Instant water drinking equipment, model coefficient self-adaption method and device thereof and storage medium

Abstract

The invention discloses instant-heating drinking water equipment, a model coefficient self-adaption method and device thereof and a storage medium, and the method comprises the steps: constructing a full-power heating physical model of the instant-heating drinking water equipment according to the fitting relation between the difference value of the water outlet temperature and the water inlet temperature of the instant-heating drinking water equipment and the water inlet flow velocity; the current difference value of the water outlet temperature and the water inlet temperature of the instant heating drinking water equipment and the current water inlet flow speed are obtained; and according to the current difference value of the water outlet temperature and the water inlet temperature and the current water inlet flow speed, the model coefficient of the full-power heating physical model is subjected to self-adaptive correction. Therefore, the self-adaptive correction of the model coefficient of the full-power heating physical model is realized by utilizing the difference value between the water outlet temperature and the water inlet temperature of the instant water drinking equipment and the water inlet flow speed, so that the actual physical characteristics of different instant water drinking equipment are identified, the full-power heating physical model is more fit with the actual condition of each instant water drinking equipment, and the accuracy of the full-power heating physical model is improved. And the optimal performance effect and the optimal water outlet experience are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of instant hot water drinking equipment, and in particular to a model coefficient self-adaptation method for instant hot water drinking equipment, a computer-readable storage medium, a model coefficient self-adaptation device for instant hot water drinking equipment, and an instant hot water drinking equipment. Background Art

[0002] Instant hot water equipment is a convenient and fast drinking water machine, which is mainly used to make hot water, warm water and cold water for daily use by users. The water purifier directly supplies water to the instant hot water equipment, which heats the water and drops it into the user's cup. However, the problem with the related technology is that due to the limitations of the production process level, there are corresponding tolerances between the components. At this time, for the temperature control strategy, if the comprehensive tolerances between different instant hot water equipment are large, different products may have problems such as the water outlet temperature failing to reach the target temperature, the temperature rising too slowly, the temperature rising too quickly, the temperature overshooting too much or the temperature failing to stabilize, resulting in poor user experience. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the first object of the present invention is to provide a model coefficient adaptive method for an instant hot water device.

[0004] A second object of the present invention is to provide a computer-readable storage medium.

[0005] The third object of the present invention is to provide a model coefficient adaptive device for instant hot water drinking equipment.

[0006] A fourth object of the present invention is to provide an instant hot water drinking device.

[0007] To achieve the above-mentioned purpose, the model coefficient adaptive method of the instant hot drinking water equipment proposed in the embodiment of the first aspect of the present invention includes: constructing a full-power heating physical model of the instant hot drinking water equipment according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot drinking water equipment and the inlet water flow rate; obtaining the current difference between the outlet water temperature and the inlet water temperature of the instant hot drinking water equipment and the current inlet water flow rate; and adaptively correcting the model coefficients of the full-power heating physical model according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate.

[0008] According to the model coefficient adaptive method of the instant hot water device of the embodiment of the present invention, a full-power heating physical model of the instant hot water device is constructed according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, and then the current difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the current inlet water flow rate are obtained, and the model coefficient of the full-power heating physical model is adaptively corrected according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate. Thus, the model coefficient of the full-power heating physical model is adaptively corrected by using the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, so that the actual physical characteristics of different instant hot water devices are identified, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water device, and the best performance effect and water output experience are achieved.

[0009] In addition, the model coefficient adaptive method of the instant hot water drinking water device according to the above embodiment of the present invention may also have the following additional technical features:

[0010] According to one embodiment of the present invention, the full power heating physical model of the instant hot water device is constructed by the following formula: ΔT = f(F) = aF 3 +bF 2 +cF+d, where △T is the difference between the outlet water temperature and the inlet water temperature, F is the number of pulses corresponding to the inlet water flow rate, and a, b, c, d are model coefficients.

