CN116221970A

CN116221970A - Instant heating device, water outlet temperature prediction method thereof, prediction device and water treatment equipment

Info

Publication number: CN116221970A
Application number: CN202310285600.6A
Authority: CN
Inventors: 张三杰
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2023-06-06
Also published as: CN114251832A; CN114251832B

Abstract

The invention provides an instant heating device, a water outlet temperature prediction method thereof, a prediction device and water treatment equipment. The water outlet temperature prediction method comprises the following steps: obtaining a predicted water outlet temperature at a first moment predicted at a first moment and taking the predicted water outlet temperature as a temperature prediction initial value; determining a prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment; determining a difference value between the second actual water outlet temperature and the first actual water outlet temperature at the first moment; taking the sum of the difference value and the second actual outlet water temperature as a preliminary temperature predicted value; and calculating the predicted water temperature at the second moment according to the predicted deviation coefficient and the preliminary temperature predicted value, and taking the predicted water temperature as a new temperature predicted initial value. By the water outlet temperature prediction method provided by the invention, a more accurate temperature prediction value can be calculated, the prediction value is close to a real water outlet temperature value, water outlet temperature control is performed by using the prediction value, the temperature control effect can be effectively improved, and various problems caused by delay are avoided.

Description

Instant heating device, water outlet temperature prediction method thereof, prediction device and water treatment equipment

The present application is a divisional application of chinese patent application with application date 2021, month 08, 24, application number "202110976371.3", and the name "instant heating device, water outlet temperature prediction method, prediction device, and water treatment apparatus".

Technical Field

The invention relates to the technical field of instant heating, in particular to an instant heating device, a water outlet temperature prediction method and a prediction device thereof, and water treatment equipment.

Background

The instant heating product has the advantage of heating with use. However, when the software needs to change the working voltage of the water pump to adjust the water outlet temperature, the actual water outlet temperature and the water outlet temperature detected by the software have certain errors caused by delay due to superposition of multiple factors such as response speed of the water pump, time required by water temperature change, response delay of a water outlet temperature sensor and the like, and the actual condition of the water outlet temperature is difficult to accurately control by a temperature control system, so that the situations of boiling and vaporization caused by larger overshoot, larger temperature fluctuation and even water temperature out of control are easy to occur.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art.

Therefore, the first aspect of the present invention provides a method for predicting the outlet water temperature of an instant heating device.

The second aspect of the invention provides a water outlet temperature prediction device of an instant heating device.

In a third aspect of the invention, an instant heating device is provided.

In a fourth aspect, the present invention provides a water treatment apparatus.

A fifth aspect of the present invention proposes a readable storage medium.

In view of this, according to a first aspect of the present invention, there is provided a method for predicting a water outlet temperature of an instant heating device, the instant heating device including a temperature detecting device for detecting a water outlet temperature of the instant heating device, the water outlet temperature predicting method including: obtaining a predicted water outlet temperature at a first moment predicted at a first moment and taking the predicted water outlet temperature as a temperature prediction initial value; determining a prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment; determining a difference value between the second actual water outlet temperature and the first actual water outlet temperature at the first moment; taking the sum of the difference value and the second actual outlet water temperature as a preliminary temperature predicted value; and calculating a predicted water temperature at a second moment according to the predicted deviation coefficient and the preliminary temperature predicted value, and taking the predicted water temperature as a new temperature predicted initial value, wherein the first moment is earlier than the second moment.

The outlet water temperature prediction method of the instant heating device is used for the instant heating device. The instant heating device comprises a temperature detection device, and the outlet water temperature of the instant heating device is detected by the temperature detection device. In the water outlet process, when the water outlet temperature needs to be regulated, the predicted water outlet temperature at the first moment predicted at the first moment, namely a temperature prediction initial value, is obtained by predicting the real water outlet temperature at the first moment. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. Therefore, the prediction deviation coefficient can be determined according to the temperature prediction initial value and the second actual outlet water temperature. The prediction deviation coefficient reflects whether the predicted initial value of the temperature predicted at the first moment is accurate.

Here, the current time is the second time, and the first time is earlier than the second time, and the time difference between the second time and the first time is N seconds.

And calculating the difference value between the second actual water outlet temperature and the first actual water outlet temperature to obtain a temperature change value of the water outlet temperature within N seconds. And obtaining a preliminary temperature predicted value by calculating the sum of the temperature variation value and the second actual outlet water temperature. According to the preliminary temperature predicted value and the predicted deviation coefficient, the more accurate predicted water temperature at the second moment, namely the new temperature predicted initial value, can be calculated. The new temperature prediction initial value is close to the real water outlet temperature value, and the water outlet temperature is controlled by using the temperature prediction initial value, so that the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

It should be noted that the new initial temperature prediction value is continuously recorded and continuously used for the next N seconds, which is an iterative process, so that the outlet water temperature can be predicted in real time. The prediction deviation coefficient is changed in real time and reflects whether the temperature prediction initial value before N seconds is accurate or not. The closer the prediction bias coefficient is to 1, the more accurate the prediction is explained.

By the water outlet temperature prediction method, a more accurate temperature prediction value can be calculated, the prediction value is close to a real water outlet temperature value, water outlet temperature control is carried out by using the prediction value, the temperature control effect can be effectively improved, and the problems of boiling vaporization and the like caused by larger overshoot and larger temperature fluctuation due to temperature errors caused by delay are avoided.

The method for predicting the water outlet temperature of the instant heating device can also have the following technical characteristics:

in the above technical solution, the step of determining the prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment specifically includes: and comparing the second actual outlet water temperature with the temperature prediction initial value, and determining a prediction deviation coefficient according to a comparison result.

In the technical scheme, the initial temperature prediction value is a temperature obtained by predicting the actual water outlet temperature at the first moment. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. The deviation degree between the second actual water outlet temperature and the temperature prediction initial value can be determined by comparing the second actual water outlet temperature and the temperature prediction initial value, so that the prediction deviation coefficient can be determined according to the comparison result. The prediction deviation coefficient reflects whether the temperature prediction initial value at the first moment is accurate, namely whether the temperature prediction initial value before N seconds is accurate. According to the technical scheme, the prediction deviation coefficient can be determined, whether the prediction before N seconds is accurate can be judged according to the prediction deviation coefficient, meanwhile, the prediction deviation coefficient changes in real time, and based on the prediction deviation coefficient and the preliminary temperature predicted value, a more accurate water outlet temperature predicted value can be calculated, and the predicted value is close to a real water outlet temperature value.

