CN113068982A - Method and circuit for detecting dry-heating of water cup based on inclination angle - Google Patents
Method and circuit for detecting dry-heating of water cup based on inclination angle Download PDFInfo
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- CN113068982A CN113068982A CN202110332832.3A CN202110332832A CN113068982A CN 113068982 A CN113068982 A CN 113068982A CN 202110332832 A CN202110332832 A CN 202110332832A CN 113068982 A CN113068982 A CN 113068982A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G19/00—Table service
- A47G19/22—Drinking vessels or saucers used for table service
- A47G19/2205—Drinking glasses or vessels
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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
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21058—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the 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
- A47J27/21058—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water
- A47J27/21091—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water of electronic type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- Control Of Washing Machine And Dryer (AREA)
Abstract
The invention discloses a method for detecting dry burning of a water cup based on an inclination angle, which belongs to the field of intelligent water cups and comprises the steps that in the process of heating the water cup, an acceleration sensor is arranged on the water cup, and when the acceleration sensor on the water cup detects that the angle of the water cup is smaller than 75 degrees or larger than 115 degrees, the water cup stops heating; when a user adjusts the placement angle of the water cup, when the angle of the cup is more than 75 degrees and less than 115 degrees, the countdown is started for 5s, if the countdown is in process, when the angle of the cup is less than 75 degrees or more than 115 degrees, the countdown is kept for 5s until the countdown is 0, after the temperature of the bottom temperature sensor A is continuously unchanged for 5s or continuously drops for 2 times, the heating device is started again, the bottom temperature and the low temperature of the water cup are detected by the bottom temperature sensor A and the low temperature sensor B on the water cup at an interval of 1s, the temperature sensors are arranged on the low side wall and the bottom of the water cup respectively, and the acceleration sensor is arranged in the water cup, so that the dry-boiling phenomenon can be prevented.
Description
Technical Field
The invention belongs to the technical field, and particularly relates to a method and a circuit for detecting dry-heating of a water cup based on an inclination angle.
Background
At present, when a cup is heated, a method for detecting dry burning is single, whether the rising trend of temperature meets the rising trend of normal heating is detected by only one temperature sensor, and if the rising trend of temperature exceeds the heating trend, the cup is considered to be dry burning. Currently, there is a method of weighing to distinguish whether there is water, and when the weight is equal to the weight of the cup itself, it is considered that there is no water, and heating is considered to be dry burning.
The single consideration of a temperature rising trend can not avoid the danger caused by the fact that the temperature rising trend exceeds the normal heating rising trend when hot water is slowly poured to identify mistaken dry burning, or the mistaken dry burning identification is caused by the fact that the bottom of the cup is exposed out of the water surface when the cup is inclined, and after the dry burning occurs, normal heating can be carried out only when the temperature is reduced to the normal temperature, or continuous heating and continuous dry burning can be carried out. When the weight of the cup is larger than the weight of the cup, water is considered to be heated, and after long-term use, the weight of scale or the weight of the cup pressed is mistaken for water, so that dry burning brings danger.
Disclosure of Invention
The invention aims to provide a method for detecting the dry burning of a water cup based on an inclination angle, which can prevent the occurrence of the phenomenon of the dry burning of the water cup by respectively arranging temperature sensors on the lower side wall and the bottom of the water cup and arranging an acceleration sensor in the water cup.
In order to achieve the purpose, the invention adopts the following technical scheme: the method for detecting the dry burning of the water cup based on the inclination angle comprises the following steps:
s1, in the process of heating the cup, when the acceleration sensor is arranged on the cup and the acceleration sensor on the cup detects that the angle of the cup is smaller than 75 degrees or larger than 115 degrees, the cup stops heating;
s2, when a user adjusts the placement angle of the water cup, when the angle of the cup is larger than 75 degrees and smaller than 115 degrees, starting countdown for 5S, if the angle of the cup is smaller than 75 degrees or larger than 115 degrees in the countdown process, keeping the countdown for 5S, and when the countdown is 0 and the temperature of the bottom temperature sensor A is kept unchanged for 5S or continuously descends for 2 times, resuming to start the heating device;
s3, in the process of heating the cup, detecting the bottom temperature and the low-level temperature of the primary water cup by the bottom temperature sensor A and the low-level temperature sensor B on the water cup at an interval of 1S, and simultaneously judging the following conditions;
the condition 1, when the bottom temperature is 10 ℃ higher than the low temperature for 5s, the cup is considered to be dry-burnt, dry-burning protection is carried out, and heating is stopped;
the current bottom temperature is 1 ℃ higher than the bottom temperature of 1s, and the current low temperature is reduced or is the same as the low temperature of 1s, the cup is regarded as the possible dry burning condition, if the condition continuously occurs for 5s, the cup is regarded as dry burning, the dry burning protection is carried out, and the heating is stopped;
and 4, when the cup is not heated, no dry burning protection is needed no matter how the angle of the cup is changed.
