CN110222409B - Method, device, equipment and storage medium for detecting residual water using time of electric water heater - Google Patents
Method, device, equipment and storage medium for detecting residual water using time of electric water heater Download PDFInfo
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- CN110222409B CN110222409B CN201910461886.2A CN201910461886A CN110222409B CN 110222409 B CN110222409 B CN 110222409B CN 201910461886 A CN201910461886 A CN 201910461886A CN 110222409 B CN110222409 B CN 110222409B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/08—Thermal analysis or thermal optimisation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
Abstract
The invention provides a method, a device, equipment and a storage medium for detecting the residual water using time of an electric water heater, wherein the method comprises the following steps: acquiring water flow data detected by a water flow sensor; judging whether the electric water heater is in a water using state or not according to the water flow data; when the electric water heater is in a water using state, acquiring the temperature of the water tank sensed by the temperature probe, resetting the first timer and starting timing; when the temperature decrease amount of the water tank reaches a first temperature threshold value, acquiring the current time of a first timer, recording the current time as first water using duration, acquiring the current water tank temperature sensed by a temperature probe, and recording the current water tank temperature as first water tank temperature; calculating the residual water using time of the electric water heater after the temperature of the water tank is reduced by the first temperature threshold according to a preset water outlet temperature threshold, the first water using time and the first water tank temperature; the method can effectively eliminate the influence of the volume deviation, the deviation of the water inlet flow and the energy loss in the water mixing process of the electric water heater, and improve the accuracy of the detection of the residual water using time.
Description
Technical Field
The invention relates to the technical field of detection of water consumption time of electric water heaters, in particular to a method, a device, equipment and a storage medium for detecting the residual water consumption time of an electric water heater.
Background
The water storage type electric water heater is a water heater which uses electricity as energy for heating, and after the traditional water storage type electric water heater is heated, the accurate use time length of the water heater cannot be known in the use process of a user, so that the condition that cold water is washed in the bathing process of the user can be caused, and the bathing comfort degree is reduced.
At present, the problems are not solved, and the conventional method is that a water discharge model is established by combining a water flow sensor, a water inlet temperature probe, a water outlet temperature probe and a water tank temperature probe which are arranged on a water heater through different cold water inlet flow and cold water inlet temperature, actual time data is obtained through testing through an actual water discharge test, so that a table of the water discharge model is obtained, and when the water heater discharges water, the remaining water consumption time of the water heater is obtained through table lookup; however, because the volume of the water tank of the water storage type electric water heater has deviation and the heat loss of mixed water, the residual water using time of the water heater calculated by adopting the water discharging model is not accurate enough, and each water discharging model is only suitable for a type of water heater, so that the universality is poor.
Disclosure of Invention
The invention aims to provide a method, a device, equipment and a storage medium for detecting the residual water time of an electric water heater, which can effectively improve the accuracy of detecting the residual water time of the electric water heater, are suitable for electric water heaters of different models and have high universality.
The first technical problem is solved by the following technical scheme:
a method for detecting the residual water using time of an electric water heater comprises the following steps:
acquiring water flow data detected by a water flow sensor arranged in a water inlet pipeline in real time;
judging whether the electric water heater is in a water using state or not according to the water flow data;
when the electric water heater is in a water using state, acquiring the temperature of the water tank sensed by a temperature probe arranged in the water tank in real time, and simultaneously resetting a first timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset first temperature threshold value, acquiring the current time of the first timer, recording the current time as first water using duration, and acquiring the current water tank temperature sensed by the temperature probe and recording the current water tank temperature as first water tank temperature;
and calculating the residual water using time of the electric water heater after the water tank temperature of the water tank is reduced by the first temperature threshold value according to a preset water outlet temperature threshold value, the first water using time and the first water tank temperature.
Compared with the background technology, the method for detecting the residual water using time of the electric water heater has the following beneficial effects:
after the electric water heater finishes the heating process, in the process of using water by a user, the time of temperature drop of the water tank and the time of the timer are continuously detected, and after the first temperature threshold value is reduced, the residual water using time of the electric water heater is updated once, so that the influences of volume deviation of the electric water heater, deviation of water inlet flow and energy loss in the water mixing process can be effectively eliminated, and the residual water using time calculated by the method is high in real-time and accuracy, so that more accurate time reminding can be provided for the user, and the comfort of the water storage type electric water heater is greatly improved; meanwhile, the method is suitable for electric water heaters of different models and has high universality.
In one embodiment, before the real-time acquiring of the water flow data detected by the water flow sensor disposed in the water inlet pipeline, the method further includes:
according to a preset heating temperature, a heating pipe arranged in the water tank is controlled to heat, and when the temperature of the water tank reaches the preset heating temperature, the heating pipe is controlled to stop heating.
