CN114294824B - Water habit analysis method and device, terminal equipment and storage medium - Google Patents
Water habit analysis method and device, terminal equipment and storage medium Download PDFInfo
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Abstract
The invention provides a water 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 a current period is calculated, a water temperature natural change rate with the calculated time closest to the current period is obtained, whether the first water temperature change rate and the water temperature natural change rate meet change rate standards is judged, if so, the number of times is increased in a preset time period corresponding to the first array, finally, the water habit of a user is determined according to the first array, a heating strategy is formulated, and the determined water habit of the user is more accurate under the condition that the recorded number of times in the first array is more and more.
Description
Technical Field
The embodiment of the application relates to the field of water heaters, in particular to a water habit analysis method, a water habit analysis device, terminal equipment and a storage medium.
Background
At present, the existing air-conditioning hot water two-unit supply air-source heat pump on the market generally has a hot water tank for storing water, the water inlet of the hot water tank is tap water generally, the hot water tank is not softened and cannot be directly led to a heat exchange component of a machine for heating (such as a sleeve and a plate for exchanging), otherwise, the heat exchange component is easy to scale, the heat exchange effect is poor, the energy consumption is high, and even the heat exchange component cannot be normally used. Therefore, two-in-one supply generally needs to design a closed pipeline, soft water (difficult to scale) is injected into the pipeline, hot water (soft water) heated by a heat pump is led to an inner coil pipe of a hot water tank from the pipeline, and hot water in the coil pipe exchanges heat with tap water (hard water) in the hot water tank, so that on one hand, the heat exchanger of the machine can be prevented from scaling when heating, on the other hand, the hot water can be led to the hot water tank for heating water through the switching of a waterway, or the hot water can be led to a ground heating pipe for heating, the complex pipeline and system are not required to be designed on the machine, and the function of two-in-one supply can be realized only by adopting the scheme of waterway switching on the waterway. Another air energy water heater is to directly lead the fluorine pipe into the hot water tank, and heat exchange is carried out between the refrigerant and the water to realize the purpose of heating the 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 is, the lower the energy efficiency in the heating process of the air energy water heater is under the condition of high water temperature. According to the Fourier law of heat transfer, the higher the temperature of the hot water tank is, the larger the temperature difference from the ambient temperature is, the higher 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 subjected to heat preservation become, and the energy consumption becomes large, so that how to improve the energy efficiency of the heat pump water heater and reduce the energy consumption becomes the technical problem to be solved urgently at present.
In the prior art, a corresponding heating strategy is generally formulated by analyzing the water consumption habit of a user so as to improve the heating efficiency of the heat pump water heater and reduce the energy consumption. However, in the current heat pump water heater, if the water consumption habit (water consumption peak and water consumption valley) of the user is to be analyzed, a flowmeter or a sensor such as a water meter is often added in the heat pump water heater to judge the water consumption. For the air-conditioning hot water two-in-one heat pump, because the closed soft water pipeline and the coil pipe exchange heat, the heat pump water outlet pipeline is not directly connected to the water end, so that a flow sensor or a water meter is added on the water outlet pipeline of the heat pump, and the water consumption of the hot water side cannot be measured, so that the flow meter can only be arranged on the water side or the water supplementing side of the hot water tank, but the water side and the water supplementing side pipeline often do not belong to standard parts of heat pump products, a user is required to purchase and install the heat pump by himself, the installation cost of the user is increased, and the installation difficulty is increased at the same time, so that the scheme is difficult to be accepted by consumers. For other water heater products (such as air energy water heater, electric heater and even boiler heating) with water storage hot water tank, a flowmeter or a water meter must be added to judge water habit. In addition, in the prior art, after the water habit of the user is determined, the water habit of the user is not generally modified again, the water habit of the user cannot be intelligently modified according to the water condition of the user, and if the water habit is changed by the user, the originally determined water habit cannot be close to the water habit of the user in real life, so that a heating strategy suitable for the user cannot be determined.
In summary, in the prior art, the water usage habit of the user cannot be intelligently modified according to the water usage situation 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 habit analysis method, a device, terminal equipment and a storage medium, which solve the technical problem that the water habit of a user cannot be intelligently modified according to the water use condition of the user in the prior art, so that a heating strategy suitable for the user cannot be determined.
In a first aspect, an embodiment of the present invention provides a water habit analysis method, including the steps of:
establishing a first array, wherein 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 execution habit analysis step specifically comprises the following steps:
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 water temperature natural change rate with the calculation time closest to the current period, wherein the water temperature natural change rate is calculated once every N periods;
judging whether the first water temperature change rate meets a change rate standard according to the water temperature natural change rate;
If yes, 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 habit of the user according to the first array, determining a corresponding heating strategy according to the water habit, and re-executing the habit analysis step.
