Power supply control method of knob assembly, knob assembly and household appliance

Abstract

The invention provides a power supply control method of a knob assembly, the knob assembly and a household appliance, and relates to the technical field of smart home. Wherein the knob assembly comprises a knob, and the knob comprises a photovoltaic panel assembly, a load and a chargeable power supply module; the method comprises the steps of obtaining illumination intensity of an environment where the knob is located and residual electric quantity of the power module; determining a corresponding power supply mode based on the illumination intensity and the residual electric quantity; the photovoltaic panel and the built-in battery are arranged in the knob, the illumination intensity and the electric quantity of the built-in battery are fully considered, different power supply modes are formulated, fine management of electric energy is achieved, stable power supply is achieved, user intervention is reduced, and user experience is improved.

Description

Technical Field

[0001] This invention relates to the field of smart home technology, and in particular to a power supply control method for a knob assembly, the knob assembly, and a home appliance. Background Technology

[0002] Appliance linkage refers to the interaction between multiple functionally related devices, where a change in the operating state of one device simultaneously adjusts the operating state of its associated devices. Current appliance linkage systems are generally based on products from the same brand or even deeply related products, requiring users to spend significant sums of money upgrading their appliances to experience this functionality.

[0003] At the same time, how to achieve a stable power supply to the knob in its small internal space is also an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this invention is to provide a power supply control method for a knob assembly, a knob assembly, and a home appliance. By setting a photovoltaic panel and a built-in battery in the knob, and fully considering the light intensity and the power of the built-in battery, different power supply methods are formulated to achieve refined management of electrical energy, realize stable power supply, reduce user intervention, and improve user experience.

[0005] In a first aspect, the present invention provides a power supply control method for a knob assembly, the knob assembly including a knob, the knob including a photovoltaic panel assembly, a load, and a rechargeable power module; the method includes: Obtain the ambient light intensity of the area where the knob is located and the remaining power of the power module; The appropriate power supply method is determined based on the light intensity and the remaining power.

[0006] In some preferred embodiments of the present invention, the knob assembly further includes: at least two electronic tags; a load including: an RFID reader; the knob for coupling with a corresponding first device, the electronic tags being disposed on the side of the first device opposite to the knob; the electronic tags storing tag information corresponding to different operating states of the first device; the RFID reader for reading tag information from the electronic tags at corresponding positions as the knob rotates; and the step of determining the corresponding power supply method based on light intensity and remaining power includes: The power supply method for the RFID reader is determined based on the light intensity and remaining battery power.

[0007] In some preferred embodiments of the present invention, the step of determining the power supply method for the RFID reader based on light intensity and remaining battery power includes: If the light intensity is greater than the preset intensity value, determine whether the RFID reader has a power requirement; If the RFID reader requires power, it can be powered by a photovoltaic panel.

[0008] In some preferred embodiments of the present invention, after determining whether the RFID reader has a power requirement if the light intensity is greater than a preset intensity value, the method further includes: If the RFID reader does not require power, it charges the power module via a photovoltaic panel.

[0009] In some preferred embodiments of the present invention, the method further includes: If the light intensity is not greater than the preset intensity threshold, determine whether the remaining battery power is greater than the preset battery power value; If the remaining power is greater than the preset power value, the RFID reader will be powered by the photovoltaic panel and the power module.

[0010] In some preferred embodiments of the present invention, the load further includes: a communication module; the communication module is communicatively connected to a corresponding second device; the communication module is used to send the read tag information to the second device so that the second device is aware of the operating status of the first device and responds; the step of determining the appropriate power supply method based on the light intensity and remaining power also includes: If the remaining battery power is less than the preset value, reduce the transmission power of the communication module.

[0011] In some preferred embodiments of the present invention, the step of determining the appropriate power supply method based on light intensity and remaining power also includes: If the light intensity is greater than the preset intensity value, determine whether the communication module has a power requirement; If the communication module requires power, it is powered through photovoltaic panels.

[0012] In some preferred embodiments of the present invention, the step of determining the appropriate power supply method based on light intensity and remaining power also includes: If the communication module does not require power, the power module is charged through the photovoltaic panel.

