CN116126050A - Oven heating control method and system, electronic equipment and storage medium - Google Patents
Oven heating control method and system, electronic equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a heating control method and system of an oven, electronic equipment and a storage medium. The cavity of the oven is provided with a temperature sensor and a heating pipe; the heating control method comprises the following steps: acquiring a first set temperature and a second set temperature; determining a temperature correction coefficient based on the first set temperature and the second set temperature; correcting the actual temperature based on the temperature correction coefficient to obtain the cavity center temperature; determining an initial calculated heating duration based on the set temperature and the cavity center temperature; correcting the initial calculated heating time length to obtain the heating time length; and controlling the heating pipe to run according to the heating time. According to the invention, the temperatures of the two temperature sensors are adopted to correct the cavity center temperature of the oven, the accurate heating time of food is obtained based on the cavity center temperature, and the heating pipe of the oven is controlled to run in the corrected heating time, so that the cooking effect that the food has enough temperature difference between the upper and lower sides is achieved.
Description
Technical Field
The invention relates to the field of oven heating control, in particular to an oven heating control method and system, electronic equipment and storage medium.
Background
In actual life, along with the use scene and the use frequency of the oven are gradually increased, but the oven used in the existing life mainly sets a certain temperature, after the oven reaches the temperature, the temperature is maintained to be stable, and the oven carries out heat radiation and energy transfer on food through high temperature, so that the cooking process of the food is carried out, but some foods need different cooking temperatures to achieve a specific effect. The cooking mode of the existing oven mainly comprises the steps of setting a certain temperature, after the temperature of the oven is reached, maintaining the temperature of the oven to be stable, carrying out heat radiation on food in the oven through high temperature to carry out energy transfer, and cooking the food, wherein the temperature acquired by a temperature sensor in the oven is the temperature at a certain position of an oven cavity, a gap exists between the temperature acquired by the temperature sensor and the temperature of the center of the cavity of the oven, the temperature of the center of the cavity of the oven is smaller than the temperature acquired by the temperature sensor, so that the temperature received by the food does not reach the temperature acquired by the temperature sensor, and a temperature error exists, so that the food possibly cannot meet cooking requirements due to insufficient temperature received by the food. In the prior art, the cooking time of the oven for food is set by the temperature of the oven cavity obtained by the temperature sensor, but the temperature sensor is generally not arranged in the center of the cavity, and the food in the oven cavity is heated by the heat radiation of the set temperature of the heating pipe in the oven, so that the food cannot reach the expected desired cooking effect, and the temperature requirement of the food cannot be fully met.
Disclosure of Invention
The invention aims to overcome the defect that a single temperature sensor machine cannot accurately control the temperature difference between the upper and lower surfaces of food in the prior art, so that the accurate heating time of the food cannot be obtained.
The invention solves the technical problems by the following technical scheme:
in a first aspect, a heating control method of an oven is provided, wherein a cavity of the oven is provided with a temperature sensor and a heating pipe; the temperature sensor comprises a first temperature sensor arranged at the top of the oven and a second temperature sensor arranged at the bottom of the oven, and the heating pipes comprise a first heating pipe arranged at the top of the oven and a second heating pipe arranged at the bottom of the oven; the heating control method comprises the following steps:
acquiring a first set temperature of an upper cavity of the oven and a second set temperature of a lower cavity of the oven;
acquiring actual temperatures detected by the first temperature sensor and the second temperature sensor;
determining a temperature correction coefficient based on the first set temperature and the second set temperature;
Correcting the first actual temperature detected by the first temperature sensor based on the temperature correction coefficient to obtain a first cavity center temperature;
correcting the second actual temperature detected by the second temperature sensor based on the temperature correction coefficient to obtain a second cavity center temperature;
determining an initial calculated heating duration based on the first set temperature and the first cavity center temperature;
determining a first time length correction coefficient according to the first set temperature and the first cavity center temperature;
determining a second duration correction coefficient according to the second set temperature and the second cavity center temperature;
correcting the initial calculated heating time length based on the first time length correction coefficient to obtain a first heating time length;
correcting the initial calculated heating time length based on the second time length correction coefficient to obtain a second heating time length;
controlling the first heating pipe to run according to the first heating time length;
and controlling the second heating pipe to run according to the second heating time.
Optionally, the determining the temperature correction coefficient based on the first set temperature and the second set temperature includes:
If the second set temperature is greater than or equal to the first set temperature, the temperature correction coefficient is a first temperature correction coefficient;
if the second set temperature is smaller than the first set temperature, the temperature correction coefficient is a second temperature correction coefficient; wherein the second temperature correction coefficient is greater than the first temperature correction coefficient.
Optionally, the determining the temperature correction coefficient based on the first set temperature and the second set temperature further includes:
if the oven meets the first state and the duration of the first state is less than or equal to a duration threshold, the temperature correction coefficient is a third temperature correction coefficient; when the oven meets a first state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature;
if the oven meets the first state and the duration of the first state is longer than a duration threshold, the temperature correction coefficient is a fourth temperature correction coefficient; wherein the third temperature correction coefficient is less than the fourth temperature correction coefficient;
If the oven meets the second state, the temperature correction coefficient is a fifth temperature correction coefficient; when the oven meets a second state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is less than the first set temperature; the fifth temperature correction coefficient is smaller than the fourth temperature correction coefficient.
Optionally, the heating control method further includes:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature, obtaining a first heating duration based on the sum of the initial calculated heating duration and a first time duration compensation amount; the first time length compensation quantity is the product of the first set temperature and a first time length correction coefficient;
if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature, obtaining a second heating duration based on the sum of the initial calculated heating duration and a second duration compensation amount; the second time length compensation amount is the product of the second set temperature and a second time length correction coefficient;
If the oven meets the first state, obtaining a third heating duration based on the sum of the initial calculated heating duration and a third duration compensation amount; the third time length compensation amount is the product of the second set temperature and a third time length correction coefficient, and when the oven meets a first state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature.
Optionally, the heating control method further includes:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the sum of the second cavity center temperature and a second temperature fluctuation threshold, obtaining a first heating duration based on the sum of the initial calculated heating duration and a first time duration compensation amount; the first time length compensation quantity is the product of the first set temperature and a first time length correction coefficient;
if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the sum of the first cavity center temperature and a first temperature fluctuation threshold, obtaining a second heating duration based on the sum of the initial calculated heating duration and a second duration compensation amount; the second time length compensation amount is the product of the second set temperature and a second time length correction coefficient.
Optionally, the oven is further provided with a back fan; the heating control method further includes:
if the top of the oven is in a state of not completing preheating, controlling to start the back fan;
if the bottom of the oven is in a state of not completing preheating, controlling to start the back fan;
and if the top of the oven and the bottom of the oven are in a heat preservation state, controlling to close the back fan.
Optionally, the heating pipe further comprises a third heating pipe arranged at the back of the oven; controlling the first heating pipe to run according to the first heating time length; controlling the second heating pipe to run according to the second heating time length comprises:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature, controlling the first heating pipe to run in a first time period of the first heating time period, controlling the third heating pipe to run in a second time period of the first heating time period, and enabling the sum of the first time period and the second time period to be the first heating time period;
if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature, controlling the second heating pipe to operate in a first time period of the second heating time period, controlling the third heating pipe to operate in a second time period of the second heating time period, and enabling the sum of the first time period and the second time period to be the second heating time period;
If the oven meets the second state, controlling a first heating pipe to run in a first time period of initial calculated heating time period, and controlling a second heating pipe to run in a second time period of initial calculated heating time period, wherein the sum of the first time period and the second time period is the initial calculated heating time period, and when the oven meets the second state, the second cavity center temperature is more than or equal to the second set temperature, the first cavity center temperature is more than or equal to the first set temperature, and the second set temperature is less than the first set temperature;
if the oven meets the first state, controlling the first heating pipe to run in a first time period of a third heating time period, controlling the second heating pipe to run in a second time period of the third heating time period, wherein the sum of the first time period and the second time period is the third heating time period, and when the oven meets the first state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature.
