Control method of water consumption equipment and water consumption equipment

Abstract

The invention relates to the field of water utilization equipment, particularly provides a control method of water utilization equipment and the water utilization equipment, and aims to solve the problem that existing water inlet equipment cannot find and accurately judge the reason of abnormal water inlet in time. In order to achieve the purpose, the control method comprises the steps that a water inlet valve is controlled to be opened; after the water inlet valve is opened, a first pressure value in the water inlet passage is obtained; calculating a difference value between the first pressure value and a second pressure value when water does not enter the water inlet passage; determining a preset range of the difference value; and based on a preset range, determining a water inflow abnormity reason. Under the condition that the technical scheme is adopted, the water inlet abnormity reason can be determined. And on the other hand, detection can be quickly carried out after the water inlet valve is opened, so that water inlet abnormity reasons can be found in time, the water inlet abnormity recognition speed and accuracy are improved, problem diagnosis and treatment are timely and effective, and the stability and reliability of the water inlet system of the water equipment are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water-using equipment, and particularly provides a control method of water-using equipment and water-using equipment. BACKGROUND

[0002] During the operation of various water-using equipment (such as water supply systems, washing machines, dishwashers, etc.), it is crucial to accurately monitor and control the water inlet state. Water inlet abnormalities, such as clogging of the water inlet valve or forgetting to open the faucet, can lead to decreased equipment efficiency, increased energy consumption, or even safety accidents.

[0003] Traditional water inlet control methods mainly rely on simple flow monitoring or sound monitoring, lacking detailed identification and analysis capabilities for abnormal states. This method may not be able to timely discover or accurately determine the cause of water inlet abnormalities in actual application, thereby affecting the stability and safety of the entire system.

[0004] Accordingly, there is a need in the art for a new control method of water-using equipment and water-using equipment to solve the above problems. SUMMARY

[0005] The present application aims to solve the above technical problems, i.e., to solve the problem that existing water inlet equipment cannot timely discover and accurately determine the cause of water inlet abnormalities.

[0006] In a first aspect, the present application provides a control method of water-using equipment, characterized in that the control method comprises: controlling a water inlet valve to open; after the water inlet valve opens, obtaining a first pressure value in a water inlet passage; calculating a difference between the first pressure value and a second pressure value when the water inlet passage is not in water; determining a preset range in which the difference falls; and determining the cause of water inlet abnormalities based on the preset range.

[0007] In the above technical solution, after the water inlet valve opens, water flow is allowed to enter the water inlet passage, and then the first pressure value in the water inlet passage is obtained, which reflects the actual pressure condition in the water inlet passage after the water inlet valve opens. Then, the difference between the first pressure value and the second pressure value when the water inlet passage is not in water is calculated, and the second pressure value is used as a reference value, i.e., the pressure value when there is no water flow in the water inlet passage. The difference can reflect the degree of change in water flow pressure in the water inlet passage. Since different causes of water inlet abnormalities will result in different degrees of change in water flow pressure, the calculated pressure difference is compared with the preset pressure range, and the cause of water inlet abnormalities can be determined according to the preset range in which the difference falls. On the other hand, the control method of the present application can quickly detect after the water inlet valve opens, thereby timely discovering the cause of water inlet abnormalities, improving the identification speed and accuracy of water inlet abnormalities, making problem diagnosis and processing timely and effective, and thereby improving the stability and reliability of the water inlet system of the water-using equipment.

[0008] In the optional technical solution of the control method of the water-using device, before the step of determining the preset range in which the difference value is located, the control method further comprises: comparing the difference value with a first preset value and a second preset value; and the step of determining the water inlet abnormality cause based on the preset range further comprises: when the difference value is less than the first preset value and greater than or equal to the second preset value, determining that the water inlet valve is blocked.