[0013] In a second aspect, the present invention provides a knob assembly for performing the power supply control method of the knob assembly provided in the first aspect.

[0014] Thirdly, the present invention provides a household appliance, which is provided with the knob assembly provided in the second aspect above.

[0015] This invention brings the following beneficial effects: This invention provides a power supply control method for a knob assembly, a knob assembly, and a home appliance. The knob assembly includes a knob, which in turn includes a photovoltaic panel assembly, a load, and a rechargeable power module. The method includes: acquiring the light intensity of the environment where the knob is located and the remaining power of the power module; determining the appropriate power supply mode based on the light intensity and the remaining power; and by setting a photovoltaic panel and a built-in battery in the knob, and fully considering the light intensity and the power of the built-in battery, different power supply modes are formulated to achieve refined power management, stable power supply, reduced user intervention, and improved user experience. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 A flowchart illustrating a power supply control method for a knob assembly provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of a knob assembly provided in an embodiment of the present invention; Figure 3 A flowchart of another power supply control method for a knob assembly provided in an embodiment of the present invention.

[0018] Icons: 1-Knob; 11-Valve stem; 2-Electronic tag; 21-First electronic tag; 22-Second electronic tag; 23-Third electronic tag. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that like reference numerals and letters refer to like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0023] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0025] In the related art, for the first device and the second device to achieve the linkage function, usually both need to be products of the same brand manufacturer to ensure the consistency of the communication protocol. However, this restricts the user's independent choice to a certain extent. That is, when the user only has the first device of brand A, in order to achieve the linkage function, he has to buy the second device of the same brand. By adopting the solution in this embodiment, when the user only has the first device of brand A, he can choose to buy the second device of brand B, and the manufacturer of brand B provides the knob component in this embodiment of the present invention by way of gift or tie-in sale. Since the knob component in this embodiment of the present invention can obtain the operating state of the first device of brand A and can send the corresponding operating state to the second device of brand B through the communication module, the user can achieve the cross-brand device linkage function without replacing the first device of brand A, which greatly enhances the user's independent choice and improves the product use experience.

[0026] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0027] Example 1 This invention provides a power supply control method for a knob assembly. The knob assembly includes a knob 1, which includes a photovoltaic panel assembly, a load, and a rechargeable power module.

[0028] Specifically, the load in knob 1 generally includes a controller, a communication module, and a data acquisition module. The data acquisition module is used to obtain the operating status of the first device and send the operating status of the first device to the second device linked with the first device through the communication module, so that the second device can adjust its own operating status after receiving the operating status of the first device, thereby realizing device linkage. The controller can control each module to execute commands and can also control each module to adjust its own working mode.

[0029] The photovoltaic panel module is configured to directly supply power to the load or charge a rechargeable power module; the rechargeable power module can receive and store the electrical energy converted from ambient light by the photovoltaic panel module, and can also use its stored electrical energy to supply power to the load.

[0030] See Figure 1 The flowchart shown in this embodiment of the invention provides a power supply control method for a knob assembly, the method comprising: Step S102: Obtain the ambient light intensity of the environment where knob 1 is located and the remaining power of the power module.

[0031] Specifically, in traditional range hood and cooktop linkage systems, the cooktop has a built-in battery and linkage module, with the battery powering the cooktop. In the knob 1 provided in this embodiment of the invention, knob 1 replaces the knob 1 of a traditional cooktop, allowing for functional upgrades to cooktops that do not have linkage capabilities. To minimize modifications to existing equipment, knob 1 is designed without an external power supply, typically powered by a photovoltaic panel located on the outside of the knob 1 housing and a built-in rechargeable battery.

[0032] As time changes, the light intensity of the environment in which the stove is located also changes; and during long-term use, the battery needs to power knob 1 for a long time to keep knob 1 in communication with the range hood. Since the light intensity and battery power are constantly changing, it is necessary to monitor the light intensity and battery power in real time in order to formulate an efficient power supply strategy.

