CN113108474A

CN113108474A - Water heater control method and device, water heater and storage medium

Info

Publication number: CN113108474A
Application number: CN202110325548.3A
Authority: CN
Inventors: 白智锐; 盛保敬; 李雪; 李迅; 陈小雷; 林凯
Original assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2021-07-13

Abstract

The application belongs to the technical field of household appliances, and particularly relates to a water heater control method and device, a water heater and a storage medium. A first temperature sensor is arranged at a water outlet of the water heater, a second temperature sensor is arranged in a water tank of the water heater, and a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor are obtained; determining that the hot water outlet flow of the water heater is not zero according to the plurality of outlet water temperature values and the plurality of water tank temperature values; and controlling the water heater to heat according to the current water outlet temperature value. Because the volume of the temperature sensor is small, the water outlet condition of the water heater is judged through the temperature sensor, and the appearance of the water heater can be improved. In addition, a more accurate judgment result can be obtained through comprehensive judgment of the temperature sensor at the water outlet and the temperature sensor in the water tank.

Description

Water heater control method and device, water heater and storage medium

Technical Field

The application belongs to the technical field of household appliances, and particularly relates to a water heater control method and device, a water heater and a storage medium.

Background

The water heater is a device capable of changing cold water into hot water within a certain time, and is one of household appliances essential in daily life. In practical application, in order to ensure that a user has enough hot water for use, the heating power of the water heater can be controlled by monitoring the water outlet condition of the water heater.

Generally, in order to monitor the water outlet condition of a water heater, a flow sensor is arranged at a water inlet of a water tank of the water heater, the water inlet flow is monitored through the flow sensor, and the water outlet condition of the water heater is obtained according to the water inlet flow.

However, the current general flow sensor is generally a physical impeller type device driven by water flow, and the physical impeller type device has the problem of large volume and seriously influences the appearance of the water heater.

Disclosure of Invention

In order to solve the problems in the prior art, namely accurately monitoring the water outlet condition of the water heater without influencing the appearance of the water heater, the application provides a water heater control method and device, the water heater and a storage medium.

In a first aspect, the application provides a water heater control method, which is applied to a water heater, wherein a first temperature sensor is arranged at a water outlet of the water heater, a second temperature sensor is arranged in a water tank of the water heater, and the water heater control method comprises the following steps:

acquiring a plurality of outlet water temperature values recently monitored by a first temperature sensor and a plurality of water tank temperature values recently monitored by a second temperature sensor;

determining that the hot water outlet flow of the water heater is not zero according to the plurality of outlet water temperature values and the plurality of water tank temperature values;

and controlling the water heater to heat according to the current water outlet temperature value.

In one possible embodiment, determining that the hot water outlet flow of the water heater is not zero according to the plurality of outlet temperature values and the plurality of tank temperature values includes:

determining that a continuous rising value of the water temperature in a first preset time period is greater than or equal to a first threshold value according to a plurality of water outlet temperature values;

determining that the water outlet temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and a second threshold value within a second preset time period according to the plurality of water outlet temperature values and the plurality of water tank temperature values; and determining that the hot water outlet flow of the water heater is not zero.

determining that the rising value of the water temperature in a third preset time period is greater than or equal to a third threshold value according to the plurality of water outlet temperature values;

determining that the duration of the rising value greater than or equal to the third threshold is greater than a fourth preset duration;

determining that the effluent temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and the second threshold value according to the plurality of effluent temperature values and the plurality of water tank temperature values within a fifth preset time length;

and determining that the hot water outlet flow of the water heater is not zero.

In one possible embodiment, the water heater control method further includes:

determining that the hot water outlet flow of the water heater is zero;

and executing the step of obtaining a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor.

In one possible embodiment, determining that the hot water outflow of the water heater is zero comprises:

determining that the current water outlet temperature value is smaller than the difference between the current water tank temperature value and a second threshold value;

and determining that the hot water outlet flow of the water heater is zero.

if the continuous drop value of the outlet water temperature value within the third preset time is determined to be greater than or equal to the fourth threshold value according to the plurality of outlet water temperature values, determining that the hot water outlet flow of the water heater is zero;

or if the drop value of the outlet water temperature value in the fifth preset time period is determined to be greater than or equal to the fifth threshold value according to the plurality of outlet water temperature values, determining that the hot water outlet flow of the water heater is zero.

In one possible embodiment, the controlling the water heater to heat according to the current outlet water temperature value comprises the following steps:

determining target heating power of the water heater according to the current water outlet temperature value;

and controlling the water heater to heat based on the target heating power.

In a possible embodiment, the current time is a heating starting time of the water heater, and the determining of the target heating power of the water heater according to the current outlet water temperature value includes:

if the current outlet water temperature value is smaller than a sixth threshold value, determining that the target heating power of the water heater is the first heating power; alternatively, the first and second electrodes may be,

if the current effluent temperature value is determined to be greater than or equal to the sixth threshold value, determining the target heating power of the water heater to be the second heating power;

wherein the second heating power is less than the first heating power.