Preferably, the specific process of calculating the natural change rate of the water temperature once every N periods 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 each N periods, calculating the average change rate and standard deviation of the change rate of the water temperature in the N periods according to the second water temperature change rate of each period in the N periods;
judging whether the standard deviation of the change rate is smaller than or equal to a preset standard deviation threshold value;
if so, judging whether the historical water temperature natural change rate obtained by the last calculation exists or not;
if the water temperature exists, dividing the sum of the historical water temperature natural change rate and the water temperature average change rate by 2 to obtain the water temperature natural change rate;
and if not, 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 water temperature change rate by a preset multiple to obtain a first natural water temperature change rate;
and judging whether the absolute value of the first water temperature change rate is larger than the absolute value of the first water temperature natural change rate.
Preferably, the first array is a 16-bit unsigned integer array, and the first array includes 25 first elements, wherein the first 24 first elements are respectively used for recording the times that the water temperature change rate meets the change rate standard in each hour, and the last first element is used for recording 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 the number of times is increased once in the preset time period corresponding to the first array according to the time of the current period, the method further comprises the following steps:
judging whether the first array reaches a preset memory emptying condition or not;
if yes, reducing the times recorded in the first array, if not, continuing to execute the step of increasing the times once in 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 habit of the user according to the first array is as follows:
Acquiring the sum recorded by the last first element 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 corresponding proportion of an hour is larger than a preset first value, determining the water consumption habit of the hour as a water consumption peak period;
when the corresponding proportion of an hour is smaller than a preset second value, determining the water consumption habit of the hour as a water consumption valley period;
and when the proportion corresponding to an hour is smaller than or equal to a preset first value and larger than or equal to a preset second value, determining the water usage habit of the hour as a horizontal valley period.
Preferably, after determining the water usage habit of the user in each hour, the method further comprises the following steps:
according to a preset conversion relation, the water consumption habit of the user in each hour is converted into a preset value, the preset value corresponding to each hour is stored into a second preset array, the second array comprises 24 second elements, and each second element is used for recording the preset value corresponding to each hour.
In a second aspect, an embodiment of the present invention provides a water habit analysis device, including a first array building module and a habit analysis module, where the habit analysis module includes a water temperature change rate calculation unit, a judgment unit, a frequency increasing unit, and a water 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 water temperature change rate meets the change rate standard in each preset time period;
the habit analysis module is used for executing a habit analysis step, 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 a current period, acquiring a water temperature natural change rate with the calculation time closest to the current period, and calculating the water temperature natural change rate once every N periods;
the judging unit is used for judging whether the first water temperature change rate meets a change rate standard according to the water temperature natural change rate;
the frequency increasing unit is used for increasing the frequency once in 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 habit determining unit is used for determining the water habit of the user according to the first array, determining the corresponding heating strategy according to the water 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 habit analysis method according to the first aspect according to instructions in the computer program.
In a fourth aspect, embodiments of the present invention provide a storage medium storing computer-executable instructions which, when executed by a computer processor, perform a water habit analysis method as described in the first aspect.
The embodiment of the invention provides a water habit analysis method, a device, a terminal device and a storage medium, wherein the method comprises the following steps: establishing a first array, wherein 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 execution habit analysis step specifically comprises the following steps: 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 water temperature natural change rate with the calculation time closest to the current period, wherein the water temperature natural change rate is calculated once every N periods; judging whether the first water temperature change rate meets the change rate standard according to the natural water temperature change rate; if yes, increasing the times for one time in a preset time period corresponding to the first array according to the time of the current period; and determining the water habit of the user according to the first array, determining the corresponding heating strategy according to the water habit, and re-executing the habit analysis step.
According to the embodiment of the invention, the first array for recording the times that the water temperature change rate meets the change rate standard in each preset time period is established in advance, then the first water temperature change rate of the hot water tank of the heat pump water heater in the current period is calculated, the water temperature natural change rate of which the calculated time is closest to the current period is obtained, whether the first water temperature change rate and the water temperature natural change rate meet the change rate standard is judged, if so, the times are increased once in the preset time period corresponding to the first array, finally the water habit of a user is determined according to the first array, and the corresponding heating strategy is determined according to the water habit, so that the water habit of the user can be determined under the condition that the additional sensor is not required to be increased, and the embodiment of the invention continuously executes the habit analysis step, so that the longer the service time of the heat pump water heater is, the more the recorded times in the first array are, the more accurate the determined water habit of the user can be, and intelligent analysis of the water habit of the user is realized.
