CN114294824A - Water use habit analysis method and device, terminal equipment and storage medium - Google Patents
Water use habit analysis method and device, terminal equipment and storage medium Download PDFInfo
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- CN114294824A CN114294824A CN202111537533.XA CN202111537533A CN114294824A CN 114294824 A CN114294824 A CN 114294824A CN 202111537533 A CN202111537533 A CN 202111537533A CN 114294824 A CN114294824 A CN 114294824A
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Abstract
The invention provides a water usage habit analysis method, a device, a terminal device and a storage medium, wherein a first array is established in advance, then a first water temperature change rate of a hot water tank of a heat pump water heater in the current period is calculated, the natural change rate of the water temperature with the calculation time nearest to the current period is obtained, whether the first water temperature change rate and the natural change rate of the water temperature meet the change rate standard or not is judged, if yes, the number of times is increased within the preset time period corresponding to the first array, finally the water usage habit of a user is determined according to the first array, a heating strategy is formulated, the habit analysis step is continuously executed, the determined water usage habit of the user is more accurate under the condition that the recorded times in the first array are more and more, and the embodiment of the invention determines the water usage habit of the user according to the first array continuously, the technical problem that a heating strategy suitable for a user cannot be determined in the prior art is solved.
Description
Technical Field
The embodiment of the application relates to the field of water heaters, in particular to a water usage habit analysis method and device, terminal equipment and a storage medium.
Background
At present, the air conditioner hot water dual-generation air energy heat pump that has now on the market can all have a hot water tank to be used for retaining usually, and the intaking of hot water tank generally all is the running water, does not have the softening treatment, can not directly reach the heat transfer part heating of machine (if sleeve pipe, board trade), otherwise scale deposit on heat transfer part easily, lead to the heat transfer effect variation, and the energy consumption height becomes, unable normal use even. Therefore, a closed pipeline is generally required to be designed for the two-way water supply, soft water (difficult to scale) is injected into the pipeline, hot water (soft water) after being heated by a heat pump is led to an inner coil of a hot water tank from the pipeline, and hot water in the coil exchanges heat with tap water (hard water) in the hot water tank. The other air energy water heater is characterized in that a fluorine pipe is directly communicated into a hot water tank, and the purpose of heating water is realized through heat exchange between a refrigerant and water.
Under the same operation condition, the higher the outlet water temperature of the air energy heat pump is, the lower the energy efficiency is. Therefore, the higher the set temperature of the hot water tank, the lower the energy efficiency of the air energy water heater during heating at high water temperature. According to the Fourier law of heat transfer science, the higher the temperature of the hot water tank is, the larger the temperature difference between the hot water tank and the ambient temperature is, the faster the heat loss speed of the hot water tank is, the more times and time the heat pump is started when the hot water tank is kept warm, and the greater the energy consumption, so that the energy efficiency of the heat pump water heater is improved and the energy consumption is reduced, and the technical problem which needs to be solved urgently at present is solved.
In the prior art, a corresponding heating strategy is generally formulated by analyzing water usage habits of users, so as to improve the heating efficiency of the heat pump water heater and reduce energy consumption. However, if the existing heat pump water heater wants to analyze the water consumption habits (peak water consumption and valley water consumption) of a user, a flow meter or a water meter and other sensors are often added in the heat pump water heater to judge the water consumption. For the air-conditioning hot water dual-combined heat pump, because of the existence of heat exchange of the closed soft water pipeline and the coil, the water outlet pipeline of the heat pump is not directly connected to the water using end, so that a flow sensor or a water meter is added on the water outlet pipeline of the heat pump, the water using amount of the hot water using side cannot be measured, and only a flowmeter is arranged on the water using side or the water supplementing side of a hot water tank, but the water using side and the water supplementing side pipeline do not belong to the standard parts of heat pump products, and the installation is needed to be purchased and installed by users, so that the installation cost of the users is increased, the installation difficulty is increased, and the scheme is difficult to be accepted by the consumers. For other water heater products with a water storage hot water tank (such as air energy water heaters, electric heaters and even boiler heating), a flow meter or a water meter must be added to judge the water using habit. Moreover, in the prior art, after the water usage habit of the user is determined, the water usage habit of the user cannot be modified again generally, and the water usage habit of the user cannot be intelligently modified according to the water usage condition of the user.
In summary, in the prior art, the water usage habit of the user cannot be intelligently modified according to the water usage condition of the user, so that the technical problem that the heating strategy suitable for the user cannot be determined exists.
Disclosure of Invention
The embodiment of the invention provides a water usage habit analysis method and device, terminal equipment and a storage medium, and solves the technical problem that a heating strategy suitable for a user cannot be determined due to the fact that the water usage habit of the user cannot be intelligently modified according to the water usage condition of the user in the prior art.
In a first aspect, an embodiment of the present invention provides a water usage habit analysis method, including the following steps:
establishing a first array, wherein the first array is used for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period;
executing a habit analysis step, specifically:
periodically calculating a first water temperature change rate of a hot water tank of the heat pump water heater in a current period, and acquiring a natural water temperature change rate with the calculation time being closest to the current period, wherein the natural water temperature change rate is calculated once every N periods;
judging whether the first water temperature change rate meets a change rate standard or not according to the natural change rate of the water temperature;
if so, increasing the times once in a preset time period corresponding to the first array according to the time of the current period;
and determining the water using habits of the user according to the first array, determining the corresponding heating strategies according to the water using habits, and re-executing the habit analysis step.