In one possible embodiment, determining the target heating power of the water heater according to the current outlet water temperature value comprises:

determining that the temperature of the water is continuously increased according to a plurality of water outlet temperature values;

and if the current effluent temperature value is determined to be greater than or equal to the sixth threshold, determining that the target heating power of the water heater is the second heating power.

In a possible embodiment, after determining the target heating power of the water heater as the second heating power, the method further includes:

and if the current effluent temperature value is larger than the seventh threshold value, determining that the target heating power of the water heater is a third heating power, wherein the third heating power is smaller than the second heating power.

In a possible embodiment, after determining the target heating power of the water heater as the third heating power, the method further includes:

determining that the temperature of the water is continuously reduced according to a plurality of outlet water temperature values;

and if the current effluent temperature value is smaller than or equal to the eighth threshold value, determining that the target heating power of the water heater is the second heating power.

and if the current effluent temperature value is smaller than or equal to the ninth threshold value, determining that the target heating power of the water heater is the first heating power.

In a second aspect, the present application provides a water heater control device, is applied to the water heater, and the delivery port of water heater is equipped with first temperature sensor, is equipped with second temperature sensor in the water tank of water heater, and water heater control device includes:

the acquisition module is used for acquiring a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor;

the determining module is used for determining that the hot water outlet flow of the water heater is not zero according to the plurality of outlet water temperature values and the plurality of water tank temperature values;

and the processing module is used for controlling the water heater to heat according to the current water outlet temperature value.

The third aspect, this application provides a water heater controlling means is applied to the water heater, and the delivery port of water heater is equipped with first temperature sensor, is equipped with second temperature sensor in the water tank of water heater, and water heater controlling means includes:

a processor, a memory;

the memory stores a computer program;

the processor, when executing the computer program stored in the memory, implements the water heater control method as described in the first aspect.

In a fourth aspect, the present application provides a water heater, wherein a first temperature sensor is arranged at a water outlet of the water heater, a second temperature sensor is arranged in a water tank of the water heater, and the water heater further comprises a water heater control device as described in the second aspect or the third aspect.

In a fifth aspect, the present application provides a computer-readable storage medium having stored thereon computer-executable instructions for implementing the water heater control method according to the first aspect when the computer-executable instructions are executed by a processor.

In a sixth aspect, the present application provides a program product comprising a computer program which, when executed by a processor, implements the water heater control method as described in the first aspect.

The technical personnel in the field can understand that, in the application, a first temperature sensor is arranged at a water outlet of the water heater, a second temperature sensor is arranged in a water tank of the water heater, and a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor are obtained; determining that the hot water outlet flow of the water heater is not zero according to the plurality of outlet water temperature values and the plurality of water tank temperature values; and controlling the water heater to heat according to the current water outlet temperature value. Because the volume of the temperature sensor is small, the water outlet condition of the water heater is judged through the temperature sensor, and the appearance of the water heater can be improved. In addition, a more accurate judgment result can be obtained through comprehensive judgment of the temperature sensor at the water outlet and the temperature sensor in the water tank.

Drawings

Preferred embodiments of the present application are described below with reference to the accompanying drawings. The attached drawings are as follows:

FIG. 1 is a diagram illustrating an example of a water heater control method according to an embodiment of the present disclosure;

FIG. 2 is a schematic flow chart illustrating a method for controlling a water heater according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a water heater provided by an embodiment of the present application;

fig. 4 is a schematic diagram of a hot water outlet flow rate determination method according to an embodiment of the present application;

fig. 5 is a schematic view illustrating a method for determining a hot water outlet flow rate according to another embodiment of the present application;

FIG. 6 is a schematic flow chart diagram illustrating a method for controlling a water heater according to another embodiment of the present application;

FIG. 7 is a schematic structural diagram of a control device of a water heater according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a water heater control device according to another embodiment of the present application

Fig. 9 is a schematic structural diagram of a water heater provided in another embodiment of the present application.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present application, and are not intended to limit the scope of the present application. And can be adjusted as needed by those skilled in the art to suit particular applications.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the embodiments of the present application, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may be expressed as: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or system in which the element is included.

The water heater is a device capable of increasing the temperature of cold water into hot water within a certain time, and is a common household appliance. Wherein, to water storage formula water heater, can be when sensing user's water quick start heating to water in the water tank is heated continuously at play water in-process. Therefore, in order to meet the needs of users, some water heaters need to accurately monitor the water outlet condition of the water heater, so as to control the heating power of the water heater.

In practical application, cold water can be input into the water tank of the water heater through the water inlet when the water is discharged from the water heater, so that sufficient water quantity can be ensured in the water tank. Therefore, in order to monitor the water outlet condition of the water heater, a flow sensor is usually arranged at the water inlet of the water tank of the water heater, the flow of cold water entering the water tank is monitored through the flow sensor, and the water outlet condition of the water heater is obtained according to the water flow.

However, the current general flow sensor is generally a physical impeller type device driven by water flow, and the physical impeller type device has the problem of large volume and seriously influences the appearance of the water heater. In addition, the cost of the physical impeller type device is also relatively high, which also results in increased cost of the water heater.