[0033] In some preferred embodiments of the present invention, a photoresistor can be used to measure light intensity, or a digital light intensity sensor can be used to acquire light intensity. The sensor is less affected by temperature and does not require frequent calibration. In some preferred embodiments of the present invention, a voltage divider circuit is designed for measuring the battery voltage.

[0034] Step S104: Determine the appropriate power supply method based on the light intensity and remaining power.

[0035] Specifically, different power supply strategies are formulated based on different light intensities and battery power levels. The general principle is: if the power generated by the current light intensity is sufficient to cover the load consumption, the photovoltaic panel is the main power supply unit; if the power generated by the current light intensity is insufficient to cover the load consumption, the battery supplements some of the power. Furthermore, in some preferred embodiments of the present invention, if the battery power consumption is high, the load operating mode can be further adjusted, such as adjusting the sampling frequency and reducing the broadcast frequency.

[0036] Furthermore, in some preferred embodiments of the present invention, the knob assembly further includes: at least two electronic tags 2; the load includes: an RFID reader; the knob 1 is used to couple with a corresponding first device, and the electronic tags 2 are disposed on the side of the first device opposite to the knob 1; the electronic tags 2 respectively store tag information corresponding to different operating states of the first device; the RFID reader is used to read the tag information in the electronic tags 2 at the corresponding positions as the knob 1 rotates.

[0037] For details, see Figure 2 The schematic diagram shown in this embodiment of the invention provides a rotary assembly, which includes a knob 1 and five electronic tags 2; the knob 1 is disposed on a first surface of a first device, and the axis of the knob 1 is perpendicular to the first surface.

[0038] Furthermore, in some preferred embodiments of the present invention, the electronic tag 2 is an NFC patch; the NFC patch is attached to the side of the first device opposite to the knob 1, and the radio frequency card reader is an NFC card reader.

[0039] Specifically, the NFC patch can be attached to the side of the first device opposite to the knob 1 by adhesive or magnetic attraction. This first surface is the side of the first device opposite to the knob 1; for example, the first surface can be the platform surface of a cooktop, or the side wall of a range hood. Those skilled in the art will understand that the first surface can be horizontal, vertical, or inclined. The NFC patch only stores tag information and does not require an external power supply. An NFC reader reads the NFC patch to obtain the stored tag information.

[0040] Electronic tag 2 is affixed to the first surface of the first device. Electronic tag 2 stores tag information representing different operating states of the first device. The first surface of the first device typically indicates the corresponding operating state, and the corresponding electronic tag 2 is affixed to the corresponding position. For example, if the first device is a gas stove, the gas stove knob 1 is already marked with information such as on / off, various power levels, etc. The tag information includes, but is not limited to: on / off, low heat, medium heat, high heat, and stir-fry mode. The corresponding tag information can be printed on the surface of electronic tag 2, allowing the user to easily affix the electronic tag 2 to the corresponding markings on the gas stove itself according to the stored tag information. When the RFID reader rotates with knob 1, it will generally read the corresponding information. The first device receives the tag information of the nearby electronic tag 2 and sends the corresponding tag information to the second device via the communication module. The second device then determines the received tag information as the current operating status of the first device and adjusts its own operating status according to the preset linkage rules. For example, if the first device is a gas stove and the second device is a range hood, when the information of electronic tag 2 indicates that the gas stove is off, the range hood enters the off mode after obtaining the tag information. This mode can be to turn off the range hood directly or after a preset delay. If the tag information received by the range hood indicates that it is in the stir-fry mode, the range hood needs to be adjusted to the stir-fry mode to remove the large amount of oil fumes generated by stir-frying.

[0041] Furthermore, in some preferred embodiments of the present invention, the knob 1 is coupled to the first device via the valve stem 11; at least two electronic tags 2 are spaced apart around the valve stem 11 and at least partially surround the valve stem 11.

