CN110037548B - Temperature display method of electric kettle - Google Patents
Temperature display method of electric kettle Download PDFInfo
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- CN110037548B CN110037548B CN201910355008.2A CN201910355008A CN110037548B CN 110037548 B CN110037548 B CN 110037548B CN 201910355008 A CN201910355008 A CN 201910355008A CN 110037548 B CN110037548 B CN 110037548B
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- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000013507 mapping Methods 0.000 claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 82
- 230000008569 process Effects 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 35
- 238000004321 preservation Methods 0.000 claims description 27
- 238000009529 body temperature measurement Methods 0.000 claims description 13
- 238000009835 boiling Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
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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
- A47J27/21083—Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water with variable operating parameters, e.g. temperature or boiling period
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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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- Food Science & Technology (AREA)
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Abstract
The embodiment of the invention discloses a temperature display method of an electric kettle, which comprises the following steps: detecting the water temperature in real time in the working process of the electric kettle; acquiring a corresponding temperature mapping table according to the current working mode and the detected water temperature; displaying the current water temperature in real time according to the temperature in the temperature mapping table; different working modes respectively correspond to different temperature mapping tables, and the different temperature mapping tables are obtained according to different mapping rules. Through the scheme of the embodiment, the temperature display precision under different working states is ensured.
Description
Technical Field
The embodiment of the invention relates to the control technology of an electric kettle, in particular to a temperature display method of the electric kettle.
Background
At present, the temperature display adopted by electric kettles and health preserving kettles in the industry is based on the sensing of a thermosensitive element (NTC: negative temperature coefficient resistor), and a non-contact temperature measuring scheme is generally adopted in order to ensure the food safety and improve the appearance quality of products. The display principle is that the NTC resistance-thermometer is converted into a temperature-AD meter according to a temperature measuring circuit and an analog-digital converter. The AD value difference corresponding to the same temperature in the non-contact temperature measurement heating process and the non-heating process is larger, so that the temperature display precision in the heating process and the non-heating process can not be obtained at the same time.
Disclosure of Invention
The embodiment of the invention provides a temperature display method of an electric kettle, which can ensure the temperature display precision under different working states.
In order to achieve the above object, an embodiment of the present invention provides a temperature displaying method for an electric kettle, which may include:
detecting the water temperature in real time in the working process of the electric kettle;
acquiring a corresponding temperature mapping table according to the current working mode and the detected water temperature; the temperature mapping table is a pre-established corresponding table between the actual water temperature and the detected water temperature;
displaying the current water temperature in real time according to the actual water temperature in the temperature mapping table;
different working modes respectively correspond to different temperature mapping tables, and the different temperature mapping tables are obtained according to different mapping rules.
In an exemplary embodiment of the present invention, the operation mode may include: a power mode and a no power mode; the temperature map may include: a first mapping table and a second mapping table; the power mode refers to a mode that the heating power is greater than a preset power threshold, and the no-power mode refers to a mode that the heating power is less than or equal to the preset power threshold;
the active power mode corresponds to the first mapping table; the no-power mode corresponds to the second mapping table.
In an exemplary embodiment of the present invention, the powered mode may include: a heating mode; the no power mode may include: a heat preservation mode, a standby mode and a function selection mode; the first mapping table may include: a heating mapping table, the second mapping table may include: a heat preservation mapping table;
the heating mode corresponds to the heating mapping table; the heat preservation mode, the standby mode and the function selection mode correspond to the heat preservation mapping table.
In an exemplary embodiment of the present invention, the method may further include: the method comprises the steps of enabling different working modes to correspond to one working mode zone bit respectively, setting the working mode zone bit corresponding to the working mode to be a first mark when the electric kettle is in any one working mode, and clearing the working mode zone bit corresponding to the working mode when the electric kettle is not in the working mode.
In an exemplary embodiment of the present invention, the method may further include: determining the current working mode according to the mark of the working mode mark bit; and calling a corresponding mapping rule according to the working mode so as to obtain a corresponding temperature mapping table according to the mapping rule and the detected water temperature.
