A device wake-up method, wake-up circuit, air conditioner, and electronic device.

Abstract

This invention provides a device wake-up method, a wake-up circuit, an air conditioner, and electronic equipment, belonging to the field of air conditioning control technology. The method includes the following steps: determining whether the discharge time of the bus capacitor of the device to be woken up exceeds a preset time; if so, determining whether a wake-up signal has been received; if a wake-up signal is received, waking up the device; if no wake-up signal is received, the device remains in standby mode. The indoor and outdoor units of the air conditioner are woken up using the above method. This method ensures that the outdoor unit can be normally woken up after the indoor unit of the air conditioner is turned off, ensuring the normal operation of the outdoor unit and improving the user experience.

Description

Technical Field

[0001] This invention relates to the field of air conditioning control technology, and in particular to a device wake-up method, a wake-up circuit, an air conditioner, and electronic equipment. Background Technology

[0002] In one existing control method for air conditioner outdoor units, the outdoor unit automatically disconnects the power supply relay to the live wire 3 minutes after the indoor unit is turned off, thus cutting off its own power supply and achieving low-power standby. However, if the outdoor unit disconnects its power supply relay immediately after the indoor unit is turned off, the bus capacitor still has power, and the main chip of the outdoor unit has not yet reset, remaining in a powered-off state. If the indoor unit is then turned on remotely at this time, it charges the bus capacitor of the outdoor unit through the communication line, causing the capacitor voltage to rise. If the bus capacitor is too large, and the capacitor voltage does not drop to a level that prevents the power module from operating before the next wake-up, the capacitor can be charged again upon the next wake-up. This results in the outdoor unit's main chip never resetting during multiple wake-up attempts, and the outdoor unit will not re-engage the live wire relay. Consequently, after the bus capacitor voltage drops, the outdoor unit completely loses power, the wake-up fails, and the user cannot turn it on normally.

[0003] Therefore, it is necessary to improve the wake-up method of the outdoor unit of the air conditioner to overcome the shortcomings of the existing technology. Summary of the Invention

[0004] To overcome the problems existing in related technologies, one of the objectives of this invention is to provide a device wake-up method that ensures that the outdoor unit can be woken up normally after the indoor unit of the air conditioner is turned off, thus ensuring that the outdoor unit can work normally and improving the user experience.

[0005] A device wake-up method, comprising:

[0006] Determine whether the discharge time of the bus capacitor of the device to be woken up exceeds the preset time;

[0007] If so, determine whether a wake-up signal has been received;

[0008] If a wake-up signal is received, the device will be woken up; otherwise, it will remain in standby mode pending wake-up.

[0009] In a preferred embodiment of the present invention, the device to be woken up is provided with a main chip, and the bus capacitor is connected in series with the main chip.

[0010] In a preferred embodiment of the present invention, the device to be woken up is connected to a signal transmitting device, and the signal transmitting device sends a wake-up signal to the device to be woken up;

[0011] When the signal transmitting device is powered off, it charges the bus capacitor.

[0012] In a preferred embodiment of the present invention, when the signal transmitting device is powered off, charging the bus capacitor includes:

[0013] When the signal transmitting device is powered off, it intermittently charges the bus capacitor multiple times; wherein each charging time is T1 and the charging time interval is T3.

[0014] In a preferred embodiment of the present invention, the device to be woken up is connected to a power supply relay;

[0015] When the signal transmitting device is powered off, it sends a power-off signal to the device to be woken up.

[0016] When the device to be woken up receives a power-off signal, it shuts off the power supply relay after a delay of T2.

[0017] A second objective of this invention is to provide a wake-up circuit for performing the device wake-up method described above.

[0018] A third objective of this invention is to provide an air conditioner, comprising an indoor unit and an outdoor unit, wherein a wake-up circuit as described above is provided between the indoor unit and the outdoor unit.

[0019] In a preferred embodiment of the present invention, there are an indoor main chip and an outdoor main chip;

[0020] The indoor unit's main chip is controlled to open and close via a switch K1, and the outdoor unit's main chip is controlled to open and close via a switch K2; the switch K1 and switch K2 are connected by a live wire and a neutral wire.

[0021] The main chip of the outdoor unit is connected in series with a bus capacitor C1 and a power module. The bus capacitor C1 supplies power to the power module. The K2 switch is connected in series with the bus capacitor C1 and a rectifier module.

