WO2022156642A1 - Control method for rewarming of constant temperature incubator, and constant temperature incubator - Google Patents

Abstract

The present application relates to the technical field of culture apparatus, and discloses a control method for rewarming of a constant temperature incubator, comprising: when it is determined that a door of a constant temperature incubator is switched from open to closed, obtaining a current inner chamber temperature of the constant temperature incubator; when the current inner chamber temperature is between a preset temperature and a target temperature, controlling a heating wire to be heated in a preset heating mode, and controlling a fan to operate in a preset operating mode; and when an inner chamber temperature obtained by heating in the preset heating mode reaches the target temperature, adjusting heating power of the heating wire to initial power. According to a change in the inner chamber temperature, the heating wire and the fan are targetedly controlled, and by means of a synergistic effect of the heating wire and the fan, precise rewarming control of the incubator is implemented, temperature overshooting does not occur, and a fluctuation degree requirement that the inner chamber temperature is near the target temperature is met; the inner chamber temperature of the incubator can return to the target temperature within a reasonable time, and a culture effect of cells in the incubator is improved. The present application also discloses a constant temperature incubator.

Description

Control method for temperature return of constant temperature incubator and constant temperature incubator

This application is based on the Chinese patent application with the application number of 202110082847.9 and the filing date of January 21, 2021, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is incorporated herein by reference.

technical field

The present application relates to the technical field of culturing devices, for example, to a control method and a constant temperature incubator for temperature return of a constant temperature incubator.

Background technique

At present, a constant temperature incubator, such as a carbon dioxide constant temperature incubator, is a box body that controls temperature and carbon dioxide concentration. A door body is provided on the front side of the box body. The inner chamber is formed after the body, and the inner wall of the inner chamber is provided with a heating wire for heating the inner chamber. Heating wire.

The constant temperature incubator controls the temperature of the inner room very strictly, and the temperature fluctuation must conform to the set temperature ± 0.1 ℃. % or more, the environment in the human body is simulated for cell culture, and the temperature control is extremely strict. Since the experimenter needs to open and close the door frequently to store the cell culture dish, the temperature in the box will decrease when the door is opened. The temperature needs to be restored to the set temperature, that is, the temperature recovery process.

In the prior art, the temperature of the inner chamber is adjusted by controlling the heating wire. If the temperature rises too fast, due to the temperature hysteresis of the heating wire, the temperature will overshoot seriously, and the fluctuation degree will not meet the requirements. burn. The next best thing is to set a relatively long recovery time on the premise of ensuring that the temperature does not overshoot, which will only cause the cells to grow slowly and not die. Therefore, how to accurately control the temperature recovery process of the constant temperature incubator, so as not to cause temperature overshoot, but also to ensure that cells grow in a better environment, so as to improve the culture effect of cells in the incubator, has become an urgent problem to be solved at present. technical issues.

SUMMARY OF THE INVENTION

In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended to be an extensive review, nor to identify key/critical elements or to delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

The embodiments of the present disclosure provide a control method and a control device for temperature recovery of a constant temperature incubator, and a constant temperature incubator, so as to solve the technical problem that the temperature recovery time of the existing constant temperature incubator is long.

In some embodiments, the control method for rapid temperature recovery of a constant temperature incubator includes: after determining that the door of the constant temperature incubator is switched from open to closed, obtaining the current inner room temperature of the constant temperature incubator; When the temperature is between the preset temperature and the target temperature, the heating wire arranged in the constant temperature incubator is controlled to be heated in the preset heating mode, and the fan is controlled to run in the preset operation mode; the inner room temperature after heating by the preset heating mode After reaching the target temperature, the heating power of the heating wire is adjusted to the initial power; wherein, the initial power is smaller than the preset heating power in the preset heating mode.

In some embodiments, the control device for rapid temperature recovery of a constant temperature incubator includes a processor and a memory storing program instructions, wherein the processor is configured to execute the aforementioned functions when executing the program instructions. A control method for rapid temperature recovery in a constant temperature incubator.

In some embodiments, the constant temperature incubator includes the aforementioned control device for rapid temperature recovery of the constant temperature incubator.

The control method and control device for the temperature return of a constant temperature incubator, and the constant temperature incubator provided by the embodiments of the present disclosure can achieve the following technical effects:

In the control method for rapid temperature recovery of a constant temperature incubator according to the embodiment of the present disclosure, when the inner chamber temperature of the constant temperature incubator is between the preset temperature and the target temperature, according to the change of the inner chamber temperature, the heating wire and the The fan is controlled, and through the synergistic effect of the heating wire and the fan, the precise temperature return control of the incubator is realized, and there will be no temperature overshoot, which can meet the fluctuation requirements of the inner room temperature near the set temperature; it can also make the incubator The temperature of the inner chamber can be restored to the target temperature within a reasonable time to ensure that the cells grow in a better environment; the culture effect of the cells in the incubator is improved.

The foregoing general description and the following description are exemplary and explanatory only and are not intended to limit the application.

