Low power consumption control circuit, low power consumption control method and storage medium

Abstract

The invention provides a low-power-consumption control circuit, a low-power-consumption control method and a storage medium, the low-power-consumption control circuit comprises a main control module, a first switch module, a first sampling module, a driving module and a second switch module which are connected in sequence, the second switch module is further connected with a power supply, and the main control module is in communication connection with the driving module. And the main control module sends a power consumption standby signal to the driving module. And when the driving module receives the power consumption standby signal, a load connected with the driving module is closed, and a preparation feedback signal is sent to the main control module. When the master control module receives the preparation feedback signal, the master control module controls the first switch module to be disconnected so as to enable the driving module to be powered off, and sends a first power-off confirmation signal to the driving module; and when a first non-power-off feedback signal returned by the driving module is received, the driving module is controlled to detect the voltage of the first sampling module, so that the driving module controls the second switch module to work to perform autonomous power-off when the voltage of the first sampling module is greater than a first preset voltage value.

Description

Technical Field

[0001] This application relates to the field of power electronics technology, specifically to a low-power control circuit, a low-power control method, and a storage medium. Background Technology

[0002] With the increasing competitiveness of air conditioning products and the upgrading of user needs, low-power standby function has become an important feature. Its design logic is as follows: when the low-power standby conditions such as not being turned on and not triggering the electric heating element are met, the main control board controls the relay to disconnect the power supply to the driver board, thereby turning off the power to the driver board. At the same time, the communication port between the main control board and the driver board enters a silent state, and the main control board no longer receives signals from the driver board, thereby reducing standby power consumption.

[0003] However, this design cannot effectively confirm whether the driver board is actually powered off. If the main control board has issued a power-off command and completed the operation process, the driver board may still be powered on due to soldering defects in the relay control circuit, missing solder joints in the power supply resistor, or other reasons. This not only causes the low-power standby function to fail and fail to achieve the energy-saving purpose, but also causes unnecessary energy waste, which violates the original design intention of this function and brings additional energy cost burden to users. Summary of the Invention

[0004] This application provides a low-power control circuit, a low-power control method, and a storage medium. When starting a low-power mode, if the drive module fails to power down normally, the second switch module can automatically power down, ensuring reliable operation of the low-power standby function, reducing energy waste, and improving product energy efficiency and stability.

[0005] The technical solution adopted by this invention to solve the problem is as follows: In a first aspect, this application provides a low-power control circuit, which includes a main control module, a first switch module, a first sampling module, a drive module, and a second switch module; the main control module, the first switch module, the first sampling module, the drive module, and the second switch module are connected in sequence, the second switch module is also connected to a power supply, and the main control module is communicatively connected to the drive module; The main control module is used to send a power consumption standby signal to the drive module; The drive module is used to shut down the load connected to the drive module when it receives the power standby signal, and send a preparation feedback signal to the main control module. The main control module is further configured to, upon receiving the preparation feedback signal, control the first switch module to disconnect to power off the drive module and send a first power-off confirmation signal to the drive module; upon receiving a first non-power-off feedback signal returned by the drive module based on the first power-off confirmation signal, control the drive module to detect the voltage of the first sampling module, so that the drive module controls the second switch module to operate to perform autonomous power-off when the voltage of the first sampling module is greater than a first preset voltage value.

[0006] In some embodiments, the low-power control circuit further includes: a second sampling module, a first end of which is connected to the first switching module, and a second end of which is connected to the main control module; the main control module is further configured to acquire the voltage of the second sampling module when receiving the first power-on feedback signal; and determine the switching state of the first switching module based on the voltage of the second sampling module.

[0007] In some embodiments, the second sampling module includes a second resistor; a first end of the second resistor is connected to the first switching module, and a second end of the second resistor is connected to the main control module.

[0008] In some embodiments, the first switching module includes a first relay, the first sampling module includes a first resistor, and the second switching module includes a first switching transistor and a second switching transistor; a first end of the coil of the first relay is energized, a second end of the coil of the first relay is connected to the main control module, a first end of the contact of the first relay is connected to the main control module, and a second end of the contact of the first relay is grounded; a first end of the first resistor is connected to the first end of the contact of the first relay, and a second end of the first resistor is connected to the drive module; a controlled end of the first switching transistor is connected to the drive module, a first end of the first switching transistor is connected to the controlled end of the second switching transistor and energized, a second end of the first switching transistor is grounded, a first end of the second switching transistor is energized, and a second end of the second switching transistor is connected to the drive module.

[0009] Secondly, embodiments of this application provide a low-power control method applied to a main control module in a low-power control circuit as described above. The low-power control method includes: sending a power standby signal to the driving module to cause the driving module to shut down the load connected to the driving module; upon receiving a preparation feedback signal returned by the driving module based on the power standby signal, controlling the first switching module to disconnect and sending a first power-off confirmation signal to the driving module; upon receiving a first non-power-off feedback signal returned by the driving module based on the first power-off confirmation signal, controlling the driving module to detect the voltage of the first sampling module, so that when the voltage of the first sampling module is greater than a first preset voltage value, the driving module controls the second switching module to operate for autonomous power-off.

[0010] In some embodiments, controlling the drive module to detect the voltage of the first sampling module includes: sending a first detection signal to the drive module so that the drive module detects the voltage of the first sampling module based on the first detection signal; receiving the voltage of the first sampling module sent by the drive module; and when the voltage of the first sampling module is greater than a first preset voltage value, sending a drive signal to the drive module so that the drive module controls the second switching module to operate for autonomous power-off.

[0011] In some embodiments, the low-power control circuit further includes a second sampling module, and the low-power control method further includes: when receiving the first power-on feedback signal, acquiring the voltage of the second sampling module; and determining the switching state of the first switching module based on the voltage of the second sampling module.

[0012] In some embodiments, determining the switching state of the first switching module based on the voltage of the second sampling module includes: determining the switching state of the first switching module to be in a conducting state when the voltage of the second sampling module is greater than a second preset voltage value; and determining the switching state of the first switching module to be in a disconnected state when the voltage of the second sampling module is less than or equal to the second preset voltage value.

