Instantaneous water heater and water outlet curve correction method and device thereof, and storage medium

Abstract

The application discloses a kind of instant hot water dispenser and its water outlet curve correction method and device, storage medium, wherein the water outlet curve correction method of instant hot water dispenser includes: obtaining the current driving parameter of water pump in instant hot water dispenser, and obtain the current working parameter of instant hot water dispenser;Current flow rate of water pump is determined according to current working parameter, and current curve coordinate of water pump is determined according to current driving parameter and current flow rate of water pump;According to current curve coordinate, at least part of line segment corresponding to function coefficient of the water outlet curve stored in instant hot water machine is modified, to correct the water outlet curve stored in instant hot water machine.By this, the water outlet curve correction method of instant hot water dispenser of the application embodiment can correct the water outlet curve of water dispenser, so that water dispenser has accurate water outlet curve, guarantee the water output of water dispenser is accurate, to improve the temperature control effect of water dispenser.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an instant hot water dispenser and its water output curve correction method and device, and storage medium. Background Technology

[0002] Instant hot water dispensers have advantages such as energy saving, small size, low cost, and fast heating, and are increasingly used by many companies and families. Users can set the water temperature and water volume as needed. The temperature control module and volume calculation module inside the water dispenser quickly and accurately reach the target temperature by heating and adjusting the water flow rate to meet the user's water needs.

[0003] However, in actual product use, due to limitations in manufacturing processes, the water flow velocity tolerance of the water pump under the same drive voltage is ±20%. For the quantitative water dispensing module of the water dispenser, because the control motherboard cannot know the correspondence between the drive value and water flow velocity for each machine, the control software can only use the default drive value-water flow velocity curve to calculate the water volume. However, because the tolerance of the water pump is too large, the characteristic curve of the water pump of each water dispenser may deviate significantly from the default curve, thus causing inaccurate quantitative water dispensing accuracy of the water dispenser. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this invention is to provide a method for correcting the water outlet curve of an instant hot water dispenser. This method can correct the water outlet curve of the dispenser to ensure an accurate water outlet curve, guaranteeing accurate water output and thus improving the temperature control effect of the dispenser.

[0005] The second objective of this invention is to provide a water output curve correction device for an instant hot water dispenser.

[0006] The third objective of this invention is to provide an instant hot water dispenser.

[0007] The fourth objective of this invention is to provide a computer-readable storage medium.

[0008] To achieve the above objectives, a first aspect of the present invention provides a method for correcting the water outlet curve of an instant hot water dispenser. The method includes: acquiring the current driving parameters of the water pump in the instant hot water dispenser and acquiring the current operating parameters of the instant hot water dispenser; determining the current flow rate of the water pump based on the current operating parameters, and determining the current curve coordinates of the water pump based on the current driving parameters and the current flow rate; and correcting the function coefficients corresponding to at least a portion of the line segments of the water outlet curve stored in the instant hot water dispenser based on the current curve coordinates, thereby correcting the water outlet curve stored in the instant hot water dispenser.

[0009] The water outlet curve correction method for instant hot water dispensers according to embodiments of the present invention first obtains the current driving parameters and current operating parameters of the water pump in the instant hot water dispenser, and determines the current flow rate of the water pump based on the current operating parameters. Then, the current driving parameters and current flow rate are used as the current curve coordinates of the water pump. Next, the function system corresponding to at least a portion of the line segments of the water outlet curve stored in the instant hot water dispenser is corrected based on these current curve coordinates, thereby correcting the water outlet curve stored in the instant hot water dispenser. Therefore, the water outlet curve correction method for instant hot water dispensers according to embodiments of the present invention can correct the water outlet curve of the water dispenser, so that the water dispenser has an accurate water outlet curve, ensuring accurate water output and thus improving the temperature control effect of the water dispenser.

[0010] In some embodiments of the present invention, the current operating parameters include the average power and average temperature rise of the instant hot water dispenser over a preset time period.

[0011] In some embodiments of the present invention, the current flow rate of the water pump is calculated according to the following formula: Among them, v 当前 The current flow rate is Pn, the average power is c, the specific heat capacity of water is ρ, the density of water is ΔT, and the average temperature rise is ΔT.

[0012] In some embodiments of the present invention, the current operating parameters include the average power supply voltage and average temperature rise of the instant hot water dispenser within a preset time period, as well as the rated voltage and rated power of the instant hot water dispenser. Determining the current flow rate of the water pump based on the current operating parameters includes: determining the equivalent temperature rise based on the average power supply voltage, the average temperature rise, and the rated voltage; and determining the current flow rate of the water pump based on the equivalent temperature rise and the rated power.

[0013] In some embodiments of the present invention, the equivalent temperature rise is calculated according to the following formula: Among them, △T 等效 U is the equivalent temperature rise, and U is the average supply voltage. 额 The rated voltage is ΔT, and the average temperature rise is ΔT.

[0014] In some embodiments of the present invention, the preset time includes a first time period and a second time period with time overlap, wherein U is the average power supply voltage of the instant hot water dispenser in the first time period, and ΔT is the average temperature rise of the instant hot water dispenser in the second time period.

[0015] In some embodiments of the present invention, the current flow rate of the water pump is calculated according to the following formula: Among them, △T 等效 For the equivalent temperature rise, v 当前For the current flow rate, P 额 Where is the rated power, c is the specific heat capacity of water, and ρ is the density of water.

[0016] In some embodiments of the present invention, the function coefficients corresponding to at least a portion of the water outlet curves stored in the instant hot water dispenser are corrected according to the current curve coordinates, including: determining the coordinates of a reference point corresponding to at least one of the at least a portion of the line segments according to the current curve coordinates; determining the function coefficients to be updated according to the current curve coordinates and the reference point coordinates; and updating the function coefficients corresponding to the at least a portion of the line segments according to the function coefficients to be updated.

[0017] In some embodiments of the present invention, determining the function coefficients to be updated based on the current curve coordinates and the reference point coordinates includes: forming a straight line segment from the current curve coordinates and the reference point coordinates, and calculating the function coefficients corresponding to the straight line segment; and using the function coefficients corresponding to the straight line segment as the function coefficients to be updated.

[0018] In some embodiments of the present invention, the reference point coordinates include high point reference point coordinates and low point reference point coordinates, and the function coefficients to be updated include the first function coefficients corresponding to the first straight line segment formed by the current curve coordinates and the high point reference point coordinates, and the second function coefficients corresponding to the second straight line segment formed by the current curve coordinates and the low point reference point coordinates.

[0019] In some embodiments of the present invention, updating the function coefficients corresponding to at least a portion of the line segments according to the function coefficients to be updated includes: updating the function coefficients corresponding to the line segments between the current curve coordinates and the high point reference point coordinates according to the first function coefficients, and updating the function coefficients corresponding to the line segments between the current curve coordinates and the low point reference point coordinates according to the second function coefficients.