Description of drawings

One or more embodiments are exemplified by the accompanying drawings, which are not intended to limit the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, The drawings do not constitute a limitation of scale, and in which:

FIG. 1 is a schematic flowchart of a control method for temperature return of a constant temperature incubator provided by an embodiment of the present disclosure;

2 is a schematic flowchart of another method for controlling the temperature return of a constant temperature incubator provided by an embodiment of the present disclosure;

3 is a schematic flowchart of another method for controlling the temperature return of a constant temperature incubator provided by an embodiment of the present disclosure;

4 is a schematic flowchart of another method for controlling the temperature return of a constant temperature incubator provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a control device for temperature return of a constant temperature incubator provided by an embodiment of the present disclosure.

Detailed ways

In order to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are for reference only and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, numerous details are provided to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawings.

The terms "first", "second" and the like in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged under appropriate circumstances for the purposes of implementing the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having", and any variations thereof, are intended to cover non-exclusive inclusion.

Unless stated otherwise, the term "plurality" means two or more.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an "or" relationship. For example, A/B means: A or B.

The term "and/or" is an associative relationship describing objects, indicating that three relationships can exist. For example, A and/or B, means: A or B, or, A and B three relationships.

In the embodiment of the present disclosure, the constant temperature incubator is a box used for biological cultivation, and the temperature control of the inner chamber is extremely strict, and the temperature fluctuation must meet the set temperature ±0.1°C, generally, the set temperature is 37°C.

With reference to FIG. 1 , an embodiment of the present disclosure provides a method for controlling the temperature return of a constant temperature incubator, including:

S101. After determining that the door of the constant temperature incubator is switched from open to closed, obtain the current inner room temperature of the constant temperature incubator.

The current inner chamber temperature can be obtained by a temperature sensor provided in the inner chamber of the constant temperature incubator.

S102. When the current inner room temperature is equal to or greater than the preset temperature and less than or equal to the target temperature, control the heating wire arranged in the constant temperature incubator to be heated in the preset heating mode, and control the fan to operate in the preset operation mode.

The target temperature is greater than the preset temperature. Here, the target temperature may be the set temperature of the constant temperature incubator, for example, 37°C. The target temperature can also be smaller than the set temperature of the constant temperature incubator by a temperature value ΔT of the allowable fluctuation degree. For example, if ΔT is 0.1 °C, the target temperature is 36.9 °C, which is higher than the set temperature of the constant temperature incubator ( 37°C) is less than 0.1°C. For a constant temperature incubator, the temperature fluctuation should be within the set temperature ±0.1°C, that is, when the set temperature is 37°C, the inner room temperature is allowed to fluctuate within the range of 36.9°C to 37.1°C; set the target temperature to 36.9°C , a temperature overshoot range of 2ΔT (eg, 0.2°C) is reserved for the inner room temperature to effectively avoid overshoot.

The preset temperature is lower than the target temperature, but higher than the current temperature value (eg, 32°C) after the maximum temperature reduction during the opening of the constant temperature incubator. Optionally, the preset temperature is any temperature value between 33.5°C and 36.5°C. Optionally, the preset temperature is 33.5°C, 34°C, 34.5°C, 35°C, 35.5°C, 36°C, 36.5°C or any other temperature value.

In the preset heating mode and the preset operation mode, the heating power of the heating wire and the fan speed of the fan are determined according to the current inner room temperature, so that the heating wire and the fan work together to achieve accurate temperature return control of the incubator.

Optionally, in the first preset heating mode, heating is performed at a set heating rate, that is, heating is performed with a constant preset heating power. For example, the heating power of the heating wire is adjusted to control heating at a heating rate of 1 to 1.5°C/min. By controlling the heating rate, the overshoot phenomenon is avoided due to the rapid heating. Optionally, the ramp rate is 1.25°C/min.

Optionally, in the second preset heating mode, the lower the current inner room temperature, the higher the heating power of the heating wire. When the inner room temperature is relatively large from the target temperature, use a large heating power for heating to speed up the rise of the inner room temperature; as the inner room temperature rises and gets closer to the target temperature, reduce the heating power and reduce the The heating rate can slow down the temperature hysteresis of the inner room temperature and avoid the overshoot phenomenon. For example, the heating power of the heating wire is controlled to decrease at a set rate; or, the heating power of the heating wire is controlled to decrease in steps. That is, in the preset heating mode of this embodiment, there are at least two or more different preset heating powers.

Optionally, in the preset operation mode, the lower the current indoor temperature is, the higher the fan speed of the fan is. Combined with the preset heating mode, when the current inner room temperature is small, control the heating power of the heating wire and the fan speed of the fan to increase the inner room temperature as soon as possible; when the inner room temperature increases, the heating power of the heating wire is controlled to change. Small and the fan speed of the fan becomes smaller, which reduces the rate of increase of the inner room temperature and reduces the temperature hysteresis of the heating wire.