Drawings
Fig. 1 is a flowchart of a water 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 for calculating a natural change rate of water temperature according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a water habit analyzer 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 drawings illustrate specific embodiments of the application sufficiently to enable those skilled in the art to practice them. The embodiments represent only 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 encompasses 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. 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 necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or terminal device that comprises a list of elements does not include only those elements but may include other elements not expressly listed. Various embodiments are described herein in a progressive manner, each embodiment focusing on differences from other embodiments, and identical and similar parts between the various embodiments are sufficient to be seen with each other. The structures, products and the like disclosed in the embodiments correspond to the parts disclosed in the embodiments, so that the description is relatively simple, and the relevant parts refer to the description of the method parts.
Example 1
Firstly, it should be noted that when the heat pump water heater is in the heating mode, there are three general application scenarios:
(1) When the user does not use water (constant temperature period/water consumption valley period), the water temperature can be slowly reduced due to natural dissipation of heat of the hot water tank, and when the water temperature is reduced to be lower than R1-R4, the heat pump needs to start heating until the water temperature is heated to a position above R1+R5. At this time, since the hot water tank is not supplied with cold water (tap water), the heating time is shorter than when the user uses water.
(2) When a user uses a small amount of water (the water consumption period), the water temperature can be quickly reduced, but due to the fact that the water consumption is small, after the user stops using the water, the water temperature is still above R1-R4, the heat pump can not be started to heat immediately, the time of the heat pump constant temperature period can be shortened, and constant temperature heating can be triggered more quickly.
(3) When a user uses a large amount of water (water use peak period), the water temperature of the hot water tank is rapidly reduced, and when the water temperature is reduced to be lower than R1-R4, the heat pump needs to start heating until the water temperature is heated to be higher than 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 that when the user does not use water.
Wherein T1 is the temperature of the water tank, and the actual water temperature in the hot water tank;
r1 is a target temperature, a water temperature set by a user, and the heat pump is required to heat water in the water tank to the water temperature;
r4, constant temperature startup return difference, when T1 is less than R1-R4, the heat pump needs to start heating;
and R5, stopping the machine at constant temperature, and stopping heating when T1 is more than R1+R5.
As shown in fig. 1, fig. 1 is a flowchart of a water habit analysis method according to an embodiment of the present invention. The water habit analysis method provided by the embodiment of the invention can be executed by the water habit analysis device, the water habit analysis device can be realized in a software and/or hardware mode, and the water habit analysis device can be formed by two or more physical entities or can be formed by one physical entity. For example, the water habit analysis device may be a computer, an upper computer, a tablet, or the like. The method comprises the following steps:
In this embodiment, a first array is first established in advance, and the number of times that the water temperature change rate meets the change rate standard in each preset time period is recorded in the first array. Illustratively, in one embodiment, the predetermined time period includes [0:00-6:00], (6:00-12:00 ], (12:00-18:00 ], (18:00-24:00 ], and the number of times the rate of change of the water temperature in each time period satisfies the rate of change criterion is recorded in the array, for example, the number of times the [0:00-6:00] is 10, (6:00-12:00 ] is 20, etc.).
Based on 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 used to record the number of times that the water temperature change rate meets the change rate criterion in each hour, and the last first element is used to record the sum of the number of times recorded by the first 24 first elements in the first array.
In one embodiment, a 16-bit unsigned integer array is established, the array is used as a first array, and the first array comprises 25 first elements, wherein the first 24 first elements are respectively used for recording the times that the water temperature change rate in each hour meets the change rate standard, and the last first element is used for recording 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 integer is created, with 25 first elements AI [ i ], 0.ltoreq.i.ltoreq.24 in the first array. Wherein, the first elements AI [0] to AI [23] correspond to the time period formed by 0 to 23 points in one day, i.e. AI [0] represents 0 to 1 point, AI [1] represents 1 to 2 points … … AI [23] represents 23 to 24 points, the value recorded in each first element AI [ i ] is the number of times that the change rate of water temperature in the corresponding hour meets the change rate standard, the first element AI [24] is used for recording the sum of the times recorded by the first elements AI [0] to AI [23], and the structure of the first array is shown in FIG. 2.