[0013] In some embodiments, after sending the drive signal to the drive module, the low-power control method further includes: sending a second power-off confirmation signal to the drive module; if a second non-power-off feedback signal is not received from the drive module based on the second power-off confirmation signal within a preset time, the communication state of the main control module is adjusted to a receive-only state.

[0014] Thirdly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps of the low-power control method described above.

[0015] This application provides a low-power control circuit, a low-power control method, and a storage medium. The low-power control circuit includes a main control module, a first switch module, a first sampling module, a driver module, and a second switch module. Specifically, the main control module, the first switch module, the first sampling module, the driver module, and the second switch module are connected sequentially. The second switch module is also connected to a power supply. The main control module and the driver module are communicatively connected. The main control module sends a power standby signal to the driver module. Upon receiving the power standby signal, the driver module shuts down the load connected to the driver module and sends a readiness feedback signal to the main control module. The main control module is also used to control the first switch module to disconnect to power off the drive module when it receives the preparation feedback signal, and send a first power-off confirmation signal to the drive module; when it receives the first non-power-off feedback signal returned by the drive module based on the first power-off confirmation signal, it controls the drive module to detect the voltage of the first sampling module, so that when the voltage of the first sampling module is greater than the first preset voltage value, the drive module controls the second switch module to work to perform autonomous power-off. Thus, when starting the low-power mode, if the drive module fails to power off normally, the second switch module can achieve autonomous power-off, ensuring the reliable operation of the low-power standby function, reducing energy waste, and improving product energy efficiency and stability. Attached Figure Description

[0016] 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 recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a structural block diagram of a low-power control circuit provided in an embodiment of the present invention; Figure 2 This is a structural block diagram of a low-power control circuit provided in another embodiment of the present invention; Figure 3 This is a structural block diagram of a low-power control circuit provided in another embodiment of the present invention; Figure 4 This is a schematic diagram of the specific structure of the main control module, the first switching module, the second sampling module, and the first communication module in a low-power control circuit provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the specific structure of the first sampling module, driving module, second switching module, and second communication module in a low-power control circuit provided in an embodiment of the present invention; Figure 6This is a flowchart illustrating a low-power control method provided in an embodiment of the present invention; Figure 7 This is a supplementary flowchart illustrating a low-power control method provided in another embodiment of the present invention; Figure 8 This is a supplementary flowchart illustrating a low-power control method provided in another embodiment of the present invention; Figure 9 This is a schematic block diagram of a low-power control device provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of a computer device provided in an embodiment of the present invention. Detailed Implementation

[0018] 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, and 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.

[0019] In the description of this application, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," "third," etc., may explicitly or implicitly include one or more features.

[0020] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0021] It should be noted that since the method in this application embodiment is executed in a computer device, the processing objects of each computer device exist in the form of data or information, such as time, which is essentially time information. It is understood that if size, quantity, position, etc. are mentioned in subsequent embodiments, they are all corresponding data that exist so that the computer device can process them. Specific details will not be elaborated here.

[0022] Please see Figure 1 , Figure 1 This is a structural block diagram of a low-power control circuit 100 provided in an embodiment of the present invention.

[0023] like Figure 1 As shown, the low-power control circuit 100 includes a main control module 10, a first switch module 20, a first sampling module 30, a drive module 40, and a second switch module 50.

[0024] Specifically, the main control module 10, the first switch module 20, the first sampling module 30, the drive module 40, and the second switch module 50 are connected in sequence. The second switch module 50 is also connected to a power supply. The main control module 10 and the drive module 40 are communicatively connected. The main control module 10 is used to send a power consumption standby signal to the drive module 40. When the drive module 40 receives the power consumption standby signal, it shuts down the load connected to the drive module 40 and sends a preparation feedback signal to the main control module 10. The main control module 10 is also used to control the first switch module 20 to disconnect to power down the drive module 40 when it receives the preparation feedback signal, and sends a first power-down confirmation signal to the drive module 40. When it receives a first power-on feedback signal returned by the drive module 40 based on the first power-down confirmation signal, it controls the drive module 40 to detect the voltage of the first sampling module 30, so that when the voltage of the first sampling module 30 is greater than a first preset voltage value, the drive module 40 controls the second switch module 50 to operate for autonomous power-down.

[0025] The main control module 10 and the drive module 40 can interact with each other via wired or wireless communication.

[0026] The power consumption standby signal is a command signal sent by the main control module 10 to the drive module 40. The power consumption standby signal is used to inform the drive module 40 to enter a low-power state and initiate a series of operations to shut down the load and prepare for power failure.

[0027] The preparation feedback signal is a feedback signal returned by the driver module 40 to the main control module 10, indicating that the driver module 40 is ready to enter the low-power mode. When the driver module 40 receives the power standby signal and completes the operation of shutting down the load connected to it, it sends this preparation feedback signal to the main control module 10, letting the main control module 10 know that it can enter the next stage (controlling the first switch module 20 to disconnect).

[0028] The first power-off confirmation signal is a confirmation signal sent by the main control module 10 to the drive module 40. When the main control module 10 receives the preparation feedback signal and controls the first switch module 20 to disconnect, it sends the first power-off confirmation signal to confirm whether the drive module 40 has successfully lost power. Normally, if the drive module 40 loses power, it will not reply with the first power-off confirmation signal; if the drive module 40 fails to lose power, the main control module 10 will send a signal (i.e., the first power-on feedback signal) to reply to the first power-off confirmation signal.

[0029] The first power-on feedback signal is a feedback signal returned by the drive module 40 to the main control module 10 based on the first power-off confirmation signal. It is used to indicate that the drive module 40 has not successfully powered off, that is, it has not entered the low-power mode. The first power-on feedback signal is used to inform the main control module 10 that the drive module 40 has not successfully powered off after the first switch module is disconnected (that is, the normal power-off process has failed).