[0020] In some embodiments of the present invention, the reference point coordinates include high point reference point coordinates and low point reference point coordinates. Determining the function coefficients to be updated based on the current curve coordinates and the reference point coordinates includes: forming a first straight line segment from the current curve coordinates and the high point reference point coordinates, and calculating the function coefficients corresponding to the first straight line segment; substituting the function coefficients corresponding to the first straight line segment into a water outlet curve segment function that is compatible with the current curve coordinates to obtain updated coordinates; forming a third straight line segment from the updated coordinates and the low point reference point coordinates, and calculating the function coefficients corresponding to the third straight line segment; and using the function coefficients corresponding to the first straight line segment and the function coefficients corresponding to the third straight line segment as the function coefficients to be updated.

[0021] In some embodiments of the present invention, updating the function coefficients corresponding to at least a portion of the line segments according to the function coefficients to be updated includes: updating the function coefficients of the water outlet curve segment corresponding to the high point reference point coordinates, the function coefficients of the water outlet curve segment adapted to the current curve coordinates, and the function coefficients of the corresponding water outlet curve segment between the current curve coordinates and the high point reference point coordinates according to the function coefficients corresponding to the first straight line segment; updating the function coefficients of the water outlet curve segment corresponding to the low point reference point coordinates, and the function coefficients of the corresponding water outlet curve segment between the current curve coordinates and the low point reference point coordinates according to the function coefficients corresponding to the third straight line segment.

[0022] To achieve the above objectives, a second aspect of the present invention provides a water outlet curve correction device for an instant hot water dispenser. The device includes an acquisition module for acquiring the current driving parameters of the water pump in the instant hot water dispenser and acquiring the current operating parameters of the instant hot water dispenser; a determination module for determining the current flow rate of the water pump based on the current operating parameters and determining the current curve coordinates of the water pump based on the current driving parameters and the current flow rate; and a correction module for correcting the function coefficients corresponding to at least a portion of the line segments of the water outlet curve stored in the instant hot water dispenser based on the current curve coordinates, thereby correcting the water outlet curve stored in the instant hot water dispenser.

[0023] The water outlet curve correction device for an instant hot water dispenser according to an embodiment of the present invention includes an acquisition module, a determination module, and a correction module. First, the acquisition module acquires the current driving parameters and current operating parameters of the water pump in the instant hot water dispenser. Then, the determination module determines the current flow rate of the water pump based on the current operating parameters and uses the current driving parameters and current flow rate as the current curve coordinates of the water pump. Finally, the correction module corrects at least a portion of the line segments corresponding to the function system of the water outlet curve stored in the instant hot water dispenser based on these current curve coordinates, thereby correcting the water outlet curve stored in the instant hot water dispenser. Therefore, the water outlet curve correction device for an instant hot water dispenser according to this embodiment of the present invention can correct the water outlet curve of the water dispenser, ensuring an accurate water outlet curve, guaranteeing accurate water output, and thus improving the temperature control effect of the water dispenser.

[0024] To achieve the above objectives, a third aspect of the present invention provides an instant hot water dispenser, which includes a memory, a processor, and a water outlet curve correction program for the instant hot water dispenser stored in the memory and executable on the processor. When the processor executes the water outlet curve correction program for the instant hot water dispenser, it implements the water outlet curve correction method for the instant hot water dispenser according to the above embodiment.

[0025] The instant hot water dispenser of this invention includes a memory and a processor. The processor executes a water outlet curve correction program stored in the memory, which can correct the water outlet curve of the dispenser to ensure that the dispenser has an accurate water outlet curve, thereby ensuring accurate water output and improving the temperature control effect of the dispenser.

[0026] To achieve the above objectives, a fourth aspect of the present invention provides a computer-readable storage medium storing a water outlet curve correction program for an instant hot water dispenser. When executed by a processor, the water outlet curve correction program for the instant hot water dispenser implements the water outlet curve correction method for the instant hot water dispenser as described in the above embodiments.

[0027] The computer-readable storage medium of this invention executes a water outlet curve correction program for an instant hot water dispenser stored thereon via a processor, which can correct the water outlet curve of the water dispenser to ensure that the water dispenser has an accurate water outlet curve, thereby ensuring accurate water output and improving the temperature control effect of the water dispenser.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] Figure 1 This is a flowchart of a water outlet curve correction method for an instant hot water dispenser according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the outlet water temperature of an instant hot water dispenser according to an embodiment of the present invention;

[0031] Figure 3 This is a flowchart of a water outlet curve correction method for an instant hot water dispenser according to an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the water output curve of an instant hot water dispenser according to a specific embodiment of the present invention;

[0033] Figure 5 This is a flowchart of a water outlet curve correction method for an instant hot water dispenser according to an embodiment of the present invention;

[0034] Figure 6 This is a flowchart of a water outlet curve correction method for an instant hot water dispenser according to an embodiment of the present invention;

[0035] Figure 7 This is a flowchart of a water outlet curve correction method for an instant hot water dispenser according to a specific embodiment of the present invention;

[0036] Figure 8 This is a structural block diagram of a water outlet curve correction device for an instant hot water dispenser according to an embodiment of the present invention.

[0037] Figure 9 This is a structural block diagram of an instant hot water dispenser according to an embodiment of the present invention;

[0038] Figure 10 This is a partial structural schematic diagram of instant hot water according to an embodiment of the present invention;

[0039] Figure 11 This is a partial structural schematic diagram of instant hot water according to an embodiment of the present invention. Detailed Implementation

[0040] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0041] The following description, with reference to the accompanying drawings, describes an instant hot water dispenser and its water output curve correction method and apparatus, as well as a storage medium, according to embodiments of the present invention.

[0042] Figure 1 This is a flowchart of a water output curve correction method for an instant hot water dispenser according to an embodiment of the present invention.

[0043] like Figure 1 As shown, this invention proposes a method for correcting the water output curve of an instant hot water dispenser. The correction method includes the following steps:

[0044] S10: Obtain the current driving parameters of the water pump in the instant hot water dispenser, and obtain the current operating parameters of the instant hot water dispenser.

[0045] Specifically, because instant hot water dispensers heat water quickly, both slow and fast water dispensing will affect the heating temperature. For example, when the drinking water needs to be heated to 90 degrees Celsius, the dispenser has a corresponding water dispensing speed for that temperature. The water dispensing speed can be controlled by the driving voltage of the water pump. However, due to manufacturing errors or different usage environments, the water pump may not output the preset water volume, resulting in a difference between the water temperature and the target temperature.

[0046] Since the water output of the water pump is determined by the pump's drive voltage, whether the error is caused by process error or different usage environment, this embodiment needs to obtain the real-time drive voltage of the water pump in the instant hot water dispenser when correcting the water output curve. That is, to obtain the current drive parameters of the water pump. Of course, the current drive parameters can be represented not only by the pump's drive voltage, but also by data related to the pump's drive voltage, such as PWM (Pulse Width Modulation) values.