When the habit analysis step is executed, a first water temperature change rate of the hot water tank of the heat pump water heater in the current period is calculated periodically, and the first water temperature change rate reflects the water temperature change speed of the hot water tank of the heat pump water heater in the current period. Exemplary, at every t 1 The time period of (10 min) was taken as one cycle, and in each cycle, the tank temperature change value DeltaT of the hot water tank of the heat pump water heater was obtained 1 According to the temperature change value DeltaT of the water tank 1 The first water temperature change rate V in each period can be calculated t Wherein V is t ＝△T 1 /t 1 。
And then, further acquiring the water temperature natural change rate with the calculated time closest to the current period in the current period, wherein the water temperature natural change rate reflects the water temperature natural change rate in a hot water tank of the heat pump water heater, and 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 will be appreciated that N is a positive integer, and the value of N and the time length of each period may be set according to the actual needs of the user, and in this embodiment, the value of N and the time length of each period are not specifically limited. Illustratively, in one embodiment, N may be set to 3 and the length of time for each cycle may be set to 20 minutes.
In one embodiment, in order to avoid inaccuracy of the calculated natural rate of change of the water temperature caused by the water consumption by the user in a plurality of consecutive periods, the step S102 is started after the preset natural rate of change of the water temperature is calculated for N1 times.
On the basis of the above embodiment, the specific process of calculating the natural rate of change of the water temperature in step 1021 once every N cycles is performed by steps 10211 to 10216, as shown in fig. 3, and the specific process is as follows:
First, the second water temperature change rate of the hot water tank of the heat pump water heater in each period is calculated periodically. The specific process may refer to the specific process of calculating the first water temperature change rate in step 1021, and will not be described in detail in this step.
Step 10212, after each N periods, calculating the average change rate and standard deviation of the change rate of the water temperature in the N periods according to the second change rate of the water temperature in each period of the N periods.
And after N periods, calculating the average change rate and 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. Exemplary, in one embodiment, after accumulating N cycles, V is obtained t1 ～V tN N second water temperature change rates are calculated according to the N second water temperature change rates, and the average value of the N second water temperature change rates is calculated to obtain the average water temperature change rate V N is equal to Calculating the standard deviation of the N second water temperature change rates to obtain a change rate standard deviation sigma VN 。
Then, further judging the standard deviation sigma of the change rate VN Whether or not it is equal to or less than a preset standard deviation threshold sigma V threshold 。
It should be further noted that the standard deviation threshold sigma V threshold For judging whether the second water temperature change rate has large mutation in N periods, because the mutation in the second water temperature change rate is always caused by water consumption of users, if the water consumption of users in N periods is increased, the temperature reduction process is accelerated, and the average water temperature change rate V in N periods is caused N is equal to Cannot more accurately represent the natural rate of temperature drop, and therefore only the standard deviation sigma of the rate of change VN Less than or equal to a preset standard deviation threshold sigma V threshold Only N cycles are representedThe internal water temperature naturally drops.
If the rate of change standard deviation sigma VN Less than or equal to a preset standard deviation threshold sigma V threshold Judging whether the historical water temperature natural change rate obtained by the last calculation exists or not; if the rate of change standard deviation sigma VN Is greater than a preset standard deviation threshold sigma V threshold The natural rate of change of the water temperature in this time N cycles is not calculated.
If the latest calculated natural change rate of the historical water temperature exists, dividing the sum of the natural change rate of the historical water temperature and the average change rate of the water temperature by 2 to obtain the natural change rate of the water temperature, wherein the formula is as follows:
V self-supporting ＝(V Self history +V N is equal to )/2
Wherein V is Self-supporting For natural rate of change of water temperature, V Self history Is the natural rate of change of the historical water temperature.
If not, it indicates that N cycles have not been reached, at this time, let V Self-supporting ＝V N is equal to 。
The embodiment of the invention repeats steps 10211-10216 once every N cycles, when the user uses the device for a longer time, V Self-supporting The closer to the true natural rate of water temperature drop. It can be appreciated that V when the water temperature decreases Self-supporting Negative number, V when water temperature rises Self-supporting Is a positive number.
After the natural change rate V of the water temperature is obtained Self-supporting Then, according to the natural change rate V of the water temperature Self-supporting Further judge the first water temperature change rate V t Whether 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 in step 1022 is performed by steps 10221-10222 according to the natural change rate of the water temperature, specifically:
step 10221, multiplying the natural water temperature change rate by a preset multiple to obtain a first natural water temperature change rate. It can be appreciated that the preset multiple may be set according to actual needs, and in this embodiment, specific numerical values of the preset multiple are not limited. Illustratively, in one embodiment, the first water temperature natural rate of change calculation formula is: v (V) First self-priming ＝X*V Self-supporting Wherein X is a preset multiple.
Step 10222, judging whether the absolute value of the first water temperature change rate is larger than the absolute value of the first water temperature natural change rate.
