of control module 3, used to connect to the output terminals of button module 1. The 16 different button functions are triggered by the 8 input terminals of control module 3, which can save the number of input terminals of control module 3. Figure 7 In this diagram, the number of input terminals of control module 3 is for illustrative purposes only and does not limit the specific number of input terminals of control module 3. Similarly, the number of buttons is for illustrative purposes only and does not limit the specific number of buttons.

[0088] Figure 7 In this configuration, the first terminal of each button is connected to the negative terminal GND of the power module 2, and the second terminal of each button is connected to the second terminal GND1 of the control module 3. This enables the remote control to be woken up by pressing any button. Depending on the needs, it is not necessary to add a first and second terminal to every button. Furthermore, the first terminal of each button connected to the negative terminal GND of the power module 2, and the second terminal connected to the second terminal GND1 of the control module 3, can be achieved by adding a first and second terminal to at least one button in button module 1. With the first terminal connected to the negative terminal GND of the power module 2 and the second terminal connected to the second terminal GND1 of the control module 3, the power supply and control module can be momentarily short-circuited when the button module is operated, thus establishing a connection between the power module and the control module and providing a momentary power signal to the control module, allowing it to be powered on instantly.

[0089] Figure 7 When the button module is operated, the path between the negative terminal GND of the power module 2 and the second terminal GND1 of the control module 3 is directly connected, and the control module is instantly powered on. After the control module is instantly powered on, it outputs the first control signal to the gate G of the field-effect transistor MOS2. The first control signal is at a high level, the field-effect transistor MOS2 is turned on, and the control module remains powered on.

[0090] exist Figure 6 and Figure 7 Based on this, after the control module is momentarily powered on, it outputs a first control signal to the gate G of the field-effect transistor MOS2. When the first control signal is high, MOS2 is turned on. The control module remains powered on for a preset delay period, receives the key encoding signal output by the key module, executes the operation corresponding to the key encoding signal, and restarts the timing. If the key module is not operated within the preset delay period, the control module outputs a second control signal to the gate G of MOS2. When the second control signal is low, MOS2 is turned off, the control module is powered off, and enters a no-power standby mode.

[0091] Figure 7The following explanation uses the pressing of button SW101 as an example. When button SW101 is pressed, the path between IO1 and IO5, as well as the path between the negative terminal GND of power module 2 and the second terminal GND1 of control module 3, are simultaneously and instantaneously connected. With the path between the negative terminal GND of power module 2 and the second terminal GND1 of control module 3 connected, the control module is instantly powered on. The path between IO1 and IO5 is also connected, outputting the key encoding signal corresponding to button SW101. Since the control module can only receive the key encoding signal corresponding to button SW101 after being powered on, and these two paths are simultaneously connected, the control module cannot receive the key encoding signal corresponding to button SW101. This prevents the control module from mistakenly executing the operation corresponding to the key encoding signal when button SW101 is pressed and the control module is powered on.

[0092] In one specific embodiment, the button module includes a button matrix circuit, wherein the number of buttons in the button matrix circuit is greater than the number of output terminals of the button matrix circuit. For example... Figure 3 As shown, button module 1 is a button matrix circuit. Button module 1 includes 16 buttons, SW101 to SW116. IO1 to IO8 are the input terminals of control module 3, used to connect to the output terminals of button module 1. The 16 different button functions are triggered by the 8 input terminals of control module 3. The number of buttons in the button matrix circuit is greater than the number of output terminals of the button matrix circuit, which can save the number of input terminals of control module 3. Figure 3 In this diagram, the number of input terminals of control module 3 is for illustrative purposes only and does not limit the specific number of input terminals of control module 3. Similarly, the number of buttons is for illustrative purposes only and does not limit the specific number of buttons.

[0093] In the key matrix circuit, the bottom structure of at least one key is set as a separate first part and second part. The printed circuit board that contacts the bottom structure of at least one key has four contacts. When at least one key is pressed, two contacts contact the first part to achieve conduction between the two contacts, thereby connecting the power module and the control module. The other two contacts contact the second part to achieve conduction between the other two contacts, thereby connecting the key encoding signal triggering path. This achieves simultaneous connection of the path between the power module and the control module as well as the key encoding signal triggering path.

[0094] like Figure 8 The image shows the top, side, and bottom views of the button. The top view displays the word "Button." The side and bottom views reveal that the button's bottom structure consists of two separate parts: a first part and a second part. Both parts have a graphite coating on their lower surfaces. This graphite coating enables electrical conduction between contacts on the printed circuit board. Figure 9As shown, the printed circuit board in contact with the bottom structure of the button has four contacts: VBAT, VCC, IO1, and IO5. The printed circuit board in contact with the bottom structure of the button has exposed copper foil with a comb-shaped structure. Contacts VBAT and VCC correspond to a pair of comb-shaped cross-wounds formed by two comb-shaped windings. Contacts IO1 and IO5 correspond to a pair of comb-shaped cross-wounds formed by two comb-shaped windings. The four contacts form a total of two pairs of comb-shaped cross-wounds, and the two pairs of comb-shaped cross-wounds do not interfere with each other.