[0047] This embodiment can acquire the current driving parameters of the water pump in the instant water dispenser when the user operates it to dispense hot water. Specifically, a water pump curve correction module can be set up in the instant water dispenser. When the user operates the dispenser to dispense hot water, this module is activated, and a corresponding script program can be run to acquire the current driving parameters of the water pump. It can also acquire the current operating parameters of the instant water dispenser. It is understood that the current operating parameters of the instant water dispenser that need to be acquired will be different in different embodiments. These parameters include, but are not limited to, the real-time power of the instant water dispenser, the difference between the outlet water temperature and the inlet water temperature, the power supply voltage, the rated voltage, and the rated power.

[0048] S20, determine the current flow rate of the water pump based on the current operating parameters, and determine the current curve coordinates of the water pump based on the current driving parameters and the current flow rate.

[0049] Specifically, after obtaining the current operating parameters of the instant hot water dispenser, the current flow rate of the water pump can be determined based on these parameters. It is understood that the specific method for determining the current flow rate of the water pump can be different depending on the operating parameters. Since the current flow rate of the water pump is mainly determined by parameters such as the water pump drive voltage and the target temperature, the current flow rate in this application can be mainly determined based on parameters such as power, voltage, and temperature rise (i.e., the outlet water temperature minus the inlet water temperature).

[0050] After determining the current flow rate of the water pump, the current flow rate and the current driving parameters of the water pump can be used as a new coordinate system. This coordinate system represents the current flow rate of the instant water dispenser under the current driving parameters. It is understood that instant water dispensers are set with a default water output curve at the factory, namely the driving parameter-water flow rate curve. The new coordinate system determined in this application is the correspondence between the driving parameters and the water flow rate, determined by the instant water dispenser based on the current real-time environment.

[0051] S30, based on the current curve coordinates, correct the function coefficients corresponding to at least a portion of the line segments of the water outlet curve stored in the instant hot water dispenser, so as to correct the water outlet curve stored in the instant hot water dispenser.

[0052] Specifically, after determining the current curve coordinates of the water pump based on its current drive parameters and current flow rate, these coordinates are used to correct the water outlet curve stored in the instant hot water dispenser. Specifically, at least a portion of the water outlet curve can be corrected. For example, as shown in Table 1, the water outlet curve in this embodiment is a linear function, y = kx + b, where y is the flow rate in this embodiment, x is the PWM value, and k and b are preset parameters. The water outlet curve is divided into several segments, each with different preset parameters k and b that determine the shape of the linear function. Correcting the segments can involve adjusting these preset parameters to ensure that the correspondence between the drive parameters and the flow rate matches the current operating environment of the instant hot water dispenser.

[0053] Table 1

[0054] PWM range value k b 2800-3000 0.254233 117.4055 2600-2800 0.300817 -13.0296 2400-2600 0.303245 -19.3436 2200-2400 0.272878 53.53807 2000-2200 0.369042 -158.021 1800-2000 0.34734 -114.618 1600-1800 0.322591 -70.0703 1400-1600 0.389007 -176.335 1200-1400 0.411644 -208.027 1000-1200 0.422929 -221.57

[0055] In one embodiment of the present invention, the current operating parameters include the average power and average temperature rise of the instant hot water dispenser over a preset time period.

[0056] Specifically, in this embodiment, during the process of obtaining the current operating parameters of the instant hot water dispenser, the time when the water temperature fluctuates significantly during the heating process can be omitted until the water temperature stabilizes. Then, the average power and average temperature rise within a preset time period are obtained. This allows for a more stable temperature and prevents inaccurate acquisition of the current operating parameters due to large temperature fluctuations. Figure 2 As shown, the water temperature stabilizes around 11:17:20. Therefore, the average power and average temperature rise within a preset time period can be obtained from this time. The preset time can be 6 seconds, or other times. No specific limitation is made here. Users can select according to their actual usage.

[0057] In this embodiment, the current flow rate of the water pump is calculated according to the following formula: Among them, v 当前 Let Pn be the current flow rate, c be the average power, ρ be the specific heat capacity of water, ΔT be the density of water, and ΔT be the average temperature rise.

[0058] Specifically, after obtaining the average power and average temperature rise within a preset time period, it can be followed by the formula. Determine the current flow rate, where the formula is... Specifically, it can be calculated using the formula Pt = cmΔT.

[0059] Therefore, in this embodiment, the current flow rate is calculated based on the average power and average temperature rise, and then the current curve coordinates of the water pump can be determined based on the current flow rate and current driving parameters. The water outlet curve is then corrected using the current curve coordinates.

[0060] In another embodiment of the present invention, the current operating parameters include the average power supply voltage and average temperature rise of the instant hot water dispenser within a preset time, as well as the rated voltage and rated power of the instant hot water dispenser. Determining the current flow rate of the water pump based on the current operating parameters includes: determining the equivalent temperature rise based on the average power supply voltage, average temperature rise, and rated voltage; and determining the current flow rate of the water pump based on the equivalent temperature rise and rated power.

[0061] Specifically, in this embodiment, the current operating parameters include the average power supply voltage and average temperature rise of the instant hot water dispenser within a preset time, as well as the rated voltage and rated power of the instant hot water dispenser. It can be understood that the preset time is the same as the preset time in the above embodiment. After the temperature is determined to be stable, the power supply voltage and temperature rise within a preset time, such as 6 seconds, are averaged to obtain the average power supply voltage and average temperature rise.

[0062] After obtaining the average supply voltage, average temperature rise, rated voltage, and rated power, the equivalent temperature rise can be determined based on the average supply voltage, average temperature rise, and rated voltage. The specific calculation formula is as follows: Among them, △T 等效 The equivalent temperature rise is given by U, where U is the average supply voltage. 额 The voltage is the rated voltage, and ΔT is the average temperature rise.

[0063] It is understandable that the equivalent temperature rise refers to the temperature rise corresponding to the current average temperature rise when the instant hot water dispenser is at its rated voltage and rated power. Specifically, it can be calculated using the formula... Calculated

[0064] It should be noted that, in this embodiment, the preset time includes a first time period and a second time period that overlap, where U is the average power supply voltage of the instant hot water dispenser in the first time period and ΔT is the average temperature rise of the instant hot water dispenser in the second time period.

