CN112484087B - Cold state identification method of kitchen range and kitchen range thereof - Google Patents
Cold state identification method of kitchen range and kitchen range thereof Download PDFInfo
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- CN112484087B CN112484087B CN202011088257.9A CN202011088257A CN112484087B CN 112484087 B CN112484087 B CN 112484087B CN 202011088257 A CN202011088257 A CN 202011088257A CN 112484087 B CN112484087 B CN 112484087B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000010411 cooking Methods 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims description 11
- 239000000126 substance Substances 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
Abstract
The invention discloses cold state identification of a cooking utensilThe method and the cooker thereof comprise the steps of S1: igniting the stove for operation; s2: obtaining and storing current temperature value T i (ii) a S3: judging the current temperature value T i Whether the temperature is smaller than or equal to the cold-state temperature threshold value or not is judged, if yes, the cooker is preliminarily judged to be in a cold state, the next step is carried out, and if not, the step S2 is returned; s4: calculating the current temperature value T i With the last stored current temperature value T i‑1 Starting to record the duration of the cold state at the same time; s5: and judging the magnitude relation between the temperature difference and the reference value, determining whether to clear the timing or not based on the judgment result, and returning to the step S2. The invention can preliminarily judge whether the stove is in a cold state or not and whether the stove is flamed out or not according to the change condition of the temperature of the bottom of the pot, thereby effectively solving the problem of misjudgment caused by impact or pot moving of cold-state substances.
Description
Technical Field
The invention relates to the technical field of cooking utensils, in particular to a cold state identification technology of a cooking utensil.
Background
In the cooking process of the household gas cooker, when the furnace end is accidentally flamed out or the dry combustion protection is flamed out, the control system generally needs to monitor whether the temperature of the bottom of the cooker is reduced to a cold state or not so as to prepare for cooking the food material at the next time.
At present, the conventional method for judging cold state usually takes whether the temperature of the bottom of a pan is lower than a certain fixed low temperature value as a judgment basis. However, when cold substances are impacted (such as water is added) or the pan is moved, misjudgment is easy to occur, and the stove is shut down passively, so that users can question products.
Disclosure of Invention
The invention aims to solve one of the problems in the prior related art at least to a certain extent, and therefore the invention provides a cold state identification method of a stove, which can preliminarily judge whether the stove is in a cold state or not and whether the stove is flamed out or not, and effectively solves the problem of misjudgment caused by impact or pan moving of cold state substances.
The invention also provides a cooker with the cold state identification method.
According to the cold state identification method of the kitchen range, the cold state identification method is realized through the following technical scheme:
a cold state identification method of a kitchen range comprises the following steps:
s1: igniting the stove for operation;
s2: acquiring and storing a current temperature value Ti;
s3: judging whether the current temperature value Ti is less than or equal to a cold state temperature threshold value, if so, preliminarily judging that the cooker is in a cold state and entering the next step, otherwise, returning to the step S2;
s4: calculating the temperature difference between the current temperature value Ti and the last stored current temperature value Ti-1, and simultaneously starting to record the duration time of the cold state;
s5: and judging the magnitude relation between the temperature difference and the reference value, determining whether to clear the timing or not based on the judgment result, and returning to the step S2.
In some embodiments, if the temperature difference is greater than or equal to the reference value, the timing is cleared and the process returns to step S2; and if the temperature difference is smaller than the reference value, preliminarily judging that the cooker is flameout.
In some embodiments, after the preliminary determination that the cooktop has extinguished, the method further includes step S6: judging whether the duration time of the cold state is greater than or equal to a time threshold value, if so, further determining that the cooker is flameout and in the cold state, resetting the timing and turning off the power supply of the cooker; if not, the step S6 is executed or the step S2 is returned to.
In some embodiments, the reference value is 1 to 3 ℃.
In some embodiments, the obtaining and storing a current temperature value Ti specifically includes:
s21: acquiring a temperature data set; s22: and calculating and storing an average temperature value according to the acquired temperature data set, and taking the latest stored average temperature value as the current temperature value Ti.
In some embodiments, the acquiring of the temperature data set is performed by acquiring the temperature data value once every preset time interval, and acquiring the temperature data set N times.
In some embodiments, in step S22, the average temperature value is any one of a mean value, a median value, and a mode.