Optionally, in the first preset operation mode, the blower is controlled to reduce the rotational speed of the blower at a set rate. For example, control the fan to reduce the fan speed at a rate of 10-20r/min. Optionally, control the fan to reduce the fan speed at a rate of 15r/min. That is, in the preset operation mode of this embodiment, the preset fan speed decreases as the heating time increases.

Optionally, in the second preset operation mode, the blower is controlled to reduce the rotational speed of the blower in a stepwise manner. With the rise of the inner room temperature, reduce the fan speed of the fan, and coordinate with the adjustment of the heating power of the heating wire to accurately control the temperature recovery process. That is, in the preset operation mode of this embodiment, there are at least two or more different preset fan rotation speeds.

For the situation that the current inner room temperature is lower than the preset temperature, optionally, the control method further includes: S1021 , when the current inner room temperature is lower than the preset temperature, control the heating wire to heat with a set power, and control the fan to set the rotational speed run. Wherein, the set power is greater than the preset heating power in the preset heating mode, and the set speed is greater than the preset fan speed in the preset operation mode. When the current inner room temperature is lower than the preset temperature, use a higher set power heating and a larger set wind speed to run, speed up the temperature recovery rate, and use the preset heating mode when it is equal to or greater than the preset temperature The heating power and fan speed are controlled by the preset operation mode, which can control the temperature recovery process of the constant temperature incubator more precisely, that is, the temperature is quickly recovered without overshooting. For example, set the power to 5P, where P is the initial power. The set speed is 1100r/min.

S103. After the inner chamber temperature heated by the preset heating mode reaches the target temperature, adjust the heating power of the heating wire to the initial power; wherein, the initial power is smaller than the preset heating power in the preset heating mode.

The initial power is the heating power of the heating wire before the door of the constant temperature incubator is opened. That is, after the inner room temperature reaches the target temperature, the heating power of the heating wire is adjusted to return to the heating power before the door is opened, and the temperature return control is completed. The specific value of the initial power is not limited, and is determined according to the set temperature of the constant temperature incubator and the ambient temperature during use. For example, when the set temperature of the constant temperature incubator is 37°C and the ambient temperature is 22°C, the initial power is in the range of 50-100W. For example, the initial power is 80W.

Using the control method for the temperature return of the constant temperature incubator according to the embodiment of the present disclosure, when the temperature of the inner chamber of the constant temperature incubator is less than or equal to the target temperature (between the preset temperature and the target temperature or lower than the preset temperature), according to The change of the temperature of the inner room can control the heating wire and the fan in a targeted manner. Through the synergy of the heating wire and the fan, the precise temperature return control of the incubator is realized, and there will be no temperature overshoot. It can also make the temperature of the inner chamber of the incubator return to the target temperature within a reasonable time to ensure that the cells grow in a better environment, and improve the culture effect of the cells in the incubator.

With reference to Figure 2, the heating wire is controlled to be heated in a preset heating mode, including:

S201. In a plurality of consecutive first preset temperature intervals, determine a first target temperature interval in which the current interior room temperature is located.

Wherein, the lower limit value of each first preset temperature interval is greater than or equal to the preset temperature, and the upper limit value is less than or equal to the target temperature. That is, the preset temperature to the target temperature is divided into a plurality of continuous temperature intervals. The number of divided temperature intervals is not limited, for example, 2, 3, 4, 5 or more, etc., are determined according to the temperature difference between the preset temperature and the target temperature. Optionally, the greater the temperature difference between the two, the greater the number of divided temperature intervals. Moreover, the division method is not limited, and it can be divided into equal spans or variable spans.

Optionally, the temperature spans of the multiple consecutive first preset temperature intervals are the same. The temperature span can be controlled at 0.1°C to 1°C, and is determined according to the temperature difference between the preset temperature and the target temperature and the number of divided temperature intervals.

For example, in the first division method, the preset temperature is 34.5°C, the target temperature is 36.9°C, and 0.6°C is used as the temperature span to divide 34.5°C to 36.9°C into four continuous temperature intervals, and the first temperature interval I is [34.5 ℃, 35.1℃), the first temperature interval II is [35.1℃, 35.7℃), the first temperature interval III is [35.7℃, 36.3℃), and the first temperature interval IV is [36.3℃, 36.9℃). Here, when the current inner room temperature is 35°C, the first target temperature range in which it is located is the first temperature range I; when the current inner room temperature is 36°C, the first target temperature range in which it is located is the first temperature range III.

For example, in the second division method, the preset temperature is 36°C, the target temperature is 36.9°C, and 0.3°C is used as the temperature span to divide 36°C to 36.9°C into three continuous temperature intervals, and the first temperature interval I is [36 °C, 36.3 °C), the first temperature interval II is [36.3 °C, 36.6 °C), and the first temperature interval III is [36.6 °C, 36.9 °C). Here, when the current inner room temperature is 36°C, the first target temperature range in which it is located is the first temperature range I; when the current inner room temperature is 36.5°C, the first target temperature range in which it is located is the first temperature range II.