[0065] Specifically, for example, if the preset time is 6 seconds, then during these 6 seconds, the real-time power supply voltage and real-time temperature rise can be continuously recorded. If the driving parameters in the water output curve are represented by PWM values, then the real-time PWM values ​​can also be recorded. After continuously recording the real-time power supply voltage and real-time temperature rise, the average power supply voltage of the instant hot water dispenser can be calculated using the first time period. In this embodiment, the first time period is 0-4 seconds, that is, the first 4 seconds of the 6-second preset time. The average temperature rise of the instant hot water dispenser in this embodiment is the average temperature rise within the second time period, which can be 2-6 seconds, that is, the last 4 seconds of the 6-second preset time. It should be noted that this embodiment divides the preset time into two time periods with overlapping time. Since the power supply voltage changes relatively little, obtaining the average power supply voltage only requires recording the power supply voltage within the first time period. Furthermore, using the first time period can reduce the number of times and the recording time of the real-time voltage, thereby improving the acquisition speed. Since the longer the heating time, the more stable the temperature, when recording the average temperature rise, the temperature rise within the second time period can be recorded, and then the average temperature rise within the second time period can be calculated to obtain a more stable and accurate average temperature rise.

[0066] In this embodiment, the current flow rate of the water pump is calculated according to the following formula: Among them, △T 等效 For the equivalent temperature rise, v 当前 For the current flow rate, P 额 Where ρ is the rated power, c is the specific heat capacity of water, and ρ is the density of water.

[0067] Specifically, after obtaining the average power supply voltage and rated power of the instant hot water dispenser within a preset time period, and calculating the equivalent temperature rise within the preset time period, one can then follow the formula... Determine the current flow rate, where the formula is... Specifically, it can be calculated using the formula Pt = cmΔT.

[0068] Therefore, in this embodiment, the current flow rate is calculated based on the average power supply voltage, rated power and equivalent temperature rise, and then the current curve coordinates of the water pump can be determined based on the current flow rate and current drive parameters, and the water outlet curve can be corrected using the current curve coordinates.

[0069] In one embodiment of the present invention, such as Figure 3 As shown, the function coefficients corresponding to at least a portion of the water outlet curve stored in the instant hot water dispenser are corrected based on the current curve coordinates, including the following steps:

[0070] S301, determine the coordinates of the reference point corresponding to at least one line segment in at least some of the line segments based on the current curve coordinates.

[0071] Specifically, for example, the water outlet curve in this embodiment of the invention is a linear function, such as y = kx + b, where x can represent the driving parameters of the instant hot water dispenser, and y can represent the water output of the instant hot water dispenser. In this embodiment, the water outlet curve is divided into several line segments, specifically as follows: Figure 4 As shown, the water outlet curve can be divided into 10 line segments. It should be noted that each line segment corresponds to a reference point coordinate, which can be used to represent the line segment it corresponds to. Optionally, the reference point of each line segment can be the center point of the line segment or the edge point of the line segment; no specific limitation is made here.

[0072] After determining the current curve coordinates, this embodiment can determine the current water outlet curve segment of the hot water dispenser based on the driving parameters in the current curve coordinates. Then, it can determine the part of the line segment that needs to be updated based on the line segment where the current curve coordinates are located, and then obtain at least one reference point corresponding to the line segment that needs to be updated from the part of the line segment that needs to be updated.

[0073] S302, determine the function coefficients to be updated based on the current curve coordinates and reference point coordinates.

[0074] Specifically, in some embodiments, after determining the current curve coordinates and the reference point coordinates, the function coefficients of all three types of line segments—the line segment corresponding to the current curve coordinates, the line segment corresponding to the reference point coordinates, and the line segment corresponding to other reference points between the current curve coordinates and the reference point coordinates—can be updated. Of course, in other embodiments, only the function coefficients of two or one of these three types of line segments can be updated.

[0075] The specific update method is to determine the function coefficients to be updated based on the current curve coordinates and the reference point coordinates. For example, in a linear function, the parameters k and b are used. The function coefficients corresponding to the line segments that need to be updated are then updated. Specifically, the function coefficients of the line segments to be updated can be replaced with the function coefficients to be updated.

[0076] S303, update the function coefficients corresponding to at least some line segments based on the function coefficients to be updated.

[0077] Specifically, after calculating the function coefficients to be updated, these coefficients can be used to update the function coefficients corresponding to the line segments to be updated. This can be achieved by replacing the function coefficients corresponding to the line segments with the new coefficients. Alternatively, other update methods can be used, such as averaging the function coefficients to be updated with the function coefficients corresponding to at least a portion of the line segments, and then using the average coefficients to update the function coefficients corresponding to at least a portion of the line segments.

[0078] In this embodiment, the function coefficients to be updated are determined based on the current curve coordinates and the reference point coordinates, including the following steps:

[0079] S501: Combine the current curve coordinates and the reference point coordinates to form a straight line segment, and calculate the function coefficients corresponding to the straight line segment. S502: Use the function coefficients corresponding to the straight line segment as the function coefficients to be updated.

[0080] Specifically, in this embodiment, after the current curve coordinates are determined through the above embodiment and the reference point coordinates are determined based on the current curve coordinates, a straight line segment is formed by using the current curve coordinates and the reference point coordinates. That is, the line segment between the current curve coordinates and the reference point coordinates is straightened, and the function coefficients corresponding to the straight line segment are calculated.

[0081] More specifically, for example, as shown in Table 2, assuming the horizontal coordinate of the current curve is the PWM value and is 1450, then it can be determined that the current curve coordinate is within the PWM range of line segment 8. Then, the three water outlet curve segments, line segments 8, 7, and 6, can be taken as at least some of the line segments that need to be updated. Then, the water outlet curve segment corresponding to line segment 6 can be determined, and the reference coordinate of the line segment can be obtained. Then, the function coefficient to be updated can be calculated based on the reference coordinate and the current curve coordinate.

[0082] The following is a more detailed explanation using a specific example. For instance, if the current curve coordinates are (1450, 430), the reference coordinates of the outlet curve segment corresponding to line segment 6 are (1900, 545). The reference coordinates are calculated based on the function coefficients corresponding to the outlet curve segment corresponding to line segment 6 in Table 2. Since the abscissa of the reference coordinates for each line segment is the midpoint of that segment, the abscissa of the outlet curve segment corresponding to line segment 6 is 1900. Substituting 1900 as the value of x into the formula y = 0.34734 * x - 114.618, we find that when the PWM value is 1900, the corresponding outlet flow rate is approximately 545. Therefore, the reference coordinates of this line segment are (1900, 545). Based on the current curve coordinates (1450, 430) and the reference coordinates (1900, 545) of the outlet curve segment corresponding to number 6, we establish a system of equations. And solve for the new function coefficients, thus obtaining the results. Then the function coefficients of the water outlet curve segments corresponding to line segments 6, 7 and 8 can be replaced with new function coefficients, namely k1 and b1, as shown in Table 3.