According to the cooking utensils that provide above-mentioned, it realizes through following technical scheme:
a stove comprises a burner body, an ignition module, a temperature detection module, a gas control valve, a power supply module and a control module, wherein the control module is respectively and electrically connected with the ignition module, the temperature detection module, the gas control valve and the power supply module; and the device is also used for preliminarily judging whether the cooker is in a cold state or not according to the size relation between the current temperature value Ti and the cold state temperature threshold value.
In some embodiments, the range further comprises a timing module electrically connected with the control module, and after the range is preliminarily determined to be in a cold state, the control module is configured to calculate a temperature difference between the current temperature value Ti and a last stored current temperature value Ti-1, and simultaneously control the timing module to start recording the duration of the cold state.
In some embodiments, the control module is further configured to determine a magnitude relationship between the temperature difference and a reference value, and determine whether to clear the cold state duration recorded by the timing module based on the determination result.
Compared with the prior art, the invention at least comprises the following beneficial effects:
according to the invention, whether the stove is in a cold state or not and whether the stove is flamed out or not can be preliminarily judged according to the change condition of the temperature of the bottom of the pot, so that the problem of misjudgment caused by impact of cold-state substances or pot moving is effectively solved, and the judgment accuracy and reliability are improved.
Drawings
FIG. 1 is a connection block diagram of a cooking appliance in embodiment 1 of the present invention;
FIG. 2 is a flow chart of a cold state identification method of a cooker in embodiment 1 of the invention;
FIG. 3 is a sub-flowchart of step S2 of FIG. 2;
fig. 4 is a flowchart of a cold state identification method for a cooker in embodiment 2 of the present invention.
Detailed Description
The following examples illustrate the present invention, but the present invention is not limited to these examples. Modifications to the embodiments of the invention or equivalent substitutions of parts of technical features without departing from the spirit of the invention are intended to be covered by the scope of the claims of the invention.
Example 1
Referring to fig. 1, the embodiment provides a kitchen range, which includes a burner body 1, an ignition module 2, a temperature detection module 3, a gas control valve 4, a power supply module 5 and a control module 6, wherein the burner body 1 at least includes a burner, and the ignition module 2 for ignition and the temperature detection module 3 for detecting the temperature of the bottom of a boiler are arranged on the burner body 1. The gas control valve 4 is respectively connected with an external gas source and the burner body 1 and is used for controlling the on-off of gas and the firepower of the stove. The control module 6 is respectively and electrically connected with the ignition module 2, the temperature detection module 3, the gas control valve 4 and the power supply module 5, and the power supply module 5 is used for providing power for relevant modules of the cooker. Preferably, the control module 6 is configured to obtain the temperature data set through the temperature detection module 3, calculate and store an average temperature value according to the obtained temperature data set, and use the latest stored average temperature value as the current temperature value T i (ii) a And also for determining the current temperature value T i And preliminarily judging whether the cooker is in a cold state or not according to the size relation with the cold state temperature threshold value. Thus, the cooking range of the embodiment can be used for controlling the temperature of the cooking range according to the current temperature value T i And the relation between the temperature and the cold temperature threshold value can preliminarily judge whether the cooker is in a cold state or not.
Further, still include timing module 7 with control module 6 electricity is connected, after control module 6 tentatively judges that cooking utensils are in the cold attitude, control module 6 still is used for calculating current temperature value T i With the last stored current temperature value T i-1 The timing module 7 is controlled to start recording the cold state duration time so as to provide judgment data for preliminarily judging that the cooker is flameout.
Preferably, the control module 6 of this embodiment is further configured to determine a magnitude relationship between the temperature difference and a reference value, and determine whether to clear the cold duration recorded by the timing module 7 based on the determination result, where in this embodiment, the reference value is 1 to e3 ℃ is adopted. Therefore, when the cold state duration recorded by the timing module 7 is determined to be zero based on the judgment result, the stove is indicated to be not flameout at the moment, still in a combustion state and has the current temperature value T i The temperature threshold value is less than or equal to the cold state temperature threshold value, which is caused by the impact (such as water adding) of cold state substances on the pot or the pot moving, and the reason is an interference factor; when it is determined that the cold state duration recorded by the timing module 7 is not cleared based on the determination result, it may be preliminarily determined that the cooker has been turned off. It can be seen that the cooking utensils of this embodiment, it can be according to the situation of change of pot bottom temperature, whether preliminary judgement cooking utensils have stalled, has effectively solved the problem that causes the erroneous judgement because of cold state material strikes or moves the pot, improves and judges accuracy and reliability.