Optionally, the heating pipe further comprises a third heating pipe arranged at the back of the oven; controlling the first heating pipe to run according to the first heating time length; controlling the operation of the second heating pipe according to the second heating duration further includes:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the sum of the second cavity center temperature and a second temperature fluctuation threshold, controlling the first heating pipe to run in a first time period of the first heating duration, controlling the third heating pipe to run in a second time period of the first heating duration, and enabling the sum of the first time period and the second time period to be the first heating duration;
if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the sum of the first cavity center temperature and a first temperature fluctuation threshold, controlling the second heating pipe to run in a first time period of the second heating duration, controlling the third heating pipe to run in a second time period of the second heating duration, and enabling the sum of the first time period and the second time period to be the second heating duration.
In a second aspect, a heating control system of an oven is provided, wherein a cavity of the oven is provided with a temperature sensor and a heating pipe; the temperature sensor comprises a first temperature sensor arranged at the top of the oven and a second temperature sensor arranged at the bottom of the oven, and the heating pipes comprise a first heating pipe arranged at the top of the oven and a second heating pipe arranged at the bottom of the oven; the heating control system includes:
a first acquisition module for acquiring a first set temperature of an upper cavity of the oven and a second set temperature of a lower cavity of the oven;
the second acquisition module is used for acquiring the actual temperatures detected by the first temperature sensor and the second temperature sensor;
a temperature correction module for determining a temperature correction coefficient based on the first set temperature and the second set temperature;
the first temperature determining module is used for correcting the first actual temperature detected by the first temperature sensor based on the temperature correction coefficient to obtain the central temperature of the first cavity;
the second temperature determining module is used for correcting the second actual temperature detected by the second temperature sensor based on the temperature correction coefficient to obtain the center temperature of the second cavity;
The initial heating module is used for determining initial calculated heating duration based on the first set temperature and the first cavity center temperature;
the first correction duration module is used for determining a first time length correction coefficient according to the first set temperature and the first cavity center temperature;
the second time length correction module is used for determining a second time length correction coefficient according to the second set temperature and the second cavity center temperature;
the first correction heating module is used for correcting the initial calculated heating time length based on the first time length correction coefficient to obtain a first heating time length;
the second correction heating module is used for correcting the initial calculated heating time length based on the second time length correction coefficient to obtain a second heating time length;
the first operation module is used for controlling the first heating pipe to operate according to the first heating time length;
and the second operation module is used for controlling the operation of the second heating pipe according to the second heating time length.
In a third aspect, there is provided an electronic device comprising a memory, a processor and a computer program stored on the memory for running on the processor, the processor implementing a method of controlling heating of an oven according to any one of the preceding claims when executing the computer program.
In a fourth aspect, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of controlling heating of an oven as described in any one of the above.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The invention has the positive progress effects that: according to the invention, the temperatures of the two temperature sensors are adopted to correct the cavity center temperature of the oven, the accurate heating time of food is obtained based on the cavity center temperature, and the heating pipe of the oven is controlled to run in the corrected heating time, so that the cooking effect that the food has enough temperature difference between the upper and lower sides is achieved.
Drawings
FIG. 1 is a flow chart of a method for controlling heating of an oven according to an exemplary embodiment of the present invention;
FIG. 2 is a flowchart of another method for controlling heating of an oven according to an exemplary embodiment of the present invention;
FIG. 3 is a block diagram of a heating control system of an oven according to an exemplary embodiment of the present invention;
fig. 4 is a block diagram of an electronic device according to an exemplary embodiment of the present invention.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention.
The embodiment provides a heating control method of an oven. The temperature sensor comprises a first temperature sensor arranged at the top of the oven and a second temperature sensor arranged at the bottom of the oven, and the heating pipe comprises a first heating pipe arranged at the top of the oven, a second heating pipe arranged at the bottom of the oven and a third heating pipe arranged at the back of the oven.
As shown in fig. 1, the method comprises the steps of:
The cavity is divided into an upper cavity and a lower cavity based on food. The temperatures of the upper cavity and the lower cavity of the oven are set according to the expected temperature values set for the upper cavity and the lower cavity of the oven according to the expected temperatures of the foods in the oven. For example, when the temperature required for the upper part of the food is a ℃, the temperature required for the lower part of the food is B ℃, the temperature of the upper cavity of the oven is set to a ℃, and the temperature of the lower cavity of the oven is set to B ℃.
The temperature of the oven cavity is detected through the temperature sensor, the actual temperature on the oven cavity is obtained, but the temperature sensor is generally not arranged in the center of the oven cavity, so that the temperature detected by the temperature sensor cannot accurately represent the center temperature of the oven cavity. In the heating process, the heating pipe transmits energy to food in the oven cavity through heat radiation, so that the temperature detected by the temperature sensor is required to be corrected to the central temperature of the oven cavity. The temperature sensor detects the temperature of the oven cavity to obtain a temperature, but in fact, the temperature of the cavity center of the oven is not necessarily the same as the temperature detected by the temperature sensor, so that the temperature detected by the temperature sensor needs to be corrected to the cavity center to determine the heating time of the heating pipe based on the corrected cavity center temperature.
In one embodiment, the temperature correction coefficient is determined based on the first set temperature and the second set temperature, where the temperature correction coefficient refers to a coefficient value for correcting the temperature detected by the temperature sensor to the center of the oven cavity, and during the preheating process, the first set temperature and the second set temperature are corrected to ensure that the rising rate of the upper cavity temperature of the oven is substantially consistent with the rising rate of the lower cavity temperature of the oven, and if a certain cavity temperature of the oven does not reach the set temperature, the cavity temperature of another oven meeting the condition can not exceed the set temperature too much.
104, correcting the first actual temperature detected by the first temperature sensor based on the temperature correction coefficient to obtain the central temperature of the first cavity; and correcting the second actual temperature detected by the second temperature sensor based on the temperature correction coefficient to obtain the center temperature of the second cavity.
Comparing the first set temperature with the second set temperature, if the second set temperature is greater than or equal to the first set temperature, determining a first temperature correction coefficient, correcting the first actual temperature detected by the first temperature sensor based on the first temperature correction coefficient, and determining the center temperature of the first cavity; correcting the second actual temperature detected by the second temperature sensor based on the first temperature correction coefficient, and determining the center temperature of the second cavity; if the first set temperature is greater than the second set temperature, a second temperature correction coefficient is determined, the first actual temperature detected by the first temperature sensor is corrected based on the second temperature correction coefficient, the first cavity center temperature is determined, the second actual temperature detected by the second temperature sensor is corrected based on the second temperature correction coefficient, and the second cavity center temperature is determined. The first heating pipe is a heating pipe arranged at the top of the oven cavity, the second heating pipe is a heating pipe arranged at the bottom of the oven cavity, the first set temperature is the set temperature of the upper cavity of the oven, and the second set temperature is the set temperature of the lower cavity of the oven. When food is cooked, the cavity is divided into an upper cavity and a lower cavity by taking the food as a reference, the central temperature of the first cavity is the central temperature of the upper cavity of the oven, and the central temperature of the second cavity is the central temperature of the lower cavity of the oven; the first cavity center temperature and the second cavity center temperature can be one position or two positions, and the first cavity center temperature and the second cavity center temperature are set according to actual conditions.