In any of the above technical solutions, the step of comparing the second actual outlet water temperature with the temperature prediction initial value, and determining a prediction deviation coefficient according to the comparison result specifically includes: and determining a prediction deviation coefficient according to the quotient of the second actual outlet water temperature and the temperature prediction initial value.

In the technical scheme, the prediction deviation coefficient can be determined according to the quotient of the second actual outlet water temperature and the temperature prediction initial value. Wherein, the closer the prediction deviation coefficient is to 1, the more accurate the prediction is explained.

Specifically, the quotient of the second actual outlet water temperature and the initial temperature prediction value can be directly used as the prediction deviation coefficient.

Further, a prediction deviation coefficient can be determined according to a direct difference value between the second actual outlet water temperature and the temperature prediction initial value.

In any of the above technical solutions, the step of calculating the predicted water temperature at the second moment according to the predicted deviation coefficient and the preliminary temperature predicted value specifically includes: and determining the predicted water temperature at the second moment according to the product of the predicted deviation coefficient and the preliminary temperature predicted value.

In the technical scheme, the predicted water temperature at the second moment, namely the water temperature value at the current moment, can be determined according to the product of the predicted deviation coefficient and the preliminary temperature predicted value.

Specifically, the product of the predicted deviation coefficient and the preliminary temperature predicted value can be directly used as the predicted water temperature at the second moment.

In any of the above technical solutions, the method further includes: and storing a second actual outlet water temperature.

In any of the above technical solutions, the method further includes: and storing the predicted water temperature at the second moment.

In the technical scheme, the second actual water outlet temperature, namely the water outlet temperature detected at the current moment, is continuously recorded and can be continuously used for the next N seconds so as to calculate the temperature change value in the next N seconds. The water temperature is predicted at the second moment, namely a new temperature prediction initial value, the new temperature prediction initial value is continuously recorded and continuously used for the next N seconds to calculate a new prediction deviation coefficient, and therefore the prediction deviation coefficient is continuously changed. The method is an iterative process, so that the outlet water temperature can be accurately predicted in real time.

In any one of the above technical solutions, the step of obtaining the predicted outlet water temperature at the first time predicted at the first time and serving as the temperature prediction initial value specifically includes: and responding to an adjusting instruction of the water outlet temperature of the instant heating device, acquiring the predicted water outlet temperature at the first moment predicted at the first moment and taking the predicted water outlet temperature as a temperature prediction initial value.

In the technical scheme, the water outlet temperature predicted at the first moment is obtained in response to the water outlet temperature adjusting instruction and is used as a temperature prediction initial value for predicting the water outlet temperature at the current moment, so that a new temperature prediction initial value is obtained. The temperature control system accurately controls the actual condition of the water outlet temperature, and utilizes the new temperature prediction initial value to control the water outlet temperature, so that the influence caused by feedback lag in the temperature control process can be eliminated, the occurrence of the conditions of larger overshoot of the water outlet temperature, and boiling gasification caused by larger temperature fluctuation and even out-of-control are avoided.

Specifically, the adjustment instruction may be a water demand instruction triggered by a user when the user uses the device, such as 40 ℃ warm water, 80 ℃ hot water, etc.

Specifically, the adjustment command may be a driving command given by the system in the product development process, wherein the driving command includes a driving value of the water pump or a driving value of the heating component.

Specifically, the adjustment instruction may also be an instruction generated by changing a driving value of the water pump or changing a driving value of the heating component in order to adjust the outlet water temperature by the temperature control system during the water outlet process, so that the outlet water temperature can meet the user requirement.

In any of the above embodiments, the heating device includes a water pump, and the adjustment instruction includes information that a driving value of the water pump changes from a first driving value to a second driving value.

In this technical solution, the heating device comprises a water pump, and the adjustment command comprises information that the driving value of the water pump changes from a first driving value to a second driving value. The water outlet temperature prediction system starts to predict the water outlet temperature in response to an adjustment instruction that the driving value of the water pump changes from a first driving value to a second driving value.

It should be noted here that the water pump is used to drive the liquid, such as water, that needs to be heated by the instant heating device, but is not limited thereto. The driving value of the water pump can be voltage or current.

In any of the above embodiments, before the step of responding to the adjustment command of the outlet water temperature of the instant heating device, the method further includes: acquiring the lag time of the temperature detection device; the interval duration of the first time and the second time is set according to the lag time.

In the technical scheme, as the temperature detection device has better process consistency, such as NTC (Negative Temperature Coefficient) temperature sensors, the temperature lag time among different NTC temperature sensors is basically consistent. Therefore, the accuracy of the water outlet temperature prediction can be improved by setting the interval duration of the first time and the second time, that is, the above-described N seconds, based on the delay time.

It should be noted that the lag time means that the current detected water outlet temperature value of the software is the actual water outlet temperature value before N seconds, or the current actual water outlet temperature value needs to be detected in the software after N seconds.

In particular, the lag time may be directly taken as the interval duration of the first time and the second time.

Specifically, the interval duration of the first time and the second time may be set according to the lag time, the response speed of the water pump, the time required for the water temperature change, and the like.

According to a second aspect of the present invention, there is provided an outlet water temperature prediction device of an instant heating device, the instant heating device including a temperature detection device for detecting an outlet water temperature of the instant heating device, the outlet water temperature prediction device including: the water outlet temperature prediction unit is used for predicting the water outlet temperature at the first moment and taking the water outlet temperature as a temperature prediction initial value; the first calculation unit is used for determining a prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment; the second calculation unit is used for determining a difference value between the second actual water outlet temperature and the first actual water outlet temperature at the first moment; taking the sum of the difference value and the second actual outlet water temperature as a preliminary temperature predicted value; and the third calculation unit is used for calculating the predicted water temperature at the second moment according to the predicted deviation coefficient and the preliminary temperature predicted value and taking the predicted water temperature as a new temperature predicted initial value, wherein the first moment is earlier than the second moment.

The outlet water temperature prediction device of the instant heating device is used for the instant heating device. The instant heating device comprises a temperature detection device, and the outlet water temperature of the instant heating device is detected by the temperature detection device. In the water outlet process, when the water outlet temperature needs to be regulated, the obtaining unit obtains the predicted water outlet temperature at the first moment predicted at the first moment, namely a temperature prediction initial value, wherein the temperature prediction initial value is the temperature obtained by predicting the real water outlet temperature at the first moment. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. Therefore, the first calculation unit can determine the prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature. The prediction deviation coefficient reflects whether the predicted initial value of the temperature predicted at the first moment is accurate.

