Control method for a bioreactor and bioreactor

Abstract

This invention relates to the field of biological culture equipment technology, specifically providing a control method and a biological culture device for use in biological culture, aiming to solve the problem of condensation easily forming inside existing biological incubators during cooling. To this end, the biological culture device of this invention includes an incubator body and a heating element. The control method includes: activating the heating element when cooling the internal environment of the incubator; acquiring the internal ambient temperature T; acquiring the internal ambient humidity RH; acquiring the dew point temperature Td corresponding to the internal ambient temperature T and internal ambient humidity RH; acquiring the inner wall temperature Ti; and selectively adjusting the heating element to raise the inner wall temperature based on the dew point temperature Td and the inner wall temperature Ti. With this setup, when cooling the internal environment of the incubator, by adjusting the heating element to raise the inner wall temperature, the temperature of the inner wall of the incubator is always higher than the dew point temperature, thereby preventing condensation inside the incubator.

Description

Technical Field

[0001] This invention relates to the field of biological culture equipment technology, and specifically provides a control method and a biological culture device for biological culture apparatus. Background Technology

[0002] Sterilization in biological incubators is generally divided into dry heat and moist heat. The highest temperature of moist heat sterilization is 90℃. Although the temperature is lower than that of dry heat, moist heat sterilization is a high-humidity environment with extremely high penetrating power. The continuous high temperature and high humidity environment is sufficient to kill microorganisms such as highly resistant fungi and bacterial spores.

[0003] However, during the cooling process, existing biological incubators are prone to condensation on the inner walls due to the high humidity inside, which affects the normal use of the biological incubator.

[0004] Therefore, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that condensation easily occurs inside the existing biological incubator during the cooling process.

[0006] In a first aspect, the present invention provides a control method for a biological culture apparatus, the biological culture apparatus including a chamber and a heating element disposed on the inner wall of the chamber, the control method comprising: activating the heating element when the internal environment of the chamber is cooled; acquiring the internal environmental temperature T of the chamber; acquiring the internal environmental humidity RH of the chamber; acquiring a dew point temperature Td corresponding to the internal environmental temperature T and the internal environmental humidity RH; acquiring the temperature Ti of the inner wall; and selectively adjusting the heating element to increase the temperature of the inner wall according to the dew point temperature Td and the temperature Ti of the inner wall.

[0007] In the preferred embodiment of the above control method, the specific steps of "selectively adjusting the heating element to raise the temperature of the inner wall according to the dew point temperature Td and the temperature Ti of the inner wall" include: calculating the difference Δ = Ti - Td; comparing the difference Δ with a first preset value A1; and selectively adjusting the heating element to raise the temperature of the inner wall according to the comparison result; wherein, A1 > 0.

[0008] In the preferred embodiment of the above control method, the specific step of "selectively adjusting the heating element to raise the temperature of the inner wall according to the comparison result" includes: if Δ < A1, then adjusting the heating element to raise the temperature of the inner wall.

[0009] In the preferred embodiment of the above control method, the specific steps of "adjusting the heating element to increase the temperature of the inner wall" include: adjusting the heating power of the heating element to increase the temperature of the inner wall.

[0010] In a preferred embodiment of the above control method, after the heating component is started, the control method further includes: adjusting the heating power of the heating component to the maximum heating power; obtaining the running time t of the heating component; obtaining a preset heating power corresponding to the internal ambient temperature T and the running time t; and reducing the heating power of the heating component to the preset heating power.

[0011] In the preferred embodiment of the above control method, there are multiple heating components, each disposed on a corresponding inner wall, and each of the multiple heating components is independently adjustable.

[0012] In a preferred embodiment of the above control method, an auxiliary heating component is further provided on the inner wall, and the control method further includes: comparing the difference Δ with a second preset value A2; and selectively activating the auxiliary heating component according to the comparison result.

[0013] In the preferred embodiment of the above control method, the specific steps of "selectively activating the auxiliary heating component according to the comparison result" include: activating the auxiliary heating component when the difference Δ < A2 and the duration of the difference Δ < A2 exceeds a preset time; wherein, A2 < A1.

[0014] In the preferred embodiment of the above control method, the specific steps of "selectively adjusting the heating element to increase the temperature of the inner wall" include: if Δ≥A1, then the heating element is not adjusted.

[0015] In a second aspect, the present invention provides a biological culture apparatus, the biological culture apparatus of the present invention including a controller configured to perform the control method described above.

[0016] When the above technical solution is adopted, the present invention can activate the heating component to heat the inner wall of the box when the internal environment of the box is cooled. At the same time, the heating component can be selectively adjusted according to the dew point temperature and the temperature of the inner wall to raise the temperature of the inner wall. On the one hand, it can prevent the temperature of the inner wall from rising too much due to adjusting the heating component too early or too fast, thereby avoiding the cooling time of the box being too long and also avoiding energy waste. On the other hand, it can prevent the temperature of the inner wall of the box from falling below the dew point temperature due to untimely adjustment, thereby avoiding condensation in the box.