[0042] See also Figure 1 In this embodiment, multiple electronic tags 2 are provided, which not only enables the linkage of the opening and closing functions between the first and second devices, but also enables the linkage of different gear functions. In this embodiment, the multiple electronic tags 2 are small circular patches that are set at intervals around the valve stem 11 and partially surround it. This separate patch form of the electronic tags 2 has better compatibility and can adapt to various complex operating states of the first device, making it convenient for users to accurately attach the electronic tags 2 to the corresponding positions on the first surface based on the different tag information. As those skilled in the art will understand, in another embodiment of the present invention, the multiple electronic tags 2 can be arranged sequentially on the same annular sticker according to industry standards and based on different tag information, but they are still separate from each other, so as to facilitate users to attach the corresponding stickers around the valve stem 11 to the first surface at one time, thereby saving the user's workload in attaching the electronic tags 2.

[0043] Specifically, the structure of knob 1 is similar to that of existing stove knobs, with a mounting structure at the center of its bottom that mates with valve stem 11. This allows the old knobs on the stove to be removed from valve stem 11, and the knob 1 provided in this embodiment to be directly inserted onto valve stem 11. (Continue to see...) Figure 1 , Figure 1 The five electronic tags 2 shown are arranged around the valve stem 11. For the accuracy of reading the electronic tags 2, preferably, all electronic tags 2 are at the same distance from the valve stem 11.

[0044] Furthermore, in some preferred embodiments of the present invention, the operating state includes a first operating state and a second operating state; the first operating state is used to indicate that the first device is turned on, and the second operating state is used to indicate that the first device is turned off. Those skilled in the art will understand that the first operating state indicating on and the second operating state indicating off are the most basic operating states possessed by household appliances such as stoves, range hoods, dishwashers, steam ovens, and air conditioners. Therefore, the electronic tag 2 in this embodiment can at least achieve the linkage of the on / off functions between the first and second devices, and the corresponding electronic tag 2 can be compatible with different types of household appliances.

[0045] For details, please refer to [link / reference]. Figure 1 The tag information stored in the first electronic tag 21 is in the first operating state "on". After the radio frequency card reader reads the tag information in the first electronic tag 21, it sends the "on" tag information to the second device. The tag information stored in the second electronic tag 22 is in the second state "off". After the radio frequency card reader reads the tag information in the second electronic tag 22, it sends the "off" tag information to the second device.

[0046] In some preferred embodiments of the present invention, there are multiple electronic tags 2; the operating state also includes a third operating state; the third operating state is used to indicate the gear position of the first device.

[0047] Specifically, a third electronic tag 23 is usually also provided to indicate the operating level of the first device; see also Figure 1 The diagram shows three third electronic tags. In a gas stove, these tags, from top to bottom, indicate "high heat," "medium heat," and "low heat." When the RFID reader reads the tag information in the third electronic tag 23, it sends the corresponding tag information to the second device. In a water heater, the three third electronic tags 23 can represent different water temperatures.

[0048] Furthermore, the step of determining the appropriate power supply method based on the light intensity and remaining power includes: determining the power supply method for the RFID reader based on the light intensity and remaining power.

[0049] Specifically, the RFID reader acts as a load. In addition to supplying it with power according to the aforementioned power supply principles, the controller can also control the RFID reader to adjust the sampling frequency according to the current power supply situation. For example, when the voltage is low, the sampling frequency can be reduced to achieve energy saving.

[0050] Furthermore, in some preferred embodiments of the present invention, the load further includes: a communication module; the communication module is communicatively connected to a corresponding second device; the communication module is used to send the read tag information to the second device so that the second device can be informed of the operating status of the first device and respond accordingly.

[0051] Specifically, the communication module is located inside the knob 1. The communication module is connected to both the RFID card reader and a second device. The second device is an electrical appliance functionally related to the first device; for example, the first device could be a gas stove or an oven with fume extraction capabilities, and the second device could be a range hood. In some preferred embodiments of the invention, the communication module can be a Bluetooth module or a Wi-Fi module.

[0052] Furthermore, the step of determining the appropriate power supply method based on the light intensity and remaining power also includes: if the remaining power is less than a preset power value, reducing the transmission power of the communication module.

[0053] Specifically, also for energy-saving considerations, when the ambient light intensity is low and the power module's power is low (mainly reflected in the low supply voltage), the controller actively controls the communication module to enter energy-saving mode, reducing the data transmission frequency between it and the second device, and reducing the communication module's transmission power to a preset power value, reducing the redundancy of the transmission power, so that the second device can just receive the data sent by the communication module.