[0022] The K1 switch is connected in parallel with the bus capacitor C1 and the power module via a communication line; when the main chip of the indoor unit is turned off, the bus capacitor C1 is charged through the communication line.

[0023] In a preferred embodiment of the present invention, the rectifier module provides a DC bus voltage VDC to the power supply module. The power supply module has a minimum operating bus voltage VDC1. When VDC < VDC1, the power supply module stops working; when VDC ≥ VDC1, the power supply module works and the external unit main chip is powered.

[0024] The fourth objective of this invention is to provide an electronic device, comprising:

[0025] Processor; and

[0026] The memory stores executable code, which, when executed by the processor, causes the processor to perform the device wake-up method as described above.

[0027] The beneficial effects of this invention are as follows:

[0028] This invention provides a device wake-up method, wake-up circuit, air conditioner, and electronic device. The method includes the following steps: determining whether the discharge time of the bus capacitor of the device to be woken up exceeds a preset time; if so, determining whether a wake-up signal has been received; if a wake-up signal is received, waking up the device; if no wake-up signal is received, the device remains in standby mode. This wake-up method extends the discharge time of the bus capacitor of the device to be woken up, determining whether a wake-up signal has been received only when the discharge time of the bus capacitor exceeds the preset time. This method overcomes the defect of existing devices that cannot be woken up after being repeatedly woken up multiple times in a short period of time. Applied to air conditioners, it ensures that the outdoor unit can be woken up normally after the indoor unit is turned off, thereby ensuring the normal operation of the outdoor unit and improving the user experience. Attached Figure Description

[0029] Figure 1 This is a flowchart of the device wake-up method provided by the present invention;

[0030] Figure 2 This is a schematic diagram of the wake-up circuit of the air conditioner actuator wake-up method provided by the present invention.

[0031] Figure label:

[0032] 1. Indoor unit main chip; 2. K1 switch; 3. K2 switch; 4. Outdoor unit main chip; 5. Power supply module; 6. Bus capacitor C1; 700. Rectifier module. Detailed Implementation

[0033] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0034] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0035] Example

[0036] If the DC bus capacitor of the appliance is too large, and the capacitor voltage does not drop to a level that prevents the power module 5 from operating before the next wake-up, the capacitor can recharge again upon the next wake-up. This results in the appliance's main chip never resetting during multiple wake-ups, and the appliance will not re-engage the live wire relay. Consequently, after the bus capacitor voltage drops, the appliance completely loses power, wake-up fails, and the user cannot power on the appliance normally.

[0037] To overcome the above deficiencies, this application provides a device wake-up method, such as... Figures 1-2 As shown, the method includes:

[0038] S100. Determine whether the discharge time of the bus capacitor of the device to be woken up exceeds the preset time.

[0039] S200 If yes, then determine whether a wake-up signal has been received; the wake-up signal is set differently depending on the appliance.

[0040] S300: If a wake-up signal is received, the device will be woken up; if no wake-up signal is received, the device will remain in standby mode pending wake-up.

[0041] In practical applications, the device to be woken up can be an outdoor unit of an air conditioner or an appliance with the same characteristics as the air conditioner during operation, so that it can be successfully turned on when the power is cut off after being turned off and then turned on again.

[0042] Specifically, the device to be woken up is equipped with a main chip, and the bus capacitor is connected in series with the main chip. The bus capacitor supplies power to the main chip of the device to be woken up. When the device to be woken up is powered off, the bus capacitor discharges, delaying the voltage drop of the main chip of the device to be woken up.

[0043] Furthermore, the device to be woken up is connected to a signal transmitting device, and the signal transmitting device sends a wake-up signal to the device to be woken up;

[0044] When the signal transmitting device is powered off, it charges the bus capacitor.

[0045] In practical applications, the signal transmitting device is electrically connected to the device to be woken up. This includes both communication and electrical connections. The signal transmitting device and the device to be woken up work in conjunction with each other. When the signal transmitting device is powered off, the device to be woken up is powered off or enters low-power standby mode, waiting for the signal transmitting device to resend the wake-up signal before restarting.

[0046] The aforementioned device wake-up method extends the discharge time of the bus capacitor of the device to be woken up. Only when the discharge time of the bus capacitor exceeds a preset time is a determination made as to whether a wake-up signal has been received. This method overcomes the defect of existing methods where devices become unwakeable after being repeatedly woken up multiple times in a short period. Applied to air conditioners, it ensures that the outdoor unit can be properly woken up after the indoor unit is turned off, thus guaranteeing the normal operation of the outdoor unit and improving the user experience.

