Gas water heater, wind resistance control method and device, electronic equipment and storage medium

Abstract

The embodiment of the present application relates to a kind of gas water heater and wind resistance control method, device, electronic equipment and storage medium, specifically related to the field of intelligent household appliances, including micro control unit, fan, first current control unit and current adjustment unit;Micro control unit is used to determine the set current of fan according to the current demand heat load, adjusts the signal of first output according to set current, and FG port connected with fan is used to receive the speed information of fan, adjusts the signal of second output according to set current and speed signal;First current control unit is used to generate target current of control fan according to the signal of first output of micro control unit, and feedback current signal is output to current adjustment unit;Current adjustment unit is used to compare feedback current signal and the signal of second output of micro control unit to generate fan adjustment signal to adjust the current of fan.The present application can improve response speed and enhance security.

Description

Technical Field

[0001] This invention relates to the field of water heater technology, specifically to a gas water heater and a wind-resistant control method, device, electronic equipment, and storage medium. Background Technology

[0002] Gas water heaters heat water quickly, providing instant hot water without the long heating time of traditional storage water heaters. Essentially, hot water is available the moment you turn on the tap, making them incredibly convenient and fast. They are also compact and space-saving, and because the temperature is pre-set, the water temperature is stable, with no restrictions on the amount of hot water available.

[0003] Because gas water heaters are flow-through type, the air pressure is easily affected during use. The most important point is that there may be certain safety hazards. If a gas water heater does not have wind-resistant technology, it is prone to a series of problems such as deflagration, flameout, inability to ignite, poor flue gas quality, obvious combustion noise, and inability to maintain a constant water temperature when encountering strong winds (e.g., exceeding 300 Pa) during normal use.

[0004] To address the aforementioned issues, a gas water heater employs a constant speed judgment circuit current control scheme. However, during combustion control, the target speed of the fan changes in real time due to load variations. Consequently, the circuit current lacks reference value for air replenishment judgment, easily leading to a series of problems such as the need for air replenishment after stabilization and untimely air replenishment. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a method, device, electronic device, and storage medium for controlling the wind resistance of a gas water heater, so as to improve the sensitivity of wind pressure resistance.

[0006] Other features and advantages of the embodiments of the present invention will become apparent from the following detailed description, or may be learned in part by practice of the embodiments of the present invention.

[0007] In a first aspect of this disclosure, an embodiment of the present invention provides a gas water heater, including a microcontroller unit, a fan, a first current control unit, and a current adjustment unit;

[0008] The microcontroller unit is used to determine the set current of the fan according to the current required heat load, adjust the signal of the first output terminal according to the set current, and connect the FG port of the fan to receive the speed information of the fan, and adjust the signal of the second output terminal according to the set current and the speed signal.

[0009] The first current control unit is connected to the first output terminal of the microcontroller unit and is used to generate a target current for controlling the fan based on the signal from the first output terminal of the microcontroller unit, and to output a feedback current signal to the current adjustment unit.

[0010] The current adjustment unit is connected to the second output terminal of the microcontroller unit and is used to compare the feedback current signal with the signal of the second output terminal of the microcontroller unit to generate a fan adjustment signal to adjust the current of the fan.

[0011] In one embodiment, the current adjustment unit includes a triangular wave generating circuit and a comparator circuit;

[0012] The input terminal of the triangular wave generating circuit is connected to the second output terminal of the microcontroller unit, the output terminal of the triangular wave generating circuit is connected to the second input terminal of the comparator circuit, the first input terminal of the comparator circuit is used to receive the feedback current signal output by the first current control unit, and the output terminal of the comparator circuit is connected to the fan.

[0013] The triangular wave generating circuit is used to generate a triangular wave signal based on the signal from the second output terminal of the microcontroller unit.

[0014] The comparator circuit is used to compare the triangular wave signal with the feedback current signal, and generate the fan adjustment signal based on the comparison result to adjust the current of the fan.