[0095] In existing technologies, remote control designs no longer require physical buttons mounted on printed circuit boards (PCBs). Instead, exposed copper foil with a comb-like structure is designed on the PCB. Pressing the integrated, spring-loaded rubber button, whose underside has a graphite coating, enables electrical conduction. In existing technologies, the bottom structure of the button is a single unit, as is the graphite coating on the underside. The PCB in contact with the button's bottom structure has two contacts, corresponding to a pair of comb-shaped cross-wound wires, allowing only two contacts to conduct. However,... Figure 8 and Figure 9 In this design, the bottom structure of the button is set as a separate first part and a second part. The printed circuit board that contacts the bottom structure of the button has four contacts, so that one button can control four contacts to conduct two circuits. Figure 8 and Figure 9 When the button is pressed, contact VBAT and contact VCC conduct, thus establishing a connection between the power module and the control module. Contacts IO1 and IO5 also conduct, activating the button encoding signal trigger path. This allows for simultaneous activation of both the power module / control module connection and the button encoding signal trigger path. Furthermore, the path between contact VBAT and contact VCC does not interfere with the path between contact IO1 and contact IO5, achieving a one-button dual-control function. Figure 8 and Figure 9 It only changes the shape of the bottom structure of the button and the shape of the contact copper foil on the printed circuit board, and does not increase the material cost.

[0096] Based on the same concept, this application provides a remote control, including the button control circuit provided in this application.

[0097] Based on the same concept, this application provides a button control method, applied to the control module in the button control circuit provided in this application, such as... Figure 10 As shown, the main steps of the button control method include:

[0098] Step 1001: When the control module receives a power signal in the power-off state, it starts timing and outputs a first control signal to the power supply control module. The first control signal is used to control the power supply control module to turn on, so that the power module can supply power to the control module within a preset delay time.

[0099] The preset delay time is the set time between the button module being activated and the automatic power-off. Different preset delay times can be set according to different remote control usage habits.

[0100] Step 1002: When the button module is not operated within the preset delay time, the control module outputs a second control signal to the power supply control module. The second control signal is used to control the power supply control module to disconnect, so that the power module stops supplying power to the control module.

[0101] When the control module receives a power signal from the button module when it is powered off, it controls the power supply control module to turn on via a first control signal. This allows the power module to supply power to the control module for a preset delay, providing sufficient time for the user to operate the button module and execute the operation corresponding to the button's coded signal after the control module is instantly powered on. Furthermore, if the button module is not operated within the preset delay, the control module controls the power supply control module to turn off via a second control signal, stopping the power supply to the control module and promptly cutting off power to reduce power consumption. This achieves zero power consumption in standby mode, solving the problem of high power consumption in remote controls during standby.

[0102] In one specific embodiment, the button control method further includes: when the button module is operated within a preset delay period, the control module receives the button encoding signal output by the button module, executes the operation corresponding to the button encoding signal, and restarts the timing.

[0103] It can realize the normal function of the button module. For example, if the volume up button in the button module is pressed within a preset delay time, the control module will perform a volume increase operation. A preset delay time is given to the user, allowing sufficient time to operate the button module and execute the operation corresponding to the button's coded signal after the control module is momentarily powered on.

[0104] Furthermore, when the button module is operated within the preset delay time, the control module restarts the timing. This avoids the situation where, during multiple button operations, the time between the subsequent button operation and the moment the control module is instantly powered on after a power outage exceeds the preset delay time, causing the control module to lose power and requiring the button module to be operated again to instantly power on the control module and execute the operation corresponding to the button code signal again. This increases the number of operation steps and affects the user experience.

[0105] Based on the same concept, this application provides a button control device, configured in the control module of the button control circuit provided in this application. The specific implementation of this device can be found in the description of the method embodiments; repeated details will not be repeated. Figure 11 As shown, the device mainly includes:

[0106] The first processing module 1101 is used to start timing and output a first control signal to the power supply control module when the power signal is obtained in the power off state. The first control signal is used to control the power supply control module to be turned on so that the power supply module can supply power to the control module within a preset delay time.

[0107] The second processing module 1102 is used to output a second control signal to the power supply control module when the button module is not operated within the preset delay time. The second control signal is used to control the power supply control module to disconnect so that the power module stops supplying power to the control module.

[0108] Based on the same concept, this application also provides an electronic device, such as... Figure 12 As shown, the electronic device mainly includes a processor 1201, a memory 1202, and a communication bus 1203. The processor 1201 and the memory 1202 communicate with each other via the communication bus 1203. The memory 1202 stores programs that can be executed by the processor 1201. The processor 1201 executes the programs stored in the memory 1202 to achieve the following steps:

[0109] When a power signal is received in a power-off state, a timer is started and a first control signal is output to the power supply control module. The first control signal is used to control the power supply control module to turn on, so that the power module supplies power to the control module within a preset delay time. If the button module is not operated within the preset delay time, a second control signal is output to the power supply control module. The second control signal is used to control the power supply control module to turn off, so that the power module stops supplying power to the control module.

[0110] The communication bus 1203 mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus 1203 can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 12 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0111] The memory 1202 may include random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor 1201.

