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

Abstract

The present application relates to the technical field of culture devices, and discloses a control method for the temperature return of a constant temperature incubator, including: after determining that the door of the constant temperature incubator switches from open to closed, obtaining the current interior temperature of the constant temperature incubator; when the current interior temperature is between the preset temperature and the target temperature, controlling the heating wire to heat in a preset heating mode, and controlling the fan to operate in a preset operation mode; after the interior temperature after heating in the preset heating mode reaches the target temperature, adjusting the heating power of the heating wire to the initial power. According to the change of the interior temperature, the heating wire and the fan are controlled in a targeted manner, and through the synergistic effect of the heating wire and the fan, the precise temperature return control of the incubator is achieved, and the temperature overshoot will not occur, meeting the fluctuation requirements of the interior temperature near the set temperature; the interior temperature of the incubator can be restored to the target temperature within a reasonable time, thereby improving the culture effect of cells in the incubator. The present application also discloses a constant temperature incubator.

Description

Technical Field

[0001] The present application relates to the technical field of culture devices, for example, to a control method for returning the temperature of a constant temperature incubator and a constant temperature incubator. Background Art

[0002] At present, a constant temperature incubator, for example, a carbon dioxide constant temperature incubator, is a box that controls temperature and carbon dioxide concentration. A door body is arranged on the front side of the box body, the door body is pivotally connected to the box body, and the door body is sealed and fastened to the box body to form an inner chamber. Heating wires are arranged on the inner wall of the inner chamber for heating the inner chamber, wherein the heating wires include a main heating wire composed of left and right side, top and bottom heating wires, a door heating wire and a cabinet heating wire.

[0003] The constant temperature incubator has extremely strict control over the temperature of the inner room, and the temperature fluctuation must comply with the set temperature ±0.1°C. For example, the temperature and concentration controlled in the constant temperature incubator are 37°C ±0.1, 5% ±0.1 and the humidity is above 90%, respectively. The environment inside the human body is simulated for cell culture, and the temperature control is extremely strict. Since experimenters need to open and close the door frequently to store cell culture dishes, the temperature inside the box will drop when the door is open. Therefore, the temperature inside the box needs to be restored to the set temperature after the door is closed, which is the temperature recovery process.

[0004] In the prior art, the temperature of the inner chamber is adjusted by controlling the heating wire. If the temperature rises too quickly, due to the temperature hysteresis of the heating wire, the temperature overshoot will be serious, the fluctuation will not meet the requirements, and the cells will be burned to death due to the high temperature. As a second choice, setting a longer temperature return time while ensuring that the temperature does not overshoot will only cause the cells to grow slower, but will not cause cell death. Therefore, how to accurately control the temperature return process of the constant temperature incubator so that the temperature does not overshoot and the cells can grow in a better environment to improve the culture effect of the cells in the incubator has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The embodiments of the present disclosure provide a control method and a control device for the temperature recovery of a constant temperature incubator, and a constant temperature incubator, so as to solve the technical problem of the long temperature recovery time of the existing constant temperature incubator.

[0007] 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 interior temperature of the constant temperature incubator; when the current interior temperature is between a preset temperature and a target temperature, controlling a heating wire arranged in the constant temperature incubator to heat in a preset heating mode, and controlling a fan to operate in a preset operating mode; after the interior temperature after heating in the preset heating mode reaches the target temperature, adjusting the heating power of the heating wire to an initial power; wherein the initial power is less than a preset heating power in the preset heating mode.

[0008] In some embodiments, the control device for rapid temperature recovery of a constant temperature incubator comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the aforementioned control method for rapid temperature recovery of a constant temperature incubator when executing the program instructions.

[0009] In some embodiments, the constant temperature incubator comprises the aforementioned control device for rapid temperature recovery of the constant temperature incubator.