In view of the above, the present application provides a water heater control method, apparatus, water heater and storage medium. The water heater is characterized in that temperature sensors are respectively arranged in a water outlet and a water tank of the water heater, the current hot water outlet condition of the water heater is comprehensively determined according to the temperature change conditions in the water outlet and the water tank, and then the water heater is controlled to heat according to the temperature change condition of the water outlet. Because the volume of the temperature sensor is small, the water outlet condition of the water heater is judged through the temperature sensor, and the appearance of the water heater can be improved. In addition, a more accurate judgment result can be obtained through comprehensive judgment of the temperature sensor at the water outlet and the temperature sensor in the water tank.

The water heater control method provided by the application can be suitable for a water heater with a water tank, namely a water storage type water heater. The embodiment of the present application is not particularly limited to the type of the storage water heater, for example: gas water heaters, electric water heaters, solar water heaters, air energy water heaters, and the like.

Fig. 1 is a diagram illustrating a scenario of a hot water amount determination method according to an embodiment of the present application. The scene comprises the following steps: a water heater control device 100, a water heater 110, a first temperature sensor 111, and a second temperature sensor 112.

The water heater control device 100 is applied to the water heater 110, and the first temperature sensor 111 is installed at the water outlet of the water heater 110 and used for measuring the temperature of the water outlet of the water heater 110; a second temperature sensor 112 is mounted within the tank of the water heater 110 for measuring the temperature of the water in the tank of the water heater 110.

In practical applications, the embodiment of the present application is not limited to the type of the water heater control device 100. In one aspect, the water heater control device 100 may be a control module embedded in or external to the water heater 110, such as a Central Processing Unit (CPU), a Micro Controller Unit (MCU), a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), and the like, in one or more combinations.

On the other hand, the water heater control device 100 may be a remote control device, for example, a control device in a mobile phone, a computer, a tablet, and the like.

In this scheme, the first temperature sensor 111 and the second temperature sensor 112 respectively send a plurality of recently monitored temperature values to the water heater control device 100, and the water heater control device 100 determines whether the water heater 110 is currently outputting water according to a plurality of water output temperature values and a plurality of water tank temperature values.

If the water heater 110 is discharging water at this time, the water heater 110 needs to be controlled to heat. In this scheme, water heater controlling means 100 can control water heater 110 according to a plurality of play water temperature values and heat, because the water of user direct contact is the water that the delivery port flows, controls the water heater heating through the temperature of delivery port, the user demand that satisfies that can be better prevents that the play water temperature is overheated and scald the user.

The following describes in detail the technical solutions of the embodiments of the present application and how to solve the above technical problems with specific embodiments. The following specific embodiments may be combined with each other, and some of the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 2 is a schematic flow chart of a water heater control method according to an embodiment of the present application. It should be understood that the execution subject of the embodiment of the present application is the above-mentioned water heater control device, and the water heater control method is applied to the water heater, and the present solution is described below with reference to the schematic structural diagram of the water heater shown in fig. 3.

Fig. 3 is a schematic structural diagram of a water heater according to an embodiment of the present application. As shown in fig. 3, the water heater 200 includes a water tank 201, an inner water outlet 202, an inner water inlet 203, an outer water outlet 204, and an outer water inlet 205, wherein a first temperature sensor 206 is disposed at the outer water outlet 204, and a second temperature sensor 207 is disposed in the water tank 201.

It should be noted that, for a specific position of the second temperature sensor 207 in the water tank 201, the embodiment of the present application is not particularly limited, and for example, the second temperature sensor may be installed at the top, the middle, or the bottom of the water tank 201. For convenience of understanding, fig. 3 provided in the embodiment of the present application illustrates that the second temperature sensor 207 is installed on the right wall of the middle portion of the water tank 201, but the present application is not limited thereto.

As shown in fig. 2, the water heater control method includes the following steps:

s201, obtaining a plurality of outlet water temperature values recently monitored by a first temperature sensor and a plurality of water tank temperature values recently monitored by a second temperature sensor.

After the water heater is powered on, the first temperature sensor 206 and the second temperature sensor 207 start to measure the temperature, and report a plurality of measured temperature values to the water heater control device in real time. Accordingly, the water heater control device obtains a plurality of outlet water temperature values recently monitored by the first temperature sensor 206 and a plurality of tank temperature values recently monitored by the second temperature sensor 207. The embodiment of the present application is not particularly limited to the method for monitoring the temperature value by the first temperature sensor and the second temperature sensor.

On one hand, the temperature value corresponding to each time point can be detected according to the preset time interval, and then the temperature value corresponding to each time point is reported to the water heater control device. Illustratively, taking the preset time interval as 2 seconds as an example, the temperature sensor detects the temperature once every 2 seconds, and reports each time and the corresponding temperature value to the water heater control device.

On the other hand, the temperature sensor can also be used for detecting the temperature change condition in the water tank or at the outlet in real time to detect the temperature value. Specifically, when the preset temperature value changes (rises or falls) every time the temperature value changes, the time and the temperature value corresponding to the current temperature measurement are reported. For example, taking the preset temperature value as 2 ℃, after the water heater is powered on, if the temperature continuously decreases or increases, the time and the temperature value corresponding to the temperature measurement are reported every time the temperature decreases or increases by 2 ℃.