[0030] The first preset voltage value is a voltage threshold pre-set in the circuit, serving as the criterion for the drive module 40 to control the second switch module 50 to autonomously power off. When the voltage of the first sampling module 30 exceeds this threshold, it further verifies that the drive module 40 has failed to power off. At this point, the second switch module 50 is triggered to cut off the power supply, preventing high voltage from damaging the module or load, while ensuring the reliable implementation of the low-power standby function. The first preset voltage value can be 0 or other voltage values, which can be set according to actual needs.

[0031] In practical applications, firstly, the main control module 10 sends a power consumption standby signal to the drive module 40. Then, upon receiving this power consumption standby signal, the drive module 40 first shuts down its connected load to cut off load power consumption and sends a preparation feedback signal back to the main control module 10. Next, after confirming the preparation feedback signal, the main control module 10 controls the first switch module 20 to disconnect, causing the drive module 40 to lose power, and simultaneously sends a first power-off confirmation signal to the drive module 40. Then, when the drive module 40 returns a first power-on feedback signal based on the first power-off confirmation signal, the main control module 10 determines that the drive module 40 has not successfully shut down. The main control module 10 then controls the drive module 40 to detect the voltage of the first sampling module 30. If the voltage of the first sampling module 30 is greater than a first preset voltage value, the main control module 10 controls the drive module 40 to activate the second switch module 50, thus achieving autonomous power-off of the drive module 40.

[0032] Please see Figure 2 , Figure 2 This is a structural block diagram of a low-power control circuit 100 provided in another embodiment of the present invention.

[0033] In some embodiments, such as Figure 2As shown, the low-power control circuit 100 also includes a second sampling module 60. The first terminal of the second sampling module 60 is connected to the first switching module 20, and the second terminal of the second sampling module 60 is connected to the main control module 10. Specifically, the main control module 10 is further configured to acquire the voltage of the second sampling module 60 upon receiving a first power-on feedback signal; and determine the switching state of the first switching module 20 based on the voltage of the second sampling module 60.

[0034] The switching states of the first switch module 20 include an on state and an off state.

[0035] In practical applications, when the main control module 10 receives the first power-on feedback signal (indicating a failure of normal power-off) returned by the drive module 40, it acquires the voltage of the second sampling module 60 connected to the first switch module 20, and then determines whether the first switch module 20 is actually in a conducting or disconnected state based on the voltage of the second sampling module 60. If it is determined that the first switch module 20 is in a conducting state, the main control module 10 can determine that the first switch module 20 was not successfully disconnected, and thus the reason why the drive module 40 is not powered off may be that the first switch module 20 failed to disconnect. If it is determined that the first switch module 20 is in a disconnected state, the main control module 10 can determine that the first switch module 20 was successfully disconnected, and thus the reason why the drive module 40 failed to disconnect is determined to be other reasons, that is, other reasons besides the first switch module 20 failing to disconnect, such as a faulty power supply resistor in the drive module 40.

[0036] Please see Figure 3 , Figure 3 This is a structural block diagram of a low-power control circuit 100 provided in another embodiment of the present invention.

[0037] In some embodiments, such as Figure 3 As shown, the low-power control circuit 100 also includes a first communication module 70 and a second communication module 80. The first communication module 70 is connected to both the main control module 10 and the second communication module 80, and the second communication module 80 is also connected to the drive module 40.

[0038] Specifically, the first communication module 70 is used to receive and process signals sent by the second communication module 80, and send the processed signals to the main control module 10; it is also used to receive and process signals sent by the main control module 10, and send the processed signals to the second communication module 80. The second communication module 80 is used to receive and process signals sent by the first communication module 70, and send the processed signals to the driver module 40; it is also used to receive and process signals sent by the driver module 40, and send the processed signals to the first communication module 70, thereby realizing data interaction between the main control module 10 and the driver module 40.

[0039] Please refer to the following: Figure 4 and Figure 5 , Figure 4 This is a schematic diagram showing the specific structure of the main control module 10, the first switching module 20, the second sampling module 60, and the first communication module 70 in a low-power control circuit 100 provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of the specific structure of the first sampling module 30, the driving module 40, the second switching module 50, and the second communication module 80 in a low-power control circuit 100 provided in an embodiment of the present invention.

[0040] In some embodiments, the second sampling module 60 includes a second resistor Ra. The first end of the second resistor Ra is connected to the first switching module 20, and the second end of the second resistor Ra is connected to the main control module 10.

[0041] In some embodiments, the first switching module 20 includes a first relay K1, the first sampling module 30 includes a first resistor Rb, and the second switching module 50 includes a first switching transistor Q1 and a second switching transistor Q2. Specifically, the first end of the coil of the first relay K1 is energized, the second end of the coil of the first relay K1 is connected to the main control module 10, the first end of the contact of the first relay K1 is connected to the main control module 10, and the second end of the contact of the first relay K1 is grounded; the first end of the first resistor Rb is connected to the first end of the contact of the first relay K1, and the second end of the first resistor Rb is connected to the drive module 40; the controlled end of the first switching transistor Q1 is connected to the drive module 40, the first end of the first switching transistor Q1 is connected to the controlled end of the second switching transistor Q2, the second end of the first switching transistor Q1 is grounded, the first end of the second switching transistor Q2 is energized, and the second end of the second switching transistor Q2 is connected to the drive module 40.

[0042] In some embodiments, the second switching module 50 further includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a sixth resistor R6. The first end of the third resistor R3 is connected to the drive module 40; the second end of the third resistor R3 is connected to the controlled terminal of the first switching transistor Q1 and the first end of the fourth resistor R4; the first end of the first switching transistor Q1 is connected to the first end of the sixth resistor R6; the second ends of the first switching transistor Q1 and the fourth resistor R4 are both grounded; the first end of the fifth resistor R5 is connected to and energized by the first end of the second switching transistor Q2; the second end of the fifth resistor R5 is connected to the second end of the sixth resistor R6 and the controlled terminal of the second switching transistor Q2; and the second end of the second switching transistor Q2 is connected to the drive module 40. Specifically, the third resistor R3 and the fourth resistor R4 form a voltage divider to drive the first switching transistor Q1, and the third resistor R3 is also used for current limiting. The fifth resistor R5 is a pull-up resistor used to drive the second switching transistor Q2. The sixth resistor R6 forms a voltage divider with the fifth resistor R5 to power the first switching transistor Q1.