[0015] In one embodiment, the first current control unit includes a DA conversion circuit and an operational amplifier circuit;

[0016] The input terminal of the DA conversion circuit is connected to the first output terminal of the microcontroller unit, the output terminal of the DA conversion circuit is connected to the input terminal of the operational amplifier circuit, and the output terminal of the operational amplifier circuit is used to output the feedback current signal.

[0017] The DA conversion circuit is used to convert the digital signal at the first output terminal of the microcontroller into an analog signal, and output the analog signal to the operational amplifier circuit;

[0018] The operational amplifier circuit is used to amplify the received analog signal and then input it to the comparator circuit.

[0019] In one embodiment, the microcontroller unit is further configured to determine whether the fan has malfunctioned based on the set current and the speed signal, and if so, to perform alarm control.

[0020] In one embodiment, the microcontroller unit is an MCU controller.

[0021] In one embodiment, the gas water heater is a top-extraction water heater or a bottom-drum water heater.

[0022] In a second aspect of this disclosure, embodiments of the present invention provide a method for wind resistance control of a gas water heater, the method being based on a gas water heater as described in any of the first aspects, executed by the microcontroller unit, the method comprising:

[0023] The set current of the fan is determined according to the current heat load demand, and the signal of the first output terminal is adjusted according to the set current, so that the first current control unit generates the target current for controlling the fan according to the signal of the first output terminal, and outputs a feedback current signal to the current adjustment unit.

[0024] The fan speed information is received through the FG port of the fan. The signal of the second output terminal is adjusted according to the set current and the speed signal, so that the current adjustment unit compares the signal of the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the current of the fan.

[0025] In a third aspect of this disclosure, embodiments of the present invention also provide a gas water heater wind resistance control device, the device being based on a gas water heater as described in any of the first aspects, configured in the microcontroller unit, characterized in that the device comprises:

[0026] The first control module is used to determine the set current of the fan according to the current heat load demand, adjust the signal of the first output terminal according to the set current, so that the first current control unit generates the target current for controlling the fan according to the signal of the first output terminal, and outputs a feedback current signal to the current adjustment unit.

[0027] The second control module is used to receive the fan speed information through the FG port of the fan, and adjust the signal of the second output terminal according to the set current and the speed signal, so that the current adjustment unit compares the signal of the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the current of the fan.

[0028] In a fourth aspect of this disclosure, an electronic device is provided. The electronic device includes: a processor; and a memory for storing executable instructions, which, when executed by the processor, cause the electronic device to perform the method of the first aspect.

[0029] In a fifth aspect of this disclosure, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the method of the first aspect.

[0030] The beneficial technical effects of the technical solution proposed in the embodiments of the present invention are as follows:

[0031] In this embodiment of the invention, the MCU controller receives the fan speed information from the FG port of the fan, and adjusts the signal of the second output terminal according to the set current and the speed signal, so that the current adjustment unit compares the signal of the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the current of the fan, which can improve the response speed and enhance the safety of the gas water heater. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of the present invention and these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a gas water heater according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the relationship between air volume and air pressure corresponding to the existing constant speed control scheme for gas water heaters;

[0035] Figure 3 This is a schematic diagram of the relationship between air volume and air pressure corresponding to the existing constant current control scheme for gas water heaters;

[0036] Figure 4 This is a schematic diagram of the relationship between air volume and air pressure for the gas water heater corresponding to the scheme in this embodiment;

[0037] Figure 5 This is a structural schematic diagram of another gas water heater provided according to an embodiment of the present invention;

[0038] Figure 6 This is a flowchart illustrating a wind resistance control method for a gas water heater according to an embodiment of the present invention.

[0039] Figure 7 This is a schematic diagram of the structure of a gas water heater wind resistance control device according to an embodiment of the present invention;

[0040] Figure 8 A schematic diagram of an electronic device suitable for implementing embodiments of the present invention is shown. Detailed Implementation

[0041] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the embodiments of the present invention.