It should be noted that, the first temperature sensor and the second temperature sensor may both adopt any one of the two detection methods, and in the same water heater, the temperature detection methods of the first temperature sensor and the second temperature sensor may be the same or different, and the embodiments of the present application are not particularly limited.

S202, determining that the hot water outlet flow of the water heater is not zero according to the plurality of outlet water temperature values and the plurality of water tank temperature values.

In practical applications, when a user uses hot water, the hot water flows out from the inner water outlet 202 and flows out of the water tank 201 through the outer water outlet 204, and the temperature of the outer water outlet 204 increases accordingly. In addition, in order to ensure that sufficient hot water is in the water tank 201, cold water is input from the outer water inlet 205 and then input into the water tank 201 through the inner water inlet 203 while hot water is output, and at this time, the temperature of the water in the water tank 201 also changes according to the use condition of a user. Based on this, it can be comprehensively judged whether the water heater 200 is currently discharging water according to the temperature change condition at the water outlet 204 and the temperature change condition in the water tank 201.

It should be noted that, according to the multiple outlet water temperature values and the multiple tank temperature values, a scheme that the hot water outlet flow of the water heater is not zero is determined, which is specifically described in the following embodiments.

And S203, controlling the water heater to heat according to the current water outlet temperature value.

In practical application, when the water heater outputs hot water, cold water is synchronously input into the water tank, so that in order to ensure that the hot water is continuously output, heating is started after the water heater is judged to be currently outputting water, so that the temperature of the output water is kept relatively constant. However, when the water consumption of the user is large or the cold water intake is large, the water temperature may be too low, and when the water consumption of the user is small or the cold water intake is small, the water temperature may be too high, thereby scalding the user. In this scheme, can control the water heater according to current temperature of leaving water and heat to prevent that the temperature of water is overheated or too cold. For example, the water heater may be controlled to stop heating or start heating according to the current outlet water temperature, or adjust the heating power according to the outlet water temperature. The specific scheme for controlling the water heater to heat according to the current outlet water temperature value is shown in the following embodiments.

In the embodiment of the application, a first temperature sensor is arranged at a water outlet of a water heater, a second temperature sensor is arranged in a water tank of the water heater, and a plurality of water outlet temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor are obtained; determining that the hot water outlet flow of the water heater is not zero according to the plurality of outlet water temperature values and the plurality of water tank temperature values; and controlling the water heater to heat according to the current water outlet temperature value. Because the volume of the temperature sensor is small, the water outlet condition of the water heater is judged through the temperature sensor, and the appearance of the water heater can be improved. In addition, a more accurate judgment result can be obtained through comprehensive judgment of the temperature sensor at the water outlet and the temperature sensor in the water tank.

In practical applications, there are various ways to determine that the hot water outlet flow of the water heater is not zero according to the multiple outlet temperature values and the multiple tank temperature values, and the following describes in detail the scheme of determining that the hot water outlet flow of the water heater is not zero according to the multiple outlet temperature values and the multiple tank temperature values in step S202 with the embodiments shown in fig. 4 and 5.

Fig. 4 is a schematic diagram of a method for determining a hot water outlet flow rate according to an embodiment of the present application. As shown in fig. 4, the method for determining the flow rate of the hot water outlet provided by this embodiment includes the following steps:

s301, according to the plurality of water outlet temperature values, determining that the continuous rising value of the water temperature in a first preset time period is larger than or equal to a first threshold value.

S302, according to the plurality of effluent temperature values and the plurality of water tank temperature values, determining that the effluent temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and a second threshold value within a second preset time period.

And S303, determining that the hot water outlet flow of the water heater is not zero.

After the water heater is powered on, the continuous rising value of the water temperature in a first preset time period is determined to be larger than or equal to a first threshold value, and in a second preset time period, the water outlet temperature value is larger than or equal to the difference between the water tank temperature value at the corresponding moment and a second threshold value, so that the hot water outlet flow of the water heater is determined to be not zero.

It should be noted that, the first preset time period, the first threshold, the second preset time period, and the second threshold are not specifically limited in the embodiments of the present application. Illustratively, taking the first preset time period as 20 seconds, the first threshold as 2 ℃, the first preset time period as 1 minute, and the second threshold as 2 ℃ as an example, the scheme is as follows: and determining that the outlet water temperature value continuously rises by 2 ℃ within 20 seconds, and the outlet water temperature is greater than or equal to the difference between the current water tank temperature value and 2 ℃ within 1 minute, and determining that the hot water outlet flow of the water heater is not zero.

According to the scheme, a continuous rising value of the water temperature in a first preset time is determined to be larger than or equal to a first threshold value according to a plurality of water outlet temperature values; determining that the water outlet temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and a second threshold value within a second preset time period according to the plurality of water outlet temperature values and the plurality of water tank temperature values; and determining that the hot water outlet flow of the water heater is not zero. Because the water outlet flow of the water heater is comprehensively judged to be not zero by synthesizing the water outlet temperature value and the water tank temperature value, an accurate judgment result can be obtained, so that the heating of the water heater is accurately controlled, and the user experience is improved.