Optionally, the spans of the multiple consecutive first preset temperature intervals are different. When the temperature value goes from low to high, the span of the first preset temperature interval increases; or, when the temperature value goes from low to high, the span of the first preset temperature interval decreases first and then increases.

For example, in the third division method, the preset temperature is 34°C, the target temperature is 36.9°C, and the temperature value is from low to high, and the span of the first preset temperature interval is increased, and 34°C to 36.9°C is divided into four Continuous temperature interval, the first temperature interval I is [34°C, 34.5°C), the first temperature interval II is [34.5°C, 35.2°C), the first temperature interval III is [35.2°C, 36°C), the first temperature interval Interval IV is [36°C, 36.9°C). Here, when the current inner room temperature is 35°C, the first target temperature range in which it is located is the first temperature range II; when the current inner room temperature is 36°C, the first target temperature range in which it is located is the first temperature range IV.

For example, in the fourth division method, the preset temperature is 33.8°C, the target temperature is 36.9°C, the temperature value is from low to high, and the span of the first preset temperature interval first decreases and then increases. Divided into four continuous temperature intervals, the first temperature interval I is [33.8°C, 34.8°C), the first temperature interval II is [34.8°C, 35.6°C), and the first temperature interval III is [35.6°C, 36.1°C) , the first temperature interval IV is [36.1°C, 36.9°C). Here, when the current inner room temperature is 35°C, the first target temperature range in which it is located is the first temperature range II; when the current inner room temperature is 36°C, the first target temperature range in which it is located is the first temperature range III.

S202. Obtain a preset heating power corresponding to the first target temperature interval.

Each preset temperature interval corresponds to a preset heating power, which realizes the stepwise adjustment of the heating power of the heating wire and controls the temperature recovery process more accurately.

Specifically, obtaining the preset heating power corresponding to the first target temperature interval includes: S2021, obtaining a first target characteristic temperature value of the first target temperature interval; wherein the first target characteristic temperature value reflects the first target temperature interval temperature size. S2022. According to the negative correlation between the heating power and the first characteristic temperature value, determine the heating power corresponding to the first target characteristic temperature value as the preset heating power.

The first characteristic temperature value reflects the temperature size of the first temperature interval, and the first characteristic temperature value may be the lower limit value, upper limit value or average value of the first temperature interval, etc., which can reflect the temperature size of the first temperature interval, that is, Can. For example, in the aforementioned first division method, the first characteristic temperature value I of the first temperature interval I ([34.5°C, 35.1°C)) is 34.5°C (lower limit value) or 34.8°C (average value). The first characteristic temperature value II of a temperature interval II ([35.1°C, 35.7°C)) is 35.1°C or 35.4°C, and the first characteristic temperature value III of the first temperature interval III ([35.7°C, 36.3°C)) is 35.7 °C or 36 °C, the first characteristic temperature value IV of the first temperature interval IV ([36.3 °C, 36.9 °C)) is 36.3 °C or 36.6 °C.

The negative correlation between the heating power and the first characteristic temperature value is preset, and the larger the value of the first characteristic temperature value, the smaller the heating power. The heating power of the heating wire is changed in a stepwise manner.

Optionally, the heating power is in the range of [4P, 1.5P], where P is the initial power. The larger the value of the first characteristic temperature value, the smaller the value of the heating power within the range of [4P, 1.5P]. For example, in the aforementioned first division method, the first characteristic temperature value I is 34.5°C, and the heating power I is 4P; the first characteristic temperature value II is 35.1°C, and the heating power II is 3P; the first characteristic temperature value III is 35.7℃, the heating power III is 2.5P; the first characteristic temperature value IV is 36.3℃, and the heating power IV is 1.5P.

S203 , controlling the heating of the heating wire according to the preset heating power.

S204: Acquire the temperature of the new inner chamber heated according to the preset heating power in step S203, and perform heating control according to the new inner chamber temperature and the target temperature.

Specifically, in S2041, obtain the new inner room temperature heated according to the preset heating power in step S203, and when the new inner room temperature is less than or equal to the target temperature, determine the first target temperature range' in which the new inner room temperature is located. S2042. Obtain a preset heating power corresponding to the first target temperature interval '. S2043, control the heating of the heating wire according to the preset heating power'. This cycle is repeated until the obtained latest inner room temperature reaches the target temperature, then the cycle process is exited, and the control process of step S103 is entered.

Here, the foregoing first division manner is taken as an example for specific description. Specifically, it includes the following steps: S2051, obtaining the current inner room temperature, for example, when it is 35°C, determine the first target temperature interval in which it is located, such as the first temperature interval I; S2052, determining the first target temperature interval (the first temperature interval I) The preset heating power corresponding to the temperature interval I), if the heating power I is 4P, the heating wire is controlled to heat with the preset heating power (4P). S2053: Obtain the new inner room temperature heated with the preset heating power (4P), and determine the relationship between the new inner room temperature and the target temperature; when the new inner room temperature is less than the target temperature, perform steps S2054 to S2055, otherwise, Then execute S2056.

