WO2022083403A1

WO2022083403A1 - Method and apparatus for instantaneous drinking water device, and processor and storage medium

Info

Publication number: WO2022083403A1
Application number: PCT/CN2021/120194
Authority: WO
Inventors: 陈蔚; 魏中科; 全永兵
Original assignee: 佛山市顺德区美的饮水机制造有限公司
Priority date: 2020-10-23
Filing date: 2021-09-24
Publication date: 2022-04-28
Also published as: CN112369920A; CN112369920B

Abstract

A method and apparatus for an instantaneous drinking water device, and a processor and a storage medium. The method comprises: acquiring the temperature of residual water remaining in an instantaneous drinking water device and the temperature of substandard water, the temperature of which does not reach a target water taking temperature, output by the instantaneous drinking water device during a temperature raising process (S102); according to the temperature of the residual water and the temperature of the substandard water, determining that the temperature of first mixed water is less than the target water taking temperature, wherein the first mixed water is water obtained by means of mixing the residual water and the substandard water (S104); outputting compensation water so as to be mixed with the first mixed water, wherein the temperature of the compensation water is greater than the target water taking temperature (S106); and performing temperature control on output water of the instantaneous drinking water device, so as to control an output water temperature to be the target water taking temperature (S108). By means of the method, temperature errors can be reduced.

Description

Method, processor, apparatus and storage medium for instant drinking water equipment

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of Chinese patent application 202011148920.X filed on October 23, 2020, the contents of which are incorporated herein by reference.

technical field

The present invention relates to the technical field of household appliances, in particular to a method, a processor, a device and a storage medium for instant hot water drinking equipment.

Background technique

Existing instant drinking water equipment usually uses PID algorithm to control the water temperature of the drinking water equipment. Specifically, the temperature of the output water is adjusted according to the inlet water temperature, so that the temperature of the output water reaches the target temperature required by the user. In real life scenarios, when the hot water drinking equipment is in the standby state, some unheated water remains in the pipeline and cannot be heated. Affected by this part of the water, the temperature of the water actually obtained by the user is usually lower than the target. temperature, there is a problem of large temperature error.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present invention is to provide a method, a processor, a device, an instant water drinking device and a storage medium for instant hot water drinking equipment, so as to solve the problems of existing methods for instant hot drinking water equipment. The problem of large temperature error.

In order to achieve the above object, a first aspect of the present invention provides a method for instant hot water drinking equipment, comprising:

Obtain the temperature of the residual water remaining in the instant drinking water equipment and the temperature of the substandard water that the output temperature of the instant drinking water equipment does not reach the target water intake temperature during the temperature rise process;

According to the temperature of the residual water and the temperature of the substandard water, it is determined that the temperature of the first mixed water is lower than the target water intake temperature, wherein the first mixed water is the water obtained by mixing the residual water and the substandard water;

outputting compensation water for mixing with the first mixed water, wherein the temperature of the compensation water is higher than the target intake water temperature; and

The temperature of the outlet water of the instant drinking water equipment is controlled to control the outlet water temperature at the target water intake temperature.

In the embodiment of the present invention, determining that the temperature of the first mixed water is lower than the target water intake temperature according to the temperature of the residual water and the temperature of the substandard water includes: obtaining the amount of the residual water and the amount of the substandard water; according to the amount of the residual water , the amount of substandard water, the temperature of residual water and the temperature of substandard water to obtain the temperature of the first mixed water; determine that the temperature of the first mixed water is lower than the target water intake temperature.

In the embodiment of the present invention, the amount of substandard water includes determining according to the following formula (1):

Among them, V _{does not meet} the standard is the volume of water that does not meet the standard, t ₀ is the time for the temperature to rise to the target water intake temperature,

is the pump speed of the water pump, u _t is the real-time driving value of the water pump, u ₁ and u ₀ are the voltages corresponding to two discrete data points adjacent to the real-time driving value u _t according to the flow curve query, v ₁ and v ₀ are respectively Flow values corresponding to u ₁ and u ₀ .

In the embodiment of the present invention, according to the amount of residual water, the amount of substandard water, the temperature of residual water and the temperature of substandard water, the temperature of the first mixed water is obtained, including determining according to the following formula (2):

Wherein, T _mix1 is the temperature of the first mixed water, V is the volume of _residual water, V _{is not up to standard} is the volume of water that is not up to standard, T is the temperature of _residual water, and T _{is not up to standard} is the temperature of water that is not up to standard.

In the embodiment of the present invention, outputting the compensation water to be mixed with the first mixed water includes: determining the amount of the compensation water according to the preset water intake, the amount of the remaining water, and the amount of the substandard water; outputting the determined amount of the compensation water to be mixed with the first mixed water.

In an embodiment of the present invention, the above method further includes: determining the temperature of the compensation water according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water.

In the embodiment of the present invention, the temperature of the compensation water is determined according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water, including determining according to the following formula (3):

Among them, T _com is the temperature of the compensation water, V is the volume of _residual water, V is the volume of water that _{does not meet} the standard, T _tar is the target water intake temperature, T _mix1 is the temperature of the first mixed water, and V _com is the compensation water volume of.

A second aspect of the present invention provides a processor configured to perform the above-described method for a hot water drinking device.