[0042] It should be noted that the terms "system" and "network" are often used interchangeably in this invention. The term "and / or" mentioned in this invention refers to any and all combinations including one or more of the related listed items. The terms "first," "second," etc., in the specification, claims, and drawings of this disclosure are used to distinguish different objects, not to limit a specific order.

[0043] It should also be noted that the various embodiments described below in this invention can be executed individually or in combination with each other, and this invention does not impose any specific limitations on this.

[0044] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0045] The technical solutions of the embodiments of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0046] Figure 1 This is a schematic diagram of a gas water heater according to an embodiment of the present invention. This embodiment is applicable to situations where the gas water heater can resist ambient wind pressure, such as... Figure 1 As shown, the gas water heater described in this embodiment includes a microcontroller unit 120, a fan 140, a first current control unit 110, and a current adjustment unit 130.

[0047] like Figure 1 As shown, the connection relationships of the components of the gas water heater in this embodiment are as follows: the first output terminal 1 of the microcontroller 120 is connected to the input terminal 1 of the first current control unit 110; the second output terminal 2 of the microcontroller 120 is connected to the first input terminal 1 of the current adjustment unit 130; and the input terminal 3 of the microcontroller 120 is connected to the FG terminal of the fan 140. The first output terminal 2 of the first current control unit 110 is connected to the fan 140; the second output terminal 3 of the first current control unit 110 is connected to the second input terminal 2 of the current adjustment unit 130; and the second output terminal 3 of the current adjustment unit 130 is connected to the fan 140.

[0048] The microcontroller unit 120 is used to determine the set current of the fan 140 according to the current required heat load, adjust the signal of the first output terminal 1 according to the set current, and connect the FG port of the fan 140 to receive the speed information of the fan 140, and adjust the signal of the second output terminal 2 according to the set current and the speed signal.

[0049] The first current control unit 110 is connected to the first output terminal 1 of the microcontroller unit 120, and is used to generate a target current for controlling the fan according to the signal of the first output terminal 1 of the microcontroller unit 120, and to output a feedback current signal to the current adjustment unit 130.

[0050] The current adjustment unit 130 is connected to the second output terminal of the microcontroller unit 120 and is used to compare the feedback current signal with the signal of the second output terminal of the microcontroller unit 120 to generate a fan adjustment signal to adjust the current of the fan 140.

[0051] Figure 2 This is a schematic diagram of the relationship between air volume and air pressure corresponding to the existing constant speed control scheme for gas water heaters. It is the relationship curve between air volume and air pressure obtained by fitting experimental data after conducting multiple experiments on gas water heaters using the constant speed control scheme under different external air pressures.

[0052] Figure 3 This is a schematic diagram of the relationship between air volume and air pressure corresponding to the existing constant current control scheme for gas water heaters. It is also the relationship curve between air volume and air pressure obtained by fitting experimental data after conducting multiple experiments on existing gas water heaters using the constant current control scheme under different external air pressures.

[0053] Figure 4 This is a schematic diagram of the relationship between air volume and air pressure for the gas water heater corresponding to the scheme in this embodiment. It is also the relationship curve between air volume and air pressure obtained by fitting experimental data after conducting multiple experiments on the gas water heater using the scheme in this embodiment under different external air pressures.

[0054] right Figure 2 , 3 Compared with 4, the technical solution of this embodiment has the least impact of external wind pressure on the air volume and the strongest wind resistance of the gas water heater compared with the existing constant speed control solution and the existing constant current control solution of the gas water heater.

[0055] Figure 5This is a schematic diagram of the structure of another gas water heater according to an embodiment of the present invention. According to one or more embodiments of the present disclosure, the first current control unit 110 may include a DA conversion circuit and an operational amplifier circuit.

[0056] The input terminal of the DA conversion circuit is connected to the first output terminal of the microcontroller unit 120, and the output terminal of the DA conversion circuit is connected to the input terminal of the operational amplifier circuit. The output terminal of the operational amplifier circuit is used to output the feedback current signal.

[0057] The DA conversion circuit is used to convert the digital signal at the first output terminal of the microcontroller unit 120 into an analog signal, and output the analog signal to the operational amplifier circuit.

