CN114971206A - Water-saving and water-controlling method and system for campus public bathhouse - Google Patents
Water-saving and water-controlling method and system for campus public bathhouse Download PDFInfo
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Abstract
The invention relates to the technical field of artificial intelligence, in particular to a water-saving and water-controlling method and system for a campus public bathhouse. Firstly, collecting the water outlet flow, the bath room environment temperature, the water outlet temperature and the water using time of a shower; calculating habit evaluation factors of the bather by combining the water using time length and the water outlet temperature; based on the bathhouse environment temperature, performing cold and hot point analysis on the bathhouse environment temperature to determine the distribution condition of the bathhouse environment temperature and obtain the environment temperature scores of all positions; determining a current system understanding coefficient according to the difference of the environmental temperature scores and the difference of the water outlet flow; the behavior of the shower person is judged based on the water outlet temperature and the water using time length to obtain a judgment coefficient, and when the shower person has the behavior of wasting water, the maximum water outlet flow and the water outlet temperature are adjusted based on the habit evaluation factor and the system forgiveness coefficient. The embodiment of the invention realizes the adjustment and control of the maximum water outlet flow and the water outlet temperature by analyzing the acquired data information so as to achieve the purposes of saving water and energy.
Description
Technical Field
The invention relates to the technical field of artificial intelligence, in particular to a water-saving and water-controlling method and system for a campus public bathhouse.
Background
Currently, each college advances the construction of a smart campus, realizes multiple functions of one card in the campus, and directly pays by using the campus card in multiple scenes. The common student just need the plug-in card just can enjoy hot water bath in the bathhouse, and the card reader just begins to deduct fee along with the time after just inserting the card according to the time of charging promptly, and not as the reference along with the change of water flow, can carry out the classmate experience of bathing in different positions and be different, on the great position of water flow, under the same bathing time, the same ratio is extravagant the water yield more, and the water flow and the temperature of not controlling the shower can lead to some personnel to have the action of water waste.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a method and a system for water saving and control of a campus public bathhouse, and the adopted technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a method for saving and controlling water in a campus public bathhouse, including the following steps:
collecting data information of a shower, comprising: the water outlet flow, the bath room environment temperature, the water outlet temperature and the water using time of the shower;
evaluating the water waste behavior of the bather during bathing by combining the water using time length and the water outlet temperature to obtain a habit evaluation factor; based on the bathing room environment temperature at each position, performing cold and hot point analysis on the bathing room environment temperature to determine the distribution condition of the bathing room environment temperature and obtain the environment temperature score of each position; determining a current system forgiveness coefficient according to the difference of the environmental temperature scores and the difference of the water outlet flow;
and judging the behavior of the shower person based on the water outlet temperature and the water using duration to obtain a judgment coefficient, and adjusting the maximum water outlet flow and the water outlet temperature based on the habit evaluation factor and the current system understanding coefficient when the shower person has the behavior of wasting water.
Preferably, the evaluating the water wasting behavior of the bather during bathing by combining the water using time length and the outlet water temperature to obtain a habit evaluation factor includes:
the calculation formula of the habit evaluation factor is as follows:
wherein W is the habit evaluation factor; e is a natural constant; time wash The water consumption time is long; count (Time) wash ) The number of showers is switched on and off;
the water consumption time length of the ith odd term in the water consumption time length sequence is; t is a unit of wi The water temperature is the ith water outlet temperature in the water outlet temperature sequence; t is a unit of std The standard outlet water temperature is set; alpha is a first correction coefficient; maxodd is the number of odd terms in the water use time length sequence; tan h is a hyperbolic tangent function; count is a counting function.
Preferably, the determining a current system understanding coefficient according to the difference of the environmental temperature scores and the difference of the outlet water flow rate includes:
calculating an initial system understanding coefficient according to the difference of the water outlet flow; the product of the initial system forgiveness coefficient and the absolute value of the ambient temperature score is the current system forgiveness coefficient.
Preferably, the calculating the initial system forgiveness coefficient according to the difference of the effluent flow rate includes:
the initial system forgiveness coefficient is calculated by the formula:
wherein Y is the initial system understanding coefficient; beta is a second correction coefficient; q i The flow is the ith water outlet flow in the water outlet flow sequence; the mean is a median function; mean (Q) is the median of the effluent flow sequence.