Preferably, the specific process of calculating the natural change rate of the water temperature every N cycles is as follows:
periodically calculating a second water temperature change rate of a hot water tank of the heat pump water heater in each period;
after every N periods, calculating the average change rate of the water temperature and the standard deviation of the change rate in the N periods according to the second water temperature change rate in each period of the N periods;
judging whether the standard deviation of the change rate is less than or equal to a preset standard deviation threshold value or not;
if yes, judging whether the historical water temperature natural change rate obtained by the last calculation exists;
if so, dividing the sum of the historical water temperature natural change rate and the average water temperature change rate by 2 to obtain a natural water temperature change rate;
and if the water temperature does not exist, taking the average change rate of the water temperature as the natural change rate of the water temperature.
Preferably, the specific process of determining whether the first water temperature change rate meets the change rate standard according to the natural water temperature change rate is as follows:
multiplying the natural change rate of the water temperature by a preset multiple to obtain a first natural change rate of the water temperature;
and judging whether the absolute value of the first water temperature change rate is larger than the absolute value of the first natural water temperature change rate.
Preferably, the first array is a 16-bit unsigned integer array, and the first array includes 25 first elements, where the first 24 first elements are respectively used to record the times that the change rate of the water temperature meets the change rate criterion in each hour, and the last first element is used to record the sum of the times recorded by the first 24 first elements in the first array.
Preferably, after the first water temperature change rate meets the change rate standard, before increasing the number of times within a preset time period corresponding to the first array according to the time of the current cycle, the method further includes the following steps:
judging whether the first array reaches a preset memory clearing condition or not;
if so, reducing the times recorded in the first array, and if not, continuing to execute the step of increasing the times once within a preset time period corresponding to the first array according to the time of the current period.
Preferably, the specific process of determining the water usage habit of the user according to the first array is as follows:
acquiring the sum of the last first element recorded in the first array, and calculating the proportion of the corresponding times in each hour recorded in the first array to the sum;
when the proportion corresponding to a certain hour is larger than a preset first numerical value, determining the water use habit of the hour as a water use peak period;
when the proportion corresponding to a certain hour is smaller than a preset second numerical value, determining the water use habit of the hour as a water use valley period;
and when the proportion corresponding to a certain hour is less than or equal to a preset first numerical value and greater than or equal to a preset second numerical value, determining the water use habit of the hour as a water use valley period.
Preferably, after determining the water usage habit of the user every hour, the method further comprises the following steps:
and converting the water consumption habits of the user in each hour into preset values according to a preset conversion relation, and storing the preset values corresponding to each hour into a pre-established second array, wherein the second array comprises 24 second elements, and each second element is used for recording the preset values corresponding to each hour.
In a second aspect, an embodiment of the present invention provides a water usage habit analyzing apparatus, including a first array establishing module and a habit analyzing module, where the habit analyzing module includes a water temperature change rate calculating unit, a determining unit, a frequency increasing unit, and a water usage habit determining unit;
the first array establishing module is used for establishing a first array, and the first array is used for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period;
the habit analysis module is used for executing the habit analysis steps, and specifically comprises the following steps:
the water temperature change rate calculation unit is used for periodically calculating a first water temperature change rate of a hot water tank of the heat pump water heater in the current period, and acquiring a natural water temperature change rate with the calculation time being closest to the current period, wherein the natural water temperature change rate is calculated once every N periods;
the judging unit is used for judging whether the first water temperature change rate meets a change rate standard or not according to the natural change rate of the water temperature;
the frequency increasing unit is used for increasing the frequency once within a preset time period corresponding to the first array according to the time of the current period when the first water temperature change rate meets the change rate standard;
the water usage habit determining unit is used for determining the water usage habit of the user according to the first array, determining the corresponding heating strategy according to the water usage habit, and re-executing the habit analysis step.
In a third aspect, an embodiment of the present invention provides a terminal device, where the terminal device includes a processor and a memory;
the memory is used for storing a computer program and transmitting the computer program to the processor;
the processor is configured to execute a water usage habit analysis method according to the instructions in the computer program.
In a fourth aspect, embodiments of the present invention provide a storage medium storing computer-executable instructions for executing a water usage habit analysis method according to the first aspect by a computer processor.
In the foregoing, an embodiment of the present invention provides a water usage habit analysis method, an apparatus, a terminal device, and a storage medium, where the method includes the following steps: establishing a first array, wherein the first array is used for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period; executing a habit analysis step, specifically: periodically calculating a first water temperature change rate of a hot water tank of the heat pump water heater in the current period, and acquiring a natural water temperature change rate with the calculation time being closest to the current period, wherein the natural water temperature change rate is calculated once every N periods; judging whether the first water temperature change rate meets the change rate standard or not according to the natural change rate of the water temperature; if so, increasing the times within a preset time period corresponding to the first array according to the time of the current period; and determining the water using habits of the user according to the first array, determining the corresponding heating strategies according to the water using habits, and re-executing the habit analysis step.