And calculating the difference value between the second actual water outlet temperature and the first actual water outlet temperature through a second calculation unit to obtain a temperature change value of the water outlet temperature within N seconds before. And calculating the sum of the temperature change value and the second actual outlet water temperature through a second calculation unit to obtain a preliminary temperature predicted value. The third calculation unit can calculate a relatively accurate predicted water temperature at the second moment, namely a new temperature prediction initial value, according to the preliminary temperature prediction value and the prediction deviation coefficient. The new temperature prediction initial value is close to the real water outlet temperature value, and the water outlet temperature is controlled by using the temperature prediction initial value, so that the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

It should be noted that the new initial temperature prediction value is continuously recorded and continuously used for the next N seconds, which is an iterative process, so that the outlet water temperature can be predicted in real time. The prediction deviation coefficient is changed in real time and reflects whether the temperature prediction initial value before N seconds is accurate or not. The closer the prediction bias coefficient is to 1, the more accurate the prediction is explained. The water outlet temperature prediction device provided by the invention can calculate a more accurate temperature prediction value, the prediction value is close to a real water outlet temperature value, the water outlet temperature is controlled by using the prediction value, the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

In a third aspect of the present invention, an instant heating device is presented, comprising: the temperature detection device is used for detecting the water outlet temperature of the instant heating device; the outlet water temperature prediction device of the instant heating device in the technical scheme; the temperature detection device is connected with the outlet water temperature prediction device of the instant heating device.

The instant heating device provided by the invention comprises the water outlet temperature prediction device of the instant heating device. Therefore, all the beneficial effects of the outlet water temperature prediction device with the instant heating device are not discussed one by one.

In addition, the instant heating device also comprises a temperature detection device, and the temperature detection device can detect the outlet water temperature of the instant heating device. Specifically, the water outlet temperature can be detected once every preset time, and when the preset time is 0, the water outlet temperature is detected in real time.

In a fourth aspect of the present invention, there is provided a water treatment apparatus comprising: the instant heating device according to the technical scheme.

The water treatment equipment provided by the invention comprises the instant heating device according to the technical scheme. Therefore, the full benefits of the instant heating devices described above are not discussed in detail herein.

In the above technical solution, the water treatment apparatus includes: a water dispenser, a water heater and a water purifier.

In the technical scheme, the water treatment equipment provided by the invention comprises, but is not limited to, a water dispenser, a water heater and a water purifier. And are not listed here.

In a fifth aspect of the present invention, there is provided a readable storage medium having a program stored thereon, which when executed by a processor, implements the steps of the method for predicting a water outlet temperature of an instant heating apparatus according to any one of the above-mentioned aspects.

The readable storage medium according to the present invention can implement the steps of the method for predicting the outlet water temperature of the instant heating device according to any one of the above-described aspects when the stored program is executed. Therefore, all the advantages of the control method of the instant heating device are not discussed herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows one of the flow diagrams of a method for predicting the outlet water temperature of an instant heating device according to an embodiment of the present invention;

FIG. 2 is a second flow chart of a method for predicting a water outlet temperature of an instant heating device according to an embodiment of the invention;

FIG. 3 is a third flow chart illustrating a method for predicting a water outlet temperature of an instant heating device according to an embodiment of the invention;

FIG. 4 is a flow chart showing a method for predicting the outlet water temperature of an instant heating device according to an embodiment of the present invention;

FIG. 5 is a schematic flow chart of a method for predicting the outlet water temperature of an instant heating device according to an embodiment of the present invention;

FIG. 6 is a flow chart showing a method for predicting a water outlet temperature of an instant heating device according to an embodiment of the present invention;

FIG. 7 is a block diagram of a device for predicting the outlet water temperature of a thermal instant apparatus in accordance with one embodiment of the present invention;

FIG. 8 is one of the schematic structural views of the instant heating device of one embodiment of the present invention;

FIG. 9 is a second schematic diagram of the structure of an instant heating device according to an embodiment of the present invention;

FIG. 10 is a third schematic structural view of an instant heating device according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of a thermal device according to an embodiment of the present invention.

The correspondence between the reference numerals and the component names in fig. 8 to 11 is:

802 heating element, 804 temperature sensing device, 806 water pump.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, without conflict, the embodiments of the present invention and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and the scope of the invention is therefore not limited to the specific embodiments disclosed below.

The instant heating apparatus, the water outlet temperature prediction method thereof, the prediction apparatus thereof, and the water treatment apparatus according to some embodiments of the present invention will be described with reference to fig. 1 to 11.

In one embodiment of the present invention, a method for predicting a water outlet temperature of an instant heating device is provided, as shown in fig. 1, the water outlet temperature prediction method includes:

102, obtaining a predicted outlet water temperature at a first moment and taking the predicted outlet water temperature as a temperature prediction initial value;

104, acquiring a second actual water outlet temperature detected at a second moment, and determining a prediction deviation coefficient according to a temperature prediction initial value and the second actual water outlet temperature;

step 106, obtaining a first actual water outlet temperature at a first moment, and calculating a difference value between a second actual water outlet temperature and the first actual water outlet temperature;

step 108, calculating the sum of the difference value and the second actual outlet water temperature to be used as a preliminary temperature predicted value;

step 110, calculating the predicted water temperature at the second moment according to the predicted deviation coefficient and the preliminary temperature predicted value, and taking the predicted water temperature as a new temperature predicted initial value.

Wherein the first time is earlier than the second time.

The outlet water temperature prediction method of the instant heating device provided by the embodiment of the invention is used for the instant heating device. The instant heating device is provided with a temperature detection device by which the outlet water temperature of the instant heating device can be detected. In the water outlet process, when the water outlet temperature needs to be regulated, the predicted water outlet temperature at the first moment predicted at the first moment, namely a temperature prediction initial value, is obtained by predicting the real water outlet temperature at the first moment. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. Therefore, the prediction deviation coefficient can be determined according to the temperature prediction initial value and the second actual outlet water temperature. The prediction deviation coefficient reflects whether the predicted initial value of the temperature predicted at the first moment is accurate.