[0054] Furthermore, in some preferred embodiments of the present invention, the step of determining the power supply method for the RFID reader based on the light intensity and the remaining power includes: if the light intensity is greater than a preset intensity value, determining whether the RFID reader has a power demand; if the RFID reader has a power demand, supplying power to the RFID reader through a photovoltaic panel.

[0055] Furthermore, in some preferred embodiments of the present invention, the step of determining the corresponding power supply method based on the light intensity and the remaining power also includes: if the light intensity is greater than a preset intensity value, determining whether the communication module has a power demand; if the communication module has a power demand, supplying power to the communication module through the photovoltaic panel.

[0056] Specifically, the power supply strategies of the RFID reader and the communication module, which are typical loads in the knob 1 provided in this embodiment, are basically the same.

[0057] Before operation, a suitable light intensity threshold needs to be pre-set based on factors such as the specific application scenario, geographical location, seasonal changes, and the performance characteristics of the photovoltaic panels. This serves as an important basis for determining whether to activate photovoltaic power supply. This preset intensity value is not fixed but can be dynamically adjusted and optimized according to actual operating conditions to ensure that the power supply system always operates in optimal condition.

[0058] As the light sensor continuously collects ambient light intensity data, the controller compares this real-time data with preset intensity values. This comparison process is one of the core components of the entire power supply adjustment strategy, determining whether to proceed to the next step of load power demand assessment and power supply mode selection.

[0059] If the light intensity is greater than the preset value, it indicates that the current lighting conditions are sufficient and the photovoltaic panels have enough capacity to generate electricity. In this case, the photovoltaic power supply will not be activated immediately; instead, it is necessary to further determine whether the load has a demand for electricity.

[0060] To accurately determine the power demand of loads, load status information is obtained through multiple methods. On one hand, for known fixed loads, such as communication units, their current power consumption status is determined based on their preset work schedules and operating modes. On the other hand, for variable loads, such as information acquisition units, their power needs are determined by real-time monitoring of their operating status and energy consumption data. For example, the information acquisition unit only collects data on the flame level when the stove is turned on. Through comprehensive monitoring and analysis of various loads, it is possible to accurately determine whether there is an actual power demand. Only when it is confirmed that the load has a power demand will the next step of selecting and adjusting the power supply mode proceed.

[0061] When the sunlight intensity exceeds a preset value and the load has a power demand, the photovoltaic power supply mode can be activated. At this time, the photovoltaic panels, as the main power generation device, begin to convert solar energy into electrical energy, and convert the generated direct current into alternating current suitable for the load through power conversion equipment such as inverters.

[0062] During the power supply process, priority is given to meeting the power demand of the load. Specifically, a portion of the electrical energy is directly delivered to the load to ensure its normal operation.

[0063] Meanwhile, considering the uncertainty of lighting conditions and potential energy fluctuations, to avoid wasting excess electricity generated by photovoltaic panels, another portion of the electricity will be transferred to batteries for storage. Batteries, as energy storage devices, can store excess electrical energy in the form of chemical energy. This not only improves energy utilization efficiency but also enhances stability and reliability under complex operating conditions.

[0064] Throughout the power supply process, the controller monitors key parameters in real time, such as the photovoltaic panel's power generation, the actual power consumption of the load, and the battery's charging status. By analyzing and adjusting these parameters in real time, the stability and safety of the photovoltaic power supply are ensured, preventing damage to the equipment due to overvoltage, overcurrent, or other issues. Furthermore, when changes in sunlight intensity or load power demand occur, the controller can promptly adjust the power supply strategy, achieving seamless switching between power supply modes to maintain the efficient operation of the power supply system at all times.

[0065] In summary, this power supply adjustment strategy based on light intensity and battery power status, through real-time monitoring of light intensity, accurate judgment of load power demand, and reasonable selection and adjustment of power supply modes, achieves the effective utilization of renewable energy and intelligent management of power supply, and has significant practical application value and broad development prospects.