The embodiment of the invention establishes a first array for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period in advance, then calculates the first water temperature change rate of a hot water tank of the heat pump water heater in the current period, acquires the natural change rate of the water temperature with the calculation time being closest to the current period, and judges whether the first water temperature change rate and the natural change rate of the water temperature meet the change rate standard, if so, the times are increased once in the preset time period corresponding to the first array, finally, the water using habit of the user is determined according to the first array, and the corresponding heating strategy is determined according to the water using habit, so that the water using habit of the user can be determined without additionally increasing a sensor, and the habit analyzing step is continuously executed, so that the service time of the heat pump water heater is longer, under the condition that the recorded times in the first array are more and more, the determined water use habit of the user is more accurate, and therefore intelligent analysis of the water use habit of the user is achieved.
Drawings
Fig. 1 is a flowchart of a water usage habit analysis method according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a first array according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a method for calculating a natural rate of change of water temperature according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a water usage habit analyzing apparatus according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
The following description and the annexed drawings set forth in detail certain illustrative embodiments of the application so as to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the embodiments of the present application includes the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
Example one
First, it should be noted that when the heat pump water heater is in the heating mode, there are generally the following three application scenarios:
(1) when the user does not use water (constant temperature period/water use valley period), the water temperature is slowly reduced because the heat of the hot water tank is naturally dissipated, and when the water temperature is reduced to be below R1-R4, the heat pump needs to start heating until the water temperature is heated to be above R1+ R5. At this time, since the hot water tank does not receive makeup cold water (tap water), the heating time is shorter than that when the user is using water.
(2) When a user uses a small amount of water (using a level period), the water temperature can be rapidly reduced due to the small amount of water, but the water temperature can be still above R1-R4 after the user stops using the water due to the small amount of water, the heating of the heat pump can not be started immediately, the time of the constant temperature period of the heat pump can be shortened, and the constant temperature heating can be triggered more rapidly.
(3) When a user uses a large amount of water (water consumption peak period), the water temperature of the hot water tank is rapidly reduced, and when the water temperature is reduced to be below R1-R4, the heat pump needs to start heating until the water temperature is heated to be above R1+ R5. At this time, since the hot water tank is continuously replenished with cold water (tap water), the heating time of the heat pump is longer than the time when the user does not use water.
Wherein, T1 is the water tank temperature, the actual water temperature in the hot water tank;
r1, target temperature, water temperature set by a user, and water in the water tank is heated to the water temperature by the heat pump;
r4, constant temperature startup return difference, when T1 is more than R1-R4, the heat pump needs to be started to heat;
r5 constant temperature stop return difference, when T1 is more than R1+ R5, the heat pump needs to stop heating.
As shown in fig. 1, fig. 1 is a flowchart of a water usage habit analyzing method according to an embodiment of the present invention. The water usage habit analyzing method provided by the embodiment of the invention can be executed by water usage habit analyzing equipment, the water usage habit analyzing equipment can be realized in a software and/or hardware mode, and the water usage habit analyzing equipment can be composed of two or more physical entities or one physical entity. For example, the water usage habit analyzing equipment can be a computer, an upper computer, a flat panel and the like. The method comprises the following steps:
In this embodiment, first, a first array is required to be established in advance, and the number of times that the change rate of the water temperature meets the change rate standard in each preset time period is recorded in the first array. Illustratively, in one embodiment, the preset time period includes [0:00-6:00], (6:00-12:00], (12:00-18:00], (18:00-24:00], and the number of times that the change rate of the water temperature in each time period meets the change rate standard is recorded in the array, for example, the number of times of [0:00-6:00] is 10, the number of times of [ 6:00-12:00] is 20, and the like.
On the basis of the above embodiment, the first array is a 16-bit unsigned integer array, and the first array includes 25 first elements, where the first 24 first elements are respectively used to record the times that the change rate of the water temperature meets the change rate criterion in each hour, and the last first element is used to record the sum of the times recorded by the first 24 first elements in the first array.
In one embodiment, a 16-bit unsigned integer array is established as a first array, and the first array includes 25 first elements, where the first 24 first elements are respectively used to record the times that the change rate of the water temperature meets the change rate criterion in each hour, and the last first element is used to record the sum of the times recorded by the first 24 first elements in the first array. Illustratively, in one embodiment, a first array AI [ ] of 16-bit unsigned shapes is established, with 25 first elements AI [ i ] in the first array, 0 ≦ i ≦ 24. The first elements AI [0] to first elements AI [23] correspond to a time period formed by 0 to 23 points in a day, namely AI [0] represents 0 to 1 point, AI [1] represents 1 to 2 points … … AI [23] represents 23 to 24 points, the numerical value recorded in each first element AI [ i ] is the number of times that the change rate of the water temperature meets the change rate standard in the corresponding hour, the first elements AI [24] are used for recording the sum of the number of times recorded by the first elements AI [0] to first elements AI [23], and the structure of the first array is shown in FIG. 2.
and 1021, periodically calculating a first water temperature change rate of a hot water tank of the heat pump water heater in the current period, and acquiring a natural water temperature change rate with the calculation time being closest to the current period, wherein the natural water temperature change rate is calculated once every N periods.