Preferably, the heating means is activated when the user drops the water in the water cup or adds new cold water.
Preferably, after the dry burning occurs, when the difference between the bottom temperature and the low temperature is more than 5 degrees, the heating is still in the dry burning state, the heating cannot be started again, and when the temperature is reduced to the normal temperature or the water is poured into the water, the difference between the bottom temperature and the low temperature is less than 5 degrees, the dry burning state is released, and the heating can be continued immediately.
Preferably, after a user adds cold water into the water cup, the bottom of the water cup is heated again, the water temperature rises by 1 ℃ or is higher than 1 ℃ within 1s, the water temperature is detected again through the bottom temperature sensor A and the low temperature sensor B after waiting for 5s, and the phenomenon of dry burning is prevented.
The circuit for implementing the tilt angle-based method for detecting dry-burning of a cup according to any one of claims 1 to 4, comprising a power control module, a system power module, a heating control module and a main control system module, wherein the power output terminal of the power control module is electrically connected to the power input terminal of the system power module and the heating device of the heating control module, respectively.
Preferably, the system power module is electrically connected to the power supply end of the main control system module, the first signal output end of the main control system module is electrically connected to the input end of the temperature detection module, and the second signal output end of the main control system module is electrically connected to the angle monitoring detection module.
Preferably, the temperature detection module detects the temperature of water in the water cup through a temperature sensor, and the angle detection module detects the inclination angle of the water cup through an acceleration sensor.
Preferably, the MOS pipe of temperature sensor and the one end looks electrical connection of resistance R14, the other termination of resistance R14 has NTC1_ ADC port, the MOS pipe is connected with the one end looks electrical connection of resistance R41, the other termination of resistance R41 has NTC1_ EN port, the MOS pipe is connected with the one end looks electrical connection of resistance R40, the other end and the MOS pipe of resistance R40 are ground connection setting, the temperature detection module includes bottom temperature sensor A and low-order temperature sensor B.
Preferably, the acceleration sensor of the angle adjustment module is of the type QMA7981, the AD0 end, the RESV1 end and the RESV2 end of the acceleration sensor are arranged in a common grounding way, the SDX end of the acceleration sensor is electrically connected with one end of a resistor R18, the SCL end of the acceleration sensor is electrically connected with one end of a resistor R17, the other ends of the resistor R18 and the resistor R17 are electrically connected with the VDDIO end of the acceleration sensor, the VDD end and the SENB end of the acceleration sensor are in short circuit, the VDDIO end of the acceleration sensor is also respectively connected with one end of a capacitor C18, a capacitor C19 and one end of a capacitor C20, the other ends of the capacitor C18, the capacitor C19 and the capacitor C20 and the GNDIO end of the acceleration sensor are all arranged in a grounding way, the VDDIO end of the acceleration sensor is electrically connected with one end of a magnetic bead FB3 relatively, and the other end of the magnetic bead FB3 is connected with a VCC33 port.
Compared with the prior art, the method for detecting the dry burning of the water cup based on the inclination angle has the beneficial effects that:
1. the temperature sensor is arranged on the lower side wall of the water cup, the temperature sensor is arranged at the bottom of the water cup, and the water cup is in signal transmission with the system, so that temperature electric signals can be transmitted according to the two sensors, and whether the water cup is subjected to heating treatment is selected by logically matching the method edited by the system with the heating device, so that the phenomenon of dry burning of the water cup can be avoided.