For example, when the first set temperature of the oven is T1 and the second set temperature of the oven is T2, if T2 is greater than or equal to T1, determining that the temperature correction coefficient of the oven cavity is A1, correcting the first actual temperature to obtain a first cavity center temperature t5=a1×t3, and correcting the second actual temperature to obtain a second cavity center temperature t6=a1×t4; if T2 is less than T1, determining that the temperature correction coefficient of the cavity of the oven is A2, at this time, correcting the first actual temperature when the first actual temperature detected by the temperature sensor is T3, to obtain a first cavity center temperature t5=a2×t3, and correcting the second actual temperature when the second actual temperature detected by the temperature sensor is T4, to determine a second cavity center temperature t6=a2×t4 of the oven.
In one embodiment, the actual temperature obtained by the temperature sensor is corrected for the central temperature of the oven cavity, the PID algorithm is used to calculate the central temperature of the first cavity of the oven and the first set temperature, so as to obtain the initial calculated heating duration, where T1' =kp (first set temperature-initial value of central temperature of the first cavity of the period) +ki (sum of central temperatures of the first cavity of the period-first set temperature-number of collected data) +kd (initial value of central temperature of the first cavity of the period-final value of central temperature of the first cavity of the period). T1' refers to the initial calculation heating time length, kp is a proportional adjustment coefficient, and the adjustment precision can be improved and the error can be quickly adjusted in PID calculation; ki is an integral adjustment coefficient, which can eliminate residual errors and adjust steady state time; kd is a differential adjustment coefficient, and can predict the error trend and correct the error in advance.
In one embodiment, a first time length correction coefficient is determined according to a first set temperature and a first cavity center temperature; correcting the initial calculated heating time length based on the first time length correction coefficient to obtain a first heating time length, wherein the first heating time length is equal to the sum of the initial calculated heating time length and a first time length compensation amount, and the first time length compensation amount is equal to the product of the first set temperature and the first time length correction coefficient; and controlling the first heating pipe to run according to the first corrected heating time. Determining a second duration correction coefficient according to the second set temperature and the second cavity center temperature; correcting the initial calculated heating time length based on a second time length correction coefficient to obtain a second heating time length, wherein the second heating time length is equal to the sum of the initial calculated heating time length and a second time length compensation amount, and the second time length compensation amount is equal to the product of a second set temperature and the second time length correction coefficient; and controlling the second heating pipe to run according to the second corrected heating time.
Oven conditions can be divided into two cases, including preheating and holding. The preheating can be divided into three stages, namely: the first stage: the first heating pipe and the second heating pipe are not preheated; and a second stage: the preheating of the second heating pipe is completed, and the preheating of the first heating pipe is not completed; and a third stage: the preheating of the first heating pipe is completed, and the preheating of the second heating pipe is not completed. The temperature correction factor is different and the duration correction factor is also different for different oven conditions. One implementation of determining the temperature correction factor and the duration correction factor for different oven conditions is described below.
In one embodiment, the initially calculated heating duration is modified according to a first duration modification factor to obtain a first heating duration. The corrected first heating duration is closely related to the first unattained set temperature, the higher the first unattained set temperature is, the longer the corrected time is, but the temperature and the time are not in the same dimension, so the temperature is converted into the time by multiplying the first duration correction coefficient; and correcting the initial calculated heating time according to the second time correction coefficient to obtain the second heating time. The corrected second heating duration is closely related to the second setting temperature which is not reached, the higher the second setting temperature which is not reached, the longer the correction time, but the temperature and the time are not in the same dimension, so the second duration correction coefficient is multiplied to complete the conversion from the temperature to the time.
For example, the first set temperature is T1, the second set temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, if T6 is greater than or equal to T2 and T5 is less than T1, indicating that preheating of the lower cavity of the oven is completed, preheating of the upper cavity of the oven is not completed, determining the duration correction coefficient to be b1, initially calculating the heating duration to be T2, and increasing the heating duration of the first heating tube to control the first heating tube and the third heating tube to operate in T3, wherein the first heating duration t3=t2+t1 is calculated as the heating duration of the initial calculation; if T5 is greater than or equal to T1 and T6 is less than T2, indicating that preheating of the upper cavity of the oven is completed, not preheating of the lower cavity of the oven is completed, determining a time length correction coefficient as b2, and initially calculating a heating time length as T2, increasing the working time length of the second heating pipe by t3=t2+t2, and controlling the second heating pipe and the third heating pipe to run in T3.
According to the embodiment, the acquired temperature of the temperature sensor is corrected to the center of the cavity of the oven, the accurate heating time of food is acquired based on the temperature of the center of the cavity, and the heating pipe of the oven is controlled to run in the corrected heating time, so that the cooking effect required by the food is achieved.
Controlling the first heating pipe to run according to the obtained first heating time length; and controlling the second heating pipe to run according to the obtained second heating time length.
According to the embodiment, the temperature of the two temperature sensors is adopted to correct the central temperature of the cavity of the oven, the accurate heating time of food is obtained based on the central temperature of the cavity, and the heating pipe of the oven is controlled to run in the corrected heating time, so that the cooking effect that the food has enough temperature difference between the upper part and the lower part is achieved.
In one embodiment, the temperature correction factor of the oven in different states is determined by comparing the first set temperature with the second set temperature. The specific status classifications are as follows: if the second set temperature is greater than or equal to the first set temperature, the temperature correction coefficient is the first temperature correction coefficient; if the second set temperature is smaller than the first set temperature, the temperature correction coefficient is the second temperature correction coefficient; wherein the second temperature correction coefficient is greater than the first temperature correction coefficient. For example, if the set temperature of the upper cavity is 180 ℃ and the upper cavity temperature is greater than the lower cavity temperature, whether the preheating process is finished or not mainly depends on the fact that the upper cavity is affected by the first heating pipe, the third heating pipe and the back fan together, the temperature change is fast, and the calculated heating time can be shorter; if the set temperature of the lower cavity is 180 ℃ and the lower cavity temperature is greater than the upper cavity temperature, whether the preheating process is finished is mainly determined by the fact that the lower cavity is affected by the second heating pipe, the third heating pipe and the back fan together, the temperature change is slow, and the calculated heating time also needs to be longer.
For example: the first set temperature of the first heating pipe is T1, the second set temperature of the second heating pipe is T2, and if T2 is more than or equal to T1, the temperature correction coefficient is determined to be a first temperature correction coefficient A1; if T2 is less than T1, determining the temperature correction coefficient as a second temperature correction coefficient A2, wherein A2 is more than A1.
If the oven meets the first state and the duration of the first state is less than or equal to the duration threshold, the temperature correction coefficient is a third temperature correction coefficient; when the oven meets the first state, the center temperature of the second cavity is greater than or equal to the second set temperature, the center temperature of the first cavity is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature. For example: the oven is in a first state, wherein the first state refers to the oven being in a heat preservation state and the setting temperature of the second heating pipe is required to be more than or equal to the setting temperature of the first heating pipe; the first setting temperature is T1, the second setting temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, if T6 is more than or equal to T2, T5 is more than or equal to T1, T2 is more than or equal to T1 and the duration of the first state is less than or equal to a duration threshold, the temperature correction coefficient is determined to be a third temperature correction coefficient A3, the duration threshold is less than or equal to the duration threshold, the oven enters the early stage of the heat preservation state, the duration threshold is set by itself according to the actual requirements of different ovens, and the embodiment is not limited by the specific duration threshold.