When the habit analyzing step is executed, first, a first water temperature change rate of a hot water tank of the heat pump water heater in the current period is periodically calculated, and the first water temperature change rate reflects the speed of water temperature change of the hot water tank of the heat pump water heater in the current period. Illustratively, at every t1(10min) as a period, and in each period, acquiring a tank temperature change value delta T of a hot water tank of the heat pump water heater1According to the variation value Delta T of the temperature of the water tank1The first water temperature change rate V in each period can be calculatedtIn which V ist＝△T1/t1。
And then, further acquiring a water temperature natural change rate with the calculation time closest to the current period in the current period, wherein the water temperature natural change rate reflects the speed of water temperature natural change in a hot water tank of the heat pump water heater, and it needs to be noted that the water temperature natural change rate is calculated once every N periods, namely the water temperature natural change rate is updated once every N periods. It can be understood that N is a positive integer, and the value of N and the time length of each period can be set according to the actual needs of the user, and the value of N and the time length of each period are not specifically limited in this embodiment. Illustratively, in one embodiment, N may be set to 3 and the time duration of each cycle may be set to 20 minutes.
In one embodiment, in order to avoid the inaccuracy of the calculated natural change rate of the water temperature caused by the water usage of the user in a plurality of consecutive periods, the step S102 is executed after the preset N1 natural change rates of the water temperature are calculated.
On the basis of the above embodiment, the specific process of calculating the natural change rate of the water temperature every N cycles in step 1021 is executed by steps 10211 to 10216, as shown in fig. 3, and the specific process is as follows:
and step 10211, periodically calculating a second water temperature change rate of a hot water tank of the heat pump water heater in each period.
First, a second water temperature change rate of a hot water tank of the heat pump water heater in each period is calculated periodically. The specific process of calculating the first water temperature change rate in step 1021 can be referred to, and is not repeated in this step.
And step 10212, after each N periods, calculating the average change rate and the standard deviation of the change rate of the water temperature in the N periods according to the second water temperature change rate in each period of the N periods.
And after every N periods, calculating the average change rate and the standard deviation of the change rate of the water temperature in the N periods according to the second water temperature change rate of the N periods. Illustratively, in one embodiment, after accumulating N cycles, V is obtainedt1～VtNN second water temperature change rates according to which the N second water temperatures changeChanging the rate, calculating the average value of the N second water temperature change rates to obtain the average water temperature change rate VAre all NAnd calculating the standard deviation of the N second water temperature change rates to obtain the standard deviation sigma of the change rateVN。
And step 10213, judging whether the standard deviation of the change rate is less than or equal to a preset standard deviation threshold value.
Then, the standard deviation sigma of the change rate is further judgedVNWhether or not less than or equal to a preset standard deviation threshold value sigmaV threshold。
It should be further noted that the standard deviation threshold σV thresholdThe method is used for judging whether the second water temperature change rate has large mutation or not in N periods, because the second water temperature change rate has mutation which is usually caused by water consumption of users, if the users have water in N periods, the temperature reduction process can be accelerated, and the average change rate V of the water temperature in N periods is causedAre all NThe rate of natural temperature drop cannot be represented more accurately, so that only the standard deviation sigma of the rate of changeVNLess than or equal to a preset standard deviation threshold value sigmaV thresholdIt means that the water temperature is naturally dropping for N cycles.
And step 10214, if yes, judging whether the historical water temperature natural change rate obtained by the last calculation exists.
If standard deviation of change σVNLess than or equal to a preset standard deviation threshold value sigmaV thresholdJudging whether the historical water temperature natural change rate obtained by the last calculation exists or not; if standard deviation of change σVNGreater than a predetermined standard deviation threshold σV thresholdThen the natural rate of change of water temperature in this N cycles is not calculated.
And step 10215, if so, dividing the sum of the historical water temperature natural change rate and the average water temperature change rate by 2 to obtain the natural water temperature change rate.
If the historical water temperature natural change rate obtained by the last calculation exists, dividing the sum of the historical water temperature natural change rate and the average water temperature change rate by 2 to obtain the natural water temperature change rate, wherein the formula is as follows:
Vfrom＝(VSelf history+VAre all N)/2
Wherein, VFromIs the natural rate of change of water temperature, VSelf historyIs the natural change rate of the historical water temperature.
And step 10216, if the water temperature does not exist, taking the average change rate of the water temperature as the natural change rate of the water temperature.
If not, it indicates that N cycles have not been reached, then let VFrom＝VAre all N。
In the embodiment of the invention, the steps 10211 to 10216 are repeated once every N cycles, and V is more than V when the time of the user is longerFromThe closer to the true natural rate of water temperature drop. Understandably, V is the temperature of the water as it decreasesFromIs negative, V when the water temperature risesFromIs a positive number.
And 1022, judging whether the first water temperature change rate meets the change rate standard or not according to the natural change rate of the water temperature.
Obtaining the natural change rate V of the water temperatureFromThen according to the natural change rate V of water temperatureFromFurther judging the first water temperature change rate VtWhether the rate of change criterion is met.
In one embodiment, the specific process of determining whether the first water temperature change rate meets the change rate criterion according to the natural water temperature change rate in step 1022 is executed by steps 10221 to 10222, specifically:
and step 10221, multiplying the natural change rate of the water temperature by a preset multiple to obtain a first natural change rate of the water temperature. It is understood that the preset multiple may be set according to actual needs, and specific values of the preset multiple are not limited in this embodiment. For example, in one embodiment, the first natural rate of change of the water temperature is calculated as: vFirst from＝X*VFromWherein X is a preset multiple.