Referring to fig. 2, the present embodiment further provides a cold state identification method for a kitchen range, where the cold state identification method includes the following steps:
s1: igniting the stove to work;
specifically, when the stove receives an ignition signal, the control module 6 controls the ignition module 2 to discharge electricity and then controls the gas control valve 4 to open, so that the stove is ignited successfully. And when the stove is ignited successfully, the stove is executed according to a normal cooking program.
S2: obtaining and storing current temperature value T i ；
S3: judging the current temperature value T i Whether the temperature is smaller than or equal to the cold-state temperature threshold value or not is judged, if yes, the stove is preliminarily judged to be in a cold state, the next step is carried out, and if not, the step S2 is returned;
specifically, the cold temperature threshold is a critical temperature point at which the temperature of the burner body 1 is switched from the hot state to the cold state, and the cold temperature threshold is equal to 50 ℃ in this embodiment. The control module 6 judges the current temperature value T i Whether the temperature is less than or equal to the cold temperature threshold value or not, if the control module 6 judges that the current temperature value T is i The temperature is less than or equal to the cold state temperature threshold value, the temperature of the pot bottom is suddenly reduced due to the impact of cold state substances (such as water adding) on the pot or the pot moving, at the moment, the cooker can be judged to be in the cold state primarily, and the step S4 is carried out; if the control module 6 judges the current temperature value T i If the temperature is higher than the cold state temperature threshold value, returning to the stepS2, executing the next group of obtaining and storing the current temperature value T i 。
S4: calculating the current temperature value T i With the last stored current temperature value T i-1 And simultaneously starting to record the duration of the cold state;
in particular, the current temperature value T i With the current temperature value T i-1 Two sets of temperature values stored before and after the control module 6. In determining the current temperature value T i Less than or equal to the cold state temperature threshold value, namely after the stove is preliminarily judged to be in the cold state, the control module 6 starts to calculate the current temperature value T i With the last stored current temperature value T i-1 And at the same time, the timing module 7 is controlled to start recording the cold state duration of the burner body 1.
S5: and judging the magnitude relation between the temperature difference and the reference value, determining whether to clear the timing or not based on the judgment result, and returning to the step S2.
Specifically, the reference value is 1 to 3 ℃. According to the temperature difference calculated in the step S4, the control module 6 judges the magnitude relation between the temperature difference and the reference value, if the temperature difference is larger than or equal to the reference value, the temperature detection module 3 indicates that the temperature of the pot bottom detected still tends to rise, which means that the stove is not flamed out, and still in an ignition combustion working state, at the moment, the timing is cleared and returned to the step S2, and the next group of acquisition and storage of the current temperature value T are carried out i (ii) a If the temperature difference is smaller than the reference value, the temperature of the pot bottom basically has no rising trend at the moment, and the stove can be preliminarily judged to be flameout.
Therefore, the cold state identification method for the kitchen range can preliminarily judge whether the kitchen range is in a cold state or not and whether the kitchen range is flamed out or not according to the change condition of the temperature of the bottom of the pot, effectively solves the problem of misjudgment caused by impact of cold state substances or pot moving, and improves the judgment accuracy and reliability.
Referring to fig. 3, preferably, in step S2, the current temperature value T is obtained and stored i The method specifically comprises the following steps:
s21: acquiring a temperature data set;
specifically, the temperature data acquisition module 3 acquires the temperature data value once every preset time interval, and acquires N temperature data values for N times in total, where the N temperature data values constitute the temperature data set.
S22: calculating and storing an average temperature value according to the acquired temperature data set, and taking the latest stored average temperature value as the current temperature value T i 。
Specifically, according to the acquired temperature data set, the control module 6 calculates an average temperature value of the acquired temperature data set, and takes the calculated average temperature value as the current temperature value T i And (5) storing. When the control module 6 obtains the average temperature value of the next group, the average temperature value of the next group is updated to the current temperature value T i And so on. More specifically, the average temperature value is any one of the mean value, the median and the mode, and the present embodiment takes the average temperature value as the mean value as an example to simplify the calculation method and improve the calculation speed and the reaction sensitivity.
