Control method and device of water purifier, electronic equipment and storage medium

Abstract

The invention relates to the technical field of purification equipment, in particular to a water purifier control method and device, electronic equipment and a storage medium. The method comprises the steps that a water purifier is started, and the first water pressure of a water inlet pipeline is obtained; whether the first water pressure is larger than a preset first water pressure threshold value or not is determined; if yes, a booster pump is controlled to operate at the operation power corresponding to the current floor till the second water pressure in the water inlet pipeline is smaller than or equal to the first water pressure threshold value; determining whether the second water pressure is less than or equal to a negative pressure threshold; if not, determining the difference value between the current operation power and the preset adjustment step length as the target operation power; and controlling the booster pump to operate at the target operation power. In the working process of the water purifier, when the water pressure of the water inlet pipeline is lower than the preset water pressure threshold value, the operation power mode of the booster pump is adjusted, so that the water purifier can still be used when the water pressure of the water inlet pipeline is low, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of purification equipment, and in particular to a water purifier control method, device, electronic equipment, and storage medium. Background Art

[0002] Water purifiers on the market are usually equipped with booster pumps to increase the water pressure in the internal pipes to ensure that water flows smoothly through the filtration system. However, starting the booster pump when the water pressure is insufficient may cause the pump's water absorption capacity to exceed the capacity of the water supply system, causing the water pressure in the pipe in front of the pump to drop to zero or negative pressure. In this case, the pipe may be deformed, damaged or leak due to atmospheric pressure.

[0003] To avoid such problems, water purifiers generally have a water pressure threshold. When the water pressure is detected to be lower than this threshold, the system will consider that there is a water shortage and stop the booster pump to protect the device from damage. However, in actual use, the water pressure may fluctuate due to a variety of factors. For example, when the user turns on the faucet of the water purifier, the water pressure may drop. If the initial water pressure is already low, a further drop may cause the water pressure to fall below the set threshold, thereby triggering the protection mechanism, causing the booster pump to stop working and issue an error prompt. Although this design is intended to protect the device, sudden shutdowns and error prompts may have a negative impact on the user experience. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a control method, device, electronic device and storage medium for a water purifier.

[0005] In a first aspect, an embodiment of the present invention provides a method for controlling a water purifier, the method comprising:

[0006] Start the water purifier and obtain the first water pressure of the water inlet pipe;

[0007] determining whether the first water pressure is greater than a preset first water pressure threshold;

[0008] If yes, control the booster pump to operate at the operating power corresponding to the current floor until the second water pressure in the water inlet pipe is less than or equal to the first water pressure threshold;

[0009] determining whether the second water pressure is less than or equal to a negative pressure threshold;

[0010] If not, the difference between the current operating power and the preset adjustment step is determined as the target operating power;

[0011] The boost pump is controlled to operate at the target operating power.

[0012] In combination with the first aspect, the step of controlling the booster pump of the water purifier to operate at an operating power corresponding to the current floor includes:

[0013] Get the current floor information;

[0014] According to the preset mapping relationship, the operating power corresponding to the current floor information is obtained;

[0015] The boost pump is controlled to run at operating power.

[0016] In combination with the first aspect, after the step of determining whether the first water pressure is greater than a preset first water pressure threshold, the method further includes:

[0017] If not, make sure the water pressure in the water inlet pipe is insufficient;

[0018] Control the water purifier to stop running and return an error message.

[0019] In combination with the first aspect, after the step of determining whether the second water pressure is less than or equal to the negative pressure threshold, the method further includes:

[0020] If so, the booster pump is controlled to stop working and the gas compensation valve is opened, and a prompt message of water shortage or water outage is returned.

[0021] In combination with the first aspect, after the step of controlling the booster pump to operate at the target operating power, the method further includes:

[0022] Determining whether the target operating power is less than a preset operating power threshold;

[0023] If yes, the water purifier is controlled to stop running and an abnormal prompt message is returned;

[0024] If not, the target operating power of the boost pump is adjusted again until the target operating power is less than the preset operating power threshold.