Step 10222, determine whether the absolute value of the rate of change of the first water temperature is greater than the absolute value of the rate of natural change of the first water temperature.
After the first water temperature natural change rate is obtained through calculation, the first water temperature change rate V is further judgedtIs less than the first water temperature natural variation rate VFirst fromAbsolute value of (a).
And step 1023, if so, increasing the times within a preset time period corresponding to the first array according to the time of the current period.
It should be further noted that, although the hot water tank of the heat pump water heater has good heat preservation measures, the temperature drop rate of the hot water tank at the low ring temperature is faster than that at the high ring temperature, but the drop rate is certainly much smaller than that of the water used by the user, and the two situations can be distinguished by setting the preset multiplying factor X.
If so, the absolute value of the first water temperature natural change rate in the current period is more than X times of the absolute value of the water temperature natural change rate, the judgment standard of the water temperature reduction rate in the peak water use period is reached, the current time of the current period is determined, the corresponding preset time period is determined in the first array according to the current time, and the frequency is increased by 1 in the corresponding time period. For example, in one embodiment, for example, at 18:25 currently, the first element AI [18], which records the number of times that the change rate of the water temperature satisfies the change rate criterion at 18-19 points, is found in the first array, and the value of AI [18] +1(AI [18] ═ AI [18] +1) is found. If not, the habit analyzing step is executed again.
And 1024, determining the water using habits of the user according to the first array, determining the corresponding heating strategies according to the water using habits, and re-executing the habit analysis step.
And then, according to the times that the change rate of the water temperature in each preset time period recorded in the first array meets the change rate standard, the times of water consumption of the user in each preset time period can be determined, so that the water consumption peak period, the water consumption level period and the water consumption valley period of the user are determined, the water consumption habits of the user are further determined, and the corresponding heating strategy is designated according to the water consumption habits of the user. For example, in the previous hour of the water consumption peak period and the water consumption peak period, the water temperature of the water tank is kept warm according to the maximum water temperature Rmax, hot water is prepared in advance, the heat pump is enabled to exert the maximum capacity to produce hot water, and the hot water supply is guaranteed; in the horizontal period, the water temperature of the water tank is kept at the set water temperature R01 of a user, so that hot water supply is guaranteed; in the valley period of water consumption, according to the valley heat preservation water temperature Rlow and the water temperature R01 set by a user, when the temperature of R01-Rlow is more than or equal to 10 ℃, heat preservation is carried out according to the temperature of R01-5 ℃, otherwise, heat preservation is carried out according to the temperature Rlow.
In one embodiment, in order to avoid that the determined water usage habit of the user is inaccurate due to too few times recorded in the first array, step S1024 is executed after N2 times are recorded in the first array.
And finally, re-executing the habit analyzing step, wherein the times recorded in the first array are more and more along with the longer time for the user to use the heat pump water heater, so that the water using habit of the user can be more accurately determined according to the first array.
In one embodiment, the specific process of determining the water usage habit of the user according to the first array in step 1024 is performed by steps 10241-10244, specifically:
step 10241, obtain the total recorded by the last first element in the first array, and calculate the ratio of the corresponding times in each hour recorded in the first array to the total.
If the number of times is increased once in the preset time period corresponding to the first array in the current period, the recorded number of times of each first element pair is added to obtain the sum of the number of times, and the value of the sum is assigned to the last first element in the first array, that is, AI [24] ═ AI [0] + AI [1] + … … AI [23 ].
And then, further calculating the proportion of the corresponding times of each hour recorded by each element to the sum. Illustratively, for a first element AI [0] recording the number of times that the change rate of the water temperature meets the change rate standard within 0-1 point, the numerical value of the AI [0] is divided by the numerical value of the AI [24] to obtain a proportion, and the proportion is accurate to 1%.
Step 10242, when the proportion corresponding to a certain hour is larger than the preset first value, determining the water usage habit of the hour as the water usage peak period;
step 10243, when the proportion corresponding to a certain hour is smaller than a preset second value, determining the water usage habit of the hour as the water usage valley period;
step 10244, when the ratio corresponding to an hour is less than or equal to a first preset value and greater than or equal to a second preset value, determining the water usage habit of the hour as a water usage valley period.
And then, according to the proportion of the number of times corresponding to each hour recorded by each first element to the sum, determining the water using habit of the user in each hour. For example, in one embodiment, the value a is set to a first value, the value B is set to a second value, when the ratio corresponding to each hour is > a, the water usage habit of the hour is recorded as the peak water usage period, when the ratio corresponding to each hour is < B, the water usage habit of the hour is recorded as the valley water usage period, and in other cases, the water usage habit is recorded as the level period, it can be understood that the value A, B can be set according to actual needs.
In one embodiment, after determining the water usage habit of the user every hour, the method further includes step 1025, specifically:
and 1025, converting the water usage habits of the user in each hour into preset values according to the preset conversion relationship, and storing the preset values corresponding to each hour into a pre-established second array, wherein the second array comprises 24 second elements, and each second element is used for recording the preset values corresponding to each hour.