[0011] According to one embodiment of the present invention, the model coefficients of the full-power heating physical model are adaptively corrected according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate, including: taking the current inlet water flow rate as the horizontal coordinate, and taking the current difference between the outlet water temperature and the inlet water temperature as the vertical coordinate to construct an updated coordinate; obtaining a plurality of preset reference horizontal coordinates and preset model coefficients, and substituting the plurality of preset reference horizontal coordinates and the preset model coefficients into the full-power heating physical model respectively to obtain a plurality of reference coordinates; replacing the reference coordinate with the smallest horizontal coordinate difference with the updated coordinate among the plurality of reference coordinates with the updated coordinate; substituting the remaining plurality of reference coordinates and the updated coordinate into the full-power heating physical model respectively to obtain a multivariate equation group corresponding to the model coefficients of the full-power heating physical model; solving the multivariate equation group corresponding to the model coefficients of the full-power heating physical model to obtain the model coefficients of the adaptively corrected full-power heating physical model.

[0012] According to an embodiment of the present invention, the method further comprises: using Cramer's law to solve the multivariate equation group of model coefficients corresponding to the full-power heating physical model.

[0013] According to an embodiment of the present invention, the method further comprises: updating the full-power heating physical model according to the model coefficients of the adaptively corrected full-power heating physical model.

[0014] According to one embodiment of the present invention, the method further includes: obtaining a target difference between an outlet water temperature and an inlet water temperature, and substituting the target difference into an updated full-power heating physical model to obtain control parameters of the instant hot water device; and controlling the operation of the instant hot water device according to the control parameters.

[0015] According to an embodiment of the present invention, the method further comprises: when it is determined that the instant hot water device is in a stable water outlet state, obtaining a current difference between an outlet water temperature and an inlet water temperature and a current inlet water flow rate of the instant hot water device.

[0016] To achieve the above-mentioned purpose, a computer-readable storage medium is proposed in an embodiment of the second aspect of the present invention, on which a model coefficient adaptation program of an instant hot drinking water device is stored. When the model coefficient adaptation program of the instant hot drinking water device is executed by a processor, the model coefficient adaptation method of the instant hot drinking water device of the above-mentioned embodiment of the present invention is implemented.

[0017] According to the computer-readable storage medium of an embodiment of the present invention, by executing the model coefficient adaptive program of the instant hot water equipment stored thereon, the actual physical characteristics of different instant hot water equipment can be identified, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water equipment, thereby achieving the best performance effect and water output experience.

[0018] To achieve the above-mentioned purpose, the model coefficient adaptive device of the instant hot drinking water equipment proposed in the embodiment of the third aspect of the present invention includes: a construction module, which is used to construct the full-power heating physical model of the instant hot drinking water equipment according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot drinking water equipment and the inlet water flow rate; an acquisition module, which is used to obtain the current difference between the outlet water temperature and the inlet water temperature of the instant hot drinking water equipment and the current inlet water flow rate when the instant hot drinking water equipment is in a stable water outlet state; and an adaptive module, which is used to adaptively correct the model coefficients of the full-power heating physical model according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate.

[0019] According to the model coefficient adaptive device of the instant hot water device of the embodiment of the present invention, a full-power heating physical model of the instant hot water device is constructed according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate through a construction module, and then, the current difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the current inlet water flow rate are obtained through an acquisition module, and the model coefficient of the full-power heating physical model is adaptively corrected according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate through an adaptive module. Thus, the model coefficient of the full-power heating physical model is adaptively corrected by using the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, so that the actual physical characteristics of different instant hot water devices are identified, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water device, and the best performance effect and water output experience are achieved.

[0020] To achieve the above-mentioned purpose, the instant hot drinking water equipment proposed in the fourth aspect of the present invention includes a water purifier, an instant heating system and a model coefficient adaptive device of the instant hot drinking water equipment of the above-mentioned embodiment of the present invention.

