CN110398067B - Water heater, control method thereof and computer-readable storage medium - Google Patents

Water heater, control method thereof and computer-readable storage medium Download PDF

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Publication number
CN110398067B
CN110398067B CN201910608472.8A CN201910608472A CN110398067B CN 110398067 B CN110398067 B CN 110398067B CN 201910608472 A CN201910608472 A CN 201910608472A CN 110398067 B CN110398067 B CN 110398067B
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water
time period
data acquisition
reliability
water heater
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CN110398067A (en
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申勇兵
谢亚光
王明
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Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
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Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
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Priority to PCT/CN2019/129850 priority patent/WO2021004036A1/en
Priority to EP19937300.2A priority patent/EP3995755A4/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices
    • F24H9/2007Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021Storage heaters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention discloses a control method of a water heater, which comprises the following steps: acquiring a first total number of first time periods in a current data acquisition cycle, wherein each first time period belongs to a different date; dividing the first total number of the first time period into a plurality of calculation sets according to different preset interval days; calculating a first water reliability of each calculation set; determining whether the current data acquisition cycle is valid according to the first water reliabilities of the plurality of calculation sets. The invention also discloses a water heater and a computer readable storage medium. The invention can effectively determine whether the data acquisition period is effective or not.

Description

Water heater, control method thereof and computer-readable storage medium
Technical Field
The invention relates to the technical field of water heaters, in particular to a water heater, a control method thereof and a computer readable storage medium.
Background
At present, a water heater has become a popular household appliance. Water heaters have more and more intelligent functions. And the intelligent function of the water heater is realized based on the water consumption parameters when the user uses the water heater.
In the prior art, a water heater can acquire water use parameters of a user within a certain time period so as to realize an intelligent function according to the water use parameters within the time period. If the user goes out, cause the water use parameter of a period of time in the time cycle blank, if the water heater adopts the water use parameter of this type of time cycle, can make the water heater can't accurate analysis user's water use law, lead to the unable accurate realization of intelligent function of water heater, prior art has the problem of whether unable discernment data acquisition cycle is effectual.
Disclosure of Invention
The invention mainly aims to provide a water heater, a control method thereof and a computer readable storage medium, and aims to solve the problem that whether a data acquisition period is effective or not cannot be identified.
In order to achieve the above object, the present invention provides a control method of a water heater, including the following steps:
acquiring a first total number of first time periods in a current data acquisition cycle, wherein each first time period belongs to a different date;
dividing the first total number of the first time period into a plurality of calculation sets according to different preset interval days;
calculating a first water reliability of each calculation set;
determining whether the current data acquisition cycle is valid according to the first water reliabilities of the plurality of calculation sets.
In order to achieve the above object, the present invention further provides a water heater, which includes a memory, a processor, and a control program of the water heater stored in the memory and executable on the processor, wherein the heating program of the water heater realizes the steps of the control method of the water heater as described above when executed by the processor.
To achieve the above object, the present invention also provides a computer-readable storage medium storing a control program of a water heater, which when executed by a processor, implements the steps of the control method of the water heater as described above.
According to the water heater and the control method and the computer readable storage medium thereof provided by the invention, the water heater obtains the total number of time periods in a data acquisition cycle, then divides the total number of the first time period into a plurality of calculation sets according to different preset interval days, and calculates the water consumption reliability of each calculation set, so that whether water fluctuation exists in each data acquisition cycle of a user is determined according to the plurality of water consumption reliabilities, and whether the data acquisition cycle is effective or not is accurately identified.
Drawings
FIG. 1 is a schematic diagram of a hardware structure of a water heater according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram illustrating a method of controlling a water heater according to an embodiment of the present invention;
FIG. 3 is a detailed flowchart of step S40 in FIG. 2;
FIG. 4 is another embodiment of a method of controlling a water heater according to the present invention;
FIG. 5 is a further embodiment of a control method for a water heater according to the present invention;
FIG. 6 is a flowchart illustrating a refinement of the determination of the second water reliability of the user in the step S80 of FIG. 5 during the first time period;
fig. 7 is another detailed flowchart of the step S80 in fig. 5 for determining the second water reliability corresponding to the first time period.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The main solution of the embodiment of the invention is as follows: acquiring a first total number of first time periods in a current data acquisition cycle, wherein each first time period belongs to different dates; dividing the first total number of the first time period into a plurality of calculation sets according to different preset interval days; calculating a first water reliability of each calculation set; determining whether the current data acquisition cycle is valid according to the first water reliabilities of the plurality of calculation sets.
The water heater divides the first time period of the data acquisition period into a plurality of calculation sets, and the water use reliability of each calculation set is calculated, so that whether water fluctuation exists in each data acquisition period of a user is determined according to the plurality of water use reliabilities, and whether the data acquisition period is effective or not is accurately identified.
As one implementation, the water heater may be as shown in fig. 1.
The embodiment scheme of the invention relates to a water heater, which comprises: a processor 101, e.g. a CPU, a memory 102, a communication bus 103. Wherein a communication bus 103 is used for enabling the connection communication between these components.
The memory 102 may be a high-speed RAM memory or a non-volatile memory (non-volatile memory), such as a disk memory. As shown in fig. 1, a control program of the water heater may be included in the memory 103 as a kind of computer storage medium; and the processor 101 may be configured to call the control program of the water heater stored in the memory 102 and perform the following operations:
acquiring a first total number of first time periods in a current data acquisition cycle, wherein each first time period belongs to a different date;
dividing the first total number of the first time period into a plurality of calculation sets according to different preset interval days;
calculating a first water reliability of each calculation set;
determining whether the current data acquisition cycle is valid according to the first water reliability of the plurality of calculation sets.
Based on the hardware architecture of the water heater, the embodiment of the control method of the water heater is provided.
