CN112857515A - Liquid level detection method and device, storage medium and kettle - Google Patents
Liquid level detection method and device, storage medium and kettle Download PDFInfo
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- CN112857515A CN112857515A CN202110038844.5A CN202110038844A CN112857515A CN 112857515 A CN112857515 A CN 112857515A CN 202110038844 A CN202110038844 A CN 202110038844A CN 112857515 A CN112857515 A CN 112857515A
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- voltage
- liquid level
- temperature
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- 239000007788 liquid Substances 0.000 title claims abstract description 118
- 238000001514 detection method Methods 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000000523 sample Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 12
- 230000035772 mutation Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims 3
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000004422 calculation algorithm Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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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
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
-
- 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
-
- 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
- A47J2202/00—Devices having temperature indicating means
-
- 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
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 is used for acquiring the current liquid level voltage and the current liquid temperature; matching corresponding compensation voltage according to the current liquid temperature; compensating the liquid level voltage through compensation voltage, eliminating errors generated by liquid TDS value due to temperature change, and obtaining actual voltage; and comparing the actual voltage with a voltage threshold value, and judging the liquid level state. According to the liquid level detection method, voltage is compensated according to the temperature of the liquid, so that the phenomenon that the water level is misjudged due to the fact that high-temperature water vapor is attached to the sealing ring to enable the kettle wall to be in virtual conduction with the probe is avoided.
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
Most of electric kettles with liquid level detection function use probe type liquid level detection, the voltage of a liquid level signal is related to the TDS value of water, and the TDS value of the water is related to the temperature. If the liquid level threshold is set to a certain fixed threshold, when the threshold is set to be too high, the water state under low temperature can not reach the corresponding threshold voltage; when the threshold value is set to be too low, a lot of water vapor is in the kettle body at high temperature, the kettle wall and the probe are conducted in a virtual mode under the water-free state due to the water vapor in the kettle body, and the water is judged to be water easily and the water is not burnt easily.
Disclosure of Invention
The invention aims to provide a liquid level detection method, a liquid level detection device, a storage medium and a kettle, and aims to solve the problem of water level caused by virtual conduction between a kettle wall and a probe due to attachment of high-temperature water vapor to a sealing ring.
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:
acquiring current liquid level voltage and current liquid temperature;
matching corresponding compensation voltage according to the current liquid temperature;
compensating the liquid level voltage through compensation voltage, eliminating errors generated by liquid TDS value due to temperature change, and obtaining actual voltage;
and comparing the actual voltage with a voltage threshold value, and judging the liquid level state.
Further, matching the corresponding compensation voltage according to the current liquid temperature includes:
and calculating the temperature difference between the liquid temperature and the standard temperature, and matching the corresponding compensation voltage according to the temperature difference.
Further, compare actual voltage and voltage threshold, judge the liquid level state, include:
when the actual voltage is greater than or equal to the voltage threshold, judging that water exists;
and when the actual voltage is smaller than the voltage threshold, judging that water is short, and adding water.
Further, the liquid level detection method further comprises the following steps:
judging whether the voltage sudden change value in the detection period meets the adjustment condition or not according to the current liquid level voltage;
if the voltage mutation value meets the adjustment 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, adjusting the corresponding voltage threshold according to the current liquid level voltage includes:
and (4) eliminating a return difference value of the current liquid level voltage with the voltage mutation value meeting the adjustment condition to obtain a voltage threshold value.
A liquid level detection device comprising:
the detection module is used for detecting the current liquid level voltage and the current liquid temperature;
the matching module is used for matching the corresponding compensation voltage according to the current liquid temperature;
the calculation module compensates the liquid level voltage through the compensation voltage to obtain an actual voltage;
and the control module compares the actual voltage with the voltage threshold value and judges the liquid level state.
Further, the liquid level detection device still includes:
and the judging module is used for judging whether the voltage mutation value in the detection period meets the adjustment condition or not according to the current liquid level voltage.
Further, when the voltage jump value meets the adjustment condition, the calculation module adjusts the corresponding voltage threshold according to the current liquid level voltage and the return difference value.
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 liquid level detection method.
A kettle comprises a controller, a liquid level probe and a temperature sensing bulb, wherein the controller executes the program to realize the steps of the liquid level detection method.
The liquid level detection method, the liquid level detection device, the storage medium and the kettle have the following advantages: the water level voltage is suddenly changed when the water level of the added water is submerged through the probe, the voltage threshold value is updated according to the current water level voltage when the adjusting condition is met, the size of the water level voltage value is detected in real time, the internal temperature of the kettle body is detected by combining the temperature sensing bulb, temperature compensation is carried out through an algorithm, the actual voltage value after compensation is compared with the threshold value, and the problem that the water level misjudgment is caused due to the fact that high-temperature water vapor is attached to the sealing ring to enable the kettle wall to be in virtual conduction with the.
Drawings
FIG. 1 is a flow chart of a liquid level detection method of the present invention;
FIG. 2 is a schematic view 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, acquiring the current liquid level voltage and the current liquid temperature;
s2, matching corresponding compensation voltage according to the current liquid temperature;
s3, compensating the liquid level voltage through the compensation voltage, and eliminating errors generated by TDS values of the liquid due to temperature changes to obtain actual voltage;
and S4, comparing the actual voltage with the voltage threshold value, and judging the liquid level state.