[0010] The control method and control device for the temperature return of a constant temperature incubator and the constant temperature incubator provided in the embodiments of the present disclosure can achieve the following technical effects:

[0011] The control method for rapid temperature recovery of a constant temperature incubator in the disclosed embodiment controls the heating wire and the fan in a targeted manner according to the change in the inner room temperature when the inner room temperature of the constant temperature incubator is between a preset temperature and a target temperature. Through the synergistic effect of the heating wire and the fan, accurate temperature recovery control of the incubator is achieved without temperature overshoot, thereby meeting the fluctuation requirement of the inner room temperature near the set temperature. The inner room temperature of the incubator can also be restored to the target temperature within a reasonable time, thereby ensuring that cells grow in a better environment and improving the culture effect of cells in the incubator.

[0012] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0014] Figure 1 It is a flow chart of a control method for returning the temperature of a constant temperature incubator provided by an embodiment of the present disclosure;

[0015] Figure 2 It is a flow chart of another control method for returning the temperature of a constant temperature incubator provided by an embodiment of the present disclosure;

[0016] Figure 3 It is a flow chart of another control method for returning the temperature of a constant temperature incubator provided by an embodiment of the present disclosure;

[0017] Figure 4 It is a flow chart of another control method for returning the temperature of a constant temperature incubator provided by an embodiment of the present disclosure;

[0018] Figure 5 It is a structural schematic diagram of a control device for returning the temperature of a constant temperature incubator provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0019] In order to be able 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 is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0020] The terms "first", "second", etc. in the specification 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 terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0021] Unless otherwise stated, the term "plurality" means two or more.

[0022] 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 indicates: A or B.

[0023] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0024] In the disclosed embodiment, the constant temperature incubator is a box used for biological culture, and the temperature control of the inner chamber is extremely strict. The temperature fluctuation must comply with the set temperature of ±0.1°C. Generally, the set temperature is 37°C.

[0025] Combination Figure 1 As shown, the embodiment of the present disclosure provides a control method for returning the temperature of a constant temperature incubator, comprising:

[0026] S101, after determining that the door of the constant temperature incubator is switched from open to closed, obtaining the current interior temperature of the constant temperature incubator.

[0027] The current inner room temperature can be obtained by a temperature sensor disposed in the inner room of the constant temperature incubator.

[0028] 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, the heating wire arranged in the constant temperature incubator is controlled to heat in a preset heating mode, and the fan is controlled to operate in a preset operating mode.

[0029] The target temperature is greater than the preset temperature. Here, the target temperature can be the set temperature of the constant temperature incubator, for example, 37°C. The target temperature can also be lower than the set temperature of the constant temperature incubator by a temperature value ΔT of the allowable fluctuation. For example, if ΔT is 0.1°C, then the target temperature is 36.9°C, which is 0.1°C lower than the set temperature (37°C) of the constant temperature incubator. For a constant temperature incubator, the temperature fluctuation should be consistent with 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; setting the target temperature to 36.9°C reserves a temperature overshoot interval of 2ΔT (e.g., 0.2°C) for the inner room temperature, effectively avoiding overshoot.

[0030] The preset temperature is lower than the target temperature, but higher than the temperature value after the maximum temperature drop during the door opening of the constant temperature incubator (e.g., 32°C). 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.

[0031] In the preset heating mode and the preset operating 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 precise temperature return control of the incubator.

[0032] Optionally, in the first preset heating mode, heating is performed at a set heating rate, that is, heating is performed at 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, overheating is avoided to avoid overshoot. Optionally, the heating rate is 1.25°C / min.

[0033] Optionally, in the second preset heating mode, the lower the current inner room temperature, the greater the heating power of the heating wire. When the inner room temperature is far from the target temperature, a large heating power is used for heating to accelerate the increase of the inner room temperature; as the inner room temperature increases and gets closer to the target temperature, the heating power is reduced, the heating rate is reduced, the temperature hysteresis of the inner room temperature is slowed down, and overshoot is avoided. 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 a step-like manner. That is, in the preset heating mode of this embodiment, there are at least two or more different preset heating powers.