[0083] Table 2

[0084] PWM range value k b serial number 2800-3000 0.254233 117.4055 1 2600-2800 0.300817 -13.0296 2 2400-2600 0.303245 -19.3436 3 2200-2400 0.272878 53.53807 4 2000-2200 0.369042 -158.021 5 1800-2000 0.34734 -114.618 6 1600-1800 0.322591 -70.0703 7 1400-1600 0.389007 -176.335 8 1200-1400 0.411644 -208.027 9 1000-1200 0.422929 -221.57 10

[0085] Table 3

[0086] PWM range value k b serial number 2800-3000 0.254233 117.4055 1 2600-2800 0.300817 -13.0296 2 2400-2600 0.303245 -19.3436 3 2200-2400 0.272878 53.53807 4 2000-2200 0.369042 -158.021 5 1800-2000 0.26 59.4 6 1600-1800 0.26 59.4 7 1400-1600 0.26 59.4 8 1200-1400 0.411644 -208.027 9 1000-1200 0.422929 -221.57 10

[0087] In this embodiment, the reference point coordinates include the high point reference point coordinates and the low point reference point coordinates. The function coefficients to be updated include the first function coefficients corresponding to the first straight line segment formed by the current curve coordinates and the high point reference point coordinates, and the second function coefficients corresponding to the second straight line segment formed by the current curve coordinates and the low point reference point coordinates.

[0088] Specifically, in one particular embodiment, such as Figure 4 As shown, assuming the x-coordinate of the current curve coordinates is between 14V and 15V, then among all the reference points of the line segments, those with x-coordinates greater than the current curve coordinates are designated as high-point reference points, while those with x-coordinates less than the current curve coordinates are designated as low-point reference points. Of course, other methods can also be used to determine high and low reference points. For example, by comparing the y-coordinate values, if the y-coordinate of a reference point is greater than the current curve coordinate, it can be determined as a high-point reference point, and if it is less, it can be determined as a low-point reference point. Other methods can also be used for this determination, which are not specifically limited here.

[0089] After determining the coordinates of the high and low reference points, the line segments to be updated can be determined based on these two reference point coordinates and the current curve coordinates. The methods for forming different line segments based on different reference points can be different or the same. For example, the water outlet curve segment formed by the line segments corresponding to the current curve coordinates and the high reference point coordinates, as well as the line segments between the current curve coordinates and the high reference point coordinates, can be corrected into a first straight line segment. Similarly, for the low reference point coordinates, the water outlet curve segment formed by the line segments corresponding to the low reference point coordinates and the line segments between the current curve coordinates and the low reference point coordinates can be corrected into a second straight line segment.

[0090] In this specific example, after determining the first and second line segments, the first function coefficient corresponding to the first line segment can replace the function coefficients corresponding to the line segments between the current curve coordinates and the high reference point coordinates, as well as the line segments between the current curve coordinates and the high reference point coordinates. Similarly, the second function coefficient corresponding to the second line segment can replace the function coefficients corresponding to the line segments between the low reference point coordinates and the line segments between the current curve coordinates and the low reference point coordinates.

[0091] In one specific embodiment, updating the function coefficients corresponding to at least a portion of the line segments according to the function coefficients to be updated includes: updating the function coefficients corresponding to the line segments between the current curve coordinates and the high point reference point coordinates according to the first function coefficient, and updating the function coefficients corresponding to the line segments between the current curve coordinates and the low point reference point coordinates according to the second function coefficient.

[0092] Specifically, in this embodiment, taking Table 4 as an example, if the current curve coordinates are in line segment 5, the high point reference point coordinates are the reference point of line segment 2, and the low point reference point coordinates are the reference point of line segment 8, then the line segments between the current curve coordinates and the high point reference point coordinates are line segments 3 and 4. The function coefficients corresponding to line segments 3 and 4 can be updated according to the first function coefficients. The first function coefficients k1 and b1 can be solved based on the current curve coordinates and the high point reference point coordinates, as described in the above embodiment, and will not be repeated here. Similarly, if the line segments between the current curve coordinates and the low point reference point coordinates are line segments 6 and 7, the function coefficients corresponding to line segments 6 and 7 can be updated according to the second function coefficients. The second function coefficients can be solved based on the current curve coordinates and the low point reference point coordinates, and their solution method is the same as that of the first function coefficients, as described in the above embodiment, and will not be repeated here.

[0093] Table 4

[0094]

[0095]

[0096] In embodiments of the present invention, such as Figure 6 As shown, the reference point coordinates include the coordinates of the high reference point and the low reference point. The function coefficients to be updated are determined based on the current curve coordinates and the reference point coordinates, including:

[0097] S601: Combine the current curve coordinates and the high point reference point coordinates to form the first straight line segment, and calculate the function coefficients corresponding to the first straight line segment.

[0098] Specifically, after determining the current curve coordinates and the high-point reference point coordinates, the current curve coordinates and the high-point reference point coordinates can form a first straight line segment. This segment may or may not include other outlet curve segments between the high-point reference point coordinates and the current curve coordinates. For example, if no other outlet curve segments are included between the current curve coordinates and the high-point reference point coordinates, the first straight line segment can be composed of the outlet curve segment corresponding to the current curve coordinates and the outlet curve segment corresponding to the high-point reference point coordinates. However, if other outlet curve segments are included between the current curve coordinates and the high-point reference point coordinates, then the first straight line segment includes not only the outlet curve segment corresponding to the current curve coordinates and the outlet curve segment corresponding to the high-point reference point coordinates, but also other line segments included between these two segments.

[0099] After determining the first straight line segment, the function coefficient of the first straight line segment is calculated based on the current curve coordinates and the high point reference point coordinates. The specific calculation method can be found in the description of calculating the function coefficient using the current curve coordinates and reference point coordinates in the above embodiment, and will not be repeated here. Since each water outlet curve segment corresponding to the first straight line segment has a function coefficient, after calculating the function coefficient of the first straight line segment, this function coefficient can replace the function coefficient of each corresponding water outlet curve segment in the first straight line segment, as shown in Table 5. Here, segment 6 is the water outlet curve segment corresponding to the current curve coordinates, the first straight line segment includes segments 4, 5, and 6, and function coefficients k1 and b1 are the function coefficients of the first straight line segment. After calculating k1 and b1, they are used to replace the function coefficient values ​​corresponding to segments 4, 5, and 6 in Table 5.

[0100] Table 5

[0101]

[0102]

[0103] S602, substitute the function coefficients corresponding to the first straight line segment into the function of the water outlet curve segment that is compatible with the current curve coordinates to obtain the updated coordinates.

[0104] Specifically, in this embodiment, the function coefficients k1 and b1 of the first straight line segment have been calculated, that is, the function coefficients k1 and b1 in Table 5 are known coefficients. Assuming that the water outlet curve segment that matches the current curve coordinates is line segment 6, the coordinates of the reference point corresponding to line segment 6 can be updated. The specific update method is to substitute the x-coordinate as the x-value in the function y = k1x + b1 to calculate the y of the function, and use the calculated x and y values ​​as the updated reference point coordinates of line segment 6, that is, update the coordinates.

[0105] S603 updates the coordinates and the low point reference point coordinates to form the third straight line segment, and calculates the function coefficients corresponding to the third straight line segment.