[0025] In combination with the first aspect, a bubble detector or an air content detector is provided in the water inlet pipe; the method further comprises:

[0026] Obtain the air content in the water inlet pipe of the water purifier;

[0027] If the air content is greater than a preset air content threshold, the operating power of the booster pump is adjusted according to a preset step size until the adjusted operating power of the booster pump is less than or equal to the operating power threshold;

[0028] Control the water purifier to stop running.

[0029] In combination with the first aspect, the method further includes:

[0030] Get the water flow rate of the water outlet of the water purifier;

[0031] Determine whether the change in water flow rate corresponds to the change in operating power of the booster pump;

[0032] If not, an abnormal prompt message is returned to the water purifier.

[0033] In a second aspect, the present application provides a control device for a water purifier, the device comprising:

[0034] An acquisition module is used to start the water purifier and obtain the first water pressure of the water inlet pipe;

[0035] A first determination module, used to determine whether the first water pressure is greater than a preset first water pressure threshold;

[0036] A first control module is used to control the booster pump of the water purifier to operate at an operating power corresponding to the current floor when the first water pressure is greater than a preset first water pressure threshold, until the second water pressure in the water inlet pipe is less than or equal to the first water pressure threshold;

[0037] A second determination module, used to determine whether the second water pressure is less than or equal to a negative pressure threshold;

[0038] A determination module, used to determine the difference between the current operating power and the preset adjustment step as the target operating power when the pressure is greater than the negative pressure threshold;

[0039] The second control module is used to control the boost pump to operate at a target operating power.

[0040] In a third aspect, the present application provides an electronic device, which includes a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to execute the above method.

[0041] In a fourth aspect, the present application provides a readable storage medium, in which computer program instructions are stored. When the computer program instructions are read and executed by a processor, the above method is executed.

[0042] The embodiments of the present invention bring about the following beneficial effects: the water purifier control method, device, electronic device, and storage medium provided in the present application adjust the operating power of the booster pump when the water pressure in the water inlet pipe is lower than a preset water pressure threshold during the operation of the water purifier, so that the water purifier can still be used when the water pressure in the water inlet pipe is low, thereby improving the user experience.

[0043] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 A schematic diagram of the connection of various components in a water purifier provided in an embodiment of the present invention;

[0047] Figure 2 A schematic flow chart of a control method for a water purifier provided by an embodiment of the present invention;

[0048] Figure 3 A schematic diagram of a control device for a water purifier provided in an embodiment of the present invention;

[0049] Figure 4 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0050] Reference numerals:

[0051] 10 - acquisition module, 20 - first determination module, 30 - first control module, 40 - second determination module, 50 - third determination module, 60 - second control module;

[0052] 130 - processor, 131 - memory, 132 - bus, 133 - communication interface. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, 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 work are within the scope of protection of the present invention.

[0054] In order to facilitate the understanding of this embodiment, the technical terms designed in this application are briefly introduced below.

[0055] A water purifier is a device used to purify water. It removes impurities, harmful substances and microorganisms in water through filtration, adsorption, disinfection and other methods to improve the safety and taste of drinking water. The water first enters the pre-filter to remove larger suspended solids, and then the water flows through the activated carbon filter element to remove chemicals and odors and improve the taste of the water. In a water purifier equipped with a reverse osmosis membrane, high pressure forces the water to flow through the RO membrane, allowing almost only water molecules to pass through, effectively removing tiny particles, minerals, bacteria and viruses. The water that passes through the reverse osmosis membrane passes through the post-activated carbon filter element for the last taste and quality improvement. After that, the purified water is sent to the water storage tank for storage and is provided to users through the faucet or distribution system when needed. Furthermore, in some high-end water purifiers, the water will pass through ultraviolet lamps before storage or discharge to ensure sterility. In summary, the water purifier effectively improves water quality and provides safer drinking water through a multi-stage filtration system, combined with physical interception, adsorption technology and (optional) sterilization technology.

