Clothes airing machine, lifting control system and method for clothes airing machine and storage medium

Abstract

The invention relates to a clothes airing machine, a lifting control system and method for the clothes airing machine and a storage medium. The lifting control system comprises a zero-cross detection module and a control module. The input end of the zero-cross detection module is connected with a mains supply access module of the clothes airing machine and is used for performing zero-cross detection on the mains supply accessed to the clothes airing machine; the signal input end of the control module is connected with the output end of the zero-cross detection module, and the control module is used for receiving a zero-cross detection signal sent by the zero-cross detection module and controlling the clothes airing machine to execute the lifting action according to the zero-cross detection signal. According to the technical scheme of the invention, the operation reliability of the clothes airing machine in sudden scenes such as remote controller loss, battery exhaustion or sudden power failure can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of smart homes, and in particular to a clothes drying machine and a lifting control system, method, and storage medium therefor. Background Art

[0002] The existing lifting and lowering control technology of smart clothes drying machines has covered a variety of operation methods, including remote control, voice commands, gesture recognition, mobile terminal applications, and light lifting.

[0003] At present, remote control has become the most widely used control method in the market due to its strong practicality and low cost. It is especially suitable for models that only support a single control mode. This method transmits instructions through wireless signals. Users can remotely control the lifting and lowering functions of the clothes drying machine by operating the buttons on the remote control. It has the characteristics of simple deployment and intuitive operation.

[0004] However, the implementation of this lifting control is completely dependent on the physical device of the remote control. The user must hold the remote control for a long time. If the remote control is lost, damaged or the battery is exhausted, the device will be completely inoperable and the user will not be able to quickly restore control of the device. The above defects seriously limit the operational reliability of the smart clothes drying machine. Summary of the Invention

[0005] The present application provides a clothes drying machine and a lifting control system, method and storage medium therefor, which can improve the operational reliability of the clothes drying machine in emergency scenarios such as the remote control being lost, damaged or the battery being exhausted.

[0006] In the first aspect, the present application provides a lifting and lowering control system for a clothes drying machine, comprising a zero-crossing detection module and a control module; the input end of the zero-crossing detection module is connected to the mains power access module of the clothes drying machine, for performing zero-crossing detection on the mains power connected to the clothes drying machine; the signal input end of the control module is connected to the output end of the zero-crossing detection module, for receiving a zero-crossing detection signal sent by the zero-crossing detection module, and controlling the clothes drying machine to perform lifting and lowering actions according to the zero-crossing detection signal.

[0007] In one possible implementation, the present application provides a lifting and lowering control system for a clothes drying machine, further including: a power conversion module; the power conversion module is respectively connected to the zero-crossing detection module and the control module, and is used to power the zero-crossing detection module and the control module.

[0008] In one possible implementation, the present application provides a lifting control system for a clothes drying machine, further including: a position detection module; the position detection module is connected to the control module, and is used to detect the stroke position information of the clothes drying rod assembly in the clothes drying machine, so that after receiving the zero-crossing detection signal, the control module controls the clothes drying rod assembly to perform a lifting or lowering action based on the stroke position information of the clothes drying rod assembly.

[0009] In a second aspect, an embodiment of the present application also provides a method for controlling the lifting and lowering of a clothes drying machine, comprising: receiving a zero-crossing detection signal, wherein the zero-crossing detection signal is obtained by performing a zero-crossing detection on the mains power connected to the clothes drying machine; and controlling the clothes drying machine to perform a lifting and lowering action according to the zero-crossing detection signal.

[0010] In one possible implementation, controlling the clothes drying machine to perform a lifting action according to the zero-crossing detection signal specifically includes: determining the power supply status of the mains power based on the zero-crossing detection signal; when the power supply status is power off, detecting whether the mains power is restored within a preset time threshold, and if so, obtaining the travel position information of the clothes drying machine; generating a target lifting control instruction based on the travel position information, and controlling the clothes drying machine to perform a lifting operation based on the target lifting control instruction.

[0011] In one possible implementation, determining the power supply status of the mains specifically includes: detecting the level status of the target pin, and when it is detected that the level status is a first level, recording the first level duration of the first level within the signal cycle, wherein the level status is obtained based on the zero-crossing detection module according to claim 1 input to the target pin; when the first level duration is greater than a preset first level time threshold, determining that the power supply status of the mains is power off; otherwise, determining that the power supply status of the mains is normal power supply.

[0012] In one possible implementation, based on the travel position information, a target lifting control instruction is generated, and based on the target lifting control instruction, the clothes drying machine is controlled to perform a lifting operation, specifically including: when the travel position information is between the upper limit and the preset first position, a target lowering control instruction is generated, and based on the target lowering control instruction, the clothes drying machine is controlled to perform a lowering operation; when the travel position information is between the preset first position and the lower limit, a target rising control instruction is generated, and based on the target, a control instruction is generated to control the clothes drying machine to perform an rising operation.