[0017] Furthermore, by first calculating the difference between the dew point temperature Td and the inner wall temperature Ti, and then comparing this difference with a preset value, the heating element is selectively adjusted to raise the inner wall temperature based on the comparison result. Compared with the method of directly comparing the dew point temperature Td with the inner wall temperature Ti and then selectively adjusting the heating element to raise the inner wall temperature based on the comparison result, misjudgments caused by detection errors of internal ambient temperature, internal ambient humidity, and inner wall temperature can be avoided, thereby improving the accuracy of adjusting the heating element.

[0018] Furthermore, when Δ < A1, adjusting the heating element to raise the temperature of the inner wall allows for timely adjustment of the heating element to raise the temperature of the inner wall when the temperature drops to near the dew point, thereby preventing condensation inside the chamber. Compared to adjusting the heating element to raise the temperature of the inner wall when the temperature drops to equal the dew point, this method prevents the temperature of the inner wall from falling below the dew point, thus making the adjustment of the heating element more timely and improving the effect of preventing condensation inside the chamber.

[0019] Furthermore, by adjusting the power of the heating element to raise the temperature of the inner wall, the temperature regulation of the inner wall becomes more direct and accurate, and the range of temperature increase of the inner wall is more easily controlled.

[0020] Furthermore, on the one hand, by first adjusting the heating power of the heating element to its maximum power and then adjusting it to a preset power corresponding to the internal ambient temperature and the operating time of the heating element, compared to first adjusting the heating power of the heating element to its minimum power and then gradually increasing the power, the temperature of the inner wall can be raised more quickly to prevent the temperature of the inner wall from falling below the dew point temperature, thereby better preventing condensation from forming inside the chamber. On the other hand, by setting the preset heating power of the heating element according to the internal ambient temperature and the operating time of the heating element, compared to setting the preset heating power of the heating element only according to the internal ambient temperature or only according to the operating time of the heating element, it is possible to ensure that the temperature of the inner wall is always above the dew point temperature, while avoiding excessively long cooling time of the biological incubator due to excessively large temperature rise of the inner wall caused by the heating element.

[0021] Furthermore, by setting multiple heating elements to be adjusted independently, compared to setting multiple heating elements to be adjusted together, it is possible to more accurately adjust the heating elements according to the difference between the temperature and dew point temperature on each inner wall to raise the temperature on the corresponding inner wall, thereby better preventing condensation on the inner wall.

[0022] Furthermore, by installing auxiliary heating components on the inner wall, when the heating components malfunction and fail to raise the temperature of the inner wall, the temperature of the inner wall can be raised by activating the auxiliary heating components, thereby preventing condensation from forming on the inner wall due to the temperature being lower than the dew point temperature.

[0023] Furthermore, by activating the auxiliary heating component when a difference Δ < A2 occurs and the duration of the difference Δ < A2 exceeds a preset time, compared to activating the auxiliary heating component when a difference Δ < A2 occurs, misjudgment caused by temperature detection error at a certain moment can be avoided. This allows for accurate determination of whether the heating component has malfunctioned. Consequently, when the heating component malfunctions, the auxiliary heating component can be activated in a timely manner to prevent condensation. When the heating component is not malfunctioning, the auxiliary heating component is not activated to avoid excessively long cooling time caused by the simultaneous operation of the heating component and the auxiliary heating component.

[0024] Furthermore, when △≥A1, it indicates that the temperature Ti of the inner wall is significantly higher than the dew point temperature Td. At this point, condensation will not occur, so there is no need to adjust the heating element to further increase the temperature Ti of the inner wall. This avoids the temperature Ti of the inner wall rising too high, which would result in an excessively long cooling time. At the same time, it also avoids energy waste.

[0025] Furthermore, the biological culture device further provided by the present invention, based on the above technical solution, possesses the beneficial effects of the control method described above due to the adoption of the control method described above. Compared with the biological culture device before the improvement, the biological culture device of the present invention can adjust the heating component more promptly to raise the temperature of the inner wall when the environment of the inner wall of the chamber is cooled, so that the anti-condensation effect of the biological culture device is better and the cooling time is shorter. Attached Figure Description

[0026] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the biological culture device of the present invention;

[0028] Figure 2 This is a flowchart of the control method of the present invention;

[0029] Figure 3 This is a flowchart of an embodiment of the control method of the present invention;

[0030] Figure 4 This is a schematic diagram comparing the heating power of the heating element of the present invention with the internal ambient temperature of the housing and the operating time of the heating element;

[0031] Figure 5This is a fitting curve of the temperature of the inner wall and the dew point temperature at the same moment during the cooling process of the biological culture device of the present invention in the internal environment of the chamber.

[0032] Figure 6 This is a fitting curve of the temperature of the inner wall and the temperature of the internal environment at the same moment during the cooling process of the biological culture device of the present invention.

[0033] List of reference numerals in the attached diagram:

[0034] 1. Box body; 11. Inner wall; 111. Heating component; 112. Second temperature sensor; 12. First temperature sensor; 13. Humidity sensor. Detailed Implementation

[0035] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0036] It should be noted that in the description of this invention, the term "internal" is based on the direction or positional relationship shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the term "setting" should be interpreted broadly. Those skilled in the art can understand the specific meaning of the above term in this invention according to the specific circumstances.