In one embodiment, a conversion relationship between the water usage habit and the numerical value may be preset, and then the water usage habit in each hour may be converted into a preset numerical value according to the conversion relationship, and the preset numerical value corresponding to each hour is stored in a second array which is established in advance. The second array comprises 24 second elements, and each second element is used for recording a preset numerical value corresponding to each hour. Illustratively, in one embodiment, the conversion relationship is pre-established, converting peak water usage periods to a value of 2, level usage periods to a value of 1, and water usage periods to a value of 0. Then, an unsigned character type array is established as a second array AIH [ ], and 24 second elements AIH [ j ] exist in the second array AIH [ ], wherein j is more than or equal to 0 and less than or equal to 23. Each second element AIH [ j ] is used for recording a preset value corresponding to each hour, namely AIH [0] records a preset value corresponding to 0-1 point, AIH [1] records a preset value corresponding to 1-2 points … … AIH [23] records a preset value corresponding to 23-24 points. When a certain hour is judged to be a water consumption peak period, the value corresponding to the second element in the second array AIH is set to be 2, when a certain hour is judged to be a water consumption level period, the value corresponding to the second element in the second array AIH is set to be 1, and when a certain hour is judged to be a water consumption valley period, the value corresponding to the second element in the second array AIH is set to be 0. For example, if the water usage habit corresponding to the 0-1 point is the water usage period, the value of AIH 0 is set to 1 in the second array AIH [ ]. Because the element serial numbers of the second array are in one-to-one correspondence with the 24-hour system, when the water consumption condition in a certain time period needs to be known, only the value of the corresponding second element needs to be extracted.
In one embodiment, after the first water temperature change rate meets the change rate criterion, before increasing the number of times within a preset time period corresponding to the first array according to the time of the current cycle, the method further includes the following steps:
and judging whether the first array reaches a preset memory clearing condition or not.
It is understood that the memory empty condition can be set according to actual needs, for example, in one embodiment, the memory empty condition is set to determine whether the first array value ≧ 65500 holds.
If so, reducing the times recorded in the first array, and if not, continuing to execute the step of increasing the times once within the preset time period corresponding to the first array according to the time of the current period.
And if the first array reaches the preset memory emptying condition, reducing the times recorded in the first array. Illustratively, in one embodiment, if the first array AI [ ] is equal to or greater than 65500, the values of the first elements AI [0] to AI [23] in the first array AI [ ] are all divided by 100 and then re-assigned (e.g., AI [0] = AI [0 ]/100). It should be further noted that the reason for reducing the values in the first array by a factor of 100 is that the maximum value that can be recorded by the 16-bit unsigned integer array is 65536, and the memory needs to be periodically cleared, which may affect the accuracy of determining the water usage habit of the user in a short period of time, but does not affect the long-term accuracy, and it can be understood that if the values recorded in the first array need to be more accurate and are less affected during the clearing of the memory, the data can be recorded by using the unsigned 32-bit integer array (or even a larger array), and the distortion rate of the data can be smaller. It is understood that the values are reduced by a factor of 100 while only integers remain.
The embodiment of the invention establishes a first array for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period in advance, then calculates the first water temperature change rate of a hot water tank of the heat pump water heater in the current period, acquires the natural change rate of the water temperature with the calculation time being closest to the current period, and judges whether the first water temperature change rate and the natural change rate of the water temperature meet the change rate standard, if so, the times are increased once in the preset time period corresponding to the first array, finally, the water using habit of the user is determined according to the first array, and the corresponding heating strategy is determined according to the water using habit, so that the water using habit of the user can be determined without additionally increasing a sensor, and the habit analyzing step is continuously executed, so that the service time of the heat pump water heater is longer, under the condition that the recorded times in the first array are more and more, the determined water use habit of the user is more accurate, and therefore intelligent analysis of the water use habit of the user is achieved.
Example two
As shown in fig. 4, fig. 4 is a schematic structural diagram of a water usage habit analyzer according to an embodiment of the present invention, which includes a first array creating module 201 and a habit analyzing module 202, wherein the habit analyzing module includes a water temperature change rate calculating unit 2021, a determining unit 2022, a frequency increasing unit 2023, and a water usage habit determining unit 2024;
the first array establishing module 201 is used for establishing a first array, and the first array is used for recording the times that the water temperature change rate meets the change rate standard in each preset time period;
the habit analyzing module 202 is configured to perform a habit analyzing step, specifically:
the water temperature change rate calculation unit 2021 is configured to periodically calculate a first water temperature change rate of a hot water tank of the heat pump water heater in a current period, and obtain a natural water temperature change rate at which a calculation time is closest to the current period, where the natural water temperature change rate is calculated once every N periods;
the judging unit 2022 is configured to judge whether the first water temperature change rate meets a change rate standard according to the natural change rate of the water temperature;
the frequency increasing unit 2023 is configured to increase the frequency once within a preset time period corresponding to the first array according to the time of the current cycle when the first water temperature change rate meets the change rate standard;
the water usage habit determining unit 2024 is configured to determine the water usage habit of the user according to the first array, determine a corresponding heating policy according to the water usage habit, and re-execute the habit analysis step.