A third aspect of the present invention provides a device for instant hot water drinking equipment, comprising:

Temperature sensor to detect the temperature of residual water and/or the temperature of substandard water;

heating equipment for heating incoming water; and

The processor, configured as:

In the embodiment of the present invention, the processor is further configured to: obtain the amount of residual water and the amount of water that does not meet the standard; obtain the amount of water that does not meet the standard, the amount of water that does not meet the standard, the temperature of the residual water, and the temperature of the water that does not meet the standard. The temperature of the first mixed water; it is determined that the temperature of the first mixed water is lower than the target water intake temperature.

In this embodiment of the present invention, the processor is further configured to: determine the amount of substandard water according to the following formula (1):

In this embodiment of the present invention, the processor is further configured to: determine the temperature of the first mixed water according to the following formula (2):

In the embodiment of the present invention, the processor is further configured to: determine the amount of compensation water according to the preset amount of water intake, the amount of residual water, and the amount of substandard water; output the determined amount of compensation water to mix with the first water mix.

In the embodiment of the present invention, the processor is further configured to: determine the temperature of the compensation water according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water.

In the embodiment of the present invention, the processor is further configured to: determine the temperature of the compensation water according to the following formula (3):

A fourth aspect of the present invention provides an instant hot water drinking device, comprising the above-mentioned device for the instant hot water drinking device.

A fifth aspect of the present invention provides a machine-readable storage medium having instructions stored thereon, the instructions, when executed by a processor, cause the processor to execute the above-mentioned method for a hot water drinking device.

The above method for instant drinking water equipment, for the residual water that is output to the water outlet before being heated in the instant drinking water equipment and the water whose temperature is not up to the standard output during the temperature rise process, by obtaining the remaining water in the instant drinking water equipment. The temperature of the residual water in the middle and the temperature of the non-standard water output by the instant hot drinking water equipment that does not reach the target water intake temperature during the temperature rise process, according to the temperature of the residual water and the temperature of the non-standard water, determine the mixing of the residual water and the non-standard water The temperature of the obtained first mixed water is lower than the target water intake temperature, so that the compensation water whose temperature is higher than the target water intake temperature is output to be mixed with the first mixed water to perform temperature compensation for the residual water and substandard water. The above method solves the problem of temperature deviation between the temperature of the water actually obtained by the user and the target water intake temperature. After the temperature compensation is completed, the temperature of the outlet water of the instant drinking water equipment is controlled to stabilize the outlet water temperature at the target water intake temperature, so that the user can Obtain the water in the cup that meets the target water intake temperature, and meet the user's demand for higher temperature accuracy.

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached image:

1 is a schematic flowchart of a method for an instant hot water drinking device according to an embodiment of the present invention;

2 is a schematic flowchart of the steps of determining that the temperature of the first mixed water is less than the target water intake temperature according to the temperature of the residual water and the temperature of the substandard water according to the embodiment of the present invention;

3 is a schematic flowchart of a step of outputting compensation water to be mixed with first mixed water according to an embodiment of the present invention;

4 is a schematic flowchart of a method for an instant hot water drinking device according to another embodiment of the present invention;

FIG. 5 is a structural block diagram of an apparatus for instant hot water drinking equipment according to an embodiment of the present invention.

Detailed ways

The specific implementations of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention.

For the instant hot water drinking equipment, the user waits for a short time to draw water, for example, about 3s. The heating power of the heating device is usually limited, and it takes a certain amount of time to heat up to the target water intake temperature. Therefore, during the period when the temperature of the water in the heating device reaches the target water intake temperature, a part of the water that does not meet the standard temperature is pumped out to the water outlet in advance. In addition, before the instant hot drinking water device receives the user's instruction to draw water, some unheated water remains in the water outlet pipeline of the instant hot drinking water device. Usually, it is output to the user's water dispenser in the future when it is heated. Therefore, there is a certain temperature deviation between the temperature of the water in the cup actually obtained by the user and the target water intake temperature, and there is a problem that the temperature accuracy is not high.

Due to the temperature deviation, on the one hand, for scenarios with specific water requirements, such as tea, milk, coffee and other scenarios that require high water temperature, it often has a bad impact on the taste of these drinks and reduces the user's drinking water. experience; on the other hand, the inaccurate water temperature may also cause the nutritional value of the drink to be ineffective, or be destroyed and lead to waste. Therefore, how to ensure that the instant water drinking equipment can provide water with high temperature accuracy has become an urgent problem to be solved.

In order to solve the above problem, an embodiment of the present invention provides a method for an instant hot water drinking device. FIG. 1 is a schematic flowchart of a method for an instant hot water drinking device according to an embodiment of the present invention. As shown in Figure 1, in an embodiment of the present invention, a method for an instant hot water drinking device is provided. Taking the method applied to a processor as an example, the method may include the following steps:

Step S102 , obtaining the temperature of the residual water remaining in the instant drinking water device and the temperature of the substandard water whose temperature output by the instant drinking water device does not reach the target water intake temperature during the temperature rise process.

It can be understood that the residual water is the water left in the water outlet pipeline of the instant drinking water device before receiving the water drawing instruction, and it can be the part of the pipeline between the temperature sensor of the water outlet pipeline and the water outlet. The residual water can also be the water remaining in the water outlet pipeline that the instant water drinking equipment could not output when the water was drawn last time. The water that does not meet the standard is the water whose temperature output by the heating device does not meet the target water intake temperature during the heating process, and the temperature of the non-standard water is lower than the target water intake temperature. Among them, the temperature of the residual water and the temperature of the substandard water can be detected by the temperature sensor of the water outlet pipeline.