[0058] The operational amplifier circuit is used to amplify the received analog signal and then input it to the comparator circuit.

[0059] According to one or more embodiments of this disclosure, the microcontroller unit 120 is further configured to determine whether the fan 140 has malfunctioned based on the set current and the speed signal, and if so, to perform alarm control.

[0060] According to one or more embodiments of this disclosure, the microcontroller unit 120 is an MCU controller.

[0061] According to one or more embodiments of this disclosure, the gas water heater is a top-extraction water heater or a bottom-drum water heater.

[0062] like Figure 5 As shown, this embodiment uses constant current control and fan speed acquisition in the fan hardware. The MCU controller outputs a target current for controlling the fan current through the first output terminal (fan current PWM1) and the DA conversion circuit. A comparator circuit compares the difference between the feedback current and the set current to amplify and generate the control voltage value. The voltage value generated by the triangular wave generator circuit and the amplifier circuit is compared to generate fan adjustment information (PWM signal) for controlling the fan.

[0063] The MCU controller calculates and outputs the current current and fan airflow based on the current demand for heat load. The fan control section generates the actual control current based on the current speed. The MCU controller reads the current speed in real time and determines the real-time current output based on the relationship between the current airflow, current speed, and the current circuit. The first current control unit controls the fan. When encountering changes in external wind pressure or blockage, the PQ curve (airflow vs. wind pressure curve) has a faster response speed than the PQ curve of a gas water heater using a constant speed scheme. The speed loop determines whether the current speed and current relationship achieves the target airflow, improving airflow accuracy.

[0064] When the required airflow changes, the target current is controlled first. The calculated change in actual rotational speed is then adjusted based on the difference in actual rotational speed. The current current value is then checked against the calculated actual rotational speed value to determine whether supplementary airflow is in effect. If the actual rotational speed is greater than the calculated rotational speed, supplementary airflow should be initiated.

[0065] Based on the fan characteristics, including maximum current, maximum speed, and maximum speed supported under the current load, if the actual speed under the current load exceeds the maximum speed during make-up air control, it can be determined that the combustion system is insufficient to meet the air volume requirements for combustion under the current external air pressure. In this case, load reduction is necessary. This is achieved by gradually reducing the actual output load over a certain period, modifying the target speed, and decreasing the target air volume and valve opening. If the load reduction still does not meet the requirements after reaching a certain level, a fault report should be issued.

[0066] During the production of the complete blower unit, a learning process is performed on the blower. Standard flue pipes are installed in the workshop to ensure no air pressure or flue blockage. The blower enters learning mode and performs constant speed control according to the set wind speed in the parameter table, recording the blower current corresponding to this wind speed. Six combustion points are learned for each combustion section. The learned values ​​are saved, and during normal blower operation, supplementary air is provided based on the relationship between the current wind speed and the control current.

[0067] After the air is supplied to the sealed combustion chamber, the pressure change after the nozzle of the gas valve is controlled in real time. This ensures the flow of fuel and thus keeps the air-fuel ratio at a reasonable value.

[0068] The technical solutions of the embodiments of the present invention will be further described below with reference to the accompanying drawings and specific implementation methods.

[0069] Figure 6 This diagram illustrates a flow chart of a wind-resistant control method for a gas water heater according to an embodiment of the present invention. This embodiment is applicable to situations where the microcontroller unit in a gas water heater described in the foregoing embodiments controls the system to resist ambient wind pressure. This method can be executed by a wind-resistant control device configured in the microcontroller unit of the gas water heater, such as... Figure 6 As shown, the wind resistance control method for gas water heaters described in this embodiment includes:

[0070] In step S610, the set current of the fan is determined according to the current required heat load, and the signal of the first output terminal is adjusted according to the set current so that the first current control unit generates the target current for controlling the fan according to the signal of the first output terminal, and outputs a feedback current signal to the current adjustment unit.