In an exemplary embodiment of the present invention, the method may further include: and before determining the current working mode according to the mark of the working mode flag bit, performing logic OR operation on a plurality of working mode flag bits to select the working mode flag bit set as the first mark.
In an exemplary embodiment of the present invention, the electric kettle may include: a temperature measuring resistor; the temperature measuring resistor is used for detecting the water temperature in real time;
the temperature measuring resistor detects the water temperature by adopting a contact temperature measuring method;
the contact type temperature measuring method comprises the following steps: the temperature measuring resistor is inserted into the water in the electric kettle to detect the water temperature.
In an exemplary embodiment of the present invention, the electric kettle may include: a temperature measuring resistor; the temperature measuring resistor is used for detecting the water temperature in real time;
the temperature measuring resistor detects the water temperature by adopting a non-contact temperature measuring method;
the non-contact temperature measurement method comprises the following steps: and the temperature measuring resistor is assembled at the cold end of the heating pipe in the electric kettle to detect the water temperature.
In an exemplary embodiment of the present invention, the method may further include: and adjusting the mapping rule according to different water quantities.
In an exemplary embodiment of the present invention, the temperature map may include: and the mapping table is used for mapping the actual water temperature to the modulus AD value.
The beneficial effects of the embodiment of the invention can include:
1. the embodiment scheme of the invention comprises the following steps: detecting the water temperature in real time in the working process of the electric kettle; acquiring a corresponding temperature mapping table according to the current working mode and the detected water temperature; displaying the current water temperature in real time according to the temperature in the temperature mapping table; different working modes respectively correspond to different temperature mapping tables, and the different temperature mapping tables are obtained according to different mapping rules. Through the scheme of the embodiment, the temperature display precision under different working states is ensured.
2. The working modes of the embodiment of the present invention may include: a power mode and a no power mode; the temperature map may include: a first mapping table and a second mapping table; the power mode refers to a mode that the heating power is greater than a preset power threshold, and the no-power mode refers to a mode that the heating power is less than or equal to the power threshold; the active power mode corresponds to the first mapping table; the no-power mode corresponds to the second mapping table. Through the scheme of the embodiment, the temperature is displayed according to different temperature mapping tables (the first mapping table and the second mapping table) in the power mode and the no-power mode respectively, and the temperature display precision in the power mode and the no-power mode is ensured.
3. The method of the embodiment of the present invention may further include: the method comprises the steps of enabling different working modes to correspond to one working mode zone bit respectively, setting the working mode zone bit corresponding to the working mode to be a first mark when the electric kettle is in any one working mode, and clearing the working mode zone bit corresponding to the working mode when the electric kettle is not in the working mode. The working states of the first mapping table (water burning table) and the second mapping table (heat preservation table) are respectively used by setting the flag bit variable, so that the use switching of the temperature-AD table in different working states is completed, and the temperature display precision in each working state is ensured to be the better state.
4. The method of the embodiment of the present invention may further include: and before determining the current working mode according to the mark of the working mode flag bit, performing logic OR operation on a plurality of working mode flag bits to select the working mode flag bit set as the first mark. Through the scheme of the embodiment, a technical basis is provided for adopting corresponding temperature mapping tables in different working modes.
5. The method of the embodiment of the present invention may further include: and adjusting the mapping rule according to different water quantities. Through the scheme of the embodiment, the influence of temperature measurement delay on temperature display precision can be reduced.
Additional features and advantages of embodiments of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the embodiments of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the examples of the application do not constitute a limitation of the embodiments of the invention.
Fig. 1 is a schematic diagram of a temperature displaying method of an electric kettle according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
Example one
The embodiment of the invention provides a temperature displaying method of an electric kettle, which comprises the following steps of S101-S103:
s101, detecting the water temperature in real time in the working process of the electric kettle;
s102, acquiring a corresponding temperature mapping table according to the current working mode and the detected water temperature; the temperature mapping table is a pre-established corresponding table between the actual water temperature and the detected water temperature;
s103, displaying the current water temperature in real time according to the actual water temperature in the temperature mapping table;
different working modes respectively correspond to different temperature mapping tables, and the different temperature mapping tables are obtained according to different mapping rules.