[0034] Optionally, in the preset operation mode, the lower the current room temperature, the higher the fan speed of the fan. Combined with the preset heating mode, when the current room temperature is low, the heating power of the heating wire is controlled to be high and the fan speed of the fan is controlled to be high, so as to increase the room temperature as quickly as possible; after the room temperature increases, the heating power of the heating wire is controlled to be reduced and the fan speed of the fan is controlled to be reduced, so as to reduce the rate of increase of the room temperature and the temperature hysteresis of the heating wire.

[0035] Optionally, in the first preset operation mode, the fan is controlled to reduce the fan speed at a set rate. For example, the fan is controlled to reduce the fan speed at a rate of 10 to 20 r / min. Optionally, the fan is controlled to reduce the fan speed at a rate of 15 r / min. That is, in the preset operation mode of this embodiment, the preset fan speed decreases as the heating time increases.

[0036] Optionally, in the second preset operation mode, the fan is controlled to reduce the fan speed in a step-by-step manner. As the temperature of the inner room increases, the fan speed of the fan is reduced, and the temperature recovery process is accurately controlled in coordination with the adjustment of the heating power of the heating wire. That is, in the preset operation mode of this embodiment, there are at least two or more different preset fan speeds.

[0037] For the case where 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, controlling the heating wire to heat with the set power, and controlling the fan to run at the set speed. Among them, 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 operating mode. When the current inner room temperature is lower than the preset temperature, a higher set power is used for heating and a larger set wind speed is used to run, speeding up the temperature recovery rate, and after being equal to or greater than the preset temperature, the preset heating mode and the preset operating mode are used to control the heating power and the fan speed, which can more accurately control the temperature recovery process of the constant temperature incubator, that is, quickly recover the temperature without overshooting. For example, the power is set to 5P, where P is the initial power. The speed is set to 1100r / min.

[0038] S103, after the temperature of the inner chamber reaches the target temperature after being heated by the preset heating mode, adjusting 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.

[0039] 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 temperature of the inner room reaches the target temperature, the heating power of the heating wire is adjusted to return to the heating power before the door is opened to complete the temperature return control. The specific value of the initial power is not limited and is determined based on 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 to 100W. For example, the initial power is 80W.

[0040] By adopting the control method for temperature recovery of a constant temperature incubator according to the embodiment of the present disclosure, when the inner room temperature 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), the heating wire and the fan are controlled in a targeted manner according to the change of the inner room temperature. Through the synergistic effect of the heating wire and the fan, precise temperature recovery control of the incubator is achieved without temperature overshoot, thereby meeting the fluctuation requirement of the inner room temperature near the target temperature. The inner room temperature of the incubator can also be restored to the target temperature within a reasonable time, thereby ensuring that the cells grow in a better environment, and improving the culture effect of the cells in the incubator.

[0041] Combination Figure 2 As shown, controlling the heating wire to heat in a preset heating mode includes:

[0042] S201. Determine a first target temperature interval in which a current interior room temperature is located among a plurality of consecutive first preset temperature intervals.

[0043] Among them, 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 temperature range from the preset temperature to the target temperature is divided into multiple continuous temperature intervals. The number of divided temperature intervals is not limited, for example, 2, 3, 4, 5 or more, etc., is 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 also not limited, and it can be divided with equal span or variable span.

[0044] Optionally, the temperature spans of a plurality of consecutive first preset temperature intervals are the same. The temperature span can be controlled within a range of 0.1°C to 1°C, determined according to the temperature difference between the preset temperature and the target temperature and the number of divided temperature intervals.

[0045] 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. The first temperature interval I is [34.5°C, 35.1°C), the first temperature interval II is [35.1°C, 35.7°C), the first temperature interval III is [35.7°C, 36.3°C), and the first temperature interval IV is [36.3°C, 36.9°C). Here, when the current interior temperature is 35°C, the first target temperature interval is the first temperature interval I; when the current interior temperature is 36°C, the first target temperature interval is the first temperature interval III.

[0046] 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. 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 interior temperature is 36°C, the first target temperature interval is the first temperature interval I; when the current interior temperature is 36.5°C, the first target temperature interval is the first temperature interval II.