By the water outlet temperature prediction method provided by the embodiment of the invention, a more accurate temperature prediction value can be calculated, the prediction value is close to a real water outlet temperature value, water outlet temperature control is performed by using the prediction value, the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

In one embodiment of the present invention, as shown in fig. 2, the effluent temperature prediction method includes:

step 202, obtaining a predicted outlet water temperature at a first moment to obtain a temperature predicted initial value;

step 204, obtaining a second actual water outlet temperature detected at a second moment, comparing the second actual water outlet temperature with a temperature prediction initial value, and determining a prediction deviation coefficient according to a comparison result;

step 206, obtaining a first actual water outlet temperature at a first moment, and calculating a difference value between a second actual water outlet temperature and the first actual water outlet temperature;

step 208, calculating the sum of the difference value and the second actual outlet water temperature to obtain a preliminary temperature predicted value;

step 210, calculating the predicted water temperature at the second moment according to the predicted deviation coefficient and the preliminary temperature predicted value, and taking the predicted water temperature as a new temperature predicted initial value.

In this embodiment, the temperature prediction initial value is a temperature at which the actual outlet water temperature thereof is predicted at the first time. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. The deviation degree between the second actual water outlet temperature and the temperature prediction initial value can be determined by comparing the second actual water outlet temperature and the temperature prediction initial value, so that the prediction deviation coefficient can be determined according to the comparison result. The prediction deviation coefficient reflects whether the temperature prediction initial value at the first moment is accurate, namely whether the temperature prediction initial value before N seconds is accurate. According to the embodiment of the invention, the prediction deviation coefficient can be determined, whether the previous N seconds of prediction is accurate can be judged according to the prediction deviation coefficient, meanwhile, the prediction deviation coefficient is continuously changed, and based on the prediction deviation coefficient and the preliminary temperature predicted value, a more accurate temperature predicted value can be calculated, and the predicted value is close to a real water outlet temperature value.

In the above embodiment, step 204 compares the second actual outlet water temperature detected at the second moment with the initial temperature prediction value, and determines the prediction deviation coefficient according to the comparison result, which specifically includes: and determining a prediction deviation coefficient according to the quotient of the second actual outlet water temperature and the temperature prediction initial value.

In this embodiment, by calculating the ratio of the second actual outlet water temperature to the temperature prediction initial value, the degree of deviation between the second actual outlet water temperature and the temperature prediction initial value can be determined, and the prediction deviation coefficient can be determined according to the degree of deviation. The prediction deviation coefficient reflects whether the temperature prediction initial value predicted at the first moment is accurate, i.e. whether the temperature prediction initial value predicted at the first N seconds of the current moment is accurate. The method for calculating the prediction deviation coefficient is simple and effective, so that the current outlet water temperature can be rapidly and accurately predicted, the prediction accuracy and the prediction speed of the outlet water temperature are improved, the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

Wherein, the closer the prediction deviation coefficient is to 1, the more accurate the prediction is explained.

In a specific embodiment of the present invention, the quotient of the second actual outlet water temperature and the initial temperature prediction value is directly used as the prediction deviation coefficient.

In some embodiments of the present invention, the prediction deviation coefficient may be further determined according to a difference between the second actual outlet water temperature and the temperature prediction initial value. Wherein, the closer the prediction deviation coefficient is to 1, the more accurate the prediction is explained.

In one embodiment of the present invention, as shown in fig. 3, the outlet water temperature prediction method includes:

step 302, obtaining a predicted outlet water temperature at a first moment to obtain a temperature predicted initial value;

step 304, obtaining a second actual water outlet temperature detected at a second moment, comparing the second actual water outlet temperature with a temperature prediction initial value, and determining a prediction deviation coefficient according to a comparison result;

step 306, calculating a difference between the second actual water outlet temperature and the first actual water outlet temperature at the first moment;

step 308, calculating the sum of the difference value and the second actual outlet water temperature to obtain a preliminary temperature predicted value;

step 310, determining the predicted water temperature at the second moment according to the product of the predicted deviation coefficient and the preliminary temperature predicted value, and taking the predicted water temperature as a new temperature predicted initial value.

In this embodiment, in the water outlet process, when the water outlet temperature needs to be adjusted, a predicted water outlet temperature at a first time predicted at a first time, that is, a temperature predicted initial value, which is a temperature obtained by predicting the actual water outlet temperature at the first time, is obtained. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. Therefore, the prediction deviation coefficient can be determined according to the temperature prediction initial value and the second actual outlet water temperature. The prediction bias coefficient reflects whether the temperature prediction initial value at the first moment is accurate.

And calculating the difference value between the second actual water outlet temperature and the first actual water outlet temperature to obtain a temperature change value of the water outlet temperature within N seconds. And obtaining a preliminary temperature predicted value by calculating the sum of the temperature variation value and the second actual outlet water temperature. And according to the product of the predicted deviation coefficient and the preliminary temperature predicted value, the predicted water outlet temperature at the second moment, namely the predicted water outlet temperature value at the current moment, can be determined. The predicted value of the water outlet temperature is close to the real water outlet temperature value, and the water outlet temperature is controlled by using the predicted value of the water outlet temperature, so that the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

In a specific embodiment of the present invention, in step 310, the product of the predicted deviation coefficient and the preliminary temperature predicted value is directly used as the predicted water temperature at the second moment.

In the above embodiment, step 304 compares the second actual outlet water temperature detected at the second moment with the initial temperature prediction value, and determines the prediction deviation coefficient according to the comparison result, which specifically includes: and determining a prediction deviation coefficient according to the quotient of the second actual outlet water temperature and the temperature prediction initial value.

In this embodiment, by calculating the ratio of the second actual outlet water temperature to the temperature prediction initial value, the degree of deviation between the second actual outlet water temperature and the temperature prediction initial value can be determined, and the prediction deviation coefficient can be determined according to the degree of deviation. The prediction deviation coefficient reflects whether the temperature prediction initial value predicted at the first moment is accurate, i.e. whether the temperature prediction initial value predicted at the first N seconds of the current moment is accurate. The method for calculating the prediction deviation coefficient is simple and effective, so that the current outlet water temperature can be rapidly and accurately predicted, the prediction accuracy and the prediction speed of the outlet water temperature are improved, the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided. Wherein, the closer the prediction deviation coefficient is to 1, the more accurate the prediction is explained.