Wherein, according to the corresponding compensation voltage of present liquid temperature matching, include: and calculating the temperature difference between the liquid temperature and the standard temperature, and matching the corresponding compensation voltage according to the temperature difference.
The compensation voltage was obtained from experimental results and large data, and since the laboratory environment was generally maintained at 25 ℃, the standard temperature was 25 ℃.
When the temperature difference is 0-15 ℃, the compensation voltage is 0.1V;
when the temperature difference is 15-35 ℃, the compensation voltage is 0.25V;
when the temperature difference is 35-55 ℃, the compensation voltage is 0.45V;
when the temperature difference is more than 55 ℃, the compensation voltage is 0.6V.
The compensation voltage, its size can be adjusted according to the actual test condition, also is relevant with the size, the leakproofness of sealing washer, therefore above-mentioned value all is experimental sample kettle and detects and draw.
Wherein, the liquid level state is judged to contrast actual voltage and voltage threshold, include:
when the actual voltage is greater than or equal to the voltage threshold, judging that water exists;
when the actual voltage is smaller than the voltage threshold, water shortage is judged, a water pump is started to add water, and dry burning is prevented.
The voltage threshold is divided into a fixed value and a dynamic value according to different products. When the voltage threshold is a fixed value, the comparison is performed directly, and the prior art is adopted, which is not described in detail in this embodiment. When the voltage threshold is a dynamic value, the liquid level detection method further comprises a threshold dynamic adjusting method.
The dynamic threshold adjusting method comprises the following steps:
judging whether the voltage sudden change value in the detection period meets the adjustment condition or not according to the current liquid level voltage;
if the voltage mutation value meets the adjustment 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.
Adjusting the corresponding voltage threshold according to the current liquid level voltage, including: and (4) eliminating a return difference value of the current liquid level voltage with the voltage mutation value meeting the adjustment condition to obtain a voltage threshold value.
And the return difference value is used for eliminating errors caused by liquid level fluctuation and the like. The size of the algorithm can be adjusted according to the algorithm, but the following two conditions are required to be met: the first one is not larger than the 1.2V used as the sudden change condition, and the second one is to ensure that the set threshold value is smaller than the actual water level voltage value when the water level probe is submerged. Here the difference is taken to be 0.2V.
Specifically, 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 value, namelyWhen voltage mutation occurs, the final stable liquid level voltage is Un. Set UThreshold value＝Un-ΔU, thereby obtaining a voltage threshold value UThreshold value。
As shown in fig. 2, the liquid level detection apparatus according to the embodiment of the present invention includes:
the detection module 1 is used for detecting the current liquid level voltage and the current liquid temperature;
the matching module 2 matches the corresponding compensation voltage according to the current liquid temperature;
the calculation module 3 compensates the liquid level voltage through the compensation voltage to obtain an actual voltage;
and the control module 4 compares the actual voltage with the voltage threshold value and judges the liquid level state.
In order to realize the dynamic threshold value adjusting method, the liquid level detection device further comprises:
the judging module 5 is used for judging whether the voltage sudden change value in the detection period meets the adjustment condition or not according to the current liquid level voltage;
when the voltage jump value meets the adjustment condition, the calculation module 3 adjusts the corresponding voltage threshold according to the current liquid level voltage and the return difference value.
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.
In this embodiment, the module/unit integrated with the liquid level detection apparatus may be stored in a computer readable storage medium if it is implemented in the form of a software functional unit and sold or used as a stand-alone 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 said computer program code, recording medium, U-disk, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory, random access memory, electrical carrier signal, telecommunications signal, software distribution medium, etc. 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.
The kettle provided by the embodiment of the invention comprises a controller, a liquid level probe and a temperature sensing bulb. Wherein, the liquid level probe is used for detecting the liquid level voltage in the kettle. The temperature sensing bulb is used for detecting the temperature of liquid in the kettle. The controller passes through liquid level voltage and liquid temperature, reaches actual voltage, eliminates the TDS value influence of temperature to water to through comparing actual voltage and the threshold voltage of dynamic adjustment low liquid level and full liquid level, in order to realize liquid level detection.
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:
acquiring current liquid level voltage and current liquid temperature;
matching corresponding compensation voltage according to the current liquid temperature;
compensating the liquid level voltage through compensation voltage, eliminating errors generated by liquid TDS value due to temperature change, and obtaining actual voltage;
and comparing the actual voltage with a voltage threshold value, and judging the liquid level state.
2. The method of claim 1, wherein matching the corresponding compensation voltage based on the current fluid temperature comprises:
and calculating the temperature difference between the liquid temperature and the standard temperature, and matching the corresponding compensation voltage according to the temperature difference.
3. The method of claim 1, wherein comparing the actual voltage to a voltage threshold to determine the fluid level condition comprises:
when the actual voltage is greater than or equal to the voltage threshold, judging that water exists;
and when the actual voltage is smaller than the voltage threshold, judging that water is short, and adding water.