S2054. Determine the first target temperature range' where the new interior room temperature is located; for example, the new interior room temperature is 35.1°C, and the first target temperature range' where the new interior room temperature is located is the first temperature range II.

S2055, determine the preset heating power corresponding to the first target temperature interval '; for example, the heating power II corresponding to the first temperature interval II is 3P; then control the heating wire to heat with the preset heating power '(3P). Then execute S2053, obtain the new inner chamber temperature heated with the preset heating power ', and determine the relationship between the new inner chamber temperature and the target temperature, and execute S2056 until the new inner chamber temperature reaches the target temperature.

S2056. Adjust the heating power of the heating wire to the initial power; wherein, the initial power is less than the preset heating power in the preset heating mode. The preset heating power here is the corresponding preset heating power when the condition of "the temperature of the new inner room reaches the target temperature" is satisfied in step S2053.

In the embodiment of the present disclosure, the heating power of the heating wire is heated in a stepwise manner, and the temperature recovery process is more precisely controlled.

In some embodiments, after determining that the heating power corresponding to the first target characteristic temperature value is the preset heating power, the method further includes:

S2023: Obtain the first previous duration of the previous inner room temperature within the first previous temperature interval, wherein the first previous temperature interval is adjacent to the first target temperature interval, and the upper limit of the first previous temperature interval The value is less than the lower limit value of the first target temperature interval. The first previous duration can be obtained by the difference between the start time of the inner room temperature entering the first previous temperature interval and the start time of entering the first target temperature interval, or can be obtained by a timer, which is not limited.

S2024. Determine a target first coefficient corresponding to the first previous duration according to the positive correlation between the first coefficient and the first duration. The value range of the first coefficient is [0.8, 1.2]; wherein, a standard duration is set for the first duration. When the first duration is a standard duration, the first coefficient is 1, that is, the heating power is not corrected. . When the first duration is less than the standard duration, it indicates that the heating power is too large and the temperature rises too fast, and the value range of the first coefficient is [0.8, 1), so that the corrected heating power is smaller than the preset heating power. Conversely, when the first duration is longer than the standard duration, it means that the heating power is too small and the temperature rise is too slow, then the value range of the first coefficient is (1, 1.2], so that the corrected heating power is higher than the preset heating power. . That is, the longer the first duration is, the larger the first coefficient is; the smaller the first duration is, the smaller the first coefficient is.

S2025: Determine the corrected heating power according to the product of the target first coefficient and the preset heating power; and control the heating of the heating wire according to the corrected heating power.

This embodiment is suitable for including two or more than two first preset temperature intervals, and is executed when the current inner room temperature enters the second first preset temperature interval and the subsequent first preset temperature intervals.

Combined with Figure 3, control the fan to run in a preset operation mode, including:

S301. In a plurality of consecutive second preset temperature intervals, determine a second target temperature interval in which the current inner room temperature is located.

Wherein, the lower limit value of each second preset temperature interval is greater than or equal to the first preset temperature, and the upper limit value is less than or equal to the target temperature. That is, the preset temperature to the target temperature is divided into a plurality of continuous temperature intervals. The number of divided temperature intervals is not limited, for example, 2, 3, 4, 5 or more, etc., are determined according to the temperature difference between the preset temperature and the target temperature. Optionally, the greater the temperature difference between the two, the greater the number of divided temperature intervals. Moreover, the division method is not limited, and it can be divided into equal spans or variable spans.

For example, in the first division method, the preset temperature is 34.5°C, the target temperature is 36.9°C, and 0.6°C is used as the temperature span to divide 34.5°C to 36.9°C into four continuous temperature intervals, and the second temperature interval I is [34.5 ℃, 35.1℃), the second temperature interval II is [35.1℃, 35.7℃), the second temperature interval III is [35.7℃, 36.3℃), and the second temperature interval IV is [36.3℃, 36.9℃). Here, when the current inner room temperature is 35°C, the second target temperature range in which it is located is the second temperature range I; when the current inner room temperature is 36°C, the second target temperature range in which it is located is the second temperature range III. For the rest of the division manners, refer to the division manner of the first preset temperature interval in the foregoing step S201, and details are not described herein again.

S302. Obtain a preset fan speed corresponding to the second target temperature interval.

Each preset temperature interval corresponds to a preset fan speed; the fan speed of the fan can be adjusted in steps, and the temperature recovery process can be controlled more accurately.

Specifically, obtaining the preset fan speed corresponding to the second target temperature interval includes: S3021 , obtaining a second target characteristic temperature value of the second target temperature interval; wherein the second target characteristic temperature value reflects the second target The size of the temperature range. S3022 , according to the negative correlation between the rotational speed of the blower and the second characteristic temperature value, determine the rotational speed of the blower corresponding to the second target characteristic temperature value as the preset rotational speed of the blower.