If the oven meets the first state and the duration of the first state is longer than the duration threshold, determining that the temperature correction coefficient is a fourth temperature correction coefficient; wherein the third temperature correction coefficient is smaller than the fourth temperature correction coefficient; the third temperature correction coefficient is that when the oven is switched from the preheating state to the heat preservation state, the back fan stops acting, heat generated by heating the heating pipe cannot be rapidly diffused in the cavity, the whole machine can be filled with the heat only by increasing the heating time in the earlier stage, and the heating time which is increased in the earlier stage is not needed any longer as the internal heat of the oven is diffused sufficiently under the condition that the back fan stops running, so the third temperature correction coefficient is smaller than the fourth temperature correction coefficient. The time period threshold value is larger than the time period threshold value, namely the oven enters a later stage of the heat preservation state. For example: the first set temperature is T1, the second set temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, and if T6 is more than or equal to T2, T5 is more than or equal to T1, T2 is more than or equal to T1 and the heat preservation duration is more than or equal to the duration threshold, the temperature correction coefficient is determined to be a fourth temperature correction coefficient A4, and A4 is more than A3.
If the oven meets the second state, determining the temperature correction coefficient as a fifth temperature correction coefficient; wherein the fifth temperature correction coefficient is smaller than the fourth temperature correction coefficient; when the second state is satisfied, less heat is used to maintain the temperature stability than preheating. If the temperature of the upper cavity of the oven is greater than the temperature of the lower cavity of the oven, the heating time length is determined by the initial calculation of the heating time length without adding correction, so that the fifth temperature correction coefficient is smaller; however, for the case that the temperature of the lower cavity of the oven is greater than the temperature of the upper cavity of the oven, the heating time length is not only the initial calculated heating time length, but also the corrected heating time length is used for heating the third heating pipe, and the corrected heating time length occupies a relatively large area, so that the initial calculated heating time length is smaller than the case that the temperature of the upper cavity is greater than the temperature of the lower cavity, and the fourth temperature correction coefficient is larger. When the oven meets the second state, the center temperature of the second cavity is greater than or equal to the second set temperature, the center temperature of the first cavity is greater than or equal to the first set temperature, and the second set temperature is less than the first set temperature. For example: the oven is in a second state, wherein the second state means that the oven is in a heat preservation state and the setting temperature of the second heating pipe is required to be smaller than the setting temperature of the first heating pipe. The first set temperature is T1, the second set temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, and if T6 is more than or equal to T2, T5 is more than or equal to T1 and T2 is less than T1, the temperature correction coefficient is determined to be a fifth temperature correction coefficient A5, and A4 is more than A5.
When the oven enters a heat preservation state, if the conditions such as door opening and the like cause T5+B < T1 or T6+B < T2, the temperature in the heat preservation state is in an unstable condition, and the oven needs to be heated in the same heating mode as the flow in the preheating process. And B is a temperature stability threshold, a certain temperature range exists when the temperature stability is converted into instability, the numerical value is not limited specifically, the temperature stability threshold is set according to the actual requirements of different ovens, and the specific duration threshold is not limited in the embodiment.
According to the embodiment, the correction coefficients generated by the temperatures in different states and under different conditions are specifically analyzed, so that the conditions of each temperature in the center of the oven cavity are corrected in detail, and the temperature of food in each stage is ensured to meet the food requirement.
In one embodiment, if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature, obtaining a first heating duration based on a sum of the initially calculated heating duration and the first time duration compensation amount; the first time length compensation amount is the product of the first set temperature and the first time length correction coefficient. For example, the first set temperature is T1, the second set temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, if T6 is greater than or equal to T2 and T5 is less than T1, the first time length correction coefficient is b1, the initial calculated heating time length is T2, and the first heating time length is t3=t2+t1×b1.
According to the embodiment, the first heating duration is obtained through the comparison between the first set temperature and the first cavity center temperature and the comparison between the second set temperature and the second cavity center temperature, so that the heating duration of the upper surface and the lower surface of the oven can be adjusted according to food requirements.
In one embodiment, if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to a sum of the second cavity center temperature and the second temperature fluctuation threshold, obtaining a first heating duration based on a sum of the initially calculated heating duration and the first time duration compensation amount; the first time length compensation quantity is the product of the first set temperature and the first time length correction coefficient; the second temperature fluctuation threshold is a temperature fluctuation threshold amount obtained by correcting the detected temperature of the second temperature sensor to the second cavity center temperature, and the range of the temperature fluctuation threshold amount of the second cavity center temperature is not limited to a specific range. For example: the first setting temperature is T1, the second setting temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, the second temperature fluctuation threshold is A1, if T6+A1 is more than or equal to T2 and T5 is less than T1, the first time length correction coefficient is b1, the initial calculation heating time length is T2, and the first heating time length is t3=t2+T1 b1.
The second temperature fluctuation threshold value is set in the present embodiment to prevent the second temperature sensor from fluctuating to cause the heating condition to be switched repeatedly.
In one embodiment, if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature, obtaining a second heating duration based on a sum of the initially calculated heating duration and a second duration compensation amount; the second time length compensation amount is the product of the second set temperature and the second time length correction coefficient. For example, if T5 is greater than or equal to T1 and T6 is less than T2, the second duration correction coefficient is b2, and the initial calculated heating duration is T2, the second heating duration is t3=t2+t2×b2.
According to the embodiment, the second heating duration is obtained through the comparison between the first set temperature and the first cavity center temperature and the comparison between the second set temperature and the second cavity center temperature, so that the heating duration of the upper surface and the lower surface of the oven can be adjusted according to food requirements.
In one embodiment, if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the sum of the first cavity center temperature and the first temperature fluctuation threshold, obtaining a second heating duration based on the sum of the initially calculated heating duration and the second duration compensation amount; the second time length compensation quantity is the product of the second set temperature and a second time length correction coefficient; the first temperature fluctuation threshold value refers to a temperature fluctuation threshold value amount obtained by correcting the detected temperature of the first temperature sensor to the first cavity center temperature, and the range of the temperature fluctuation threshold value amount of the first cavity center temperature is not limited to a specific range. For example: the first setting temperature is T1, the second setting temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, the second temperature fluctuation threshold is A2, if T5+A2 is more than or equal to T1 and T6 is less than T2, the second duration correction coefficient is b2, the initial calculation heating duration is T2, and the second heating duration is t3=t2+T2.b2.
The first temperature fluctuation threshold value is set in the present embodiment to prevent the first temperature sensor from fluctuating to cause the heating condition to be switched repeatedly.
In one embodiment, if the first cavity center temperature is less than the first set temperature and the second cavity center temperature is less than the first set temperature, the oven cavity heating duration remains unmodified for the initial calculated heating duration.
According to the embodiment, the second heating duration is obtained through the comparison between the first set temperature and the first cavity center temperature and the comparison between the second set temperature and the second cavity center temperature, so that the heating duration of the upper surface and the lower surface of the oven can be adjusted according to food requirements.
If the oven meets the first state, the back fan and the third heating pipe are controlled to be closed, the first heating pipe and the second heating pipe are intermittently opened in the heating time period t2, so that the temperature difference between the first heating pipe and the second heating pipe is kept, the temperature of the lower cavity of the oven is always higher than the temperature of the upper cavity of the oven, certain deviation exists, when the machine just enters the heat preservation, the second temperature sensor which rapidly descends can rapidly return to the second set temperature, the transmission efficiency is high, the second heating pipe is outside the cavity, the heat loss of the second heating pipe when the heating pipe is heated is large in the cavity, the speed of the second temperature sensor is slow, the compensation time is increased for the second heating pipe when the temperature of the lower cavity is higher than the temperature of the upper cavity, namely, the compensation time is increased for the third time period, the first heating pipe and the third heating pipe are only work, the transmission efficiency is high, the second heating pipe is outside the cavity, the heat loss of the second heating pipe is large in the cavity, the second temperature sensor is only compensated for the second time period, and the compensation time is long for the second temperature sensor is long for the second temperature compensation time, and the compensation time is long for the second temperature compensation time, and the second temperature compensation time is long for the second temperature compensation time is long, and the second temperature compensation time is long for the second heating pipe is long. For example, if T6 is greater than or equal to T2, T5 is greater than or equal to T1, and T2 is greater than or equal to T1, the third duration correction coefficient is b3, and the initial calculated heating duration is T2, then the third heating duration is t4=t2×b3.