Referring to fig. 2, fig. 2 is a diagram of an embodiment of a control method of a water heater according to the present invention, the control method of the water heater includes the following steps:
step S10, acquiring a first total number of first time periods in a current data acquisition cycle, wherein each first time period belongs to different dates;
in this embodiment, the water heater can collect the water consumption parameter of the user using the water heater, and self-study is performed according to the water consumption parameter, so as to analyze the usage law of the user on the water heater, wherein the usage law is the water consumption law of the user, and the water consumption law means that the user needs to use water in a certain time period or does not need to use water in a certain time period.
If the fluctuation is large, it can indicate that the user does not have the water usage law in the time period, that is, the data collection cycle is invalid in the time period.
Specifically, the water heater needs to firstly judge whether a certain time period in the data acquisition cycle is valid, if yes, the water consumption fluctuation of the user in the time period is small, the data acquisition cycle is a user habit cycle, namely the user has a water consumption rule in the time period; if the water consumption is invalid, the water consumption fluctuation of the user in the time period is large, and the user has no water consumption rule in the time period. Specifically, taking the time length of the data acquisition cycle as 7 days as an example, the water heater acquires first time periods of different dates in the data acquisition cycle, and the first total number of the first time periods is 7.
Step S20, dividing the first total number of the first time period into a plurality of calculation sets according to different preset interval days;
the water heater further takes different preset interval days K, wherein K is 1 day, 2 days, 3 days, 4 days, 5 days and 6 days … N-1 day, N is the number of days of the data acquisition cycle, namely the data acquisition cycle comprises N first time periods, in the embodiment, the water heater can take more than two preset interval days from 1 day, 2 days, 3 days, 4 days, 5 days and 6 days … N-1 days to obtain a corresponding number of calculation sets, for example, if the number of the preset interval days is 3, there are 3 calculation sets. And calculating the interval duration between the first time periods adjacent to each other in the set as preset interval days. For example, the data acquisition cycle is 7 days, the preset interval days are 1 day and 2 days respectively, then the calculation set corresponding to the preset interval days being 1 day includes 7 first time periods, and the calculation set corresponding to the preset interval days being 2 days includes 4 first time periods of 1, 3, 5, and 7. The more the number of preset interval days is adopted, the higher the accuracy of whether the data acquisition cycle is effective or not is. In addition, the number of the first time periods in each calculation set can be limited, the number of the first time periods in the calculation sets is greater than or equal to a preset number, so that the situation that the error is large due to the fact that the number of samples in the calculation sets is too small is avoided, and the preset number can be any suitable number.
Step S30, calculating the first water reliability of each calculation set;
after the calculation sets are determined, the first water reliability of each calculation set is calculated, specifically, the second total number of the first time periods in the calculation sets and the number of the first time periods with water are determined, and a ratio obtained by dividing the number of the first time periods with water by the second total number is the first water reliability.
And step S40, determining whether the current data acquisition cycle is valid according to the first water reliability of the plurality of calculation sets.
After determining the first water reliability corresponding to each calculation set, the water heater determines the maximum first water reliability to serve as a target water reliability, then sequentially calculates first difference values between the target water reliability and each of other first water reliability, and uses the first difference values larger than a preset difference value as target difference values, so as to determine the number of the target difference values; the water heater calculates a first ratio of the number of the target difference values to the total number of the first difference values, if the first ratio is larger than a first preset threshold value, the first preset threshold value can be any suitable value, for example, 70%, the water use fluctuation of the user is in an acceptable range, namely, the fluctuation is normal, at this moment, the data acquisition period is judged to be effective, and the data acquisition period is a user habit period; if the first ratio is smaller than or equal to the first preset threshold, it indicates that the water consumption of the user is abnormal, and the data acquisition cycle is invalid, that is, the user has no water consumption regularity in the first time period of the data acquisition cycle.
It should be noted that a plurality of data acquisition cycles may be set in the water heater, the time lengths of the data acquisition cycles are different, and when it is determined that the current data acquisition cycle is invalid, the next data acquisition cycle is used as the current data acquisition cycle, and steps S100 to S400 are executed again until the valid data acquisition cycle is determined. Of course, if all data collection cycles are invalid, it indicates that the user does not have the water usage pattern in the first time period.
In the technical scheme provided by the embodiment, the water heater acquires the total number of time periods in the data acquisition cycle, divides the total number of the first time period into a plurality of calculation sets according to different preset interval days, and calculates the water consumption reliability of each calculation set, so that whether water fluctuation exists in each data acquisition cycle of a user is determined according to the water consumption reliability, and whether the data acquisition cycle is effective is accurately identified.
Referring to fig. 3, fig. 3 is a detailed flowchart of step S40 in fig. 2, wherein the step S40 includes:
step S41, determining a second difference value between the maximum first water reliability and the minimum first water reliability, and an average value of the first water reliabilities;
step S42, calculating a second ratio between the second difference and the average, and determining whether the second ratio is less than or equal to a second preset threshold, wherein when it is determined that the second ratio is less than or equal to the second preset threshold, it is determined that the current data acquisition cycle is valid.
In this embodiment, the water heater may calculate the range and the average of the first water reliability of each calculation set, so as to determine whether the water fluctuation of the user in the first time period is normal according to the range and the average, that is, determine whether the data acquisition period is valid.
Specifically, the maximum first water reliability and the minimum water reliability are extracted from the water heater to calculate a second difference, and then an average value corresponding to each first water reliability is calculated. The water heater then calculates a second ratio between the second difference and the average value, and determines whether the second ratio is less than or equal to a second preset threshold, where the second preset threshold may be any suitable value, such as 150%. When the second ratio is smaller than or equal to a second preset threshold, the water fluctuation of the user in the first time period can be judged to be normal, namely the data acquisition cycle is effective; and if the second ratio is larger than a second preset threshold value, the data acquisition period is invalid.