[0043] In this embodiment, the first switch Q1 is an NPN transistor and the second switch Q2 is a PNP transistor. In other embodiments, the first switch Q1 and the second switch Q2 can be other controllable switching devices.

[0044] In some embodiments, the second switching module 50 further includes a fourth capacitor C4. The first terminal of the fourth capacitor C4 is connected to the first terminal of the driving module 40 and the third resistor R3, and the second terminal of the fourth capacitor C4 is grounded. The fourth capacitor C4 is used for voltage regulation and filtering.

[0045] In some embodiments, the main control module 10 includes a first chip U1. The first chip U1 has a first pin P1.0, a second pin P1.1, a third pin P1.2, a fourth pin P1.3, and a fifth pin P1.4. The first pin P1.0, second pin P1.1, and third pin P1.2 of the first chip U1 are respectively connected to the first communication module 70. The fourth pin P1.3 of the first chip U1 is connected to the second terminal of the coil of the first relay K1. The fifth pin P1.4 of the first chip U1 is connected to the second terminal of the second resistor Ra. Specifically, the first pin P1.0, second pin P1.1, third pin P1.2, fourth pin P1.3, and fifth pin P1.4 are all digital I / O pins on the first chip U1, used for data exchange and control with external electronic devices. The first chip U1 can be an MCU (Microcontroller Unit) or other control chip.

[0046] In some embodiments, the drive module 40 includes a third chip U3. The third chip U3 has a first pin P1.3, a second pin P1.1, a third pin P1.2, a fourth pin P1.0, and a fifth pin P1.4. The first pin P1.3, second pin P1.1, and third pin P1.2 of the third chip U3 are respectively connected to the second communication module 80. The fourth pin P1.0 of the third chip U3 is connected to the second terminal of the first resistor Rb, and the fifth pin P1.4 of the third chip U3 is connected to the second switch module 50. Specifically, the first pin P1.3, second pin P1.1, third pin P1.2, fourth pin P1.0, and fifth pin P1.4 are all digital I / O pins on the third chip U3, used for data interaction and control with external electronic devices. The third chip U3 can be an MCU or other control chip.

[0047] In some embodiments, the first communication module 70 includes a second chip U2, a first capacitor C1, a second capacitor C2, a seventh resistor R7, an eighth resistor R8, and a ninth resistor R9. The second chip U2 has a first pin RO, a second pin RE, a third pin DE, a fourth pin DI, a fifth pin GND, a sixth pin A, a seventh pin B, and an eighth pin VCC. In this configuration, the first pin RO of the second chip U2 is connected to the third pin P1.2 of the first chip U1. The second pin RE of the second chip U2 is connected to the third pin DE of the second chip U2, the second terminal of the ninth resistor R9, and the second pin P1.1 of the first chip U1. The fourth pin DI of the second chip U2 is connected to the second terminal of the eighth resistor R8 and the first pin P1.0 of the first chip U1. The first terminals of the seventh resistor R7, the eighth resistor R8, and the ninth resistor R9 are all energized. The second terminal of the seventh resistor R7 is connected to the first terminal of the second capacitor C2, and the second terminal of the second capacitor C2 is grounded. The fifth pin GND of the second chip U2 is connected to the second terminal of the first capacitor C1 and grounded. The sixth pin A and the seventh pin B of the second chip U2 are connected to the second communication module 80, respectively. The eighth pin of the second chip U2 is connected to the first terminal of the first capacitor C1 and energized. The eighth resistor R8 and the ninth resistor R9 are pull-up resistors. The seventh resistor R7 and the second capacitor C2 are used for voltage regulation and filtering. The first capacitor C1 is used for filtering. The second chip U2 can be a half-duplex transceiver for RS485 or RS422, or other communication chips.

[0048] In some embodiments, the second communication module 80 includes a fourth chip U4, a third capacitor C3, a fifth capacitor C5, a tenth resistor R10, an eleventh resistor R11, and a twelfth resistor R12. The fourth chip U4 has a first pin RO, a second pin RE, a third pin DE, a fourth pin DI, a fifth pin GND, a sixth pin A, a seventh pin B, and an eighth pin VCC. Specifically, the first pin RO of the fourth chip U4 is connected to the third pin P1.2 of the third chip U3; the second pin RE of the fourth chip U4 is connected to the third pin DE of the fourth chip U4, the second end of the twelfth resistor R12, and the second pin P1.1 of the third chip U3; the fourth pin DI of the fourth chip U4 is connected to the second end of the eleventh resistor R11 and the first pin P1.0 of the third chip U3; the first ends of the tenth resistor R10, the eleventh resistor R11, and the twelfth resistor R12 are all energized; the second end of the tenth resistor R10 is connected to the first end of the fifth capacitor C5; the second end of the fifth capacitor C5 is grounded; the fifth pin GND of the fourth chip U4 is connected to the second end of the third capacitor C3 and grounded; the sixth pin A of the fourth chip U4 is connected to the sixth pin A of the second chip U2 of the first communication module 70; the seventh pin B of the fourth chip U4 is connected to the seventh pin B of the second chip U2 of the second communication module 80; and the eighth pin of the fourth chip U4 is connected to the first end of the third capacitor C3 and energized. Among them, the eleventh resistor R11 and the twelfth resistor R12 are pull-up resistors, the tenth resistor R10 and the fifth capacitor C5 are used for voltage regulation and filtering, and the third capacitor C3 is used for filtering. The fourth chip U4 can be a half-duplex transceiver of RS485 or RS422, or other communication chips.