[0009] When no water is inlet, the pressure sensor detects the atmospheric pressure (e.g., when there is no water in the water inlet passage) or the static water pressure (e.g., when there is water in the water inlet passage). After water is inlet, the pressure sensor detects the pressure generated when the water flow passes through the pipeline, which is usually provided by the pump of the water supply system or the tap water system. According to Bernoulli's principle, the increase of the flow rate is accompanied by the increase of the dynamic pressure when the water flow passes through the pipeline. When the difference value is less than the first preset value and greater than or equal to the second preset value, it can be inferred that the pressure in the water inlet passage changes, which proves that there is water flow through the water inlet passage but the flow rate is small, so it is determined that the water inlet valve is blocked.

[0010] In the optional technical solution of the control method of the water-using device, the step of determining the water inlet abnormality cause based on the preset range further comprises: when the difference value is less than the second preset value, determining that the faucet is not opened.

[0011] When the difference value is less than the second preset value, it can be inferred that the pressure change in the water inlet passage is very small, which will not occur when there is water flow through the water inlet passage, so it can be determined that the faucet is not opened.

[0012] In the optional technical solution of the control method of the water-using device, before the step of controlling the water inlet valve to be opened, the control method further comprises: obtaining the pressure value in the water inlet passage as the second pressure value when no water is inlet.

[0013] In the case of adopting the above-mentioned solution, since the second pressure value is obtained in real time, the accuracy of the water inlet abnormality cause judgment can be ensured.

[0014] In the optional technical solution of the control method of the water-using device, the second pressure value is a preset value.

[0015] In the optional technical solution of the control method of the water-using device, the water-using device pre-stores a mapping relationship between positions and pressure values, and the water-using device is in communication connection with a server; before the step of calculating the difference value between the first pressure value and the second pressure value when no water is inlet in the water inlet passage, the control method further comprises: obtaining the current position through the server; and in the mapping relationship, determining the pressure value corresponding to the current position as the second pressure value when no water is inlet.

[0016] The pressure in the water inlet passage often varies with geographical location. By using a mapping relationship between location and pressure value, a more accurate pressure reference value can be set for each specific location, thereby improving the accuracy of water inlet abnormality detection. The second pressure value can be dynamically adjusted according to changes in location, which is particularly suitable for mobile water-using equipment or equipment used in multiple different locations.

[0017] In an optional technical solution of the control method of the water-using equipment, the step of "obtaining a first pressure value in the water inlet passage after the water inlet valve is opened" further includes: obtaining the first pressure value in the water inlet passage after the water inlet valve is opened for a preset time.

[0018] In the case of using the above technical solution, the above-mentioned preset time can ensure that water has entered the water inlet passage in the case of opening the faucet, thereby improving the accuracy of judgment.

[0019] In an optional technical solution of the control method of the water-using equipment, after the step of "determining that the water inlet valve is blocked", the control method further includes: sending a first reminder information to prompt that the water inlet valve is blocked.

[0020] In the case of using the above technical solution, the user can know in time what the cause of the water inlet abnormality is, so as to take targeted measures to avoid affecting the washing time.

[0021] In an optional technical solution of the control method of the water-using equipment, after the step of "determining that the faucet is not opened", the control method further includes: sending a second reminder information to prompt that the faucet is not opened.

[0022] In the case of using the above technical solution, the user can know in time what the cause of the water inlet abnormality is, so as to take targeted measures to avoid affecting the washing time.

[0023] In another aspect, the present application also provides a water-using equipment, which comprises a processor; a memory adapted to store a plurality of program codes adapted to be loaded and run by the processor to execute the control method of the water-using equipment described in any of the above embodiments.