[0071] In step S620, the fan speed information is received through the FG port of the fan, and the signal of the second output terminal is adjusted according to the set current and the speed signal, so that the current adjustment unit compares the signal of the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the current of the fan.

[0072] According to one or more embodiments of this disclosure, the current adjustment unit includes a triangular wave generating circuit and a comparator circuit;

[0073] The input terminal of the triangular wave generating circuit is connected to the second output terminal of the microcontroller unit, the output terminal of the triangular wave generating circuit is connected to the second input terminal of the comparator circuit, the first input terminal of the comparator circuit is used to receive the feedback current signal output by the first current control unit, and the output terminal of the comparator circuit is connected to the fan.

[0074] The triangular wave generating circuit is used to generate a triangular wave signal based on the signal from the second output terminal of the microcontroller unit.

[0075] The comparator circuit is used to compare the triangular wave signal with the feedback current signal, and generate the fan adjustment signal based on the comparison result to adjust the current of the fan.

[0076] According to one or more embodiments of this disclosure, the first current control unit includes a DA conversion circuit and an operational amplifier circuit;

[0077] The input terminal of the DA conversion circuit is connected to the first output terminal of the microcontroller unit, the output terminal of the DA conversion circuit is connected to the input terminal of the operational amplifier circuit, and the output terminal of the operational amplifier circuit is used to output the feedback current signal.

[0078] The DA conversion circuit is used to convert the digital signal at the first output terminal of the microcontroller into an analog signal, and output the analog signal to the operational amplifier circuit;

[0079] The operational amplifier circuit is used to amplify the received analog signal and then input it to the comparator circuit.

[0080] According to one or more embodiments of this disclosure, the microcontroller unit is further configured to determine whether the fan has malfunctioned based on the set current and the speed signal, and if so, to perform alarm control.

[0081] According to one or more embodiments of this disclosure, the microcontroller unit is an MCU controller.

[0082] According to one or more embodiments of this disclosure, the gas water heater is a top-extraction water heater or a bottom-drum water heater.

[0083] The technical solution of this embodiment can sensitively resist changes in ambient wind pressure, improve response speed, and increase the safety of gas water heaters.

[0084] As an implementation of the methods shown in the above figures, this application provides an embodiment of a wind-resistant control device for a gas water heater. Figure 7 This diagram illustrates the structure of a wind-resistant control device for a gas water heater provided in this embodiment. The embodiment of this device is similar to... Figure 6 Corresponding to the illustrated method embodiments, this device can be specifically applied to various electronic devices. For example... Figure 7 As shown, the gas water heater wind resistance control device described in this embodiment includes a first control module 710 and a second control module 720.

[0085] The first control module 710 is configured to determine the set current of the fan according to the current required heat load, adjust the signal of the first output terminal according to the set current, so that the first current control unit generates a target current for controlling the fan according to the signal of the first output terminal, and outputs a feedback current signal to the current adjustment unit.

[0086] The second control module 720 is configured to receive the fan speed information through the fan's FG port, and adjust the signal of the second output terminal according to the set current and the speed signal, so that the current adjustment unit compares the signal of the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the current of the fan.

[0087] According to one or more embodiments of this disclosure, the current adjustment unit includes a triangular wave generating circuit and a comparator circuit;

[0088] The input terminal of the triangular wave generating circuit is connected to the second output terminal of the microcontroller unit, the output terminal of the triangular wave generating circuit is connected to the second input terminal of the comparator circuit, the first input terminal of the comparator circuit is used to receive the feedback current signal output by the first current control unit, and the output terminal of the comparator circuit is connected to the fan.

[0089] The triangular wave generating circuit is used to generate a triangular wave signal based on the signal from the second output terminal of the microcontroller unit.

[0090] The comparator circuit is used to compare the triangular wave signal with the feedback current signal, and generate the fan adjustment signal based on the comparison result to adjust the current of the fan.