In one embodiment, the calculating, according to a preset outlet water temperature threshold, the first water consumption time and the first water tank temperature, the remaining water consumption time of the electric water heater after the water tank temperature of the water tank drops by the first temperature threshold specifically includes:
calculating the residual water using time of the electric water heater according to a formula (1), and recording the residual water using time as a first residual water using time;
t＝(T i -T 1 )×t i (1)
wherein Ti is the temperature of the first water tank corresponding to the temperature drop of the water tank reaching a preset first temperature threshold value, T1 is a preset outlet water temperature threshold, and Ti is a first water using time length corresponding to the time when the temperature reduction amount of the water tank reaches a preset first temperature threshold.
In one embodiment, the method further comprises:
when the electric water heater is in a water using state, resetting the second timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset second temperature threshold, acquiring the current time of the second timer, recording the current time as the second water using time, and acquiring the current water tank temperature sensed by the temperature probe, and recording the current water tank temperature as the second water tank temperature;
wherein the preset second temperature threshold is a multiple of the preset first temperature threshold;
calculating the residual water using time of the electric water heater according to a preset water outlet temperature threshold, the second water using time and the second water tank temperature, and recording the residual water using time as second residual water using time;
acquiring a first residual water using time calculated when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold;
and calculating the remaining water time of the water tank after the temperature of the water tank drops by the second temperature threshold according to the first remaining water time and the second remaining water time which are calculated when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold.
Compared with the background technology, the method for detecting the residual water using time of the electric water heater has the following beneficial effects:
by adding a multiple value of the first temperature threshold: the second temperature threshold is used as the time sampling frequency of the second timer, the sampling precision of the temperature is improved, the average value of the first residual water using time and the second residual water using time which are obtained by calculating when the accumulated temperature drop of the water tank reaches the preset second temperature threshold is used as the residual water using time after the temperature of the water tank drops the second temperature threshold, and the accuracy of the residual water using time of the electric water heater can be further improved.
In one embodiment, the method further comprises:
when the electric water heater is in a water using state, resetting the third timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset third temperature threshold value, acquiring the current time of the third timer, recording the current time as a third water supply time length, and simultaneously acquiring the current water tank temperature sensed by the temperature probe, and recording the current water tank temperature as a third water tank temperature;
the preset third temperature threshold is a multiple of the preset first temperature threshold and the preset second temperature threshold respectively;
calculating the residual water using time of the electric water heater according to a preset water outlet temperature threshold, the third water using time and the third water tank temperature, and recording the residual water using time as third residual water using time;
acquiring first remaining water use time and second remaining water use time which are obtained by calculation when the accumulated water tank temperature drop of the water tank reaches the preset third temperature threshold;
and calculating the first remaining water time, the second remaining water time and the third remaining water time which are obtained by calculation when the accumulated water tank temperature drop of the water tank reaches the preset third temperature threshold, and calculating the remaining water time of the water tank after the water tank temperature of the water tank drops the third temperature threshold.
Compared with the background technology, the method for detecting the residual water using time of the electric water heater has the following beneficial effects:
further by adding a multiple value of the first temperature threshold and the second temperature threshold: the third temperature threshold is used as the time sampling frequency of a third timer of the timer, the sampling precision of the temperature is further improved, the average value of the first remaining water use time, the second remaining water use time and the third remaining water use time which are obtained by calculation when the drop amount of the water tank temperature reaches the preset third temperature threshold is used as the remaining water use time of the water tank after the drop of the water tank temperature reaches the third temperature threshold, and the accuracy of the remaining water use time of the electric water heater can be further improved.
In one embodiment, the calculating, according to the first remaining water usage time and the second remaining water usage time that are calculated when the accumulated decreasing amount of the tank temperature of the water tank reaches the preset second temperature threshold, the remaining water usage time after the decreasing of the tank temperature of the water tank by the second temperature threshold specifically includes:
and calculating the average value of the first residual water using time and the second residual water using time which are obtained when the accumulated water tank temperature drop amount of the water tank reaches the preset second temperature threshold value, and taking the average value as the residual water using time after the water tank temperature of the water tank drops the second temperature threshold value.
In one embodiment, the calculating, according to the first remaining water usage time, the second remaining water usage time, and the third remaining water usage time that are calculated when the accumulated decreasing amount of the tank temperature of the tank reaches the preset third temperature threshold, the remaining water usage time after each decreasing of the tank temperature of the tank reaches the third temperature threshold specifically includes:
and calculating the average value of the first remaining water time, the second remaining water time and the third remaining water time which are obtained when the accumulated water tank temperature drop amount of the water tank reaches the preset third temperature threshold value, and taking the average value as the remaining water time after the water tank temperature of the water tank drops the third temperature threshold value.
