CN112842075A - Liquid level detection method and device, storage medium and kettle - Google Patents
Liquid level detection method and device, storage medium and kettle Download PDFInfo
- Publication number
- CN112842075A CN112842075A CN202110038957.5A CN202110038957A CN112842075A CN 112842075 A CN112842075 A CN 112842075A CN 202110038957 A CN202110038957 A CN 202110038957A CN 112842075 A CN112842075 A CN 112842075A
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- Prior art keywords
- liquid level
- water
- detection
- voltage
- water adding
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21166—Constructional details or accessories
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J2203/00—Devices having filling level indicating means
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Cookers (AREA)
Abstract
The invention discloses a liquid level detection method, a liquid level detection device, a storage medium and a kettle, wherein the liquid level detection method comprises the following steps: reading the number of drinking people signals input by a user and the recorded water adding flow; calculating a time threshold according to the recorded water adding flow and the number of drinking people signals; and adding water and controlling the water adding time according to the time threshold. The liquid level detection method controls the water adding amount according to the number of people drinking water, and saves water resources.
Description
Technical Field
The invention belongs to the field of liquid level monitoring, and particularly relates to a liquid level detection method and device, a storage medium and a kettle.
Background
The existing electric kettle comprises a base and a kettle body, wherein the base and the kettle body are connected through a coupler, and a water level probe is arranged in the kettle. The water level detection is mainly realized by setting a fixed water level probe threshold value, and when water in the kettle is over the probe, the water level is considered to reach, and the water adding is stopped. Some electric kettles have different water adding quantity requirements, such as 1 part of people, 3 parts of people, 6 parts of people and the like, the water inlet end of the electric kettle can be connected with a water purifying device, and the water adding flow of the water purifying device has uncertainty.
Disclosure of Invention
The invention aims to provide a liquid level detection method, a liquid level detection device, a storage medium and a kettle, which aim to solve the problem of adding water by persons.
In order to achieve the purpose, the specific technical scheme of the liquid level detection method, the liquid level detection device, the storage medium and the kettle is as follows:
a liquid level detection method comprising:
reading the number of drinking people signals input by a user and the recorded water adding flow;
calculating a time threshold according to the recorded water adding flow and the number of drinking people signals;
and adding water and controlling the water adding time according to the time threshold.
Further, the liquid level detection method further comprises the following steps:
in the water adding process, detecting the liquid level voltage of detection points at all heights;
recording time nodes when the liquid level reaches each detection point according to the liquid level voltage of the detection points;
and calculating and recording the current water adding flow according to the time difference of reaching the adjacent detection points.
Further, recording time nodes when the liquid level reaches each detection point according to the liquid level voltage of the detection points, comprising:
judging whether the voltage sudden change value in the detection period meets the recording condition or not according to the current liquid level voltage;
and if the voltage mutation value meets the recording condition, recording the time node when the liquid level reaches each detection point.
Further, the liquid level detection method further comprises the following steps:
before adding water, acquiring the current liquid level voltage of each detection point;
comparing the current liquid level voltage with a voltage threshold value, and judging the liquid level state;
in the water adding process, only the time node of the detection point of which the liquid level state is water shortage is recorded.
Further, if the voltage jump value meets the recording condition, adjusting a corresponding voltage threshold value according to the current liquid level voltage;
and judging the liquid level state according to the adjusted voltage threshold value.
Further, calculating and recording the current water adding flow according to the time difference reaching the adjacent detection points, comprising the following steps:
calculating the time difference reaching the adjacent detection points according to the time nodes of the detection points;
and calculating the current water adding flow according to the preset container capacity and the time difference.
A liquid level detection device comprising:
the reading module is used for reading the number of drinking people signals input by the user and the recorded water adding flow;
the first calculation module is used for calculating a time threshold value according to the recorded water adding flow and drinking water number signals;
and the control module is used for adding water and controlling the water adding time according to the time threshold.