The target water intake temperature is the temperature of the water required or expected by the user, which can be obtained through a water intake instruction triggered or clicked by the user, or a pre-stored default temperature setting value can be obtained. The temperature can also be a set temperature that is changed according to the time, season or location. For example, the water intake temperature of the normal temperature water gear in winter and summer can be different.

Specifically, when receiving the water drawing instruction triggered by the user, and the heating device is not activated at this time, the processor can obtain the temperature of the residual water retained in the instant drinking water equipment detected by the temperature sensor of the water outlet pipe, or obtain the The time interval between one water intake and the current water intake and the target temperature of the last water intake are used to determine the temperature of the remaining water according to a specific algorithm. After starting the water pump and the heating device, the processor obtains the temperature of the substandard water that does not reach the target water intake temperature and that the temperature output by the heating device gradually increases during the temperature rise detected by the temperature sensor of the water outlet pipeline.

Step S104, according to the temperature of the residual water and the temperature of the substandard water, it is determined that the temperature of the first mixed water is lower than the target water intake temperature, wherein the first mixed water is the water obtained by mixing the residual water and the substandard water.

It can be understood that the first mixed water is water obtained by mixing residual water and substandard water.

Specifically, the processor determines the temperature of the first mixed water obtained by mixing the residual water and the non-standard water according to the obtained temperature of the residual water and the temperature of the non-standard water, and compares the temperature of the first mixed water with the target water intake temperature , thereby determining that the temperature of the first mixed water is lower than the target water intake temperature.

Step S106, outputting the compensation water to be mixed with the first mixed water, wherein the temperature of the compensation water is higher than the target water intake temperature.

It can be understood that the compensation water is the water output from the heating device whose temperature is higher than the target water intake temperature, and is used to perform temperature compensation for the residual water and substandard water whose temperature is lower than the target water intake temperature, so as to meet the user's expectation and obtain the target water intake temperature. water demand.

Specifically, in the case where it is determined that the temperature of the first mixed water is lower than the target water intake temperature, the processor controls the heating device of the instant drinking water equipment to output compensation water whose temperature is higher than the target water intake temperature, so as to mix the remaining water and the substandard water. The temperature of the first mixed water obtained later is subjected to temperature compensation, and the temperature of the water after the compensation water is mixed with the first mixed water meets the target water intake temperature or is located near the target water intake temperature.

In step S108, temperature control is performed on the outlet water of the instant water drinking equipment, so as to control the outlet water temperature at the target water intake temperature.

It can be understood that the temperature control method can adopt PID control, Active Disturbance Rejection Control (ADRC) and the like.

Specifically, after the processor completes the temperature compensation for the residual water and the non-standard water, the PID control algorithm or the active disturbance rejection control algorithm can be used to adjust the outlet water temperature of the instant drinking water equipment, so as to stabilize the outlet water temperature at the target water intake temperature, Further, the processor dynamically adjusts the power of the heating device and the water inlet flow according to the feedback of the water outlet temperature, so as to obtain water that reaches the target water intake temperature (or near the target water intake temperature).

In one embodiment, as shown in FIG. 2 , according to the temperature of the residual water and the temperature of the substandard water, it is determined that the temperature of the first mixed water is lower than the target water intake temperature, including the following steps:

In step S202, the amount of residual water and the amount of substandard water are obtained.

It can be understood that the amount of residual water can be a pre-stored fixed value, can also be detected by a water flow sensor, or can be obtained by geometric modeling. The amount of substandard water can be determined by a specific algorithm.

In one embodiment, the amount of substandard water comprises determining according to the following formula (1):

understandably,

In order to obtain the pump speed of the pump from the start of the pump to the time when the water outlet temperature reaches the target water intake temperature, it can be obtained by interpolating the pump flow curve. v ₁ , v ₀ and u ₁ , u ₀ query the values of the two nearest discrete data points in the flow curve of the pump according to the real-time driving value _ut of the pump. Among them, the flow curve of the water pump is a graph in which the flow increases with the increase of the voltage.

In this embodiment, the amount of substandard water is determined through a specific algorithm, and additional hardware is not required in the process of determining the amount of substandard water, which can reduce hardware costs while ensuring accuracy.

Specifically, the processor obtains the amount of residual water detected by the water flow sensor of the water outlet pipeline or the amount of residual water obtained by geometric modeling, and integrates the pump speed of the water pump determined based on the driving value of the water pump during the temperature rise period , to determine the amount of substandard water during this period.

In step S204, the temperature of the first mixed water is obtained according to the amount of residual water, the amount of water that does not meet the standard, the temperature of the residual water, and the temperature of the water that does not meet the standard.

Specifically, the processor may determine the temperature of the first mixed water according to the amount of residual water, the amount of substandard water, the temperature of residual water, and the temperature of substandard water based on a specific algorithm model.

In one embodiment, the temperature of the first mixed water is obtained according to the amount of residual water, the amount of substandard water, the temperature of residual water, and the temperature of substandard water, including determining according to the following formula (2):

Formula (2) can be derived from the following formulas (2-1) and (2-2), and can be obtained according to the law of conservation of energy:

Therefore, we can get:

V _surplus (T _{mix1 -} T _surplus ) = V _substandard (T _substandard - T _mix1 ) Formula (2-2)

In formula (2-1), T _{does not meet the standard} represents the real-time temperature of the outflowing water detected by the outlet water temperature sensor in the process of temperature rise, _Cw is the specific heat capacity of water, and _ρw is the density of water.