The first technical problem is solved by the following technical scheme:
a device for detecting the residual water using time of an electric water heater comprises:
the water flow data acquisition module is used for acquiring water flow data detected by a water flow sensor arranged in the water inlet pipeline in real time;
the water use state judging module is used for judging whether the electric water heater is in a water use state or not according to the water flow data;
the first data acquisition module is used for acquiring the water tank temperature sensed by a temperature probe arranged in the water tank in real time when the electric water heater is in a water using state, and clearing a first timer and starting timing;
the second data acquisition module is used for acquiring the current time of the first timer when the temperature drop of the water tank reaches a preset first temperature threshold value, recording the current time as a first water duration, and acquiring the current water tank temperature sensed by the temperature probe and recording the current water tank temperature as a first water tank temperature;
and the residual water time calculation module is used for calculating the residual water time of the electric water heater after the water tank temperature of the water tank is reduced by the first temperature threshold value according to a preset water outlet temperature threshold value, the first water using time and the first water tank temperature.
The first technical problem is solved by the following technical scheme:
an electric water heater remaining water usage time detection device comprises a processor, a memory and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to realize the electric water heater remaining water usage time detection method.
The first technical problem is solved by the following technical scheme:
a computer-readable storage medium, the computer-readable storage medium comprising a stored computer program, wherein when the computer program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the method for detecting the remaining water usage time of an electric water heater as described above.
Drawings
FIG. 1 is a flow chart of a method for detecting the remaining water usage time of an electric water heater according to a first embodiment of the present invention;
FIG. 2 is another flow chart of a method for detecting the remaining water usage time of an electric water heater according to the first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an electric water heater according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a remaining water usage time detecting device of an electric water heater according to a second embodiment of the present invention;
fig. 5 is a schematic block diagram of a remaining water usage time detecting apparatus of an electric water heater according to a third embodiment of the present invention.
Reference numerals are as follows:
1. the device comprises a power panel, 2, a water tank, 3, a heating pipe, 4, a temperature probe, 5, an outlet water temperature sensor, 6, a water flow sensor, 7, an inlet water temperature sensor, 8 and a control panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3, an electric water heater includes: the water heater comprises a power panel, a water tank, a heating pipe arranged in the water tank, at least one temperature probe, an outlet water temperature sensor arranged on a water outlet pipeline, a water flow sensor and an inlet water temperature sensor arranged on a water inlet pipeline, and a control panel electrically connected with the power panel, the temperature probe, the water flow sensor, the outlet water temperature sensor and the inlet water temperature sensor; the power panel is provided with a relay, and the relay is electrically connected with the heating pipe. The water flow sensor is used for detecting water flow out of the water outlet pipeline and outputting corresponding pulse signals or signals such as current and voltage to the control panel according to the detected water flow, and the control panel can judge the water outlet state of the electric water heater according to the received signals. The temperature probe is used for sensing the temperature of the water tank in the water tank; when the heating temperature is set by a user, the control panel starts the relay to control the heating tube to heat, the temperature of the water tank is obtained through the temperature probe, and when the temperature of the water tank of the electric water heater reaches the set heating temperature, the relay closes the electric heating tube, so that the heating process is completed.
Referring to fig. 1, based on the electric water heater, an embodiment of the invention provides a method for detecting remaining water usage time of an electric water heater, including the following steps:
s11: acquiring water flow data detected by a water flow sensor arranged in a water inlet pipeline in real time;
s12: judging whether the electric water heater is in a water using state or not according to the water flow data;
s13: when the electric water heater is in a water using state, acquiring the temperature of the water tank sensed by a temperature probe arranged in the water tank in real time, and simultaneously resetting a first timer and starting timing;
s14: when the water tank temperature drop of the water tank reaches a preset first temperature threshold value, acquiring the current time of the first timer, recording the current time as first water using duration, and acquiring the current water tank temperature sensed by the temperature probe and recording the current water tank temperature as first water tank temperature;
s15: and calculating the residual water using time of the electric water heater after the water tank temperature of the water tank is reduced by the first temperature threshold value according to a preset water outlet temperature threshold value, the first water using time and the first water tank temperature.
Further, before acquiring water flow data detected by a water flow sensor arranged in the water inlet pipeline in real time, the method further comprises the following steps:
s10: according to a preset heating temperature, a heating pipe arranged in the water tank is controlled to heat, and when the temperature of the water tank reaches the preset heating temperature, the heating pipe is controlled to stop heating.