In one embodiment of the present invention, further comprising: storing a second actual outlet water temperature; and storing the predicted water temperature at the second moment.

In this embodiment, the temperature variation value of the water outlet temperature within N seconds before is obtained by calculating the difference between the second actual water outlet temperature and the first actual water outlet temperature. And obtaining a preliminary temperature predicted value by calculating the sum of the temperature variation value and the second actual outlet water temperature. According to the preliminary temperature predicted value and the predicted deviation coefficient, the more accurate predicted water temperature at the second moment, namely the new temperature predicted initial value, can be calculated.

The second actual water outlet temperature, namely the actual water outlet temperature detected at the current moment, is continuously recorded and can be continuously used for the next N seconds to calculate the temperature change value in the next N seconds. The water temperature is predicted at the second moment, namely a new temperature prediction initial value, the new temperature prediction initial value is continuously recorded and continuously used for the next N seconds to calculate a new prediction deviation coefficient, and therefore the prediction deviation coefficient is continuously changed. The method is an iterative process, so that the outlet water temperature can be accurately predicted in real time.

In one embodiment of the present invention, as shown in fig. 4, the effluent temperature prediction method includes:

step 402, receiving an adjustment instruction of the water outlet temperature, and obtaining a predicted water outlet temperature at a first moment to obtain a temperature predicted initial value;

Step 404, obtaining a second actual outlet water temperature detected at a second moment, calculating a ratio of the second actual outlet water temperature to a temperature prediction initial value, and determining a prediction deviation coefficient according to the ratio;

step 406, obtaining a first actual water outlet temperature at a first moment, and calculating a difference value between a second actual water outlet temperature and the first actual water outlet temperature;

step 408, calculating the sum of the difference and the second actual outlet water temperature to obtain a preliminary temperature predicted value;

step 410, determining the predicted water temperature at the second moment according to the product of the predicted deviation coefficient and the preliminary temperature predicted value, and taking the predicted water temperature as a new temperature predicted initial value.

In this embodiment, when an adjustment instruction of the water outlet temperature is received, the water outlet temperature predicted at the first time is obtained and used as a temperature prediction initial value for predicting the water outlet temperature at the current time, so as to obtain a new temperature prediction initial value. The temperature control system accurately controls the actual condition of the water outlet temperature, and utilizes the new temperature prediction initial value to control the water outlet temperature, so that the influence caused by feedback lag in the temperature control process can be eliminated, the occurrence of the conditions of larger overshoot of the water outlet temperature, and boiling gasification caused by larger temperature fluctuation and even out-of-control are avoided.

Further, the instant heating device comprises a water pump, and the adjustment instruction comprises information that the driving value of the water pump is changed from a first driving value to a second driving value.

In this embodiment, when the driving value of the water pump is changed from the first driving value to the second driving value, prediction of the water outlet temperature is started.

In one embodiment of the present invention, before the step of responding to the adjustment command of the outlet water temperature of the instant heating device, the method further comprises: acquiring the lag time of the temperature detection device; the interval duration of the first time and the second time is set according to the lag time.

In this embodiment, the temperature lag time between different NTC temperature sensors is substantially uniform due to the better process uniformity of the temperature detection device, such as NTC temperature sensors. Therefore, the accuracy of the water outlet temperature prediction can be improved by setting the interval duration of the first time and the second time, that is, the above-described N seconds, based on the delay time.

Specifically, the lag time is directly taken as the interval duration of the first time and the second time.

Specifically, the interval duration of the first time and the second time is set according to the lag time, the response speed of the water pump, the time required for the water temperature change, and the like.

In one embodiment of the present invention, as shown in fig. 5, the effluent temperature prediction method includes:

step 502, obtaining a driving value of a water pump;

step 504, judging whether the driving value of the water pump changes; if yes, go to step 506; if not, returning to step 502;

step 506, obtaining a predicted outlet water temperature at a first time predicted at a first time and taking the predicted outlet water temperature as a temperature predicted initial value;

Step 508, obtaining a second actual outlet water temperature detected at a second moment, comparing the second actual outlet water temperature with a temperature prediction initial value, and determining a prediction deviation coefficient according to a comparison result;

step 510, obtaining a first actual water outlet temperature at a first moment, and calculating a difference value between a second actual water outlet temperature and the first actual water outlet temperature;

step 512, calculating the sum of the difference and the second actual outlet water temperature to obtain a preliminary temperature predicted value;

and step 514, calculating the product of the predicted deviation coefficient and the preliminary temperature predicted value to obtain the predicted water temperature at the second moment and taking the predicted water temperature as a new temperature predicted initial value.

In this embodiment, the instant heating device comprises a temperature detection means by which the outlet water temperature of the instant heating device is detected. In this embodiment, the temperature detecting device detects the water temperature in real time.

In the water outlet process, whether the driving value of the water pump changes or not is judged by acquiring the driving value of the water pump so as to judge whether the water outlet temperature needs to be adjusted or not. When the driving value of the water pump changes, for example, the first driving value changes to the second driving value, the water outlet temperature needs to be adjusted. When the water outlet temperature needs to be regulated, the predicted water outlet temperature at the first moment predicted at the first moment, namely a temperature prediction initial value, is obtained by predicting the real water outlet temperature at the first moment. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. Therefore, the prediction deviation coefficient can be determined according to the temperature prediction initial value and the second actual outlet water temperature. The prediction deviation coefficient reflects whether the predicted initial value of the temperature predicted at the first moment is accurate.

It should be noted that the new temperature prediction initial value is recorded continuously, and is continuously used for the next N seconds, which is an iterative process, so that the outlet water temperature can be predicted in real time. The prediction deviation coefficient is changed in real time and reflects whether the temperature prediction initial value before N seconds is accurate or not. The closer the prediction bias coefficient is to 1, the more accurate the prediction is explained.

By the water outlet temperature prediction method, a more accurate temperature prediction value can be calculated, the prediction value is close to a real water outlet temperature value, water outlet temperature control is performed by using the prediction value, the temperature control effect can be effectively improved, and the problems of boiling vaporization and the like caused by larger overshoot, larger temperature fluctuation and even water temperature out-of-control due to temperature errors caused by delay are avoided.

In addition, the instant heating device further comprises a heating component for heating the liquid pumped by the water pump. And the driving value of the heating component is acquired to judge whether the driving value of the heating component is changed, when the driving value of the heating component is changed, the water outlet temperature needs to be adjusted, and the water outlet temperature of the instant heating device is predicted again.