[0056] The main function of the booster pump in the water purifier is to increase the water pressure, which is to overcome the high pressure required in the reverse osmosis membrane (RO membrane) filtration process. Among them, reverse osmosis is a very effective purification technology that can block dissolved salts, organic matter, bacteria, viruses and other tiny particles in the water. However, to achieve this process, the water needs to withstand a large pressure when passing through the RO membrane, generally requiring a pressure of 2-8 kg (about 20-80 psi). Specifically, the original pressure of tap water is often not enough to drive water molecules through the reverse osmosis membrane. The booster pump increases the water flow pressure through the motor operation to ensure that the water can be effectively filtered through the RO membrane. In areas with unstable or low water pressure, the booster pump can ensure that the water purifier continues to work stably and provide a continuous supply of purified water.

[0057] Therefore, the booster pump is an important component in a water purifier with a reverse osmosis system, which is directly related to the efficiency and stability of the entire water purification process.

[0058] After introducing the technical terms involved in this application, the application scenarios and design concepts of the embodiments of this application are briefly introduced.

[0059] In order to prevent the water purifier from being damaged due to excessive pipe pressure, the existing water purifier often sets a water pressure threshold F0. When it is detected that the pipe water pressure F is lower than the water pressure threshold F0, the water purifier will generally be shut down directly, resulting in a poor user experience.

[0060] Based on this, the embodiments of the present application provide a control method, device, electronic device, and storage medium for a water purifier.

[0061] Example 1

[0062] The present application provides a control method for a water purifier, which is applied to a control unit in a water purifier control system. The water purifier control system includes a water inlet side and a water outlet side of the water purifier, the water inlet side is connected to a tap water pipe through an inlet pipe, a water pressure detection mechanism (such as a water pressure sensor, a pressure gauge, a water pressure detector) connected to the control unit is arranged in the inlet pipe, and is used to detect the pressure of water flow flowing to the water inlet machine; the water outlet side of the water purifier is connected to a water storage device (such as a water tank) and a water supply device (such as a faucet) through an outlet pipe, and a filtering device is also arranged in the outlet pipe.

[0063] Combination Figure 1 As shown, tap water is extracted from the water pipe and purified by the water purifier before being transported to the taps on each floor through the water outlet pipe. Before entering the booster pump, the water pressure detector will detect the water pressure in the water inlet pipe to ensure that the water pressure is within the appropriate range. According to the input water pressure, the booster pump output power is adjusted to ensure that the water flows smoothly through the filtration system. When the user is on a higher floor, the booster pump also needs to work at a higher power. The water purifier pipe and water pressure detector will also be under great pressure, increasing the risk of damage to the water purifier. In order to adapt to different water pressure conditions and reduce the risk of damage and leakage, the air pressure compensation valve will adjust the air pressure in the system and introduce air to adjust the pipeline pressure when necessary to help maintain the normal operation of the filtration system.

[0064] A filtering device is also provided in the water outlet pipe between the booster pump and the faucet to further filter the water before delivering it to the faucet.

[0065] Combination Figure 2 As shown, the method includes:

[0066] S110, starting the water purifier and obtaining the first water pressure of the water inlet pipe.

[0067] S120, determining whether the first water pressure is greater than a preset first water pressure threshold.

[0068] If so, execute step S130.

[0069] S130, controlling the booster pump of the water purifier to operate at an operating power corresponding to the current floor until the second water pressure in the water inlet pipe is less than or equal to the first water pressure threshold.

[0070] S140, determining whether the second water pressure is less than or equal to a negative pressure threshold.

[0071] If not, execute steps S150-S160.

[0072] S150: Determine the difference between the current operating power and the preset adjustment step as the target operating power.

[0073] S160, controlling the boost pump to operate at the target operating power.

[0074] In this application, after starting the water purifier, when the water pressure in the water inlet pipe is greater than the set first water pressure threshold, the booster pump operates to pressurize the water flow so that the water flows out quickly, resulting in a decrease in the water flow in the water inlet pipe. At this time, if the second water pressure in the water inlet pipe is between the first water pressure threshold and the negative pressure threshold, the normal operation of the water purifier is maintained by reducing the operating power of the booster pump and reducing the water output, which is more in line with the user's usage habits and avoids damage to the water purifier caused by frequent start and stop. In this way, in the face of sudden water pressure changes, timely adjustments can be made to prevent damage to the water purifier, and the protection effect is better.