[0013] In a possible implementation, after detecting whether the mains power is re-energized within a preset time threshold, the method further includes: if the mains power is not detected to be re-energized within the preset time threshold, automatically clearing the recorded first level duration.

[0014] In a fourth aspect, an embodiment of the present application further provides a clothes drying machine comprising the lifting control system described in any one of the above items.

[0015] In a fourth aspect, an embodiment of the present application further provides a computer device, which includes a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the above method when executing the computer program.

[0016] In a fifth aspect, an embodiment of the present application further provides a computer-readable storage medium, wherein the storage medium stores a computer program, and the computer program can implement the above method when executed by a processor.

[0017] The embodiments of the present application provide a clothes drying machine and a lifting control system, method, and storage medium therefor, which have the following advantages over the prior art:

[0018] A lifting and lowering control system for a clothes dryer provided in an embodiment of the present application includes a zero-crossing detection module and a control module; the input end of the zero-crossing detection module is connected to the mains power access module of the clothes dryer, for performing zero-crossing detection on the mains power connected to the clothes dryer; the signal input end of the control module is connected to the output end of the zero-crossing detection unit, for receiving a zero-crossing detection signal sent by the zero-crossing detection module, and controlling the clothes dryer to perform lifting and lowering actions according to the zero-crossing detection signal; compared with the prior art, the technical solution of the present application is to set a zero-crossing detection module and a control module, and the zero-crossing detection module performs zero-crossing detection on the connected mains power and sends a signal to the control module, and the control module controls the lifting and lowering of the clothes dryer accordingly, without relying on a remote control. In emergency scenarios such as the remote control being lost, damaged or the battery being exhausted, the user can operate the mains power switch to lift and lower the clothes dryer, which can avoid the limitations of traditional remote control control methods and improve operational reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 This is a structural diagram of a lifting control system for a clothes drying machine provided in this application;

[0023] Figure 2 A schematic structural diagram of a zero-crossing detection module according to an embodiment of the present application;

[0024] Figure 3 A schematic structural diagram of an optical coupling unit according to an embodiment of the present application;

[0025] Figure 4 This is another structural diagram of a zero-crossing detection module according to an embodiment of the present application;

[0026] Figure 5 A schematic structural diagram of a power conversion module according to an embodiment of the present application;

[0027] Figure 6 This is another structural schematic diagram of a power conversion module according to an embodiment of the present application;

[0028] Figure 7 A schematic flow chart of an embodiment of a method for controlling the lifting of a clothes drying machine provided by the present application;

[0029] Figure 8 A schematic structural diagram of a clothes drying machine provided in this application;

[0030] Figure 9 This is a structural diagram of a computer device provided by this application.

[0031] Description of reference numerals:

[0032] Mains access module 100, zero-crossing detection module 10, control module 20, input end 101 of zero-crossing detection module, optical coupling unit 102, DC power input unit 103, voltage divider unit 1021, protection subunit 1022, optical coupling subunit 1023, first filtering unit 104, power conversion module 30, step-down conversion unit 301, energy storage unit 302, power output unit 303, 12V power input unit 304, second filtering unit 305 and third filtering unit 306, lifting control system 200. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0034] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, these are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0035] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0036] It should also be understood that the terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0037] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0038] As used in this specification and the appended claims, the term "if" can be interpreted as "when" or "upon" or "in response to determining" or "in response to detecting," depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "upon determination" or "in response to determining" or "upon detection of [described condition or event]" or "in response to detecting [described condition or event]," depending on the context.

[0039] Figure 1 This is a schematic diagram of the structure of a lifting control system for a clothes drying machine provided in this application; Figure 1 As shown, the lifting control system for the clothes drying machine includes a zero-crossing detection module 10 and a control module 20, which are specifically as follows:

[0040] In one embodiment, an input end of the zero-crossing detection module 10 is connected to the mains power access module 100 of the clothes drying machine, for performing zero-crossing detection on the mains power accessed to the clothes drying machine.

[0041] In one embodiment, the signal input end of the control module 20 is connected to the output end of the zero-crossing detection unit 10, for receiving a zero-crossing detection signal sent by the zero-crossing detection module 10, and controlling the clothes drying machine to perform lifting actions according to the zero-crossing detection signal.

[0042] In one embodiment, the clothes drying machine is provided with a mains power access module 100 , wherein the mains power access module 100 is used to connect the clothes drying machine to the mains power, and the mains power access module 100 includes a mains neutral wire and a mains live wire.

[0043] In one embodiment, the input end 101 of the zero-crossing detection module 10 includes a first mains access pin ACL1 and a second mains access pin ACN2; wherein, the first mains access pin ACL1 is connected to the mains live wire, and the second mains access pin ACN2 is connected to the mains neutral wire.

[0044] Specifically, zero-crossing detection is a technique commonly used in AC signal processing to accurately identify the moment when a sinusoidal voltage passes through zero when transitioning from a positive half-cycle to a negative half-cycle or vice versa.