In order to avoid the interference of the NTC temperature measurement by external temperature such as a heating pipe, the NTC is generally assembled at the cold end of the heating pipe, and non-contact temperature measurement is adopted. In the heating process, the temperature measured by the NTC is delayed from the actual water temperature, and particularly, the sensed temperature of the NTC is far behind the actual water temperature in a period of time after being started; and under the power-free states of heat preservation or standby and the like, the temperature sensed by the NTC and the actual water temperature reach dynamic balance, and the temperature measurement delay can be ignored. For example, when the display accuracy in the water boiling process is considered, the display accuracy in the no-power states such as heat preservation and standby states is reduced; when the display accuracy in the no-power state such as heat preservation and standby is considered, the display accuracy in the water boiling process is lowered.
In an exemplary embodiment of the present invention, the temperature map may include: and the mapping table is used for mapping the actual water temperature to the modulus AD value.
In the exemplary embodiment of the present invention, two temperature-AD tables may be provided in order to respectively improve the temperature display accuracy in each operating state (i.e., operating mode).
In an exemplary embodiment of the present invention, the operation mode may include: a power mode and a no power mode; the temperature map may include: a first mapping table and a second mapping table; the power mode refers to a mode that the heating power is greater than a preset power threshold, and the no-power mode refers to a mode that the heating power is less than or equal to the preset power threshold;
the powered mode may correspond to the first mapping table; the no-power mode may correspond to the second mapping table.
In an exemplary embodiment of the present invention, the powered mode may include: a heating mode; the no power mode may include: a heat preservation mode, a standby mode and a function selection mode; the first mapping table may include: a heating mapping table, the second mapping table may include: a heat preservation mapping table;
the heating pattern may correspond to the heating map; the heat-preservation mode, the standby mode, and the function selection mode may correspond to the heat-preservation mapping table.
In an exemplary embodiment of the present invention, the mapping rule may be obtained through a test, and may be obtained through a test debugging, during the water boiling process, the NTC resistance-temperature table is converted into a corresponding table of real-time temperature and AD value, which is called a temperature-AD 1 table, also called a water boiling table, i.e. the above-mentioned first mapping table; in the non-power modes such as heat preservation, the NTC resistance-temperature table may be replaced by another real-time temperature and AD value corresponding table, which is referred to as a temperature-AD table 2, or a heat preservation table, i.e. the second mapping table.
In an exemplary embodiment of the present invention, a first corresponding curve of the real-time temperature and the AD value in the power mode (e.g., during water boiling) may be calculated in advance according to the test result, a second corresponding curve of the real-time temperature and the AD value in the no-power mode (e.g., during heat preservation, standby, function selection, etc.) may be calculated, and the first corresponding curve and the second corresponding curve are used as the mapping rule.
In an exemplary embodiment of the present invention, the real-time displaying of the temperature may be that the signal of the temperature measuring circuit is converted into a digital value (i.e., AD value) through an analog-to-digital (ajo) converter, and then the corresponding temperature is obtained through a query of the real-time AD value and a temperature-to-AD table. The water-boiling meter can be inquired in the water-boiling heating state, and the heat-preserving meter can be inquired in the heat-preserving state and other states.
In the exemplary embodiment of the present invention, during water boiling, the AD value converted by the signal may be converted into the display temperature through the water boiling meter, and during a power-free state such as heat preservation or standby, the AD value may be converted into the display temperature through the heat preservation meter.
Example two
In this embodiment, on the basis of the first embodiment, the first mapping table and the second mapping table are used differently by setting the flag bit of the operating mode.