In the embodiment of the invention, after the electric water heater finishes the heating process, the time of the temperature drop of the water tank and the timer is continuously detected in the process of using water by a user, and the residual water using time of the electric water heater is updated once after the first temperature threshold value is reduced, so that the influences of the volume deviation of the electric water heater, the deviation of the water inlet flow and the energy loss in the water mixing process can be effectively eliminated, and the residual water using time calculated by the method has high real-time performance and accuracy, so that more accurate time reminding can be provided for the user, and the comfort of the water storage type electric water heater is greatly improved; meanwhile, the method is suitable for electric water heaters of different models and has high universality.
In one embodiment, the calculating, according to a preset outlet water temperature threshold, the first water consumption time and the first water tank temperature, the remaining water consumption time of the electric water heater after the water tank temperature of the water tank drops by the first temperature threshold specifically includes:
calculating the residual water using time of the electric water heater according to a formula (1), and recording the residual water using time as a first residual water using time;
t＝(T i -T 1 )×t i (1)
wherein Ti is the temperature of the first water tank corresponding to the temperature drop of the water tank reaching a preset first temperature threshold value, T1 is a preset outlet water temperature threshold, and Ti is a first water using time length corresponding to the time when the temperature reduction amount of the water tank reaches a preset first temperature threshold.
Preferably, the preset outlet water temperature threshold is 38 ℃ and the first temperature threshold is 1 ℃. When the preset heating temperature is 75 ℃, the control panel starts the relay to control the heating tube to heat after the electric water heater is started, and the relay closes the electric heating tube after the water tank temperature of the electric water heater reaches the preset heating temperature, so that the heating process is completed. Then, judging whether the electric water heater is in a water using state or not by acquiring water flow data detected by a water flow sensor, acquiring the temperature of a water tank sensed by a temperature probe arranged in the water tank in real time when the electric water heater is in the water using state, and resetting a first timer and starting timing; at the temperature T of the water tank i When the temperature of the water tank is decreased by 1 ℃, obtaining the current water tank temperature, recording the first water tank temperature Ti, for example, when the temperature is decreased from 75 ℃ to 74 ℃, obtaining the current time of the first timer, recording the current time as a first water usage time Ti, for example, 4min, and then calculating the remaining water usage time t = (74-38) × 4=148min of the electric water heater after the water tank temperature of the water tank is decreased by 1 ℃. Then, during the continuous water use process, the temperature of the water tank is reduced by 1 ℃ from 74 ℃ for 2 minutes, so that the updated residual water use time is t = (73-38) × 2=70min.
In an optional embodiment, the method further comprises:
when the electric water heater is in a water using state, resetting the second timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset second temperature threshold value, acquiring the current time of the second timer, recording the current time as the second water use duration, and simultaneously acquiring the current water tank temperature sensed by the temperature probe, and recording the current water tank temperature as the second water tank temperature;
wherein the preset second temperature threshold is a multiple of the preset first temperature threshold;
calculating the residual water using time of the electric water heater according to a preset water outlet temperature threshold, the second water using time and the second water tank temperature, and recording the residual water using time as second residual water using time;
acquiring a first residual water using time calculated when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold;
and calculating the remaining water time of the water tank after the temperature of the water tank drops by the second temperature threshold according to the first remaining water time and the second remaining water time which are calculated when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold.
Compared with the background technology, the method for detecting the residual water using time of the electric water heater has the following beneficial effects:
by adding a multiple value of the first temperature threshold: the second temperature threshold is used as the time sampling frequency of the second timer, the sampling precision of the temperature is improved, the average value of the first remaining water using time and the second remaining water using time which are obtained by calculating when the accumulated temperature drop of the water tank reaches the preset second temperature threshold is used as the remaining water using time after the temperature of the water tank drops the second temperature threshold, and the accuracy of the remaining water using time of the electric water heater can be further improved.
In an optional embodiment, the method further comprises:
when the electric water heater is in a water using state, resetting the third timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset third temperature threshold value, acquiring the current time of the third timer, recording the current time as a third water supply time length, and simultaneously acquiring the current water tank temperature sensed by the temperature probe, and recording the current water tank temperature as a third water tank temperature;
the preset third temperature threshold is a multiple of the preset first temperature threshold and the preset second temperature threshold respectively;
calculating the residual water using time of the electric water heater according to a preset water outlet temperature threshold, the third water using time and the third water tank temperature, and recording the residual water using time as third residual water using time;
acquiring first remaining water use time and second remaining water use time which are obtained by calculation when the accumulated water tank temperature drop of the water tank reaches the preset third temperature threshold;
and calculating the first remaining water using time, the second remaining water using time and the third remaining water using time which are obtained by calculating when the accumulated water tank temperature drop of the water tank reaches the preset third temperature threshold, and calculating the remaining water using time of the water tank temperature of the water tank after the water tank temperature of the water tank drops the third temperature threshold.
