Low-power preheating control method, water heater and storage medium

Abstract

The application relates to a low-power preheating control method, a water heater and a storage medium. The method comprises the following steps: through an instruction received by a control device or the water heater, a target water device can be determined, wherein the target water device is a water device to be used with hot water; the water heater is controlled to start preheating and run a water pump, so that heated water flows through a wake-up device corresponding to the target water device into a cold water pipe of the target water device; the wake-up device can detect a current temperature value of the water in real time and transmit the current temperature value to the water heater; and if the current temperature value is greater than a preset value, the water heater is controlled to stop preheating and the water pump is controlled to stop running. The application can ensure that the cold water pipe and the hot water pipe do not mix water after preheating is completed, and improve user experience.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water heaters, and in particular to a low-power preheating control method, a water heater and a storage medium. BACKGROUND

[0002] At present, the installation of a cold water gas water heater mainly solves the problem of no pre-buried return water pipe through a two-pipe cold water solution. After installing the water heater using the two-pipe cold water solution, if water body preheating needs to be achieved, the water bodies in the hot water pipe and the cold water pipe will be heated, so that after the water body is preheated through the water heater, the cold water pipe and the hot water pipe will be watered, that is, there will be a large amount of hot water in the cold water pipe. At this time, if the user needs to use cold water, the hot water in the cold water pipe needs to be discharged first, which causes poor user experience, and heating the water body in the cold water pipe during preheating will cause energy waste.

[0003] Therefore, it has become a technical problem to be solved by those skilled in the art to provide a preheating method without heating the cold water pipe or the return water pipe to save energy. SUMMARY

[0004] In view of the above, the present application provides a low-power preheating control method, a water heater and a storage medium, which aims to solve the above technical problems.

[0005] In a first aspect, the present application provides a low-power preheating control method applied to a water heater, wherein the water heater is connected to at least one water using device through a hot water pipe and a cold water pipe, and a wake-up device for triggering the water heater to stop preheating is arranged between the hot water pipe and the cold water pipe of the water using device, the wake-up device is in communication connection with the water heater through a control device, and the method comprises:

[0006] Based on the instructions received by the control device or the water heater, a target water using device is determined, wherein the target water using device is a water using device to be used with hot water;

[0007] The water heater is controlled to start preheating and run a water pump, so that the heated water body flows through the wake-up device corresponding to the target water using device into the cold water pipe of the target water using device, the wake-up device detects the current temperature value of the water body in real time and transmits it to the water heater;

[0008] If the current temperature value is greater than a preset value, the water heater is controlled to stop preheating and the water pump is controlled to stop running, so that the wake-up device closes the channel for the water body to flow from the hot water pipe to the cold water pipe.

[0009] In a second aspect, the water heater is connected to at least one water using device through a hot water pipe and a cold water pipe, and a wake-up device is arranged between the hot water pipe and the cold water pipe of the water using device to trigger the water heater to stop preheating, the wake-up device is communicatively connected to the water heater through a control device, and the water heater further comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are in communication with each other through the communication bus.

[0010] The memory is configured to store a computer program.

[0011] The processor is configured to execute the program stored in the memory to implement the low-power preheating control method of any one of the embodiments of the first aspect.

[0012] In a third aspect, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the low-power preheating control method of any one of the embodiments of the first aspect.

[0013] Compared with the prior art, the above technical solution provided by the embodiments of the present application has the following advantages:

[0014] In the present application, a wake-up device for triggering the water heater to stop preheating is arranged between the hot water pipe and the cold water pipe of the water using device, the wake-up device is communicatively connected to the water heater through a control device, and the instructions received by the control device or the water heater can determine the target water using device, wherein the target water using device is a water using device that needs hot water, the water heater is controlled to start preheating and run the water pump, so that the heated water flows through the wake-up device corresponding to the target water using device into the cold water pipe of the target water using device, the wake-up device can detect the current temperature value of the water in real time and transmit it to the water heater, and if the current temperature value is greater than a preset value, the water heater is controlled to stop preheating and the water pump is controlled to stop running, and since the water pump stops running, the wake-up device is closed, so that the water cannot flow from the hot water pipe to the cold water pipe, thereby ensuring that the cold water pipe and the hot water pipe will not be mixed after preheating is completed, improving the user experience, and without heating the water in the cold water pipe, energy consumption is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0017] One or more embodiments are illustrated by way of example in the drawings and described herein in connection with these illustrative examples. These examples are not intended to limit the scope of the embodiments to those examples described, but rather, serve as well to cover any modification or equivalent arrangements, as would be appreciated by those skilled in the art. The drawings are not to scale, and are intended for use only in conjunction with the description herein. Throughout the drawings, the same reference numbers are used in different drawings to indicate the same or similar components.

[0018] Figure 1 A flowchart of a low-power preheating control method embodiment of the present application;

[0019] Figure 2 A framework diagram of a low-power preheating control system in an embodiment of the present application;

[0020] Figure 3 A structure diagram of a wake-up device in an embodiment of the present application;

[0021] Figure 4 A diagram of a water heater embodiment of the present application;

[0022] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0024] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplicity, the elements and settings of particular examples in the following description are shown in detail. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application can refer to a reference numeral and / or letter in different examples. Such repetition is for the purpose of simplicity and clarity and does not indicate a relationship between the various embodiments and / or settings discussed.

[0025] The present application provides a low-power preheating control method. Referring to Figure 1 As shown in FIG. 1, a method flowchart of a low-power preheating control method embodiment of the present application. The method can be performed by an electronic device (for example, a water heater), which can be implemented by software and / or hardware. Wherein, the water heater is connected with at least one water-using device through a hot water pipe and a cold water pipe, a wake-up device is arranged between the hot water pipe and the cold water pipe of the water-using device to trigger the water heater to stop preheating, the wake-up device is in communication connection with the water heater through a control device, and the method comprises:

[0026] Step S10: determining a target water-using device based on the instruction received by the operation device or the water heater, wherein the target water-using device is a water-using device to be heated by hot water;

[0027] Step S20: controlling the water heater to start preheating and operating a water pump, so that the heated water flows through the wake-up device corresponding to the target water-using device into the cold water pipe of the target water-using device, and the wake-up device detects the current temperature value of the water body in real time and transmits it to the water heater;

[0028] Step S30: if the current temperature value is greater than a preset value, controlling the water heater to stop preheating and controlling the water pump to stop operating, so that the wake-up device closes the channel of the water body flowing from the hot water pipe to the cold water pipe.

[0029] In combination Figure 2 The frame diagram of the low-power preheating control system is shown, and the low-power preheating control method in the embodiment is described in detail. The water-using device can be a mechanical device such as a shower or a faucet, or an electronic device such as a water purifier or a water dispenser. The water heater is connected to multiple water-using devices through hot water pipes and cold water pipes. The hot water pipe and the cold water pipe of each water-using device can be provided with a wake-up device for triggering the water heater to stop preheating. The wake-up device is in communication connection with the water heater through an operation device. The operation device is used for starting the preheating of the water heater by the user. The wake-up device is in communication connection with the operation device through WIFI or Bluetooth, and the operation device is in communication connection with the water heater through WIFI or Bluetooth. The Bluetooth connection can be a Bluetooth Low Energy (BLE) connection. The BLE connection has the advantage of low power consumption compared with the traditional Bluetooth.

[0030] The operation device can be a control terminal with physical buttons or virtual buttons. Each water-using device can be installed with a corresponding operation device to facilitate the user to start the preheating function of the water heater through the operation device when needed. The operation device can also be a terminal triggered by infrared rays, that is, when the user approaches the operation device, the infrared sensor installed in the operation device wakes up and starts the preheating function of the water heater.

[0031] The water heater is installed with a probe for measuring the temperature of the inlet water and a probe for measuring the temperature of the outlet water, which can monitor the temperature values of the inlet water and the outlet water of the water heater. A circulating water pump installed in the water heater is used to flow the heated water to each water-using device.