[0038] As noted in the background section, existing biological culture devices are prone to condensation during the cooling process. This invention provides a control method for biological culture chambers, aiming to prevent condensation from forming inside the chamber during the cooling process.

[0039] Please see Figure 1 , Figure 1 This is a schematic diagram of the biological culture device of the present invention.

[0040] like Figure 1 As shown, the biological culture device of the present invention includes a box 1 and a heating element 111 disposed on the inner wall 11 of the box 1.

[0041] Continue reading Figure 2 , Figure 2 This is a flowchart of the control method of the present invention.

[0042] like Figure 2 As shown, the control method of the present invention includes the following steps:

[0043] S100: When cooling the internal environment of the chamber 1, the heating element 111 is activated;

[0044] S200: Obtain the internal ambient temperature T of chamber 1;

[0045] S300: Obtain the internal ambient humidity (RH) of enclosure 1;

[0046] S400: Obtain the dew point temperature Td corresponding to the internal ambient temperature T and the internal ambient humidity RH;

[0047] S500: Obtains the temperature Ti of the inner wall;

[0048] S600: Based on the dew point temperature Td and the inner wall temperature Ti, the heating element 111 is selectively adjusted to raise the temperature of the inner wall 11.

[0049] With this setup, when the internal environment of the enclosure 1 is cooled, the heating element 111 is activated to heat the inner wall 11 of the enclosure 1. At the same time, the heating element 111 can be selectively adjusted according to the dew point temperature Td and the inner wall temperature Ti to raise the temperature of the inner wall 11. On the one hand, this can prevent the temperature of the inner wall 11 from rising too much due to adjusting the heating element 111 too early or too quickly, thereby avoiding excessive cooling time of the enclosure 1 and energy waste. On the other hand, it can prevent the temperature of the inner wall 11 from falling below the dew point temperature due to untimely adjustment, thereby preventing condensation from forming inside the enclosure 1.

[0050] It should be noted that, in practical applications, those skilled in the art can install a temperature sensor inside the enclosure 1 and obtain the internal ambient temperature T of the enclosure 1 through the value of the temperature sensor, or they can install a thermometer inside the enclosure 1 and obtain the internal ambient temperature T of the enclosure 1 through the value of the thermometer, etc. Such adjustments and changes to the specific method of obtaining the internal ambient temperature of the enclosure 1 do not deviate from the principle and scope of the present invention and should all be included within the protection scope of the present invention.

[0051] It should also be noted that, in practical applications, those skilled in the art can install a temperature sensor inside the housing 1 and obtain the temperature Ti of the inner wall through the value of the temperature sensor, or they can install a thermometer inside the housing 1 and obtain the temperature Ti of the inner wall through the value of the thermometer, etc. Such adjustments and changes to the specific method of obtaining the temperature Ti of the inner wall do not deviate from the principle and scope of the present invention and should all be included within the protection scope of the present invention.

[0052] For example, such as Figure 1 As shown, a first temperature sensor 12 is installed inside the housing 1. The temperature T of the internal environment of the housing 1 is obtained by the value fed back by the first temperature sensor 12. A second temperature sensor 112 is installed on the inner wall 11 of the housing 1. The temperature Ti of the inner wall is obtained by the value fed back by the second temperature sensor 112.

[0053] It should be noted that, in practical applications, those skilled in the art can install a humidity sensor inside the housing 1 and obtain the humidity RH of the internal environment of the housing 1 through the value of the humidity sensor, or they can install a hygrometer inside the housing 1 and obtain the humidity RH of the internal environment of the housing 1 through the value of the hygrometer, etc. Such adjustments and changes to the specific method of obtaining the humidity of the internal environment of the housing 1 do not deviate from the principle and scope of the present invention and should all be included within the protection scope of the present invention.

[0054] Preferably, such as Figure 1 As shown, a humidity sensor 13 is installed inside the enclosure 1, and the humidity (RH) of the internal environment of the enclosure 1 is obtained by the value fed back by the humidity sensor 13.

[0055] It should be noted that in practical applications, the temperature and humidity of the internal environment of the box 1 are not limited to being obtained by setting the values ​​of the first temperature sensor 12 and humidity sensor 13 inside the box 1 as described above. For example, temperature and humidity sensors can also be set directly inside the box 1, and the internal ambient temperature T and internal ambient humidity RH can be obtained based on the values ​​fed back by the temperature and humidity sensors, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0056] It should also be noted that, in practical applications, those skilled in the art can obtain the dew point temperature Td corresponding to the internal ambient temperature T and internal ambient humidity RH by consulting the "Comparison Table of Ambient Temperature, Relative Humidity, and Dew Point Temperature", or by consulting the "Enthalpy-Humidity Chart of Humid Air", or by using the dew point temperature calculation formula, etc. Adjustments and changes to the specific methods of obtaining the dew point temperature Td do not deviate from the principles and scope of this invention and should all be included within the protection scope of this invention.

[0057] Preferably, the dew point temperature corresponding to the internal ambient temperature T and the internal ambient humidity RH is obtained by using the dew point temperature calculation formula.