[0091] According to one or more embodiments of this disclosure, the first current control unit includes a DA conversion circuit and an operational amplifier circuit;

[0092] The input terminal of the DA conversion circuit is connected to the first output terminal of the microcontroller unit, the output terminal of the DA conversion circuit is connected to the input terminal of the operational amplifier circuit, and the output terminal of the operational amplifier circuit is used to output the feedback current signal.

[0093] The DA conversion circuit is used to convert the digital signal at the first output terminal of the microcontroller into an analog signal, and output the analog signal to the operational amplifier circuit;

[0094] The operational amplifier circuit is used to amplify the received analog signal and then input it to the comparator circuit.

[0095] According to one or more embodiments of this disclosure, the microcontroller unit is further configured to determine whether the fan has malfunctioned based on the set current and the speed signal, and if so, to perform alarm control.

[0096] According to one or more embodiments of this disclosure, the microcontroller unit is an MCU controller.

[0097] According to one or more embodiments of this disclosure, the gas water heater is a top-extraction water heater or a bottom-drum water heater.

[0098] The gas water heater wind resistance control device provided in this embodiment can execute the gas water heater wind resistance control method provided in the method embodiment of this disclosure, and has the corresponding functional modules and beneficial effects of executing the method.

[0099] The following is for reference. Figure 8 This diagram illustrates a structural schematic of an electronic device 800 suitable for implementing embodiments of the present invention. The terminal devices described in these embodiments are, for example, mobile devices, computers, or in-vehicle devices built into floating cars, or any combination thereof. In some embodiments, mobile devices may include, for example, mobile phones, smart home devices, wearable devices, smart mobile devices, virtual reality devices, or any combination thereof. Figure 8 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments of the present invention.

[0100] like Figure 8As shown, the electronic device 800 may include a processing device (e.g., a central processing unit, a graphics processor, etc.) 801, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 802 or a program loaded from a storage device 808 into a random access memory (RAM) 803. The RAM 803 also stores various programs and data required for the operation of the electronic device 800. The processing device 801, ROM 802, and RAM 803 are interconnected via a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.

[0101] Typically, the following devices can be connected to I / O interface 805: input devices 806 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 807 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 808 including, for example, magnetic tapes, hard disks, etc.; and communication devices 809. Communication device 809 allows electronic device 800 to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 8 An electronic device 800 with various devices is shown; however, it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed alternatively.

[0102] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device 809, or installed from a storage device 808, or installed from a ROM 802. When the computer program is executed by the processing device 801, it performs the functions defined in the methods of the embodiments of the present invention.

[0103] It should be noted that the computer-readable medium described in the embodiments of the present invention may be a computer-readable signal medium, a computer-readable storage medium, or any combination thereof. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In the embodiments of the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the embodiments of the present invention, a computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, wherein computer-readable program code is carried. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium can be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to: wires, optical fibers, RF (radio frequency), etc., or any suitable combination thereof.

[0104] The aforementioned computer-readable medium may be included in the aforementioned electronic device; or it may exist independently and not assembled into the electronic device.

[0105] The aforementioned computer-readable medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: determine a set current for the fan based on the current required heat load; adjust the signal at a first output terminal based on the set current, so that the first current control unit generates a target current for controlling the fan based on the signal at the first output terminal; and output a feedback current signal to the current adjustment unit; receive the fan speed information through the fan's FG port; and adjust the signal at a second output terminal based on the set current and the speed signal, so that the current adjustment unit compares the signal at the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the fan current.

[0106] Computer program code for performing the operations of embodiments of the present invention can be written in one or more programming languages ​​or a combination thereof. These programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—and conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0107] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0108] The units described in the embodiments of the present invention can be implemented in software or in hardware. The name of a unit does not necessarily limit the unit itself; for example, the first acquisition unit can also be described as "a unit that acquires at least two Internet Protocol addresses".

[0109] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in the embodiments of the present invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of the present invention.