According to the embodiment, the heating time is corrected according to the cavity center temperature under different states through specific analysis, the heating time is changed due to the fact that different states occur, the specific heating time control is performed on the oven, and the fact that the temperature of food in each stage can meet the food requirement is guaranteed.
In one embodiment, the oven heating pipe is required to be opened intermittently in a time range in order to ensure that the working power of the oven does not exceed the maximum working power of the oven; the intermittent opening means that the first heating pipe, the second heating pipe or the third heating pipe which are opened by the oven are opened sequentially and not simultaneously, and the intermittent opening time of the heating pipes is obtained according to the proportion of the power of the selected heating pipes, and the intermittent opening time is not particularly limited. For example: during the heating period t2, the first heating tube is turned on during the heating period of 0.6t2, and the second heating tube is turned on during the heating period of 0.4t2.
According to the embodiment, the first heating pipe, the second heating pipe and the third heating pipe are required to be opened intermittently within the duration range, so that the working power of the oven cannot exceed the maximum working power of the oven, and the working bearing range of the oven cannot be exceeded.
In one embodiment, if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature, the first heating tube is controlled to operate in a first period of a first heating duration, the third heating tube is controlled to operate in a second period of the first heating duration, and a sum of the first period and the second period is the first heating duration. For example: the first set temperature is T1, the second set temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, if T6 is more than or equal to T2 and T5 is less than T1, the first heating duration is T3, the first heating pipe is controlled to be opened in the duration of x1T3, and the third heating pipe is controlled to be opened in the duration of x2T3, wherein x1+x2=1; x1 and x2 refer to a duration proportional value, and 1 expressed herein refers to the whole heating duration, and is not specifically limited to a fixed time, and can be adjusted according to actual conditions, and is not specifically limited; the ratio of the first time period to the second time period in the heating time period is proportioned according to the power adjustment of the first heating pipe, the second heating pipe and the third heating pipe.
According to the embodiment, the first heating time length is obtained through the comparison between the first set temperature and the first cavity center temperature and the comparison between the second set temperature and the second cavity center temperature, and the intermittent operation is performed, so that the oven is ensured to be capable of meeting the food requirement, adjusting the heating time length of the upper surface and the lower surface, and the temperature difference of the upper surface and the lower surface of the food is ensured.
In one embodiment, if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the sum of the second cavity center temperature and the second temperature fluctuation threshold, controlling the first heating tube to operate in a first period of a first heating duration, controlling the third heating tube to operate in a second period of the first heating duration, and the sum of the first period and the second period being the first heating duration; for example: the first set temperature is T1, the second set temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, the second temperature fluctuation threshold is A1, if T6+A1 is more than or equal to T2 and T5 is less than T1, the first heating duration is T3, the first heating pipe is controlled to be opened in the duration of x1T3, and the third heating pipe is controlled to be opened in the duration of x2T3, wherein x1 +x2=1. The second temperature fluctuation threshold value is set in the present embodiment to prevent the second temperature sensor from fluctuating to cause the heating condition to be switched repeatedly.
In one embodiment, if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature, the second heating tube is controlled to operate in a first period of a second heating duration, the third heating tube is controlled to operate in a second period of the second heating duration, and a sum of the first period and the second period is the second heating duration. For example: if T5 is greater than or equal to T1 and T6 is less than T2, the second heating period is T3, the second heating tube is controlled to be opened in a period of x1T3, and the third heating tube is controlled to be opened in a period of x2T3, wherein x1+x2=1.
According to the embodiment, the second heating time length is obtained through the comparison between the first set temperature and the first cavity center temperature and the comparison between the second set temperature and the second cavity center temperature, and the intermittent operation is performed, so that the oven is ensured to be capable of meeting the food requirement, adjusting the heating time length of the upper surface and the lower surface, and the temperature difference of the upper surface and the lower surface of the food is ensured.
In one embodiment, if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to a sum of the first cavity center temperature and the first temperature fluctuation threshold, the second heating tube is controlled to operate in a first period of a second heating duration, the third heating tube is controlled to operate in a second period of the second heating duration, and a sum of the first period and the second period is the second heating duration. For example: the first set temperature is T1, the second set temperature is T2, the first cavity center temperature is T5, the second cavity center temperature is T6, the first temperature fluctuation threshold is A2, if T5+A2 is more than or equal to T1 and T6 is less than T2, the second heating duration is T3, the second heating pipe is controlled to be opened in the duration of x1T3, and the third heating pipe is controlled to be opened in the duration of x2T3, wherein x1 +x2=1. The first temperature fluctuation threshold value is set in the present embodiment to prevent the first temperature sensor from fluctuating to cause the heating condition to be switched repeatedly.
If the first cavity center temperature is smaller than the first set temperature and the second cavity center temperature is smaller than the first set temperature, the back fan is controlled to be started, the first heating pipe and the third heating pipe are controlled to be opened intermittently in the initial calculated heating time period, and the second heating pipe and the third heating pipe are controlled to be opened intermittently in the initial calculated heating time period. The intermittent opening time is the proportion is adjusted according to the power of the first heating pipe, the second heating pipe and the third heating pipe, so that the rising speed of the temperature of the first heating pipe is consistent with the rising speed of the temperature of the second heating pipe.
If the oven meets the second state, the first heating pipe is controlled to run in a first time period of the initial calculated heating time period, the second heating pipe is controlled to run in a second time period of the initial calculated heating time period, and the sum of the first time period and the second time period is the initial calculated heating time period. For example: if T6 is greater than or equal to T2, T5 is greater than or equal to T1, and T2 is less than T1, initially calculating the heating time period to be T2, controlling the first heating pipe to be opened in the time period of x3T3, and controlling the second heating pipe to be opened in the time period of x4T2, wherein x3+x4=1.
If the oven meets the first state, the first heating pipe is controlled to run in a first time period of the third heating time period, the second heating pipe is controlled to run in a second time period of the third heating time period, and the sum of the first time period and the second time period is the third heating time period. For example, if T6 is greater than or equal to T2, T5 is greater than or equal to T1, and T2 is greater than or equal to T1, the third heating period is T4, the first heating tube is controlled to open for a period of time x5T4, and the second heating tube is controlled to open for a period of time x6T4, wherein x5+x6=1.
According to the embodiment, the fact that the first heating pipe, the second heating pipe and the third heating pipe need to be intermittently operated in different states in the corrected heating duration is analyzed, the condition of temperature overshoot in the oven is reduced, meanwhile, safety is considered, the working power of a machine cannot exceed the maximum working power of the oven, and the working power in the oven cannot be overlarge.
In one embodiment, the oven is further provided with a back fan, and the back fan is controlled to be turned on if the top or bottom of the oven is in a non-preheated state. In order to ensure that the temperature in the cavity of the oven can be kept uniform in the heating process, a back fan needs to be turned on, and the temperature in the cavity of the oven is promoted to be uniform under the assistance of the function of hot air.