[0112] The processor 1201 mentioned above can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc., or a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0113] In another embodiment of this application, a computer-readable storage medium is provided, which stores a computer program that, when run on a computer, causes the computer to execute the key control method described in the above embodiments.

[0114] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. This computer program product includes one or more computer instructions. When these computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, microwave, etc.) means. The computer-readable storage medium can be any available medium accessible to a computer or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape, etc.), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state drive), etc.

[0115] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0116] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A button control circuit, characterized in that, It includes a button module, a power module, a control module, and a power supply control module; The power supply control module is connected between the power supply module and the control module, the control terminal of the control module is connected to the controlled terminal of the power supply control module, and the output terminal of the button module is connected to the input terminal of the control module. The button module is used to simultaneously activate the path between the power module and the control module, as well as the button encoding signal trigger path, when operated. The button encoding signal trigger path refers to the path between different input terminals of the control module. The path between the power module and the control module is used to provide a power signal to the control module, and the button encoding signal trigger path is used to output a button encoding signal to the control module. The control module is configured to, upon receiving the power signal in a power-off state, start a timer and output a first control signal to the power supply control module. The first control signal is used to control the power supply control module to be turned on, so that the power module supplies power to the control module within a preset delay period. If the button module is not operated within the preset delay period, the control module outputs a second control signal to the power supply control module. The second control signal is used to control the power supply control module to be turned off, so that the power module stops supplying power to the control module. The button module includes a button matrix circuit. The bottom structure of at least one button in the button matrix circuit is configured as a separate first part and a second part. The printed circuit board in contact with the bottom structure of the at least one button has four contacts. When the at least one button is pressed, two contacts contact the first part to achieve conduction between the two contacts, thereby connecting the power module and the control module. The other two contacts contact the second part to achieve conduction between the other two contacts, thereby connecting the button encoding signal triggering path. This achieves simultaneous connection of the path between the power module and the control module as well as the button encoding signal triggering path.

2. The button control circuit according to claim 1, characterized in that, The control module is further configured to receive the key encoding signal output by the key module, execute the operation corresponding to the key encoding signal, and restart the timing when the key module is operated within the preset delay period.

3. The button control circuit according to claim 1 or 2, characterized in that, The power supply control module includes a field-effect transistor and a resistor; The first terminal of the power supply module is connected to the source of the field-effect transistor (FET), the second terminal of the power supply module is connected to the first terminal of the control module, the drain of the FET is connected to the second terminal of the control module, the control terminal of the control module is connected to the gate of the FET, the first terminal of the resistor is connected to the gate of the FET, and the second terminal of the resistor is connected to the source of the FET.

4. The button control circuit according to claim 3, characterized in that, The field-effect transistor is a PMOS transistor; The positive terminal of the power supply module is connected to the source terminal of the field-effect transistor, and the negative terminal of the power supply module is connected to the first terminal of the control module.

5. The button control circuit according to claim 4, characterized in that, The first end of the button module is connected to the positive terminal of the power module, and the second end of the button module is connected to the second end of the control module.

6. The button control circuit according to claim 4, characterized in that, The first end of the button module is connected to the gate of the field-effect transistor, and the second end of the button module is connected to the negative terminal of the power supply module.

7. The button control circuit according to claim 3, characterized in that, The field-effect transistor is an NMOS transistor; The negative terminal of the power supply module is connected to the source terminal of the field-effect transistor, and the positive terminal of the power supply module is connected to the first terminal of the control module.

8. The button control circuit according to claim 7, characterized in that, The first end of the button module is connected to the negative terminal of the power module, and the second end of the button module is connected to the second end of the control module.

9. A remote control, characterized in that, Includes the key control circuit as described in any one of claims 1 to 8.

10. A button control method, characterized in that, The control module applied in the button control circuit according to any one of claims 1-8, the button control method includes: When the power signal is obtained in the power-off state, a timer is started and a first control signal is output to the power supply control module. The first control signal is used to control the power supply control module to be turned on so that the power module can supply power to the control module within a preset delay time. If the button module is not operated within the preset delay period, a second control signal is output to the power supply control module. The second control signal is used to control the power supply control module to disconnect, so that the power module stops supplying power to the control module.

11. The button control method according to claim 10, characterized in that, The method further includes: When the button module is operated within the preset delay period, the button module outputs a button encoding signal, performs the operation corresponding to the button encoding signal, and restarts the timing.

12. A button control device, characterized in that, The control module configured in the key control circuit according to any one of claims 1-8 includes: The first processing module is used to start timing and output a first control signal to the power supply control module when the power signal is obtained in the power-off state. The first control signal is used to control the power supply control module to be turned on so that the power supply module can supply power to the control module within a preset delay time. The second processing module is used to output a second control signal to the power supply control module when the button module is not operated within the preset delay time. The second control signal is used to control the power supply control module to disconnect so that the power module stops supplying power to the control module.

13. An electronic device, characterized in that, include: The processor, memory, and communication bus are used to communicate with each other. The memory is used to store computer programs; The processor is used to execute the program stored in the memory to implement the key control method according to claim 10 or 11.

14. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the key control method as described in claim 10 or 11.

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