[0045] Specifically, zero-crossing detection needs to fully capture the switching points of the positive and negative half-cycles of the alternating current, and the AC neutral line and the AC live line together constitute a complete voltage circuit. The AC neutral line and the AC live line are simultaneously connected through the first AC access pin ACL1 and the second AC access pin ACN2. The zero-crossing detection module 10 can accurately extract the zero-crossing point of the sine wave and generate a stable square wave signal, providing a reliable judgment basis for the subsequent control module.

[0046] In one embodiment, the zero-crossing detection module 10 further includes an optical coupling unit 102 and a DC power input unit 103, wherein the input end of the optical coupling unit 102 is connected to the output end of the mains access module 100 of the clothes drying machine, and the output end of the optical coupling unit 102 and the output end of the DC power input unit 103 are respectively connected to the signal input end of the control module 20. Figure 2 As shown, Figure 2 This is a schematic structural diagram of a zero-crossing detection module according to an embodiment of the present application.

[0047] Specifically, the input end of the optical coupling unit 102 is connected to the output end of the mains access module 101 of the clothes drying machine through the first mains access pin ACL1 and the second mains access pin ACN2.

[0048] In one embodiment, the optical coupling unit 102 includes a voltage dividing subunit 1021, a protection subunit 1022 and an optical coupling subunit 1023; Figure 3 As shown, Figure 3This is a schematic structural diagram of an optical coupling unit according to an embodiment of the present application.

[0049] Specifically, the first end of the voltage divider subunit 1021 is connected to the first mains access pin ACL1, the second end of the voltage divider subunit 1021 is connected to the first end of the protection subunit 1022, the second end of the protection subunit 1022 and the second mains access pin ACN2 are respectively connected to the input end of the optical coupling subunit 1023, and the output end of the optical coupling subunit 1023 is connected to the signal input end of the control module 20.

[0050] Specifically, the voltage dividing subunit 1021 includes a first voltage dividing resistor R40 and a second voltage dividing resistor R41 , the protection subunit 1022 includes a first diode D7 , and the optical coupling subunit 1023 includes an optical coupler U2 .

[0051] Specifically, the first voltage-dividing resistor R40 and the second voltage-dividing resistor R41 are connected in series.

[0052] Specifically, the first end of the first voltage-dividing resistor R40 is connected to the first mains access pin ACL1, the second end of the first voltage-dividing resistor R40 is connected to the first end of the second voltage-dividing resistor R41, the second end of the second voltage-dividing resistor R41 is respectively connected to the negative electrode of the first diode D7 and the first pin of the optocoupler U2, the second pin of the optocoupler U2 is respectively connected to the positive electrode of the first diode D7 and the input end of the second mains access pin ACN2, the third pin of the optocoupler U2 is grounded, and the fourth pin of the optocoupler U2 is connected to the signal input end of the control module 20.

[0053] Specifically, the voltage divider subunit 1021 divides the high voltage of the AC neutral line connected to the first AC access pin ACL1 into the low voltage range of the optical coupling subunit 1023 through a series resistor to prevent the optical coupler from being damaged due to direct access to the high voltage; and the divided signal of the voltage divider subunit 1021 is transmitted to the protection subunit 1022, and the reverse voltage or surge impact is further eliminated through the first diode D7 in the protection subunit 1022, ensuring that the voltage at the input end of the optical coupler of the optical coupling subunit 1023 is always within the safety threshold; the conversion from high voltage to low voltage is realized, and the circuit reliability is enhanced through the multi-level protection mechanism composed of the voltage divider subunit 1021 and the protection subunit 1022.

[0054] Specifically, the input end of the optical coupling sub-unit 1023 is simultaneously connected to the output end of the protection sub-unit 1022 and the second AC power access pin ACN2; when the AC power is normal, the AC voltage between the AC live wire and the AC neutral wire drives the LED inside the optical coupler U2 to periodically turn on or off, and the output end of the optical coupling sub-unit 1023 generates a 50Hz square wave signal with a period of 20ms synchronized with the AC power, and based on the connection relationship between the optical coupling sub-unit 1023 and the signal input end of the control module 20, the square wave signal is transmitted to the control module 20, so that the control module 20 can accurately determine the on / off status of the AC power by detecting whether the square wave signal has high and low level switching.

[0055] Specifically, the output end of the optocoupler U2 is directly connected to the signal input end of the control module 20. The phototransistor inside the optocoupler U2 has no physical connection with the input LED diode. Information is transmitted only through optical signals, which can completely isolate the high voltage of the mains power and the low-voltage control circuit of the control module 20, preventing high voltage from entering and causing the chip to burn, while suppressing the interference of common-mode noise on the control logic.

[0056] In one embodiment, the zero-crossing detection module further includes a first filtering unit 104; Figure 4 As shown, Figure 4 This is another structural diagram of a zero-crossing detection module according to an embodiment of the present application.

[0057] In which, the first filtering unit 104 includes a third voltage-dividing resistor R42 and a first filtering capacitor C9, the first end of the third voltage-dividing resistor R42 is connected to the input end of the DC power input unit 103, the second end of the third voltage-dividing resistor R42 is respectively connected to the fourth pin of the optocoupler U2 and the first end of the first filtering capacitor C9, and the second end of the first filtering capacitor C9 is grounded.