Furthermore, the water heater is a household appliance, and when a user goes out, the user does not use the water heater on the day of going out. However, whether the water heater has the water consumption law in a certain time period is analyzed, and the factor of going out of the user is not taken into consideration, so that the calculated first water reliability is lower than the actual water consumption reliability, namely the water consumption law obtained by analyzing the water heater is not accurate. In contrast, when the target data acquisition period is determined to be invalid, the water heater can judge whether the water consumption parameters are not acquired in a certain day of the target data acquisition period, if so, the day can be removed from the data acquisition period to obtain a new data acquisition period, and then whether the new data acquisition period is valid is judged. However, it should be noted that, when the water heater analyzes the water usage habit of the user, a certain number of samples must be provided, that is, when the number of days of the new data acquisition cycle is greater than the preset number of days, it may be determined whether the user is valid in a certain time period of the new data acquisition cycle again.
Referring to fig. 4, fig. 4 is another embodiment of the control method of the water heater of the present invention, after step S40, the method further includes:
step S50, when the current data acquisition cycle is determined to be effective, determining the historical maximum water consumption of the user in a first time period in the current data acquisition cycle as a first target water consumption;
in this embodiment, if the data collection period is valid, it may be determined that the user has a water usage pattern in the first time period, and at this time, the historical maximum water usage amount of the user in the first time period in the data collection period is used as the first target water usage amount.
Step S60, determining a first target operation parameter according to the first target water consumption;
and step S70, controlling the water heater to operate according to the first target operation parameter in the first time period, and/or controlling the water heater to operate according to the first target operation parameter in the first time period.
After the first target water consumption is determined, the water heater can determine a first target operation parameter of the water heater according to the first target water consumption. The first target operation parameter comprises at least one of a target set temperature, a parameter corresponding to the advanced heating time and a parameter corresponding to the heating mode of the water heater. The heating modes include a water discharge heating mode and a water discharge non-heating mode. In different heating modes, the set temperature of the water heater is different, and the heating time length in advance is different. For example, the set temperature of the water heater in the discharge heating mode is greater than the set temperature of the discharge non-heating mode, and the discharge non-heating mode requires pre-heating of the water heater, while the discharge heating mode does not necessarily require pre-heating of the water heater. The parameters corresponding to the heating duration in advance can be the heating duration, the heating power and the like of the water heater, and the parameters corresponding to the heating mode can be the start and stop of each heating device in the water heater and the like.
When the first target water consumption of a user is small, the water heater can adopt a water discharging non-heating mode as a target heating mode, at the moment, the water heater determines a set temperature according to the first target water consumption, and then determines the heating rate of the heating device to water, so that the heating time length in advance is determined according to the set temperature and the heating rate.
When the first target water consumption of a user is larger, the water heater can adopt a water discharging heating mode as a target heating mode, and at the moment, the water heater determines a set temperature according to the first target water consumption and the inlet water temperature so as to control the water heater to operate.
It should be noted that, when the first target operation parameter includes the advanced heating time, the water heater determines an operation time point of the water heater according to the advanced heating time, and when the current time point reaches the operation time point, the water heater is controlled to operate, so that the water heater operates according to the first target operation parameter before the first time period. When the first target operating parameter does not include the early heating time period, the water heater is operated in the first time period according to the first target operating parameter, or operated before the first time period, or operated before and within the first time period.
In the technical scheme provided by the embodiment, when the water heater determines that the data acquisition period is valid, the target water consumption corresponding to the user in the time period is determined, and the target operation parameter of the water heater is determined according to the target water consumption, so that the water heater operates according to the target operation parameter in the time period, or the water heater operates in advance according to the target operation parameter before the time period; because the water heater can accurately determine the target water consumption of the user in the time period, the water heater can accurately provide a proper amount of hot water for the user, the excessive or insufficient hot water provided by the water heater is avoided, and the heating control of the water heater is reasonable.
Referring to fig. 5, fig. 5 is a further embodiment of the control method of the water heater of the present invention, after step S40, the method further includes:
step S80, when the current data acquisition cycle is determined to be invalid, determining the second water reliability of the user in the first time period, so as to determine a second target water consumption according to the second water reliability;
in this embodiment, the user does not have a water usage pattern for the first time period when it is determined that the data collection period is invalid. At the moment, the water heater determines a second target water consumption corresponding to the user in the first time period by determining the second water reliability of the user in the first time period.
The water use reliability represents the probability of the water heater being used by the user in the time period, and the higher the water use reliability is, the higher the probability of the water heater being used by the user in the time period is. The water use reliability corresponding to the first time period can be determined according to the water use times of the user in the first time period, and the water use reliability is higher when the water use times are higher when the number of the water use times in the first time period on different dates is constant.
The water heater can determine a second target water consumption of the user in the first time period through a second water reliability corresponding to the first time period. Specifically, the water heater divides the second water reliability into a plurality of reliability intervals, for example, [ 100%, 85% ], (85%, 70% ], (75%, 55% ], (55%, 40% ]), and (40%, 0% ] five intervals, each reliability interval corresponding to one water usage level, e.g., [ 100%, 85% ] corresponding to a water usage level of 1 grade, (85%, 70% ] corresponding to a water usage level of 2 grade, (75%, 55% ] corresponding to a water usage level of 3 grade, (55%, 40% ] corresponding to a water usage level of 4 grade, (40%, 0% ] corresponding to a water usage level of 5 grade, it is understood that the higher the second water reliability is, the lower the water usage level is, each water usage level has a corresponding water usage amount, the water heater determines the reliability interval in which the second water reliability is located after determining the second water reliability, and determining the water consumption grade according to the second reliability interval, so that the water consumption corresponding to the water consumption grade is used as a second target water consumption.
Step S90, determining a second target operation parameter according to the second target water consumption;
and S100, controlling the water heater to operate according to the second target operation parameter in the first time period, and/or controlling the water heater to operate according to the second target operation parameter in the first time period.
The second target operating parameter includes at least one of an advance heating period, a set temperature, and a heating mode. The control flow of the water heater operating according to the second target operating parameter is consistent with the control flow of the water heater operating according to the first target operating parameter, and is not described in detail herein.
In the technical scheme provided by the embodiment, after the water heater determines that the user does not have the water use rule in the first time period, the water use reliability of the user in the first time period is calculated, so that the target water use amount is determined according to the water use reliability, and the operation of the water heater is controlled according to the target water use amount, so that the operation of the water heater is controlled through the water use reliability representing the water use probability of the user under the condition that the water heater cannot operate according to the water use rule, and the condition that the water heater cannot provide hot water due to the fact that the user has no water use rule in the time period is avoided.