[0106] Specifically, after determining the updated coordinates, the third straight line segment can be determined based on the updated coordinates and the low-point reference point coordinates. The method for determining the third straight line segment is the same as the method for determining the first straight line segment in step S601 of this embodiment, and will not be repeated here. After determining the third straight line segment, the function coefficients corresponding to the third straight line segment can be calculated based on the updated coordinates and the low-point reference point coordinates. For example, based on the updated coordinates and the low-point reference point coordinates, the function coefficients corresponding to the third straight line segment can be calculated as k2 and b2. Since the water outlet curve segment that matches the low-point reference point coordinates is segment 8, the third straight line segment can be composed of segment 8 and segment 7, as shown in Table 5. In this embodiment, the function coefficients corresponding to segment 7 and segment 8 are replaced with k2 and b2.

[0107] S604, take the function coefficients corresponding to the first line segment and the function coefficients corresponding to the third line segment as the function coefficients to be updated.

[0108] Specifically, in this embodiment, the function coefficients used to update the first straight line segment and the third straight line segment are different. The reason for dividing the line segment to be updated into two segments for updating is to update the water outlet curve more specifically, thereby improving the correction effect of the water outlet curve and obtaining a water outlet curve that is more in line with the current instant hot water dispenser.

[0109] In this embodiment, updating the function coefficients corresponding to at least a portion of the line segments based on the function coefficients to be updated includes: updating the function coefficients of the water outlet curve segment corresponding to the high point reference point coordinates, the function coefficients of the water outlet curve segment that matches the current curve coordinates, and the function coefficients of the corresponding water outlet curve segment between the current curve coordinates and the high point reference point coordinates based on the function coefficients corresponding to the first straight line segment; and updating the function coefficients of the water outlet curve segment corresponding to the low point reference point coordinates, and the function coefficients of the corresponding water outlet curve segment between the current curve coordinates and the low point reference point coordinates based on the function coefficients corresponding to the third straight line segment.

[0110] Specifically, in this embodiment, for different line segments to be updated, the function coefficients corresponding to different line segments are used to update their function coefficients. After determining the function coefficients of the first and second line segments, the function coefficients of the first line segment can be used to replace the function coefficients of the corresponding line segments to be updated. The line segments to be updated that match the first line segment are the water outlet curve segments corresponding to the high point reference coordinates, the water outlet curve segments matching the current curve coordinates, and the corresponding water outlet curve segments between the current curve coordinates and the high point reference coordinates. The function coefficients of the third line segment are used to replace the function coefficients of the corresponding line segments to be updated. The line segments to be updated that match the third line segment are the water outlet curve segments corresponding to the low point reference coordinates, and the corresponding water outlet curve segments between the current curve coordinates and the low point reference coordinates.

[0111] It should be noted that the water outlet curve correction method of the instant hot water dispenser in this embodiment of the invention can be updated with each use by the user. In each update, the function coefficients k and b in the table are replaced. As a result, after the user uses the instant hot water dispenser multiple times, the water outlet curve of the dispenser will become closer and closer to the actual water pump curve characteristics of the dispenser, thereby obtaining a more and more accurate water pump voltage-flow rate curve function. In subsequent water output statistics and temperature control, the accuracy can also be improved based on the accurate water pump voltage-flow rate curve function.

[0112] Summary, see Figure 7 The following describes steps S701-S710 in detail. The water outlet curve correction method for the instant hot water dispenser in this embodiment of the invention first detects whether the user has triggered a water outlet demand. After confirming that the user has triggered a water outlet demand, the water outlet curve correction function is activated, and then it is determined whether the water outlet temperature is stable. If it is determined that the water outlet temperature is not yet stable, the process returns to repeat the judgment. If it is determined that the water outlet temperature is already stable, the average power and average temperature rise of the instant hot water dispenser within a preset time period, or the average power supply voltage and average temperature rise, as well as the rated voltage and rated power of the instant hot water dispenser, can be obtained. Figure 7 The technical solution of the present invention will be described using the acquisition of average power and average temperature rise as an example. After obtaining the average power and average temperature rise of the instant hot water dispenser within a preset time, the formula is used... Calculate the current flow rate of the water pump, and then determine the current curve coordinates of the instant hot water dispenser based on the current flow rate and voltage value of the water pump. Determine the coordinates of the reference point based on the current curve coordinates, and then determine the line segment to be updated and the function coefficients to be updated based on the reference point coordinates and the current curve coordinates. Finally, update the function coefficients of the line segment to be updated using the function coefficients to be updated.

[0113] Understandable Figure 7The illustration shown is merely one specific embodiment of the water outlet curve correction method for the instant hot water dispenser of the present invention. The present invention also includes other embodiments, the implementation methods of which are similar to... Figure 7 The embodiments shown are similar, and have been described in detail in the above embodiments, so they will not be repeated here.

[0114] In summary, the water outlet curve correction method for the instant hot water dispenser in this embodiment of the invention can correct the water outlet curve of the water dispenser so that the water dispenser has an accurate water outlet curve, ensuring accurate water output and thus improving the temperature control effect of the water dispenser.

[0115] Figure 8 This is a structural block diagram of a water outlet curve correction device for an instant hot water dispenser according to an embodiment of the present invention.

[0116] Furthermore, such as Figure 8 As shown, the present invention proposes a water outlet curve correction device 100 for an instant hot water dispenser, which includes an acquisition module 101, a determination module 102 and a correction module 103.

[0117] The acquisition module 101 is used to acquire the current driving parameters of the water pump in the instant hot water dispenser and the current operating parameters of the instant hot water dispenser; the determination module 102 is used to determine the current flow rate of the water pump based on the current operating parameters and the current curve coordinates of the water pump based on the current driving parameters and the current flow rate; the correction module 103 is used to correct the function coefficients corresponding to at least a portion of the water outlet curves stored in the instant hot water dispenser based on the current curve coordinates, so as to correct the water outlet curves stored in the instant hot water dispenser.

[0118] In some embodiments of the present invention, the current operating parameters include the average power and average temperature rise of the instant hot water dispenser over a preset time period.

[0119] In some embodiments of the present invention, the determining module 102 calculates the current flow rate of the water pump according to the following formula: Among them, v 当前 Let Pn be the current flow rate, c be the average power, ρ be the specific heat capacity of water, ΔT be the density of water, and ΔT be the average temperature rise.

[0120] In some embodiments of the present invention, the current operating parameters include the average power supply voltage and average temperature rise of the instant hot water dispenser within a preset time, as well as the rated voltage and rated power of the instant hot water dispenser. Specifically, the determining module 102 is used to determine the equivalent temperature rise based on the average power supply voltage, average temperature rise, and rated voltage; and to determine the current flow rate of the water pump based on the equivalent temperature rise and rated power.