The water outlet process of the instant hot drinking water equipment can be controlled by a single chip microcomputer. The water outlet process itself has a certain control step, generally 20ms. In each execution step, the pump flow remains unchanged, that is, the heating power of the heat pipe remains unchanged. Therefore, the integral term related to water that does not meet the standard can be discretized into the following formula (2-3) to solve:

In this embodiment, based on the determined amount of residual water, the amount of water that does not meet the standard, the temperature of the residual water, and the temperature of the water that does not meet the standard, the temperature of the first mixed water can be determined through a specific algorithm, thereby reducing the temperature error and increasing the temperature. The precision of the control process.

Step S206, it is determined that the temperature of the first mixed water is lower than the target water intake temperature.

In this embodiment, the temperature of the first mixed water is determined according to the amount of residual water, the amount of water that does not meet the standard, the temperature of the residual water, and the temperature of the water that does not meet the standard by obtaining the amount of residual water and the amount of water that does not meet the standard, and Compare the temperature of the first mixed water with the target water intake temperature, determine that the temperature of the first mixed water is lower than the target water intake temperature, introduce the amount of residual water and the corresponding temperature, the amount of water that does not meet the standard and the corresponding temperature, so as to accurately determine the residual water The temperature of the first mixed water after mixing with the substandard water to achieve the accuracy of the temperature control process.

In one embodiment, as shown in Figure 3, outputting the compensation water to be mixed with the first mixed water includes the following steps:

Step S302: Determine the amount of compensation water according to the preset amount of water intake, the amount of residual water, and the amount of water that does not meet the standard.

It can be understood that the preset water intake is the pre-set water output of the instant water drinking device at one time, wherein the amount can be volume, such as 120ml, or mass, such as 120g.

Specifically, the processor determines the amount of compensation water according to the preset amount of water intake, the amount of residual water, and the amount of non-standard water. Further, the amount of compensation water is the preset amount of water intake minus the amount of residual water and the amount of non-standard water. , where the amount can be either volume or mass.

When the amount is volume, set the total volume of water in the user's cup to reach the preset water intake, and complete the compensation, so that the water temperature in the cup is the set target water intake temperature, and the volume of the compensated water is the preset water intake The volume minus the volume of residual water and the volume of water that does not meet the standard can be found in the following formula (2-4):

V _com =V _all - V _remainder - V _substandard formula (2-4)

Among them, V _com is the volume of compensation water, V _all is the preset volume of water taken, V is the volume of _residual water, and V _{is not up to standard} is the volume of water that is not up to standard.

When the equivalent is mass, the density of water is introduced on the basis of formula (2-4), and the quality of compensation water is the pre-set water quality minus the quality of residual water and the quality of substandard water. For details, please refer to the following formula (2- 5):

m _com =m _all -m _remainder -m _substandard formula (2-5)

Among them, m _com is the quality of the compensation water, m _all is the preset water quality, m _excess is the quality of the residual water, and m is the quality of the water that does not _meet the standard.

Step S304, outputting a determined amount of compensation water to be mixed with the first mixed water.

Specifically, the processor can control the power of the water pump of the drinking water equipment, thereby controlling the influent flow, determine the compensation time according to the determined amount of compensation water and the influent flow, and determine the output compensation when the running time reaches the compensation time The amount of water reaches the determined amount of compensation water to achieve mixing with the residual water pumped in advance and the water whose temperature does not meet the standard during the heating process, so as to obtain the target water intake temperature or water close to the target water intake temperature.

It can be understood that the volume and temperature of the residual water and the substandard water have been known, and the final temperature of the water in the user's cup is determined by the temperature after the residual water, substandard water and compensation water are evenly mixed.

In this embodiment, the amount of compensation water is determined according to the preset amount of water intake, the amount of residual water and the amount of non-standard water, and the compensation water whose temperature is higher than the target water intake temperature is output according to the amount of compensated water to match the amount of residual water and substandard water. The first mixed water is mixed with the mixed water to reduce temperature deviation and achieve precise temperature control.

In one embodiment, outputting the compensation water to be mixed with the first mixed water further includes: determining the compensation water according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water temperature.

Specifically, the processor determines the temperature of the heated compensation water according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water.

In this embodiment, by determining the temperature of the compensation water, so as to adjust the power of the heating device and the power of the water pump through a control algorithm such as PID control, so as to output the water that meets the temperature of the compensation water, and realize the mixing with the residual water and the substandard water, Then, water that satisfies the target water intake temperature is obtained.

In one embodiment, the temperature of the compensation water is determined according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water, including determining according to the following formula (3):

In this embodiment, the amount of compensation water is known, the target temperature of the water in the user's cup is known, the amounts of remaining water and substandard water are known, and the temperature of the first mixed water is known. The temperature of the compensation water required for the positive compensation is determined by the known quantity, so as to control the hot drinking water equipment to normally heat the water according to the determined temperature of the compensation water, so as to realize the positive compensation for the temperature of the residual water and the temperature of the water that does not meet the standard.

In one embodiment, as shown in FIG. 4 , a method for instant hot water drinking equipment is provided. Taking the method applied to a processor as an example, the method may include the following steps:

Step S401 , obtaining the temperature of the residual water remaining in the instant drinking water device and the temperature of the substandard water outputted by the instant drinking water device during the temperature rise process that does not reach the target water intake temperature.