[0024] In the case of using the above technical solution, the water-using equipment can accurately determine whether the water inlet abnormality is caused by the faucet not being opened or the water inlet valve being blocked. Since it can be determined whether the water inlet abnormality is caused in a short time, the user can be reminded in time to promote the user to repair or open the faucet as soon as possible, thereby avoiding the extension of the washing time. BRIEF DESCRIPTION OF DRAWINGS

[0025] The preferred embodiments of the present application will be described below with reference to the accompanying drawings, in which:

[0026] Figure 1 is a structural schematic diagram of a water-using device of the present application;

[0027] Figure 2 is a main flow chart of a control method of a water-using device of the present application;

[0028] Figure 3 is a possible logic diagram of a control method of a water-using device of the present application.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1 - water-using device; 11 - water inlet; 2 - water inlet pipe; 3 - water inlet valve; 4 - pressure sensor. DETAILED DESCRIPTION

[0031] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can make adjustments as needed to adapt to specific application occasions, which do not deviate from the principles of the present application and are within the protection scope of the present application.

[0032] In order to solve the problem that the existing water inlet device cannot timely find and accurately judge the cause of water inlet abnormality, the present application provides a control method of a water-using device, which can be a washing machine, a washing and drying integrated machine, a shoe washing machine, a sock washing machine, a dishwasher, a water purifier or a water supply system, etc., as shown in Figure 1 The water inlet valve 3 can be connected with the water inlet 11 of the water-using device 1 through the water inlet pipe 2, or the water inlet valve 3 can be directly connected with the water inlet 11, etc. The pressure sensor 4 can be arranged on the water inlet pipe 2 or the water inlet 11, etc. to detect the pressure value in the water inlet passage. It can be understood that the water inlet passage can be a passage in the water inlet pipe, or a passage on the water inlet, etc. as long as the water can flow to the passage after passing through the water inlet valve 3.

[0033] As a possible embodiment, the washing device further comprises a communication module, which can be Wifi, Bluetooth, cellular network (such as 2G, 3G, 4G and 5G network), Zigbee or fiber communication, etc. The communication module is connected with the server and / or mobile terminal to realize mutual communication with the mobile terminal and / or server.

[0034] The water-using device of the present application also comprises some other known structures, such as a processor and a memory, etc., wherein the memory comprises but is not limited to a random memory, a flash memory, a read-only memory, a programmable read-only memory, a volatile memory, a non-volatile memory, a serial memory, a parallel memory or a register, etc., and the processor comprises but is not limited to a CPLD / FPGA, a DSP, an ARM processor, a MIPS processor, etc. In order not to unnecessarily obscure the embodiments of the present disclosure, these known structures are not shown in the drawings. Among them, the memory of the present application is adapted to store a plurality of program codes, which are adapted to be loaded and run by the processor to execute the control method of the water-using device of the present application.

[0035] The control method of the water-using device of the present application is described below. As shown in Figure 2 The control method of the water-using device of the present application comprises the following steps:

[0036] Step S100: Control the water inlet valve to open.

[0037] The water inlet valve is connected with the faucet. After the water inlet valve is opened, if the faucet is opened, water will enter the water inlet passage from the water inlet valve.

[0038] Step S200: Obtain a first pressure value in the water inlet passage after the water inlet valve is opened.

[0039] The first pressure value can be obtained by the pressure sensor described above. As a possible implementation, step S200 further comprises: obtaining the first pressure value in the water inlet passage after the water inlet valve is opened for a preset time. Among them, the above-mentioned preset time can ensure that the water has entered the water inlet passage under the condition that the faucet is opened. The specific value of the preset time can be set to different values according to the setting position of the pressure sensor, the different water flow rate, etc. For example, the pressure sensor is 5 centimeters away from the water inlet end of the water inlet passage, and the water flow rate is generally 1 meter / second, the preset time can be set to be greater than 0.05 seconds, in order to leave time margin to adapt to the change of parameters, the preset time can be set to 2-10 seconds, preferably 3 seconds.

[0040] Step S300: Calculate the difference between the first pressure value and a second pressure value when the water inlet passage is not watered.

[0041] That is, the difference = the first pressure value - the second pressure value.

[0042] Step S400: Determine the preset range in which the difference value is located.