Therefore, the N temperature data values form a temperature data group, and the average temperature value is obtained by calculating the obtained temperature data group, so that disturbance factors can be effectively filtered, and the accuracy of the result is improved.
Example 2
Referring to fig. 4, the present embodiment is different from embodiment 1 in that, after the preliminary determination that the stove has been extinguished, the cold state identification method further includes step S6. Specifically, the step S6: judging whether the cold state duration time is greater than or equal to a time threshold value, if so, further determining that the stove is flamed out and is in a cold state, resetting the cold state duration time recorded by the timing module 7, and cutting off the power supply of the power supply module 5 to the relevant modules to realize the turning off of the power supply of the stove, wherein at the moment, the temperature detection module 3 does not detect the temperature any more, and the stove enters a waiting next awakening state; if not, the step S6 is executed or the step S2 is returned to. Preferably, the time threshold of this embodiment is 5 minutes, and the other parts are the same as those of embodiment 1.
It can be seen that after the cooking utensil is preliminarily judged to be flamed out, the cooking utensil is further determined to be flamed out and in a cold state according to the size relation between the cold state duration and the time threshold, and the accuracy and the reliability of cold state identification of the cooking utensil are higher through multiple judgment steps.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A cold state identification method of a cooker is characterized by comprising the following steps:
s1: igniting the stove for operation;
s2: obtaining and storing current temperature value T i ；
S3: judging the current temperature value T i Whether the temperature of the burner body is less than or equal to a cold-state temperature threshold value or not is judged, wherein the cold-state temperature threshold value is a critical temperature point of switching the temperature of the burner body from a hot state to a cold state, if so, the cooker is preliminarily judged to be in the cold state and enters the next step, and if not, the step S2 is returned;
s4: calculating the current temperature value T i The last stored current temperature value T i-1 Starting to record the duration of the cold state at the same time;
s5: judging the magnitude relation between the temperature difference and the reference value, if the temperature difference is larger than or equal to the reference value, resetting the timing and returning to the step S2; if the temperature difference is smaller than the reference value, the stove is preliminarily judged to be flameout.
2. A cold state identification method for a cooking appliance according to claim 1, wherein after said preliminary determination that the cooking appliance has been extinguished, further comprising step S6: judging whether the duration time of the cold state is greater than or equal to a time threshold value, if so, further determining that the cooker is flameout and in the cold state, resetting the timing and turning off the power supply of the cooker; if not, the step S6 is executed or the step S2 is returned to.
3. The cold state identification method for the kitchen range according to claim 1, wherein the reference value is 1-3 ℃.
4. The cold state identification method for the kitchen range according to claim 1, wherein the current temperature value T is obtained and stored i The method specifically comprises the following steps:
s21: acquiring a temperature data set;
s22: calculating and storing an average temperature value according to the acquired temperature data group, and taking the latest stored average temperature value as a current temperature value T i 。
5. The cold state identification method for the cooking appliance according to claim 4, wherein the temperature data set is acquired by acquiring the temperature data value once every preset time and acquiring the temperature data set N times.
6. The cold state identification method for the kitchen range according to claim 4, wherein in step S22, the average temperature value is any one of a mean value, a median value and a mode.
7. A kitchen range, comprising a burner body (1), an ignition module (2), a temperature detection module (3), a gas control valve (4), a power supply module (5) and a control module (6), wherein the control module (6) is electrically connected with the ignition module (2), the temperature detection module (3), the gas control valve (4) and the power supply module (5) respectively, the kitchen range is characterized in that the kitchen range applies the cold state identification method of the kitchen range according to any one of claims 1-6, the control module (6) is used for calculating and storing an average temperature value according to a temperature data set obtained by the temperature detection module (3), and taking the latest stored average temperature value as a current temperature value T i (ii) a And also for determining the current temperature value T i And preliminarily judging whether the cooker is in a cold state or not according to the size relation with the cold state temperature threshold value.
8. Hob according to claim 7, characterized in that it further comprises a timing module (7) electrically connected to said control module (6), said control module (6) being adapted to calculate said current temperature value T after a preliminary determination that the hob is in a cold state i The last stored current temperature value T i-1 And simultaneously controlling the timing module (7) to start recording the duration of the cold state.
9. The cooking appliance according to claim 8, wherein the control module (6) is further configured to determine a magnitude relationship between the temperature difference and a reference value, and determine whether to clear the cold state duration recorded by the timing module (7) based on the determination result.
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