[0021] According to the instant hot water device of the embodiment of the present invention, by adopting the model coefficient adaptive device of the instant hot water device mentioned above, it is possible to identify the actual physical characteristics of different instant hot water devices, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water device, thereby achieving the best performance effect and water output experience.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a flow chart of a method for self-adapting model coefficients of an instant hot water drinking device according to an embodiment of the present invention;

[0024] Figure 2 is a flow chart of a method for self-adapting a model coefficient of an instant hot water drinking device according to an embodiment of the present invention;

[0025] Figure 3 is a flow chart of a method for self-adapting a model coefficient of an instant hot water drinking device according to another embodiment of the present invention;

[0026] Figure 4 is a flow chart of a method for self-adapting a model coefficient of an instant hot water drinking device according to a specific embodiment of the present invention;

[0027] Figure 5 is a block diagram of a model coefficient adaptive device for an instant hot water drinking device according to an embodiment of the present invention;

[0028] Figure 6 Schematic diagram of a block diagram of an instant hot water drinking device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following describes a model coefficient self-adaptation method for instant hot drinking water equipment, a computer-readable storage medium, a model coefficient self-adaptation device for instant hot drinking water equipment, and an instant hot drinking water equipment according to an embodiment of the present invention with reference to the accompanying drawings.

[0031] It should be understood that, on the one hand, since each component has tolerance, the total tolerance will exceed ±30%. The most direct impact of excessive tolerance is as follows: for instant hot water equipment A and instant hot water equipment B, which are at the upper tolerance limit (+30%) and lower tolerance limit (-30%), respectively, the same heating power and the same water pump working voltage are executed. The actual water outlet temperature of instant hot water equipment A is 50°C, and the actual water outlet temperature of instant hot water equipment B is 80°C. The actual water outlet temperature of the two differs by as much as 30°C. In other words, the temperature control algorithm cannot use a specific drive value to achieve an accurate target initial temperature. On the other hand, Different components may exhibit different tolerance characteristics under different temperatures, pressures, and altitudes, that is, the superimposed tolerance is a nonlinear transformation under different environments. Therefore, in some embodiments of the present invention, a model coefficient adaptive method for instant hot water equipment is proposed, which can utilize the difference between the outlet water temperature and the inlet water temperature of the instant hot water equipment and the inlet water flow rate to achieve adaptive correction of the model coefficients of the full-power heating physical model, thereby identifying the actual physical characteristics of different instant hot water equipment, making the full-power heating physical model more suitable for the actual conditions of each instant hot water equipment, and achieving the best performance effect and water output experience.

[0032] Figure 1 4 is a flow chart of a method for self-adapting model coefficients of an instant hot water drinking device according to an embodiment of the present invention.

[0033] Specifically, in some embodiments of the present invention, Figure 1 As shown, the model coefficient adaptive method of the instant hot water drinking equipment includes:

[0034] S101, constructing a full-power heating physical model of the instant hot water device according to a fitting relationship between a difference between an outlet water temperature and an inlet water temperature of the instant hot water device and an inlet water flow rate.

[0035] It is understandable that in some embodiments of the present invention, a full-power heating physical model of an instant hot water device is constructed to accurately characterize the physical relationship of a single instant hot water device:

[0036] According to the physical formula of heating in nature:

[0037] Q=Pt=cm△T……(1)

[0038] Among them, c is a constant, and △T is the difference between the outlet water temperature and the inlet water temperature (the temperature rise caused by heating the outlet water).

[0039] Substituting t=60 (seconds) into the above formula (1), we obtain:

[0040]

[0041] Since the total water weight m flowing through the instant hot water device in one minute is the flow rate v (the flow rate is defined as kg / minute), the above formula (2) can be converted to:

[0042]

[0043] Combined with the above formula (3), it can be seen that if the power P is constant, the difference △T between the outlet water temperature and the inlet water temperature is inversely proportional to the flow rate v, and v is a continuous function in the interval of △T>0. Based on the physical characteristics of the instant hot water device when heating at full power, since the basic heating physical characteristics of the instant hot water device are continuous functions, therefore, in this embodiment of the present invention, according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, a full-power heating physical model of the instant hot water device is constructed, wherein the full-power heating physical model is a polynomial function model.

[0044] Furthermore, in some embodiments of the present invention, a full-power heating physical model of the instant hot water device is constructed by the following formula:

[0045] △T=f(F)=aF 3 +bF 2 +cF+d……(4)

[0046] Among them, △T is the difference between the outlet water temperature and the inlet water temperature, F is the number of pulses corresponding to the inlet water flow rate, and a, b, c, and d are model coefficients.