[0058] The formula for calculating the dew point temperature is as follows:

[0059]

[0060] Where Td is the dew point temperature (in °C), T is the internal ambient temperature (in °C), RH is the internal ambient humidity (in %), a is a constant with a value of 17.27, and b is a constant with a value of 237.7 (in °C).

[0061] It should be noted that, in practical applications, those skilled in the art can set the number of the second temperature sensor 112 to one, or two, or even multiple, etc. Such adjustments and changes to the specific number of the second temperature sensor 112 do not deviate from the principles and scope of the present invention and should all be included within the protection scope of the present invention.

[0062] It should be noted that, in practical applications, those skilled in the art can directly compare the dew point temperature Td with the inner wall temperature Ti, or they can first calculate the difference between the dew point temperature Td and the inner wall temperature Ti, and then compare the difference with a preset value, or they can first calculate the ratio between the dew point temperature Td and the inner wall temperature Ti, and then compare the ratio with a preset value, and so on. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention, and should all be included within the protection scope of the present invention.

[0063] See next Figure 3 , Figure 3 This is a flowchart of an embodiment of the control method of the present invention.

[0064] Preferably, such as Figure 3 As shown, the specific steps of "selectively adjusting the heating element 111 to raise the temperature of the inner wall according to the dew point temperature Td and the inner wall temperature Ti" include:

[0065] S610: Calculate the difference Δ = Ti - Td;

[0066] S620: Compare the difference △ with the first preset value A1;

[0067] S630: Based on the comparison results, selectively adjust the heating element 111 to increase the temperature of the inner wall 11;

[0068] Where A1 > 0.

[0069] By using this setting, compared to directly comparing the dew point temperature Td with the inner wall temperature Ti and selectively adjusting the heating element 111 to raise the temperature of the inner wall 11 based on the comparison result, this method first calculates the difference between the dew point temperature Td and the inner wall temperature Ti, then compares this difference with a preset value, and selectively adjusts the heating element 111 to raise the temperature of the inner wall 11 based on the comparison result. This avoids misjudgments caused by detection errors in the internal ambient temperature, internal ambient humidity, and inner wall temperature, thereby improving the accuracy of adjusting the heating element 111.

[0070] It should be noted that in practical applications, it is not limited to setting A1 to be greater than 0, that is, starting to adjust the heating element 111 to raise the temperature of the inner wall 11 when the temperature of the inner wall 11 drops to close to the dew point temperature Td. For example, A1 can also be set to be equal to 0, that is, starting to adjust the heating element 111 to raise the temperature of the inner wall 11 when the temperature of the inner wall 11 drops to equal to the dew point temperature Td, etc. Such flexible adjustment and change does not deviate from the principle and scope of the present invention.

[0071] Preferably, such as Figure 3 As shown, the specific steps of "selectively adjusting the heating element 111 to raise the temperature of the inner wall 11 based on the comparison results" include:

[0072] S621: If △≥A1, then the heating element 111 is not adjusted.

[0073] With this setting, if △≥A1, it means that the temperature Ti of the inner wall 11 is much higher than the dew point temperature Td. At this time, condensation will not occur, so there is no need to adjust the heating element 111 to further increase the temperature Ti of the inner wall 11, thereby avoiding the temperature Ti of the inner wall 11 from rising too high and causing the cooling time to be too long.

[0074] Preferably, such as Figure 3 As shown, the specific steps of "selectively adjusting the heating element 111 to raise the temperature of the inner wall 11 based on the comparison results" include:

[0075] S622: If △ < A1, then adjust the heating element 111 to raise the temperature of the inner wall 11.

[0076] With this setting, the heating element 111 can be adjusted in time to raise the temperature of the inner wall 11 when the temperature of the inner wall 11 drops to near the dew point temperature, thereby preventing condensation from forming inside the chamber 1. Compared with adjusting the heating element 111 to raise the temperature of the inner wall 11 when the temperature of the inner wall 11 drops to equal the dew point temperature, this setting can prevent the temperature of the inner wall 11 from falling below the dew point temperature and causing condensation inside the chamber 1. This makes the adjustment of the heating element 111 more timely and the effect of preventing condensation from forming inside the chamber 1 better.

[0077] It should be noted that, in practical applications, those skilled in the art can determine the specific value of A1 based on experience or experimentation.

[0078] For example, A1 is set to 2°C.

[0079] It should be noted that, in practical applications, those skilled in the art can configure the heating element 111 as a resistance heating structure, or as an electromagnetic heating structure, etc. Such adjustments and changes to the specific structural form of the heating element 111 do not deviate from the principles and scope of the present invention and should all be included within the protection scope of the present invention.

[0080] Preferably, the heating element 111 is configured as a resistance heating structure.

[0081] With this configuration, compared to setting the heating element 111 as an electromagnetic heating structure, setting the heating element 111 as a resistance heating structure makes it easier to control the temperature of the inner wall 11, preventing the temperature of the inner wall 11 from rising too much due to excessive heating, thus avoiding excessively long heating time, and also reducing energy waste.