Preferably, the determining the behavior of the bather based on the water outlet temperature and the water using duration to obtain a determination coefficient includes:
the calculation formula of the judgment coefficient is as follows:
H＝Max(sign(tanh(mean((T′ wi -T std ) 2 )*α)-0.4),sign(t 1 *γ-t 1-Ginseng radix ))
Wherein H is the judgment coefficient; sign is a sign function; tan h is a hyperbolic tangent function; mean is a mean function; t is std Is the standard water outlet temperature；T′ wi The water temperature is the real-time outlet water temperature; alpha is a first correction coefficient; t is t 1 The water consumption time length of the 1 st section in the water consumption time length sequence is shown; gamma is a third correction coefficient; t is t 1-Ginseng radix Is the reference time of the water using time length of the 1 st section in the water using time length series.
Preferably, the adjusting the maximum outflow based on the habit evaluation factor and the current system understanding factor includes:
the calculation formula of the adjusted maximum water outlet flow is as follows:
wherein Q change The adjusted maximum water outlet flow is obtained; max is a maximum function; q Max The maximum water outlet flow in the water outlet flow sequence is obtained; w is the habit evaluation factor; e is a natural constant; j is the current system forgiveness coefficient.
Preferably, the adjusting the leaving water temperature based on the current system understanding coefficient includes:
the calculation formula of the adjusted outlet water temperature is as follows:
T change ＝T wi +(T std -T wi )*e -J
wherein, T change The adjusted water temperature of the outlet water is obtained; t is wi The water temperature is the ith outlet water temperature in the outlet water temperature sequence; t is a unit of std The standard outlet water temperature is set; e is a natural constant; j is the current system forgiveness coefficient.
In a second aspect, an embodiment of the present invention provides a water saving and controlling system for a campus public bathhouse, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method for saving and controlling water for the campus public bathhouse when executing the computer program.
The embodiment of the invention at least has the following beneficial effects:
the embodiment of the invention utilizes an artificial intelligence technology, and the method firstly collects data information of shower, and comprises the following steps: the water outlet flow, the bath room environment temperature, the water outlet temperature and the water using time of the shower; evaluating the water waste behavior of the bather during bathing by combining the water using time length and the water outlet temperature to obtain habit evaluation factors, wherein the habit evaluation factors reflect the water using habits of the bather and carry out subsequent analysis on the habit evaluation factors by combining the water using habits; based on the bathing room environment temperature at each position, performing cold and hot point analysis on the bathing room environment temperature to determine the distribution condition of the bathing room environment temperature and obtain the environment temperature score of each position; determining a current system understanding coefficient according to the difference of the environmental temperature scores and the difference of the water outlet flow, wherein the current system understanding coefficient and the bathhouse environmental temperature of the current position of the shower user are corrected, so that misjudgment on whether the shower user wastes water resources or not due to the difference of the bathhouse environmental temperatures is avoided; the behavior of the bather is judged based on the water outlet temperature and the water using duration to obtain a judgment coefficient, when the bather has the behavior of wasting water, the maximum water outlet flow and the water outlet temperature are adjusted based on the habit evaluation factor and the system forgiveness coefficient, and the maximum water outlet flow and the water outlet temperature are adjusted according to the water using habit, the influence of the position and the influence of the environmental temperature of the bathing room of the bather, so that the problem of water resource waste caused by personal habits is avoided. The embodiment of the invention realizes the adjustment and control of the maximum water outlet flow and the water outlet temperature by analyzing the acquired data information so as to achieve the purposes of saving water and energy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions and advantages of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of a method for saving and controlling water in a campus public bathhouse according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention for achieving the predetermined purpose, the following detailed description will be made on the water saving and controlling method and system for campus bathrooms according to the present invention, with reference to the accompanying drawings and preferred embodiments, and the detailed implementation, structure, features and effects thereof will be described below. In the following description, the different references to "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
The embodiment of the invention provides a method and a system for water conservation and control of a campus communal bathhouse. There are a plurality of shower stalls in every bathhouse under this scene, and the position of every shower stall is different, and some are close to the heating installation, and some are close to the window, all install the shower head in every shower stall, and the shower person can regulate and control shower head water flow and play water temperature by oneself, when the system detects the shower person and has the action of wasting water, controls the biggest water flow and play water temperature of its shower stall that corresponds. In order to solve the problem of water waste of some showerers, the embodiment of the invention realizes the adjustment and control of the maximum water outlet flow and the water outlet temperature by analyzing the acquired data information so as to achieve the purposes of water saving and energy saving.