[0043] As a possible implementation, the control method further comprises comparing the difference value with the first preset value and the second preset value. For example, the difference value is first compared with the first preset value. When the difference value is greater than or equal to the first preset value, it is determined that the difference value is in a preset range greater than or equal to the first preset value. When the difference value is less than the first preset value, the comparison with the second preset value is continued. When the difference value is greater than or equal to the second preset value, it is determined that the difference value is in a preset range less than the first preset value and greater than or equal to the second preset value. When the difference value is less than the second preset value, it is determined that the difference value is in a preset range less than the second preset value. Of course, the difference value can first be compared with the second preset value. When the difference value is less than the second preset value, it is determined that the difference value is in a preset range less than the second preset value. When the difference value is greater than or equal to the second preset value, the comparison with the first preset value is continued. When the difference value is less than the first preset value, it is determined that the difference value is in a preset range greater than or equal to the second preset value and less than the first preset value. When the difference value is greater than or equal to the first preset value, it is determined that the difference value is in a preset range greater than or equal to the first preset value. Alternatively, the difference value is compared with the first preset value and the second preset value at the same time to determine the preset range in which the difference value is located. These adjustments do not deviate from the principles of the present application and are within the protection scope of the present application. The second preset value is less than the first preset value.

[0044] Step S500: determining the water inlet abnormality reason based on the preset range.

[0045] As a possible implementation, when the difference value is less than the first preset value and greater than or equal to the second preset value, it is determined that the water inlet valve is blocked. When the difference value is less than the second preset value, it is determined that the faucet is not opened.

[0046] When there is no water inlet, the pressure sensor detects the atmospheric pressure (e.g., no water in the water inlet passage) or the static water pressure (e.g., water in the water inlet passage). After the water inlet, the pressure sensor detects the pressure generated when the water flow passes through the pipeline. This pressure is usually provided by the pump of the water supply system or the tap water system. According to Bernoulli's principle, the increase in flow rate is accompanied by an increase in dynamic pressure when the water flow passes through the pipeline. When the difference value is less than the first preset value and greater than or equal to the second preset value, it can be inferred that the pressure in the water inlet passage changes, which proves that there is still water flow through the water inlet passage but the flow is small, so it is determined that it is caused by the water inlet valve being blocked. When the difference value is less than the second preset value, it can be inferred that the pressure change in the water inlet passage is very small, which will not occur in the case of water flow through the water inlet passage. Therefore, it can be determined that it is caused by the faucet not being opened.

[0047] As a possible implementation, when the difference value is greater than or equal to the first preset value, it is proved that the water inlet is normal.

[0048] The first preset value can be determined based on the difference value, i.e., the pressure change value, under the condition of the water inlet valve being blocked, and the second preset value can be determined based on the difference value, i.e., the pressure change value, under the condition of the faucet not being opened. The first preset value and the second preset value are not fixed. For example, for different water inlet pipe diameters and water flow rates, the first preset value and the second preset value can be set differently to adapt to various operating conditions and requirements. The first preset value can be selected in the range of 0.1 MPa-0.4 MPa, which comprehensively considers the normal working pressure of the water inlet system of most water-using equipment and the critical pressure of the pressure drop that can occur when the water inlet valve is slightly blocked. The second preset value can be set between 0 MPa-0.05 MPa, which is a lower range used to identify the condition when the faucet is not fully opened, reflecting a state of almost no water flow. Assuming that the first preset value is set to 0.3 MPa and the second preset value is set to 0.02 MPa. After the water inlet valve is opened, if the measured difference value is 0.25 MPa, since this value is less than the first preset value but greater than the second preset value, it can be determined that the water inlet valve is blocked. If the difference value is less than 0.02 MPa, such as only 0.01 MPa, it indicates that the faucet can not be opened.

[0049] The determination method of the second pressure value of the present application will be introduced below.