The second characteristic temperature value reflects the temperature in the second temperature interval, and the first characteristic temperature value may be the lower limit value, upper limit value or average value of the first temperature interval, etc., which can reflect the temperature in the first temperature interval, namely Can. Refer to the setting of the first characteristic temperature value in the aforementioned step S2021, which is not repeated here.

The negative correlation between the rotational speed of the fan and the second characteristic temperature value is preset, the value of the second characteristic temperature value increases, and the rotational speed of the blower decreases in a stepwise manner. The fan speed of the fan is changed in a stepwise manner.

Optionally, control the fan speed to decrease stepwise by a difference of 100 r/min. For example, for the first division method described in step S301, the fan speed I corresponding to the second temperature zone I is controlled to be 1000 r/min, the fan speed II corresponding to the second temperature zone II is 900 r/min, and the second temperature zone III The corresponding fan speed III is 800r/min, and the fan speed IV corresponding to the second temperature interval IV is 700r/min.

S303. Control the operation of the fan according to the preset fan speed.

S304, obtain the new inner room temperature after running according to the preset fan speed of step S303, and perform operation control according to the new inner room temperature and the target temperature.

Specifically, in S3041, obtain the new inner room temperature after running according to the preset fan speed in step S303 (the main change of the new inner room temperature is caused by the preset heating model), when the new inner room temperature is less than or equal to When the target temperature is reached, the second target temperature range' in which the new inner room temperature is located is determined. S3042. Obtain a preset fan speed corresponding to the second target temperature interval '. S3043. Control the operation of the fan according to the preset fan speed'. This cycle is repeated until the obtained latest inner room temperature reaches the target temperature, then the cycle process is exited, and the control process of step S103 is entered. For more specific description, refer to the aforementioned steps 2051 to S2056.

In the embodiment of the present disclosure, the fan speed of the control fan is reduced in a stepwise manner to control the wind power, which cooperates with the preset heating mode to more precisely control the temperature recovery process.

In some embodiments, after determining that the fan speed corresponding to the second target characteristic temperature value is the preset fan speed, the method further includes:

S3023: Obtain the second previous duration of the previous inner room temperature within the second previous temperature interval, wherein the second previous temperature interval is adjacent to the second target temperature interval, and the upper limit of the second previous temperature interval The value is less than the lower limit value of the second target temperature interval. The second previous duration can be obtained by the difference between the start time of the inner room temperature entering the second previous temperature interval and the start time of entering the second target temperature interval, or can be obtained by a timer, which is not limited.

S3024. Determine a target second coefficient corresponding to the second previous duration according to the negative correlation between the second coefficient and the second duration. The value range of the second coefficient is [0.8, 1.2]; wherein, a standard duration is set for the second duration. When the second duration is the standard duration, the second coefficient is 1, that is, the fan speed is not corrected. . When the second duration is less than the standard duration, it means that the heating power is large and the temperature rises quickly, then the value range of the second coefficient is (1, 1.2], so that the revised fan speed is higher than the preset fan speed, and the wind power is enhanced. , to speed up the diffusion of the heating temperature of the heating wire and reduce the temperature hysteresis. On the contrary, when the second duration is longer than the standard duration, it means that the heating power is small, the temperature rise is slow, and the temperature hysteresis is small, then the value range of the second coefficient is [0.8, 1), so that the revised fan speed is lower than the preset fan speed, which can reduce the wind power and save energy. That is, the larger the second duration, the smaller the second coefficient; the smaller the second duration, the larger the second coefficient.

S3025. Determine the revised fan speed according to the product of the target second coefficient and the preset fan speed; and control the operation of the fan according to the corrected fan speed.

This embodiment is applicable to include two or more than two second preset temperature intervals, and is executed when the current inner room temperature enters the second second preset temperature interval and subsequent second preset temperature intervals.

In the embodiment of the present disclosure, for the first preset temperature interval in the preset heating mode and the second preset temperature interval in the preset operation mode, "first" and "second" are only used to distinguish the preset heating mode and preset operating modes. Wherein, the division of the first preset temperature interval and the second preset temperature interval can be the same, and the adjustment of the heating power of the heating wire is synchronized with the adjustment of the fan speed of the fan. The second", unified into the preset temperature range. Of course, the division of the two can be different, and the adjustment of the heating power of the heating wire is not synchronized with the adjustment of the fan speed of the fan. At this time, "first" and "second" cannot be ignored.

With reference to FIG. 4 , after the inner room temperature heated by the preset heating mode reaches the target temperature, it further includes:

S401. Acquire a current third duration of time when the interior room temperature heated by the preset heating mode is equal to or greater than the target temperature. When the inner room temperature reaches the target temperature, the timing is started, and the time obtained is the current third duration.

S402. Determine the current fan speed corresponding to the current third duration according to the correlation between the fan speed and the third duration; wherein the fan speed is less than the minimum fan speed in the preset operation mode. That is, the control fan speed is smaller than the minimum fan speed in the preset operation mode. That is, after the indoor temperature reaches the target temperature, the fan speed is reduced to reduce energy consumption.