[0075] Among them, the first water pressure threshold can be set according to actual usage requirements.

[0076] It can be understood that the control unit also includes a storage space, in which a one-to-one correspondence between different floors and different operating powers of the booster pump is stored.

[0077] In combination with the first aspect, the step of controlling the booster pump of the water purifier to operate at the operating power corresponding to the current floor in step S130 includes:

[0078] S131, obtain current floor information.

[0079] S132: Obtain the operating power corresponding to the current floor information according to a preset mapping relationship.

[0080] S133, controlling the boost pump to operate at operating power.

[0081] Among them, in step S131, as an implementable method, a gravity sensor is arranged inside the water purifier, and the gravity sensor is connected to the control unit. The current floor is calculated by acquiring gravity sensing data and the floor height data of the floor, wherein the floor height data of the floor can be obtained based on information acquisition based on the Internet of Things or based on residential building standards.

[0082] As another feasible method, the storage space also stores the device identification corresponding to each water purifier, and each device identification also corresponds to an address information, based on which the specific floor information can be determined. For example, when producing a water purifier, the water purifier will be encoded according to the manufacturer's internal standards, industry standards, production date, batch, signal, etc., so that each water purifier corresponds to a unique device identification. After the water purifier is sold, distributed, and installed, the location information of the application of the water purifier will be recorded, specifically to xx unit xx room xx building xx community, so that one device identification corresponds to a specific location information, so that the current floor information can be determined based on the device identification of the water purifier.

[0083] It can be understood that the above two methods are only examples, and the current floor information can also be obtained by other methods, which are not limited here.

[0084] In this embodiment, the storage space in the control unit also stores the correspondence between multiple floor information and multiple operating powers. After the current floor information is determined in step S131, the corresponding operating power can be obtained according to the above correspondence, and then the booster pump is controlled to operate based on the operating power. It can be understood that, in general, as the number of floors of a building increases, in order to ensure that water can be smoothly transported to high floors, the booster pump requires greater force (higher power) to work. This is because water needs to overcome gravity to flow to higher places, so the higher the floor, the greater the pressure requirement for the water pump.

[0085] In combination with the first aspect, after step S120, the method further includes:

[0086] If not, execute step S230.

[0087] S230, determining that the water pressure in the water inlet pipe is insufficient.

[0088] S240, controlling the water purifier to stop running and returning an error message.

[0089] When it is detected that the first water pressure F1 of the water inlet pipe connected to the water purifier that has just been started is less than or equal to the preset first water pressure threshold F0, it means that the water pressure in the water inlet pipe is insufficient. In order to avoid damage to the water purifier, the operation should be stopped immediately and an error message should be returned.

[0090] In combination with the first aspect, after step S140, the following steps are further included:

[0091] If so, execute step S250.

[0092] S250, controlling the booster pump to stop working and opening the gas compensation valve, and returning a prompt message of water shortage or water outage.

[0093] After the booster pump has been running for a period of time, the second pressure F2 of the water inlet pipe is less than the negative pressure threshold (the negative pressure threshold is close to 0 or less than or equal to 0). At this time, the water inlet pipe may be seriously short of water or have no water supply. The water purifier pipe and the water pressure detector will be under greater pressure and the risk of damage is higher. At this time, the booster pump should be stopped immediately, and air should be replenished to adjust the air pressure in the water purifier to restore it and return the prompt information in time.

[0094] In combination with the first aspect, after step S160, the method further includes:

[0095] S170, determining whether the target operating power is less than a preset operating power threshold.

[0096] If so, execute step S180; if not, execute step S190.

[0097] S180, controlling the water purifier to stop running and returning an abnormal prompt message.

[0098] S190, adjusting the target operating power of the boost pump again until the target operating power is less than a preset operating power threshold.

[0099] When the second pressure is less than or equal to the first pressure threshold and greater than the negative pressure threshold, it means that the pressure in the water inlet pipe is low, but has not reached the situation of too low or negative pressure. At this time, by reducing the operating power of the booster pump and reducing the water output of the faucet, the water purifier continues to run. Compared with the prior art of directly shutting down the water purifier, the pressure of the water inlet pipe is adjusted by reducing the water output of the faucet, and the number of starts and stops of the water purifier can be reduced, thereby improving the user experience and the service life of the equipment.