[0032] Specifically, when a user uses a certain water-using device, if the water in the certain water-using device needs to be preheated, the user can issue a preheating instruction through the control device or the water heater. If the instruction is issued through the control device, the control device transmits the instruction to the water heater through WIFI or Bluetooth. For example, when the user initiates an instruction by pressing a key of the control device while using the water-using device 3, the water heater takes the water-using device 3 as a target water-using device, i.e., the water-using device 3 needs to use hot water. It can be understood that a control device can be installed near each water-using device.

[0033] After the target water-using device is determined, the water heater is controlled to start preheating and run the water pump, so that the heated water reaches the wake-up device corresponding to the target water-using device through the hot water pipe. The wake-up device can be a low-power wake-up device, and a valve with on-off function is arranged in the wake-up device. Therefore, the heated water can flow through the wake-up device and enter the cold water pipe of the target water-using device to achieve preheating. Since the preheating needs to be stopped when the temperature of the water reaches a certain value, the temperature of the heated water needs to be detected in real time. In this embodiment, a temperature sensor arranged in the wake-up device is used to detect the current temperature value of the heated water in real time. The temperature sensor can be installed at a position before the water flows through the valve in the wake-up device, so as to quickly and accurately detect the preheating water temperature. The wake-up device can transmit the current temperature value of the heated water to the water heater through WIFI or Bluetooth.

[0034] After the water heater receives the current temperature value of the heated water, it is determined whether the temperature value is greater than a preset value. The preset value can be lower than the temperature value set by the current water heater, and the preset value can be set according to actual needs, which is not limited herein. If the current temperature value of the heated water is greater than the preset value, it means that the heating needs to be stopped at this time. At this time, the water heater is controlled to stop preheating and the water pump is controlled to stop running. After the water pump stops running, the spring of the valve in the wake-up device drives the valve to reset, so as to reset the wake-up device, thereby solving the problem of incomplete heating or preheating of cold water in the cold water pipe, and ensuring that the cold water pipe and the hot water pipe do not mix water after preheating is completed, thereby improving the user experience.

[0035] In one embodiment, the user can not only issue a preheating instruction through the control device, but also issue a preheating instruction through the water heater itself or an APP corresponding to the water heater. The step of "determining a target water-using device based on an instruction received by the control device or the water heater" includes:

[0036] receiving a wake-up instruction initiated by the user through the control device, determining an identification number of the control device corresponding to the wake-up instruction, and taking a water-using device corresponding to the identification number as the target water-using device;

[0037] Alternatively, a preheating instruction initiated by a user through the water heater is received, and a water-using device corresponding to the preheating instruction is determined as the target water-using device.

[0038] Each control device has a unique identification number, and the control device and the water-using device can be one-to-one correspondence, and the water-using device and the wake-up device are also one-to-one correspondence. For example, the control device 3 corresponds to the water-using device 3, and the wake-up instruction initiated by the user through the control device 3 is transmitted to the water heater. The water heater determines that the identification number of the control device corresponding to the wake-up instruction is No. 3, so that the water-using device 3 corresponding to the control device 3 is determined as the target water-using device. The control device is installed near the water-using device, and when the user has a preheating or temperature adjusting demand, the control device can be operated to wake up the water heater to heat the water. Since the control device and the water heater are connected through WIFI, low-power design can be ensured, and the user can preheat without going to the installation position of the whole machine of the water heater, thereby improving the convenience of preheating operation.

[0039] The user can also initiate a preheating instruction through the water heater, for example, the user initiates a preheating instruction through the control button of the water heater or the APP corresponding to the water heater, and selects the water-using device corresponding to the preheating instruction, and the water-using device corresponding to the preheating instruction is determined as the target water-using device. When the control device fails, the preheating demand of the user can also be met. It should be noted that if the preheating is initiated from the water heater or the APP, the water heater can preheat based on the temperature at the time of the first start preheating multiplied by a preset coefficient. For example, the value range of the coefficient can be [0.5, 1], and if the water heater outflow temperature value set by the water heater at the time of the first start preheating is 50 degrees, the temperature of this preheating can be stopped when the water reaches 40 degrees.