Specifically, when receiving the water drawing instruction triggered by the user, the water pump and the heating device are not started at this time, the processor can obtain the temperature of the residual water retained in the instant drinking water equipment detected by the temperature sensor of the water outlet pipeline, or Obtain the time interval between the last water intake and the current water intake and the target temperature of the last water intake, and determine the temperature of the remaining water according to a specific algorithm. After starting the water pump and the heating device, the processor obtains the temperature of the substandard water that does not reach the target water intake temperature and the temperature gradually increases during the temperature rise detected by the temperature sensor of the water outlet pipeline.

In step S402, the amount of residual water and the amount of substandard water are obtained.

In step S403, the temperature of the first mixed water is obtained according to the amount of residual water, the amount of water that does not meet the standard, the temperature of the residual water, and the temperature of the water that does not meet the standard.

Wherein, the first mixed water is water obtained by mixing residual water and substandard water.

Step S404, it is determined that the temperature of the first mixed water is lower than the target water intake temperature.

Step S405: Determine the amount of compensation water according to the preset amount of water intake, the amount of residual water, and the amount of water that does not meet the standard.

Step S406, outputting a determined amount of compensation water to be mixed with the first mixed water.

The temperature of the compensation water is higher than the target water intake temperature.

Specifically, the processor can control the power of the water pump of the drinking water equipment, thereby controlling the influent flow, determine the compensation time according to the determined amount of compensation water and the influent flow, and determine the output compensation when the running time reaches the compensation time The amount of water reaches the determined amount of compensation water to achieve mixing with the residual water pumped in advance and the water whose temperature does not meet the standard during the heating process, so as to obtain the target water intake temperature or water close to the target water intake temperature. It can be understood that the final temperature of the water in the user's cup is determined by the temperature of the remaining water, the substandard water and the compensation water after mixing evenly.

Step S407: Determine the temperature of the compensation water according to the amount of remaining water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water.

Specifically, the processor determines the temperature of the heated compensation water according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water. Further, by determining the temperature of the compensation water, the power of the heating device and the power of the water pump can be adjusted through control algorithms such as PID control, so as to output water that meets the temperature of the compensation water, and realize the mixing with the residual water and the substandard water, and then obtain Water that meets the target water intake temperature.

In step S408, temperature control is performed on the outlet water of the instant water drinking equipment, so as to control the outlet water temperature at the target water intake temperature.

Specifically, after the processor completes the temperature compensation for the residual water and the water that does not meet the standard, the PID control algorithm or the Active Disturbance Rejection Control (ADRC) algorithm can be used to adjust the outlet water temperature of the instant drinking water equipment to make The outlet water temperature is stabilized at the target water intake temperature. Further, the processor dynamically adjusts the power of the heating device and the water inlet flow rate according to the feedback of the outlet water temperature to obtain water that reaches the target water intake temperature (or near the target water intake temperature).

In this embodiment, the compensation water whose temperature is higher than the temperature of the first mixed water is output, wherein the first mixed water is the water obtained by mixing the residual water and the substandard water, so as to reduce the residual water of the instant drinking water equipment. It performs positive temperature compensation with the water whose output temperature does not meet the standard during the temperature rise process, which solves the problem of temperature deviation between the temperature of the water actually obtained by the user and the target water intake temperature. Perform temperature control to stabilize the outlet water temperature at the target water intake temperature, so that the user can obtain water that meets the target water intake temperature and meet the user's demand for higher temperature accuracy.

In one embodiment, as shown in FIG. 5, an apparatus for instant drinking water equipment is provided, comprising: a temperature sensor 502, a heating device 504, and a processor 506, wherein:

The temperature sensor 502 is used to detect the temperature of the residual water and/or the temperature of the water that does not meet the standard.

Among them, the temperature sensor is located in the water outlet pipeline, and monitors the water flow through the section of the water outlet pipeline, and can detect the temperature of the residual water and/or the water that does not meet the standard.

The heating device 504 is used to heat the input water.

Specifically, the heating device heats the input water, and uses compensation water whose output temperature is higher than the target water intake temperature to perform temperature compensation on the first mixed water after mixing the residual water and the substandard water.

The processor 506 is configured to: obtain the temperature of the residual water remaining in the instant drinking water equipment and the temperature of the substandard water whose temperature output by the instant drinking water equipment does not reach the target water intake temperature during the temperature rise process; The temperature and the temperature of the substandard water, it is determined that the temperature of the first mixed water is less than the target water intake temperature, wherein the first mixed water is the water obtained by mixing the residual water and the substandard water; the compensation water is output to be mixed with the first mixed water, wherein , the temperature of the compensation water is higher than the target water intake temperature; and the temperature of the outlet water of the instant drinking water equipment is controlled to control the outlet water temperature at the target water intake temperature.

It can be understood that the residual water is the water left in the water outlet pipeline of the instant drinking water device before receiving the water drawing instruction, and it can be the part of the pipeline between the temperature sensor of the water outlet pipeline and the water outlet. The residual water can also be the water remaining in the water outlet pipeline that was not output by the instant water drinking equipment when the water was drawn last time. The water that does not meet the standard is the water whose temperature output by the heating device does not meet the target water intake temperature during the heating process, and the temperature of the non-standard water is lower than the target water intake temperature. Among them, the temperature of the residual water and the temperature of the substandard water can be detected by the temperature sensor of the water outlet pipeline.