4. The method of claim 1, further comprising:
judging whether the voltage sudden change value in the detection period meets the adjustment condition or not according to the current liquid level voltage;
if the voltage mutation value meets the adjustment 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.
5. The method of claim 4, wherein adjusting the corresponding voltage threshold based on the current level voltage comprises:
and (4) eliminating a return difference value of the current liquid level voltage with the voltage mutation value meeting the adjustment condition to obtain a voltage threshold value.
6. A liquid level detection device, comprising:
the detection module is used for detecting the current liquid level voltage and the current liquid temperature;
the matching module is used for matching the corresponding compensation voltage according to the current liquid temperature;
the calculation module compensates the liquid level voltage through the compensation voltage to obtain an actual voltage;
and the control module compares the actual voltage with the voltage threshold value and judges the liquid level state.
7. The fluid level detection apparatus of claim 6, further comprising:
and the judging module is used for judging whether the voltage mutation value in the detection period meets the adjustment condition or not according to the current liquid level voltage.
8. The apparatus of claim 7, wherein the computing module adjusts the corresponding voltage threshold according to the current liquid level voltage and the return difference value when the sudden voltage change value satisfies the adjustment condition.
9. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the steps of the method of liquid level detection according to any one of the claims 1-5.
10. A kettle comprising a controller, a liquid level probe and a thermal bulb, wherein the controller implements the steps of the liquid level detection method according to any one of claims 1 to 5 when executing the program.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110038844.5A CN112857515A (en) | 2021-01-12 | 2021-01-12 | Liquid level detection method and device, storage medium and kettle |
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| CN202110038844.5A CN112857515A (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 |
|---|---|---|---|---|
| CN113439996A (en) * | 2021-07-27 | 2021-09-28 | 珠海格力电器股份有限公司 | Heating control method and device for improving cooking effect of health preserving kettle and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630660A (en) * | 2013-11-28 | 2014-03-12 | 上海盈达空调设备有限公司 | Multifunctional TDS (Total Dissolved Solids) water quality sensor and corresponding water tank of water-cooling fan |
| WO2014126546A1 (en) * | 2013-02-12 | 2014-08-21 | Intelligent Energy, Inc. | Hydrogen generator with fuel gauge |
| CN109298023A (en) * | 2018-11-20 | 2019-02-01 | 王娜 | Portable water quality detection cup |
| CN110823963A (en) * | 2018-08-09 | 2020-02-21 | 上海朴道水汇环保科技股份有限公司 | TDS detection method and system, and terminal |
| CN110897506A (en) * | 2019-12-05 | 2020-03-24 | 珠海格力电器股份有限公司 | Electric kettle water level detection method and system, storage medium and device and electric kettle |
| CN210181029U (en) * | 2019-07-10 | 2020-03-24 | 吴红平 | Water quality monitoring intelligent liquid level system of water purification system water tank |
| CN211121513U (en) * | 2019-10-15 | 2020-07-28 | 武汉慧达电子科技有限公司 | Monitoring device and instant heating type water feeder |
| CN111854888A (en) * | 2020-07-25 | 2020-10-30 | 珠海格力电器股份有限公司 | Water level detection method and device, storage medium and kettle |
-
2021
- 2021-01-12 CN CN202110038844.5A patent/CN112857515A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014126546A1 (en) * | 2013-02-12 | 2014-08-21 | Intelligent Energy, Inc. | Hydrogen generator with fuel gauge |
| CN103630660A (en) * | 2013-11-28 | 2014-03-12 | 上海盈达空调设备有限公司 | Multifunctional TDS (Total Dissolved Solids) water quality sensor and corresponding water tank of water-cooling fan |
| CN110823963A (en) * | 2018-08-09 | 2020-02-21 | 上海朴道水汇环保科技股份有限公司 | TDS detection method and system, and terminal |
| CN109298023A (en) * | 2018-11-20 | 2019-02-01 | 王娜 | Portable water quality detection cup |
| CN210181029U (en) * | 2019-07-10 | 2020-03-24 | 吴红平 | Water quality monitoring intelligent liquid level system of water purification system water tank |
| CN211121513U (en) * | 2019-10-15 | 2020-07-28 | 武汉慧达电子科技有限公司 | Monitoring device and instant heating type water feeder |
| CN110897506A (en) * | 2019-12-05 | 2020-03-24 | 珠海格力电器股份有限公司 | Electric kettle water level detection method and system, storage medium and device and electric kettle |
| CN111854888A (en) * | 2020-07-25 | 2020-10-30 | 珠海格力电器股份有限公司 | Water level detection method and device, storage medium and kettle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113439996A (en) * | 2021-07-27 | 2021-09-28 | 珠海格力电器股份有限公司 | Heating control method and device for improving cooking effect of health preserving kettle and storage medium |
| CN113439996B (en) * | 2021-07-27 | 2022-04-15 | 珠海格力电器股份有限公司 | Heating control method and device for improving cooking effect of health preserving kettle and storage medium |
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Application publication date: 20210528 |