[0050] As a first possible determination method, the second pressure value is a preset value. The second pressure value is the pressure value when the water inlet passage is not supplied with water. This second pressure value represents the pressure level in the water inlet passage when there is no water source flowing in, and is used as a reference value for comparison with the first pressure value after water is supplied. For example, when the water inlet valve is closed, at this time since there is no water flowing, the average value of the multi-point pressure value measured at this time can be taken as the second pressure value. As a possible implementation, the second pressure value is between 0.1 MPa-0.2 MPa, and preferably 0.1 MPa.

[0051] As a second possible determination method, before the step S100 of "controlling the water inlet valve to open", the control method of the present application further comprises: obtaining the pressure value in the water inlet passage as the second pressure value when there is no water. That is, the second pressure value is obtained in real time. Thus, the accuracy of the water inlet abnormality cause determination can be ensured.

[0052] As a third possible determination method, the water using device pre-stores a mapping relationship between locations and pressure values. For example, the location is a city name, and the mapping relationship includes: Beijing-0.1 MPa; Lhasa-0.07 MPa; Kunming-0.08 MPa, and the like. The control method of the present application further includes: obtaining the current location through the server; and determining the pressure value corresponding to the current location in the mapping relationship as the second pressure value. The pressure in the water inlet passage often changes with the geographical location. By using the mapping relationship between the location and the pressure value, a more accurate pressure reference value can be set for each specific location, thereby improving the accuracy of the water inlet abnormality detection. Moreover, the second pressure value can be dynamically adjusted according to the change of the location, and is particularly suitable for a mobile water using device or a device used in multiple different locations. Specifically, when the location obtained through the server is Beijing, the pressure value corresponding to Beijing, i.e., 0.1 MPa, is taken as the second pressure value. Of course, the above is not a limitation, and the location can also be the height. Each height corresponds to a pressure value, and the higher the height, the lower the pressure value. Thus, the corresponding pressure value can be determined by obtaining the height, and taken as the second pressure value. These adjustments do not deviate from the principle of the present application, and are within the protection scope of the present application.

[0053] It should be noted that the present application does not limit the specific form of the above mapping relationship. For example, a mapping table (Map), a key-value pair (Key-Value), a database table, or a more complex data structure can be used. These data structures can be selected according to the complexity of the application and the required flexibility. For example, the mapping table is a data structure for storing key-value pairs, which allows quick retrieval of the value (pressure value) associated with a specific key (such as the city name). The key-value pair is a simple data representation, with each key corresponding to a value. For applications that need to store a large number of locations and corresponding pressure values, using a database table to organize these data is an effective method.

[0054] As a possible implementation, after the step of "determining that the water inlet valve is blocked", the control method of the present application further includes: sending a first reminder information to prompt that the water inlet valve is blocked.

[0055] As a possible implementation, after the step of "determining that the faucet is not opened", the control method of the present application further includes: sending a second reminder information to prompt that the faucet is not opened.

[0056] The form of the first reminding information and the second reminding information can include, but is not limited to, voice type information, character type information, light type information, etc.; the subject of sending the reminding information can include, but is not limited to, the water-using equipment and the terminal device, etc.; the specific reminding mode can be a combination of any of the above reminding forms and the reminding subject, as long as the effect of reminding the user can be achieved, and the person skilled in the art can select according to the specific needs in actual application, which is not limited specifically herein. The voice type information can send the reminding information to the user in the form of voice broadcast, or remind the user in the form of a beep prompt; the character type information can send the reminding information to the user in the form of a pop-up floating window or scrolling play on the display screen; the light type information can be a long-time light or intermittent light. The above-mentioned setting of the reminding mode is only exemplary, and can be selected according to actual needs in actual application. The first reminding information and the second reminding information should have different forms, for example, when the first reminding information and the second reminding information are both voice type reminding information, the first reminding information can be the voice of "water inlet valve blockage", and the second reminding information can be the voice information of "faucet not opened"; or when the first reminding information and the second reminding information are both character information displayed on the display screen, the first reminding information can be the character information of "water inlet valve blockage", and the second reminding information can be the character information of "faucet not opened"; when the first reminding information and the second reminding information are both light type reminding information, the first reminding information can be a red light, and the second reminding information can be a yellow light.