[0047] Optionally, the spans of the plurality of consecutive first preset temperature intervals are different. As the temperature value increases from low to high, the span of the first preset temperature interval increases; or, as the temperature value increases from low to high, the span of the first preset temperature interval decreases first and then increases.

[0048] For example, in the third division method, the preset temperature is 34°C and the target temperature is 36.9°C. The temperature range from 34°C to 36.9°C is divided into four continuous temperature ranges in a manner that the temperature value increases from low to high and the span of the first preset temperature range increases. The first temperature range I is [34°C, 34.5°C), the first temperature range II is [34.5°C, 35.2°C), the first temperature range III is [35.2°C, 36°C), and the first temperature range IV is [36°C, 36.9°C). Here, when the current interior temperature is 35°C, the first target temperature range is the first temperature range II; when the current interior temperature is 36°C, the first target temperature range is the first temperature range IV.

[0049] For example, in the fourth division method, the preset temperature is 33.8°C and the target temperature is 36.9°C. The temperature value is from low to high, and the span of the first preset temperature interval is first reduced and then increased to divide 33.8°C to 36.9°C 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), the first temperature interval III is [35.6°C, 36.1°C), and the first temperature interval IV is [36.1°C, 36.9°C). Here, when the current interior temperature is 35°C, the first target temperature interval is the first temperature interval II; when the current interior temperature is 36°C, the first target temperature interval is the first temperature interval III.

[0050] S202: Obtain a preset heating power corresponding to a first target temperature range.

[0051] Each preset temperature interval corresponds to a preset heating power, which enables step-by-step adjustment of the heating power of the heating wire and more precise control of the temperature recovery process.

[0052] Specifically, obtaining a 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 temperature of the first target temperature interval. S2022, according to the negative correlation between the heating power and the first characteristic temperature value, determining that the heating power corresponding to the first target characteristic temperature value is the preset heating power.

[0053] The first characteristic temperature value reflects the temperature of the first temperature interval. The first characteristic temperature value may be the lower limit, upper limit or average value of the first temperature interval, etc., as long as it can reflect the temperature of the first temperature interval. For example, in the first division method described above, the first characteristic temperature value I of the first temperature interval I ([34.5°C, 35.1°C)) is 34.5°C (lower limit) or 34.8°C (average value), the first characteristic temperature value II of the first temperature interval II ([35.1°C, 35.7°C)) is 35.1°C or 35.4°C, 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, and 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.

[0054] The negative correlation between the heating power and the first characteristic temperature value is preset, and the heating power decreases as the value of the first characteristic temperature value increases, so that the heating power of the heating wire changes in a step-by-step manner.

[0055] 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 in the range of [4P, 1.5P]. For example, in the first division method mentioned above, 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°C, and the heating power III is 2.5P; the first characteristic temperature value IV is 36.3°C, and the heating power IV is 1.5P.

[0056] S203, controlling the heating wire to heat according to the preset heating power.

[0057] S204, obtaining a new interior temperature after heating according to the preset heating power in step S203, and performing heating control according to the new interior temperature and the target temperature.

[0058] Specifically, S2041, obtain the new interior temperature after heating according to the preset heating power of step S203, and when the new interior temperature is less than or equal to the target temperature, determine the first target temperature interval ' in which the new interior temperature is located. S2042, obtain the preset heating power ' corresponding to the first target temperature interval '. S2043, control the heating wire to heat according to the preset heating power '. This cycle is repeated until the latest interior temperature obtained reaches the target temperature, then the cycle process is exited and the control process of step S103 is entered.

[0059] Here, the aforementioned first division method is taken as an example for specific description. Specifically, the following steps are included: S2051, obtain the current interior room temperature, such as 35°C, determine the first target temperature interval in which it is located, such as the first temperature interval I; S2052, determine the preset heating power corresponding to the first target temperature interval (first temperature interval I), such as heating power I is 4P, then control the heating wire to heat with the preset heating power (4P). S2053, obtain the new interior room temperature after heating with the preset heating power (4P), and determine the relationship between the new interior room temperature and the target temperature; when the new interior room temperature is less than the target temperature, execute steps S2054 to S2055, otherwise, execute S2056.