After the first water temperature natural change rate is calculated, the first water temperature change rate V is further judged t Whether or not the absolute value of (a) is smaller than the natural change rate V of the first water temperature First self-priming Is the absolute value of (c).
It should be further noted that, although the heat preservation measure of the hot water tank of the heat pump water heater is good, the temperature drop rate of the hot water tank at low ring temperature is faster than that at high ring temperature, but the drop rate is obviously much smaller than that of the water tank at user's water consumption, and the two conditions can be distinguished by setting the preset multiplying power X.
If so, the absolute value of the natural change rate of the first water temperature in the current period is more than X times of the absolute value of the natural change rate of the water temperature, the judgment standard of the water temperature falling rate of 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 number of times is increased by 1 in the corresponding time period. Illustratively, in one embodiment, such as when it is currently at 18:25, a first element AI [18] is found in the first array that records the number of times the rate of change of water temperature meets the rate of change criteria within 18-19 points, for the value +1 of AI [18] (AI [18] = AI [18] +1). If not, the habit analysis step is re-executed.
And step 1024, determining the water habit of the user according to the first array, determining the corresponding heating strategy according to the water habit, and re-executing the habit analysis step.
And then, according to the times that the water temperature change rate 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 habit of the user is further determined, and the corresponding heating strategy is designated according to the water consumption habit of the user. For example, in the first hour of the water peak period and the water peak period, the water temperature of the water tank is kept at the maximum water temperature Rmax, hot water is prepared in advance, the heat pump can produce the hot water with the maximum capacity, and the hot water supply is ensured; at the using level Duan Qi, the water temperature of the water tank is kept at the preset water temperature R01 by a user, so that hot water supply is ensured; in the water valley period, according to the valley heat preservation water temperature Rlow and the water temperature R01 set by a user, when the temperature R01-Rlow is more than or equal to 10 ℃, heat preservation is carried out according to the temperature R01-5 ℃, otherwise, heat preservation is carried out according to the temperature Rlow.
In one embodiment, in order to avoid inaccuracy in the determined water usage habit of the user caused by too few times recorded in the first array, step S1024 is performed after N2 times are recorded in the first array.
Finally, the habit analysis step is re-executed, and as the time for using the heat pump water heater by the user is longer and longer, the times recorded in the first array are more and more, so that the water 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, obtaining the sum recorded by the last first element in the first array, and calculating the proportion of the corresponding times in each hour recorded in the first array to the sum.
If the number of times is increased in the preset time period corresponding to the first array in the current period, adding the recorded number of times to each first element to obtain the sum of the number of times, and giving the sum value to the last first element in the first array, namely AI [24] =AI [0] +AI [1] + … … AI [23].
And then, further calculating the proportion of the corresponding times in each hour recorded by each element to the sum. Illustratively, for the first element AI 0, which records the number of times the rate of change of water temperature satisfies the rate of change criterion within 0 to 1 point, the value of AI 0 is divided by the value of AI 24 to obtain a ratio, the ratio being accurate to 1%.
10242, determining the water consumption habit of an hour as a water consumption peak period when the corresponding proportion of the hour is larger than a preset first value;
10243, determining the water consumption habit of an hour as a water consumption valley period when the corresponding proportion of the hour is smaller than a preset second value;
step 10244, determining the water usage habit of an hour as a horizontal valley period when the corresponding proportion of the hour is smaller than or equal to a preset first value and larger than or equal to a preset second value.
And then, determining the water consumption habit of the user in each hour according to the proportion of the corresponding times in each hour recorded by each first element to the sum. In one embodiment, the value a is set to a first value, the value B is set to a second value, when the proportion corresponding to each hour is greater than a, the water consumption habit of the hour is recorded as a water consumption peak period, when the proportion corresponding to each hour is less than B, the water consumption habit of the hour is recorded as a water consumption valley period, and other conditions are recorded as a water consumption level period, and it is understood that the value of A, B can be set according to actual needs.
In one embodiment, after determining the water usage habit of the user in each hour, the method further includes step 1025, specifically:
Step 1025, converting the water consumption habit of the user in each hour into a preset value according to a preset conversion relationship, and storing the preset value corresponding to each hour into a second array established in advance, wherein the second array comprises 24 second elements, and each second element is used for recording the preset value corresponding to each hour.