Fig. 5 is a schematic diagram of a method for determining a hot water outlet flow rate according to another embodiment of the present application. As shown in fig. 5, the method for determining the flow rate of the hot water outlet provided by this embodiment includes the following steps:

s311, determining that the rising value of the water temperature in a third preset time period is larger than or equal to a third threshold value according to the plurality of water outlet temperature values.

And S312, determining that the duration of the ascending value greater than or equal to the third threshold is greater than a fourth preset duration.

S313, in a fifth preset time period, according to the plurality of effluent temperature values and the plurality of water tank temperature values, determining that the effluent temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and the second threshold value.

And S314, determining that the hot water outlet flow of the water heater is not zero.

Specifically, the method comprises the steps of determining that the rising value of the water temperature in a third preset time period is greater than or equal to a third threshold value, and determining that the duration of the rising value greater than or equal to the third threshold value is greater than a fourth preset time period; further, on the basis of meeting the above steps, determining that the outlet water temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and the second threshold value within a fifth preset time period, and determining that the hot water outlet flow of the water heater is not zero.

It should be noted that, in the embodiment of the present application, the third preset time period, the third threshold, the fourth preset time period, and the fifth preset time period are not specifically limited. For example, taking the third preset time period as 2 seconds, the third threshold as 2 ℃, the fourth preset time period as 20 seconds, and the fifth preset time period as 1 minute as an example, the scheme is as follows: and determining that the outlet water temperature value continuously rises by 2 ℃ within 2 seconds, starting timing from the moment, and after continuously timing for 20 seconds, determining that the outlet water temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and the second threshold value within 1 minute, so that the hot water outlet flow of the water heater is not zero.

According to the scheme, the rising value of the water temperature in a third preset time period is determined to be larger than or equal to a third threshold value according to a plurality of water outlet temperature values and a plurality of water outlet temperature values; determining that the duration of the rising value greater than or equal to the third threshold is greater than a fourth preset duration; determining that the effluent temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and the second threshold value according to the plurality of effluent temperature values and the plurality of water tank temperature values within a fifth preset time length; and determining that the hot water outlet flow of the water heater is not zero. Because the water outlet flow of the water heater is comprehensively judged to be not zero by synthesizing the water outlet temperature value and the water tank temperature value, an accurate judgment result can be obtained, so that the heating of the water heater is accurately controlled, and the user experience is improved.

Fig. 6 is a schematic flow chart of a water heater control method according to another embodiment of the present application. As shown in fig. 6, the water heater control method provided in the embodiment of the present application includes the following steps:

s401, obtaining a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor.

Step S401 is similar to step S201 in the embodiment shown in fig. 2, and reference may be made to the embodiment shown in fig. 2 for details, which are not described herein again.

S402, determining whether the hot water outlet flow of the water heater is zero or not.

In practical applications, the embodiment of the present application is not particularly limited to a specific manner for determining that the flow rate of the hot water outlet is zero. On one hand, the flow of hot water outlet of the water heater can be comprehensively determined to be zero by combining the current outlet water temperature value and the water tank temperature value; on the other hand, the hot water outlet flow of the water heater can be determined to be zero according to the change of the outlet water temperature value. The following two ways are explained with reference to specific embodiments:

(1) and comprehensively determining that the hot water outlet flow of the water heater is zero according to the current outlet water temperature value and the water tank temperature value.

Specifically, if the current outlet water temperature value is smaller than the difference between the current water tank temperature value and the second threshold value, the hot water outlet flow of the water heater is determined to be zero.

(2) And determining that the hot water outlet flow of the water heater is zero according to the change condition of the outlet water temperature value.

In some embodiments, if it is determined that the continuous drop value of the outlet water temperature value within the third preset time period is greater than or equal to the fourth threshold value according to the plurality of outlet water temperature values, it is determined that the hot water outlet flow rate of the water heater is zero.

For example, taking the third preset time period as 2 seconds and the fourth threshold as 2 ℃, if the continuous drop value of the outlet water temperature within 2 seconds is greater than or equal to 2 ℃, it is determined that the outlet water flow of the hot water of the water heater is zero.

In other embodiments, if it is determined that the drop value of the outlet water temperature value within the fifth preset time period is greater than or equal to the fifth threshold value according to the plurality of outlet water temperature values, it is determined that the hot water outlet flow rate of the water heater is zero.

For example, if the fifth preset time period is 1 minute and the fifth threshold is 2 ℃, and the continuous drop value of the outlet water temperature within 1 minute is greater than or equal to 2 ℃, it is determined that the outlet water flow of the hot water of the water heater is zero.

And S403, if the hot water outlet flow of the water heater is determined to be zero, executing the step S401.

It should be noted that, if it is determined that the hot water outlet flow of the water heater is zero, the step S401 is continuously executed to obtain a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of tank temperature values recently monitored by the second temperature sensor until it is determined that the hot water outlet flow of the water heater is not zero.

It should be understood that, for the way of determining that the hot water outlet flow of the water heater is not zero, please refer to the embodiments shown in fig. 4 and 5, which will not be described herein again.

S404, determining that the hot water outlet flow of the water heater is not zero, and controlling the water heater to heat according to the current outlet temperature value.