[0100] After adjusting the operating frequency of the booster pump, the adjusted target operating frequency is compared with the operating power threshold. When it is less than the preset operating frequency threshold, it means that the booster pump will not work normally. At this time, the water purifier should be controlled to stop and return an abnormal prompt message.

[0101] In combination with the first aspect, a bubble detector or an air content detector is provided in the water inlet pipe, and the bubble detector and the air content detector are connected to the control unit; the method further includes:

[0102] S310, obtaining the air content in the water inlet pipe of the water purifier.

[0103] S320: If the air content is greater than a preset air content threshold, adjust the operating power of the boost pump according to a preset step size until the adjusted operating power of the boost pump is less than or equal to the operating power threshold.

[0104] S330, controlling the water purifier to stop running.

[0105] In this embodiment, in order to control the water purifier more accurately, on the basis of the above technical solution, a bubble detector or an air content detector can be added to the water inlet pipe. It can be understood that the bubble detector can detect the number of bubbles in the pipe, that is, the air content in the water inlet pipe, by the change of the dielectric constant of the liquid in the water inlet pipe. Among them, the greater the air content, the lower the water pressure. Furthermore, the bubble detector can also assist the water pressure detector in its work. When it is found that the air content in the water inlet pipe is too large or even a vacuum occurs, the system can appropriately reduce the power of the booster pump or directly shut down the booster pump to avoid damage to the water purifier.

[0106] In combination with the first aspect, the method further includes:

[0107] S410, obtaining the water flow rate of the water outlet of the water purifier.

[0108] S420, determining whether the change in water flow rate corresponds to the change rate of the operating power of the booster pump.

[0109] If not, execute step S430.

[0110] S430, returning abnormal prompt information to the water purifier.

[0111] In this application, a flow detector can also be added to the water inlet pipe. The function of the flow detector is to detect the water flow Q in the pipe. When the water purifier is working normally, the water flow Q should be proportional to the booster pump power P, that is, the larger the booster pump power P, the larger the water flow Q in the pipe. However, when the water purifier is insufficient and the air pressure in the pipe is too high, because the water flow has reached the limit, the water flow will not change even if the booster pump power is adjusted. With this property, the booster pump power can also be better adjusted. When the booster pump power P increases, if the water flow Q does not increase, it means that the water volume has reached the limit at this time and can no longer continue to increase, avoiding damage to the water purifier; on the contrary, when the booster pump power P decreases, if the water flow Q does not decrease, it means that the booster pump power still exceeds the water volume limit at this time, and the booster pump power P needs to be further reduced.

[0112] In this embodiment, the correspondence between a plurality of changes in booster pump power and changes in water flow at the water outlet is pre-stored, so that the operating status of the water purifier can be determined by determining whether the two changes correspond.

[0113] In a second aspect, the present application provides a control device for a water purifier, Figure 3 As shown, the device includes: an acquisition module 10 , a first determination module 20 , a first control module 30 , a second determination module 40 , a third determination module 50 and a second control module 60 .

[0114] The acquisition module 10 is used to start the water purifier and acquire the first water pressure of the water inlet pipe.

[0115] The first determination module 20 is used to determine whether the first water pressure is greater than a preset first water pressure threshold.

[0116] The first control module 30 is used to control the booster pump of the water purifier to operate at the operating power corresponding to the current floor when the first water pressure is greater than the preset first water pressure threshold, until the second water pressure in the water inlet pipe is less than or equal to the first water pressure threshold.

[0117] The second determination module 40 is used to determine whether the second water pressure is less than or equal to a negative pressure threshold.

[0118] The third determination module 50 is used to determine the difference between the current operating power and the preset adjustment step as the target operating power when the second water pressure is greater than the negative pressure threshold.

[0119] The second control module 60 is used to control the boost pump to operate at a target operating power.

[0120] In a third aspect, the present application provides an electronic device, Figure 4 As shown, the electronic device includes a memory 131 and a processor 130. The memory 131 is used to store computer programs, and the processor 130 runs the computer programs to enable the electronic device to perform the above method.