In one embodiment, a conversion relationship between the water usage habit and the numerical value may be preset, and then according to the conversion relationship, the water usage habit in each hour may be converted into a preset numerical value, and the preset numerical value corresponding to each hour is stored in a second preset array. The second group comprises 24 second elements, and each second element is used for recording a preset numerical value corresponding to each hour. Illustratively, in one embodiment, a conversion relationship is pre-established, converting the water peak period to a value of 2, converting the water level period to a value of 1, and converting the water valley period to 0. Then, an unsigned character array is established as a second array AIH [ 24 second elements AIH [ j ] are present in the second array AIH [ j ], wherein 0.ltoreq.j.ltoreq.23. Each second element AIH [ j ] is used for recording the preset value corresponding to each hour, namely AIH [0] records the preset value corresponding to 0-1 point, AIH [1] records the preset value corresponding to 1-2 points … … AIH [23] records the preset value corresponding to 23-24 points. When an hour is judged to be a water use peak period, the value of the corresponding second element is set to 2 in the second group AIH [ ], when an hour is judged to be a water use horizontal period, the value of the corresponding second element is set to 1 in the second group AIH [ ], and when an hour is judged to be a water use valley period, the value of the corresponding second element is set to 0 in the second group AIH [ ]. For example, if the water usage habit corresponding to 0-1 point is the horizontal 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 of a certain period is needed to be known, only the corresponding value of the second element is needed to be extracted.
In one embodiment, after the first water temperature change rate meets the change rate standard, before increasing the number of times in the preset time period corresponding to the first array according to the time of the current period, the method further includes the following steps:
judging whether the first array reaches a preset memory empty condition.
It is appreciated that the memory flush condition may be set according to actual needs, and in an exemplary embodiment, the memory flush condition is set to be whether the value of the first array is equal to or greater than 65500.
If yes, reducing the times recorded in the first array, if not, continuing to execute the step of increasing the times once in the preset time period corresponding to the first array according to the time of the current period.
If the first array reaches the preset memory empty condition, the number of times recorded in the first array is reduced. Illustratively, in one embodiment, if the first array AI [ ] is greater than or equal to 65500, the values of the first elements AI [0] through AI [23] in the first array AI [ ] are all divided by 100 and reassigned (e.g., AI [0] = AI [0 ]/100). It should be further noted that, the reason why the value in the first array is reduced by 100 times is that the maximum value that can be recorded in the 16-bit unsigned integer array is 65536, the memory needs to be emptied periodically, which may affect the accuracy of determining the water habit of the user in a short period of time, but does not affect the accuracy of the user in a long period of time, it will be appreciated that if the value recorded in the first array needs to be more accurate and is less affected during the period of time of the memory being emptied, the value can be recorded by using the unsigned 32-bit long integer array (even larger array), and the distortion rate of the data can be smaller. It will be appreciated that the values are scaled down by a factor of 100, leaving only integers.
According to the embodiment of the invention, the first array for recording the times that the water temperature change rate meets the change rate standard in each preset time period is established in advance, then the first water temperature change rate of the hot water tank of the heat pump water heater in the current period is calculated, the water temperature natural change rate of which the calculated time is closest to the current period is obtained, whether the first water temperature change rate and the water temperature natural change rate meet the change rate standard is judged, if so, the times are increased once in the preset time period corresponding to the first array, finally the water habit of a user is determined according to the first array, and the corresponding heating strategy is determined according to the water habit, so that the water habit of the user can be determined under the condition that the additional sensor is not required to be increased, and the embodiment of the invention continuously executes the habit analysis step, so that the longer the service time of the heat pump water heater is, the more the recorded times in the first array are, the more accurate the determined water habit of the user can be, and intelligent analysis of the water habit of the user is realized.
Example two
As shown in fig. 4, fig. 4 is a schematic structural diagram of a water habit analyzer according to an embodiment of the present invention, which includes a first array building module 201 and a habit analyzing module 202, wherein the habit analyzing module includes a water temperature change rate calculating unit 2021, a judging unit 2022, a frequency increasing unit 2023 and a water habit determining unit 2024;
The first array establishing module 201 is configured to establish a first array, where the first array is configured to record the number of times that the water temperature change rate meets the change rate standard in each preset time period;
the habit analysis module 202 is configured to perform a habit analysis step, specifically:
the water temperature change rate calculating 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, obtain a water temperature natural change rate with a calculation time closest to the current period, and calculate the water temperature natural change rate once every N periods;
the judging unit 2022 is configured to judge whether the first water temperature change rate meets a change rate criterion according to the natural change rate of the water temperature;
the number increasing unit 2023 is configured to increase the number of times in a preset time period corresponding to the first array according to the time in which the current period is located when the first water temperature change rate meets the change rate criterion;
the water usage habit determining unit 2024 is configured to determine a 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 configured to calculate the natural change rate of the water temperature once every N cycles, specifically:
The method comprises the steps of periodically calculating a second water temperature change rate of a hot water tank of the heat pump water heater in each period;
after each N periods, calculating the average change rate and standard deviation of the change rate of the water temperature in the N periods according to the second water temperature change rate of each period in the N periods;
judging whether the standard deviation of the change rate is smaller than or equal to a preset standard deviation threshold value;
if so, judging whether the historical water temperature natural change rate obtained by the last calculation exists or not;
if the water temperature exists, dividing the sum of the natural change rate of the historical water temperature and the average change rate of the water temperature by 2 to obtain the natural change rate of the water temperature;
if not, the average change rate of the water temperature is taken as the natural change rate of the water temperature.