[0040] In one embodiment, since the water heater may have just been preheated, or the user triggers the wake-up preheating instruction initiated by the control device due to misoperation after preheating is completed, in order to avoid energy waste caused by repeated preheating, the outflow temperature needs to be detected before preheating. Specifically, before the water heater is controlled to start preheating and run the water pump, the method further comprises:

[0041] reading the outflow temperature value of the water heater;

[0042] determining whether the outflow temperature value is less than a preset value;

[0043] If yes, the water heater is controlled to start preheating and run the water pump.

[0044] The water temperature value of the water heater is read by the water outlet temperature value reading device installed in the water heater, and it is judged whether the water temperature value is less than a preset value. If it is greater than or equal to the preset value, it means that the temperature of the water body can meet the preheating demand of the user, so the preheating function of the water heater is not started, thereby avoiding repeated preheating when the water outlet temperature value of the water heater is high. If the water temperature value is less than the preset value, it means that the current temperature of the water body cannot meet the preheating demand of the user, at which time the water heater is controlled to start the preheating function and run the water pump.

[0045] In one embodiment, since there are usually multiple water using devices connected to the water heater in actual application, in order to avoid energy waste, the conduction pressure of the wake-up device corresponding to each water using device can be set to different values, for example, the pressure value of the valve body of each wake-up device is different, and the conduction pressure value of the wake-up device corresponding to the water using device with the highest preheating demand frequency is set to the minimum, so that the water pressure of the heated water body can only conduct the wake-up device, and cannot conduct other wake-up devices, thereby realizing point preheating. Specifically, the above-mentioned "controlling the water heater to start preheating and run the water pump to make the heated water body flow through the target wake-up device corresponding to the target water using device into the cold water pipe of the target water using device" comprises:

[0046] determining the target wake-up device corresponding to the target water using device;

[0047] obtaining the pressure value for driving the one-way valve assembly in the target wake-up device to conduct;

[0048] controlling the water heater to start preheating and run the water pump based on the pressure value to make the heated water body flow through the target wake-up device corresponding to the target water using device into the cold water pipe of the target water using device.

[0049] In combination with the structure diagram of the wake-up device shown in Figure 3 The flow direction of the heated water body is illustrated in combination with the structure diagram of the wake-up device shown in the drawings. The wake-up device comprises a Hall chip 1, a low-power device control circuit board 2, a fixed cover plate 3, a detachable battery 4, a temperature sensor 5, a one-way valve assembly 6, a magnet 7, and a valve body 8. The one-way valve assembly of each wake-up device can adopt springs with different resistances, so that the pressure values of the water body conducting each wake-up device are different, and the pressure values of the water body conducting each wake-up device can be pre-configured in the water heater. First, the wake-up device corresponding to the target water using device is determined (denoted as the target wake-up device), the pressure value for driving the one-way valve assembly in the target wake-up device to conduct is obtained, and the water heater is controlled to start preheating and run the water pump based on the pressure value, so that the heated water body flows through the target wake-up device and then enters the cold water pipe of the target water using device.

[0050] Further, the process of "controlling the water heater to start preheating and controlling the water pump to run based on the pressure value, so that the heated water flows through the corresponding wake-up device of the target water device into the cold water pipe of the target water device" includes:

[0051] controlling the water heater to start preheating and controlling the water pump to run based on the pressure value, so that the heated water flows through the corresponding wake-up device of the target water device into the cold water pipe of the target water device, and the one-way valve assembly in the target wake-up device drives the magnet to move, so that the Hall chip in the target wake-up device generates a signal to detect the current temperature value of the water body and transmits the current temperature value to the water heater.