[0060] S2054, determining the first target temperature interval ' in which the new interior temperature is located; for example, the new interior temperature is 35.1° C., and the first target temperature interval ' in which it is located is the first temperature interval II.

[0061] 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 interior temperature after heating with the preset heating power ', and determine the relationship between the new interior temperature and the target temperature, until the new interior temperature reaches the target temperature, and execute S2056.

[0062] S2056, adjusting 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 preset heating power corresponding to the condition of "the new interior temperature reaches the target temperature" in step S2053.

[0063] In the disclosed embodiment, the heating power of the heating wire is reduced in a step-by-step manner, so that the temperature recovery process is more accurately controlled.

[0064] 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:

[0065] S2023, obtaining a first previous duration of the previous indoor temperature in 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 is less than the lower limit of the first target temperature interval. The first previous duration can be obtained by the difference between the start time of the indoor temperature entering the first previous temperature interval and the start time of entering the first target temperature interval, or by a timer, without limitation.

[0066] S2024. According to the positive correlation between the first coefficient and the first duration, determine the target first coefficient corresponding to the first previous 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 the 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 means that the heating power is too large and the temperature rises too fast. Then the value range of the first coefficient is [0.8, 1), so that the corrected heating power is smaller than the preset heating power. On the contrary, when the first duration is greater than the standard duration, it means that the heating power is too small and the temperature rises too slowly. Then the value range of the first coefficient is (1, 1.2], so that the corrected heating power is larger than the preset heating power. That is, the larger the first duration, the larger the first coefficient; the smaller the first duration, the smaller the first coefficient.

[0067] S2025. Determine a 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.

[0068] This embodiment is applicable to a case where two or more first preset temperature intervals are included and the method is executed when the current interior room temperature enters the second first preset temperature interval and the subsequent first preset temperature interval.

[0069] Combination Figure 3 As shown, the fan is controlled to operate in a preset operation mode, including:

[0070] S301. Determine a second target temperature interval in which the current interior temperature is located among a plurality of consecutive second preset temperature intervals.

[0071] Among them, the lower limit value of each of the second preset temperature intervals 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 temperature interval from the preset temperature to the target temperature is divided into multiple continuous temperature intervals. The number of divided temperature intervals is not limited, for example, 2, 3, 4, 5 or more, etc., is 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 also not limited, and it can be divided with equal spans or variable spans.

[0072] 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. The second temperature interval I is [34.5°C, 35.1°C), the second temperature interval II is [35.1°C, 35.7°C), the second temperature interval III is [35.7°C, 36.3°C), and the second temperature interval IV is [36.3°C, 36.9°C). Here, when the current interior temperature is 35°C, the second target temperature interval is the second temperature interval I; when the current interior temperature is 36°C, the second target temperature interval is the second temperature interval III. The remaining division methods refer to the division method of the first preset temperature interval in the aforementioned step S201, which will not be repeated here.

[0073] S302: Obtain a preset fan speed corresponding to a second target temperature range.

[0074] Each preset temperature range corresponds to a preset fan speed; the fan speed of the fan can be adjusted in a step-by-step manner to more accurately control the temperature recovery process.

[0075] Specifically, obtaining a 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 temperature of the second target temperature interval. S3022, according to the negative correlation between the fan speed and the second characteristic temperature value, determining that the fan speed corresponding to the second target characteristic temperature value is the preset fan speed.

[0076] The second characteristic temperature value reflects the temperature of the second temperature interval, and the first characteristic temperature value can be the lower limit, upper limit or average value of the first temperature interval, etc., which can reflect the temperature of the first temperature interval. Refer to the setting of the first characteristic temperature value in the aforementioned step S2021, which will not be repeated here.

[0077] The negative correlation between the fan speed and the second characteristic temperature value is preset, and the fan speed decreases in a step-by-step manner as the second characteristic temperature value increases, so that the fan speed of the fan changes in a step-by-step manner.