On the basis of the above embodiment, the determining unit 2022 is configured to determine, according to the natural rate of change of the water temperature, whether the first rate of change of the water temperature meets the rate of change criterion specifically:
the method comprises the steps of multiplying the natural water temperature change rate by a preset multiple to obtain a first natural water temperature change rate;
it is determined whether the absolute value of the first water temperature change rate is smaller than the absolute value of the first water temperature natural change rate.
Based on 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 used to record the number of times that the water temperature change rate meets the change rate criterion in each hour, and the last first element is used to record the sum of the number of times recorded by the first 24 first elements in the first array.
On the basis of the above embodiment, the habit analysis module 202 further includes an array emptying unit, where the array emptying unit is configured to determine, after the first water temperature change rate meets the change rate criterion, whether the first array reaches a preset memory emptying condition according to the time of the current period before increasing the number of times in a preset time period corresponding to the first array; if yes, reducing the times recorded in the first array, if not, continuing to execute the step of increasing the times once in 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, according to the first array, the water usage habit of the user specifically as follows:
the method comprises the steps of obtaining the sum recorded by the last first element in a first array, and calculating the proportion of the corresponding times in each hour recorded in the first array to the sum;
when the corresponding proportion of an hour is larger than a preset first value, determining the water consumption habit of the hour as a water consumption peak period;
when the corresponding proportion of an hour is smaller than a preset second value, determining the water consumption habit of the hour as a water consumption valley period;
And when the proportion corresponding to an hour is smaller than or equal to a preset first value and larger than or equal to a preset second value, determining the water usage habit of the hour as a horizontal valley period.
On the basis of the above embodiment, the habit analysis module 202 further includes a conversion unit, where the conversion unit is configured to convert the water habit of the user in each hour into a preset value according to a preset conversion relationship after determining the water habit of the user in each hour, and store the preset 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 configured to record the preset value corresponding to each hour.
Example III
The present embodiment also provides a terminal device, as shown in fig. 5, a terminal device 30, the terminal device including 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 perform the steps of one of the embodiments of the water habit analysis method described above according to 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 complete the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions, which instruction segments are used for describing the execution of the computer program 302 in the terminal device 30.
The terminal device 30 may be a computing device such as a desktop computer, a notebook computer, a palm computer, and a cloud server. The terminal device 30 may include, but is not limited to, a processor 300, a memory 301. It will be appreciated by those skilled in the art that fig. 5 is merely an example of the terminal device 30 and is not meant to be limiting of the terminal device 30, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., the terminal device 30 may also include input and output devices, network access devices, buses, etc.
The processor 300 may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), off-the-shelf Programmable gate arrays (FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 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) or 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 will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform 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, randomAccess Memory), a magnetic disk, or an optical disk, or other various media in which a computer program can be stored.