[0066] Furthermore, in some preferred embodiments of the present invention, after determining whether the RFID reader has a power demand if the light intensity is greater than a preset intensity value, the method further includes: if the RFID reader does not have a power demand, charging the power module through the photovoltaic panel.

[0067] Furthermore, in some preferred embodiments of the present invention, the step of determining the corresponding power supply method based on the light intensity and the remaining power also includes: if the communication module has no power demand, charging the power module through the photovoltaic panel.

[0068] Specifically, if the light intensity exceeds the preset value but the load has no power demand, an alternative power supply method will be adopted—powering the battery through photovoltaic panels. In this case, all the electricity generated by the photovoltaic panels will be used to charge the battery, storing any excess energy.

[0069] During charging, the charging current and voltage are strictly controlled to prevent overcharging. The controller adjusts the charging parameters in real time based on factors such as the battery's current state of charge, charging characteristics, and the photovoltaic panel's power generation, ensuring that the battery can complete the charging process safely and efficiently.

[0070] Once the battery reaches a certain charge level, charging automatically stops to prevent overcharging from affecting battery life. At this point, excess electrical energy generated by the photovoltaic panels may be disposed of in other ways, such as through a specific offloading circuit.

[0071] Furthermore, in some preferred embodiments of the present invention, the method further includes: if the light intensity is not greater than a preset intensity threshold, determining whether the remaining power is greater than a preset power value; if the remaining power is greater than the preset power value, supplying power to the radio frequency card reader through the photovoltaic panel and the power module.

[0072] Specifically, if the light intensity is not greater than the preset intensity threshold, it indicates that the current lighting conditions are poor, and the electrical energy generated by the photovoltaic panels is limited or unable to meet the load's needs. In this case, it is necessary to further determine whether the battery's capacity is greater than the preset capacity value.

[0073] When the battery's charge exceeds a preset value, it indicates that the battery has sufficient stored energy to supply the load. In this case, power will be supplied to the load through both the photovoltaic panel and the battery. The photovoltaic panel will generate some electricity within its capacity, while the battery will release its stored energy, together providing stable power support to the load.

[0074] During power supply, the power output of the photovoltaic panels and the discharge characteristics of the batteries are rationally allocated to ensure the stability and efficiency of the power supply. Simultaneously, close monitoring of battery charge levels is maintained; when the battery charge drops to a certain level, the power supply ratio of the photovoltaic panels is gradually increased to extend the battery's lifespan.

[0075] The controller monitors various parameters throughout the power supply process in real time, including the power generation of the photovoltaic panels, the discharge current and voltage of the batteries, and the actual power consumption of the load. Through precise control and adjustment of these parameters, the power supply system can achieve a smooth transition between photovoltaic power supply, battery power supply, and power supply in combination with the two, maximizing the satisfaction of the load's power demand.

[0076] This invention provides a power supply control method for a knob assembly. The knob assembly includes a knob, a photovoltaic panel assembly, a load, and a rechargeable power module. The method includes: acquiring the light intensity of the environment where the knob is located and the remaining power of the power module; determining the appropriate power supply mode based on the light intensity and the remaining power; by setting a photovoltaic panel and a built-in battery in the knob, and fully considering the light intensity and the power of the built-in battery, different power supply modes are formulated to achieve refined power management, stable power supply, reduced user intervention, and improved user experience.

[0077] Example 2 Based on the above description, see Figure 3 The flowchart shown is another power supply control method for a knob assembly provided in an embodiment of the present invention. The method includes: Step S202, Begin.

[0078] Step S204: Determine if the light intensity is greater than a preset value. Based on the light intensity, determine if photovoltaic panel power is needed. If yes, proceed to step S206. If no, proceed to step S212.

[0079] Step S206: Determine if the load has a power demand. If the load is operating, it can be directly powered by the photovoltaic panel, and the additional power can charge the battery; if the load is off, the photovoltaic panel can charge the battery. If yes, proceed to steps S208 and S210; if no, proceed to step S210.

[0080] Step S208: Power is supplied to the load through the photovoltaic panel.

[0081] Step S210: Power is supplied to the battery through the photovoltaic panel.