Compared with the background technology, the method for detecting the residual water using time of the electric water heater has the following beneficial effects:
further by adding a multiple value of the first temperature threshold and the second temperature threshold: the third temperature threshold is used as the time sampling frequency of a third timer of the timer, the sampling precision of the temperature is further improved, the average value of the first remaining water using time, the second remaining water using time and the third remaining water using time which are obtained by calculation when the accumulated quantity of the temperature decrease of the water tank reaches the preset third temperature threshold is used as the remaining water using time after the temperature of the water tank decreases by the third temperature threshold, and the accuracy of the remaining water using time of the electric water heater can be further improved.
In one embodiment, the calculating, according to the first remaining water usage time and the second remaining water usage time that are calculated when the accumulated decreasing amount of the tank temperature of the water tank reaches the preset second temperature threshold, the remaining water usage time after the decreasing of the tank temperature of the water tank by the second temperature threshold specifically includes:
and calculating the average value of the first residual water using time and the second residual water using time which are obtained when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold, and taking the average value as the residual water using time after the water tank temperature of the water tank drops the second temperature threshold.
In one embodiment, the calculating, according to a first remaining water time, a second remaining water time, and a third remaining water time that are calculated when the accumulated decreasing amount of the tank temperature of the water tank reaches the preset third temperature threshold, a remaining water time after the tank temperature of the water tank decreases by the third temperature threshold specifically includes:
and calculating the average value of the first remaining water time, the second remaining water time and the third remaining water time which are obtained when the accumulated water tank temperature drop amount of the water tank reaches the preset third temperature threshold value, and taking the average value as the remaining water time after the water tank temperature of the water tank drops the third temperature threshold value.
In the embodiment of the present invention, the preset second temperature threshold is 2 ℃, and the preset third temperature threshold is 4 ℃. The formula T = (T) is also used i -T 1 )×t i Respectively calculating the residual water time after the temperature of the water tank drops by the second temperature threshold and the third temperature threshold, wherein the formula (1) can be modified into T = ((Tx-1) -T 1 )×t i Wherein, T i And = Tx-Tm, wherein Tx is the initial water tank temperature obtained when the water heater is determined to be in a water using state, tm is the preset first temperature threshold, the preset second temperature threshold or the preset third temperature threshold, and the remaining water using time is obtained as shown in the following table:
it should be noted that when the drop amount of the water tank temperature reaches the first temperature threshold, the second temperature threshold or the third temperature threshold, the corresponding first timer, the second timer and the third timer are correspondingly cleared to be re-timed, or the same timer may be used to record time for each drop of the water tank temperature at the first temperature threshold, and the duration of the time period corresponding to each drop of the first temperature threshold, the second temperature threshold or the third temperature threshold is intercepted as the water usage time.
It can be understood that after the temperature of the water tank is reduced by 1 ℃, the residual water using time is 360min, after the temperature of the water tank is reduced by 2 ℃, the residual water using time is 245min, after the temperature of the water tank is reduced by 3 ℃, the residual water using time is 170min, after the temperature of the water tank is reduced by 4 ℃, the residual water using time is 162.25min, and by analogy, the temperature reduction of 1 ℃ is recorded, and meanwhile, the temperature reduction time of 2 ℃ or 4 ℃ or an integer multiple of 2 is increased, so as to comprehensively correct the result of the residual water using time, the accuracy of the calculation result can be improved to the maximum, and the whole residual water using time detection flow is shown in fig. 2.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
after the electric water heater finishes the heating process, in the process of using water by a user, the time of temperature drop of the water tank and the time of the timer are continuously detected, and after the first temperature threshold value is reduced, the residual water using time of the electric water heater is updated once, so that the influences of volume deviation of the electric water heater, deviation of water inlet flow and energy loss in the water mixing process can be effectively eliminated, and the residual water using time calculated by the method is high in real-time and accuracy, so that more accurate time reminding can be provided for the user, and the comfort of the water storage type electric water heater is greatly improved; meanwhile, the method is suitable for electric water heaters of different models and has high universality.
Referring to fig. 4, an embodiment of the present invention further provides a device for detecting remaining water usage time of an electric water heater, including:
the water flow data acquisition module 1 is used for acquiring water flow data detected by a water flow sensor arranged in the water inlet pipeline in real time;
the water use state judging module 2 is used for judging whether the electric water heater is in a water use state or not according to the water flow data;
the first data acquisition module 3 is used for acquiring the water tank temperature sensed by a temperature probe arranged in the water tank in real time when the electric water heater is in a water using state, and clearing a first timer and starting timing;
the second data acquisition module 4 is configured to acquire the current time of the first timer when the water tank temperature decrease amount of the water tank reaches a preset first temperature threshold, record the current time as a first water consumption duration, and acquire the current water tank temperature sensed by the temperature probe and record the current water tank temperature as a first water tank temperature;
and the first remaining water use time calculation module 5 is configured to calculate the remaining water use time of the electric water heater after the water tank temperature of the water tank decreases by the first temperature threshold according to a preset outlet water temperature threshold, the first water use time and the first water tank temperature.