Example IV
Embodiments of the present invention also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are for performing a water habit analysis method comprising the steps of:
establishing a first array, wherein 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 execution habit analysis step specifically comprises the following steps:
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 water temperature natural change rate with the calculation time closest to the current period, wherein the water temperature natural change rate is calculated once every N periods;
judging whether the first water temperature change rate meets the change rate standard according to the natural water temperature change rate;
if yes, increasing the times for one time in a preset time period corresponding to the first array according to the time of the current period;
and determining the water habit of the user according to the first array, determining the corresponding heating strategy according to the water habit, and re-executing the habit analysis step.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the embodiments of the present invention are not limited to the particular embodiments described herein, but are capable of numerous obvious changes, rearrangements and substitutions without departing from the scope of the embodiments of the present invention. Therefore, while the embodiments of the present invention have been described in connection with the above embodiments, the embodiments of the present invention are not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit 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 (9)
1. A water habit analysis method, comprising the steps of:
establishing a first array, wherein 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 execution habit analysis step specifically comprises the following steps:
the method comprises the steps of periodically calculating a first water temperature change rate of a hot water tank of a heat pump water heater in a current period, obtaining a water temperature natural change rate with the calculation time closest to the current period, and calculating once every N periods, wherein the method comprises the following steps: calculating a second water temperature change rate of a hot water tank of the heat pump water heater in each period, calculating a water temperature average change rate and a change rate standard deviation in N periods according to the second water temperature change rate of each period in the N periods after each period passes by N periods, judging whether the change rate standard deviation is smaller than or equal to a preset standard deviation threshold value, judging whether a historical water temperature natural change rate obtained by last calculation exists or not if the change rate is smaller than the preset standard deviation threshold value, dividing the sum of the historical water temperature natural change rate and the water temperature average change rate by 2 to obtain a water temperature natural change rate, and taking the water temperature average change rate as the water temperature natural change rate if the change rate is not present;
Judging whether the first water temperature change rate meets a change rate standard according to the water temperature natural change rate;
if yes, 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 habit of the user according to the first array, determining a corresponding heating strategy according to the water habit, and re-executing the habit analysis step.
2. The water habit analysis method according to claim 1, wherein the specific process of judging whether the first water temperature change rate meets the change rate criterion according to the natural water temperature change rate is as follows:
multiplying the natural water temperature change rate by a preset multiple to obtain a first natural water temperature change rate;
and judging whether the absolute value of the first water temperature change rate is larger than the absolute value of the first water temperature natural change rate.
3. A water habit analysis method according to claim 1, wherein the first array is a 16-bit unsigned integer array, the first array comprises 25 first elements, wherein the first 24 first elements are used to record the number of times the water temperature change rate satisfies the change rate criterion in each hour, respectively, and the last first element is used to record the sum of the number of times the first 24 first elements are recorded in the first array.
4. A water habit analysis method according to claim 3, wherein after the first water temperature change rate meets the change rate standard, before increasing the number of times in the preset time period corresponding to the first array according to the time of the current period, the method further comprises the steps of:
judging whether the first array reaches a preset memory emptying condition or not;
if yes, reducing the times recorded in the first array, if not, continuing to execute the step of increasing the times once in a preset time period corresponding to the first array according to the time of the current period.
5. A water habit analysis method according to claim 3, wherein the specific process of determining the water habit of the user according to the first array is:
acquiring the sum recorded by the last first element 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 corresponding proportion of an hour is larger than a preset first value, determining the water consumption habit of the hour as a water consumption peak period;
when the corresponding proportion of an hour is smaller than a preset second value, determining the water consumption habit of the hour as a water consumption valley period;
And when the proportion corresponding to an hour is smaller than or equal to a preset first value and larger than or equal to a preset second value, determining the water usage habit of the hour as a horizontal valley period.
6. The water habit analysis method of claim 5, further comprising the steps of, after determining the water habit of the user for each hour:
according to a preset conversion relation, the water consumption habit of the user in each hour is converted into a preset value, the preset value corresponding to each hour is stored into a second preset array, the second array comprises 24 second elements, and each second element is used for recording the preset value corresponding to each hour.
7. The water habit analysis device is characterized by comprising a first array building module and a habit analysis module, wherein the habit analysis module comprises a water temperature change rate calculation unit, a judgment unit, a frequency increase unit and a water habit determination 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 water temperature change rate meets the change rate standard in each preset time period;
The habit analysis module is used for executing a habit analysis step, 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 a current period, acquiring a water temperature natural change rate with the calculated time closest to the current period, calculating a second water temperature change rate of the hot water tank of the heat pump water heater in each period every N periods, calculating a water temperature average change rate and a change rate standard deviation in N periods according to the second water temperature change rate of each period in N periods after each period passes through N periods, judging whether the change rate standard deviation is smaller than or equal to a preset standard deviation threshold, if yes, judging whether a 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 water temperature average change rate by 2 to obtain a water temperature natural change rate, and if no, taking the water temperature average change rate as the water temperature natural change rate;
the judging unit is used for judging whether the first water temperature change rate meets a change rate standard according to the water temperature natural change rate;
The frequency increasing unit is used for increasing the frequency once in 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 habit determining unit is used for determining the water habit of the user according to the first array, determining the corresponding heating strategy according to the water habit, and re-executing the habit analysis step.
8. 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 configured to execute a water habit analysis method according to any one of claims 1 to 6 according to instructions in the computer program.
9. A storage medium storing computer executable instructions which, when executed by a computer processor, are adapted to perform a water habit analysis method according to any one of claims 1 to 6.
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