On the basis of the above embodiment, the water temperature change rate calculation unit 2021 is specifically configured to calculate the natural change rate of the water temperature every time N cycles by:
the system is used for periodically calculating a second water temperature change rate of a hot water tank of the heat pump water heater in each period;
after every N periods, calculating the average change rate of the water temperature and the standard deviation of the change rate in the N periods according to the second water temperature change rate in each period of the N periods;
judging whether the standard deviation of the change rate is less than or equal to a preset standard deviation threshold value or not;
if yes, judging whether the historical water temperature natural change rate obtained by the last calculation exists;
if so, dividing the sum of the historical water temperature natural change rate and the average water temperature change rate by 2 to obtain the natural water temperature change rate;
if the water temperature does not exist, the average change rate of the water temperature is used as the natural change rate of the water temperature.
On the basis of the foregoing embodiment, the determining unit 2022 is configured to determine whether the first water temperature change rate meets the change rate criterion according to the natural water temperature change rate specifically as follows:
the water temperature control system is used for multiplying the natural change rate of the water temperature by a preset multiple to obtain a first natural change rate of the water temperature;
and judging whether the absolute value of the change rate of the first water temperature is smaller than the absolute value of the natural change rate of the first water temperature.
On the basis of the above embodiment, the first array is a 16-bit unsigned integer array, and the first array includes 25 first elements, where the first 24 first elements are respectively used to record the times that the change rate of the water temperature meets the change rate criterion in each hour, and the last first element is used to record the sum of the times recorded by the first 24 first elements in the first array.
On the basis of the foregoing embodiment, the habit analyzing module 202 further includes an array clearing unit, where the array clearing unit is configured to determine whether the first array reaches a preset memory clearing condition before increasing one time within a preset time period corresponding to the first array according to the time of the current cycle after the first water temperature change rate meets the change rate standard; if so, reducing the times recorded in the first array, and if not, continuing to execute the step of increasing the times once within the preset time period corresponding to the first array according to the time of the current period.
On the basis of the above embodiment, the water usage habit determining unit 2024 is configured to determine the water usage habit of the user according to the first array specifically as follows:
the system is used for acquiring the sum of the last first element recorded in the first array and calculating the proportion of the corresponding times in each hour recorded in the first array to the sum;
when the proportion corresponding to a certain hour is larger than a preset first numerical value, determining the water use habit of the hour as a water use peak period;
when the proportion corresponding to a certain hour is smaller than a preset second numerical value, determining the water use habit of the hour as a water use valley period;
and when the proportion corresponding to a certain hour is less than or equal to a preset first numerical value and greater than or equal to a preset second numerical value, determining the water use habit of the hour as a water use valley period.
On the basis of the foregoing embodiment, the habit analysis module 202 further includes a conversion unit, where the conversion unit is configured to, after determining the water usage habit of the user in each hour, convert the water usage habit of the user in each hour into a preset numerical value according to a preset conversion relationship, and store the preset numerical value corresponding to each hour into a second array established in advance, where the second array includes 24 second elements, and each second element is used to record the preset numerical value corresponding to each hour.
EXAMPLE III
The present embodiment further provides a terminal device, as shown in fig. 5, a terminal device 30, where the terminal device includes a processor 300 and a memory 301;
the memory 301 is used for storing a computer program 302 and transmitting the computer program 302 to the processor;
the processor 300 is configured to execute the steps of one of the above embodiments of the water usage habit analysis method according to the instructions in the computer program 302.
Illustratively, the computer program 302 may be partitioned into one or more modules/units that are stored in the memory 301 and executed by the processor 300 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 302 in the terminal device 30.
The terminal device 30 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device 30 may include, but is not limited to, a processor 300 and a memory 301. Those skilled in the art will appreciate that fig. 5 is merely an example of the terminal device 30, and does not constitute a limitation of the terminal device 30, and may include more or less components than those shown, or combine some of the components, or different components, for example, the terminal device 30 may further include an input-output device, a network access device, a bus, etc.
The Processor 300 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable gate array (FPGA) or other Programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 301 may be an internal storage unit of the terminal device 30, such as a hard disk or a memory of the terminal device 30. The memory 301 may also be an external storage terminal device of the terminal device 30, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 30. Further, the memory 301 may also include both an internal storage unit and an external storage device of the terminal device 30. The memory 301 is used for storing the computer program and other programs and data required by the terminal device 30. The memory 301 may also be used to temporarily store data that has been output or is to be output.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. 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.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. 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 and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, an optical disk, or other various media capable of storing computer programs.
Example four
Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, perform a method of water usage habit analysis, the method comprising the steps of:
establishing a first array, wherein the first array is used for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period;
executing a habit analysis step, specifically:
periodically calculating a first water temperature change rate of a hot water tank of the heat pump water heater in the current period, and acquiring a natural water temperature change rate with the calculation time being closest to the current period, wherein the natural water temperature change rate is calculated once every N periods;
judging whether the first water temperature change rate meets the change rate standard or not according to the natural change rate of the water temperature;
if so, increasing the times within a preset time period corresponding to the first array according to the time of the current period;
and determining the water using habits of the user according to the first array, determining the corresponding heating strategies according to the water using habits, and re-executing the habit analysis step.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. Those skilled in the art will appreciate that the embodiments of the present invention are not limited to the specific embodiments described herein, and that various obvious changes, adaptations, and substitutions are possible, without departing from the scope of the embodiments of the present invention. Therefore, although the embodiments of the present invention have been described in more detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments may be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A water use habit analysis method is characterized by comprising the following steps:
establishing a first array, wherein the first array is used for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period;
executing a habit analysis step, specifically:
periodically calculating a first water temperature change rate of a hot water tank of the heat pump water heater in a current period, and acquiring a natural water temperature change rate with the calculation time being closest to the current period, wherein the natural water temperature change rate is calculated once every N periods;
judging whether the first water temperature change rate meets a change rate standard or not according to the natural change rate of the water temperature;
if so, increasing the times once in a preset time period corresponding to the first array according to the time of the current period;
and determining the water using habits of the user according to the first array, determining the corresponding heating strategies according to the water using habits, and re-executing the habit analysis step.