The concrete scheme of the water saving and controlling method and system for the campus and the public bathhouse provided by the invention is described in detail below by combining with the accompanying drawings.
Referring to fig. 1, a flowchart illustrating steps of a method for saving and controlling water in a campus public bathhouse according to an embodiment of the present invention is shown, where the method includes the following steps:
step S100, collecting data information of the shower, including: the water outlet flow of the shower, the ambient temperature of the bath room, the water outlet temperature and the water using time.
The water outlet flow of the current shower system is measured firstly.
Due to different positions and different shower nozzles, the shower outlet flow rate is different when bathing is finally carried out. In order to achieve the purpose of saving water, it is necessary to detect the water flow and control the water flow when the water is discharged.
The water flow at the water outlet can be detected by installing the existing flowmeter on a water outlet pipeline of a shower, so that the size Q (L/min) of the water outlet flow can be monitored in real time.
Therefore, the size Q of the water outlet flow during showering is determined, and a water outlet flow sequence is obtained.
Further, the magnitude of the ambient temperature of the bathhouse in the environment proximate the current bather is determined.
When bathing, if the ambient temperature of a bath room is low, a user can not adjust the proportion of hot water independently to increase the ambient temperature of the body, and if the ambient temperature is low, most hot water resources are used for increasing the ambient temperature of the bath room, which is reasonable, but if the ambient temperature is high, the hot water with a high proportion is still used, which can be regarded as waste and needs to be controlled.
The collection of bathhouse ambient temperature uses distributed placement, namely a plurality of positions in the whole bathroom are provided with temperature sensors to form a net structure, and the temperature information of each position is collected.
Therefore, according to the distribution condition of the bathhouse, the bathhouse environment temperatures at a plurality of positions are obtained, and according to the change of the positions, a data set of the bathhouse environment temperatures is obtained, namely a bathhouse environment temperature sequence R ═ R A ,R B ,R C ……R more }。
Further, the water outlet temperature used by the current shower person is determined.
The water temperature of the outlet water is adjusted by a shower person according to own habits and then flows out, and the water temperature of the outlet water is possibly different when water flow is finally generated because the comfort degree of each person for sensing the water temperature is different.
If the temperature of the effluent water flowing out of a certain position is abnormally high or low and the duration is long, the problem that the use of the current position is wasted can be explained to a certain extent.
The temperature of the outlet water temperature is determined as follows: the temperature sensor is arranged on the inner side of the pipeline and is in direct contact with the flowing bath water for detection, so that the temperature of the outlet water at each water flow outlet is obtained. It should be noted that the temperature sensor is already waterproof.
Monitoring the outlet water temperature for a long time, namely obtaining the change condition of the outlet water temperature from the beginning of use of a shower person to the end of shower, and forming an outlet water temperature sequence T at each position w ＝{T w1 ,……T wi And the sampling frequency of the sequence is 0.2Hz, namely, the effluent water temperature information is acquired every 5 seconds.
Further, the length of water usage at each location is determined.
Generally, during bathing, some other washing steps are required, which do not require boiling water, and if the water is always in an open running state, the water-wasting state can be determined to exist currently.
If the current water flow is in an intermittent state, the current bather is indicated to perform other cleaning steps, and the current bather can be determined to be in a water-saving state by using water intermittently.
Because the starting of bathing is related operations after the card is inserted, the starting judgment state can be used for counting the water using time of a bather.
From this, the length of the water consumption Time for the shower of the person is determined, and a water consumption Time sequence Time is obtained wash ＝{t 1 ,t 2 ,t 3 ……t n }。
It should be noted that the above-mentioned water usage period is a data set generated when one shower person turns on and off the running water many times. The number n of final data sets is therefore uncertain. The data set is related to the bathing habits of the bather. And wherein the value in the even position indicates the time length of the flowing water closed by the shower person, namely the shower person operates the flowing water switch once, namely the time length data once is determined, and the value in the odd position is the water using time length of each section of the shower person.