[0121] Furthermore, combined with Figure 4 The electronic device shown further includes a bus 132 and a communication interface 133 , and the processor 130 , the communication interface 133 and the memory 131 are connected via the bus 132 .

[0122] The memory 131 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, such as at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 133 (which may be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. may be used. The bus 132 may be an ISA bus, a PCI bus, or an EISA bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0123] The processor 130 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 130. The above processor 130 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor for execution, or a combination of hardware and software modules in the decoding processor for execution. The software module may be located in a storage medium mature in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 131, and the processor 130 reads the information in the memory 131 and completes the steps of the method of the above embodiment in combination with its hardware.

[0124] In a fourth aspect, an embodiment of the present application provides a readable storage medium, in which computer program instructions are stored. When the computer program instructions are read and executed by a processor, the above method is executed.

[0125] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0126] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0127] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0128] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0129] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for controlling a water purifier, characterized in that: The method comprises: Start the water purifier and obtain the first water pressure of the water inlet pipe; determining whether the first water pressure is greater than a preset first water pressure threshold; If yes, control the booster pump to operate at the operating power corresponding to the current floor until the second water pressure in the water inlet pipe is less than or equal to the first water pressure threshold; determining whether the second water pressure is less than or equal to a negative pressure threshold; If not, the difference between the current operating power and the preset adjustment step is determined as the target operating power; The boost pump is controlled to operate at the target operating power.

2. The method according to claim 1, characterized in that The steps of controlling the booster pump of the water purifier to operate at the operating power corresponding to the current floor include: Get the current floor information; According to a preset mapping relationship, obtaining the operating power corresponding to the current floor information; The boost pump is controlled to operate at the operating power.

3. The method according to claim 1, characterized in that After the step of determining whether the first water pressure is greater than a preset first water pressure threshold, the method further includes: If not, it is determined that the water pressure of the water inlet pipe is insufficient; Control the water purifier to stop running and return an error message.

4. The method according to claim 1, characterized in that: After the step of determining whether the second water pressure is less than or equal to the negative pressure threshold, the method further includes: If so, the booster pump is controlled to stop working and the gas compensation valve is opened, and a prompt message of water shortage or water outage is returned.

5. The method according to claim 1, characterized in that After the step of controlling the boost pump to operate at the target operating power, the method further includes: Determining whether the target operating power is less than a preset operating power threshold; If yes, control the water purifier to stop running and return an abnormal prompt message; If not, the target operating power of the boost pump is adjusted again until the target operating power is less than a preset operating power threshold.

6. The method according to claim 1, characterized in that A bubble detector or an air content detector is provided in the water inlet pipe; the method further comprises: Obtain the air content in the water inlet pipe of the water purifier; If the air content is greater than a preset air content threshold, adjusting the operating power of the boost pump according to a preset step size until the adjusted operating power of the boost pump is less than or equal to the operating power threshold; Control the water purifier to stop running.

7. The method according to claim 1, characterized in that The method further comprises: Get the water flow rate of the water outlet of the water purifier; determining whether the change in the water flow rate corresponds to the change in the operating power of the booster pump; If not, an abnormal prompt message is returned to the water purifier.

8. A control device for a water purifier, characterized in that: The device comprises: An acquisition module, used for starting the water purifier and acquiring a first water pressure of a water inlet pipe; A first determination module, used to determine whether the first water pressure is greater than a preset first water pressure threshold; a control module, configured to control the booster pump of the water purifier to operate at an operating power corresponding to the current floor when the first water pressure is greater than a preset first water pressure threshold, until the second water pressure in the water inlet pipe is less than or equal to the first water pressure threshold; A second determination module, used to determine whether the second water pressure is less than or equal to a negative pressure threshold; A third determination module is used to determine the difference between the current operating power and the preset adjustment step as the target operating power under the negative pressure threshold; The second control module is used to control the boost pump to operate at the target operating power.

9. An electronic device, characterized in that: The electronic device comprises a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the electronic device to perform the method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium stores computer program instructions, and when the computer program instructions are read and executed by a processor, the method according to any one of claims 1 to 7 is executed.

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