In an alternative embodiment, the apparatus further comprises:
and the heating pipe heating control module is used for controlling the heating pipe arranged in the water tank to heat according to a preset heating temperature and controlling the heating pipe to stop heating when the temperature of the water tank reaches the preset heating temperature.
In an optional embodiment, the first remaining water usage time calculation module is configured to calculate the remaining water usage time of the electric water heater according to formula (1), and record the remaining water usage time as the first remaining water usage time;
t＝(T i -T 1 )×t i (1)
wherein Ti is the temperature of the first water tank corresponding to the temperature drop of the water tank reaching a preset first temperature threshold value, T1 is a preset outlet water temperature threshold, and Ti is a first water using time length corresponding to the time when the temperature reduction amount of the water tank reaches a preset first temperature threshold.
In an alternative embodiment, the apparatus further comprises:
the first timer control module is used for resetting the second timer and starting timing when the electric water heater is in a water using state;
the third data acquisition module is used for acquiring the current time of the second timer when the water tank temperature drop of the water tank reaches a preset second temperature threshold value, recording the current time as a second water use duration, and acquiring the current water tank temperature sensed by the temperature probe and recording the current water tank temperature as a second water tank temperature;
wherein the preset second temperature threshold is a multiple of the preset first temperature threshold;
the second remaining water use time calculation module is used for calculating the remaining water use time of the electric water heater according to a preset water outlet temperature threshold, the second water use time and the second water tank temperature and recording the remaining water use time as second remaining water use time;
the fourth data acquisition module is used for acquiring first residual water using time calculated when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold;
and the third remaining water use time calculation module is used for calculating the remaining water use time of the water tank after the water tank temperature of the water tank drops by the second temperature threshold according to the first remaining water use time and the second remaining water use time which are obtained by calculation when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold.
In an alternative embodiment, the apparatus further comprises:
the second timer control module is used for resetting the third timer and starting timing when the electric water heater is in a water using state;
the fifth data acquisition module is used for acquiring the current time of the third timer when the water tank temperature drop of the water tank reaches a preset third temperature threshold value, recording the current time as a third water supply time length, and acquiring the current water tank temperature sensed by the temperature probe and recording the current water tank temperature as a third water tank temperature;
the preset third temperature threshold is a multiple of the preset first temperature threshold and the preset second temperature threshold respectively;
the fourth residual water using time calculating module is used for calculating the residual water using time of the electric water heater according to a preset water outlet temperature threshold, the third water using time and the third water tank temperature and recording the residual water using time as third residual water using time;
a sixth data obtaining module, configured to obtain a first remaining water usage time and a second remaining water usage time that are obtained by calculation when an accumulated amount of temperature decrease of the water tank reaches the preset third temperature threshold;
and the fifth remaining water use time calculating module is used for calculating the remaining water use time of the water tank after the water tank temperature of the water tank drops by the third temperature threshold according to the first remaining water use time, the second remaining water use time and the third remaining water use time which are obtained by calculation when the accumulated water tank temperature drop of the water tank reaches the preset third temperature threshold.
In an optional embodiment, the third remaining water usage time calculation module is configured to calculate an average value of the first remaining water usage time and the second remaining water usage time, which is obtained by calculation when the accumulated tank temperature drop amount of the water tank reaches the preset second temperature threshold, and use the average value as the remaining water usage time after the tank temperature of the water tank drops the second temperature threshold.
In an optional embodiment, the fifth remaining water time calculating module is configured to calculate an average value of the first remaining water time, the second remaining water time and the third remaining water time, which are calculated when the accumulated tank temperature decrease amount of the water tank reaches the preset third temperature threshold, as the remaining water time after the tank temperature of the water tank decreases by the third temperature threshold.
It should be noted that the above-described embodiments of the apparatus are merely illustrative, where the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
Referring to fig. 5, it is a schematic diagram of a remaining water usage time detection device of an electric water heater according to a third embodiment of the present invention. As shown in fig. 5, the remaining water usage time detecting apparatus of the electric water heater includes: at least one processor 11, such as a CPU, at least one network interface 14 or other user interface 13, a memory 15, at least one communication bus 12, the communication bus 12 for enabling connectivity communication between these components. The user interface 13 may optionally include a USB interface, and other standard interfaces, wired interfaces. The network interface 14 may optionally include a Wi-Fi interface as well as other wireless interfaces. The memory 15 may comprise a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 15 may optionally comprise at least one memory device located remotely from the aforementioned processor 11.