[0047] It is understandable that, in this embodiment of the present invention, each instant hot water device defaults to the same full-power heating physical model when leaving the factory, and the model coefficients a, b, c, d are factory default values.

[0048] S102, obtaining a current difference between an outlet water temperature and an inlet water temperature of the instant hot water device and a current inlet water flow rate.

[0049] It can be understood that in this embodiment of the present invention, the current difference between the outlet water temperature and the inlet water temperature of the instant hot water equipment is obtained by respectively providing temperature sensors at the water outlet and the water inlet of the instant hot water equipment, and the current water inlet flow rate is obtained by providing a flow meter at the water inlet of the instant hot water equipment.

[0050] It should be noted that, in the above-mentioned embodiment of the present invention, when water flows through the flowmeter, the blades in the flowmeter will be driven to rotate by the water flow. The greater the water flow, the faster the rotation speed. The rotation of the blades will generate Hall or photoelectric signal level pulses. The faster the rotation speed, the higher the pulse frequency. Therefore, the amount of water can be calculated by the number of pulses detected by the flowmeter. For example, each falling edge pulse is equivalent to 0.42 ml of water flowing through. Conversely, when the water supply is interrupted, the flowmeter blades will stop rotating immediately and no longer generate pulse signals.

[0051] S103, adaptively correcting the model coefficients of the full-power heating physical model according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate.

[0052] It can be understood that in this embodiment of the present invention, the new coordinates of the full-power heating physical model can be obtained through the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate, and the model coefficients a, b, c, d can be adaptively corrected using the new coordinates, thereby identifying the actual physical characteristics of different instant hot water drinking equipment, making the full-power heating physical model more in line with the actual conditions of each instant hot water drinking equipment, and achieving the best performance effect and water output experience.

[0053] Specifically, in some embodiments of the present invention, Figure 2 As shown, according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate, the model coefficients of the full-power heating physical model are adaptively corrected, including:

[0054] S201, taking the current water inlet flow rate as the horizontal coordinate and the current difference between the water outlet temperature and the water inlet temperature as the vertical coordinate, constructing an updated coordinate.

[0055] Furthermore, in some embodiments of the present invention, the method further comprises: when it is determined that the instant hot water device is in a stable water outlet state, obtaining a current difference between an outlet water temperature and an inlet water temperature and a current inlet water flow rate of the instant hot water device.

[0056] For example, in this embodiment of the present invention, when the user uses the instant hot water device to discharge hot water, after the temperature rise △T and the flow meter reading F are stable, it is judged that the instant hot water device is in a stable water discharge state. At this time, the current difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the current inlet water flow rate are obtained. Then, the current inlet water flow rate (that is, the flow meter reading F) is used as the horizontal coordinate, and the current difference between the outlet water temperature and the inlet water temperature (that is, the temperature rise △T) is used as the vertical coordinate to construct the updated coordinates (F, △T). For example, the flow meter reading F is stable at 3100±100, and the temperature rise △T is stable at 88℃±2℃. Then, the updated coordinates constructed this time are (3100, 88).

[0057] S202, obtaining a plurality of preset reference horizontal coordinates and preset model coefficients, and respectively substituting the plurality of preset reference horizontal coordinates and the preset model coefficients into a full-power heating physical model to obtain a plurality of reference coordinates.

[0058] For example, in this embodiment of the present invention, it is assumed that the experimental midline data are as shown in Table 1 below:

[0059] Table 1

[0060] Temperature rise △T(℃) Flow meter pulse F 30 9000 50 5000 70 3500 90 3000

[0061] Combining the above formula (4), the factory default full-power heating physical model of instant hot water equipment is as follows:

[0062] △T=f(F)=-0.0313F 3 +7.8125F 2 -671.88F+22969……(5)

[0063] At this time, multiple preset reference horizontal coordinates 3000, 3500, 5000 and 9000 are obtained, as well as preset model coefficients a=-0.0313, b=7.8125, c=671.88, d=22969. Then, by substituting the multiple preset reference horizontal coordinates and the preset model coefficients into the full-power heating physical model respectively, multiple reference coordinates can be obtained. For example, when the instant hot water equipment is just shipped out of the factory, four reference coordinates can be obtained, namely: (9000,30), (5000,50), (3500,70), (3000,90).