[0121] In some embodiments of the present invention, the determining module 102 calculates the equivalent temperature rise according to the following formula: Among them, △T等效 The equivalent temperature rise is given by U, where U is the average supply voltage. 额 The voltage is the rated voltage, and ΔT is the average temperature rise.

[0122] In some embodiments of the present invention, the preset time includes a first time period and a second time period with time overlap, wherein U is the average power supply voltage of the instant hot water dispenser in the first time period, and ΔT is the average temperature rise of the instant hot water dispenser in the second time period.

[0123] In some embodiments of the present invention, the determining module 102 calculates the current flow rate of the water pump according to the following formula: Among them, △T 等效 For the equivalent temperature rise, v 当前 For the current flow rate, P 额 Where ρ is the rated power, c is the specific heat capacity of water, and ρ is the density of water.

[0124] In some embodiments of the present invention, the correction module 103 is specifically used to: determine the coordinates of a reference point corresponding to at least one of the line segments based on the current curve coordinates; determine the function coefficients to be updated based on the current curve coordinates and the reference point coordinates; and update the function coefficients corresponding to at least some of the line segments based on the function coefficients to be updated.

[0125] In some embodiments of the present invention, the correction module 103 is further configured to form a straight line segment from the current curve coordinates and the reference point coordinates, and calculate the function coefficients corresponding to the straight line segment; and use the function coefficients corresponding to the straight line segment as the function coefficients to be updated.

[0126] In some embodiments of the present invention, the reference point coordinates include the high point reference point coordinates and the low point reference point coordinates, and the function coefficients to be updated include the first function coefficients corresponding to the first straight line segment formed by the current curve coordinates and the high point reference point coordinates, and the second function coefficients corresponding to the second straight line segment formed by the current curve coordinates and the low point reference point coordinates.

[0127] In some embodiments of the present invention, the correction module 103 is further configured to update the function coefficients corresponding to the line segments between the current curve coordinates and the high point reference point coordinates according to the first function coefficients, and update the function coefficients corresponding to the line segments between the current curve coordinates and the low point reference point coordinates according to the second function coefficients.

[0128] In some embodiments of the present invention, the reference point coordinates include high point reference point coordinates and low point reference point coordinates. The correction module 103 is used to: form a first straight line segment by combining the current curve coordinates and the high point reference point coordinates, and calculate the function coefficients corresponding to the first straight line segment; substitute the function coefficients corresponding to the first straight line segment into the water outlet curve segment function that is compatible with the current curve coordinates to obtain updated coordinates; form a third straight line segment by combining the updated coordinates and the low point reference point coordinates, and calculate the function coefficients corresponding to the third straight line segment; and use the function coefficients corresponding to the first straight line segment and the function coefficients corresponding to the third straight line segment as the function coefficients to be updated.

[0129] In some embodiments of the present invention, the correction module 103 is further configured to update the function coefficients of the water outlet curve segment corresponding to the high point reference point coordinates, the function coefficients of the water outlet curve segment adapted to the current curve coordinates, and the function coefficients of the corresponding water outlet curve segment between the current curve coordinates and the high point reference point coordinates, based on the function coefficients corresponding to the first straight line segment; and update the function coefficients of the water outlet curve segment corresponding to the low point reference point coordinates, and the function coefficients of the corresponding water outlet curve segment between the current curve coordinates and the low point reference point coordinates, based on the function coefficients corresponding to the third straight line segment.

[0130] It should be noted that the specific implementation of the water outlet curve correction device of the instant hot water dispenser in the embodiments of the present invention can be found in the specific implementation of the water outlet curve correction method of the instant hot water dispenser in the above embodiments, and will not be repeated here.

[0131] In summary, the water outlet curve correction device of the instant hot water dispenser in this embodiment of the invention can correct the water outlet curve of the water dispenser so that the water dispenser has an accurate water outlet curve, ensuring accurate water output and thus improving the temperature control effect of the water dispenser.

[0132] Figure 9 This is a structural block diagram of an instant hot water dispenser according to an embodiment of the present invention.

[0133] Furthermore, such as Figure 9 As shown, the present invention proposes an instant hot water dispenser 200, which includes a memory 201, a processor 202, and a water outlet curve correction program for the instant hot water dispenser stored in the memory 201 and executable on the processor 202. When the processor 202 executes the water outlet curve correction program for the instant hot water dispenser, it implements the water outlet curve correction method for the instant hot water dispenser according to the above embodiments.

[0134] The instant hot water dispenser of this invention includes a memory and a processor. The processor executes a water outlet curve correction program stored in the memory, which can correct the water outlet curve of the dispenser to ensure that the dispenser has an accurate water outlet curve, thereby ensuring accurate water output and improving the temperature control effect of the dispenser.

[0135] Furthermore, the present invention proposes a computer-readable storage medium storing a water outlet curve correction program for an instant hot water dispenser, which, when executed by a processor, implements the water outlet curve correction method for the instant hot water dispenser according to the above embodiments.

[0136] The computer-readable storage medium of this invention executes a water outlet curve correction program for an instant hot water dispenser stored thereon via a processor, which can correct the water outlet curve of the water dispenser to ensure that the water dispenser has an accurate water outlet curve, thereby ensuring accurate water output and improving the temperature control effect of the water dispenser.

[0137] It should be noted that, see Figure 10 and Figure 11 As shown in the figure, this is a schematic diagram of the instant hot water system involved in the above embodiment of the present invention. An instant heating pipe (not shown) is provided between the outlet 111 and the inlet 112. The inlet 112 is also connected to a water pump 113, which pumps water to the inlet 112. A water outlet device guides the water passing through the instant heating pipe to the outlet 111, thus satisfying the user's water needs. It should be noted that the outlet 111, inlet 112, and instant heating pipe are all equipped with temperature sensors (not shown) to obtain the outlet water temperature, inlet water temperature, and instant heating pipe temperature to meet the requirements of water output curve correction. The specific temperature sensor is not limited here.

[0138] Furthermore, the other components and functions of the instant hot water dispenser in this embodiment of the invention are known to those skilled in the art, and will not be described in detail here to reduce redundancy.

[0139] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0140] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0141] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0142] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0143] Furthermore, the terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this invention can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this invention, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0144] In this invention, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific implementation.

[0145] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0146] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for correcting the water output curve of an instant hot water dispenser, characterized in that, include: Obtain the current driving parameters of the water pump in the instant hot water dispenser, and obtain the current operating parameters of the instant hot water dispenser; The current flow rate of the water pump is determined based on the current operating parameters, and the current curve coordinates of the water pump are determined based on the current driving parameters and the current flow rate. The function coefficients corresponding to at least a portion of the line segments of the water outlet curve stored in the instant hot water dispenser are corrected based on the current curve coordinates in order to correct the water outlet curve stored in the instant hot water dispenser. The function coefficients corresponding to at least a portion of the water outlet curve stored in the instant hot water dispenser are corrected based on the current curve coordinates, including: Determine the coordinates of the reference point corresponding to at least one of the at least some line segments based on the current curve coordinates; The function coefficients to be updated are determined based on the current curve coordinates and the reference point coordinates. The function coefficients corresponding to the at least part of the line segments are updated based on the average of the function coefficients to be updated and the function coefficients corresponding to the at least part of the line segments.