2. The acceleration sensor is arranged on the water cup, and the angle of the water cup after being placed is detected through the acceleration sensor, so that whether the water cup is placed horizontally or not can be judged, whether the water in the water cup leaks out of the bottom of the water cup or not can be judged, the dry burning phenomenon can be caused, the dry burning phenomenon of the water cup can be well avoided through the action of the acceleration sensor and the logic of a method for detecting the dry burning of the water cup, and the service life of a product is prolonged.
Drawings
FIG. 1 is a flow chart of the method of the present invention
FIG. 2 is a schematic view of a portion of the structure of the cup of the present invention;
FIG. 3 is a circuit diagram of a charging management module according to the present invention;
FIG. 4 is a circuit diagram of a charge balancing module of the present invention;
FIG. 5 is a circuit diagram of a system power module according to the present invention;
FIG. 6 is a circuit diagram of a master control system module according to the present invention;
FIG. 7 is a circuit diagram of a heating device of the present invention;
FIG. 8 is a circuit diagram of an angle detection module according to the present invention;
FIG. 9 is a circuit diagram of a temperature detection module according to the present invention;
FIG. 10 is a circuit diagram of a key module according to the present invention.
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. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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.
Example 1
In the process of heating the water cup, when the angle of the water cup is detected to be smaller than 75 degrees or larger than 115 degrees, the water cup stops heating, when the angle of the water cup is larger than 75 degrees and smaller than 115 degrees, countdown is started for 5s, if the angle of the water cup is smaller than 75 degrees or larger than 115 degrees in the countdown process, the countdown is kept for 5s, when the countdown is 0, the temperature of the bottom temperature sensor is continuously unchanged for 5s or continuously drops for 2 times (water is poured or cold water is added), the heating device is restarted, when the angle is detected to be exceeded, the heating is stopped so as to avoid the danger of dry heating or mistaken dry heating caused by the fact that the bottom of the water cup is exposed out of the water surface in the process of pouring water by a user, in the process of heating the water cup, the bottom temperature and the low-level temperature are detected once at an interval of 1s, and:
1. if the bottom temperature is 10 ℃ higher than the low temperature for 5 seconds, the cup is considered to be dried, the water is dried, the heating is stopped, and the reason why the bottom temperature is 10 ℃ higher than the low temperature for 5 seconds is to continuously detect the temperature for 5 seconds.
2. If the current bottom temperature is 1 ℃ or more higher than the bottom temperature of the last 1s and the current low temperature is reduced or the current low temperature is the same as the low temperature of the last 1s, the water cup is considered to be dry-burned, dry-burning protection is carried out, heating is stopped, and whether the current low temperature is continuously 5s or not is detected, so that the false dry-burning judgment that the bottom temperature is sharply increased when hot water is poured is avoided, if hot water is poured, the bottom temperature and the low temperature are both sharply increased, if the situation of dry-burning lasts for 5s, the dry-burning is considered to be dry-burned, so that the situation that the bottom temperature is sharply increased and the low temperature is not changed when hot water is poured is avoided, the situation that the bottom temperature is sharply increased and the low temperature is not changed is mistaken for dry-burning, or after cold water is poured, the bottom temperature may have a return temperature (1s is increased by 1 ℃ or more) and the low temperature is not changed for mistaken for dry-burning, the continuous detection for 5s is active, in fact to wait for the temperature to equilibrate.
3. When the bottom temperature continuously rises for 2s and the low temperature continuously falls for 2s, the cup is considered to be dry-boiled, dry-boiling protection is carried out, and heating is stopped, so that the situation that after hot water is poured out, the bottom temperature and the low temperature continuously fall (cold water is possibly added) can be quickly identified, the 1 st and 2 nd conditions are not met, if cold water is added, the 1 st and 2 nd dry-boiling conditions cannot be met, if no water exists, the bottom temperature quickly continuously rises under the heating starting state, and the low temperature continuously falls, and the 3 rd conditions are compared with the 1 st and 2 nd conditions. After dry burning occurs, when the difference between the bottom temperature and the low temperature is more than 5 degrees, the heating is still in a dry burning state, the heating cannot be started again, and when the temperature is reduced to the normal temperature or the water is poured into the water, the difference between the bottom temperature and the low temperature is less than 5 degrees, the dry burning state is released, and the heating can be continued immediately.