[0082] Step S212: Determine if the battery charge is greater than a preset value. When the light intensity is low, power is primarily supplied by the battery. If yes, proceed to step S214; otherwise, proceed to step S216.

[0083] Step S214: Power is supplied to the load through the photovoltaic panel and battery.

[0084] Step S216: Reduce the operating frequency of the communication unit. Reduce the information transmission frequency of the communication unit.

[0085] Step S218, End. The knob is now in a stable state, and the controller continuously monitors the light intensity and battery level, adjusting the power supply strategy in real time.

[0086] Example 3 Based on the above embodiments, the present invention provides a knob assembly for executing the power supply control method of the knob assembly provided in the above embodiments.

[0087] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working process of the power supply circuit control device described above can be referred to the corresponding process in the aforementioned embodiment of the power supply control method for the knob assembly, and will not be repeated here.

[0088] Example 4 Based on the above embodiments, the present invention provides a home appliance, which is provided with the knob assembly provided in the above embodiments.

[0089] Specifically, home appliances can be stoves, range hoods, dishwashers, steam ovens, air conditioners, etc. with knobs. Replacing the original knobs with the knob assembly in the above embodiments can realize the linkage between devices.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply control method for a knob assembly, characterized in that, The knob assembly includes a knob, the knob comprising a photovoltaic panel assembly, a load, and a rechargeable power module; the method includes: The light intensity of the environment where the knob is located and the remaining power of the power module are obtained; The appropriate power supply method is determined based on the light intensity and the remaining power.

2. The power supply control method for the knob assembly according to claim 1, characterized in that, The knob assembly further includes: at least two electronic tags; the load includes: an RFID reader; the knob is used to couple with a corresponding first device, and the electronic tags are disposed on the side of the first device opposite to the knob; the electronic tags respectively store tag information corresponding to different operating states of the first device; the RFID reader is used to read the tag information in the electronic tags at the corresponding positions as the knob is rotated; the step of determining the corresponding power supply mode based on the light intensity and the remaining power includes: The power supply method for the RFID card reader is determined based on the light intensity and the remaining power.

3. The power supply control method for the knob assembly according to claim 2, characterized in that, The step of determining the power supply method for the RFID reader based on the light intensity and the remaining power includes: If the light intensity is greater than a preset intensity value, determine whether the RFID reader has a power requirement; If the RFID reader has a power requirement, power is supplied to the RFID reader through the photovoltaic panel.

4. The power supply control method for the knob assembly according to claim 3, characterized in that, After determining whether the RFID reader has a power requirement if the light intensity is greater than a preset intensity value, the method further includes: If the RFID reader does not require power, it charges the power module through the photovoltaic panel.

5. The power supply control method for the knob assembly according to claim 2, characterized in that, The method further includes: If the light intensity is not greater than a preset intensity threshold, determine whether the remaining power is greater than a preset power value; If the remaining power is greater than the preset power value, the photovoltaic panel and the power module will jointly supply power to the radio frequency card reader.

6. The power supply control method for the knob assembly according to claim 2, characterized in that, The load further includes: a communication module; the communication module is communicatively connected to a corresponding second device; the communication module is used to send the read tag information to the second device so that the second device is aware of the operating status of the first device and responds; the step of determining the corresponding power supply method based on the light intensity and the remaining power also includes: If the remaining battery power is less than a preset value, the transmission power of the communication module is reduced.

7. The power supply control method for the knob assembly according to claim 6, characterized in that, The step of determining the appropriate power supply method based on the light intensity and the remaining power also includes: If the light intensity is greater than a preset intensity value, determine whether the communication module has a power requirement; If the communication module requires power, power is supplied to the communication module through the photovoltaic panel.

8. The power supply control method for the knob assembly according to claim 7, characterized in that, The step of determining the appropriate power supply method based on the light intensity and the remaining power also includes: If the communication module does not require power, the power module is charged through the photovoltaic panel.

9. A knob assembly, characterized in that, A power supply control method for performing the knob assembly as described in any one of claims 1 to 8.

10. A household appliance, characterized in that, The home appliance is provided with the knob assembly as described in claim 9.

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