Step S200, evaluating the water waste behavior of the bather during bathing by combining the water using time length and the water outlet temperature to obtain habit evaluation factors; based on the bathing room environment temperature at each position, performing cold and hot point analysis on the bathing room environment temperature to determine the distribution condition of the bathing room environment temperature and obtain the environment temperature score of each position; and determining a current system understanding coefficient according to the difference of the environmental temperature scores and the difference of the water outlet flow.
And (3) determining the behavior habit factors of water waste to be evaluated when the bather bathes.
Firstly, if the shower person does not close the running water from the opening to the ending, the behavior of water resource waste exists, and therefore, the habit evaluation factor of the current shower person to the water waste is measured according to the water using time length of the shower person during water using.
If the temperature of the outlet water used by the bather is not in the proper interval and the temperature of the outlet water is stable for a long time, the abnormal condition can be judged, and the current reason that the bather has the water waste can be determined. It should be noted that, in order to avoid misjudgment of the final result due to the large amount of cold water in the pipeline when the business is started every day, the system is not started within half an hour after the beginning of the business of the bathhouse.
And evaluating the water waste behavior of the bather during bathing by combining the water using time length and the water outlet temperature to obtain a habit evaluation factor.
The calculation formula of the habit evaluation factor is as follows:
wherein W is a habit evaluation factor; e is a natural constant; time wash Is a water-consuming time series; count (Time) wash ) The number of showers is switched on and off;
the water consumption time length of the ith odd term in the water consumption time length sequence is shown; t is wi The water temperature is the ith water outlet temperature in the water outlet temperature sequence; t is std The standard water outlet temperature is set; alpha is a first correction coefficient; maxodd is the number of odd terms in the water use time length sequence; tan h is a hyperbolic tangent function; count is a counting function. In the embodiment of the invention, the value of the first correction coefficient is 0.03, the standard outlet water temperature is 37 ℃, and in other embodiments, an implementer can adjust the value according to the actual situation.
The counting function is used for counting the number of parameters in the function, the number of elements in the water consumption duration is counted, the number of the elements is the number of times of switching on and off the shower, the more the number is counted, the more frequent the switching on and off of the water by a bather is indicated, and the attention degree of the bather to the water resource is further indicated.
Wherein, t iqi (Chinese character) toy Odd terms in the water usage time series. The second term of the calculation formula of the habit evaluation factor is used for measuring the effective running water time of a shower person, and the term can reflect the total water consumption of the shower person during the current bathing. The smaller the size of the item is, the more the current shower user can have strong water-saving consciousness, and the waste of water is less at present.
Thus, the habit evaluation factor of the behavior of the current bather on water waste is obtained.
It should be noted that the habit evaluation factor can be obtained by processing the relevant historical data, so as to avoid the final evaluation from being too conservative due to the rapid transition of the concept of water conservation, the historical data only refers to the last three times of data, each time of the data is measured, and then the average value of the data is obtained.
Further, the current system understanding coefficient is determined according to the difference of the environmental temperature distribution in the bathhouse and the difference of the water flow rate.
Firstly, based on the bathing room environment temperature at each position, the cold and hot point analysis is carried out on the bathing room environment temperature, the distribution condition of the bathing room environment temperature is determined, and the environment temperature score of each position is obtained.
If the ambient temperatures of the bathrooms in the bathrooms are consistent, the bathrooms are all constant ambient temperatures suitable for bathing, and the outlet water temperatures of all bathing positions are reasonably close; conversely, if one area is at a particularly high temperature, such as a warm air location during winter, so that the bather can turn the water temperature down, and one area is at a particularly low temperature, such as a window location during winter, so that the bather can turn the water temperature up, these conditions can be given a degree of forgiveness to interfere with the subsequent system water management.
And (4) performing cold and hot point analysis on the bathhouse ambient temperature at each position to determine the distribution condition of the temperature.
The purpose of using cold and hot spot analysis is to avoid temperature anomaly of a single area, namely that a shower person turns on hot water, so that the sensor misjudges the ambient temperature of the bathhouse at the current position. The cold-hot spot analysis can make a more detailed analysis of the bathhouse ambient temperature distribution with reference to the nearby temperature.
The evaluation field is set as the current bath room environment temperature T in the bath room, the conceptualization model is an inverse distance model, the distance calculation method is an Euclidean distance, the space weight matrix is standardized, and the others are kept as defaults.