4. When the water cup is not heated, no matter how the angle of the water cup changes, dry burning protection is not needed.
The invention provides a flow chart of a method for detecting dry burning of a water cup based on an inclination angle as shown in figure 1, and realizes a circuit for detecting dry burning of the water cup based on the inclination angle as shown in figures 3-10,
the temperature monitoring system comprises a power supply control module, a system power supply module, a heating control module and a main control system module, wherein a power supply output end of the power supply control module is respectively electrically connected with a power supply input end of the system power supply module and a heating device of the heating control module, the system power supply module is electrically connected with a power supply end of the main control system module, a first signal output end of the main control system module is electrically connected with an input end of a temperature detection module, a second signal output end of the main control system module is electrically connected with an angle monitoring detection module, the temperature detection module detects the temperature of water in a water cup through a temperature sensor, and the angle detection module detects the inclination angle of the water cup through an acceleration sensor.
The MOS tube of the temperature sensor is electrically connected with one end of a resistor R14, the other end of the resistor R14 is connected with an NTC1_ ADC port, the MOS tube is electrically connected with one end of a resistor R41, the other end of the resistor R41 is connected with an NTC1_ EN port, the MOS tube is electrically connected with one end of a resistor R40, the other end of the resistor R40 and the MOS tube are both grounded, and the temperature detection module comprises a bottom temperature sensor A and a low-level temperature sensor B.
The temperature detection module detects the temperature of water in the water cup through the temperature sensors, the temperature sensors of the temperature detection module are provided with two groups, one group of temperature sensors is arranged at the bottom of the water cup and is a bottom temperature sensor A, the other group of temperature sensors is arranged on the side wall of the water cup and is a low-level temperature sensor B, the temperature at the bottom of the cup is detected by a bottom temperature sensor A on the bottom of the cup, if the temperature at the bottom is 10 ℃ higher than the temperature detected by a low-level temperature sensor B for 5s, the cup is considered to be dry-burned, if the heating system is considered to be dry-burning when the bottom temperature continuously rises for 2s and the low-level temperature continuously falls for 2s, the heating system can be subjected to signal transmission through the main control system, therefore, the heating system controls the heating device to be switched on and off, and the heating device can stop heating.
The acceleration sensor of the angle adjusting module is of a QMA7981 model, an AD0 end, an RESV1 end and an RESV2 end of the acceleration sensor are in common grounding arrangement, an SDX end of the acceleration sensor is electrically connected with one end of a resistor R18, an SCL end of the acceleration sensor is electrically connected with one end of a resistor R17, the other ends of the resistor R18 and the resistor R17 are electrically connected with a VDDIO end of the acceleration sensor, a VDD end of the acceleration sensor is in short circuit with an SENB end, the VDDIO end of the acceleration sensor is further respectively connected with one ends of a capacitor C18, a capacitor C19 and a capacitor C20, the other ends of the capacitor C18, the capacitor C19 and the capacitor C20 and a GNDIO end of the acceleration sensor are in grounding arrangement, the VDDIO end of the acceleration sensor is electrically connected with one end of a magnetic bead FB3 relatively, and the other end of the magnetic bead FB3 is connected.