Under the general condition, the heating power of water heater is fixed size, and when the user water consumption is great or cold water inflow was great, probably caused the condition that the temperature was too low, when the user water consumption is less or cold water inflow is less, probably caused the too high condition of temperature to scald the user, consequently, in this scheme, can come the target heating power who confirms needs according to the temperature value of going out water, thereby control the water heater and heat according to target heating power. The following specifically describes the scheme of controlling the water heater to heat according to the current outlet water temperature value by combining steps S4041 to S4042:

s4041, determining the target heating power of the water heater according to the current water outlet temperature value.

S4042, controlling the water heater to heat based on the target heating power.

In some embodiments, if the current effluent temperature value is less than the sixth threshold, determining that the target heating power of the water heater is the first heating power; or if the current effluent temperature value is determined to be greater than or equal to the sixth threshold, determining that the target heating power of the water heater is the second heating power. And the current moment is the starting heating moment of the water heater, and the second heating power is smaller than the first heating power.

In practical application, when the hot water outlet flow of the water heater is determined to be not zero, a heating program is started immediately, if the current outlet water temperature value is smaller than a sixth threshold value, the current temperature value is lower, and heating is carried out with higher power; correspondingly, if the current outlet water temperature value is greater than or equal to the sixth threshold value, it indicates that the current temperature value has reached a higher value, and heating needs to be performed with a smaller power.

Illustratively, taking the sixth threshold as 92 ℃, the first heating power is 3KW, and the second heating power is 2KW, if the current effluent temperature value is less than 92 ℃, the water heater is controlled to heat with the power of 3KW, and if the current effluent temperature value is greater than or equal to 92 ℃, the water heater is controlled to heat with the power of 2 KW.

It should be noted that, if the water temperature value is continuously increased when the first heating power is used for heating, until the water temperature value is greater than or equal to the sixth threshold, the heating power needs to be decreased.

Specifically, if the water temperature is determined to be continuously increased according to the plurality of water outlet temperature values, and the current water outlet temperature value is determined to be greater than or equal to the sixth threshold, the target heating power of the water heater is determined to be the second heating power. Namely, after the water heater is controlled to heat with 3KW of heating power, if the temperature of the outlet water rises to 92 ℃, the heating power is reduced to 2KW for heating.

Further, when heating is performed according to the second heating power, the outlet water temperature continuously rises to the seventh threshold, and the heating power of the water heater needs to be continuously reduced.

Specifically, according to a plurality of effluent temperature values, the water temperature is determined to be continuously increased, and when the current effluent temperature value is determined to be greater than a seventh threshold value, the target heating power of the water heater is determined to be a third heating power, wherein the third heating power is less than the second heating power.

Illustratively, taking the seventh threshold as 94 ℃ and the third heating power as 0KW for example, if the outlet water temperature continues to rise until the outlet water temperature value is greater than or equal to 94 ℃, the heating power of the water heater is controlled to be 0KW, that is, the heating is stopped.

Furthermore, when the water heater is heated with a smaller power, the water temperature may be too low, and therefore, when the outlet water temperature value is continuously decreased to the eighth threshold value, the water heater needs to be heated with a larger heating power.

Specifically, if the water temperature is determined to be continuously reduced according to the plurality of water outlet temperature values, and the target heating power of the water heater is determined to be the second heating power until the current water outlet temperature value is smaller than or equal to the eighth threshold value.

Illustratively, taking the eighth threshold as 91 ℃ as an example, after the water heater stops heating, if the temperature continues to decrease until the outlet water temperature is less than or equal to 91 ℃, the water heater is controlled to heat with 2KW of power.

In practical application, if the water consumption of the current user is large or the water inflow of cold water is large, the situation that the water temperature continues to be reduced can also occur when the water is heated by 2KW power, and at the moment, the water heater needs to be controlled to heat by larger heating power.

Specifically, if the water temperature is determined to be continuously reduced according to the plurality of water outlet temperature values, and the target heating power of the water heater is determined to be the first heating power until the current water outlet temperature value is smaller than or equal to the ninth threshold value.

Illustratively, taking the ninth threshold as 89 ℃ as an example, if the value of the outlet water temperature continuously decreases until the current outlet water temperature is less than or equal to 89 ℃, the water heater is controlled to heat with 3 KW.

In the embodiment, a plurality of outlet water temperature values recently monitored by a first temperature sensor and a plurality of water tank temperature values recently monitored by a second temperature sensor are obtained; determining whether the hot water outlet flow of the water heater is zero or not; and if the hot water outlet flow of the water heater is determined not to be zero, controlling the water heater to heat according to the current water outlet temperature value. Because can control the water heater according to the play water temperature value and heat, can avoid a play water temperature too high or low excessively to promote user experience.

Fig. 7 is a schematic structural diagram of a water heater control device according to an embodiment of the present application. This water heater controlling means 500 is applied to the water heater, and the delivery port of water heater is equipped with first temperature sensor, is equipped with second temperature sensor in the water tank of water heater, and water heater controlling means 500 includes:

the acquiring module 501 acquires a plurality of outlet water temperature values recently monitored by a first temperature sensor and a plurality of water tank temperature values recently monitored by a second temperature sensor;

a determining module 502, configured to determine that a hot water outlet flow of the water heater is not zero according to the multiple outlet water temperature values and the multiple water tank temperature values;

and the processing module 503 is configured to control the water heater to heat according to the current outlet water temperature value.