In the spatial weight matrix, the implementer can set the central position weight to 1, the position near the window and the door ventilation position to 0.3 and the like according to the position weight determined by the bathhouse structure distribution, and the weight setting mode is not unique. The inverse distance model is a model commonly used in cold and hot spot analysis, and is well known to those skilled in the art.
Finally, according to the acquired bathhouse environment temperature data set, relevant parameters including the current Z score, the P value and the confidence coefficient of the current score are returned. Wherein, the Z score is the environmental temperature score, and the P value is the probability value.
If the Z score of the region is larger than 1, the region is surrounded by high value, and high value clustering is presented, so that the distribution characteristic of spatial aggregation of the region with higher temperature is formed. Conversely, if the Z-score for a region is less than-1, it indicates that the region is surrounded by low values, presenting low value clusters, thereby forming a spatially clustered distribution characteristic of regions with lower temperatures.
Wherein, the Z score is subject to the characteristic of statistical normal distribution, namely, the P value is maximum when Z is 0. The Z-score requires the practitioner to further set the long-term observation data based on the current actual layout of the bathhouse to be able to discover the current temperature anomaly.
It can thus be seen that the more abnormal the zone, the greater the absolute value of the ambient temperature score Z-score, while the sign indicates the direction of the cold-hot spot, i.e. indicates a high or low difference from the current temperature.
Secondly, due to the difference of position distribution and pipeline arrangement, the water outlet flow Q at each position can form obvious difference, and due to maintenance and the like, the shower nozzles can also form difference differently, and the difference can also change along with the number of the opened showers. This shower is a factor that is not manageable, and is therefore included as a system forgiveness factor.
The water flow at all shower locations is analyzed to determine the coefficient of variation of water flow at one location. And determining the understanding coefficient of the current system according to the difference of the environmental temperature scores and the difference of the water outlet flow. Specifically, the method comprises the following steps: calculating an initial system understanding coefficient according to the difference of the water outlet flow; the product of the initial system forgiveness coefficient and the absolute value of the ambient temperature score is the current system forgiveness coefficient.
The initial system forgiveness coefficient is calculated by the formula:
wherein Y is an initial system forgiveness coefficient; beta is a second correction coefficient; q i The flow is the ith water outlet flow in the water outlet flow sequence; median is a median function; mean (Q) is the median of the effluent flow sequence. In the embodiment of the present invention, the value of the second correction coefficient is 10, and in other embodiments, an implementer may adjust the value according to actual conditions.
If the outflow at this location is similar to the median value in the bathhouse, it is 1, i.e., if a waste event occurs, it is forgiving to a lower ratio.
Thus, an initial system understanding factor on the water flow velocity is determined based on the distribution of the water flow velocity at each location.
And determining the current system forgiveness coefficient based on the obtained initial system forgiveness coefficient.
The current system forgiveness coefficient is calculated by the formula J:
J＝|Z|*Y
wherein Z is the ambient temperature score; y is an initial system forgiveness coefficient.
Wherein, because the environmental temperature score has a direction, the absolute value of the environmental temperature score is processed; the initial system forgiveness coefficient Y represents an evaluation score of the difference in the water flow velocity distribution in the bathhouse, if both of the two difference scores are low, the current region is a normal region, i.e., the forgiveness coefficient is low, and if the two difference scores are higher, the system can forgiven to a certain extent for the current water usage behavior correction of the bather.
And step S300, judging the behavior of the shower person based on the water outlet temperature and the water using time length to obtain a judgment coefficient, and adjusting the maximum water outlet flow and the water outlet temperature based on the habit evaluation factor and the current system understanding coefficient when the shower person has the behavior of wasting water.
And obtaining a water waste behavior habit evaluation factor W based on the historical behavior of the current bather, and determining a current system understanding coefficient J by combining the position of the current bather in the bathhouse and the ambient temperature of the bathhouse.
And determining whether the bather has water waste behavior or not by combining the current water outlet temperature of the bather and the optimal water using interval time obtained by analyzing the big data in the bathhouse. It should be noted that the optimal water usage interval is obtained by referring to a population group whose habit evaluation factor W corresponding to the water wasting behavior is relatively small.
And judging the behavior of the bather based on the water outlet temperature and the water using time to obtain a judgment coefficient.