[0058] Specifically, the first filtering unit 104 is an RC low-pass filtering module.

[0059] Specifically, when the fourth pin of the optocoupler U2, that is, the optocoupler output end, is directly connected to the signal input end of the control module 20, if there is no filtering module, voltage fluctuations or current shocks may damage the chip; therefore, current limiting is set based on the third voltage divider resistor R42 to limit the optocoupler output current within a safe range; at the same time, the first filter capacitor C9 further suppresses glitches in the signal by absorbing instantaneous voltage fluctuations, preventing the chip pins from being damaged due to voltage overshoot, and extending the hardware life.

[0060] Specifically, in a complex electromagnetic environment, the AC power line may introduce common-mode or differential-mode interference; the second end of the first filter capacitor C9 in the first filter unit 104 is grounded, which can bypass high-frequency noise to the ground and reduce its coupling effect on the control chip.

[0061] In one embodiment, the lifting control system for a clothes drying machine provided in the present application further includes a position detection module.

[0062] In one embodiment, the position detection module is connected to the control module 20, and is used to detect the travel position information of the clothes drying rod assembly in the clothes drying machine, so that after receiving the zero-crossing detection signal, the control module 20 controls the clothes drying rod assembly to perform an ascending or descending action based on the travel position information of the clothes drying rod assembly.

[0063] Specifically, the position detection module includes but is not limited to a Hall sensor; by installing a magnetic ring on the shaft of the clothes drying rod lifting motor, the Hall sensor calculates the number of motor rotations by inducing changes in the magnetic field, and converts the number of motor rotations into the clothes drying rod lifting distance to determine the travel position information of the clothes drying rod assembly in the clothes drying machine.

[0064] In one embodiment, the control module 20 is used to receive the zero-crossing detection signal sent by the zero-crossing detection module 10 and the travel position information of the clothes drying rod assembly in the clothes drying machine sent by the position detection module; determine the power supply status of the mains power according to the received zero-crossing detection signal, and when the power supply status is power off, detect whether the mains power is re-powered within a preset time threshold; if so, generate a target lifting control instruction based on the travel position information, and control the clothes drying machine to perform lifting operations based on the target lifting control instruction.

[0065] Preferably, the zero-crossing detection signal is a square wave signal.

[0066] Specifically, the input end of the control module 20 is the AC_Zero pin.

[0067] Specifically, the control module 20 is used to determine the power supply status of the mains according to the received zero-crossing detection signal, by detecting the level state of the AC_Zero pin, and when it is detected that the level state is a first level, recording the first level duration of the first level within the signal cycle, wherein the level state is obtained based on the zero-crossing detection module input to the target pin; when the first level duration is greater than the preset first level time threshold, it is determined that the power supply status of the mains is power off; otherwise, it is determined that the power supply status of the mains is normal power supply.

[0068] Preferably, when the detected continuous first level is greater than 15ms and less than 0.5s, it is determined that the power supply state of the mains power is a short-term power outage.

[0069] Specifically, the control module 20 is used to generate a target lifting control instruction based on the travel position information. When the travel position information is between the upper limit and the preset first position, a target lowering control instruction is generated, and based on the target lowering control instruction, the clothes drying machine is controlled to perform a lowering operation; when the travel position information is between the preset first position and the lower limit, a target rising control instruction is generated, and based on the target, a control instruction is generated to control the clothes drying machine to perform an rising operation.

[0070] In one embodiment, when the clothes dryer only supports remote control, if the remote control is lost or the battery is exhausted, the user will be unable to operate the clothes dryer. In this application, by providing a zero-crossing detection circuit, the clothes dryer can be connected to the mains power access module of the clothes dryer by using the input end of the zero-crossing detection module 10 to detect the zero-crossing of the mains power connected to the clothes dryer in the absence of a remote control to capture the zero-crossing point of the AC power. The detected zero-crossing detection signal is converted and safely transmitted to the control module 20 through the voltage divider subunit 1021, the protection subunit 1022 and the optical coupling subunit 1023, so that the subsequent control module 20 can determine the power supply status of the mains power based on the received zero-crossing detection signal. If the power is temporarily cut off and then powered on again, the control module 20 generates a lifting control instruction for the clothes dryer in combination with the travel position information of the clothes dryer. This provides a method for the user to operate the clothes dryer when the remote control is unavailable. In addition, through electrical isolation and filtering protection, the safety and reliability of the circuit are enhanced, thereby improving the intelligence level and user experience of the clothes dryer, and ensuring the normal operation of the clothes dryer even when the remote control is unavailable.

[0071] In one embodiment, the lifting control system for a clothes drying machine provided by the present application further includes: a power conversion module 30 .

[0072] In one embodiment, the power conversion module 30 is connected to the zero-crossing detection module 10 and the control module 20 respectively, and is used to supply power to the zero-crossing detection module 10 and the control module 20 .