The angle detection module detects the inclination angle of the water cup through the acceleration sensor, when the water cup is placed on a table top, the inclination angle of the water cup is detected through the acceleration sensor, when the angle of the cup is detected to be smaller than 75 degrees or larger than 115 degrees, the cup stops heating, when the angle of the cup is larger than 75 degrees and smaller than 115 degrees, starting to count down for 5s through a time relay in the main control system, if the angle of the water cup is smaller than 75 degrees or larger than 115 degrees in the counting down process, the countdown is kept for 5s until the countdown is 0, after the temperature of the bottom temperature sensor is continuously kept unchanged for 5s or continuously drops for 2 times (water is poured or cold water is added), the heating device is started again, and the heating is stopped when the detection result shows that the angle is exceeded, so that the danger of dry heating caused by the fact that the bottom of the water cup is exposed out of the water surface or the water cup is mistaken for dry heating in the water pouring process of a user is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. A method for detecting dry heating of a water cup based on an inclination angle is characterized by comprising the following steps:
s1, in the process of heating the cup, when the acceleration sensor is arranged on the cup and the acceleration sensor on the cup detects that the angle of the cup is smaller than 75 degrees or larger than 115 degrees, the cup stops heating;
s2, when a user adjusts the placement angle of the water cup, when the angle of the cup is larger than 75 degrees and smaller than 115 degrees, starting countdown for 5S, if the angle of the cup is smaller than 75 degrees or larger than 115 degrees in the countdown process, keeping the countdown for 5S, and when the countdown is 0 and the temperature of the bottom temperature sensor A is kept unchanged for 5S or continuously descends for 2 times, resuming to start the heating device;
s3, in the process of heating the cup, detecting the bottom temperature and the low-level temperature of the primary water cup by the bottom temperature sensor A and the low-level temperature sensor B on the water cup at an interval of 1S, and simultaneously judging the following conditions;
the condition 1, when the bottom temperature is 10 ℃ higher than the low temperature for 5s, the cup is considered to be dry-burnt, dry-burning protection is carried out, and heating is stopped;
the current bottom temperature is 1 ℃ higher than the bottom temperature of 1s, and the current low temperature is reduced or the current low temperature is the same as the low temperature of 1s, the cup is regarded as the possible dry burning condition, if the condition continuously occurs for 5s, the cup is regarded as dry burning, the dry burning protection is carried out, and the heating is stopped;
condition 3, when the bottom temperature continuously rises for 2s and the low temperature continuously falls for 2s, the cup is considered to be dry-burned, dry-burning protection is carried out, and heating is stopped, so that the condition that the bottom temperature and the low temperature continuously fall after hot water is poured can be quickly identified, the condition 1 and the condition 2 are not met, if cold water is added, the condition 1 and the condition 2 cannot be met, if no water is added, the bottom temperature continuously rises quickly in a heating starting state, and the low temperature continuously falls, and the dry burning can be quickly identified under the condition 3 compared with the condition 1 and the condition 2;
and 4, when the cup is not heated, no dry burning protection is needed no matter how the angle of the cup is changed.
2. The method for detecting the dry burning of the water cup based on the inclination angle as claimed in claim 1, which is characterized in that: when the user drops the water in the water cup or adds new cold water again, the heating device is started.
3. The method for detecting the dry burning of the water cup based on the inclination angle as claimed in claim 1, which is characterized in that: after dry burning occurs, when the difference between the bottom temperature and the low temperature is more than 5 degrees, the heating is still in a dry burning state, the heating cannot be started again, and when the temperature is reduced to the normal temperature or the water is poured into the water, the difference between the bottom temperature and the low temperature is less than 5 degrees, the dry burning state is released, and the heating can be continued immediately.
4. The method for detecting the dry burning of the water cup based on the inclination angle as claimed in claim 1, which is characterized in that: when a user adds cold water into the water cup, the bottom of the water cup is heated again, the water temperature rises by 1 ℃ or is higher than 1 ℃ within 1s, the water temperature is detected again through the bottom temperature sensor A and the low temperature sensor B after waiting for 5s, and the phenomenon of dry burning is prevented by mistake.
5. The circuit for realizing the method for detecting the dry-burning of the water cup based on the inclination angle as claimed in any one of claims 1 to 4, which comprises a power supply control module, a system power supply module, a heating control module and a main control system module, wherein the power supply output end of the power supply control module is electrically connected with the power supply input end of the system power supply module and the heating device of the heating control module respectively.
6. The circuit for detecting the cup dry-heating method based on the inclination angle according to claim 5, characterized in that: the system power supply module is electrically connected with the power supply end of the master control system module, the first signal output end of the master control system module is electrically connected with the input end of the temperature detection module, and the second signal output end of the master control system module is electrically connected with the angle monitoring detection module.