2. The water usage habit analyzing method according to claim 1, wherein the specific process of calculating the natural change rate of the water temperature every N cycles is as follows:
periodically calculating a second water temperature change rate of a hot water tank of the heat pump water heater in each period;
after every N periods, calculating the average change rate of the water temperature and the standard deviation of the change rate in the N periods according to the second water temperature change rate in each period of the N periods;
judging whether the standard deviation of the change rate is less than or equal to a preset standard deviation threshold value or not;
if yes, judging whether the historical water temperature natural change rate obtained by the last calculation exists;
if so, dividing the sum of the historical water temperature natural change rate and the average water temperature change rate by 2 to obtain a natural water temperature change rate;
and if the water temperature does not exist, taking the average change rate of the water temperature as the natural change rate of the water temperature.
3. The method for analyzing water usage habits according to claim 1, wherein the specific process of determining whether the first water temperature change rate meets a change rate criterion according to the natural change rate of the water temperature is as follows:
multiplying the natural change rate of the water temperature by a preset multiple to obtain a first natural change rate of the water temperature;
and judging whether the absolute value of the first water temperature change rate is larger than the absolute value of the first natural water temperature change rate.
4. The method as claimed in claim 1, wherein the first array is a 16-bit unsigned integer array, the first array includes 25 first elements, the first 24 first elements are respectively used for recording the times of the water temperature change rate meeting the change rate criterion in each hour, and the last first element is used for recording the sum of the times of the first 24 first elements in the first array.
5. The water usage habit analysis method according to claim 4, wherein after the first water temperature change rate meets the change rate standard, according to the time of the current cycle, before increasing the number of times once within the preset time period corresponding to the first array, the method further comprises the following steps:
judging whether the first array reaches a preset memory clearing condition or not;
if so, reducing the times recorded in the first array, and if not, continuing to execute the step of increasing the times once within a preset time period corresponding to the first array according to the time of the current period.
6. The method for analyzing water usage habits according to claim 4, wherein the specific process of determining the water usage habits of the user according to the first array is as follows:
acquiring the sum of the last first element recorded in the first array, and calculating the proportion of the corresponding times in each hour recorded in the first array to the sum;
when the proportion corresponding to a certain hour is larger than a preset first numerical value, determining the water use habit of the hour as a water use peak period;
when the proportion corresponding to a certain hour is smaller than a preset second numerical value, determining the water use habit of the hour as a water use valley period;
and when the proportion corresponding to a certain hour is less than or equal to a preset first numerical value and greater than or equal to a preset second numerical value, determining the water use habit of the hour as a water use valley period.
7. The method for analyzing water usage habits according to claim 6, further comprising the following steps after determining the water usage habits of the user in each hour:
and converting the water consumption habits of the user in each hour into preset values according to a preset conversion relation, and storing the preset values corresponding to each hour into a pre-established second array, wherein the second array comprises 24 second elements, and each second element is used for recording the preset values corresponding to each hour.
8. A water consumption habit analyzing device is characterized by comprising a first array establishing module and a habit analyzing module, wherein the habit analyzing module comprises a water temperature change rate calculating unit, a judging unit, a frequency increasing unit and a water consumption habit determining unit;
the first array establishing module is used for establishing a first array, and the first array is used for recording the times that the change rate of the water temperature meets the change rate standard in each preset time period;
the habit analysis module is used for executing the habit analysis steps, and specifically comprises the following steps:
the water temperature change rate calculation unit is used for periodically calculating a first water temperature change rate of a hot water tank of the heat pump water heater in the current period, and acquiring a natural water temperature change rate with the calculation time being closest to the current period, wherein the natural water temperature change rate is calculated once every N periods;
the judging unit is used for judging whether the first water temperature change rate meets a change rate standard or not according to the natural change rate of the water temperature;
the frequency increasing unit is used for increasing the frequency once within a preset time period corresponding to the first array according to the time of the current period when the first water temperature change rate meets the change rate standard;
the water usage habit determining unit is used for determining the water usage habit of the user according to the first array, determining the corresponding heating strategy according to the water usage habit, and re-executing the habit analysis step.
9. A terminal device, characterized in that the terminal device comprises a processor and a memory;
the memory is used for storing a computer program and transmitting the computer program to the processor;
the processor is used for executing a water usage habit analysis method according to any one of claims 1-7 according to instructions in the computer program.
10. A storage medium storing computer-executable instructions for performing a water usage habit analysis method according to any one of claims 1-7 when executed by a computer processor.
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