[0064] S203: Replace the reference coordinates with the smallest horizontal coordinate difference between the reference coordinates and the updated coordinates with the updated coordinates.

[0065] For example, in this embodiment of the present invention, the horizontal coordinate of the updated coordinate is compared with the horizontal coordinates of the aforementioned four reference coordinates, and the reference coordinate with the smallest difference in horizontal coordinate with the updated coordinate among the multiple reference coordinates is replaced with the updated coordinate. For example, the aforementioned updated coordinate (3100, 88) is closer to the reference coordinate (3000, 90), then the reference coordinate (3000, 90) is replaced with the aforementioned updated coordinate (3100, 88).

[0066] S204: Substitute the remaining multiple reference coordinates and updated coordinates into the full-power heating physical model respectively to obtain a multivariate equation group of model coefficients corresponding to the full-power heating physical model.

[0067] For example, in this embodiment of the present invention, the remaining multiple reference coordinates (9000, 30), (5000, 50), (3500, 70) and the updated coordinate (3100, 88) can be respectively substituted into the full-power heating physical model to obtain a multivariate equation group of model coefficients corresponding to the full-power heating physical model:

[0068]

[0069] S205, solving a multivariate equation group corresponding to the model coefficients of the full-power heating physical model to obtain the model coefficients of the full-power heating physical model after adaptive correction.

[0070] It can be understood that in this embodiment of the present invention, the multivariate equation group corresponding to the model coefficients of the full-power heating physical model is solved to obtain four new values ​​of the model coefficients a, b, c, and d, thereby obtaining the model coefficients of the adaptively corrected full-power heating physical model.

[0071] Furthermore, in some embodiments of the present invention, the method further comprises: solving a multivariate equation group of model coefficients corresponding to the full-power heating physical model using Cramer's law.

[0072] It can be understood that, in this embodiment of the present invention, Cramer's law can be used to solve the multivariate equation group corresponding to the model coefficients of the full-power heating physical model.

[0073] Specifically, in the above embodiment of the present invention, the determinant formed by the coefficients of the four unknowns a, b, c, d of the equation group is called the coefficient determinant D of the equation group, that is,

[0074]

[0075] Replace the four columns in D with the four constants on the right side of the equal sign in formula (6) to obtain four new matrices:

[0076]

[0077] If the coefficient determinant of the linear equation system D≠0, then the linear equation system ⑴ has a unique solution, and its solution is

[0078]

[0079] Thus, the solution of the four unknowns a, b, c, and d is completed.

[0080] Furthermore, in some embodiments of the present invention, the method further comprises: updating the full-power heating physical model according to the model coefficients of the adaptively corrected full-power heating physical model.

[0081] It can be understood that in this embodiment of the present invention, by updating the original model coefficients of the full-power heating physical model to the model coefficients of the adaptively corrected full-power heating physical model, the full-power heating physical model of the current instant hot water drinking equipment can more accurately characterize the physical characteristics of the current instant hot water drinking equipment.

[0082] Furthermore, in the above-mentioned embodiment of the present invention, as the instant hot water drinking water device is used, the model coefficients a, b, c, d will change accordingly based on the user's usage. That is to say, after a period of use, the model coefficients a, b, c, d corresponding to each instant hot water drinking water device may be different, and the model coefficients a, b, c, d of the same instant hot water drinking water device at different usage stages may also be different. As a result, the updated full-power heating physical model is closer and closer to the actual physical characteristics of the water dispenser, and the temperature control program can more accurately realize the temperature control function, thereby obtaining the best temperature control performance and the most precise temperature control effect.

[0083] Further, in some embodiments of the present invention, Figure 3 As shown, the method also includes:

[0084] S301, obtaining a target difference between the outlet water temperature and the inlet water temperature, and substituting the target difference into an updated full-power heating physical model to obtain control parameters of the instant hot water device.

[0085] It can be understood that in this embodiment of the present invention, the target difference between the outlet water temperature and the inlet water temperature can be substituted into the updated full-power heating physical model, thereby obtaining the target flow rate of the corresponding instant hot water drinking equipment, and then obtaining the control parameters of the instant hot water drinking equipment based on the target flow rate.