[0078] Optionally, the fan speed is controlled to decrease in steps of 100 r / min. For example, for the first division method recorded in step S301, the fan speed I corresponding to the second temperature interval I is controlled to be 1000 r / min, the fan speed II corresponding to the second temperature interval II is controlled to be 900 r / min, the fan speed III corresponding to the second temperature interval III is controlled to be 800 r / min, and the fan speed IV corresponding to the second temperature interval IV is controlled to be 700 r / min.

[0079] S303: Control the operation of the fan according to a preset fan speed.

[0080] S304, obtaining a new interior temperature after the fan is operated at the preset fan speed in step S303, and performing operation control according to the new interior temperature and the target temperature.

[0081] Specifically, S3041, obtain the new interior temperature after running at the preset fan speed of step S303 (the main change of the new interior temperature is caused by the preset heating model), and when the new interior temperature is less than or equal to the target temperature, determine the second target temperature interval ' in which the new interior temperature is located. S3042, obtain the preset fan speed ' corresponding to the second target temperature interval '. S3043, control the fan operation according to the preset fan speed '. This cycle is repeated until the latest interior temperature obtained reaches the target temperature, then the cycle process is exited and the control process of step S103 is entered. For more specific instructions, refer to the aforementioned steps 2051 to S2056.

[0082] In the disclosed embodiment, the fan speed is controlled to decrease in a step-by-step manner to control the wind force, which works in conjunction with a preset heating mode to more accurately control the temperature recovery process.

[0083] 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:

[0084] S3023, obtaining a second previous duration of the previous indoor temperature in 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 is less than the lower limit of the second target temperature interval. The second previous duration can be obtained by the difference between the start time of the indoor temperature entering the second previous temperature interval and the start time of entering the second target temperature interval, or by a timer, without limitation.

[0085] S3024. According to the negative correlation between the second coefficient and the second duration, determine the target second coefficient corresponding to the second previous 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. The value range of the second coefficient is (1, 1.2], so that the corrected fan speed is increased compared to the preset fan speed, the wind force is enhanced, the diffusion of the heating wire heating temperature is accelerated, and the temperature hysteresis is reduced. On the contrary, when the second duration is greater than the standard duration, it means that the heating power is small, the temperature rises slowly, and the temperature hysteresis is small. The value range of the second coefficient is [0.8, 1), so that the corrected fan speed is reduced compared to the preset fan speed, which can reduce wind force and save energy consumption. That is, the longer the second duration is, the smaller the second coefficient is; and the shorter the second duration is, the larger the second coefficient is.

[0086] S3025. Determine a corrected 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.

[0087] This embodiment is applicable to a system including two or more second preset temperature intervals and is executed when the current interior room temperature enters the second second preset temperature interval and the subsequent second preset temperature intervals.

[0088] In the disclosed embodiment, 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 from the preset operation mode. Among them, the division of the first preset temperature interval and the second preset temperature interval can be the same, then the adjustment of the heating power of the heating wire and the adjustment of the fan speed of the fan are synchronized, at this time, "first" and "second" can be ignored, and unified as the preset temperature interval. Of course, the division of the two can be different, then the adjustment of the heating power of the heating wire and the adjustment of the fan speed of the fan are not synchronized, at this time, "first" and "second" cannot be ignored.

[0089] Combination Figure 4As shown, after the temperature of the interior room heated by the preset heating mode reaches the target temperature, the method further includes:

[0090] S401, obtaining the current third duration of time during which the temperature of the interior room after heating in a preset heating mode is equal to or greater than the target temperature. When the temperature of the interior room reaches the target temperature, start timing, and the obtained timing time is the current third duration.

[0091] S402, according to the correlation between the fan speed and the third duration, determine the current fan speed corresponding to the current third duration; wherein the fan speed is less than the minimum fan speed in the preset operation mode. That is, control the fan speed to be less than the minimum fan speed in the preset operation mode. That is, after the indoor temperature reaches the target temperature, reduce the fan speed to reduce energy consumption.

[0092] Optionally, the fan speed is reduced to an 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 any other suitable fan speed value, for example, the initial fan speed is 600-650r / min.