In an exemplary embodiment of the present invention, the method may further include: the method comprises the steps of enabling different working modes to correspond to one working mode zone bit respectively, setting the working mode zone bit corresponding to the working mode to be a first mark when the electric kettle is in any one working mode, and clearing the working mode zone bit corresponding to the working mode when the electric kettle is not in the working mode.
In an exemplary embodiment of the present invention, when the electric kettle is in different working modes, a preset working mode flag bit may be set as a corresponding mode flag; wherein, different working modes correspond to different mode marks one to one.
In the exemplary embodiment of the invention, a heat preservation effective mark B can be set in a heat preservation state, B can be set to 1 after entering a heat preservation range, and B can be cleared after the actual water temperature exceeds the heat preservation range; in other non-power operating states (i.e. non-power modes), such as a standby state and a function selection state, a cooling flag D may be set, and D is set to 1, and D may be cleared in a power state (i.e. power mode).
In an exemplary embodiment of the present invention, the method may further include: determining the current working mode according to the mark of the working mode mark bit; and calling a corresponding mapping rule (such as a first corresponding curve or a second corresponding curve) according to the working mode so as to obtain a corresponding temperature mapping table according to the mapping rule and the detected water temperature.
In an exemplary embodiment of the present invention, the method may further include: and before determining the current working mode according to the mark of the working mode flag bit, performing logic OR operation on a plurality of working mode flag bits to select the working mode flag bit set as the first mark.
In an exemplary embodiment of the present invention, the aforementioned B and D may be logically or-ed, where a ═ B | | D, a may display that the insulation table is used for conversion when a is valid, and a may be used for water meter burning when a is invalid.
In the exemplary embodiment of the invention, the working states of respectively using the water boiling meter and the heat preservation meter are distinguished by setting the flag bit variable, so that the use switching of the temperature-AD meter under different working states is completed, and the temperature display precision under each working state is ensured to be better.
EXAMPLE III
The embodiment provides an embodiment of a setting scheme of the temperature measuring resistor on the basis of any embodiment.
In an exemplary embodiment of the present invention, the electric kettle may include: a temperature measuring resistor; the temperature measuring resistor is used for detecting the water temperature in real time;
the temperature measuring resistor can adopt a contact temperature measuring method to detect the water temperature;
the contact type temperature measuring method comprises the following steps: the temperature measuring resistor is inserted into the water in the electric kettle to detect the water temperature.
In an exemplary embodiment of the present invention, the electric kettle may include: a temperature measuring resistor; the temperature measuring resistor is used for detecting the water temperature in real time;
the temperature measuring resistor detects the water temperature by adopting a non-contact temperature measuring method;
the non-contact temperature measurement method comprises the following steps: and the temperature measuring resistor is assembled at the cold end of the heating pipe in the electric kettle to detect the water temperature.
In an exemplary embodiment of the present invention, the contact type temperature measuring scheme is to directly measure the temperature of water by inserting an NTC into the water in the kettle. Due to the irregular shape of the heating tube, the water temperature inside the kettle is not even, and the NTC is generally installed at the cold end of the heating tube, there is a delay between the measured temperature of the NTC and the actual water temperature in the heating state (referred to as power mode). And the temperature measurement delay can be ignored under the non-power modes such as heat preservation, standby and the like.
In the exemplary embodiment of the invention, by adopting the scheme of the second embodiment of the invention and two temperature-AD tables for temperature display, the problem of low display accuracy caused by time delay between the measured temperature and the actual water temperature is solved, and the temperature display accuracy is higher. Therefore, the temperature measuring resistor in the scheme of the embodiment of the invention can adopt a contact temperature measuring method to detect the water temperature and can also adopt a non-contact temperature measuring method to detect the water temperature. However, the temperature display accuracy of the contact temperature measurement scheme is higher than that of the non-contact temperature measurement scheme.
Example four
This embodiment provides an embodiment of a solution for adjusting the first mapping table and the second mapping table according to the amount of water, based on any of the above embodiments.
In an exemplary embodiment of the present invention, the method may further include: and adjusting the mapping rule according to different water quantities.