And if the top of the oven and the bottom of the oven are in a heat preservation state, controlling to close the back fan. If the oven is in the earlier stage of the heat preservation state, the back fan is turned off, so that the temperature in the cavity is quickly reduced, the temperature field after the preheating is finished is improved, and the temperature correction coefficient is reduced. If the oven is in a heat preservation state and the temperature of the heat preservation state is stable, the back fan is turned off, and the third heating pipe is turned off, so that the upper and lower temperature differences can be kept when the first heating pipe and the second heating pipe are intermittently turned on in heating time.
According to the embodiment, the back fan is installed, so that the cavity temperature of the whole oven is more uniform by using the back fan under the assistance of the hot air function when food is baked, the food is more uniform in color, and the back fan and the third heating pipe are closed after the food enters a heat preservation state, so that the purpose is to keep the temperature difference between the first heating pipe and the second heating pipe up and down.
The embodiment corrects the acquired temperature of the temperature sensor to the cavity center of the oven, so that the cavity center temperature of the oven can meet the set temperature requirement of food, and the temperature reaches the expected cooking effect.
In this embodiment, temperature sensors and heating pipes are respectively arranged at the top and bottom of the oven, a heating control method is designed, a certain temperature difference can be kept on the upper and lower surfaces of food according to dishes with special cooking requirements, different working states, correction coefficients and correction heating time length of the oven are determined by comparing the set temperature with the correction temperature, and therefore the proportion of the heating pipes is completed, and the upper and lower temperature differences on the surfaces of the food can achieve a specific cooking effect. In the preheating process, the characteristic of quick temperature rise is maintained by correcting the heating time length, and the repeated switching of the heating condition caused by the fluctuation of the temperature of the heating pipe is avoided by controlling in different stages. In the heat preservation process, based on the lower reality condition of thermal efficiency of second heating pipe, through changing different correction factor and increasing the heating time of second heating pipe, guarantee to switch to the second cavity center temperature when keeping warm the process and can rise to the setting temperature rapidly, and when the second setting temperature is higher than first setting temperature, can satisfy the difference in temperature requirement.
According to the embodiment, the temperature of the two temperature sensors is adopted to correct the central temperature of the cavity of the oven, the accurate heating time of food is obtained based on the central temperature of the cavity, and the heating pipe of the oven is controlled to run in the corrected heating time, so that the cooking effect that the food has enough temperature difference between the upper part and the lower part is achieved.
The present embodiment provides a flowchart of another heating control method of an oven, as shown in fig. 2, including:
step 201, judging whether the second set temperature is greater than or equal to the first set temperature, if yes, the temperature correction coefficient a=a1; if not, the temperature correction coefficient a=a2.
Step 202, judging whether the working state is a preheating state, if so, calculating the initial heating time by a PID algorithm according to the corrected temperature; if not, go to step 212.
Step 203, judging whether T6 is more than or equal to T2 and T5 is more than or equal to T1, if yes, preheating to heat preservation is carried out in the working state; if not, go to step 204.
204, judging whether T6 is more than or equal to T2 and T5 is less than T1, if yes, preheating the lower cavity, and if not, preheating the upper cavity; if not, step 207 is performed.
Step 205, heating time is corrected to t3=t2+t1×b1.
Step 206, controlling to start the back fan, wherein the first heating pipe and the third heating pipe are opened intermittently in a time period t 3.
Step 207, judging whether T5 is more than or equal to T1 and T6 is less than T2, if yes, preheating the upper cavity, and if not, preheating the lower cavity; if not, go to step 210.
Step 208, heating time is modified to t3=t2+t2×b2.
Step 211, controlling to start the back fan, wherein the first heating pipe, the second heating pipe and the third heating pipe are opened intermittently in a time period of t 2.
And step 216, when the temperature is stable, the PID algorithm calculates the initial heating time according to the corrected temperature.
Step 220, judging whether the actual heating duration is less than or equal to t2, if yes, executing step 221, otherwise executing step 222. Step 221, controlling to turn off the back fan, wherein the first heating pipe and the third heating pipe are opened intermittently for a period of t 2.
Step 222, judging whether t2< actual heating time is less than or equal to t4, if yes, executing step 223, otherwise executing step 224.
Step 223, judging whether T6 is less than or equal to T2, if so, opening a second heating pipe; if not, go to step 224.
The embodiment provides a module schematic diagram of a heating control system of an oven, wherein a cavity of the oven is provided with a temperature sensor and a heating pipe; the temperature sensor comprises a first temperature sensor arranged at the top of the oven and a second temperature sensor arranged at the bottom of the oven, and the heating pipes comprise a first heating pipe arranged at the top of the oven and a second heating pipe arranged at the bottom of the oven; as shown in fig. 3, the heating control system includes:
A first acquiring module 301, configured to acquire a first set temperature of an upper cavity of the oven and a second set temperature of a lower cavity of the oven;
a second acquiring module 302, configured to acquire actual temperatures detected by the first temperature sensor and the second temperature sensor;
a temperature correction module 303 for determining a temperature correction coefficient based on the first set temperature and the second set temperature;
the first temperature determining module 304 is configured to correct the first actual temperature detected by the first temperature sensor based on the temperature correction coefficient, so as to obtain a first cavity center temperature;
a second temperature determining module 305, configured to correct a second actual temperature detected by a second temperature sensor based on a temperature correction coefficient, so as to obtain a second cavity center temperature;
a determining initial heating module 306, configured to determine an initial calculated heating duration based on the first set temperature and the first cavity center temperature;
a first correction duration module 307, configured to determine a first time length correction coefficient according to the first set temperature and the first cavity center temperature;
a second correction duration module 308, configured to determine a second duration correction coefficient according to the second set temperature and the second cavity center temperature;
A first correction heating module 309, configured to correct the initially calculated heating duration based on the first time length correction coefficient, to obtain a first heating duration;
a second correction heating module 310, configured to correct the initially calculated heating duration based on a second duration correction coefficient, to obtain a second heating duration;
the first operation module 311 is configured to control the first heating pipe to operate according to the first heating duration;
a second operation module 312, configured to control operation of the second heating pipe according to the second heating duration.
Optionally, the temperature correction module 303 includes:
the first temperature correction unit is used for setting the temperature correction coefficient to be a first temperature correction coefficient if the second set temperature is more than or equal to the first set temperature;
the second temperature correction unit is used for setting the temperature correction coefficient to be a second temperature correction coefficient if the second set temperature is smaller than the first set temperature; wherein the second temperature correction coefficient is greater than the first temperature correction coefficient.
Optionally, the temperature correction module 303 further includes:
the third temperature correction unit is used for determining the temperature correction coefficient as a third temperature correction coefficient if the oven meets the first state and the duration of the first state is less than or equal to the duration threshold; when the oven meets the first state, the center temperature of the second cavity is more than or equal to the second set temperature, the center temperature of the first cavity is more than or equal to the first set temperature, and the second set temperature is more than or equal to the first set temperature;
The fourth temperature correction unit is used for determining that the temperature correction coefficient is a fourth temperature correction coefficient if the oven meets the first state and the duration of the first state is longer than the duration threshold; wherein the third temperature correction coefficient is smaller than the fourth temperature correction coefficient;
a fifth temperature correction unit, configured to, if the oven satisfies the second state, set the temperature correction coefficient to be a fifth temperature correction coefficient; when the oven meets the second state, the center temperature of the second cavity is greater than or equal to the second set temperature, the center temperature of the first cavity is greater than or equal to the first set temperature, and the second set temperature is less than the first set temperature.