[0049] In some embodiments, the low-power control circuit 100 further includes a first interface P1, a second interface P2, a third interface P3, and a fourth interface P4. The first terminal of the first interface P1 is energized, the second terminal of the first interface P1 is grounded, and the third and fourth terminals of the first interface P1 are respectively connected to the second chip U2. The first terminal of the second interface P2 is connected to the first terminal of the contact of the first relay K1, and the second terminal of the second interface P2 is grounded. The first terminal of the third interface P3 is energized, the second terminal of the third interface P3 is grounded, and the third and fourth terminals of the third interface P3 are respectively connected to the fourth chip U4. The first terminal of the fourth interface P4 is connected to the first terminal of the first resistor Rb, and the second terminal of the fourth interface P4 is grounded. Specifically, the first terminal of the first interface P1 is used to connect to the first terminal of the third interface P3, the second terminal of the first interface P1 is used to connect to the second terminal of the third interface P3, the third terminal of the first interface P1 is used to connect to the third terminal of the third interface P3, and the fourth terminal of the first interface P1 is used to connect to the fourth terminal of the third interface P3. The first terminal of the second interface P2 is used to connect to the first terminal of the fourth interface P4, and the second terminal of the second interface P2 is used to connect to the second terminal of the fourth interface P4.

[0050] The following is Figure 4 and Figure 5 The working principle of the low-power control circuit 100 is briefly explained.

[0051] In practical applications, after the main control module 10 sends a power standby signal, the drive module 40 shuts down the load and returns a ready feedback signal. Then, upon receiving the ready feedback signal, the main control module 10 controls the first relay K1 to disconnect, cutting off the power supply to the drive module 40, and simultaneously sends a first power-off confirmation signal. Next, if the drive module 40 is not powered off, it returns a first power-on feedback signal. The main control module 10 obtains the voltage of the second resistor Ra to confirm the switching state of the first relay K1, and simultaneously controls the drive module 40 to detect the voltage of the first resistor Rb. When the main control module 10 determines that the voltage of the first resistor Rb is greater than a first preset voltage value, the main control module 10 causes the drive module 40 to control the first switch Q1 to disconnect. When the first switch Q1 disconnects, the second switch Q2 disconnects, and the second switch Q2 has no current output, thereby cutting off the connection between the power supply and the drive module 40, achieving autonomous power-off, and ensuring reliable operation of the low-power standby function.

[0052] The low-power control circuit 100 provided in this application embodiment can automatically power off the drive module through the second switch module 50 when the low-power mode is started, if the drive module fails to power off normally. This ensures the reliable operation of the low-power standby function, improves the safety and stability of the circuit operation, and reduces the risk of equipment failure due to abnormal voltage.

[0053] Please see Figure 6 , Figure 6 This is a flowchart illustrating a low-power control method provided in an embodiment of the present invention.

[0054] This application embodiment also provides a low-power control method, applied to the main control module 10 in the aforementioned low-power control circuit 100, such as... Figure 6 As shown, the low-power control method includes the following steps S1 to S3: Step S1: Send a power standby signal to the drive module 40 so that the drive module 40 shuts down the load connected to the drive module 40.

[0055] Among them, such as Figure 1 As shown, the power consumption standby signal is a command signal sent by the main control module 10 to the drive module 40. The power consumption standby signal is used to inform the drive module 40 to enter a low-power state and initiate a series of subsequent operations such as shutting down the load and preparing for power-off.

[0056] Step S2: When the drive module 40 receives the preparation feedback signal based on the power consumption standby signal, the first switch module 20 is controlled to disconnect and a first power-off confirmation signal is sent to the drive module 40.

[0057] Among them, such as Figure 1 As shown, the preparation feedback signal is a feedback signal returned by the drive module 40 to the main control module 10. When the drive module 40 receives the power standby signal and completes the operation of shutting down the load connected to itself, it will send this preparation feedback signal to the main control module 10, so that the main control module 10 knows that it can enter the next stage (controlling the first switch module 20 to disconnect).

[0058] The first power-off confirmation signal is an acknowledgment signal sent by the main control module 10 to the drive module 40. When the main control module 10 receives the preparation feedback signal and controls the first switch module 20 to disconnect, it sends the first power-off confirmation signal to confirm whether the drive module 40 has successfully lost power. Normally, if the drive module 40 loses power, it will not reply with this first power-off confirmation signal; if the drive module 40 fails to lose power, the main control module 10 will reply with this first power-off confirmation signal (i.e., the first power-on feedback signal).

[0059] Step S3: When the first non-power-off feedback signal is received from the drive module 40 based on the first power-off confirmation signal, the drive module 40 is controlled to detect the voltage of the first sampling module 30, so that when the voltage of the first sampling module 30 is greater than the first preset voltage value, the drive module 40 controls the second switch module 50 to work to perform autonomous power-off.

[0060] Among them, such as Figure 1 As shown, the first power-on feedback signal is a feedback signal returned by the drive module 40 to the main control module 10 based on the first power-off confirmation signal. The first power-on feedback signal is used to inform the main control module 10 that the drive module 40 failed to power off after the first switch module 20 was disconnected (i.e., the normal power-off process failed).

[0061] The first preset voltage value is a voltage judgment threshold set in the circuit beforehand. It is the criterion used by the drive module 40 to control the second switch module 50 to automatically cut off power. The first preset voltage value can be 0 or other voltage values, and can be set according to actual needs.

[0062] In some embodiments, the method for controlling the drive module 40 to detect the voltage of the first sampling module 30 in step S3 above may specifically include: sending a first detection signal to the drive module 40 so that the drive module 40 detects the voltage of the first sampling module 30 based on the first detection signal; receiving the voltage of the first sampling module 30 sent by the drive module 40; and when the voltage of the first sampling module 30 is greater than a first preset voltage value, sending a drive signal to the drive module 40 so that the drive module 40 controls the second switch module 50 to work for autonomous power-off.