Optionally, the fan speed is reduced to the initial fan speed. The initial fan speed is the fan speed of the fan before the door of the constant temperature incubator is opened. The initial fan speed can be zero, or can be any other suitable fan speed value, for example, the initial fan speed is 600-650 r/min.

Optionally, the correlation between the rotational speed of the blower and the third duration includes: the rotational speed of the blower decreases at a first set rate. For example, control the fan speed to decrease to the initial fan speed at a rate of 5 to 10 r/min.

Optionally, the correlation between the rotational speed of the fan and the third duration includes: the rotational speed of the fan decreases in steps. For example, first control the fan speed to decrease to the first fan speed at a second set rate, and then reduce it to the initial fan speed at a third set rate after running for a first set time. That is, after the indoor temperature reaches the target temperature, the fan still runs at a high speed for the first set time to reduce the temperature hysteresis effect.

S403 , controlling the operation of the fan according to the current speed of the fan.

In some embodiments, the method for controlling the temperature return of the constant temperature incubator further includes: when the door of the constant temperature incubator is in an open state, controlling the fan to stop running. Reducing the range of the temperature of the inner chamber of the constant temperature incubator during the door opening period is conducive to rapid temperature recovery.

With reference to FIG. 5 , an embodiment of the present disclosure provides a control device for rapid temperature recovery of a constant temperature incubator, including a processor 50 and a memory 51 . Optionally, the apparatus may further include a communication interface (Communication Interface) 52 and a bus 53 . The processor 50 , the communication interface 52 , and the memory 51 can communicate with each other through the bus 53 . The communication interface 52 may be used for information transfer. The processor 50 can call the logic instructions in the memory 51 to execute the control method for the rapid temperature recovery of the constant temperature incubator of the above-mentioned embodiment.

In addition, the above-mentioned logic instructions in the memory 51 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

As a computer-readable storage medium, the memory 51 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 50 executes functional applications and data processing by running the program instructions/modules stored in the memory 51 , that is, to implement the control method for rapid temperature recovery of the constant temperature incubator in the above embodiment.

The memory 51 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 51 may include high-speed random access memory, and may also include non-volatile memory.

An embodiment of the present disclosure provides a constant temperature incubator, including the above-mentioned control device for rapid temperature recovery of the constant temperature incubator.

Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions, where the computer-executable instructions are configured to execute the above-mentioned control method for rapid temperature recovery of a constant temperature incubator.

An embodiment of the present disclosure provides a computer program product, where the computer program product includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions that, when executed by a computer, cause all The computer executes the above-mentioned control method for rapid temperature recovery of a constant temperature incubator.

The above-mentioned computer-readable storage medium may be a transient computer-readable storage medium, and may also be a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present disclosure may be embodied in the form of software products, and the computer software products are stored in a storage medium and include one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to execute all or part of the steps of the methods described in the embodiments of the present disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: U disk, removable hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc. A medium that can store program codes, and can also be a transient storage medium.

The foregoing description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, process, and other changes. The examples represent only possible variations. Unless expressly required, individual components and functions are optional and the order of operations may vary. Portions and features of some embodiments may be included in or substituted for those of other embodiments. Also, the terms used in this application are used to describe the embodiments only and not to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a" (a), "an" (an) and "the" (the) are intended to include the plural forms as well, unless the context clearly dictates otherwise. . Similarly, the term "and/or" as used in this application is meant to include any and all possible combinations of one or more of the associated listings. Additionally, when used in this application, the term "comprise" and its variations "comprises" and/or including and/or the like refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, or device that includes the element. Herein, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments may refer to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, reference may be made to the descriptions of the method sections for relevant parts.

Those skilled in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software may depend on the specific application and design constraints of the technical solution. Skilled artisans may use different methods for implementing the described functionality for each particular application, but such implementations should not be considered beyond the scope of the disclosed embodiments. The skilled person can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units can refer to the corresponding processes in the foregoing method embodiments, and details are not repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to apparatuses, devices, etc.) may be implemented in other ways. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units may only be a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined Either it can be integrated into another system, or some features can be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. This embodiment may be implemented by selecting some or all of the units according to actual needs. In addition, each functional unit in the embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code that contains one or more functions for implementing the specified logical function(s) executable instructions. In some alternative implementations, the functions noted in the blocks may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, operations or steps corresponding to different blocks may also occur in different sequences than those disclosed in the description, and sometimes there is no specific relationship between different operations or steps. order. For example, two consecutive operations or steps may, in fact, be performed substantially concurrently, or they may sometimes be performed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented in special purpose hardware-based systems that perform the specified functions or actions, or special purpose hardware implemented in combination with computer instructions.