[0093] Optionally, the correlation between the fan speed and the third duration includes: the fan speed is reduced at a first set rate, for example, the fan speed is controlled to be reduced to an initial fan speed at a rate of 5 to 10 r / min.

[0094] Optionally, the correlation between the fan speed and the third duration includes: the fan speed is reduced in a step-by-step manner. For example, the fan speed is first controlled to decrease to the first fan speed at the second set rate, and after running for the first set time, it is then reduced to the initial fan speed at the third set rate. That is, after the indoor temperature reaches the target temperature, the fan is still operated at a high fan speed for the first set time to reduce the temperature hysteresis effect.

[0095] S403: Control the operation of the fan according to the current fan speed.

[0096] In some embodiments, the control method for the temperature recovery of the constant temperature incubator further includes: when the door of the constant temperature incubator is open, controlling the fan to stop running. Reducing the drop in the temperature of the inner room of the constant temperature incubator during the door opening period is conducive to rapid temperature recovery.

[0097] Combination Figure 5As shown, 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 device may also include a communication interface 52 and a bus 53. The processor 50, the communication interface 52, and the memory 51 may communicate with each other through the bus 53. The communication interface 52 may be used for information transmission. The processor 50 may call the logic instructions in the memory 51 to execute the control method for rapid temperature recovery of a constant temperature incubator of the above embodiment.

[0098] In addition, the logic instructions in the above-mentioned 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.

[0099] The memory 51 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present disclosure. The processor 50 executes the functional application and data processing by running the program instructions / modules stored in the memory 51, that is, the control method for rapid temperature recovery of the constant temperature incubator in the above embodiment is realized.

[0100] The memory 51 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 51 may include a high-speed random access memory and may also include a non-volatile memory.

[0101] An embodiment of the present disclosure provides a constant temperature incubator, comprising the above-mentioned control device for rapid temperature recovery of the constant temperature incubator.

[0102] An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned control method for rapid temperature recovery of a constant temperature incubator.

[0103] An embodiment of the present disclosure provides a computer program product, which includes a computer program stored on a computer-readable storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned control method for rapid temperature recovery of a constant temperature incubator.

[0104] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0105] The technical solution of the embodiment of the present disclosure can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present disclosure. The aforementioned storage medium may be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes, or a transient storage medium.

[0106] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible changes. Unless explicitly required, separate components and functions are optional, and the order of operation may vary. The parts and features of some embodiments may be included in or replace the parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and the claims, unless the context clearly indicates, the singular forms of "a", "an" and "the" are intended to include plural forms as well. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of listings containing one or more associated ones. In addition, when used in the present application, the term "comprise" and its variants "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the presence of other identical elements in the process, method or device comprising the elements. In this article, 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 part disclosed in the embodiments, then the relevant parts can refer to the description of the method part.

[0107] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in 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. The technicians may use different methods for each specific application to implement the described functions, but such implementations should not be considered to exceed the scope of the embodiments of the present disclosure. The technicians may clearly understand that, for the convenience and simplicity of description, the specific working processes of the systems, devices and units described above may refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here.

[0108] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units can be only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, each functional unit in the embodiment of the present disclosure may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit.