[0063] Among them, such as Figure 1As shown, the drive signal is an execution command signal sent by the main control module 10 to the drive module 40, which is used to instruct the drive module 40 to immediately control the second switch module 50 to perform a power-off operation.

[0064] Specifically, when the voltage of the first sampling module 30 is greater than the first preset voltage value, it further verifies that the drive module 40 has not been successfully powered off. At this time, the main control module 10 sends a drive signal to the drive module 40, so that the drive module 40 controls the second switch module 50 to work to cut off the power supply, so as to avoid damage to the module or load caused by high voltage, and at the same time ensure the reliable implementation of the low power standby function.

[0065] In some embodiments, such as Figure 2 As shown, the low-power control circuit also includes a second sampling module 60. (As illustrated...) Figure 7 As shown, when the first power-on feedback signal is received in step S3, the low-power control method further includes the following steps S31 and S32: Step S31: When the first power-on feedback signal is received, the voltage of the second sampling module 60 is obtained.

[0066] Step S32: Determine the switching state of the first switching module 20 based on the voltage of the second sampling module 60.

[0067] In this embodiment, the switching states of the first switch module 20 include an on state and an off state.

[0068] Specifically, such as Figure 2 As shown, when the main control module 10 receives the first power-on feedback signal (indicating a failure of normal power-off) returned by the drive module 40, it acquires the voltage of the second sampling module 60 connected to the first switch module 20, and then determines whether the first switch module 20 is actually in a conducting or disconnected state based on the voltage of the second sampling module 60. If it is determined that the first switch module 20 is in a conducting state, the main control module 10 can determine that the first switch module 20 was not successfully disconnected, and thus determine that the reason the drive module 40 is not powered off may be that the first switch module 20 was not successfully disconnected. If it is determined that the first switch module 20 is in a disconnected state, the main control module 10 can determine that the first switch module 20 was successfully disconnected, and thus determine that the reason the drive module 40 was not successfully powered off is due to other reasons, that is, other reasons besides the first switch module 20 not being disconnected, such as a faulty power supply resistor in the drive module 40.

[0069] In some embodiments, the method for determining the switching state of the first switching module 20 based on the voltage of the second sampling module 60 in step S32 may specifically include: when the voltage of the second sampling module 60 is greater than a second preset voltage value, determining that the switching state of the first switching module 20 is a conducting state; when the voltage of the second sampling module 60 is less than or equal to the second preset voltage value, determining that the switching state of the first switching module 20 is a disconnected state.

[0070] The second preset voltage value is a voltage judgment threshold set in the circuit beforehand, which is the criterion for determining the switching state of the first switching module 20. The second preset voltage value can be 0 or other voltage values, and can be set according to actual needs.

[0071] In some embodiments, such as Figure 8 As shown, after sending a drive signal to the drive module 40 when the voltage of the first sampling module 30 is greater than the first preset voltage value in step 3, the low-power control method further includes the following steps S34 and S35: Step S34: Send a second power-off confirmation signal to the drive module 40.

[0072] The second power-off confirmation signal is a confirmation signal sent by the main control module 10 to the drive module 40 to confirm whether the drive module 40 has completed the control of the second switch module 50 according to the previous drive signal (i.e. whether the autonomous power-off operation has been successfully executed).

[0073] Step S35: If the second non-power-off feedback signal returned by the drive module 40 based on the second power-off confirmation signal is not received within the preset time, the communication state of the main control module 10 is adjusted to the receive-only state.

[0074] The preset time is a fixed time threshold set in the main control module 10, which serves as the criterion for determining whether the drive module 40 has successfully lost power. The duration of the preset time needs to be set in conjunction with the actual response speed of the circuit (such as the signal processing time of the drive module 40 and the time consumed by the switching module's actions), with the aim of providing a reasonable time range for waiting for the second power-on feedback signal. The preset time can be set to 10ms, 1s, 2s, etc.

[0075] The second power-on feedback signal is a feedback signal returned by the drive module 40 to the main control module 10 based on the second power-off confirmation signal. It is generated only when the drive module 40 fails to power off. If the drive module 40 has been powered off, its circuit function is disabled and it cannot send this signal; if it has not been powered off, it will use this signal to inform the main control module 10 that the power-off operation of the drive module 40 was unsuccessful.

[0076] In this embodiment, after the main control module 10 sends a drive signal to the drive module 40 (which triggers the second switch module 50 to perform autonomous power-off), a second power-off confirmation signal is sent in step S34 to verify whether the drive module 40 has completed the power-off operation. If the drive module 40 successfully powers off, it will not be able to return a second power-on feedback signal. Therefore, if the main control module 10 does not receive this signal within a preset time, it adjusts its communication state to a receive-only state in step S35. This avoids the unnecessary power consumption caused by continuous signal transmission while retaining the ability to receive possible abnormal state feedback, further optimizing the stability of the low-power standby mode.

[0077] In some embodiments, when sending a signal to the drive module 40 to confirm the status of the drive module 40, the main control module 10 may send multiple signals (e.g., 3 times, 5 times, etc.) to perform multiple verifications.

[0078] For example, the main control module 10 can send a first power standby signal to the driver module 40. If it receives a first ready feedback signal from the driver module 40, the main control module 10 sends a second power standby signal to the driver module 40. If it receives a second ready feedback signal from the driver module 40, the main control module 10 can send a third power standby signal to the driver module 40. If it receives a third power standby signal from the driver module 40, the main control module 10 determines that the driver module 40 is ready to enter low-power mode, meaning that it can then disconnect the power supply to the driver module 40.

[0079] Similarly, the main control module 10 can send multiple first power-off confirmation signals to the drive module 40. If the drive module 40 returns a first power-on feedback signal for each first power-off confirmation signal, then the main control module 10 confirms that the drive module 40 has not successfully powered off.