Referring to fig. 6, fig. 6 is a detailed flowchart of the step S80 in fig. 5 for determining the second water reliability of the user in the first time period, that is, the step S80 includes:
step S81, determining a first total number of first time periods and the number of the first time periods with water consumption in a data acquisition cycle, wherein the dates of the first time periods in the data acquisition cycle are different;
step S82, determining a second water reliability corresponding to the user in the first time period according to the number of the first time periods having water usage in the data acquisition cycle and the first total number of the first time periods.
In this embodiment, the water heater is provided with a data acquisition cycle, and the duration of the data acquisition cycle may be the last week, two weeks, three weeks, or the like. The water heater determines the total number of the same first time periods on different dates in the data acquisition cycle, for example, when the time length of the data acquisition cycle is one week, then the data acquisition cycle has 7 first time periods from 9 am to 10 am, that is, the first total number of the first time periods is 7. When the water heater detects that a user uses the water heater, the time period of using the water heater is related to the water consumption of the user, so that the number of the first time periods with water consumption is determined after the water heater obtains a plurality of first time periods.
The water heater may determine the second water reliability based on the number of first time periods with water usage and the first total number of first time periods. For example, the mapping relationship between the number of the first time periods, the total number of the first time periods, and the water usage reliability is stored in the water heater, and after the total number of the first time periods and the number of the first time periods with water are determined, the water heater may determine the second water usage reliability according to the mapping relationship, the total number of the first time periods, and the number of the first time periods with water.
In the technical scheme provided by the embodiment, the water heater determines the total number of the first time periods with different dates in the data acquisition cycle and the number of the first time periods with water consumption, so that the water usage reliability is determined according to the total number of the first time periods and the number of the first time periods with water consumption, and the target water consumption of a user in the first time period is accurately determined by the water heater according to the water usage reliability.
In one embodiment, the water heater calculates a fourth ratio between the number of the first time periods having water usage and the first total number of the first time periods, the fourth ratio is indicative of the frequency of water usage by the user in the first time periods, and the greater the fourth ratio, the higher the frequency of water usage by the user in the first time periods. In this regard, the fourth ratio may be directly used as the second water reliability to characterize the reliability of the user for using water in the time period.
In one embodiment, the water heater is divided into a plurality of time periods, and after a user uses the water heater in a certain time period, the probability that the user uses hot water in the next time period is influenced. For example, if the user takes a bath at 8 pm to 9 pm and goes to sleep, then the probability of the user using water decreases from 9 pm to 10 pm, from 10 pm to 11 pm, and from 11 pm to 12 pm, so that the influence of the user using water in the time period before 9 pm to 10 pm needs to be considered when calculating 9 pm to 10 pm.
For this, the water heater determines a second time period earlier than the first time period, the second time period is different from the date of the first time period, the second time period comprises one or more sub-time periods, for example, when the first time period is 1:00am-2:00am, the second time period is 0:00am-1:00am, the second time period only comprises one sub-time period, and the sub-time period is 0:00am-1:00 am; at a first time period of 3:00am-4:00am, then a second time period of 0:00am-3:00am, the second time period comprising three sub-time periods of 0:00am-1:00am, 1:00am-2:00am, 2:00am-3:00am, respectively.
The water heater calculates the total number of the sub-periods in the data acquisition cycle and the number of the sub-periods with water consumption, so that a fifth ratio is obtained according to the number of the sub-periods with water consumption and the total number of the sub-periods, and if the second period comprises a plurality of sub-periods, a plurality of fifth ratios exist.
And after the fifth ratio is obtained, setting corresponding weights for each sub-time period and the first time period. Since the influence of the earlier sub-period on the first period is smaller, the earlier sub-period has a smaller weight, i.e., the first period has the largest weight. And the water heater performs weighted calculation on each fifth ratio and each fourth ratio to obtain a target ratio, wherein the target ratio is the second water reliability of the user in the first time period.
In the technical scheme provided by the embodiment, the water reliability of the user in the first time period is accurately determined according to the influence of the second time period earlier than the first time period on the first time period.
Referring to fig. 7, fig. 7 is another detailed flowchart of the step S80 in fig. 5 for determining the second water reliability corresponding to the user in the first time period, and the step S80 includes:
step S83, determining a third total number of first time periods and the number of first time periods with water in each type of data acquisition cycle, wherein the time lengths of the data acquisition cycles are different;
step S84, calculating a sixth ratio between the number of the first time periods with water in each type of data acquisition cycle and the third total number of the first time periods;
step S185, determining the maximum sixth ratio as the second water reliability corresponding to the first time period.
In the embodiment, the user has a large number of times of historical water consumption for the water heater in a certain time period, and has a small number of times of historical water consumption for the water heater in another time period, and multiple times of water consumption of the user in one time period are recorded as the times of one-time historical book consumption. At this time, when the water heater is used for calculating the water use reliability, the water use reliability of the user in the time period is inaccurate due to the difference of the user, that is, the water use reliability of the user in the time period is lower than the actual water use reliability.
In this regard, the water heater is provided with a plurality of data acquisition cycles, and the time lengths of the data acquisition cycles are different, for example, the time length is one week, the time length is two weeks, the time length is three weeks, and the like. The last day of the data acquisition cycle is the same day, and it can be understood that the data acquired in the data acquisition cycle is updated along with the lapse of time, for example, the data acquisition cycle has a time length of one week, if the date of the first time period is 6 months and 8 days, the day with the earliest time in the data acquisition cycle is No. 6 months and 1, and the schedule of the first time period is changed to No. 6 months and 9 days, the day with the earliest time in the data acquisition cycle is updated to No. 6 months and 2, that is, the water heater replaces the water usage parameter acquired in No. 6 months and 9 days with the water usage parameter acquired in No. 6 months and 1 days.