[0086] S302, controlling the operation of the instant hot water device according to the control parameters.

[0087] It can be understood that in this embodiment of the present invention, the operation of the instant hot water device is controlled according to the control parameters, so that the instant hot water device operates at a target flow rate, and then, the difference between the outlet water temperature and the inlet water temperature reaches the target difference, thereby meeting the user's water demand.

[0088] Combine the following Figure 4 The specific embodiment of the present invention is to illustrate the coefficient adaptive correction process of the model coefficient adaptive method of the instant hot water drinking water device in the embodiment of the present invention. Specifically, Figure 4 As shown, after the instant hot water drinking equipment is powered on, step S1 is executed.

[0089] S1, determine whether the user's operation triggers the water supply demand, if yes, execute step S, if no, execute the end.

[0090] S2, activate the adaptive algorithm module.

[0091] S3, judging whether the instant hot water device is in a stable water outlet state, if yes, executing step S4; if no, the execution ends.

[0092] S4, using the current water inlet flow rate as the horizontal coordinate and the current difference between the outlet water temperature and the inlet water temperature as the vertical coordinate to construct an updated coordinate.

[0093] S5, obtaining a plurality of preset reference horizontal coordinates and preset model coefficients, and respectively substituting the plurality of preset reference horizontal coordinates and the preset model coefficients into the full-power heating physical model to obtain a plurality of reference coordinates.

[0094] S6, replacing the reference coordinates with the smallest horizontal coordinate difference between the reference coordinates and the updated coordinates with the updated coordinates.

[0095] S7, respectively substituting the remaining multiple reference coordinates and updated coordinates into the full-power heating physical model to obtain a multivariate equation group of model coefficients corresponding to the full-power heating physical model.

[0096] S8, using Cramer's law to solve the multivariate equation group corresponding to the model coefficients of the full-power heating physical model, to obtain the model coefficients of the full-power heating physical model after adaptive correction.

[0097] S9, updating the full-power heating physical model according to the model coefficients of the adaptively corrected full-power heating physical model.

[0098] In summary, according to the model coefficient adaptive method of the instant hot water device of the embodiment of the present invention, the full-power heating physical model of the instant hot water device is constructed according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, and then the current difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the current inlet water flow rate are obtained, and the model coefficient of the full-power heating physical model is adaptively corrected according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate. Thus, the model coefficient of the full-power heating physical model is adaptively corrected by using the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, so that the actual physical characteristics of different instant hot water devices are identified, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water device, and the best performance effect and water output experience are achieved.

[0099] Based on the model coefficient adaptation method of the instant hot drinking water equipment of the aforementioned embodiment of the present invention, the embodiment of the present invention proposes a computer-readable storage medium, on which a model coefficient adaptation program of the instant hot drinking water equipment is stored. When the model coefficient adaptation program of the instant hot drinking water equipment is executed by a processor, the model coefficient adaptation method of the instant hot drinking water equipment of the aforementioned embodiment of the present invention is implemented.

[0100] It should be understood that the specific implementation of the computer-readable storage medium in the embodiment of the present invention refers to the specific implementation of the model coefficient adaptive method of the instant hot water drinking water device in the aforementioned embodiment of the present invention, and will not be repeated here to reduce redundancy.

[0101] In summary, according to the computer-readable storage medium of an embodiment of the present invention, by executing the model coefficient adaptive program of the instant hot water equipment stored thereon, it is possible to identify the actual physical characteristics of different instant hot water equipment, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water equipment, thereby achieving the best performance effect and water output experience.

[0102] Figure 5 4 is a block diagram of a model coefficient adaptive device of an instant hot water drinking equipment according to an embodiment of the present invention.

[0103] Specifically, in some embodiments of the present invention, Figure 5 As shown, the model coefficient adaptive device 300 of the instant hot water drinking equipment includes: a construction module 10, an acquisition module 20 and an adaptive module 30.