[0080] Similarly, the main control module 10 can send multiple second power-off confirmation signals to the drive module 40. If the drive module 40 returns a second power-on feedback signal for each second power-off confirmation signal, then the main control module 10 confirms that the drive module 40 has not successfully powered off autonomously.

[0081] The low-power control method provided in this application first sends a power standby signal to the drive module 40 to trigger the load shutdown of the drive module 40, reducing basic energy consumption. Next, upon receiving a preparation feedback signal from the drive module 40, the first switch module 20 is controlled to disconnect, achieving a normal power-off and forming the first layer of power consumption control. Then, a first power-off confirmation signal is sent to the drive module 40 to detect whether the drive module 40 has failed to disconnect. If a first non-power-off feedback signal is received from the drive module 40, the normal power-off of the drive module 40 has failed. At this time, the voltage of the first sampling module 30 is detected to trigger the second switch module 50 to autonomously disconnect. This application embodiment can achieve autonomous power-off through the second switch module 50 when the drive module 40 fails to disconnect during low-power mode startup, ensuring reliable operation of the low-power standby function, improving the safety and stability of circuit operation, and reducing the risk of equipment failure due to abnormal voltage.

[0082] like Figure 9 As shown, in order to better implement the low-power control method of this application embodiment, based on the low-power control method, this application embodiment also provides a low-power control device, applied to the main control module in the above-mentioned low-power control circuit 100. The low-power control device 700 includes: The first signal transmitting module 701 is used to send a power standby signal to the driving module so that the driving module shuts down the load connected to the driving module.

[0083] The first switch control module 702 is used to control the first switch module to disconnect and send a first power-off confirmation signal to the drive module when it receives a preparation feedback signal returned by the drive module based on the power consumption standby signal.

[0084] The second switch control module 703 is used to control the drive module to detect the voltage of the first sampling module when it receives the first non-power-off feedback signal returned by the drive module based on the first power-off confirmation signal, so that the drive module controls the second switch module to work to perform autonomous power-off when the voltage of the first sampling module is greater than the first preset voltage value.

[0085] In some embodiments, the second switch control module 703 is specifically configured to: send a first detection signal to the drive module so that the drive module detects the voltage of the first sampling module based on the first detection signal; receive the voltage of the first sampling module sent by the drive module; and when the voltage of the first sampling module is greater than a first preset voltage value, send a drive signal to the drive module so that the drive module controls the second switch module to work to perform autonomous power-off.

[0086] In some embodiments, the low-power control circuit 100 further includes a second sampling module, and the low-power control device 700 further includes: A voltage acquisition module is used to acquire the voltage of the second sampling module when a first power-on feedback signal is received; The state determination module is used to determine the switching state of the first switching module based on the voltage of the second sampling module.

[0087] In some embodiments, the state determination module is specifically used to: determine the switching state of the first switch module as an on state when the voltage of the second sampling module is greater than the second preset voltage value; and determine the switching state of the first switch module as an off state when the voltage of the second sampling module is less than or equal to the second preset voltage value.

[0088] In some embodiments, after sending a drive signal to the drive module, the low-power control device 700 further includes: The second signal transmitting module is used to send a second power-off confirmation signal to the drive module; The status adjustment module is used to adjust the communication status of the main control module to a receive-only state if it does not receive the second non-power-off feedback signal returned by the drive module based on the second power-off confirmation signal within a preset time.

[0089] This application also provides a terminal device that integrates any of the low-power control devices provided in this application. The computer device includes: One or more processors; Memory; and One or more applications, wherein the applications are stored in memory and configured to be executed by the processor in the steps of the low-power control method in any of the embodiments of the above control method.

[0090] Please see Figure 10 , Figure 10 This is a schematic diagram of the structure of a computer device provided in an embodiment of the present invention.

[0091] This application also provides a computer device that integrates any of the low-power control devices provided in this application. For example... Figure 10 As shown, it illustrates a structural schematic diagram of the computer device involved in the embodiments of this application, specifically: The computer device may include components such as a processor 801 with one or more processing cores, a memory 802 with one or more computer-readable storage media, a power supply 803, and an input unit 804. Those skilled in the art will understand that... Figure 10 The computer device structure shown does not constitute a limitation on the computer device and may include more or fewer components than shown, or combine certain components, or have different component arrangements. Wherein: The processor 801 is the control center of the computer device. It connects various parts of the computer device via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 802, and by calling data stored in the memory 802, it performs various functions of the computer device and processes data, thereby providing overall monitoring of the computer device. Optionally, the processor 801 may include one or more processing cores; preferably, the processor 801 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications, and the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 801.

[0092] The memory 802 can be used to store software programs and modules. The processor 801 executes various functional applications and data processing by running the software programs and modules stored in the memory 802. The memory 802 may mainly include a program storage area and a data storage area. The program storage area may store the operating system, application programs required for at least one function (such as sound playback function, image playback function, etc.), etc.; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 802 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory 802 may also include a memory controller to provide the processor 801 with access to the memory 802.

[0093] The computer device also includes a power supply 803 that supplies power to the various components. Preferably, the power supply 803 can be logically connected to the processor 801 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system. The power supply 803 may also include one or more DC or AC power supplies, recharging systems, power fault detection circuits, power converters or inverters, power status indicators, and other arbitrary components.

[0094] The computer device may also include an input unit 804, which can be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.

[0095] Although not shown, the computer device may also include a display unit, etc., which will not be described in detail here. Specifically, in this embodiment, the processor 801 in the computer device loads the executable files corresponding to the processes of one or more application programs into the memory 802 according to the following instructions, and the processor 801 runs the application programs stored in the memory 802 to realize various functions, as follows: Send a power standby signal to the driver module so that the driver module shuts down the load connected to the driver module; Upon receiving the preparation feedback signal returned by the drive module based on the power consumption standby signal, the first switch module is controlled to disconnect and a first power-off confirmation signal is sent to the drive module. When the first non-power-off feedback signal is received from the drive module based on the first power-off confirmation signal, the drive module is controlled to detect the voltage of the first sampling module, so that when the voltage of the first sampling module is greater than the first preset voltage value, the drive module controls the second switch module to work to perform autonomous power-off.