[0073] In one embodiment, the power conversion module 30 includes a step-down conversion unit 301, an energy storage unit 302 and a power output unit 303, wherein the output end of the step-down conversion unit 301 is connected to the input end of the energy storage unit 302, the output end of the energy storage unit 302 is connected to the power output unit 303, and the power output unit 303 is connected to the DC power input unit 103.

[0074] In one embodiment, the power conversion module 30 further includes a 12V power input unit 304; wherein the 12V power input unit 304 is connected to the input end 301 of the step-down conversion unit; Figure 5 As shown, Figure 5 This is a schematic structural diagram of a power conversion module according to an embodiment of the present application.

[0075] Specifically, the power output unit 303 outputs a voltage of 5V.

[0076] Specifically, the step-down conversion unit 301 efficiently steps down the 12V input voltage to 5V, and outputs it through the power output unit 303, thereby providing a stable low-voltage power supply for the control module 20 and peripheral circuits.

[0077] Specifically, the step-down conversion unit 301 includes a step-down chip U5, and the energy storage unit 302 includes an energy storage capacitor EC14.

[0078] Specifically, the first pin of the step-down chip U5 is connected to the 12V power input unit 304, the fourth pin of the step-down chip U5 and the power output unit 303 are respectively connected to the positive electrode of the energy storage capacitor EC14, and the negative electrode of the energy storage capacitor EC14 and the second pin of the step-down chip U5 are respectively grounded.

[0079] Specifically, since the positive electrode of the energy storage capacitor EC14 is directly connected to the fourth pin of the step-down chip U5 and the power output unit 303; when the mains power is normal, the step-down chip U5 converts the input 12V voltage into a stable 5V output, which is directly applied to the positive electrode of the energy storage capacitor EC14 to charge the energy storage capacitor EC14.

[0080] Specifically, the negative pole of the energy storage capacitor EC14 is grounded and its positive pole is connected to the power output unit 303 to form a complete energy storage and discharge circuit; when the mains power or 12V input is accidentally interrupted, the energy storage capacitor EC14 supplies power to the control module 20 through the energy storage and discharge circuit, achieving a short-term capacitor disconnection fault and avoiding operation interruption or data loss.

[0081] In one embodiment, the power conversion module 30 further includes a second filtering unit 305 and a third filtering unit 306; wherein the first end of the second filtering unit 305 is connected to the step-down conversion unit 301, the second end of the second filtering unit 305 is respectively connected to the input end of the energy storage unit 302 and the first end of the third filtering unit 306, and the second end of the third filtering unit 306 is connected to the output end of the energy storage unit 302; Figure 6 As shown, Figure 6 This is another structural schematic diagram of a power conversion module according to an embodiment of the present application.

[0082] Specifically, the second filtering unit 305 includes a first inductor L3; the third filtering unit 306 includes a second filtering capacitor C12; wherein, the first end of the first inductor L3 is connected to the fifth pin of the buck chip U5, the second end of the first inductor L3 is respectively connected to the positive electrode of the energy storage capacitor EC14 and the first end of the second filtering capacitor C12, the second end of the second filtering capacitor C12 is connected to the negative electrode of the energy storage capacitor EC14, and the first end of the second filtering capacitor C12 is connected to the power output unit 303.

[0083] Specifically, the first inductor L3 is connected in series between the fifth pin of the buck chip U5 and the energy storage capacitor EC14 to form an LC low-pass filter network; when the load changes instantaneously, the first inductor L3 slows down the current rise rate by hindering the current mutation, thereby avoiding a sharp drop in the power supply voltage; at the same time, the second filter capacitor C12 compensates for the instantaneous current demand through rapid charging and discharging, maintaining a stable output voltage; and the addition of the first inductor L3 isolates the charging and discharging path of the energy storage capacitor EC14 from high-frequency noise, reducing the heat and life loss of the capacitor caused by high-frequency charging and discharging, and improving energy storage efficiency.

[0084] In one embodiment, a power conversion module 30 is provided including a step-down conversion unit 301 and an energy storage unit 302, which can not only provide a stable power supply when the mains power is normal, but also provide short-term power support through the energy storage capacitor EC14 when the mains power is accidentally interrupted, thereby maintaining circuit operation and preventing operation interruption or data loss caused by power outage; in addition, the presence of the second filtering unit 305 and the third filtering unit 306 improves the stability of the power supply, reduces the impact of voltage fluctuations and electromagnetic interference, thereby enhancing the reliability and durability of the clothes drying machine, and ensuring that the clothes drying machine can operate normally under various circumstances.

[0085] In one embodiment, the power output unit 303 of the power conversion module 30 is connected to the DC power input unit 103 of the zero-crossing detection module 10, and the power output unit 303 is used to output the processed 5V voltage to the DC power input unit 103 of the zero-crossing detection module 10, thereby realizing a closed loop of the zero-crossing detection module 10.