[0104] Among them, the construction module 10 is used to construct a full-power heating physical model of the instant hot water equipment according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot water equipment and the inlet water flow rate; the acquisition module 20 is used to obtain the current difference between the outlet water temperature and the inlet water temperature of the instant hot water equipment and the current inlet water flow rate; the adaptive module 30 is used to adaptively correct the model coefficients of the full-power heating physical model according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate.

[0105] Furthermore, in some embodiments of the present invention, the construction module 10 is also used to construct a full-power heating physical model of the instant hot water device through the following formula: ΔT = f(F) = aF 3 +bF 2 +cF+d, where △T is the difference between the outlet water temperature and the inlet water temperature, F is the number of pulses corresponding to the inlet water flow rate, and a, b, c, d are model coefficients.

[0106] Furthermore, in some embodiments of the present invention, the adaptive module 30 is also used to construct an updated coordinate using the current water inlet flow rate as the horizontal coordinate and the current difference between the water outlet temperature and the water inlet temperature as the vertical coordinate; obtain multiple preset reference horizontal coordinates and preset model coefficients, and substitute the multiple preset reference horizontal coordinates and the preset model coefficients into the full-power heating physical model respectively to obtain multiple reference coordinates; replace the reference coordinate with the smallest horizontal coordinate difference with the updated coordinate among the multiple reference coordinates with the updated coordinate; substitute the remaining multiple reference coordinates and the updated coordinate into the full-power heating physical model respectively to obtain a multivariate equation group corresponding to the model coefficients of the full-power heating physical model; solve the multivariate equation group corresponding to the model coefficients of the full-power heating physical model to obtain the model coefficients of the adaptively corrected full-power heating physical model.

[0107] Furthermore, in some embodiments of the present invention, the adaptive module 30 is also used to solve the multivariate equation group of model coefficients corresponding to the full-power heating physical model using Cramer's law.

[0108] Furthermore, in some embodiments of the present invention, the adaptive module 30 is further configured to update the full-power heating physical model according to the model coefficients of the adaptively corrected full-power heating physical model.

[0109] Furthermore, in some embodiments of the present invention, the adaptive module 30 is also used to obtain a target difference between the outlet water temperature and the inlet water temperature, and substitute the target difference into the updated full-power heating physical model to obtain control parameters of the instant hot water device; and control the operation of the instant hot water device according to the control parameters.

[0110] Furthermore, in some embodiments of the present invention, the acquisition module 20 is also used to obtain the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate of the instant hot water device when it is determined that the instant hot water device is in a stable water outlet state.

[0111] It should be understood that the specific implementation of the model coefficient adaptive device of the instant hot drinking water equipment in the embodiment of the present invention corresponds one to one with the specific implementation of the model coefficient adaptive method of the instant hot drinking water equipment in the aforementioned embodiment of the present invention, and will not be repeated here to reduce redundancy.

[0112] In summary, according to the model coefficient adaptive device of the instant hot water device of the embodiment of the present invention, the full-power heating physical model of the instant hot water device is constructed according to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate through the construction module, and then, the current difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the current inlet water flow rate are obtained through the acquisition module, and the model coefficient of the full-power heating physical model is adaptively corrected according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate through the adaptive module. Thus, the model coefficient of the full-power heating physical model is adaptively corrected by using the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, so that the actual physical characteristics of different instant hot water devices are identified, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water device, and the best performance effect and water output experience are achieved.

[0113] Figure 6 Schematic diagram of a block diagram of an instant hot water drinking device according to an embodiment of the present invention.

[0114] Specifically, in some embodiments of the present invention, Figure 6 As shown, the instant hot water drinking water device 1000 includes a water purifier 100, an instant heating system 200 and a model coefficient adaptive device 300 of the instant hot water drinking water device according to the above-mentioned embodiment of the present invention.

[0115] It should be understood that the specific implementation of the instant hot water device in the embodiment of the present invention refers to the specific implementation of the model coefficient adaptive method of the instant hot water device in the embodiment of the present invention mentioned above, and will not be repeated here to reduce redundancy.

[0116] In summary, the instant hot water drinking water device according to the embodiment of the present invention, by adopting the model coefficient adaptive device of the aforementioned instant hot water drinking water device, can identify the actual physical characteristics of different instant hot water drinking water devices, so that the full-power heating physical model is more in line with the actual conditions of each instant hot water drinking water device, and achieve the best performance effect and water output experience.