The driving value of the heating component can be a voltage or a current.

When software needs to change the working voltage of the water pump to adjust the water outlet temperature, the actual water outlet temperature and the water outlet temperature detected by the software have certain errors caused by delay due to superposition of multiple factors such as response speed of the water pump, time required for water temperature change, response delay of a water outlet temperature sensor and the like, and the actual condition of the water outlet temperature is difficult to accurately control by a temperature control system, so that the situations of boiling and vaporization caused by larger overshoot, larger temperature fluctuation and even water temperature out of control are easy to occur.

In one embodiment of the present invention, a method for predicting a water outlet temperature of an instant heating device is provided, wherein the instant heating device includes a temperature detecting device for detecting a water outlet temperature of the instant heating device. In this embodiment, the temperature detection device is an NTC temperature sensor.

Because the outlet water temperature NTC process of the instant heating device has better consistency, the temperature lag time between different samples is basically consistent, based on the fact that the lag time of the NTC obtained through experiments is N (unit seconds), the lag time means that the current detected outlet water temperature value of the software is a real outlet water temperature value before N seconds, or the current real outlet water temperature value can be detected in the software only after N seconds.

The following algorithm design is performed by utilizing the N value obtained by the experiment:

(1) According to the current detected water outlet temperature T in real time ₁ With the outlet water temperature T detected before N seconds ₀ Comparing to obtain a change value delta T of the water outlet temperature in the previous N seconds:

ΔT＝T ₁ -T ₀ ；

(2) Superimposed on T by DeltaT in (1) ₁ Obtaining the current preliminary temperature predicted value Y _{Initially, the method comprises} ；

Y _{Initially, the method comprises} ＝ΔT+T ₁ ；①

(3) Real-time processing of the current detected water outlet temperature T ₁ Initial value Y of temperature prediction obtained before N seconds _{First 0} Comparing to obtain a predicted deviation coefficient K, which changes in real time and reflects a predicted initial value Y of the temperature before N seconds _{First 0} Whether accurate, the closer to 1 the more accurate;

(4) The current prediction deviation coefficient K and the current preliminary temperature predicted value Y _{Initially, the method comprises} Multiplying to obtain a real-time temperature prediction formula:

wherein Y is the current temperature predicted value, T ₁ T is the outlet water temperature detected by the current temperature detection device ₀ The water outlet temperature detected by the temperature detection device before N seconds is Y _{First 0} Is the temperature predicted initial value calculated before N seconds, Y _{First 0} Is calculated from the first 2N seconds of value.

It is noted that T ₁ Namely a second actual outlet water temperature detected at a second moment; t (T) ₀ I.e. the first actual outlet water temperature at the first moment; y is Y _{First 0} The water outlet temperature is predicted at the first moment; and predicting the water temperature at the second moment. The interval duration between the first time and the second time is N seconds.

The method for predicting the outlet water temperature of the instant heating apparatus according to the present embodiment will be further described with reference to fig. 6. As shown in fig. 6, the outlet water temperature prediction method includes:

step 602, according to the current detected water outlet temperature and the water outlet temperature detected before N seconds, obtaining a variation value delta T of the water outlet temperature within the previous N seconds;

step 604, obtaining a preliminary temperature predicted value by substituting deltat into formula (1);

Step 606, the software compares the current detected water outlet temperature with the temperature prediction initial value obtained before N seconds in real time to obtain a prediction deviation coefficient K;

step 608, substituting the total formula (2) to obtain the current temperature predicted value.

According to the water outlet temperature prediction method of the instant heating device, when the system needs to change the driving voltage of the water pump, the water outlet temperature value is collected in real time, and after a series of special treatments, a relatively accurate temperature prediction value is obtained, the prediction value is close to a real water outlet temperature value, and software uses the prediction value to control the water outlet temperature, so that the problems of boiling vaporization and the like caused by relatively large overshoot and relatively large temperature fluctuation even out of control of water temperature due to feedback lag are avoided.

Here, the driving voltage of the water pump is changed by adjusting the driving value of the water pump, wherein the driving value may be a voltage or a current.

The water outlet temperature prediction method of the instant heating device is quite simple, and can effectively improve the accuracy of the prediction result, thereby effectively improving the temperature control effect.

In one embodiment of the present invention, as shown in fig. 7, the outlet water temperature prediction device 700 of the instant heating device includes:

An obtaining unit 702, configured to obtain a predicted water outlet temperature at a first time predicted at a first time, so as to obtain a temperature predicted initial value;

a first calculating unit 704, configured to calculate a prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment;

a second calculating unit 706, configured to calculate a difference between the second actual outlet water temperature and the first actual outlet water temperature at the first moment; calculating the sum of the difference value and the second actual outlet water temperature to obtain a preliminary temperature predicted value;

the third calculating unit 708 is configured to calculate, based on the prediction deviation coefficient and the preliminary temperature predicted value, a predicted water temperature at the second time, and to use the predicted water temperature as a new temperature predicted initial value.

Wherein the first time is earlier than the second time.

The outlet water temperature prediction device 700 of the instant heating device provided by the embodiment of the invention is used for the instant heating device. The instant heating device is provided with a temperature detection device which can detect the outlet water temperature of the instant heating device. In the water outlet process, when the water outlet temperature needs to be adjusted, the obtaining unit 702 obtains a predicted water outlet temperature at a first time predicted at a first time, that is, a temperature prediction initial value, which is a temperature obtained by predicting the actual water outlet temperature at the first time. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. Therefore, the first calculating unit 704 can determine the prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature. The prediction deviation coefficient reflects whether the predicted initial value of the temperature predicted at the first moment is accurate.

The difference between the second actual water outlet temperature and the first actual water outlet temperature is calculated by the second calculating unit 706, so as to obtain a temperature variation value of the water outlet temperature within N seconds. The sum of the temperature variation value and the second actual outlet water temperature is calculated by the second calculating unit 706, so as to obtain a preliminary temperature predicted value. The third calculation unit 708 calculates a more accurate predicted water temperature at the second moment, i.e. a new initial temperature prediction value, according to the preliminary temperature prediction value and the prediction deviation coefficient. The new temperature prediction initial value is close to the real water outlet temperature value, and the water outlet temperature is controlled by using the temperature prediction initial value, so that the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

By the outlet water temperature prediction device 700 of the instant heating device, a more accurate temperature prediction value can be calculated, the prediction value is close to a real outlet water temperature value, the outlet water temperature is controlled by using the prediction value, the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

Further, the obtaining unit 702 obtains the predicted water outlet temperature at the first time predicted at the first time, that is, the temperature predicted initial value, in response to the adjustment instruction of the water outlet temperature.