Optionally, the heating control system further comprises:
the first time length correction unit is used for obtaining a first heating time length based on the sum of the initial calculated heating time length and a first time length compensation amount if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature; the first time length compensation quantity is the product of the first set temperature and the first time length correction coefficient;
the second duration correction unit is used for obtaining a second heating duration based on the sum of the initial calculated heating duration and the second duration compensation amount if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature; the second time length compensation quantity is the product of the second set temperature and a second time length correction coefficient;
A third duration correction unit, configured to obtain a third heating duration based on a sum of the initially calculated heating duration and a third duration compensation amount if the oven satisfies the first state; the third duration compensation amount is the product of the second set temperature and the third duration correction coefficient.
Optionally, the heating control system further comprises:
a fourth time length correction unit, configured to obtain a first heating time length based on a sum of an initially calculated heating time length and a first time length compensation amount if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to a sum of the second cavity center temperature and a second temperature fluctuation threshold; the first time length compensation quantity is the product of the first set temperature and the first time length correction coefficient;
a fifth time length correction unit, configured to obtain a second heating time length based on a sum of the initially calculated heating time length and a second time length compensation amount if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to a sum of the first cavity center temperature and the first temperature fluctuation threshold; the second time length compensation amount is the product of the second set temperature and the second time length correction coefficient.
Optionally, the heating control system further comprises:
The first control module is used for controlling to start the back fan if the top of the oven is in a state of not being preheated;
the second control module is used for controlling to start the back fan if the bottom of the oven is in a state of not completing preheating;
and the third control module is used for controlling the back fan to be turned off if the top of the oven and the bottom of the oven are in a heat preservation state.
Optionally, the heating pipe further comprises a third heating pipe arranged at the back of the oven; the first operation module 311 and the second operation module 312 include:
the first time length heating unit is used for controlling the first heating pipe to run in a first time length of a first heating time length and controlling the third heating pipe to run in a second time length of the first heating time length if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature, and the sum of the first time length and the second time length is the first heating time length;
the second duration heating unit is used for controlling the second heating pipe to run in a first duration of the second heating duration and controlling the third heating pipe to run in a second duration of the second heating duration if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature, wherein the sum of the first duration and the second duration is the second heating duration;
The third duration heating unit is used for controlling the first heating pipe to run in a first duration of the initial calculated heating duration if the oven meets the second state, controlling the second heating pipe to run in a second duration of the initial calculated heating duration, wherein the sum of the first duration and the second duration is the initial calculated heating duration, and when the oven meets the second state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature and the second set temperature is less than the first set temperature;
and the fourth time heating unit is used for controlling the first heating pipe to run in a first time period of the third heating time period and controlling the second heating pipe to run in a second time period of the third heating time period if the oven meets the first state, wherein the sum of the first time period and the second time period is the third heating time period, and when the oven meets the first state, the center temperature of the second cavity is greater than or equal to the second set temperature, the center temperature of the first cavity is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature.
Optionally, the heating pipe further comprises a third heating pipe arranged at the back of the oven; the first operation module 311, the second operation module 312 further includes:
The fifth time length heating unit is used for controlling the first heating pipe to run in a first time length of the first heating time length and controlling the third heating pipe to run in a second time length of the first heating time length if the first set temperature is larger than the first cavity center temperature and the second set temperature is smaller than or equal to the sum of the second cavity center temperature and the second temperature fluctuation threshold value, and the sum of the first time length and the second time length is the first heating time length;
and the sixth time length heating unit is used for controlling the second heating pipe to run in a first time length of the second heating time length and controlling the third heating pipe to run in a second time length of the second heating time length if the second set temperature is larger than the second cavity center temperature and the first set temperature is smaller than or equal to the sum of the first cavity center temperature and the first temperature fluctuation threshold value, and the sum of the first time length and the second time length is the second heating time length.
For system embodiments, reference is made to the description of method embodiments for the relevant points, since they essentially correspond to the method embodiments. The system embodiments described above are merely illustrative, in which elements illustrated as separate elements may or may not be physically separate, and elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purposes of the present invention. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Fig. 4 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present invention. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, which when executed implements the heating control method of the exemplary oven. The electronic device 40 shown in fig. 4 is merely an example and should not be construed as limiting the functionality and scope of use of embodiments of the present invention.
As shown in fig. 4, the electronic device 40 may be embodied in the form of a general purpose computing device, which may be a server device, for example. Components of electronic device 40 may include, but are not limited to: the at least one processor 41, the at least one memory 42, a bus 43 connecting the different system components, including the memory 42 and the processor 41.
The bus 43 includes a data bus, an address bus, and a control bus.
The processor 41 executes various functional applications and data processing, such as the heating control method of the exemplary oven of the present invention, by running a computer program stored in the memory 42.
The electronic device 40 may also communicate with one or more external devices 44. Such communication may be through an input/output (I/O) interface 45. Also, model-generating device 40 may also communicate with one or more networks, such as a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet, via network adapter 46. As shown, the network adapter 46 communicates with the other modules of the model-generated electronic device 40 via the bus 43. It should be appreciated that although not shown, other hardware and/or software modules may be used in connection with model-generating electronic device 40, including, but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, data backup storage systems, and the like.
It should be noted that although several units/modules or sub-units/modules of an electronic device are mentioned in the above detailed description, such a division is merely exemplary and not mandatory. Indeed, the features and functionality of two or more units/modules described above may be embodied in one unit/module in accordance with embodiments of the present invention. Conversely, the features and functions of one unit/module described above may be further divided into ones that are embodied by a plurality of units/modules.
The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the heating control method of the exemplary oven of an embodiment of the invention.
More specifically, among others, readable storage media may be employed including, but not limited to: portable disk, hard disk, random access memory, read only memory, erasable programmable read only memory, optical storage device, magnetic storage device, or any suitable combination of the foregoing.
In a possible embodiment, the invention may also be realized in the form of a program product comprising program code for causing a terminal device to carry out a heating control method of an exemplary oven embodying an embodiment of the invention, when said program product is run on the terminal device.
Wherein the program code for carrying out the invention may be written in any combination of one or more programming languages, which program code may execute entirely on the user device, partly on the user device, as a stand-alone software package, partly on the user device and partly on the remote device or entirely on the remote device.
It should be understood that the first and second embodiments of the present invention are merely for distinguishing, and are not intended to have any substantial meaning.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the principles and spirit of the invention, but such changes and modifications fall within the scope of the invention.
Claims (11)
1. The heating control method of the oven is characterized in that a cavity of the oven is provided with a temperature sensor and a heating pipe; the temperature sensor comprises a first temperature sensor arranged at the top of the oven and a second temperature sensor arranged at the bottom of the oven, and the heating pipes comprise a first heating pipe arranged at the top of the oven and a second heating pipe arranged at the bottom of the oven; the heating control method comprises the following steps:
acquiring a first set temperature of an upper cavity of the oven and a second set temperature of a lower cavity of the oven;
acquiring actual temperatures detected by the first temperature sensor and the second temperature sensor;
Determining a temperature correction coefficient based on the first set temperature and the second set temperature;
correcting the first actual temperature detected by the first temperature sensor based on the temperature correction coefficient to obtain a first cavity center temperature;
correcting the second actual temperature detected by the second temperature sensor based on the temperature correction coefficient to obtain a second cavity center temperature;
determining an initial calculated heating duration based on the first set temperature and the first cavity center temperature;
determining a first time length correction coefficient according to the first set temperature and the first cavity center temperature;
determining a second duration correction coefficient according to the second set temperature and the second cavity center temperature;
correcting the initial calculated heating time length based on the first time length correction coefficient to obtain a first heating time length;
correcting the initial calculated heating time length based on the second time length correction coefficient to obtain a second heating time length;
controlling the first heating pipe to run according to the first heating time length;
and controlling the second heating pipe to run according to the second heating time.