[0117] 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 specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0118] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0119] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0120] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0121] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0122] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0123] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0124] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A model coefficient adaptive method for instant hot water equipment, characterized in that: The method comprises: According to the fitting relationship between the difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the inlet water flow rate, a full-power heating physical model of the instant hot water device is constructed; Obtaining the current difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the current inlet water flow rate; The model coefficients of the full-power heating physical model are adaptively modified according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate.

2. The model coefficient adaptive method of instant hot water equipment according to claim 1, characterized in that: The full-power heating physical model of the instant hot water device is constructed by the following formula: △T=f(F)=aF 3 +bF 2 +cF+d, Among them, △T is the difference between the outlet water temperature and the inlet water temperature, F is the number of pulses corresponding to the inlet water flow rate, and a, b, c, and d are model coefficients.

3. The model coefficient adaptive method of instant hot water drinking equipment according to claim 2, characterized in that: The adaptively correcting the model coefficients of the full-power heating physical model according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate includes: Taking the current water inlet flow rate as the abscissa and the current difference between the water outlet temperature and the water inlet temperature as the ordinate, constructing an updated coordinate; Acquire a plurality of preset reference horizontal coordinates and preset model coefficients, and substitute the plurality of preset reference horizontal coordinates and the preset model coefficients into the full-power heating physical model respectively to acquire a plurality of reference coordinates; Replacing the reference coordinate having the smallest horizontal coordinate difference with the update coordinate among the multiple reference coordinates with the update coordinate; Substituting the remaining multiple reference coordinates and the updated coordinates into the full-power heating physical model respectively to obtain a multivariate equation group of model coefficients corresponding to the full-power heating physical model; The multivariate equation group corresponding to the model coefficients of the full-power heating physical model is solved to obtain the model coefficients of the full-power heating physical model after adaptive correction.

4. The model coefficient adaptive method of instant hot water equipment according to claim 3, characterized in that: The method further comprises: The multivariate equation group of model coefficients corresponding to the full-power heating physical model is solved using Cramer's law.

5. The method for self-adapting model coefficients of the instant hot water device according to any one of claims 1 to 4, characterized in that: The method further comprises: The full-power heating physical model is updated according to the model coefficients of the adaptively corrected full-power heating physical model.

6. The model coefficient adaptive method of instant hot water drinking equipment according to claim 5, characterized in that: The method further comprises: Obtaining a target difference between the outlet water temperature and the inlet water temperature, and substituting the target difference into an updated full-power heating physical model to obtain control parameters of the instant hot water device; The instant hot water device is controlled to operate according to the control parameters.

7. The model coefficient adaptive method of instant hot water drinking equipment according to claim 1, characterized in that: The method further comprises: When it is determined that the instant hot water device is in a stable water outlet state, a current difference between the outlet water temperature and the inlet water temperature and a current inlet water flow rate of the instant hot water device are obtained.

8. A computer-readable storage medium, characterized in that: A model coefficient self-adaptation program of the instant hot drinking water device is stored thereon, and when the model coefficient self-adaptation program of the instant hot drinking water device is executed by the processor, the model coefficient self-adaptation method of the instant hot drinking water device as described in any one of claims 1-7 is implemented.

9. A model coefficient adaptive device for instant hot water drinking equipment, characterized in that: The device comprises: A construction module, for constructing a full-power heating physical model of the instant hot water device according to a fitting relationship between a difference between an outlet water temperature and an inlet water temperature of the instant hot water device and an inlet water flow rate; An acquisition module, used to acquire the current difference between the outlet water temperature and the inlet water temperature of the instant hot water device and the current inlet water flow rate; The adaptive module is used to adaptively correct the model coefficients of the full-power heating physical model according to the current difference between the outlet water temperature and the inlet water temperature and the current inlet water flow rate.

10. An instant hot water drinking device, characterized in that: The instant hot drinking water equipment comprises a water purifier, an instant heating system and a model coefficient self-adapting device for the instant hot drinking water equipment as claimed in claim 9.

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