[0057] In summary, through the above method, the present application can determine whether the water inlet abnormality is caused by the faucet not being opened or the water inlet valve being blocked. The cause of the water inlet abnormality can be determined in a short time, the user is reminded in time, and the washing time is avoided from being prolonged.

[0058] As a possible implementation, as shown in Figure 3 The control method of the water-using equipment of the present application includes the following steps:

[0059] Step S601: acquiring a second pressure value in the water inlet passage.

[0060] Step S602: controlling the water inlet valve to be opened.

[0061] Step S603: acquiring a first pressure value in the water inlet passage after the water inlet valve is opened for a preset time.

[0062] Step S604: calculating the difference between the first pressure value and the second pressure value.

[0063] Step S605: determining whether the difference is less than a first preset value. If yes, step S607 is executed, and if no, step S606 is executed.

[0064] Step S606: determining that the water inlet is normal, and executing the washing program.

[0065] Step S607: determining whether the difference is less than a second preset value. If yes, executing step S608, and if no, executing step S609.

[0066] Step S608: determining that the faucet is not opened, and sending a second reminder information.

[0067] Step S609: determining that the water inlet valve is blocked, and sending a first reminder information.

[0068] The technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will all fall within the protection scope of the present application.

Claims

1. A control method of a water-using apparatus, characterized by, The control method comprises: controlling the water inlet valve to open; after the water inlet valve opens, obtaining a first pressure value in the water inlet passage; calculating a difference between the first pressure value and a second pressure value when the water inlet passage is not filled with water; determining a preset range in which the difference is located; based on the preset range, determining the cause of the water inlet abnormality.

2. The control method of the water-using device according to claim 1, wherein, before the step of "determining a preset range in which the difference is located", the control method further comprises: comparing the difference with a first preset value and a second preset value; the step of "based on the preset range, determining the cause of the water inlet abnormality" further comprises: when the difference is less than the first preset value and greater than or equal to the second preset value, determining that the water inlet valve is blocked.

3. The control method of the water-using device according to claim 2, wherein, the step of "based on the preset range, determining the cause of the water inlet abnormality" further comprises: when the difference is less than the second preset value, determining that the faucet is not opened.

4. The control method of the water-using device according to claim 1, wherein, before the step of "controlling the water inlet valve to open", the control method further comprises: obtaining a pressure value in the water inlet passage as the second pressure value when the water inlet passage is not filled with water.

5. The control method of the water-using device according to claim 1, wherein, the second pressure value is a preset value.

6. The control method of the water-using device according to claim 1, wherein, the water-using device pre-stores a mapping relationship between positions and pressure values, and the water-using device is in communication connection with a server; before the step of "calculating a difference between the first pressure value and a second pressure value when the water inlet passage is not filled with water", the control method further comprises: obtaining a current position through the server; in the mapping relationship, determining a pressure value corresponding to the current position as the second pressure value when the water inlet passage is not filled with water.

7. The control method of the water-using device according to claim 1, wherein, the step of "after the water inlet valve opens, obtaining a first pressure value in the water inlet passage" further comprises: after the water inlet valve opens for a preset time, obtaining the first pressure value in the water inlet passage.

8. The control method of the water-using device according to claim 2, wherein, after the step of "determining that the water inlet valve is blocked", the control method further comprises: sending a first reminder information to prompt that the water inlet valve is blocked.

9. The control method of the water-using device according to claim 3, wherein, after the step of "determining that the faucet is not opened", the control method further comprises: sending a second reminder information to prompt that the faucet is not opened.

10. A water-using device, comprising: a processor; a memory adapted to store a plurality of program codes, the program codes being adapted to be loaded and run by the processor to execute the control method of the water-using device according to any one of claims 1 to 9. ​ ​ ​ ​ ​ ​ ​ ​

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