And the water heater calculates the third total number of the first time periods in each type of data acquisition cycle and the number of the first time periods with water, and the sixth ratio corresponding to the data acquisition cycle is obtained by dividing the number of the first time periods with water by the third total number of the first time periods. Therefore, the water heater calculates to obtain a plurality of sixth ratios, and then the maximum sixth ratio is used as the water use reliability corresponding to the user in the first time period.
In this embodiment, a plurality of data acquisition cycles are set, so that the corresponding water use reliability of the user in each data acquisition cycle is sequentially calculated, and the maximum water use reliability is used as the second water use reliability of the user in the first time period, thereby eliminating the problem that the water use reliability determined by the water heater is inaccurate when the user goes out.
In one embodiment, the water heater determines the current water usage level according to the second water reliability of the user in the first time period, so that the second target water usage amount corresponding to the user in the first time period is determined according to the current water usage level.
Specifically, when the water consumption level is 1 grade or 2 grade, the water heater can accurately determine the water consumption of the user in the time period. Therefore, the maximum water consumption of the first time period in the preset data acquisition period with the maximum time length of the user is used as the water consumption corresponding to the water consumption grade of 1 grade or 2 grades. It should be noted that, when determining whether the target data acquisition cycle is valid, the water heater counts the number of the first time periods in each set in the data acquisition cycle, and defines a set with a number greater than a preset number as a valid set, that is, the number of sample data in the set needs to be greater than the preset number; because the user does not have the water usage law in the first time period, the number of the corresponding effective sets is calculated by the water heater in each data acquisition period, and the water heater determines the data acquisition period with the most effective sets. And the larger the time length of the data acquisition cycle is, the more the sets of the data acquisition cycle are, the more the effective sets are, and for this reason, when the water consumption level of the water heater is determined to be 1 grade and 2 grade subsequently, the maximum water consumption of the user in the first time period in the data acquisition cycle with the maximum time length is directly used as the water consumption corresponding to the water consumption level of 1 grade and 2 grade.
When the water consumption level of the user in the first time period is 3 grades, the water consumption of the user in the time period is accurately determined by the water heater. In this regard, the upper limit of the water consumption gear at which the maximum water consumption of the user in the first time period is located may be used as the water consumption corresponding to the water availability class 3. For example, the water heater can divide the water consumption gear into five gears, namely N1 gears: (0, Y), N2 th: (Y, Y + m), N3 th: (Y + m, Y +2m), N4 th: (Y +2m, Y +3m) and N5 th: (Y +3m, Y +4 m). And Y and m are fixed values of any combination number, for example, when the water level of the user in the first time period is 3 grades, and the maximum water consumption is Y +2.5m, the second target water consumption of the user in the first time period is Y +3 m.
When the water consumption level of the user in the first time period is 4 grades, the water consumption of the user in the time period cannot be accurately determined by the water heater. And adding the preset water quantity to the water quantity corresponding to the water consumption grade 3, wherein the preset water quantity is the redundant quantity, and the water consumption corresponding to the water consumption grade 4 is obtained.
And when the water consumption level is 5, the water heater basically cannot determine the water consumption of the user in the first time period, but the possibility of water consumption still exists in the user, and therefore the water consumption corresponding to the water consumption level 5 can be obtained by adding the preset water quantity to the water consumption of the user corresponding to the water consumption level 4.
The above is merely an exemplary list of the water consumption corresponding to the water usage level, and the water heater can be modified appropriately according to the actual water usage condition of the user in the first time period.
When the current water consumption grade is determined to be smaller than the preset grade, determining a data acquisition cycle with the maximum time length, and taking the maximum water consumption of the user in a first time period in the preset data acquisition cycle with the maximum time length as a second target water consumption;
when the current water consumption level is determined to be equal to a preset level, taking the upper limit value of the water consumption gear where the maximum water consumption of the user in a first time period is as a second target water consumption;
and when the current water usage level is determined to be greater than the preset level, increasing the water consumption of a target water usage level to serve as a second target water consumption, wherein the target water usage level is lower than the current water usage level and is different from the current water usage level by one level. For example, when the current water usage level is 4, the target water usage level is 3.
In one embodiment, the water heater analyzes the water consumption law of the user by combining the water consumption parameters associated with all time periods, and then realizes the intelligent function of the water heater according to the water consumption law. Specifically, the water heater determines a water demand corresponding to a current time period, wherein the water demand is determined according to water use reliability; determining a target set temperature of the water heater according to the water demand; and controlling the heating device of the water heater to operate according to the target set temperature.
The water heater can determine the water consumption demand of the user in the current time period according to the water consumption level.
After the water heater determines the water demand, the target set temperature of the water heater can be determined according to the water demand, namely after the water heater controls the heating device to operate through the target set temperature, the hot water provided by the water heater in the current time period is larger than or equal to the water demand of the user in the current time period. The water heater stores a mapping relation between the set temperature and the water demand, so that the set temperature can be determined according to the water demand.
It should be noted that, in general, the water heater sets the inlet water temperature to be lower, and the inlet water temperature is regarded as a constant, so that the set temperature can be determined according to the water demand. However, in practical situations, the inlet water temperature of the water heater may be high, and if the water heater is at a set temperature determined according to the water demand, the amount of hot water that can be actually output by the water heater is greater than the water demand of the user, or is much greater than the water demand of the user, which causes waste of energy of the water heater.
The water heater is provided with a plurality of water discharging modes, wherein the water discharging modes comprise a water discharging non-heating mode, a water discharging heating mode, a capacity increasing mode and the like. The water heater has corresponding maximum hot water output in different discharge modes. Specifically, the water heater divides the water inlet temperature into N sections at 5-40 ℃, the water outlet temperature into N sections at 35-45 ℃, the set temperature is 35-80 ℃, the N sections are divided, and when the water outlet temperature is 35-45 ℃, hot water is output by the water heater; the water heater sets different inlet water temperatures and set temperatures in different heating modes, and acquires the output quantity of the outlet water temperature at 35-45 ℃, wherein the output quantity is the maximum hot water output quantity corresponding to the water discharging mode. The water heater constructs a mapping relation table according to the data relation among the maximum hot water output quantity, the water inlet temperature, the set temperature and the water discharging mode, and the maximum hot water output quantity can be found in the mapping relation table only according to the water discharging mode, the water inlet temperature and the set temperature. It should be noted that the set temperature used by the water heater to determine the maximum hot water output amount refers to a current set temperature corresponding to a current time period of the water heater.