Claims (10)

1. A method for controlling the temperature of a constant temperature incubator, comprising:

   After determining that the door of the constant temperature incubator is switched from open to closed, obtain the current inner room temperature of the constant temperature incubator;

   When the current inner room temperature is equal to or greater than the preset temperature and less than or equal to the target temperature, the heating wire arranged in the constant temperature incubator is controlled to be heated in a preset heating mode, and the fan is controlled to operate in a preset operation mode;

   After the inner chamber temperature heated by the preset heating mode reaches the target temperature, the heating power of the heating wire is adjusted to an initial power; wherein, the initial power is smaller than a preset value in the preset heating mode heating power.
2. The control method according to claim 1, further comprising:

   When the current inner room temperature is lower than the preset temperature, the heating wire is controlled to be heated at a set power, and the fan is controlled to run at a set speed; wherein the set power is greater than the preset heating mode The preset heating power in the preset rotation speed is greater than the preset fan rotation speed in the preset operation mode.
3. The control method according to claim 1, wherein controlling the heating wire to heat in a preset heating mode comprises:

   in a plurality of consecutive first preset temperature intervals, determining a first target temperature interval in which the current inner room temperature is located;

   obtaining a preset heating power corresponding to the first target temperature interval;

   controlling the heating of the heating wire according to the preset heating power;

   acquiring a new inner chamber temperature heated according to the preset heating power, and performing heating control according to the new inner chamber temperature and the target temperature;

   Wherein, the lower limit value of each of the first preset temperature intervals is greater than or equal to the preset temperature, and the upper limit value is less than or equal to the target temperature.
4. The control method according to claim 3, wherein obtaining the preset heating power corresponding to the first target temperature interval comprises:

   obtaining a first target characteristic temperature value of the first target temperature interval; wherein, the first target characteristic temperature value reflects the temperature of the first target temperature interval;

   According to the negative correlation between the heating power and the first characteristic temperature value, the heating power corresponding to the first target characteristic temperature value is determined as the preset heating power.
5. The control method according to claim 4, characterized in that, after determining that the heating power corresponding to the first target characteristic temperature value is the preset heating power, further comprising:

   Obtaining a first previous duration of a previous inner room temperature within a first previous temperature interval, wherein the first previous temperature interval is adjacent to the first target temperature interval, and the first previous temperature The upper limit of the interval is less than the lower limit of the first target temperature interval;

   determining a target first coefficient corresponding to the first previous duration according to the positive correlation between the first coefficient and the first duration;

   The corrected heating power is determined according to the product of the target first coefficient and the preset heating power, so as to control the heating of the heating wire according to the corrected heating power.
6. The control method according to claim 1, wherein controlling the fan to operate in a preset operation mode comprises:

   in a plurality of consecutive second preset temperature intervals, determining a second target temperature interval in which the current inner room temperature is located;

   obtaining a preset fan speed corresponding to the second target temperature interval;

   controlling the operation of the fan according to the preset fan speed;

   acquiring the new inner room temperature after running according to the preset fan speed, and performing operation control according to the new inner room temperature and the target temperature;

   Wherein, the lower limit value of each second preset temperature interval is greater than or equal to the preset temperature, and the upper limit value is less than or equal to the target temperature.
7. The control method according to claim 6, wherein obtaining the preset fan speed corresponding to the second target temperature interval comprises:

   obtaining a second target characteristic temperature value of the second target temperature interval; wherein, the second target characteristic temperature value reflects the temperature of the second target temperature interval;

   According to the negative correlation between the rotational speed of the blower and the second characteristic temperature value, the rotational speed of the blower corresponding to the second target characteristic temperature value is determined as the preset rotational speed of the blower.
8. The control method according to claim 7, wherein after determining that the fan speed corresponding to the second target characteristic temperature value is the preset fan speed, the method further comprises:

   Obtaining a second previous duration of a previous inner room temperature within a second previous temperature interval, wherein the second previous temperature interval is adjacent to the second target temperature interval, and the second previous temperature interval The upper limit of the interval is less than the lower limit of the second target temperature interval;

   Determine the target second coefficient corresponding to the second previous duration according to the negative correlation between the second coefficient and the second duration;

   According to the product of the target second coefficient and the preset fan speed, the corrected fan speed is determined; and the fan operation is controlled according to the corrected fan speed.
9. The control method according to any one of claims 1 to 8, characterized in that, after the temperature of the inner room heated by the preset heating mode reaches the target temperature, further comprising:

   obtaining a current third duration for which the interior room temperature heated by the preset heating mode is equal to or greater than the target temperature;

   determining the current fan speed corresponding to the current third duration according to the correlation between the fan speed and the third duration; wherein the current fan speed is less than the preset fan speed in the preset operation mode;

   The operation of the fan is controlled according to the current fan speed.
10. A constant temperature incubator, characterized in that it includes a control device, and the control device includes:

    memory, storing program instructions;

    The processor is configured to, when executing the program instructions, execute the control method for rapid temperature recovery of a constant temperature incubator according to any one of claims 1 to 9.

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