[0086] Specifically, when the mains power is normal, the 12V voltage is converted to 5V by the step-down conversion unit 301, part of which is directly used to power the zero-crossing detection module 10 and the control module 20 through the power output unit 303, and the other part is used to charge the energy storage unit 302, so that the energy storage capacitor EC14 stores sufficient electrical energy; when a sudden power outage occurs, the energy storage unit 302 immediately releases electrical energy through the discharge circuit, maintaining the 5V output for more than 1 second, ensuring that the control module 20 can still detect the mains power recovery status and execute the lifting and lowering control logic after a short power outage, thereby avoiding system function interruption due to power outage.

[0087] Example 2, see Figure 7 , Figure 7 This is a flow chart of an embodiment of a method for controlling the lifting of a clothes drying machine provided by the present application, as shown in FIG. Figure 7 As shown, the lifting control method includes steps 701 and 702, which are specifically as follows:

[0088] Step 701: receiving a zero-crossing detection signal, wherein the zero-crossing detection signal is obtained by performing a zero-crossing detection on the mains power connected to the clothes drying machine.

[0089] Step 702: Control the clothes drying machine to perform a lifting action according to the zero-crossing detection signal.

[0090] In one embodiment, when controlling the clothes drying machine to perform a lifting action according to the zero-crossing detection signal, the power supply status of the mains is determined based on the zero-crossing detection signal; when the power supply status is power off, it is detected within a preset time threshold whether the mains is re-energized; if so, the travel position information of the clothes drying machine is obtained; based on the travel position information, a target lifting control instruction is generated, and based on the target lifting control instruction, the clothes drying machine is controlled to perform the lifting operation.

[0091] In one embodiment, when determining the power supply status of the mains, the level status of the target pin is detected. When it is detected that the level status is a first level, the first level duration of the first level within the signal cycle is recorded, wherein the level status is obtained based on the zero-crossing detection module of the lifting and lowering control circuit as described in the above-mentioned embodiment 1 input to the target pin; when the first level duration is greater than the preset first level time threshold, the power supply status of the mains is determined to be power off; otherwise, the power supply status of the mains is determined to be normal power supply.

[0092] Specifically, the zero-crossing detection module mentioned in Example 1 has its input end connected to the AC power access module of the clothes drying machine, inputs the AC power signal into the optical coupling unit through the input end, and detects the zero-crossing point of the AC power signal through the optical coupling unit to convert the AC power signal into a square wave signal, and inputs the square wave signal into the input end of the control module, wherein the zero-crossing point refers to the moment when the voltage of the AC power changes from positive to zero or from zero to negative within one cycle.

[0093] Specifically, the input end of the control module is the target pin, which is the pin in the control module that receives the square wave signal.

[0094] Specifically, when the mains power is cut off, there is no mains power access in the mains power access module, so the zero-crossing detection module cannot input the mains power signal into the optical coupling module based on the connection with the mains power access module. At this time, no current flows through the LED inside the optocoupler. At this time, the target pin of the control module will maintain a constant first level state.

[0095] Specifically, since the square wave signal regularly switches between high and low levels within a period, the control module presets a first level time threshold, which is used to distinguish whether the mains power is a normal short-term fluctuation or a real power outage.

[0096] Preferably, when the detected continuous low-level time is greater than 15ms and less than 0.5s, it is determined to be a short power outage.

[0097] Preferably, the first level time threshold is set to be greater than the normal first level time in the signal cycle, but not greater than the signal cycle duration, so as to avoid misjudgment of the level status.

[0098] Specifically, the control module will continuously detect the level status of the target pin within the cycle. When it is detected that the level status is the first level, the first level duration of the first level within the signal cycle is recorded. If the recorded first level duration exceeds the first level time threshold, the control module determines that the power supply status of the AC power is power off; if the recorded first level duration does not exceed the first level time threshold, it is determined that the first level is a normal fluctuation, and the power supply status of the AC power is normal power supply.

[0099] In one embodiment, the power conversion module mentioned in Example 1 is provided with an energy storage module. When the power supply state of the mains is off, the energy storage module will provide temporary power supply for the control module and the zero-crossing detection circuit to ensure that the control module and the zero-crossing detection circuit can also perform detection operations on whether the mains is powered on again when the mains is off.

[0100] In one embodiment, when the power supply state is power off, when detecting whether the AC power is restored within a preset time threshold, the level state of the target pin can be continuously detected within the preset time threshold. If it is detected that the level state is converted from a first level to a second level, the duration of the second level is recorded. When the duration of the second level is greater than the preset second level duration, it is determined that the AC power is restored.

[0101] The first level may be a low level or a high level; when the first level is a low level, the second level is a high level; when the first level is a high level, the second level is a low level.

[0102] Specifically, the preset time threshold may be set based on the power supply duration of the energy storage unit to prevent the detection operation of the control module from being effectively performed during a power outage.

[0103] In one embodiment, when the power supply status is power off, but the mains power is restored within a preset time threshold, the current power off is considered to be a short power off.