In an exemplary embodiment of the present invention, the corrected temperature-AD tables (i.e., the first mapping table and the second mapping table) may be debugged according to the amount of water (0.5-1.7L) of the applicable electric kettle or health preserving kettle.
In the exemplary embodiment of the invention, the delay time of the temperature measurement by the NTC in the heating process is different under different water amounts. The general rule is that the smaller the water quantity is, the larger the temperature measurement delay is, so the temperature-AD meter in the water boiling process can be adjusted according to the detected different water quantities, and the temperature display precision is further improved.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
Claims (10)
1. A temperature display method of an electric kettle is characterized by comprising the following steps:
detecting the water temperature in real time in the working process of the electric kettle;
acquiring a corresponding temperature mapping table according to the current working mode and the detected water temperature; the temperature mapping table is a pre-established corresponding table between the actual water temperature and the detected water temperature;
displaying the current water temperature in real time according to the actual water temperature in the temperature mapping table;
different working modes respectively correspond to different temperature mapping tables, and the different temperature mapping tables are obtained according to different mapping rules.
2. A method for displaying temperature of an electric kettle according to claim 1, wherein the operation mode comprises: a power mode and a no power mode; the temperature mapping table includes: a first mapping table and a second mapping table; the power mode refers to a mode that the heating power is greater than a preset power threshold, and the no-power mode refers to a mode that the heating power is less than or equal to the preset power threshold;
the active power mode corresponds to the first mapping table; the no-power mode corresponds to the second mapping table.
3. A method of displaying temperature of an electric kettle according to claim 2, wherein the powered mode comprises: a heating mode; the no power mode includes: a heat preservation mode, a standby mode and a function selection mode; the first mapping table includes: a heating map, the second map comprising: a heat preservation mapping table;
the heating mode corresponds to the heating mapping table; the heat preservation mode, the standby mode and the function selection mode correspond to the heat preservation mapping table.
4. A method of displaying a temperature of an electric kettle according to claim 1, further comprising: the method comprises the steps of enabling different working modes to correspond to one working mode zone bit respectively, setting the working mode zone bit corresponding to the working mode to be a first mark when the electric kettle is in any one working mode, and clearing the working mode zone bit corresponding to the working mode when the electric kettle is not in the working mode.
5. A method of displaying a temperature of an electric kettle according to claim 4, further comprising: determining the current working mode according to the mark of the working mode mark bit; and calling a corresponding mapping rule according to the working mode so as to obtain a corresponding temperature mapping table according to the mapping rule and the detected water temperature.
6. A method of displaying a temperature of an electric kettle according to claim 5, further comprising: and before determining the current working mode according to the mark of the working mode flag bit, performing logic OR operation on a plurality of working mode flag bits to select the working mode flag bit set as the first mark.
7. A method of displaying temperature of an electric kettle according to any one of claims 1-6, characterized in that the electric kettle comprises: a temperature measuring resistor; the temperature measuring resistor is used for detecting the water temperature in real time;
the temperature measuring resistor detects the water temperature by adopting a contact temperature measuring method;
the contact type temperature measuring method comprises the following steps: the temperature measuring resistor is inserted into the water in the electric kettle to detect the water temperature.
8. A method of displaying temperature of an electric kettle according to any one of claims 1-6, characterized in that the electric kettle comprises: a temperature measuring resistor; the temperature measuring resistor is used for detecting the water temperature in real time;
the temperature measuring resistor detects the water temperature by adopting a non-contact temperature measuring method;
the non-contact temperature measurement method comprises the following steps: and the temperature measuring resistor is assembled at the cold end of the heating pipe in the electric kettle to detect the water temperature.
9. A method of displaying temperature of an electric kettle according to any one of claims 1-6, characterized in that the method further comprises: and adjusting the mapping rule according to different water quantities.
10. A method of displaying a temperature of an electric kettle according to any of claims 1-6, wherein the temperature map comprises: and the mapping table is used for mapping the actual water temperature to the modulus AD value.
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