The first mixed water is the water obtained by mixing residual water and substandard water. The target water intake temperature is the temperature of the water that the user needs or expects, which can be obtained through the water intake command triggered or clicked by the user, or the pre-stored default temperature setting value can be obtained. The default temperature setting value can be the water intake temperature when the user last took water, It can also be a set temperature that is changed according to the time, season or location, for example, the water intake temperature of the normal temperature water gear is different in winter and summer.

Compensation water is the water output from the heating device whose temperature is higher than the target water intake temperature. It is used to perform temperature compensation for the residual water and substandard water whose temperature is lower than the target water intake temperature, so as to meet the user's expectation of obtaining water that meets the target water intake temperature. need.

Specifically, when receiving the water drawing instruction triggered by the user, the water pump and the heating device are not started at this time, the processor can obtain the temperature of the residual water retained in the instant drinking water equipment detected by the temperature sensor of the water outlet pipeline, or Obtain the time interval between the last water intake and the current water intake and the target temperature of the last water intake, and determine the temperature of the remaining water according to a specific algorithm. After starting the water pump and the heating device, the processor obtains the temperature of the substandard water that the temperature output by the heating device gradually increases during the temperature rise detected by the temperature sensor of the water outlet pipeline.

Further, the processor determines the temperature of the first mixed water obtained after mixing the residual water and the non-standard water according to the obtained temperature of the residual water and the temperature of the non-standard water, and compares the temperature of the first mixed water with the target water intake temperature. , thereby determining that the temperature of the first mixed water is lower than the target water intake temperature. In the case where it is determined that the temperature of the first mixed water is lower than the target water intake temperature, the processor controls the heating device of the instant drinking water equipment to output compensation water whose temperature is higher than the target water intake temperature, so as to adjust the residual water and the substandard water obtained after mixing The temperature of the first mixed water is subjected to temperature compensation, and the temperature of the water after the compensation water is mixed with the first mixed water meets the target water intake temperature or is located near the target water intake temperature.

After the processor completes the temperature compensation for the residual water and substandard water, the PID control algorithm or the active disturbance rejection control algorithm can be used to adjust the outlet water temperature of the instant drinking water equipment, so as to stabilize the outlet water temperature at the target water intake temperature, and further, The processor dynamically adjusts the power of the heating device and the water inlet flow according to the feedback of the water outlet temperature, and obtains water that reaches the target water intake temperature (or near the target water intake temperature).

The device in this embodiment, for the residual water in the instant drinking water equipment that is output to the water outlet before being heated and the water whose temperature is not up to the standard during the temperature rise process, obtains the residual water retained in the instant drinking water equipment by obtaining the residual water. In the process of temperature rise, the output temperature of the instant drinking water equipment does not reach the target water intake temperature. The temperature of the first mixed water is lower than the target water intake temperature, so that the compensation water whose temperature is higher than the target water intake temperature is output to be mixed with the first mixed water to perform temperature compensation for the residual water and the substandard water. The above method solves the problem of temperature deviation between the temperature of the water actually obtained by the user and the target water intake temperature. After the temperature compensation is completed, the temperature of the outlet water of the instant drinking water equipment is controlled to stabilize the outlet water temperature at the target water intake temperature, so that the user can Obtain water that meets the target water intake temperature to meet the user's demand for higher temperature accuracy.

In one embodiment, the processor 506 is further configured to: obtain the amount of residual water and the amount of non-standard water; according to the amount of residual water, the amount of non-standard water, the temperature of residual water and the temperature of non-standard water, obtain The temperature of the first mixed water; it is determined that the temperature of the first mixed water is lower than the target water intake temperature.

It can be understood that the amount of residual water can be detected by the water flow sensor, and can also be obtained by geometric modeling. The amount of substandard water can be determined by a specific algorithm.

Specifically, the processor obtains the amount of residual water detected by the water flow sensor of the water outlet pipeline or the amount of residual water obtained by geometric modeling, and integrates the pump speed of the water pump determined based on the driving value of the water pump during the temperature rise period , to determine the amount of substandard water during this period. The processor may determine the temperature of the first mixed water according to the amount of residual water, the amount of substandard water, the temperature of the residual water, and the temperature of substandard water based on a specific algorithm model. Further, the processor determines the temperature of the first mixed water obtained after mixing the residual water and the non-standard water according to the obtained temperature of the residual water and the temperature of the non-standard water, and compares the temperature of the first mixed water with the target water intake temperature. , thereby determining that the temperature of the first mixed water is lower than the target water intake temperature.

In the device in this embodiment, the processor further determines the first mixture according to the amount of residual water, the amount of non-standard water, the temperature of residual water and the temperature of non-standard water by acquiring the amount of residual water and the amount of non-standard water. water temperature, and compare the temperature of the first mixed water with the target water intake temperature, determine that the temperature of the first mixed water is less than the target water intake temperature, introduce the amount of residual water and the corresponding temperature, the amount of substandard water and the corresponding temperature, thereby Accurately determine the temperature of the first mixed water after mixing the residual water and the substandard water, so as to achieve the accuracy of the temperature control process.

In one embodiment, the processor 506 is further configured to: determine the amount of substandard water according to the following formula (1):

understandably,

In the device in this embodiment, the processor further determines the amount of water that does not meet the standard through a specific algorithm. In the process of determining the amount of water that does not meet the standard, no additional hardware is required, and the accuracy can be ensured while reducing hardware cost.