[0047] Furthermore, when the signal transmitting device is powered off, charging the bus capacitor includes:

[0048] When the signal transmitting device is powered off, it intermittently charges the bus capacitor multiple times; wherein each charging time is T1 and the charging time interval is T3.

[0049] Furthermore, the device to be woken up is connected to a power supply relay;

[0050] When the signal transmitting device is powered off, it sends a power-off signal to the device to be woken up.

[0051] When the device to be woken up receives a power-off signal, it shuts off the power supply relay after a delay of T2. In this application, T2 is the delay time from when the device to be woken up receives the power-off signal to when the power supply relay is disconnected. This time is tentatively set at 3 minutes, but can be increased or decreased according to actual application. Delaying the power supply relay for T2 before disconnecting it makes the shutdown of the device to be woken up more stable, provides more buffer time, and helps to extend the service life of the device to be woken up.

[0052] This application also provides a wake-up circuit for executing the device wake-up method described above. When waking up a device, this circuit extends the discharge time of the bus capacitor to ensure that the device can start normally during short-term shutdown and startup.

[0053] This application also provides an air conditioner, which includes an indoor unit and an outdoor unit, and a wake-up circuit as described above is provided between the indoor unit and the outdoor unit.

[0054] Furthermore, the indoor main chip 1 and the outdoor main chip 4;

[0055] The indoor unit main chip 1 is controlled to open and close via K1 switch 2, and the outdoor unit main chip 4 is controlled to open and close via K2 switch 3; K1 switch 2 and K2 switch 3 are connected by a live wire and a neutral wire;

[0056] The main chip 4 of the outdoor unit is connected in series with a bus capacitor C16 and a power module 5. The bus capacitor C16 supplies power to the power module 5. The K2 switch 3 is connected in series with the bus capacitor C16 and a rectifier module 700.

[0057] The K1 switch 2 is connected in parallel with the bus capacitor C16 and the power module 5 via a communication line. When the indoor unit's main chip 1 is turned off, it charges the bus capacitor C16 via the communication line. In practical applications, the indoor unit's charging of the bus capacitor C16 via the communication line is intermittent; that is, after charging for time T1, charging is paused for time T3, and then charging is resumed for time T1, repeating this process to delay the discharge time of the bus capacitor C16. This application does not protect other components of the indoor and outdoor units. The air conditioner of this application uses the outdoor unit to determine whether it has received the indoor unit's wake-up signal by judging a preset delay time, thereby avoiding the failure of the outdoor unit's wake-up.

[0058] Furthermore, the rectifier module 700 provides a DC bus voltage VDC to the power supply module 5. The power supply module 5 has a minimum operating bus voltage VDC1. When VDC < VDC1, the power supply module 5 stops working; when VDC ≥ VDC1, the power supply module 5 operates, and the outdoor unit main chip 4 is powered. By setting the minimum bus voltage VDC1, the power supply module 5 provides a stable voltage to the outdoor unit main chip 4, ensuring the stable operation of the outdoor unit main chip 4.

[0059] Combination Figure 2 The working process of waking up the outdoor unit of the air conditioner in this application is described as follows:

[0060] After receiving the shutdown signal from the indoor unit via the live and neutral wire communication, the outdoor unit disconnects the K2 relay after a delay of T2. At this time, the DC bus voltage drops. When the bus voltage drops to VDC1, the power module 5 stops working, and subsequently, the outdoor unit's main chip 4 stops working.

[0061] When the indoor unit is powered on, the main chip 1 of the indoor unit controls the switch K1 to close, connecting the communication line to the live wire. The outdoor unit charges the DC bus capacitor C16 through the communication line. When VDC > VDC1, the power module 5 operates, the main chip 4 of the outdoor unit is powered, and controls the switch K2 to close. After the indoor unit charges the DC bus capacitor C16 through the communication line for a duration of T1, the switch K1 closes, pausing for a duration of T3. Since the DC bus capacitor C16 is continuously powered by the neutral and live wires at this time, the operation of the outdoor unit is not affected by the disconnection of the switch K1.

[0062] After time T3, the indoor unit will repeatedly charge the DC bus capacitor C16 and pause charging; this cycle will repeat twice to ensure that the outdoor unit is successfully woken up.