[0109] The flowchart and block diagram in the accompanying drawings show the possible architecture, function and operation of the system, method and computer program product according to the embodiment of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and the module, the program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. In some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. In the description corresponding to the flowchart and the block diagram in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in a different order from the order disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified functions or actions, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling the temperature return of a constant temperature incubator, characterized in that: include: After determining that the door of the constant temperature incubator is switched from open to closed, obtaining the current interior 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 heat in a preset heating mode, and the fan is controlled to operate in a preset operating mode; After the temperature of the inner chamber reaches the target temperature after being heated in the preset heating mode, adjusting 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; Controlling the heating wire to heat in a preset heating mode includes: determining a first target temperature interval in which the current interior room temperature is located in a plurality of continuous first preset temperature intervals; 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; obtaining a first target characteristic temperature value of the first target temperature interval; wherein the first target characteristic temperature value reflects the temperature magnitude of the first target temperature interval; determining, based on a negative correlation between the heating power and the first characteristic temperature value, that the heating power corresponding to the first target characteristic temperature value is the preset heating power; controlling the heating wire to heat according to the preset heating power; obtaining a new interior room temperature after heating according to the preset heating power, and performing heating control according to the new interior room temperature and the target temperature; Controlling the fan to operate in a preset operation mode includes: determining a second target temperature interval in which the current interior temperature is located in a plurality of continuous second preset temperature intervals; 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; obtaining a second target characteristic temperature value of the second target temperature interval; wherein the second target characteristic temperature value reflects the temperature magnitude of the second target temperature interval; determining the fan speed corresponding to the second target characteristic temperature value as the preset fan speed according to the negative correlation between the fan speed and the second characteristic temperature value; controlling the fan operation according to the preset fan speed; obtaining a new interior temperature after operating at the preset fan speed, and performing operation control according to the new interior temperature and the target temperature; The temperature range from the preset temperature to the target temperature is divided into a plurality of continuous temperature intervals.

2. The control method according to claim 1, characterized in that: Also includes: When the current interior temperature is lower than the preset temperature, the heating wire is controlled to heat 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 power in the preset heating mode, and the set speed is greater than the preset fan speed in the preset operating mode.

3. The control method according to claim 1, characterized in that: After determining that the heating power corresponding to the first target characteristic temperature value is the preset heating power, the method further includes: Obtaining a first previous duration of the previous interior room temperature in a first previous temperature interval, wherein the first previous temperature interval is adjacent to the first target temperature interval, and an upper limit value of the first previous temperature interval is less than a lower limit value of the first target temperature interval; Determining a target first coefficient corresponding to the first previous duration according to a 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.

4. The control method according to claim 1, characterized in that: After determining that the fan speed corresponding to the second target characteristic temperature value is the preset fan speed, the method further includes: Obtaining a second previous duration of the previous interior room temperature in a second previous temperature interval, wherein the second previous temperature interval is adjacent to the second target temperature interval, and an upper limit value of the second previous temperature interval is less than a lower limit value of the second target temperature interval; Determining a target second coefficient corresponding to the second previous duration according to a negative correlation between the second coefficient and the second duration; The corrected fan speed is determined according to the product of the target second coefficient and the preset fan speed; and the operation of the fan is controlled according to the corrected fan speed.

5. The control method according to any one of claims 1 to 4, characterized in that: After the temperature of the inner chamber heated by the preset heating mode reaches the target temperature, the method further includes: acquiring a current third duration during which the temperature of the interior chamber after heating in the preset heating mode is equal to or greater than the target temperature; Determine a current fan speed corresponding to the current third duration according to a correlation between the fan speed and the third duration; wherein the current fan speed is less than a preset fan speed in the preset operation mode; The fan operation is controlled according to the current fan speed.

6. The control method according to any one of claims 1 to 4, characterized in that: Obtaining a new interior temperature after heating according to a preset heating power, and performing heating control according to the new interior temperature and a target temperature, including: Acquire a new interior temperature after heating according to a preset heating power, and when the new interior temperature is less than or equal to the target temperature, determine a first target temperature interval in which the new interior temperature is located'; Obtaining a preset heating power corresponding to the first target temperature interval '; According to the preset heating power, the heating wire is controlled to heat.

7. The control method according to any one of claims 1 to 4, characterized in that: Obtain the new interior temperature after the fan runs at the preset speed, and perform operation control according to the new interior temperature and the target temperature, including: Acquire a new interior temperature after the fan runs at a preset fan speed, and when the new interior temperature is less than or equal to the target temperature, determine a second target temperature interval in which the new interior temperature is located'; Obtaining a preset fan speed 'corresponding to the second target temperature range '; According to the preset fan speed, the fan operation is controlled.

8. A constant temperature incubator, characterized in that: A control device is included, wherein the control device includes: A memory storing program instructions; The processor is configured to execute the control method for rapid temperature recovery of a constant temperature incubator as described in any one of claims 1 to 7 when executing the program instructions.

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