It can be understood that the water heater control device provided in this embodiment may be used to implement the technical solution of any one of the above method embodiments, and the implementation principle and the technical effect are similar.

In one possible implementation, the determining module 502 may be specifically configured to: determining that a continuous rising value of the water temperature in a first preset time period is greater than or equal to a first threshold value according to a plurality of water outlet temperature values;

determining that the water outlet temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and a second threshold value within a second preset time period according to the plurality of water outlet temperature values and the plurality of water tank temperature values;

and determining that the hot water outlet flow of the water heater is not zero.

In one possible implementation, the determining module 502 may be specifically configured to: determining that the rising value of the water temperature in a third preset time period is greater than or equal to a third threshold value according to the plurality of water outlet temperature values;

and determining that the hot water outlet flow of the water heater is not zero.

In one possible implementation, the determining module 502 is further configured to: determining that the hot water outlet flow of the water heater is zero;

the obtaining module 501 is further configured to: and executing the step of obtaining a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor.

In one possible implementation, the determining module 502 may be specifically configured to: determining that the current water outlet temperature value is smaller than the difference between the current water tank temperature value and a second threshold value;

and determining that the hot water outlet flow of the water heater is zero.

In one possible implementation, the determining module 502 may be specifically configured to: if the continuous drop value of the outlet water temperature value within the third preset time is determined to be greater than or equal to the fourth threshold value according to the plurality of outlet water temperature values, determining that the hot water outlet flow of the water heater is zero;

In a possible implementation, the processing module 503 may be specifically configured to: determining target heating power of the water heater according to the current water outlet temperature value;

and controlling the water heater to heat based on the target heating power.

In one possible implementation, the determining module 502 may be specifically configured to: if the current outlet water temperature value is smaller than a sixth threshold value, determining that the target heating power of the water heater is the first heating power; alternatively, the first and second electrodes may be,

wherein the second heating power is less than the first heating power.

In a possible implementation, the processing module 503 may be specifically configured to: determining that the temperature of the water is continuously increased according to a plurality of water outlet temperature values;

In a possible implementation, the processing module 503 may be specifically configured to: determining that the temperature of the water is continuously reduced according to a plurality of outlet water temperature values;

It can be understood that the water heater control device provided in this embodiment may be used to execute the water heater control method in the foregoing method embodiments, and the implementation principle and the technical effect are similar.

Fig. 8 is a schematic structural diagram of a water heater control device according to another embodiment of the present application. The water heater control device is applied to a water heater. The delivery port of water heater is equipped with first temperature sensor, is equipped with second temperature sensor in the water tank of water heater, as shown in fig. 8, above-mentioned water heater controlling means 600 includes: a processor 601 and a memory 602.

The memory 602 stores a computer program;

the processor 601, when executing the computer program stored in the memory, implements the water heater control method as in the above-described method embodiments.

In the above water heater, the memory 602 and the processor 601 are electrically connected directly or indirectly to realize data transmission or interaction. For example, these elements may be electrically connected to each other via one or more communication buses or signal lines, such as bus 603. The memory 602 stores computer-executable instructions for implementing the data access control method, including at least one software functional module that can be stored in the memory 602 in the form of software or firmware, and the processor 601 executes various functional applications and data processing by running software programs and modules stored in the memory 602.

The Memory 602 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 602 is used for storing programs, and the processor 601 executes the programs after receiving the execution instructions. Further, the software programs and modules within the memory 602 may also include an operating system, which may include various software components and/or drivers for managing system tasks (e.g., memory management, storage device control, power management, etc.), and may communicate with various hardware or software components to provide an operating environment for other software components.

The processor 601 may be an integrated circuit chip having signal processing capabilities. The Processor 601 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Fig. 9 is a schematic structural diagram of a water heater provided in another embodiment of the present application. As shown in fig. 9, a first temperature sensor 701 is provided at the water outlet of the water heater, a second temperature sensor 702 is provided in the water tank of the water heater, and a water heater control device 703.

It can be understood that the water heater control device 703 provided in this embodiment may be used to implement the technical solution of any one of the above method embodiments, and the implementation principle and the technical effect thereof are similar.

An embodiment of the present application further provides a computer-readable storage medium, in which computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the computer-executable instructions are used to implement the water heater control method in the above method embodiment.

Embodiments of the present application further provide a computer program product, which includes a computer program, and when the computer program is executed by a processor, the method for controlling a water heater in the above method embodiments is implemented.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, the computer program can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims

1. A control method of a water heater is characterized by being applied to the water heater, a first temperature sensor is arranged at a water outlet of the water heater, a second temperature sensor is arranged in a water tank of the water heater, and the control method of the water heater comprises the following steps:

acquiring a plurality of outlet water temperature values recently monitored by the first temperature sensor and a plurality of water tank temperature values recently monitored by the second temperature sensor;

determining that the hot water outlet flow of the water heater is not zero according to the outlet water temperature values and the water tank temperature values;

and controlling the water heater to heat according to the current effluent temperature value.