2. The method according to claim 1, characterized in that, The current operating parameters include the average power and average temperature rise of the instant hot water dispenser within a preset time period.

3. The method according to claim 2, characterized in that, The current flow rate of the water pump is calculated using the following formula: Among them, v 当前 The current flow rate is Pn, the average power is c, the specific heat capacity of water is ρ, the density of water is ΔT, and the average temperature rise is ΔT.

4. The method according to claim 1, characterized in that, The current operating parameters include the average power supply voltage and average temperature rise of the instant hot water dispenser within a preset time, as well as the rated voltage and rated power of the instant hot water dispenser. Determining the current flow rate of the water pump based on the current operating parameters includes: The equivalent temperature rise is determined based on the average supply voltage, the average temperature rise, and the rated voltage. The current flow rate of the water pump is determined based on the equivalent temperature rise and the rated power.

5. The method according to claim 4, characterized in that, The equivalent temperature rise is calculated using the following formula: Among them, △T 等效 U is the equivalent temperature rise, and U is the average supply voltage. 额 The rated voltage is ΔT, and the average temperature rise is ΔT.

6. The method according to claim 5, characterized in that, The preset time includes a first time period and a second time period with time overlap, where U is the average power supply voltage of the instant hot water dispenser in the first time period, and ΔT is the average temperature rise of the instant hot water dispenser in the second time period.

7. The method according to claim 4, characterized in that, The current flow rate of the water pump is calculated using the following formula: Among them, △T 等效 For the equivalent temperature rise, v 当前 For the current flow rate, P 额 Where is the rated power, c is the specific heat capacity of water, and ρ is the density of water.

8. The method according to claim 1, characterized in that, Determining the function coefficients to be updated based on the current curve coordinates and the reference point coordinates includes: Combine the current curve coordinates and the reference point coordinates to form a straight line segment, and calculate the function coefficients corresponding to the straight line segment; The function coefficients corresponding to the line segment are used as the function coefficients to be updated.

9. The method according to claim 8, characterized in that, The reference point coordinates include high reference point coordinates and low reference point coordinates. Reference point coordinates whose x-coordinate is greater than the x-coordinate of the current curve coordinates and / or whose y-coordinate is greater than the y-coordinate of the current curve coordinates are used as high reference point coordinates, and those whose y-coordinate is less than the y-coordinate of the current curve coordinates are used as low reference point coordinates. The function coefficients to be updated include the first function coefficients corresponding to the first straight line segment formed by the current curve coordinates and the high reference point coordinates, and the second function coefficients corresponding to the second straight line segment formed by the current curve coordinates and the low reference point coordinates.

10. The method according to claim 9, characterized in that, Updating the function coefficients corresponding to the at least part of the line segments based on the average of the function coefficients to be updated and the function coefficients corresponding to the at least part of the line segments includes: The function coefficients corresponding to the corresponding line segments between the current curve coordinates and the high point reference point coordinates are updated based on the average of the first function coefficients and the corresponding function coefficients of the line segments between the current curve coordinates and the high point reference point coordinates. The function coefficients corresponding to the corresponding line segments between the current curve coordinates and the low point reference point coordinates are also updated based on the average of the second function coefficients and the corresponding function coefficients of the line segments between the current curve coordinates and the low point reference point coordinates.

11. The method according to claim 1, characterized in that, The reference point coordinates include high reference point coordinates and low reference point coordinates. Reference point coordinates whose x-coordinate is greater than the x-coordinate of the current curve coordinates, and / or whose y-coordinate is greater than the y-coordinate of the current curve coordinates, are designated as high reference point coordinates; those less are designated as low reference point coordinates. The determination of the function coefficients to be updated based on the current curve coordinates and the reference point coordinates includes: The current curve coordinates and the high point reference point coordinates are combined to form a first straight line segment, and the function coefficients corresponding to the first straight line segment are calculated. Substitute the function coefficients corresponding to the first straight line segment into the water outlet curve segment function that is compatible with the current curve coordinates to obtain the updated coordinates; The updated coordinates and the low point reference point coordinates are combined to form a third straight line segment, and the function coefficients corresponding to the third straight line segment are calculated. The function coefficients corresponding to the first line segment and the function coefficients corresponding to the third line segment are used as the function coefficients to be updated.

12. The method according to claim 11, characterized in that, Updating the function coefficients corresponding to the at least part of the line segments based on the average of the function coefficients to be updated and the function coefficients corresponding to the at least part of the line segments includes: The function coefficients of the water outlet curve segment corresponding to the high point reference point coordinates, the function coefficients of the water outlet curve segment adapted to the current curve coordinates, and the average value of the function coefficients of the corresponding water outlet curve segments between the current curve coordinates and the high point reference point coordinates are updated based on the function coefficients corresponding to the first straight line segment, the function coefficients of the water outlet curve segment adapted to the current curve coordinates, and the function coefficients of the corresponding water outlet curve segments between the current curve coordinates and the high point reference point coordinates. The function coefficients of the water outlet curve segment corresponding to the low point reference point coordinates and the function coefficients of the water outlet curve segment corresponding to the low point reference point coordinates are updated based on the average value of the function coefficients of the third straight line segment, the function coefficients of the water outlet curve segment corresponding to the low point reference point coordinates, and the function coefficients of the corresponding water outlet curve segments between the current curve coordinates and the low point reference point coordinates.

13. A device for correcting the water outlet curve of an instant hot water dispenser, characterized in that, The method for correcting the water output curve of an instant hot water dispenser according to any one of claims 1-12 includes: The acquisition module is used to acquire the current driving parameters of the water pump in the instant hot water dispenser and the current operating parameters of the instant hot water dispenser. The determination module is used to determine the current flow rate of the water pump based on the current operating parameters, and to determine the current curve coordinates of the water pump based on the current driving parameters and the current flow rate. The correction module is used to correct the function coefficients corresponding to at least a portion of the line segments of the water outlet curve stored in the instant hot water dispenser according to the current curve coordinates, so as to correct the water outlet curve stored in the instant hot water dispenser.

14. An instant hot water dispenser, characterized in that, The device includes a memory, a processor, and a water outlet curve calibration program for an instant hot water dispenser stored in the memory and running on the processor. When the processor executes the water outlet curve calibration program for the instant hot water dispenser, it implements the water outlet curve calibration method for the instant hot water dispenser according to any one of claims 1-12.

15. A computer-readable storage medium, characterized in that, It stores a water outlet curve calibration program for an instant hot water dispenser, which, when executed by a processor, implements the water outlet curve calibration method for an instant hot water dispenser according to any one of claims 1-12.

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