Claims

1. A gas water heater, characterized in that, It includes a microcontroller unit, a fan, a first current control unit, and a current adjustment unit; The microcontroller unit is used to determine the set current of the fan according to the current required heat load, adjust the signal of the first output terminal according to the set current, and connect to the FG port of the fan to receive the fan speed information, and adjust the signal of the second output terminal according to the set current and speed signal; wherein, the signal of the second output terminal refers to the real-time current that should be output. The first current control unit is connected to the first output terminal of the microcontroller unit and is used to generate a target current for controlling the fan based on the signal from the first output terminal of the microcontroller unit, and to output a feedback current signal to the current adjustment unit. The current adjustment unit is connected to the second output terminal of the microcontroller unit and is used to compare the feedback current signal with the signal of the second output terminal of the microcontroller unit to generate a fan adjustment signal to adjust the wind speed of the fan.

2. The gas water heater according to claim 1, characterized in that, The current adjustment unit includes a triangular wave generator circuit and a comparator circuit; The input terminal of the triangular wave generating circuit is connected to the second output terminal of the microcontroller unit, the output terminal of the triangular wave generating circuit is connected to the second input terminal of the comparator circuit, the first input terminal of the comparator circuit is used to receive the feedback current signal output by the first current control unit, and the output terminal of the comparator circuit is connected to the fan. The triangular wave generating circuit is used to generate a triangular wave signal based on the signal from the second output terminal of the microcontroller unit. The comparator circuit is used to compare the triangular wave signal with the feedback current signal, and generate the fan adjustment signal based on the comparison result to adjust the current of the fan.

3. The gas water heater according to claim 2, characterized in that, The first current control unit includes a DA conversion circuit and an operational amplifier circuit; The input terminal of the DA conversion circuit is connected to the first output terminal of the microcontroller unit, the output terminal of the DA conversion circuit is connected to the input terminal of the operational amplifier circuit, and the output terminal of the operational amplifier circuit is used to output the feedback current signal. The DA conversion circuit is used to convert the digital signal at the first output terminal of the microcontroller into an analog signal, and output the analog signal to the operational amplifier circuit; The operational amplifier circuit is used to amplify the received analog signal and then input it to the comparator circuit.

4. The gas water heater according to claim 1, characterized in that, The microcontroller unit is also used to determine whether the fan has malfunctioned based on the set current and the speed signal, and if so, to perform alarm control.

5. The gas water heater according to claim 1, characterized in that, The microcontroller unit is an MCU controller.

6. The gas water heater according to claim 1, characterized in that, The gas water heater is either a top-extraction type or a bottom-drum type.

7. A method for controlling wind resistance in a gas water heater, characterized in that, The method is based on a gas water heater as described in any one of claims 1-6, and is executed by the microcontroller unit, characterized in that the method comprises: The set current of the fan is determined according to the current heat load demand, and the signal of the first output terminal is adjusted according to the set current, so that the first current control unit generates the target current for controlling the fan according to the signal of the first output terminal, and outputs a feedback current signal to the current adjustment unit. The fan speed information is received through the FG port of the fan. The signal of the second output terminal is adjusted according to the set current and the speed signal, so that the current adjustment unit compares the signal of the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the current of the fan; wherein, the signal of the second output terminal refers to the real-time current that should be output.

8. A wind-resistant control device for a gas water heater, characterized in that, The device is based on a gas water heater as described in any one of claims 1-6, and is configured in the microcontroller unit, characterized in that the device comprises: The first control module is used to determine the set current of the fan according to the current heat load demand, adjust the signal of the first output terminal according to the set current, so that the first current control unit generates the target current for controlling the fan according to the signal of the first output terminal, and outputs a feedback current signal to the current adjustment unit. The second control module is used to receive the fan speed information through the fan's FG port, and adjust the signal of the second output terminal according to the set current and the speed signal, so that the current adjustment unit compares the signal of the second output terminal with the feedback current signal to generate a fan adjustment signal to adjust the current of the fan; wherein, the signal of the second output terminal refers to the real-time current that should be output.

9. An electronic device, characterized in that, include: One or more processors; as well as A memory for storing executable instructions, which, when executed by the one or more processors, cause the electronic device to perform the method as described in claim 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method as described in claim 7.

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