In one embodiment, the processor 506 is further configured to: determine the temperature of the first mixed water according to the following formula (2):

Therefore, we can get:

The water outlet process of the instant hot drinking water equipment can be controlled by the single-chip microcomputer. The water outlet process itself has a certain control step, generally 20ms. In each execution step, the pump flow remains unchanged, that is, the heating power of the heat pipe remains unchanged. Therefore, the integral term related to water that does not meet the standard can be discretized into the following formula (2-3) to solve:

In the device in this embodiment, the processor can further determine the temperature of the first mixed water through a specific algorithm based on the determined amount of residual water, the amount of substandard water, the temperature of residual water, and the temperature of substandard water, thereby reducing Temperature error, improve the accuracy of temperature control process.

In one embodiment, the processor 506 is further configured to: determine the amount of compensation water according to the preset water intake, the amount of residual water, and the amount of substandard water; and output the determined amount of compensation water to mix with the first water mix.

V _com =V _all - V _remainder - V _substandard formula (2-4)

m _com =m _all -m _remainder -m _substandard formula (2-5)

Further, the processor can control the power of the water pump of the drinking water equipment, thereby controlling the influent water flow, determine the compensation time according to the determined compensation water amount and the influent flow rate, and determine the output compensation when the running time reaches the compensation time. The amount of water reaches the determined amount of compensation water to achieve mixing with the residual water pumped in advance and the water whose temperature does not meet the standard during the heating process, so as to obtain the target water intake temperature or water close to the target water intake temperature.

The device in this embodiment determines the amount of compensation water according to the preset amount of water intake, the amount of residual water and the amount of water that does not meet the standard, and outputs compensation water whose temperature is higher than the target intake water temperature according to the amount of compensation water. The first mixed water after the water that does not meet the standard is mixed to reduce temperature deviation and achieve precise temperature control.

In one embodiment, the processor 506 is further configured to: determine the temperature of the compensation water according to the amount of residual water, the amount of substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of compensation water.

In the device in this embodiment, the processor further determines the temperature of the compensation water, so as to adjust the power of the heating device and the power of the water pump through a control algorithm such as PID control, so as to output water that meets the temperature of the compensation water, and realizes the difference between the residual water and the water. Mix the water that meets the standard, and then obtain water that meets the target water intake temperature.

In one embodiment, the processor 506 is further configured to: determine the temperature of the compensation water according to the following formula (3):

In the device in this embodiment, the amount of compensation water is known, the target temperature of the water in the user's cup is known, the amounts of residual water and substandard water are known, and the temperature of the first mixed water is known, the above-mentioned determination can be made Each known quantity determines the temperature of the compensation water required for the forward compensation, so as to control the hot water drinking equipment to normally heat the water according to the determined temperature of the compensation water, and realize the positive compensation for the temperature of the residual water and the temperature of the water that does not meet the standard. .

The above-mentioned apparatus for instant hot water drinking equipment includes a processor and a memory, the processor includes a kernel, and the kernel retrieves the corresponding program unit from the memory. The kernel can be set to one or more, and the temperature error can be reduced by adjusting the kernel parameters.

Memory may include non-persistent memory in computer readable media, random access memory (RAM) and/or non-volatile memory, such as read only memory (ROM) or flash memory (flash RAM), the memory including at least one memory chip.

An embodiment of the present invention provides a processor configured to execute the method for a hot water drinking device according to any one of the foregoing embodiments.

An embodiment of the present invention provides an instant hot water drinking device, including the device for the instant hot water drinking device according to any one of the foregoing embodiments.

An embodiment of the present invention provides a machine-readable storage medium, where instructions are stored on the machine-readable storage medium, and when executed by a processor, the instructions cause the processor to execute the instant heating method according to any one of the foregoing embodiments. method of drinking water equipment.

The present application also provides a computer program product, which, when executed on a data processing device, is adapted to execute a program initialized with the method for a hot water drinking device in the above-described embodiments.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

Memory may include non-persistent memory in computer readable media, random access memory (RAM) and/or non-volatile memory in the form of, for example, read only memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media includes both persistent and non-permanent, removable and non-removable media, and storage of information may be implemented by any method or technology. Information may be computer readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read only memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), Flash Memory or other memory technology, Compact Disc Read Only Memory (CD-ROM), Digital Versatile Disc (DVD) or other optical storage, Magnetic tape cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.

It should also be noted that the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device comprising a series of elements includes not only those elements, but also Other elements not expressly listed, or which are inherent to such a process, method, article of manufacture, or apparatus are also included. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article of manufacture or apparatus that includes the element.

The above are merely examples of the present application, and are not intended to limit the present application. Various modifications and variations of this application are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

A method for instant hot water drinking equipment, characterized in that the method comprises:

Obtain the temperature of the residual water remaining in the instant drinking water equipment and the temperature of the substandard water that the output temperature of the instant drinking water equipment does not reach the target water intake temperature during the temperature rise process;

According to the temperature of the residual water and the temperature of the substandard water, it is determined that the temperature of the first mixed water is lower than the target water intake temperature, wherein the first mixed water is a mixture of the residual water and the substandard water obtained water;

outputting compensation water for mixing with the first mixed water, wherein the temperature of the compensation water is higher than the target intake water temperature; and

The temperature of the outlet water of the instant water drinking equipment is controlled to control the outlet water temperature at the target water intake temperature.
The method according to claim 1, wherein, determining that the temperature of the first mixed water is lower than the target water intake temperature according to the temperature of the residual water and the temperature of the substandard water, comprising:

Obtain the amount of residual water and the amount of substandard water;

Obtain the temperature of the first mixed water according to the amount of the residual water, the amount of the substandard water, the temperature of the residual water and the temperature of the substandard water;

It is determined that the temperature of the first mixed water is lower than the target water intake temperature.
The method according to claim 2, wherein the amount of the substandard water comprises determining according to the following formula (1):

Wherein, V does not meet the standard is the volume of the water that does not meet the standard, t 0 is the time for the temperature to rise to the target water intake temperature,
is the pump speed of the water pump, u t is the real-time driving value of the water pump, u 1 and u 0 are the voltages corresponding to two discrete data points adjacent to the real-time driving value u t according to the flow curve query, v 1 and v 0 are respectively Flow values corresponding to u 1 and u 0 .
The method according to claim 2, wherein the first mixture is obtained according to the amount of the residual water, the amount of the substandard water, the temperature of the residual water and the temperature of the substandard water The temperature of the water, including determination according to the following formula (2):

Wherein, T mix1 is the temperature of the first mixed water, V is the volume of the residual water, V is not up to standard is the volume of the water that does not meet the standard, T is the temperature of the residual water, and T is not up to standard is The temperature of the substandard water.
The method of claim 2, wherein the outputting compensation water to be mixed with the first mixed water comprises:

Determine the amount of the compensation water according to the preset water intake amount, the amount of the residual water and the amount of the substandard water;

The determined amount of the make-up water is output to be mixed with the first mixed water.
The method according to claim 5, wherein the method further comprises:

The temperature of the compensation water is determined according to the amount of the residual water, the amount of the substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of the compensation water.
The method according to claim 6, characterized in that, according to the amount of the residual water, the amount of the substandard water, the temperature of the first mixed water, the target water intake temperature, the compensation water The amount of to determine the temperature of the compensation water, including determining according to the following formula (3):

Wherein, T com is the temperature of the compensation water, V is the volume of the residual water, V is the volume of the water that does not meet the standard, T tar is the target water intake temperature, and T mix1 is the first The temperature of the mixed water, V com is the volume of the compensation water.
A processor, wherein the processor is configured to perform the method for a hot water drinking device according to any one of claims 1 to 7.
A device for instant hot drinking water equipment, characterized in that it comprises:

Temperature sensor to detect the temperature of residual water and/or the temperature of substandard water;

heating equipment for heating incoming water; and

The processor, configured as:

Obtain the temperature of the residual water remaining in the instant drinking water equipment and the temperature of the substandard water that the output temperature of the instant drinking water equipment does not reach the target water intake temperature during the temperature rise process;

According to the temperature of the residual water and the temperature of the substandard water, it is determined that the temperature of the first mixed water is lower than the target water intake temperature, wherein the first mixed water is a mixture of the residual water and the substandard water obtained water;

outputting compensation water for mixing with the first mixed water, wherein the temperature of the compensation water is higher than the target intake water temperature; and

The temperature of the outlet water of the instant water drinking equipment is controlled to control the outlet water temperature at the target water intake temperature.
The apparatus of claim 9, wherein the processor is further configured to:

Obtain the amount of residual water and the amount of substandard water;

Obtain the temperature of the first mixed water according to the amount of the residual water, the amount of the substandard water, the temperature of the residual water and the temperature of the substandard water;

It is determined that the temperature of the first mixed water is lower than the target water intake temperature.
11. The apparatus of claim 10, wherein the processor is further configured to determine the amount of substandard water according to the following formula (1):

Wherein, V does not meet the standard is the volume of the water that does not meet the standard, t 0 is the time for the temperature to rise to the target water intake temperature,
is the pump speed of the water pump, u t is the real-time driving value of the water pump, u 1 and u 0 are the voltages corresponding to two discrete data points adjacent to the real-time driving value u t according to the flow curve query, v 1 and v 0 are respectively Flow values corresponding to u 1 and u 0 .
The apparatus of claim 10, wherein the processor is further configured to determine the temperature of the first mixed water according to the following formula (2):

Wherein, T mix1 is the temperature of the first mixed water, V is the volume of the residual water, V is not up to standard is the volume of the water that does not meet the standard, T is the temperature of the residual water, and T is not up to standard is The temperature of the substandard water.
The apparatus of claim 10, wherein the processor is further configured to:

Determine the amount of the compensation water according to the preset water intake amount, the amount of the residual water and the amount of the substandard water;

The determined amount of the make-up water is output to be mixed with the first mixed water.
The apparatus of claim 13, wherein the processor is further configured to:

The temperature of the compensation water is determined according to the amount of the residual water, the amount of the substandard water, the temperature of the first mixed water, the target water intake temperature, and the amount of the compensation water.
15. The apparatus of claim 14, wherein the processor is further configured to determine the temperature of the compensation water according to the following formula (3):

Wherein, T com is the temperature of the compensation water, V is the volume of the residual water, V is the volume of the water that does not meet the standard, T tar is the target water intake temperature, and T mix1 is the first The temperature of the mixed water, V com is the volume of the compensation water.
An instant hot water drinking equipment is characterized by comprising the device for instant hot drinking water equipment according to any one of claims 9 to 15.
A machine-readable storage medium storing instructions on the machine-readable storage medium, wherein the instructions, when executed by a processor, cause the processor to execute the method according to any one of claims 1 to 7. Method for hot water drinking equipment.