[0096] Those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be performed by instructions, or by instructions controlling related hardware. These instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0097] Therefore, embodiments of this application provide a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps of any of the low-power control methods provided in embodiments of this application. For example, the computer program loaded by the processor can execute the following steps: Send a power standby signal to the driver module so that the driver module shuts down the load connected to the driver module; Upon receiving the preparation feedback signal returned by the drive module based on the power consumption standby signal, the first switch module is controlled to disconnect and a first power-off confirmation signal is sent to the drive module. When the first non-power-off feedback signal is received from the drive module based on the first power-off confirmation signal, the drive module is controlled to detect the voltage of the first sampling module, so that when the voltage of the first sampling module is greater than the first preset voltage value, the drive module controls the second switch module to work to perform autonomous power-off.

[0098] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the detailed descriptions of other embodiments above, which will not be repeated here.

[0099] In practice, each of the above units or structures can be implemented as an independent entity or can be arbitrarily combined to be implemented as the same or several entities. For the specific implementation of each of the above units or structures, please refer to the previous method embodiments, which will not be repeated here.

[0100] For details on the implementation of each of the above operations, please refer to the previous examples, which will not be repeated here.

[0101] The above provides a detailed description of a low-power control circuit, a low-power control method, and a storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A low power consumption control circuit, characterized by comprising: The low-power consumption control circuit comprises a master control module, a first switch module, a first sampling module, a driving module and a second switch module; the master control module, the first switch module, the first sampling module, the driving module and the second switch module are sequentially connected, the second switch module is further connected with a power supply, and the master control module is in communication connection with the driving module; The master control module is configured to send a power consumption standby signal to the driving module; The driving module is configured to, when receiving the power consumption standby signal, turn off a load connected with the driving module and send a preparation feedback signal to the master control module; The master control module is further configured to, when receiving the preparation feedback signal, control the first switch module to be disconnected to make the driving module be powered off, and send a first power-off confirmation signal to the driving module; and when receiving a first non-power-off feedback signal returned by the driving module based on the first power-off confirmation signal, control the driving module to detect a voltage of the first sampling module, so that the driving module controls the second switch module to work to be powered off autonomously when the voltage of the first sampling module is greater than a first preset voltage value.

2. The low power control circuit of claim 1, wherein, The low-power consumption control circuit further comprises: A second sampling module, a first end of the second sampling module being connected with the first switch module, and a second end of the second sampling module being connected with the master control module; The master control module is further configured to, when receiving the first non-power-off feedback signal, acquire a voltage of the second sampling module; and determine a switch state of the first switch module based on the voltage of the second sampling module.

3. The low power control circuit of claim 2, wherein, The second sampling module comprises a second resistor; A first end of the second resistor is connected with the first switch module, and a second end of the second resistor is connected with the master control module.

4. The low power control circuit of claim 1, wherein, The first switch module comprises a first relay, the first sampling module comprises a first resistor, and the second switch module comprises a first switch tube and a second switch tube; A first end of a coil of the first relay is connected with a power supply, a second end of the coil of the first relay is connected with the master control module, a first end of a contact of the first relay is connected with the master control module, and a second end of the contact of the first relay is grounded; A first end of the first resistor is connected with the first end of the contact of the first relay, and a second end of the first resistor is connected with the driving module; A controlled end of the first switch tube is connected with the driving module, a first end of the first switch tube is connected with a controlled end of the second switch tube and connected with the power supply, a second end of the first switch tube is grounded, a first end of the second switch tube is connected with the power supply, and a second end of the second switch tube is connected with the driving module.

5. A low power consumption control method characterized by comprising: The master control module applied to the low-power consumption control circuit in any one of claims 1 to 4, the low-power consumption control method comprising: sending a power consumption standby signal to the driving module, so that the driving module turns off a load connected with the driving module; when receiving a preparation feedback signal returned by the driving module based on the power consumption standby signal, controlling the first switch module to be disconnected and sending a first power-off confirmation signal to the driving module; When the first non-power-off feedback signal returned by the driving module based on the first power-off confirmation signal is received, the driving module is controlled to detect the voltage of the first sampling module, so that the driving module controls the second switch module to work to perform autonomous power-off when the voltage of the first sampling module is greater than a first preset voltage value.

6. The low-power consumption control method according to claim 5, wherein The control of the driving module to detect the voltage of the first sampling module comprises: sending a first detection signal to the driving module, so that the driving module detects the voltage of the first sampling module based on the first detection signal; receiving the voltage of the first sampling module sent by the driving module, and sending a driving signal to the driving module when the voltage of the first sampling module is greater than the first preset voltage value, so that the driving module controls the second switch module to work to perform autonomous power-off.

7. The low-power consumption control method according to claim 5, wherein The low-power consumption control circuit further comprises a second sampling module, and the low-power consumption control method further comprises: when the first non-power-off feedback signal is received, obtaining the voltage of the second sampling module; determining the switch state of the first switch module based on the voltage of the second sampling module.

8. The low-power consumption control method according to claim 7, wherein The determination of the switch state of the first switch module based on the voltage of the second sampling module comprises: when the voltage of the second sampling module is greater than a second preset voltage value, determining that the switch state of the first switch module is an on state; when the voltage of the second sampling module is less than or equal to the second preset voltage value, determining that the switch state of the first switch module is an off state.

9. The low-power consumption control method according to claim 6, wherein After the driving signal is sent to the driving module, the low-power consumption control method further comprises: sending a second power-off confirmation signal to the driving module; if a second non-power-off feedback signal returned by the driving module based on the second power-off confirmation signal is not received within a preset time, adjusting the communication state of the master control module to a receiving-only state.

10. A computer-readable storage medium, characterized in that, A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps of the low-power consumption control method of any one of claims 5 to 9. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps of the low-power consumption control method of any one of claims 5 to 9.

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