The calculation formula of the judgment coefficient is as follows:
H＝Max(sign(tanh(mean((T′ wi -T std ) 2 )*α)-0.4),sign(t 1 *γ-t 1-Ginseng radix ))
Wherein H is a judgment coefficient; sign is symbolA number function; tan h is a hyperbolic tangent function; mean is a mean function; t is a unit of std The standard water outlet temperature is set; t' wi The real-time outlet water temperature is obtained; alpha is a first correction coefficient; t is t 1 The water consumption time length of the 1 st section in the water consumption time length sequence is shown; gamma is a third correction coefficient; t is t 1-Ginseng radix Is the reference time of the water using time length of the 1 st section in the water using time length series. In the embodiment of the present invention, the value of the third correction coefficient is 0.8, and in other embodiments, an implementer may adjust the value according to an actual situation.
The first term of the calculation formula of the judgment coefficient is the measurement of the water temperature, the detection of the water temperature is carried out in real time, the average value is the average value of all data from the beginning of bathing to the monitoring time, the upper limit is 5 minutes, and if the temperature is not reduced below the standard within five minutes, the waste of hot water resources is reasonably explained. In short, it is determined whether or not a threshold value is reached.
Wherein, the second term of the calculation formula of the judgment coefficient is the judgment of the first bathing time length t 1-Ginseng radix The first stage is obtained according to the analysis of big data in the bathhouse, and the proper water using time is obtained, and if the first stage is overtime excessively, the current behavior of wasting water exists. The magnitude of the third correction coefficient is set to 0.8 to allow a shower person a certain amount of time to remain.
If the judgment coefficient H is a positive value, the water-wasting behavior of the current bather is shown, and a water control measure is immediately taken, namely the maximum water outlet flow and the water outlet temperature are adjusted based on the habit evaluation factor and the system understanding coefficient.
And adjusting the maximum water outlet flow based on the habit evaluation factor and the system forgiveness coefficient.
The calculation formula of the adjusted maximum water outlet flow is as follows:
wherein Q is change The adjusted maximum water outlet flow is obtained; max is a maximum function; q Max The maximum water outlet flow in the water outlet flow sequence is obtained; w is a habit evaluation factor; e is a natural constant; j is the current system forgiveness coefficient.
And adjusting the water outlet temperature based on the system forgiveness coefficient.
The calculation formula of the adjusted outlet water temperature is as follows:
T change ＝T wi +(T std -T wi )*e -J
wherein, T change The adjusted water temperature of the outlet water is obtained; t is wi The water temperature is the ith outlet water temperature in the outlet water temperature sequence; t is std The standard deviation of the outlet water temperature sequence is shown; e is a natural constant; j is the current system forgiveness coefficient. In the embodiment of the invention, the value of the standard outlet water temperature is 37 ℃, and the regulated outlet water temperature is regulated towards the standard outlet water temperature.
It should be noted that the adjustment mode of the outlet water temperature is to control the ratio of the hot water and the cold water by an electric valve, and the specific adjustment mode is a known technology of those skilled in the art.
The adjustment of the water temperature and the maximum water outlet flow is finished, and the purposes of water saving and energy saving are achieved.
In summary, the embodiment of the present invention utilizes the artificial intelligence technology, and the method firstly collects data information of shower, including: the water outlet flow, the bath room environment temperature, the water outlet temperature and the water using time of the shower; evaluating the water waste behavior of the bather during bathing by combining the water using time length and the water outlet temperature to obtain a habit evaluation factor; based on the bathing room environment temperature at each position, performing cold and hot point analysis on the bathing room environment temperature to determine the distribution condition of the bathing room environment temperature and obtain the environment temperature score of each position; determining a current system understanding coefficient according to the difference of the environmental temperature scores and the difference of the water outlet flow; the behavior of the shower person is judged based on the water outlet temperature and the water using time length to obtain a judgment coefficient, and when the shower person has the behavior of wasting water, the maximum water outlet flow and the water outlet temperature are adjusted based on the habit evaluation factor and the system forgiveness coefficient. The embodiment of the invention realizes the adjustment and control of the maximum water outlet flow and the water outlet temperature by analyzing the acquired data information so as to achieve the purposes of saving water and energy.
The embodiment of the invention also provides a water-saving and water-controlling system for the campus public bathhouse, which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor realizes the steps of the method when executing the computer program. Since the detailed description is given above for the water saving and controlling method for the campus and the public bathhouse, the detailed description is omitted.