[0052] Preheating starts and the water pump runs based on the pressure value of the one-way valve assembly in the target wake-up device. At this time, under the action of water force, the one-way valve in the target wake-up device is pushed open, so that the wake-up device is in a conductive state (i.e. the heated water can flow from the hot water pipe through the induction device into the cold water pipe), and under the action of water force, the one-way valve assembly 6 moves to drive the magnet 7 to move, which makes the signal of the Hall chip 1 flip, and the MCU of the low-power device control circuit board 2 realizes interrupt detection, so that the target wake-up device enters from sleep to wake-up state, and the water temperature detection of the water body flowing through the one-way valve assembly 6 is started through the temperature sensor 5, so as to transmit the current temperature value of the water body to the water heater. The backwater temperature detected by the temperature sensor 5 in the wake-up device can realize precise temperature control and solve the problem of incomplete heating or preheating of cold water in the cold water pipe, which greatly improves the user experience.

[0053] It should be noted that when the preheating function is not started, the one-way valve assembly 6 is in its original position, and the Hall chip 1 has no interrupt trigger signal, so that the wake-up device is in a low-power sleep state, i.e. the wake-up device is in a non-conductive state.

[0054] Further, the process of "controlling the water heater to stop preheating and controlling the water pump to stop running, so that the wake-up device closes the channel for the water to flow from the hot water pipe to the cold water pipe" includes:

[0055] controlling the water heater to stop preheating and controlling the water pump to stop running, so that the one-way valve assembly in the target wake-up device closes the channel for the water to flow from the hot water pipe to the cold water pipe, and the one-way valve assembly drives the magnet to reset so that the Hall chip in the target wake-up device enters a sleep state.

[0056] When the preheating stop condition is met (i.e., the current temperature value of the heated water body is greater than the preset value), the water heater stops preheating and controls the water pump to stop running. Due to the stop of the water pump, the spring of the one-way valve assembly 6 resets and drives the magnet 7 to move, so that the Hall signal 1 flips again, thereby controlling the wake-up device to enter the sleep state. Through the management of the sleep and wake-up states of the wake-up device by the Hall chip 1 and the low-power device control circuit 2 board, the wake-up device can maintain low power consumption when preheating is not started, save the power of the wake-up device, improve the endurance of the wake-up device, and the wake-up device does not need to be connected to the mains or frequently replace the battery of the wake-up device, thereby improving the user experience.

[0057] In one embodiment, the process of "the wake-up device detecting the current temperature value of the water body in real time and transmitting to the water heater" described above includes:

[0058] The wake-up device detects the current temperature value of the water body in real time, and transmits the current temperature value to a target control device in communication connection with the wake-up device;

[0059] The target control device transmits the current temperature value to the water heater.

[0060] After the wake-up device enters the wake-up state from the sleep state, the current temperature value of the water body flowing through the one-way valve assembly 6 is detected by the temperature sensor 5. Since the wake-up device and the control device are in communication connection, the wake-up device can transmit the current temperature value to the control device (referred to as the target control device) in communication connection with the wake-up device through Bluetooth or WIFI, so that the target control device transmits the current temperature value of the heated water body to the water heater through Bluetooth or WIFI, so that the water heater can determine whether to stop preheating according to the accurate current temperature value of the heated water body.

[0061] Referring to Figure 4 Fig. 1 is a schematic diagram of a preferred embodiment of the water heater of the present application.

[0062] The water heater is connected to at least one water-using device through a hot water pipe and a cold water pipe. A wake-up device for triggering the water heater to stop preheating is arranged between the hot water pipe and the cold water pipe of the water-using device. The wake-up device is in communication connection with the water heater through a control device. The water heater further includes a processor 111, a communication interface 112, a memory 113, and a communication bus 114. The processor 111, the communication interface 112, and the memory 113 complete communication with each other through the communication bus 114.

[0063] The memory 113 is used to store computer programs, such as a low-power preheating control program.

[0064] The processor 111 may, in some embodiments, be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip. The processor 111 is generally used to control the overall operation of the water heater, such as performing data interaction or communication related control and processing, etc. In the present embodiment, the processor 111 is used to run program codes or process data stored in the memory 113, such as running program codes of the low-power preheating control program, etc.