[0082] It should be noted that, in practical applications, those skilled in the art can raise the temperature of the inner wall 11 by adjusting the heating power of the heating element 111, or by adjusting the current of the heating element 111, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0083] Preferably, the specific steps of "adjusting the heating element 111 to raise the temperature of the inner wall 11" include:

[0084] Adjust the heating power of the heating element 111 to increase the temperature of the inner wall 11.

[0085] With this setup, the temperature of the inner wall 11 is increased by adjusting the power of the heating element 111, making the temperature adjustment of the inner wall 11 more direct and accurate, and making it easier to control the degree of temperature increase of the inner wall 11.

[0086] It should be noted that, in practical applications, those skilled in the art can first operate the heating element 111 at its lowest power, and when the difference Δ between the inner wall temperature Ti and the dew point temperature Td is lower than a preset value, gradually increase the heating power of the heating element 111, and when the difference Δ is higher than the preset value, gradually decrease the heating power of the heating element 111. Alternatively, the heating element 111 can first be operated at its highest power, and then the heating power of the heating element 111 can be gradually decreased according to a preset power. During the process of decreasing the heating power according to the preset power, the heating power of the heating element 111 can be continuously corrected according to the difference Δ, and so on. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0087] Preferably, after activating the heating element 111, the control method of the present invention further includes:

[0088] Adjust the heating power of heating element 111 to the maximum heating power;

[0089] Obtain the running time t of the heating component 111;

[0090] Obtain the preset heating power corresponding to the internal ambient temperature T and the running time t;

[0091] The heating power of the heating element 111 is reduced to the preset heating power.

[0092] With this setup, on the one hand, by first adjusting the heating power of the heating element 111 to its maximum power and then adjusting it to a preset power corresponding to the internal ambient temperature and the operating time of the heating element 111, compared to first adjusting the heating power of the heating element 111 to its minimum power and then gradually increasing the power, the temperature of the inner wall 11 can be raised more quickly to prevent the temperature of the inner wall from falling below the dew point temperature, thus better preventing condensation inside the chamber 1. On the other hand, by setting the preset heating power of the heating element 111 according to the internal ambient temperature and the operating time of the heating element, compared to setting the preset heating power of the heating element 111 only according to the internal ambient temperature or only according to the operating time of the heating element, it is possible to ensure that the temperature of the inner wall is always above the dew point temperature, while also avoiding excessively long cooling times for the biological incubator due to excessively large temperature increases caused by the heating element 111.

[0093] It should be noted that in practical applications, the preset heating power of the heating element 111 is not limited to being set based on the internal ambient temperature and the operating time of the heating element 111. For example, the preset heating power of the heating element 111 can be set based solely on the internal ambient temperature, or solely on the operating time of the heating element 111, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should all be included within the protection scope of the present invention. Of course, it is preferable to set the preset heating power of the heating element 111 based on the internal ambient temperature and the operating time of the heating element 111.

[0094] It should be noted that, in practical applications, those skilled in the art can compare the internal ambient temperature T with a preset temperature value, compare the operating time t of the heating element 111 with a preset operating time, and then adjust the power of the heating element 111 to a preset heating power corresponding to the internal ambient temperature T and the operating time t based on the comparison results. Alternatively, they can determine whether the internal ambient temperature T is within a preset temperature range, determine whether the operating time t of the heating element 111 is within a preset time range, and then adjust the power of the heating element 111 to a preset heating power corresponding to the preset temperature range and time range based on the determination results, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should all be included within the protection scope of the present invention.

[0095] See next Figure 4 , Figure 4 This is a schematic diagram showing the comparison between the heating power of the heating element of the present invention, the internal ambient temperature of the housing, and the operating time of the heating element.

[0096] Preferably, such as Figure 4 As shown, the specific steps for "obtaining the preset heating power corresponding to the internal ambient temperature T and running time t" include:

[0097] Determine whether the internal ambient temperature T is within the nth preset temperature range R. n Within;

[0098] Determine if the runtime t is within the nth preset time interval r. n Within;

[0099] Based on the judgment result, obtain the preset heating power P corresponding to the internal ambient temperature T and the running time t;

[0100] Where n is a positive integer.

[0101] This setting makes adjusting the heating power of the heating element 111 more convenient and precise compared to directly comparing the internal ambient temperature with the preset temperature value or directly comparing the running time with the preset running time. It also prevents misjudgments caused by a single measurement error from affecting the accuracy of the heating power adjustment.

[0102] For example, the preset heating power of the heating element 111 is set to n levels, namely P1, P2, P3, P4, P5, ... P n Among them, P1 has the highest power, and the internal ambient temperature T is set to n preset temperature ranges, namely R1, R2, R3, R4, R5, ... R n Among them, R1 has the highest temperature; the operating time t of the heating component 111 is set into n time intervals, namely r1, r2, r3, r4, r5, ... r n Among them, r1 has the shortest time.

[0103] If the internal ambient temperature T reaches the nth preset temperature range R n Meanwhile, the runtime t also reaches the nth preset time interval r. n Then, the preset heating power corresponding to the internal ambient temperature T and running time t is the nth level power P. n .