In some embodiments, memory 15 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof:
an operating system 151, which contains various system programs for implementing various basic services and for processing hardware-based tasks;
and a program 152.
Specifically, the processor 11 is configured to call the program 152 stored in the memory 15, and execute the remaining water usage time detection method of the electric water heater according to the above embodiment, for example, step S11 shown in fig. 1. Alternatively, the processor, when executing the computer program, implements the functions of the modules/units in the above-mentioned device embodiments, such as the water flow data acquisition module.
Illustratively, the computer program may be partitioned into one or more modules/units, stored in the memory and executed by the processor, to implement the invention. The one or more modules/units may be a series of instruction segments of a computer program capable of performing specific functions, the instruction segments being used for describing the execution process of the computer program in the remaining water usage time detection device of the electric water heater.
The residual water using time detection device of the electric water heater can be a desktop computer, a notebook computer, a palm computer, a cloud server and other computing devices. The remaining water usage time detection device of the electric water heater can include, but is not limited to, a processor and a memory. It will be understood by those skilled in the art that the schematic diagram is merely an example of a remaining water usage time detection device for an electric water heater, and does not constitute a limitation on the remaining water usage time detection device for an electric water heater, and may include more or less components than those shown, or some components may be combined, or different components may be included.
The Processor 11 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general processor can be a microprocessor or the processor can be any conventional processor, etc., and the processor 11 is a control center of the remaining water usage time detection device of the electric water heater, and various interfaces and lines are used for connecting various parts of the remaining water usage time detection device of the whole electric water heater.
The memory 15 can be used to store the computer programs and/or modules, and the processor 11 implements various functions of the remaining water usage time detection device of the electric water heater by running or executing the computer programs and/or modules stored in the memory and calling the data stored in the memory. The memory 15 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 15 may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
The module/unit integrated with the remaining water usage time detection device of the electric water heater can be stored in a computer readable storage medium if the module/unit is implemented in the form of a software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, read-Only Memory (ROM), random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
A fourth embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium includes a stored computer program, and when the computer program runs, the apparatus where the computer-readable storage medium is located is controlled to execute the method for detecting remaining water usage time of an electric water heater according to the first embodiment.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (9)
1. A method for detecting the residual water using time of an electric water heater is characterized by comprising the following steps:
acquiring water flow data detected by a water flow sensor arranged in a water inlet pipeline in real time;
judging whether the electric water heater is in a water using state or not according to the water flow data;
when the electric water heater is in a water using state, acquiring the temperature of the water tank sensed by a temperature probe arranged in the water tank in real time, and simultaneously resetting a first timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset first temperature threshold value, acquiring the current time of the first timer, recording the current time as first water using time, and acquiring the current water tank temperature sensed by the temperature probe, and recording the current water tank temperature as first water tank temperature;
calculating the remaining water using time of the electric water heater after the water tank temperature of the water tank is reduced by the first temperature threshold according to a preset water outlet temperature threshold, the first water using time and the first water tank temperature;
calculating the residual water using time of the electric water heater according to a formula (1), and recording the residual water using time as a first residual water using time;
t＝(T i -T 1 )×t i (1)
wherein, T i The corresponding first water tank temperature T when the temperature drop of the water tank reaches a preset first temperature threshold value 1 Is a preset outlet water temperature threshold value t i And the corresponding first water consumption time when the temperature drop of the water tank reaches a preset first temperature threshold value.
2. The method for detecting the remaining water usage time of an electric water heater according to claim 1, wherein before the real-time obtaining of the water flow data detected by the water flow sensor disposed in the water inlet pipe, the method further comprises:
according to a preset heating temperature, a heating pipe arranged in the water tank is controlled to heat, and when the temperature of the water tank reaches the preset heating temperature, the heating pipe is controlled to stop heating.
3. The method for detecting the remaining water usage time of an electric water heater as claimed in claim 1, wherein the method further comprises:
when the electric water heater is in a water using state, resetting the second timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset second temperature threshold value, acquiring the current time of the second timer, recording the current time as the second water use duration, and simultaneously acquiring the current water tank temperature sensed by the temperature probe, and recording the current water tank temperature as the second water tank temperature;
wherein the preset second temperature threshold is a multiple of the preset first temperature threshold;
calculating the residual water using time of the electric water heater according to a preset water outlet temperature threshold, the second water using time and the second water tank temperature, and recording the residual water using time as second residual water using time;
acquiring a first residual water using time calculated when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold;
and calculating the remaining water time of the water tank after the temperature of the water tank drops by the second temperature threshold according to the first remaining water time and the second remaining water time which are calculated when the accumulated water tank temperature drop of the water tank reaches the preset second temperature threshold.