After the maximum hot water output quantity corresponding to each water discharge mode is determined, the water consumption demand and the maximum hot water output quantity are compared, and the water discharge mode corresponding to the maximum hot water output quantity larger than the water consumption demand is used as a target water discharge mode. And the water heater searches a set temperature in a mapping relation table according to the target water discharge mode, the maximum hot water output quantity corresponding to the target water discharge mode and the water inlet temperature, wherein the set temperature is the target set temperature.
The water discharge modes with the maximum hot water output larger than the water demand of the user can be all used as target water discharge modes, but when the difference between the maximum hot water output and the water demand is large, the water heater provides more hot water, and the water heater wastes more energy. In contrast, the water heater firstly judges whether the water discharge mode with the smaller maximum hot water output is the target water discharge mode or not, and then judges whether the water discharge mode with the larger maximum hot water output is the target water discharge mode or not, so that the hot water provided by the water heater for users is not excessive.
In the water discharging non-heating mode, the maximum hot water output quantity corresponding to the water heater is the minimum, so that the water heater firstly judges whether the maximum hot water output quantity corresponding to the water discharging non-heating mode is larger than the water using requirement quantity, and if so, the water discharging non-heating mode is taken as the target water discharging mode.
If the maximum hot water output quantity corresponding to the water discharging non-heating mode is less than or equal to the water demand of the user, the water heater judges whether the maximum hot water output quantity corresponding to the water discharging heating mode is greater than the water demand, the maximum hot water output quantity corresponding to the water discharging heating mode is greater than the maximum hot water output quantity corresponding to the water discharging non-heating mode, and if the maximum hot water output quantity corresponding to the water discharging heating mode is greater than the water demand, the water discharging heating mode is taken as the target water discharging mode.
If the maximum hot water output quantity corresponding to the water discharging heating mode is less than or equal to the water demand of a user, the water heater takes a capacity increasing mode as a target water discharging mode, the maximum hot water output quantity corresponding to the capacity increasing mode is the maximum of the three water discharging modes, the capacity increasing mode refers to the water heater collecting other means to increase the hot water output quantity, for example, the water heater is internally provided with a standby heating device, and the standby heating device is started when the water heater enters the capacity increasing mode.
When the water heater is in a water discharging state, namely the water heater is used by a user, a part of hot water is output by the water heater, and at the moment, the set temperature of the hot water needs to be determined again, so that the quantity of the hot water output by the water heater and the quantity of the hot water output by the water heater are equal to or slightly larger than the water using requirement of the user.
In contrast, when the water heater is in a water discharging state, the output quantity of hot water in the water heater is detected in real time, the output quantity of the hot water is the quantity of outputted hot water, the difference value between the water demand quantity and the outputted hot water quantity is calculated by the water heater, the difference value is the residual water consumption quantity, the water heater detects the water inlet temperature through a temperature sensor arranged at the bottom of the inner container, the temperature is set according to the water inlet temperature, the residual water consumption quantity and the difference value of a target water discharging mode determined before the water heater in a mapping relation table, the set temperature is the current set temperature of the water heater, and the water heater controls the heating device according to the current set temperature, so that the energy waste of the water heater is less.
In one embodiment, the water heater analyzes the water consumption law of the user by combining the water consumption parameters associated with all time periods, and then realizes the intelligent function of the water heater according to the water consumption law. For example, a water heater acquires a first water consumption parameter corresponding to a user in a first time period, wherein the first water consumption parameter comprises a first water amount and a first water temperature; determining a target advanced heating time length corresponding to the first time period of the water heater according to the first water parameter and the heating power of the water heater; and controlling the heating device of the water heater to operate according to the target advanced heating time.
Specifically, the first water parameter includes a first water amount, and the first water parameter may also include a first water temperature, where the first water temperature is a temperature of hot water required by the user in the first time period, and the first water temperature may be determined according to a water usage habit temperature of the user in the first time period.
Specifically, the first water temperature can be regarded as hot water, that is, the first water temperature can be regarded as the temperature of the hot water, and the first water temperature can be 35-45 ℃. After the first water parameter is determined, the target set temperature of the water heater can be determined according to the first water parameter, namely after the water heater controls the heating device to operate through the target set temperature, the hot water provided by the water heater in the first time period is larger than or equal to the hot water amount of the user in the current time period. The water heater stores a mapping relation among the set temperature, the first water quantity and the first water temperature, so that the set temperature can be determined according to the first water quantity and the first water temperature. It should be noted that, in general, the water heater sets the inlet water temperature to be lower, and the inlet water temperature is regarded as a constant, so that the set temperature can be determined according to the water consumption and the water temperature. However, in actual situations, the water inlet temperature of the water heater may be high, and if the set temperature of the water heater is determined according to the water consumption, the amount of hot water which can be actually output by the water heater is larger than the water consumption of a user, or is far larger than the water consumption of the user, so that energy of the water heater is wasted.
Since the water heater is heated in advance, it can be considered that the water heater does not enter water, and the water heater obtains the water temperature in the liner, which can be the average water temperature in the liner. The bottom and the top of the inner container are provided with temperature sensors, the average value of the water temperatures detected by the two temperature sensors is the water temperature of the inner container, of course, the inner container can also be provided with a plurality of temperature sensors, and the average water temperature corresponding to the water temperatures acquired by the plurality of temperature sensors is the water temperature of the inner container.
When the target set temperature, the heating rate of the heating device to water and the water temperature of the inner container are determined, the advance heating time of the water heater can be calculated, and the advance heating time can be set as the target advance heating time.