[0104] If the internal ambient temperature T reaches the nth preset temperature range R first n At this point, the runtime t is still within the (n-1)th preset time interval r. n-1 For example, if the internal ambient temperature T and running time t are both present, then the preset heating power corresponding to this time is the nth level power P. n .

[0105] If the internal ambient temperature T is still within the (n-1)th preset temperature range R n-1 Meanwhile, the runtime t first reaches the nth preset time interval r. n Then, the preset heating power corresponding to the internal ambient temperature T and running time t is the nth level power P. n .

[0106] For example, such as Figure 4 As shown, the preset heating power of the heating component 111 is set to 5 levels, such as 5 levels, namely P1, P2, P3, P4, and P5, where P1 > P2 > P3 > P4 > P5.

[0107] The internal ambient temperature T is set to 6 temperature values: T1, T2, T3, T4, T5, and T6. These 6 temperature values ​​form the following 5 preset temperature ranges:

[0108] R1: T1≥T>T2; R2: T2≥T>T3; R3: T3≥T>T4; R4: T4≥T>T5; R5: T5≥T>T6.

[0109] If T1≥T>T2, it means that the internal ambient temperature is within the first preset temperature range R1.

[0110] The operating time of the heating element 111 is set to 6 time values, namely t1, t2, t3, t4, t5, and t6. These 6 time values ​​form 5 preset temperature ranges as follows:

[0111] r1: t1≤t<t2; r2: t2≤t<t3; r3: t3≤t<t4; r4: t4≤t<t5; r5: t5≤t<t6.

[0112] If t1≤t<t2, it means that the running time t is within the first preset time interval r1.

[0113] The following examples illustrate specific implementations of the preset heating power of the heating element.

[0114] Scenario 1: If the internal ambient temperature T is within the first preset temperature range R1 and the running time of the heating component 111 is also within the first preset time range r1, then the heating power P of the heating component 111 will be adjusted to the first power level, i.e., P1.

[0115] Scenario 2: If the internal ambient temperature T is within the first preset temperature range R1 and the running time of the heating component 111 is within the second preset time range r2, then the heating power of the heating component 111 will be adjusted to the second power level, i.e., P2.

[0116] Scenario 3: If the internal ambient temperature T is within the second preset temperature range R2 and the running time of the heating component 111 is within the first preset time range r1, then the heating power of the heating component 111 will be adjusted to the second power level, i.e., P2.

[0117] It should be noted that in practical applications, during the operation of the heating element 111, the temperature Ti of the inner wall of the housing 1 and the dew point temperature Td are monitored simultaneously. If the temperature Ti of the inner wall is found to be close to the dew point temperature Td, the heating power of the heating element 111 is adjusted.

[0118] It should also be noted that, in practical applications, those skilled in the art can obtain the temperature Ti and dew point temperature Td of the inner wall at set intervals, or they can continuously monitor the temperature Ti and dew point temperature Td of the inner wall during the cooling process, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0119] Preferably, the temperature Ti and dew point temperature Td of the inner wall are acquired at set intervals.

[0120] For example, during the operation of the heating component 111, when it is necessary to reduce the heating power of the heating component 111 to a preset heating power corresponding to the internal ambient temperature T and the running time t, if the temperature Ti of the inner wall is detected to be close to the dew point temperature, the heating power will not be reduced to the preset heating power corresponding to the internal ambient temperature T and the running time t. The heating component 111 will continue to operate at the previous heating power until the temperature Ti of the inner wall is detected to be higher than the dew point temperature Td by a certain range. Then, the heating power of the heating component 111 will be reduced to the preset heating power corresponding to the internal ambient temperature T and the running time t.

[0121] When the heating element 111 is running at a preset heating power corresponding to the current internal ambient temperature T and running time t, if the temperature Ti of the inner wall is detected to be close to the dew point temperature, the heating power of the heating element 111 will be increased by one level until the temperature Ti of the inner wall is detected to be higher than the dew point temperature Td by a certain range. Then, the heating power of the heating element 111 will be reduced to the preset heating power corresponding to the internal ambient temperature T and running time t.

[0122] If the temperature Ti of the inner wall is not found to be close to the dew point temperature Td during the operation of the heating component 111, the heating component 111 will operate normally according to the preset heating power corresponding to the internal ambient temperature T and the running time t.

[0123] The following describes specific embodiments of the heating power adjustment of the present invention in detail, using the following scenarios as examples.

[0124] Scenario 1: When heating element 111 is running at power level 1, and the internal ambient temperature T is within the first preset temperature range R1, and the running time of heating element 111 is within the second preset time range r2, then the heating power of heating element 111 needs to be reduced to power level 2. However, if the temperature Ti of the inner wall is detected to be close to the dew point temperature Td, then the heating power of heating element 111 is not reduced to power level 2, and heating element 111 continues to run at power level 1. After heating element 111 has been running at power level 1 for a period of time, if the temperature Ti of the inner wall is detected to be higher than the dew point temperature Td by a certain range, and if the internal ambient temperature T is within the second preset temperature range R2, and the running time of heating element 111 is within the second preset time range r2, then the power of heating element 111 is adjusted to power level 2, i.e., P2.