[0065] The communication interface 112 may, optionally, include a standard wired interface, a wireless interface (such as a WI-FI interface), and be used to establish a communication connection between the water heater and other water heaters.

[0066] The memory 113 includes at least one type of readable storage medium, such as a flash memory, a hard disk, a multimedia card, a card-type memory (such as an SD or DX memory, etc.), a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the memory 113 may be an internal storage unit of the water heater, such as a hard disk or a memory of the water heater. In other embodiments, the memory 113 may also be an external storage device of the water heater, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. of the water heater. Of course, the memory 113 may also include both the internal storage unit and the external storage device of the water heater. In the present embodiment, the memory 113 is generally used to store an operating system and various computer programs installed in the water heater, such as program codes of the low-power preheating control program, etc. In addition, the memory 113 may also be used to temporarily store various data that have been output or will be output.

[0067] Figure 4 Only the water heater with components 111-114 is shown, but it should be understood that not all of the shown components are required to be implemented, and more or fewer components may be alternatively implemented.

[0068] In an embodiment of the present application, the processor 111, when executing the program stored in the memory 113, implements the low-power preheating control method provided by any one of the method embodiments described above, including:

[0069] determine a target water-using device based on the instruction received by the control device or the water heater, wherein the target water-using device is a water-using device that is to use hot water;

[0070] control the water heater to start preheating and control the water pump to start running, so that the heated water body flows through the wake-up device corresponding to the target water-using device into the cold water pipe of the target water-using device, and the wake-up device detects a current temperature value of the water body in real time and transmits the current temperature value to the water heater;

[0071] if the current temperature value is greater than a preset value, control the water heater to stop preheating and control the water pump to stop running, so that the wake-up device closes the passage of the water body from the hot water pipe to the cold water pipe.

[0072] For detailed description of the above steps, please refer to the above Figure 1 For the flowchart of the low-power preheating control method embodiment.

[0073] In addition, the embodiment of the present application also provides a computer readable storage medium, which can be non-volatile or volatile. The computer readable storage medium includes a storage data area and a storage program area, and the storage program area stores a low-power preheating control program. When the low-power preheating control program is executed by a processor, the following operations are realized:

[0074] determine a target water-using device based on the instruction received by the control device or the water heater, wherein the target water-using device is a water-using device that is to use hot water;

[0075] control the water heater to start preheating and control the water pump to start running, so that the heated water body flows through the wake-up device corresponding to the target water-using device into the cold water pipe of the target water-using device, and the wake-up device detects a current temperature value of the water body in real time and transmits the current temperature value to the water heater;

[0076] if the current temperature value is greater than a preset value, control the water heater to stop preheating and control the water pump to stop running, so that the wake-up device closes the passage of the water body from the hot water pipe to the cold water pipe.

[0077] The specific implementation of the computer readable storage medium of the present application is substantially the same as that of the low-power preheating control method described above, and will not be described here.

[0078] The device embodiments described above are only schematic, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., they can be located in one place, or distributed on multiple network units. According to actual needs, part or all of the modules can be selected to achieve the purpose of the embodiment.

[0079] Those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and of course can also be implemented by hardware. Based on such an understanding, the above technical solutions can be embodied in the form of a software product, and the computer software product can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, and the like, and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0080] It should be noted that the terms "first", "second", and the like in the present application are only used for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0081] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless otherwise specifically identified as an order dependent step. It is also understood that additional or alternative steps can be employed.