After the target advanced heating time length is calculated by the water heater, the water heater can obtain the starting time point of the heating device according to the starting time point of the first time period and the target advanced heating time length, and then the heating device is controlled to operate when the current time point reaches the starting time point. It should be noted that, a plurality of heating devices, for example, 2 or 3 heating devices, may be set in the water heater, and when the water heater is operated in advance, the water heater needs to control the operation of each heating device.
The water heater determines the heating advance time length corresponding to a first time period and a second time period, wherein the second time period is positioned after the first time period and is adjacent to the first time period in terms of time.
And the water heater calculates a third water consumption parameter corresponding to the first water consumption and the second time period, wherein the third water consumption parameter comprises the total water consumption of the first time period and the second time period or comprises the total water consumption and the water consumption temperature, the water consumption temperature is the water consumption temperature of the user in the first time period and the second time period, and the target advanced heating time corresponding to the first time period is determined according to the third water consumption parameter, so that the water heater can provide sufficient hot water for the user in both the first time period and the second time period.
And when the first interval duration is less than the second advanced heating duration, the user water usage in the second time period does not influence the user water usage in the first time period, and at the moment, the advanced heating duration corresponding to the first time period is taken as the target advanced heating duration.
When the first interval duration is longer than the advanced heating duration corresponding to the second time period, the water heater determines the target heating duration of the first time period according to the first water consumption parameter and the second water consumption parameter, that is, the target advanced heating duration of the second time period is actually the sum of the first interval duration and the target advanced heating duration corresponding to the first time period, and at this time, the target advanced heating duration of the second time period does not need to be repeatedly determined. In this regard, when the water heater determines the target advanced heating time period of the first time period, it is necessary to determine whether the water heater simultaneously determines the target advanced heating time period corresponding to a third time period before the first time period, the third time period being adjacent in time to the first time period. And if the second interval duration is longer than the first advanced heating duration, the water heater can be judged not to determine the target advanced heating duration of the first time period in advance, and the target advanced heating duration of the first time period needs to be determined. When the second interval duration is less than or equal to the first advanced heating duration, it can be determined that the water heater determines the target advanced heating duration of the first time period in advance, and the water heater can determine the target advanced heating duration corresponding to the first time period according to the target advanced heating duration of the third time period, that is, the target advanced heating duration of the third time period plus the second interval duration is the target advanced heating duration of the first time period.
In one embodiment, the water heater analyzes the water consumption law of the user by combining the water consumption parameters associated with all time periods, and then realizes the intelligent function of the water heater according to the water consumption law. For example, the water heater determines the water use reliability corresponding to a first time period of a user, and determines the target water consumption according to the water use reliability; determining target operation parameters corresponding to the water heater according to the target water consumption; and controlling the water heater to operate according to the target operation parameter in the first time period, and/or controlling the water heater to operate before the first time period according to the target operation parameter.
Specifically, the water heater may determine a water usage reliability of the user over a time period, the water usage reliability characterizing a probability of the user using the water heater over the time period, the higher the water usage reliability, the greater the probability of the user using the water heater over the time period. The water use reliability corresponding to the first time period can be determined according to the water use times of the user in the first time period, and the water use reliability is higher when the water use times are higher when the number of the first time periods on different dates is fixed. After the water use reliability is determined, the reliability interval where the water use reliability is located is determined, and then the water use grade is determined according to the reliability interval, so that the water use quantity corresponding to the water use grade is used as the target water use quantity.
In one embodiment, the water heater analyzes the water consumption law of the user by combining the water consumption parameters associated with each time period, and further realizes the intelligent function of the water heater according to the water consumption law. For example, when the water heater determines that a user does not need water in a first time period, the water use reliability and the water inlet temperature corresponding to the first time period are obtained; and determining the target set temperature of the water heater according to the water use reliability and the inlet water temperature.
Specifically, the water heater determines a current water consumption grade corresponding to the water consumption reliability, wherein the higher the water consumption reliability is, the lower the current water consumption grade is; determining a temperature increment value according to the current water consumption level, wherein the lower the current water consumption level is, the smaller the temperature increment value is; and determining the target set temperature of the water heater according to the temperature increment value and the inlet water temperature.
If the current water consumption level is level 1, the accuracy that the user does not use the water heater in the first time period is very high, so that the target set temperature can be set to be the water inlet temperature, and the water inlet temperature is the historical water inlet temperature stored in the first time period by the water heater. If the current water consumption level is level 2, the accuracy that the user does not use the water heater is high, and at the moment, the target setting is set to be the inlet water temperature + the temperature increment value m. By analogy, when the current water consumption level is higher, the accuracy of judging that the water heater is not used by a user in a first time period by the water heater is lower, the target set temperature is higher, and the target set temperature can be determined by the following formula: the target set temperature is intake water temperature + K temperature increment value, where K is 0, 1,2,3 … …, and the water use reliability level determines the size of K, and when the water use reliability level is 1 level, K is 0, and when the water use reliability level is 2 levels, K is 1, and so on.
After the target set temperature of the water heater is determined, the first target operation parameter of the water heater can be determined according to the target set temperature of the water heater.
The invention also provides a water heater, which comprises a memory, a processor and a control program of the water heater, wherein the control program of the water heater is stored in the memory and can run on the processor, and when the control program of the water heater is executed by the processor, the control program of the water heater realizes the steps of the control method of the water heater according to the embodiment.
The present invention also provides a computer-readable storage medium storing a control program of a water heater, which when executed by a processor, implements the steps of the control method of the water heater according to the above embodiment.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element identified by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.