2. The method for controlling a water heater according to claim 1, wherein the determining that the hot water outlet flow of the water heater is not zero according to the outlet water temperature values and the tank temperature values comprises:

determining that a continuous rising value of the water temperature in a first preset time period is greater than or equal to a first threshold value according to the plurality of water outlet temperature values;

determining that the water outlet temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and a second threshold value within a second preset time period according to the water outlet temperature values and the water tank temperature values;

and determining that the hot water outlet flow of the water heater is not zero.

3. The method for controlling a water heater according to claim 1, wherein the determining that the hot water outlet flow of the water heater is not zero according to the outlet water temperature values and the tank temperature values comprises:

determining that the outlet water temperature value is greater than or equal to the difference between the water tank temperature value at the corresponding moment and a second threshold value according to the outlet water temperature values and the water tank temperature values within a fifth preset time length;

and determining that the hot water outlet flow of the water heater is not zero.

4. The water heater control method according to claim 1, further comprising:

determining that the hot water outlet flow of the water heater is zero;

5. The water heater control method according to claim 4, wherein the determining that the hot water outflow of the water heater is zero comprises:

determining that the current outlet water temperature value is smaller than the difference between the current water tank temperature value and a second threshold value;

and determining that the hot water outlet flow of the water heater is zero.

6. The water heater control method according to claim 4, wherein the determining that the hot water outflow of the water heater is zero comprises:

if the continuous drop value of the outlet water temperature value within a third preset time is determined to be greater than or equal to a fourth threshold value according to the plurality of outlet water temperature values, determining that the hot water outlet flow of the water heater is zero;

or if the drop value of the outlet water temperature value within a fifth preset time period is determined to be greater than or equal to a fifth threshold value according to the plurality of outlet water temperature values, determining that the hot water outlet flow of the water heater is zero.

7. The method for controlling the water heater according to any one of claims 1 to 6, wherein the controlling the water heater to heat according to the current outlet water temperature value comprises the following steps:

determining target heating power of the water heater according to the current effluent temperature value;

and controlling the water heater to heat based on the target heating power.

8. The method for controlling the water heater according to claim 7, wherein the current time is a starting heating time of the water heater, and the determining the target heating power of the water heater according to the current outlet temperature value comprises:

if the current outlet water temperature value is smaller than a sixth threshold value, determining that the target heating power of the water heater is a first heating power; alternatively, the first and second electrodes may be,

if the current effluent temperature value is determined to be greater than or equal to a sixth threshold value, determining that the target heating power of the water heater is a second heating power;

wherein the second heating power is less than the first heating power.

9. The method for controlling the water heater according to claim 7, wherein the determining the target heating power of the water heater according to the current outlet water temperature value comprises:

determining that the temperature of the water is continuously increased according to the plurality of outlet water temperature values;

and if the current effluent temperature value is determined to be greater than or equal to a sixth threshold value, determining that the target heating power of the water heater is a second heating power.

10. The water heater control method according to claim 9, wherein after determining that the target heating power of the water heater is the second heating power, further comprising:

and if the current effluent temperature value is larger than a seventh threshold value, determining that the target heating power of the water heater is a third heating power, wherein the third heating power is smaller than the second heating power.

11. The water heater control method according to claim 10, wherein after determining that the target heating power of the water heater is the third heating power, further comprising:

determining that the temperature of the water is continuously reduced according to the plurality of outlet water temperature values;

and if the current outlet water temperature value is determined to be smaller than or equal to an eighth threshold value, determining the target heating power of the water heater to be a second heating power.

12. The water heater control method according to claim 11, wherein after determining that the target heating power of the water heater is the second heating power, further comprising:

and if the current outlet water temperature value is determined to be less than or equal to a ninth threshold value, determining the target heating power of the water heater to be the first heating power.

13. The utility model provides a water heater controlling means, its characterized in that is applied to the water heater, the delivery port of water heater is equipped with first temperature sensor, be equipped with second temperature sensor in the water tank of water heater, water heater controlling means includes:

the determining module is used for determining that the hot water outlet flow of the water heater is not zero according to the outlet water temperature values and the water tank temperature values;

and the processing module is used for controlling the water heater to heat according to the current effluent temperature value.

14. The utility model provides a water heater controlling means, its characterized in that is applied to the water heater, the delivery port of water heater is equipped with first temperature sensor, be equipped with second temperature sensor in the water tank of water heater, water heater controlling means includes:

a processor, a memory;

the memory stores a computer program;

the processor, when executing a computer program stored in a memory, implements the water heater control method of any one of claims 1 to 12.

15. A water heater characterized in that a first temperature sensor is provided at a water outlet of the water heater, a second temperature sensor is provided in a water tank of the water heater, and the water heater further comprises a water heater control device as claimed in claim 13 or 14.

16. A computer-readable storage medium having computer-executable instructions stored thereon, which when executed by a processor, implement a water heater control method as claimed in any one of claims 1 to 12.