2. The heating control method of an oven according to claim 1, wherein said determining a temperature correction coefficient based on said first set temperature and said second set temperature includes:
If the second set temperature is greater than or equal to the first set temperature, the temperature correction coefficient is a first temperature correction coefficient;
if the second set temperature is smaller than the first set temperature, the temperature correction coefficient is a second temperature correction coefficient; wherein the second temperature correction coefficient is greater than the first temperature correction coefficient.
3. The heating control method of an oven according to claim 1, wherein said determining a temperature correction coefficient based on said first set temperature and said second set temperature further comprises:
if the oven meets the first state and the duration of the first state is less than or equal to a duration threshold, the temperature correction coefficient is a third temperature correction coefficient; when the oven meets a first state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature;
if the oven meets the first state and the duration of the first state is longer than a duration threshold, the temperature correction coefficient is a fourth temperature correction coefficient; wherein the third temperature correction coefficient is less than the fourth temperature correction coefficient;
If the oven meets the second state, the temperature correction coefficient is a fifth temperature correction coefficient; when the oven meets a second state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is less than the first set temperature; the fifth temperature correction coefficient is smaller than the fourth temperature correction coefficient.
4. The heating control method of an oven according to claim 1, characterized in that the heating control method further comprises:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature, obtaining a first heating duration based on the sum of the initial calculated heating duration and a first time duration compensation amount; the first time length compensation quantity is the product of the first set temperature and a first time length correction coefficient;
if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature, obtaining a second heating duration based on the sum of the initial calculated heating duration and a second duration compensation amount; the second time length compensation amount is the product of the second set temperature and a second time length correction coefficient;
If the oven meets the first state, obtaining a third heating duration based on the sum of the initial calculated heating duration and a third duration compensation amount; the third time length compensation amount is the product of the second set temperature and a third time length correction coefficient, and when the oven meets a first state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature.
5. The heating control method of an oven according to claim 1, characterized in that the heating control method further comprises:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the sum of the second cavity center temperature and a second temperature fluctuation threshold, obtaining a first heating duration based on the sum of the initial calculated heating duration and a first time duration compensation amount; the first time length compensation quantity is the product of the first set temperature and a first time length correction coefficient;
if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the sum of the first cavity center temperature and a first temperature fluctuation threshold, obtaining a second heating duration based on the sum of the initial calculated heating duration and a second duration compensation amount; the second time length compensation amount is the product of the second set temperature and a second time length correction coefficient.
6. The heating control method of an oven according to claim 1, wherein the oven is further provided with a back fan; the heating control method further includes:
if the top of the oven is in a state of not completing preheating, controlling to start the back fan;
if the bottom of the oven is in a state of not completing preheating, controlling to start the back fan;
and if the top of the oven and the bottom of the oven are in a heat preservation state, controlling to close the back fan.
7. The heating control method of the oven according to claim 1, wherein the heating pipe further comprises a third heating pipe provided at a back of the oven; controlling the first heating pipe to run according to the first heating time length; controlling the second heating pipe to run according to the second heating time length comprises:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the second cavity center temperature, controlling the first heating pipe to run in a first time period of the first heating time period, controlling the third heating pipe to run in a second time period of the first heating time period, and enabling the sum of the first time period and the second time period to be the first heating time period;
If the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the first cavity center temperature, controlling the second heating pipe to operate in a first time period of the second heating time period, controlling the third heating pipe to operate in a second time period of the second heating time period, and enabling the sum of the first time period and the second time period to be the second heating time period;
if the oven meets the second state, controlling a first heating pipe to run in a first time period of initial calculated heating time period, and controlling a second heating pipe to run in a second time period of initial calculated heating time period, wherein the sum of the first time period and the second time period is the initial calculated heating time period, and when the oven meets the second state, the second cavity center temperature is more than or equal to the second set temperature, the first cavity center temperature is more than or equal to the first set temperature, and the second set temperature is less than the first set temperature;
if the oven meets the first state, controlling the first heating pipe to run in a first time period of a third heating time period, controlling the second heating pipe to run in a second time period of the third heating time period, wherein the sum of the first time period and the second time period is the third heating time period, and when the oven meets the first state, the second cavity center temperature is greater than or equal to the second set temperature, the first cavity center temperature is greater than or equal to the first set temperature, and the second set temperature is greater than or equal to the first set temperature.
8. The heating control method of the oven according to claim 1, wherein the heating pipe further comprises a third heating pipe provided at a back of the oven; controlling the first heating pipe to run according to the first heating time length; controlling the operation of the second heating pipe according to the second heating duration further includes:
if the first set temperature is greater than the first cavity center temperature and the second set temperature is less than or equal to the sum of the second cavity center temperature and a second temperature fluctuation threshold, controlling the first heating pipe to run in a first time period of the first heating duration, controlling the third heating pipe to run in a second time period of the first heating duration, and enabling the sum of the first time period and the second time period to be the first heating duration;
if the second set temperature is greater than the second cavity center temperature and the first set temperature is less than or equal to the sum of the first cavity center temperature and a first temperature fluctuation threshold, controlling the second heating pipe to run in a first time period of the second heating duration, controlling the third heating pipe to run in a second time period of the second heating duration, and enabling the sum of the first time period and the second time period to be the second heating duration.
9. A heating control system of an oven, which is characterized in that a cavity of the oven is provided with a temperature sensor and a heating pipe; the temperature sensor comprises a first temperature sensor arranged at the top of the oven and a second temperature sensor arranged at the bottom of the oven, and the heating pipes comprise a first heating pipe arranged at the top of the oven and a second heating pipe arranged at the bottom of the oven; the heating control system includes:
a first acquisition module for acquiring a first set temperature of an upper cavity of the oven and a second set temperature of a lower cavity of the oven;
the second acquisition module is used for acquiring the actual temperatures detected by the first temperature sensor and the second temperature sensor;
a temperature correction module for determining a temperature correction coefficient based on the first set temperature and the second set temperature;
the first temperature determining module is used for correcting the first actual temperature detected by the first temperature sensor based on the temperature correction coefficient to obtain the central temperature of the first cavity;
the second temperature determining module is used for correcting the second actual temperature detected by the second temperature sensor based on the temperature correction coefficient to obtain the center temperature of the second cavity;
The initial heating module is used for determining initial calculated heating duration based on the first set temperature and the first cavity center temperature;
the first correction duration module is used for determining a first time length correction coefficient according to the first set temperature and the first cavity center temperature;
the second time length correction module is used for determining a second time length correction coefficient according to the second set temperature and the second cavity center temperature;
the first correction heating module is used for correcting the initial calculated heating time length based on the first time length correction coefficient to obtain a first heating time length;
the second correction heating module is used for correcting the initial calculated heating time length based on the second time length correction coefficient to obtain a second heating time length;
the first operation module is used for controlling the first heating pipe to operate according to the first heating time length;
and the second operation module is used for controlling the operation of the second heating pipe according to the second heating time length.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory for running on the processor, characterized in that the processor implements the method of controlling heating of an oven according to any one of claims 1 to 8 when executing the computer program.
11. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when executed by a processor, implements the heating control method of an oven as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310094783.3A CN116126050A (en) | 2023-01-18 | 2023-01-18 | Oven heating control method and system, electronic equipment and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310094783.3A CN116126050A (en) | 2023-01-18 | 2023-01-18 | Oven heating control method and system, electronic equipment and storage medium |
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| Publication Number | Publication Date |
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| CN116126050A true CN116126050A (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310094783.3A Pending CN116126050A (en) | 2023-01-18 | 2023-01-18 | Oven heating control method and system, electronic equipment and storage medium |
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| Country | Link |
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| CN (1) | CN116126050A (en) |
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2023
- 2023-01-18 CN CN202310094783.3A patent/CN116126050A/en active Pending
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