Further, the first calculating unit 704 determines a prediction deviation coefficient according to a quotient of the second actual outlet water temperature and the temperature prediction initial value.

Further, the third calculation unit 708 determines the predicted water temperature at the second time based on the product of the predicted deviation coefficient and the preliminary temperature predicted value.

Further, the outlet water temperature prediction device 700 of the instant heating device further includes a storage unit, and the storage unit stores the second actual outlet water temperature and the predicted outlet water temperature at the second moment.

In this embodiment, the second actual water outlet temperature, i.e. the water outlet temperature detected at the current moment, is continuously recorded, and can be continuously used for the next N seconds to calculate the temperature change value in the next N seconds. The water temperature is predicted at the second moment, namely a new temperature prediction initial value, the new temperature prediction initial value is continuously recorded and continuously used for the next N seconds to calculate a new prediction deviation coefficient, and therefore the prediction deviation coefficient is continuously changed. The method is an iterative process, so that the outlet water temperature can be accurately predicted in real time.

Further, an acquisition unit 702 that acquires a lag time of the temperature detection device; and setting a time difference between the first time and the second time according to the lag time.

Specifically, the interval duration of the first time and the second time may also be set according to the lag time, the response speed of the water pump, the time required for the water temperature change, and the like.

In a third aspect of the present invention, there is provided an instant heating apparatus, as shown in fig. 8, 9, 10 and 11, comprising: the outlet water temperature prediction device 700 of the instant heating device according to the above embodiment.

Therefore, the instant heating device provided in this embodiment has all the advantages of the outlet water temperature prediction device 700 of the instant heating device, which will not be discussed here.

In addition, the instant heating device further comprises a temperature detecting device 804, a heating part 802 and a water outlet pipeline. Wherein the heating element 802 is operable to heat the liquid and the temperature sensing device 804 is operable to sense the outlet water temperature of the instant heating device. The water outlet end of the heating part 802 is connected to a water outlet pipeline, and the temperature detecting device 804 is arranged on the water outlet pipeline to detect the water outlet temperature of the instant heating device.

That is, the outlet water temperature prediction device 700 of the heating device is electrically connected with the temperature detection device 804, and the outlet water temperature detected by the temperature detection device 804 in real time can be collected to more accurately predict the outlet water temperature at the current moment, the predicted value is close to the real outlet water temperature value, and the outlet water temperature is controlled by using the predicted value, so that the temperature control effect can be effectively improved, various problems caused by temperature errors caused by delay are avoided, and the outlet water temperature meets the outlet water requirement of a user.

In addition, the instant heating device further includes a water pump 806, the water pump 806 may be used to drive the liquid, and the heating component 802 may be used to heat the liquid driven by the water pump 806. Specifically, the heating member 802 is a heating pipe, and the temperature detecting device 804 is a temperature sensor. In addition, the temperature detecting device 804 can be further disposed at the water inlet of the heating pipe, so that the temperature detecting device 804 can detect the water inlet temperature and the water outlet temperature of the instant heating device.

In this embodiment, further, the temperature detecting device 804 is specifically an NTC temperature sensor, and because the NTC temperature sensor has better process consistency, the temperature lag time between different NTC temperature sensors is substantially consistent. The lag time means that the current detected water outlet temperature value of the software is the real water outlet temperature value before T seconds, or the current real water outlet temperature value can be detected in the software only after N seconds. Therefore, the accuracy of the water outlet temperature prediction can be improved by setting the interval duration of the first time and the second time, that is, the above-described N seconds, based on the delay time.

In addition, the instant heating device provided by the embodiment of the invention has the following advantages: energy is saved; the heating device is heated at any time, namely, the hot water storage work such as heating and heat preservation is not needed in the heating device for a long time, and the energy loss is reduced. The volume of the product is reduced, and the space adaptability is high. Namely, the interior of the heating device does not need hot water storage, so that the structural design can reduce the volume of the product. The cost is low. Because the water storage hot-filling and related heating detection elements are not needed in the heating device, the product cost can be reduced. The user can set up water outlet temperature and water yield as required, and the mode of heating and adjusting water flow speed is passed through by the temperature control unit and the volume calculation unit in the heat facility promptly, reaches target temperature fast and accurately, satisfies user's play water demand.

In a fourth aspect of the present invention, there is provided a water treatment apparatus (not shown in the drawings) comprising: the instant heating device of the above embodiment.

The water treatment equipment provided by the embodiment of the invention comprises the instant heating device. Therefore, when the system needs to adjust the water outlet temperature, the water treatment equipment of the embodiment can obtain a more accurate temperature predicted value by collecting the water outlet temperature value in real time and performing a series of special treatments, the predicted value is close to the real water outlet temperature value, and software uses the predicted value to control the water outlet temperature, so that the problems of boiling vaporization and the like caused by larger overshoot and larger temperature fluctuation and even water temperature out of control due to feedback lag are avoided. Specifically:

the water treatment equipment can detect the outlet water temperature of the instant heating device through the temperature detection device. Whether the driving value of the water pump changes can be detected to judge whether the system needs to adjust the water outlet temperature. In the water outlet process, when the water outlet temperature needs to be regulated, the predicted water outlet temperature at the first moment predicted at the first moment, namely a temperature prediction initial value, is obtained by predicting the real water outlet temperature at the first moment. And because of the delay, the second actual water outlet temperature detected by the system at the second moment is the actual water outlet temperature at the first moment. Therefore, the prediction deviation coefficient can be determined according to the temperature prediction initial value and the second actual outlet water temperature. The prediction deviation coefficient reflects whether the predicted initial value of the temperature predicted at the first moment is accurate.

Therefore, the water treatment equipment provided by the embodiment of the invention can calculate a relatively accurate temperature predicted value, the predicted value is close to a real water outlet temperature value, the water outlet temperature is controlled by using the predicted value, the temperature control effect can be effectively improved, and various problems caused by temperature errors caused by delay are avoided.