Claims (14)

1. A control method of a water heater is characterized by comprising the following steps:
acquiring a first total number of first time periods in a current data acquisition cycle, wherein each first time period belongs to different dates;
dividing the first total number of the first time period into a plurality of calculation sets according to different preset interval days;
calculating the first water reliability of each calculation set, and determining a second total number of the first time periods in the calculation sets and the number of the first time periods with water, wherein the ratio obtained by dividing the number of the first time periods with water by the second total number is the first water reliability;
determining whether the current data acquisition cycle is valid according to the first water reliability of the plurality of calculation sets;
the data acquisition cycle comprises N first time periods, and the preset interval days comprise at least 2 of 1,2 and 3 … N-1, so as to obtain any number of calculation sets from 2 to N-1;
after the step of determining whether the current data acquisition cycle is valid according to the first water reliabilities of the plurality of calculation sets, the method further comprises the following steps:
when the current data acquisition cycle is determined to be effective, determining the historical maximum water consumption of a user in a first time period in the current data acquisition cycle as a first target water consumption;
determining a first target operating parameter according to the first target water consumption;
controlling the water heater to operate according to the first target operation parameter in the first time period;
after the step of determining whether the current data acquisition cycle is valid according to the first water reliabilities of the plurality of calculation sets, the method further comprises the following steps:
when the current data acquisition cycle is determined to be invalid, determining second water reliability of the user in a first time period, and determining a second target water consumption according to the second water reliability;
determining a second target operating parameter according to the second target water consumption;
and controlling the water heater to operate according to the second target operation parameter in the first time period.
2. The method of controlling a water heater as set forth in claim 1, wherein said step of determining whether said data acquisition cycle is valid based on a first water reliability of a plurality of said sets of calculations comprises:
taking the maximum first water reliability as a target water reliability;
calculating a first difference between the target water use reliability and each of other first water use reliabilities except the target water use reliability;
and taking a first difference value larger than a preset difference value as a target difference value, and determining whether a first ratio of the number of the target difference values to the first difference value is larger than a first preset threshold value, wherein when the first ratio of the number of the target difference values to the first difference value is larger than the first preset threshold value, the current data acquisition period is judged to be valid.
3. The method of controlling a water heater as set forth in claim 1, wherein said step of determining whether said data acquisition cycle is valid based on a first water reliability of a plurality of said sets of calculations comprises:
determining a second difference value between the maximum first water reliability and the minimum first water reliability, and an average value of the first water reliabilities;
and calculating a second ratio between the second difference and the average value, and determining whether the second ratio is smaller than or equal to a second preset threshold, wherein when the second ratio is determined to be smaller than or equal to the second preset threshold, the current data acquisition cycle is determined to be valid.
4. The method of controlling a water heater as recited in claim 1, wherein the step of calculating the first water reliability for each calculation set comprises:
determining a second total number of first time periods and a number of first time periods with water in each of the calculation sets;
calculating a third ratio between the number of first time periods with water usage and the second total to determine a first water reliability of the calculation set corresponding to the second total.
5. The control method of a water heater as claimed in claim 1, wherein the number of the first time periods in the set of calculations is greater than or equal to a preset number.
6. The method as claimed in claim 1, wherein the water heater is provided with a plurality of data acquisition cycles, and the step of obtaining the first total number of the first time periods in the current data acquisition cycle is performed by using the next data acquisition cycle as the current data acquisition cycle when the current data acquisition cycle is determined to be invalid.
7. The method of claim 1, wherein the step of determining the second water reliability corresponding to the user for the first time period comprises:
determining a first total number of first time periods and the number of the first time periods with water in the data acquisition cycle, wherein the dates of the first time periods in the data acquisition cycle are different;
and determining the second water use reliability corresponding to the first time period of the user according to the number of the first time periods with water use in the data acquisition cycle and the first total number of the first time periods.
8. The method as claimed in claim 7, wherein the step of determining the second water reliability corresponding to the first period of time for the user based on the number of the first periods of time having water usage and the first total number of the first periods of time in the data collection cycle comprises:
calculating a fourth ratio between the number of first time periods with water usage and the first total number of first time periods;
and determining the second water reliability of the user in the first time period according to the fourth ratio.
9. The method of controlling a water heater as recited in claim 8, wherein said step of determining a second water reliability of said user for a first time period based on said fourth ratio comprises:
determining a second time period earlier than the first time period, wherein the first time period is on the same date as the second time period, and the second time period comprises one or more sub-time periods;
calculating a fifth ratio between the number of sub-periods with water usage and the total number of sub-periods in the data acquisition cycle;
and performing weighted calculation on the fourth ratio and each fifth ratio to determine a second water reliability of the user in the first time period.
10. The method of controlling a water heater as recited in claim 1, wherein the step of determining a second water reliability corresponding to the user over the first time period comprises:
determining a third total number of first time periods in each type of data acquisition cycle and the number of the first time periods with water, wherein the time lengths of the data acquisition cycles are different;
calculating a sixth ratio between the number of first time periods having water usage and a third total number of first time periods in each type of the data acquisition cycle;
and determining the maximum sixth ratio as the second water reliability corresponding to the user in the first time period.
11. The method of controlling a water heater as set forth in claim 1, wherein said step of determining a second target water usage based on said second water reliability includes:
determining a reliability interval where the second water use reliability is located, and determining the current water use level according to the reliability interval, wherein the higher the water use reliability is, the lower the current water use level is;
and determining a second target water consumption according to the current water consumption grade.
12. The method of controlling a water heater as set forth in claim 11, wherein said step of determining a second target water usage based on said current water usage level comprises:
when the current water consumption grade is determined to be smaller than the preset grade, determining a data acquisition cycle with the maximum time length, and taking the maximum water consumption of the user in a first time period in the preset data acquisition cycle with the maximum time length as a second target water consumption;
when the current water consumption level is determined to be equal to a preset level, taking the upper limit value of the water consumption gear where the maximum water consumption of the user in a first time period is as a second target water consumption;
and when the current water usage level is determined to be greater than the preset level, increasing the water consumption of a target water usage level to serve as a second target water consumption, wherein the target water usage level is lower than the current water usage level and is different from the current water usage level by one level.
13. A water heater comprising a memory, a processor, and a control program for the water heater stored in the memory and executable on the processor, wherein the heating program for the water heater when executed by the processor implements the steps of the control method for the water heater as recited in any one of claims 1-12.
14. A computer-readable storage medium, characterized in that it stores a control program of a water heater, which when executed by a processor implements the steps of the control method of a water heater according to any one of claims 1 to 12.
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