Further, the liquid level detection device still includes:
the detection module is used for detecting the liquid level voltage of detection points at all heights in the water adding process;
the recording module is used for recording time nodes when the liquid level reaches each detection point according to the liquid level voltage of the detection points;
and the second calculation module is used for calculating and recording the current water adding flow according to the time difference of reaching the adjacent detection points.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
A kettle comprises a controller, and the steps of the liquid level detection method are realized when the controller executes the program.
The liquid level detection method, the liquid level detection device, the storage medium and the kettle have the following advantages: under the condition of not adding a water adding flow detection device, the dynamic change conditions of high and low water level threshold values and water adding time are obtained through a water level probe mutation detection principle, and the problem that water is not accurately added to water in water quantities of multiple people is solved.
Drawings
FIG. 1 is a flow chart of a liquid level detection method of the present invention;
FIG. 2 is a block diagram of the liquid level detection apparatus of the present invention.
Detailed Description
In order to better understand the purpose, structure and function of the present invention, a liquid level detecting method, a liquid level detecting device, a storage medium and a kettle according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the liquid level detection method of the present invention includes:
s1, reading a drinking water number signal input by a user and the recorded water adding flow;
s2, calculating a time threshold according to the recorded water adding flow and drinking water number signals;
and S3, adding water and controlling the water adding time according to the time threshold.
The liquid level detection method of the invention further comprises the following steps:
in the water adding process, detecting the liquid level voltage of detection points at all heights;
recording time nodes when the liquid level reaches each detection point according to the liquid level voltage of the detection points;
and calculating and recording the current water adding flow according to the time difference of reaching the adjacent detection points.
Therefore, the water adding flow of the water adding is updated in real time, and the water adding accuracy is ensured. The change of the water outlet and adding flow caused by the different models and the service life of the water purifier is prevented.
Wherein, according to the liquid level voltage of check point, the time node of record liquid level arrival each check point includes:
judging whether the voltage sudden change value in the detection period meets the recording condition or not according to the current liquid level voltage;
and if the voltage mutation value meets the recording condition, recording the time node when the liquid level reaches each detection point.
And if the voltage mutation value does not meet the recording condition, continuing adding water until the recording condition is met.
And meanwhile, when the voltage mutation value of the high water level probe meets the recording condition, stopping adding water.
The liquid level detection method of the invention further comprises the following steps:
before adding water, acquiring the current liquid level voltage of each detection point;
comparing the current liquid level voltage with a voltage threshold value, and judging the liquid level state;
in the water adding process, only the time node of the detection point of which the liquid level state is water shortage is recorded.
In particular, it is possible to describe,
when the liquid level voltage is greater than or equal to the voltage threshold value, judging that water exists;
and when the liquid level voltage is smaller than the voltage threshold value, judging that water is deficient.
If the voltage mutation value meets the recording condition, adjusting a corresponding voltage threshold value according to the current liquid level voltage;
and judging the liquid level state according to the adjusted voltage threshold value.
For example, the program continuously stores the latest 4 water level voltage values U1, U2, U3 and U4. The voltage jump value is typically 1.2V. Therefore, when U4-U1 > 1.2V, it is judged that the mutation condition is satisfied, and U4 is assigned to Un. Un is the current level voltage that meets the regulation condition. And the current liquid level voltage which finally meets the regulation condition is Un through the repeated and cyclic regulation of the voltage threshold, namely after the voltage mutation occurs, the final stable liquid level voltage is Un. Setting the Uthreshold value as Un-delta U, thereby obtaining the voltage threshold value Uthreshold value.
In essence, in the process of adding water, the voltage sudden change is taken as the standard for detecting the liquid level state (water existence or no water existence); and when no water is added, the voltage threshold value adjusted according to the voltage abrupt change is taken as the standard of the liquid level state. Therefore, the interference of interference factors such as TDS value of water, hanging water and the like on the probe is eliminated.
Wherein, calculate and record the current flow of adding water according to the time difference that reaches the adjacent check point, include:
calculating the time difference reaching the adjacent detection points according to the time nodes of the detection points;
and calculating the current water adding flow according to the preset container capacity and the time difference.
As shown in fig. 2, the liquid level detection apparatus of the present invention includes:
the reading module 1 is used for reading the number of drinking people signals input by a user and the recorded water adding flow;
the first calculating module 2 is used for calculating a time threshold according to the recorded water adding flow and drinking people number signals;
and the control module 3 is used for adding water and controlling the water adding time according to the time threshold.