[0104] Specifically, the short power outage can be understood as a user-initiated power outage, such as turning off the mains power switch for a short time and then turning it back on to trigger the raising and lowering operation of the clothes drying machine.

[0105] In one embodiment, after detecting whether the mains power is re-energized within a preset time threshold, the method further includes: if the mains power is not detected to be re-energized within the preset time threshold, automatically clearing the recorded first level duration.

[0106] Specifically, by continuously detecting the level state of the target pin within a preset time threshold, if it is detected that the level state is converted from a first level to a second level, and the recorded second level duration is not greater than the preset second level duration threshold, or it is detected that the level state continues to maintain the first level, it is determined that the AC power has not been re-powered.

[0107] In one embodiment, when the power supply status is power off and the mains power is not restored within a preset time threshold, the current power off is considered to be a long power off.

[0108] Specifically, the long power outage can be understood as a power supply abnormality, and since the power outage time exceeds the power supply time of the energy storage module, the control module is in a power-off state at this time, and therefore, the subsequent clothes drying machine lifting operation is not performed.

[0109] In one embodiment, when the power-off state is a short-term power-off, the travel position information of the clothes drying rod assembly in the clothes drying machine is also detected based on the position detection module, and based on the connection relationship between the control module and the position detection module, the control module can directly obtain the travel position information of the clothes drying machine.

[0110] Specifically, when obtaining the travel position information of the clothes drying machine, the current number of Hall effect circles and the total number of travel circles of the clothes drying machine are obtained; and the travel position information of the clothes drying machine is determined based on the ratio of the current number of Hall effect circles to the total number of travel circles.

[0111] Specifically, by installing a Hall sensor on the driving motor of the clothes drying machine, a corresponding pulse signal is generated by detecting the change in the magnetic pole of the motor rotor of the driving motor, and the current number of Hall turns is determined based on the statistical number of the pulse signals.

[0112] Preferably, the statistical signal data of the pulse signal is divided by the standard number of signals per circle to determine the current number of Hall circles.

[0113] Specifically, the total number of full turns of the total stroke is the total number of turns required for the clothes drying machine to move from an upper limit position to a lower limit position; this value is fixed and can be preset when the clothes drying machine leaves the factory or obtained through a learning process.

[0114] Specifically, the current Hall effect number is divided by the total stroke number to obtain a ratio of the current Hall effect number to the total stroke number, wherein the ratio represents the current position of the clothes drying machine relative to its total stroke.

[0115] Specifically, the ratio value is compared with a preset ratio threshold. If the ratio value is greater than the ratio threshold, the travel position information is determined to be between the upper limit and the preset first position. If the ratio value is not greater than the ratio threshold, the travel position information is determined to be between the preset first position and the lower limit.

[0116] Preferably, the ratio threshold is 50%.

[0117] In one embodiment, when the travel position information is between the upper limit and the preset first position, the control module generates a target descending control instruction, and controls the clothes drying machine to perform a descending operation based on the target descending control instruction.

[0118] In one embodiment, when the travel position information is between a preset first position and a lower limit position, the control module generates a target ascending control instruction, and based on the target generated control instruction, controls the clothes drying machine to perform an ascending operation.

[0119] Specifically, based on the stroke position information, after generating the target lifting control instruction, the target lifting control instruction is used as a relay power start signal to start the relay power supply, provide driving power for the driving motor of the clothes dryer, and then start the up / down switch of the driving motor, so that the clothes dryer performs lifting operations under the drive of the driving motor.

[0120] In summary, the embodiment of the present application realizes intelligent lifting and lowering control based on the on-off of the mains switch by integrating the zero-crossing detection module and the power conversion module; when the user turns off the mains switch for a short time, that is, when the power is cut off for a short time, the energy storage unit in the power conversion module can be used to maintain the short-term power supply of the control module, and the re-powering of the mains can be detected in real time. After detecting that the mains is back on, the travel position information of the clothes dryer can be accurately determined by the ratio of the number of Hall circles to the total number of travel circles, and the target lifting and lowering control instructions can be automatically triggered to realize the lifting and lowering control of the clothes dryer; this solution does not require a remote control to control the clothes dryer, and the operation can be completed only through the existing mains switch, which can significantly reduce the user's usage threshold and equipment cost; and by detecting the duration of the first level, it can also effectively distinguish between user active operation and power grid abnormality. The lifting and lowering operation of the clothes dryer is only performed when the user actively operates, providing a highly reliable and low-cost non-remote control solution for traditional clothes dryers.

[0121] Figure 8 A structural diagram of a clothes drying machine provided in this application; Figure 8 As shown, the clothes drying machine includes the lifting control system 200 described above.

[0122] In one embodiment, the clothes drying machine further includes a mains power access module 100 .

[0123] In one embodiment, the mains power access module 100 is connected 200 to the lifting control system.

[0124] In one embodiment, the lifting control system is used to execute the lifting control method for the clothes drying machine described in the above embodiment; the optional items in the above method embodiment are also applicable to this embodiment and will not be described in detail here.