[0082] The above description is merely one specific implementation of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A low-power preheat control method, characterized by, The application is applied to a water heater, which is connected with at least one water using device through hot water pipes and cold water pipes, and a wake-up device is arranged between the hot water pipes and the cold water pipes of the water using device to trigger the water heater to stop preheating, the wake-up device is connected with the water heater through a control device, and the method comprises the following steps: Based on the instructions received by the control device or the water heater, the target water using device is determined, wherein the target water using device is the water using device to be used with hot water; The water heater is controlled to start preheating and run a water pump, so that the heated water flows through the wake-up device corresponding to the target water using device into the cold water pipe of the target water using device, and the wake-up device detects the current temperature value of the water in real time and transmits it to the water heater; If the current temperature value is greater than a preset value, the water heater is controlled to stop preheating and the water pump is controlled to stop running, so that the wake-up device closes the channel of the water flowing from the hot water pipe to the cold water pipe; The control of the water heater to start preheating and the water pump to run so that the heated water flows through the wake-up device corresponding to the target water using device into the cold water pipe of the target water using device comprises the following steps: The target wake-up device corresponding to the target water using device is determined; The pressure value driving the one-way valve assembly in the target wake-up device to be open is obtained; The water heater is controlled to start preheating and the water pump is controlled to run based on the pressure value, so that the heated water flows through the wake-up device corresponding to the target water using device into the cold water pipe of the target water using device; The control of the water heater to start preheating and the water pump to run so that the heated water flows through the wake-up device corresponding to the target water using device into the cold water pipe of the target water using device, and the wake-up device detects the current temperature value of the water in real time and transmits it to the water heater, comprises the following steps: The water heater is controlled to start preheating and the water pump is controlled to run based on the pressure value, so that the heated water flows through the target wake-up device based on the pressure value and opens the one-way valve assembly in the target wake-up device, and then enters the cold water pipe of the target water using device, so that the one-way valve assembly drives the magnet to move, the Hall chip in the target wake-up device generates a signal for detecting the current temperature value of the water, and the current temperature value is transmitted to the water heater.

2. The low-power preheat control method of claim 1, wherein, The determination of the target water using device based on the instructions received by the control device or the water heater comprises the following steps: A wake-up instruction initiated by a user through the control device is received, the identification number of the control device corresponding to the wake-up instruction is determined, and the water using device corresponding to the identification number is taken as the target water using device; Or, a preheating instruction initiated by a user through the water heater is received, the water using device corresponding to the preheating instruction is determined, and the water using device corresponding to the preheating instruction is taken as the target water using device.

3. The low-power preheat control method of claim 1, wherein, Before the water heater is controlled to start preheating and the water pump is controlled to run, the method further comprises the following steps: The outlet water temperature value of the water heater is read; It is judged whether the outlet water temperature value is less than a preset value; If yes, the water heater is controlled to start preheating and the water pump is controlled to run.

4. The low-power preheat control method of claim 1, wherein, The control of the water heater to stop preheating and the water pump to stop running so that the wake-up device closes the channel of the water flowing from the hot water pipe to the cold water pipe comprises the following steps: The water heater is controlled to stop preheating, and the water pump is controlled to stop running, so that the one-way valve assembly in the target wake-up device closes the passage of the water body from the hot water pipe to the cold water pipe, the magnet is reset, and the Hall chip in the target wake-up device enters the dormant state.

5. The low-power preheat control method of claim 1, wherein, The wake-up device detects the current temperature value of the water body in real time and transmits it to the water heater, including: The wake-up device detects the current temperature value of the water body in real time and transmits it to the target control device in communication connection with the wake-up device. The target control device transmits the current temperature value to the water heater.

6. The low-power preheat control method of claim 1, wherein, The wake-up device is in communication connection with the water heater through a control device, including: The wake-up device is in communication connection with the control device through WIFI or Bluetooth, and the control device is in communication connection with the water heater through WIFI or Bluetooth.

7. A water heater, characterised by The water heater is connected with at least one water-using device through a hot water pipe and a cold water pipe, a wake-up device for triggering the water heater to stop preheating is arranged between the hot water pipe and the cold water pipe of the water-using device, the wake-up device is in communication connection with the water heater through a control device, and the water heater further includes a processor, a communication interface, a memory and a communication bus. The memory is used for storing a computer program. The processor is used for executing the program stored on the memory, and realizes the low-power preheating control method in any one of claims 1 to 6.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the low-power preheating control method in any one of claims 1 to 6.

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