[0125] Scenario 2: When the heating element 111 is running at the second power level, i.e., P2, and the temperature Ti of the inner wall is detected to be close to the dew point temperature Td, the heating power of the heating element 111 is increased by one level, i.e., the heating power of the heating element 111 is adjusted to the first power level, i.e., P1. After the heating element runs at the first power level for a period of time, if the temperature Ti of the inner wall is detected to be higher than the dew point temperature Td by a certain range, and if the internal environment T is within the second preset temperature range R3, and the running time of the heating element 111 is within the third preset time range r3, then the power of the heating element 111 is adjusted to the third power level, i.e., P3.

[0126] Scenario 3: When the heating element 111 is operating at the second power level, and the internal ambient temperature T is within the second preset temperature range R2, and the operating time of the heating element 111 is within the third preset time range r3, then the heating power of the heating element 111 needs to be reduced to the third power level. If the temperature Ti of the inner wall is not detected to be close to the dew point temperature Td, then the heating power of the heating element 111 is directly reduced to the third power level.

[0127] It should be noted that, in practical applications, those skilled in the art can set the temperature Ti of the inner wall to be close to the dew point temperature Td. When the difference Δ between the temperature Ti of the inner wall and the dew point temperature Td is less than the third preset value A3, it is determined that the temperature of the inner wall is close to the dew point temperature. This will not be elaborated further here.

[0128] It should also be noted that, in practical applications, those skilled in the art can set the temperature Ti of the inner wall to be higher than the dew point temperature Td by a certain range. When the difference Δ between the temperature Ti of the inner wall and the dew point temperature Td is greater than the fourth preset value A4, it is determined that the temperature Ti of the inner wall is higher than the dew point temperature Td by a certain range.

[0129] It should also be noted that, in practical applications, those skilled in the art can determine the specific values ​​of the third preset value A3 and the fourth preset value A4 based on experiments or experience.

[0130] It should be noted that, in practical applications, those skilled in the art can set one heating element 111 on the inner wall 11 of the housing 1, or they can set the number of heating elements 111 to be multiple, with multiple heating elements 111 respectively set on the corresponding inner wall 11, etc. Such adjustments and changes to the specific number of heating elements 111 do not deviate from the principle and scope of the present invention, and should all be included within the protection scope of the present invention.

[0131] Preferably, the number of heating elements 111 is set to multiple, and the multiple heating elements 111 are respectively disposed on the corresponding inner wall 11.

[0132] It should be noted that, in practical applications, those skilled in the art can set the multiple heating components 111 to be adjusted independently, or they can set the multiple heating components 111 to be adjusted together, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0133] Preferably, the multiple heating elements 111 are each set to be independently adjustable.

[0134] With this configuration, compared to setting multiple heating elements 111 to be adjusted together, setting multiple heating elements 111 to be adjusted independently allows for more precise adjustment of the heating elements 111 based on the difference between the temperature and dew point temperature on each inner wall 11 to raise the temperature on the corresponding inner wall 11, thereby better preventing condensation on the inner wall 11.

[0135] For example, there are 6 heating elements 111, which are located on the six inner walls 11 of the housing 1. After the heating power of each heating element 111 is determined, the heating time of the corresponding heating element 111 can be adaptively adjusted according to the area of ​​each surface during each heating cycle of the heating element 111. If the area of ​​an inner wall 11 is large, the heating time of the corresponding heating element 111 is extended; if the area of ​​an inner wall 11 is small, the heating time of the corresponding heating element 111 is shortened.

[0136] Continue reading Figure 5 , Figure 5 This is a fitting curve of the temperature of the inner wall and the dew point temperature at the same moment during the cooling process of the biological culture device of the present invention inside the chamber.

[0137] When the internal ambient temperature of the biological culture device reaches 90℃, cooling begins, and the heating element 111 is activated simultaneously. The ambient temperature T inside the chamber 1, the ambient humidity RH inside the chamber 1, the temperature Ti of the inner wall, and the running time t of the heating element 111 are obtained.

[0138] Based on the obtained ambient temperature T and ambient humidity RH inside the enclosure 1, the dew point temperature Td corresponding to the ambient temperature T and ambient humidity RH inside the enclosure 1 is calculated.

[0139] Throughout the cooling process, according to Figure 4 The curve shown is used to adjust the heating power P of the heating element, and the heating power is corrected when the temperature Ti of the inner wall is detected to be close to the dew point temperature Td. At the same time, the temperature Ti of the inner wall is acquired once at a set time interval of j.

[0140] The dew point temperature Td corresponding to the inner wall temperature Ti is obtained at intervals of j set time.

[0141] Then, using the inner wall temperature Ti and dew point temperature Td as the vertical axis and j set time intervals as the horizontal axis, a curve fitting is performed to obtain the result. Figure 5 The curve shown in the figure.

[0142] like Figure 5 As shown, at any given time, the temperature Ti of the inner wall is always higher than the dew point temperature Td at that moment, so no condensation will occur on the inner wall 11.