[0125] like Figure 9 As shown, Figure 9 This is a structural diagram of a computer device provided by the present application; it includes a processor 111, a communication interface 112, a memory 113 and a communication bus 114, wherein the processor 111, the communication interface 112, and the memory 113 communicate with each other through the communication bus 114, and the memory 113 is used to store computer programs.

[0126] In one embodiment of the present application, the processor 111 is configured to implement the lifting control method for a clothes drying machine provided by any one of the aforementioned method embodiments when executing the program stored in the memory 113 .

[0127] Those skilled in the art will appreciate that all or part of the steps in the method of the above-described embodiment can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the steps in the method of the above-described embodiment.

[0128] Therefore, an embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the lifting and lowering control method for a clothes drying machine provided in any of the aforementioned method embodiments are implemented.

[0129] The storage medium is a physical, non-transient storage medium, such as a USB flash drive, a mobile hard drive, a read-only memory (ROM), a magnetic disk, or an optical disk, etc. Any physical storage medium capable of storing program code. The computer-readable storage medium may be non-volatile or volatile.

[0130] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0131] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of each unit is merely a logical functional division, and other division methods may be used in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not implemented.

[0132] The steps in the method of the embodiment of the present application can be adjusted in order, combined, and deleted according to actual needs. The units in the device of the embodiment of the present application can be combined, divided, and deleted according to actual needs. In addition, the functional units in the various embodiments of the present application can be integrated into a processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0133] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, terminal, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application.

[0134] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0135] Obviously, those skilled in the art may make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, as long as these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

[0136] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A lifting control system for a clothes drying machine, characterized in that: It includes a zero-crossing detection module and a control module; The input end of the zero-crossing detection module is connected to the mains power access module of the clothes drying machine, and is used to perform zero-crossing detection on the mains power accessed to the clothes drying machine; The signal input end of the control module is connected to the output end of the zero-crossing detection module, and is used to receive the zero-crossing detection signal sent by the zero-crossing detection module, and control the clothes drying machine to perform lifting actions according to the zero-crossing detection signal.

2. The lifting control system for a clothes drying machine according to claim 1, characterized in that: Also includes: Power conversion module; The power conversion module is connected to the zero-crossing detection module and the control module respectively, and is used to supply power to the zero-crossing detection module and the control module.

3. The lifting control system for a clothes drying machine according to claim 1, characterized in that: Also included is a position detection module; The position detection module is connected to the control module and is used to detect the stroke position information of the clothes drying rod assembly in the clothes drying machine, so that after receiving the zero-crossing detection signal, the control module controls the clothes drying rod assembly to perform an ascending or descending action based on the stroke position information of the clothes drying rod assembly.

4. A method for controlling the lifting of a clothes drying machine, characterized in that: include: Receiving a zero-crossing detection signal, wherein the zero-crossing detection signal is obtained by performing a zero-crossing detection on the mains power connected to the clothes drying machine; The clothes drying machine is controlled to perform a lifting action according to the zero-crossing detection signal.

5. The method for controlling the lifting of a clothes drying machine according to claim 4, wherein: The step of controlling the clothes drying machine to perform a lifting action according to the zero-crossing detection signal specifically includes: Determining a mains power supply status based on the zero-crossing detection signal; When the power supply state is off, detecting whether the mains power is back on within a preset time threshold, and if so, obtaining the travel position information of the clothes drying machine; Based on the travel position information, a target lifting control instruction is generated, and based on the target lifting control instruction, the clothes drying machine is controlled to perform a lifting operation.

6. The method for controlling the lifting of a clothes drying machine according to claim 5, wherein: Determining the power supply status of the mains power specifically includes: detecting a level state of a target pin, and when detecting that the level state is a first level, recording a first level duration of the first level within a signal cycle, wherein the level state is obtained based on the zero-crossing detection module according to claim 1 being input to the target pin; When the first level duration is greater than a preset first level time threshold, it is determined that the power supply state of the mains is power off; otherwise, it is determined that the power supply state of the mains is normal power supply.

7. The method for controlling the lifting of a clothes drying machine according to claim 5, wherein: The generating of a target lifting control instruction based on the travel position information, and controlling the clothes drying machine to perform a lifting operation based on the target lifting control instruction, specifically includes: When the travel position information is between the upper limit and the preset first position, a target descending control instruction is generated, and based on the target descending control instruction, the clothes drying machine is controlled to perform a descending operation; When the travel position information is between a preset first position and a lower limit position, a target ascending control instruction is generated, and a control instruction is generated based on the target to control the clothes drying machine to perform an ascending operation.

8. The method for controlling the lifting of a clothes drying machine according to claim 6, wherein: After detecting whether the mains power is re-energized within a preset time threshold, the method further includes: If the mains power is not detected to be re-energized within a preset time threshold, the recorded duration of the first level is automatically cleared.

9. A clothes drying machine, characterized in that: The lifting control system comprises the lifting control system according to any one of claims 1 to 3.

10. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 4 to 8 can be implemented.

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