The liquid level detection device of the present invention further comprises:
the detection module is used for detecting the liquid level voltage of detection points at all heights in the water adding process;
the recording module is used for recording time nodes when the liquid level reaches each detection point according to the liquid level voltage of the detection points;
and the second calculation module is used for calculating and recording the current water adding flow according to the time difference of reaching the adjacent detection points.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method as described above.
The water kettle provided by the embodiment of the invention comprises a controller and a liquid level probe. Wherein, the liquid level probe is used for detecting the liquid level voltage in the kettle. And the controller is used for implementing the steps of the liquid level detection method when executing the program.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A liquid level detection method, comprising:
reading the number of drinking people signals input by a user and the recorded water adding flow;
calculating a time threshold according to the recorded water adding flow and the number of drinking people signals;
and adding water and controlling the water adding time according to the time threshold.
2. The method of claim 1, further comprising:
in the water adding process, detecting the liquid level voltage of detection points at all heights;
recording time nodes when the liquid level reaches each detection point according to the liquid level voltage of the detection points;
and calculating and recording the current water adding flow according to the time difference of reaching the adjacent detection points.
3. The method of claim 2, wherein recording the time node at which the liquid level reaches each of the detection points based on the liquid level voltages at the detection points comprises:
judging whether the voltage sudden change value in the detection period meets the recording condition or not according to the current liquid level voltage;
and if the voltage mutation value meets the recording condition, recording the time node when the liquid level reaches each detection point.
4. The method of claim 3, further comprising:
before adding water, acquiring the current liquid level voltage of each detection point;
comparing the current liquid level voltage with a voltage threshold value, and judging the liquid level state;
in the water adding process, only the time node of the detection point of which the liquid level state is water shortage is recorded.
5. The method of claim 4,
if the voltage mutation value meets the recording condition, adjusting a corresponding voltage threshold value according to the current liquid level voltage;
and judging the liquid level state according to the adjusted voltage threshold value.
6. The method for detecting the liquid level according to claim 2, wherein calculating and recording the current water adding flow rate according to the time difference of reaching the adjacent detection points comprises the following steps:
calculating the time difference reaching the adjacent detection points according to the time nodes of the detection points;
and calculating the current water adding flow according to the preset container capacity and the time difference.
7. A liquid level detection device, comprising:
the reading module is used for reading the number of drinking people signals input by the user and the recorded water adding flow;
the first calculation module is used for calculating a time threshold value according to the recorded water adding flow and drinking water number signals;
and the control module is used for adding water and controlling the water adding time according to the time threshold.
8. The fluid level detection apparatus of claim 7, further comprising:
the detection module is used for detecting the liquid level voltage of detection points at all heights in the water adding process;
the recording module is used for recording time nodes when the liquid level reaches each detection point according to the liquid level voltage of the detection points;
and the second calculation module is used for calculating and recording the current water adding flow according to the time difference of reaching the adjacent detection points.
9. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the steps of the method for liquid level detection according to any one of claims 1-6.
10. A kettle comprising a controller, wherein the controller executes said program to perform the steps of the method of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038957.5A CN112842075A (en) | 2021-01-12 | 2021-01-12 | Liquid level detection method and device, storage medium and kettle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110038957.5A CN112842075A (en) | 2021-01-12 | 2021-01-12 | Liquid level detection method and device, storage medium and kettle |
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| Publication Number | Publication Date |
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| CN112842075A true CN112842075A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110038957.5A Pending CN112842075A (en) | 2021-01-12 | 2021-01-12 | Liquid level detection method and device, storage medium and kettle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559589A (en) * | 2021-08-03 | 2021-10-29 | 上海同臣环保有限公司 | Method for optimizing filter cloth use of filter tank by adding water inlet valve positioner |
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| CN103841864A (en) * | 2011-07-01 | 2014-06-04 | 布瑞威利私人有限公司 | Method and apparatus for water level sensing |
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Application publication date: 20210528 |
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