4. The method for detecting the remaining water usage time of an electric water heater as claimed in claim 3, further comprising:
when the electric water heater is in a water using state, resetting the third timer and starting timing;
when the water tank temperature drop of the water tank reaches a preset third temperature threshold value, acquiring the current time of the third timer, recording the current time as a third water supply time length, and simultaneously acquiring the current water tank temperature sensed by the temperature probe, and recording the current water tank temperature as a third water tank temperature;
the preset third temperature threshold is a multiple of the preset first temperature threshold and the preset second temperature threshold respectively;
calculating the residual water using time of the electric water heater according to a preset water outlet temperature threshold, the third water using time and the third water tank temperature, and recording the residual water using time as third residual water using time;
acquiring first remaining water use time and second remaining water use time which are obtained by calculation when the accumulated water tank temperature drop of the water tank reaches the preset third temperature threshold;
and calculating the first remaining water time, the second remaining water time and the third remaining water time which are obtained by calculation when the accumulated water tank temperature drop of the water tank reaches the preset third temperature threshold, and calculating the remaining water time of the water tank after the water tank temperature of the water tank drops the third temperature threshold.
5. The method for detecting remaining water usage time of an electric water heater according to claim 3, wherein the calculating, according to the first remaining water usage time and the second remaining water usage time, the remaining water usage time after the tank temperature of the water tank decreases by the second temperature threshold value, includes:
and calculating the average value of the first residual water using time and the second residual water using time which are obtained when the accumulated water tank temperature drop amount of the water tank reaches the preset second temperature threshold value, and taking the average value as the residual water using time after the water tank temperature of the water tank drops the second temperature threshold value.
6. The method for detecting remaining water time of an electric water heater according to claim 4, wherein the step of calculating the remaining water time after the tank temperature of the water tank drops by the third temperature threshold according to the first remaining water time, the second remaining water time and the third remaining water time calculated when the accumulated drop amount of the tank temperature of the water tank reaches the preset third temperature threshold specifically comprises:
and calculating the average value of the first remaining water time, the second remaining water time and the third remaining water time which are obtained when the accumulated water tank temperature drop amount of the water tank reaches the preset third temperature threshold value, and taking the average value as the remaining water time after the water tank temperature of the water tank drops the third temperature threshold value.
7. The utility model provides an electric water heater residual water time detection device which characterized in that includes:
the water flow data acquisition module is used for acquiring water flow data detected by a water flow sensor arranged in the water inlet pipeline in real time;
the water use state judging module is used for judging whether the electric water heater is in a water use state or not according to the water flow data;
the first data acquisition module is used for acquiring the water tank temperature sensed by a temperature probe arranged in the water tank in real time when the electric water heater is in a water using state, and clearing a first timer and starting timing;
the second data acquisition module is used for acquiring the current time of the first timer when the temperature reduction amount of the water tank reaches a preset first temperature threshold value, recording the current time as a first water using duration, and acquiring the current water tank temperature sensed by the temperature probe and recording the current water tank temperature as the first water tank temperature;
the residual water time calculation module is used for calculating the residual water time of the electric water heater after the temperature of the water tank is reduced by the first temperature threshold according to a preset water outlet temperature threshold, the first water using time and the first water tank temperature;
calculating the residual water using time of the electric water heater according to a formula (1), and recording the residual water using time as a first residual water using time;
t＝(T i -T 1 )×t i (1)
wherein, T i The corresponding first water tank temperature T when the temperature drop of the water tank reaches a preset first temperature threshold value 1 Is a preset outlet water temperature threshold value t i The first water consumption duration corresponding to the time when the temperature drop of the water tank reaches a preset first temperature threshold value is set.
8. An apparatus for detecting remaining water usage time of an electric water heater, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor executes the computer program to implement the method for detecting remaining water usage time of an electric water heater according to any one of claims 1 to 6.
9. A computer-readable storage medium, comprising a stored computer program, wherein when the computer program runs, the computer-readable storage medium is controlled to implement the method for detecting the remaining water usage time of an electric water heater according to any one of claims 1 to 6.
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| KR20230039357A (en) * | 2021-09-14 | 2023-03-21 | 코웨이 주식회사 | Water purifier |
| CN114704959B (en) * | 2022-03-29 | 2023-07-18 | 广东纽恩泰新能源科技发展有限公司 | Variable-frequency heat pump water heater control method and device, electronic equipment and storage medium |
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