It should be noted that: the precedence order of the above embodiments of the present invention is only for description, and does not represent the merits of the embodiments. And specific embodiments thereof have been described above. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A water-saving and water-controlling method for a campus public bathhouse is characterized by comprising the following steps:
collecting data information of a shower, comprising: the water outlet flow, the bath room environment temperature, the water outlet temperature and the water using time of the shower;
evaluating the water waste behavior of the bather during bathing by combining the water using time length and the water outlet temperature to obtain a habit evaluation factor; based on the bathing room environment temperature at each position, performing cold and hot point analysis on the bathing room environment temperature to determine the distribution condition of the bathing room environment temperature and obtain the environment temperature score of each position; determining a current system forgiveness coefficient according to the difference of the environmental temperature scores and the difference of the water outlet flow;
and when the shower person has the behavior of wasting water, adjusting the maximum outlet water flow and the outlet water temperature based on the habit evaluation factor and the current system forgiveness coefficient.
2. The method for saving and controlling water of a campus bathhouse as claimed in claim 1, wherein said combining said water usage duration and said outlet water temperature to evaluate the water wasting behavior of the bather during bathing to obtain habit evaluation factors comprises:
the calculation formula of the habit evaluation factor is as follows:
wherein W is the habit evaluation factor; e is a natural constant; time wash The water consumption time is long; count (Time) wash ) The number of showers is switched on and off; t is t iqi (Chinese character) toy The water consumption time length of the ith odd term in the water consumption time length sequence is; t is a unit of wi The water temperature is the ith outlet water temperature in the outlet water temperature sequence; t is std The standard water outlet temperature is set; alpha is a first correction coefficient; maxodd is the number of odd terms in the water use time length sequence; tan h is a hyperbolic tangent function; count is a counting function.
3. The method of claim 1, wherein the determining a current system understanding coefficient based on the difference in the ambient temperature scores and the difference in the outflow rate comprises:
calculating an initial system understanding coefficient according to the difference of the water outlet flow; the product of the initial system forgiveness coefficient and the absolute value of the ambient temperature score is the current system forgiveness coefficient.
4. The method of claim 3, wherein the calculating an initial system understanding coefficient based on the difference in the outflow comprises:
the initial system forgiveness coefficient is calculated by the formula:
wherein Y is the initial system understanding coefficient; beta is a second correction coefficient; q i The flow is the ith water outlet flow in the water outlet flow sequence; median is a median function; mean (Q) is the median of the effluent flow sequence.
5. The method of claim 1, wherein the determining the behavior of the bather based on the effluent temperature and the water usage duration to obtain a determination coefficient comprises:
the calculation formula of the judgment coefficient is as follows:
H＝Max(sign(tanh(mean((T′ wi -T std ) 2 )*α)-0.4),sign(t 1 *γ-t 1-Ginseng radix ))
Wherein H is the judgment coefficient; sign is a sign function; tan h is a hyperbolic tangent function; mean is a mean function; t is std The standard water outlet temperature is set; t' wi The real-time outlet water temperature is obtained; alpha is a first correction coefficient; t is t 1 The water consumption time length of the 1 st section in the water consumption time length sequence is shown; gamma is a third correction coefficient; t is t 1-Ginseng radix Is the reference time of the water using time length of the 1 st section in the water using time length series.
6. The method of claim 1, wherein adjusting the maximum outflow based on the habit assessment factor and the current system understanding factor comprises:
the calculation formula of the adjusted maximum water outlet flow is as follows:
wherein Q is change The adjusted maximum water outlet flow is obtained; max is a maximum function; q Max The maximum water outlet flow in the water outlet flow sequence is obtained; w is the habit evaluation factor; e is a natural constant; j is the current system forgiveness coefficient.
7. The method of claim 1, wherein adjusting the leaving water temperature based on the current system understanding coefficient comprises:
the calculation formula of the adjusted outlet water temperature is as follows:
T change ＝T wi +(T std -T wi )*e -J
wherein, T change The adjusted water temperature of the outlet water is obtained; t is wi The water temperature is the ith outlet water temperature in the outlet water temperature sequence; t is std The standard water outlet temperature is set; e is a natural constant; j is the current system forgiveness coefficient.
8. A water-saving and water-controlling system for a campus bathhouse, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method according to any one of claims 1 to 7 when executing the computer program.
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