In addition, the water treatment equipment provided by the embodiment of the invention has the following advantages: energy is saved; the water treatment equipment is heated along with the use, so that the hot water storage work such as heating and heat preservation is not needed in the water treatment equipment for a long time, and the energy loss is reduced. The volume of the product is reduced, and the space adaptability is high. The inside of the water treatment equipment does not need hot water reserve, so the structural design can reduce the volume of the product. The cost is low. Because the water treatment equipment does not need a water storage hot pot and related heating detection elements, the product cost can be reduced. The user can set up water outlet temperature and water yield as required, and the mode of heating and adjusting the water flow speed is passed through by the temperature control unit and the volume calculation unit inside the water treatment facilities, reaches target temperature fast and accurately, satisfies user's play water demand.

In the above embodiment, further, the water treatment apparatus includes: a water dispenser, a water heater and a water purifier.

In this embodiment, the water treatment device provided by the invention comprises, but is not limited to, a water dispenser, a water heater and a water purifier. And are not listed here.

In a fifth aspect of the present invention, a readable storage medium (not shown) is provided, on which a program is stored, which when executed by a processor, implements the steps of the method for predicting a water outlet temperature of an instant heating device according to any of the above embodiments.

The readable storage medium according to the embodiment of the present invention can implement the steps of the method for predicting the outlet water temperature of the instant heating device according to any one of the embodiments described above when the stored program is executed. Therefore, all the advantages of the control method of the instant heating device are not discussed herein.

In the description of the present specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance unless explicitly specified and limited otherwise; the terms "coupled," "mounted," "secured," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for predicting a water outlet temperature of an instant heating device, wherein the instant heating device comprises a temperature detection device, the temperature detection device is used for detecting the water outlet temperature of the instant heating device, and the water outlet temperature prediction method comprises the following steps:

step 102, obtaining a predicted water outlet temperature at a first moment predicted at a first moment and taking the predicted water outlet temperature as a temperature predicted initial value;

104, determining a prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment;

step 106, determining a difference value between the second actual water outlet temperature and the first actual water outlet temperature at the first moment;

step 108, taking the sum of the difference value and the second actual outlet water temperature as a preliminary temperature predicted value;

step 110, calculating the predicted water temperature at the second moment according to the predicted deviation coefficient and the preliminary temperature predicted value, and taking the predicted water temperature as the new temperature predicted initial value,

wherein the first time is N seconds earlier than the second time, the method further comprising:

and repeating the steps 102-110 by taking the second actual outlet water temperature as the initial temperature prediction value, taking the second moment as the first moment and taking the next N seconds as the second moment.

2. The method for predicting the outlet water temperature of an instant heating apparatus according to claim 1, wherein the step of determining the prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment specifically comprises:

and comparing the second actual water outlet temperature with the temperature prediction initial value, and determining the prediction deviation coefficient according to a comparison result.

3. The method for predicting the outlet water temperature of a heating apparatus according to claim 2, wherein the step of comparing the second actual outlet water temperature with the initial temperature prediction value and determining the prediction deviation coefficient according to the comparison result specifically comprises:

and determining the prediction deviation coefficient according to the quotient of the second actual outlet water temperature and the temperature prediction initial value.

4. A method according to any one of claims 1 to 3, wherein the step of calculating the predicted water temperature at the second time based on the predicted deviation coefficient and the preliminary temperature predicted value specifically comprises:

and determining the predicted water temperature at the second moment according to the product of the predicted deviation coefficient and the preliminary temperature predicted value.

5. The method for predicting the outlet water temperature of a thermal instant apparatus of claim 4, further comprising:

and storing the second actual water outlet temperature.

6. The method for predicting the outlet water temperature of an instant heating apparatus according to claim 5, wherein,

and storing the predicted water temperature at the second moment.

7. The method for predicting the outlet water temperature of a thermal device according to claim 4, wherein the step of obtaining the predicted outlet water temperature at the first time predicted at the first time as the initial value of the temperature prediction specifically comprises:

and responding to an adjustment instruction of the water outlet temperature of the instant heating device, acquiring the predicted water outlet temperature at the first moment predicted at the first moment and taking the predicted water outlet temperature as the temperature prediction initial value.

8. The method according to claim 7, wherein the instant heating device includes a water pump, and the adjustment command includes information that a driving value of the water pump is changed from a first driving value to a second driving value.

9. The method of predicting the outlet water temperature of a thermal instant apparatus according to claim 7 or 8, further comprising, prior to the step of responding to the adjustment command of the outlet water temperature of the thermal instant apparatus:

Acquiring the lag time of the temperature detection device;

and setting the interval duration of the first time and the second time according to the lag time.

10. The utility model provides a play water temperature prediction device of instant heating device which characterized in that, instant heating device includes temperature detection device, temperature detection device is used for detecting the play water temperature of instant heating device, play water temperature prediction device includes:

the water outlet temperature prediction unit is used for predicting the water outlet temperature at the first moment and taking the water outlet temperature as a temperature prediction initial value;

the first calculation unit is used for determining a prediction deviation coefficient according to the temperature prediction initial value and the second actual outlet water temperature detected at the second moment;

the second calculation unit is used for determining a difference value between the second actual water outlet temperature and the first actual water outlet temperature at the first moment; taking the sum of the difference value and the second actual outlet water temperature as a preliminary temperature predicted value;

a third calculation unit for calculating the predicted water temperature at the second moment according to the predicted deviation coefficient and the preliminary temperature predicted value and taking the predicted water temperature as a new temperature predicted initial value,

the first time is N seconds earlier than the second time, the second actual outlet water temperature is taken as the temperature prediction initial value, the second time is taken as the first time, and the next N seconds is taken as the second time.

11. An instant heating device, comprising:

the temperature detection device is used for detecting the water outlet temperature of the instant heating device;

a water outlet temperature prediction device for an instant heating device according to claim 10;

the temperature detection device is connected with the water outlet temperature prediction device of the instant heating device.

12. The instant heating apparatus of claim 11, further comprising:

a heating member;

the water outlet pipeline is connected with the water outlet end of the heating component;

the temperature detection device is arranged on the water outlet pipeline.

13. A water treatment apparatus, comprising:

a thermal instant device according to claim 11 or 12.

14. A water treatment apparatus according to claim 13, wherein,

the water treatment apparatus includes: a water dispenser, a water heater and a water purifier.

15. A storage medium having a program stored thereon, wherein the program, when executed by a processor, implements the outlet water temperature prediction method of an instant heating device according to any one of claims 1 to 9.