[0063] This application also provides an electronic device, including:

[0064] Processor; and

[0065] A memory that stores executable code, which, when executed by the processor, causes the processor to perform the method described above.

[0066] Electronic devices include memory and processor.

[0067] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0068] Memory can include various types of storage units, such as system memory, read-only memory (ROM), and permanent storage devices. ROM can store static data or instructions required by the processor or other modules of the computer. Permanent storage devices can be read-write storage devices. Permanent storage devices can be non-volatile storage devices that retain stored instructions and data even when the computer is powered off. In some embodiments, permanent storage devices use high-capacity storage devices (e.g., magnetic or optical disks, flash memory) as permanent storage devices. In other embodiments, permanent storage devices can be removable storage devices (e.g., floppy disks, optical drives). System memory can be a read-write storage device or a volatile read-write storage device, such as dynamic random access memory. System memory can store some or all of the instructions and data required by the processor during operation. Furthermore, memory can include any combination of computer-readable storage media, including various types of semiconductor memory chips (DRAM, SRAM, SDRAM, flash memory, programmable read-only memory), and disks and / or optical disks can also be used. In some implementations, the memory may include removable storage devices that are readable and / or writable, such as laser discs (CDs), read-only digital versatile optical discs (e.g., DVD-ROMs, dual-layer DVD-ROMs), read-only Blu-ray discs, ultra-high density optical discs, flash memory cards (e.g., SD cards, mini SD cards, Micro-SD cards, etc.), magnetic floppy disks, etc. Computer-readable storage media do not contain carrier waves or transient electronic signals transmitted wirelessly or via wired connections.

[0069] The memory stores executable code, which, when processed by the processor, can cause the processor to execute some or all of the methods described above.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0071] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0072] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device wake-up method, characterized in that, include: Determine whether the discharge time of the bus capacitor of the device to be woken up exceeds the preset time; If so, determine whether a wake-up signal has been received; If a wake-up signal is received, the device will be woken up; if no wake-up signal is received, the device will remain in standby mode.

2. The device wake-up method according to claim 1, characterized in that: The device to be woken up is equipped with a main chip, and the bus capacitor is connected in series with the main chip.

3. The device wake-up method according to claim 2, characterized in that: The device to be woken up is connected to a signal transmitting device, and the signal transmitting device sends a wake-up signal to the device to be woken up. When the signal transmitting device is powered off, it charges the bus capacitor.

4. The device wake-up method according to claim 3, characterized in that: When the signal transmitting device is powered off, charging the bus capacitor includes: When the signal transmitting device is powered off, it intermittently charges the bus capacitor multiple times; wherein each charging time is T1 and the charging time interval is T3.

5. The device wake-up method according to claim 4, characterized in that: The device to be woken up is connected to a power supply relay; When the signal transmitting device is powered off, it sends a power-off signal to the device to be woken up. When the device to be woken up receives a power-off signal, it shuts off the power supply relay after a delay of T2.

6. A wake-up circuit, characterized in that: The wake-up circuit is used to perform the device wake-up method as described in any one of claims 1-5.

7. An air conditioner, comprising an indoor unit and an outdoor unit, characterized in that: The indoor unit and the outdoor unit are provided with a wake-up circuit as described in claim 6.

8. The air conditioner according to claim 7, characterized in that, include: Indoor main chip and outdoor main chip; The indoor unit's main chip is controlled to open and close via a switch K1, and the outdoor unit's main chip is controlled to open and close via a switch K2; the switch K1 and switch K2 are connected by a live wire and a neutral wire. The main chip of the outdoor unit is connected in series with a bus capacitor C1 and a power module. The bus capacitor C1 supplies power to the power module. The K2 switch is connected in series with the bus capacitor C1 and a rectifier module. The K1 switch is connected in parallel with the bus capacitor C1 and the power module via a communication line; when the main chip of the indoor unit is turned off, the bus capacitor C1 is charged through the communication line.

9. The air conditioner according to claim 8, characterized in that: The rectifier module provides a DC bus voltage VDC to the power supply module. The power supply module has a minimum operating bus voltage VDC1. When VDC < VDC1, the power supply module stops working; when VDC ≥ VDC1, the power supply module works and the external unit's main chip is powered.

10. An electronic device, characterized in that, include: processor; as well as A memory having executable code stored thereon, which, when executed by the processor, causes the processor to perform the device wake-up method as described in any one of claims 1-5.

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