7. The circuit for detecting the cup dry-heating method based on the inclination angle according to claim 6, characterized in that: the temperature detection module detects the temperature of water in the water cup through the temperature sensor, and the angle detection module detects the inclination angle of the water cup through the acceleration sensor.
8. The circuit for detecting the cup dry-heating method based on the inclination angle according to claim 7, characterized in that: temperature sensor's MOS pipe and resistance R14's one end looks electrical connection, the other termination of resistance R14 has NTC1_ ADC port, the MOS pipe is connected with resistance R41's one end looks electrical connection, resistance R41's the other termination has NTC1_ EN port, the MOS pipe is connected with resistance R40's one end looks electrical connection, resistance R40's the other end and MOS pipe are ground connection setting, the temperature detect module includes bottom temperature sensor A and low-order temperature sensor B.
9. The circuit for detecting the cup dry-heating method based on the inclination angle according to claim 7, characterized in that: the acceleration sensor of the angle adjusting module is of a QMA7981 model, an AD0 end, an RESV1 end and an RESV2 end of the acceleration sensor are arranged in a common grounding mode, an SDX end of the acceleration sensor is electrically connected with one end of a resistor R18, an SCL end of the acceleration sensor is electrically connected with one end of a resistor R17, VDDIO ends of the other ends of the resistor R18 and the resistor R17 are electrically connected with one end of the acceleration sensor, a VDD end of the acceleration sensor is in short circuit with a SENB end, the VDDIO end of the acceleration sensor is further respectively connected with one ends of a capacitor C18, a capacitor C19 and a capacitor C20, the other ends of the capacitor C18, the capacitor C19 and the capacitor C20 and a GNDIO end of the acceleration sensor are arranged in a grounding mode, the VDDIO end of the acceleration sensor is electrically connected with one end of a magnetic bead 3, and the other end of the FB3 is connected with a VCC33 port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110332832.3A CN113068982A (en) | 2021-03-29 | 2021-03-29 | Method and circuit for detecting dry-heating of water cup based on inclination angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110332832.3A CN113068982A (en) | 2021-03-29 | 2021-03-29 | Method and circuit for detecting dry-heating of water cup based on inclination angle |
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| Publication Number | Publication Date |
|---|---|
| CN113068982A true CN113068982A (en) | 2021-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110332832.3A Withdrawn CN113068982A (en) | 2021-03-29 | 2021-03-29 | Method and circuit for detecting dry-heating of water cup based on inclination angle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080308547A1 (en) * | 2005-09-10 | 2008-12-18 | Mohan Zhang | Method of Controlling Electric Kettle for "Dry" Burn Prevention |
| CN102160013A (en) * | 2007-06-18 | 2011-08-17 | 奥特控制有限公司 | Liquid heating vessel and control |
| CN107485253A (en) * | 2017-08-28 | 2017-12-19 | 莆田市烛火信息技术有限公司 | Drink water pouring identification cup |
| CN110108029A (en) * | 2019-04-29 | 2019-08-09 | 北京弗圣威尔科技有限公司 | Cup anti-dry control method and heating device for preventing dry heating |
| CN211484049U (en) * | 2019-11-13 | 2020-09-15 | 曾军 | Dry burning prevention detection device capable of detecting temperature and water level simultaneously and equipment thereof |
-
2021
- 2021-03-29 CN CN202110332832.3A patent/CN113068982A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080308547A1 (en) * | 2005-09-10 | 2008-12-18 | Mohan Zhang | Method of Controlling Electric Kettle for "Dry" Burn Prevention |
| CN102160013A (en) * | 2007-06-18 | 2011-08-17 | 奥特控制有限公司 | Liquid heating vessel and control |
| CN107485253A (en) * | 2017-08-28 | 2017-12-19 | 莆田市烛火信息技术有限公司 | Drink water pouring identification cup |
| CN110108029A (en) * | 2019-04-29 | 2019-08-09 | 北京弗圣威尔科技有限公司 | Cup anti-dry control method and heating device for preventing dry heating |
| CN211484049U (en) * | 2019-11-13 | 2020-09-15 | 曾军 | Dry burning prevention detection device capable of detecting temperature and water level simultaneously and equipment thereof |
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Application publication date: 20210706 |