[0143] See next Figure 6 , Figure 6 This is a fitting curve of the temperature of the inner wall and the internal environment temperature at the same moment during the cooling process of the biological culture device of the present invention.

[0144] At intervals of j set time intervals, the temperature Ti of the inner wall of the box 1 is obtained once, and the internal ambient temperature T is also obtained.

[0145] By performing curve fitting with the inner wall temperature Ti and the internal ambient temperature T as the vertical axis and j predetermined time intervals as the horizontal axis, we obtain... Figure 6 The curve shown in the figure.

[0146] like Figure 6 As shown, during the entire cooling process, the temperature Ti of the inner wall does not deviate too much from the internal ambient temperature T. Therefore, the heating component 111 heating the inner wall 11 of the box 1 will not cause the internal environment of the box 1 to cool down for too long.

[0147] Therefore, when cooling the internal environment of chamber 1, according to Figure 4 The curve shown in the figure is used to adjust the heating power of the heating element 111. At the same time, when the temperature Ti of the inner wall is detected to be close to the dew point temperature Td, the heating power is corrected to increase the temperature Ti of the inner wall of the box 1. On the one hand, it can avoid condensation on the inner wall 11 of the box 1. On the other hand, it can avoid the heating power of the heating element 111 being too high or the temperature of the inner wall 11 of the box 1 rising too much, resulting in an excessively long cooling time.

[0148] Preferably, an auxiliary heating component (not shown in the figure) is also provided on the inner wall 11. The control method of the present invention further includes the following steps:

[0149] Compare the difference △ with the second preset value A2;

[0150] Based on the comparison results, auxiliary heating components are selectively activated.

[0151] With this setup, when the heating element 111 malfunctions and the temperature Ti of the inner wall of the housing 1 is about to drop below the dew point temperature, the auxiliary heating element can be activated. The auxiliary heating element will raise the temperature of the inner wall 11, thereby preventing condensation from forming on the inner wall 11 due to the temperature of the inner wall 11 being below the dew point temperature.

[0152] It should be noted that, in practical applications, those skilled in the art can set the auxiliary heating component to be activated when the difference Δ < A2 occurs, or it can be set to be activated when the difference Δ < A2 occurs and the duration of the difference Δ < A2 exceeds a preset time, etc. Such flexible adjustments and changes do not deviate from the principles and scope of the present invention and should be included within the protection scope of the present invention.

[0153] Preferably, the specific steps of "selectively activating the auxiliary heating component based on the comparison results" include:

[0154] When the difference Δ < A2 and the duration of the difference Δ < A2 exceeds the preset time, the auxiliary heating component is activated;

[0155] Where A2 < A1.

[0156] With this setting, compared to the case where the auxiliary heating component is activated when the difference Δ < A2 occurs, the auxiliary heating component is activated when the difference Δ < A2 occurs and the duration of the difference Δ < A2 exceeds a preset time. This avoids misjudgment caused by temperature detection errors at a certain moment, thereby accurately determining whether the heating component 111 has malfunctioned. Consequently, when the heating component 111 malfunctions, the auxiliary heating component can be activated in a timely manner to prevent condensation. When the heating component 111 is not malfunctioning, the auxiliary heating component is not activated to avoid excessively long cooling time caused by the simultaneous operation of the heating component 111 and the auxiliary heating component.

[0157] It should be noted that, in practical applications, those skilled in the art can determine the specific values ​​of A2 and the preset time based on experience or experimentation.

[0158] For example, A2 is set to 1°C and the preset time is set to 5 seconds.

[0159] It should be noted that the biological culture apparatus of the present invention also includes a controller (not shown in the figure), which is configured to execute the control methods described above.

[0160] It should also be noted that, in practical applications, the controller is configured to communicate with the first temperature sensor 12, the second temperature sensor 112, and the humidity sensor 13 respectively, so as to realize intelligent data acquisition of the internal ambient temperature T, the inner wall temperature Ti, and the internal ambient humidity RH. The controller is also configured to communicate with the heating element 111 to facilitate intelligent adjustment of the heating element 111.

[0161] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A control method for a biological culture device, characterized in that, The biological culture device includes a chamber and a heating element disposed on the inner wall of the chamber, and the control method includes: The heating element is activated when the internal environment of the enclosure is cooled. Obtain the internal ambient temperature T of the enclosure; Obtain the internal humidity (RH) of the enclosure; Obtain the dew point temperature Td corresponding to the internal ambient temperature T and the internal ambient humidity RH; Obtain the temperature Ti of the inner wall; Calculate the difference Δ = Ti - Td; The difference Δ is compared with the first preset value A1; Based on the comparison results, the heating element is selectively adjusted to increase the temperature of the inner wall; If Δ < A1, then adjust the heating element to increase the temperature of the inner wall; Where A1 > 0; The specific steps for "adjusting the heating element to raise the temperature of the inner wall" include: Adjust the heating power of the heating element to increase the temperature of the inner wall.

2. The control method according to claim 1, characterized in that, After the heating component is activated, the control method further includes: Adjust the heating power of the heating element to the maximum heating power; Obtain the running time t of the heating component; Obtain the preset heating power corresponding to the internal ambient temperature T and the running time t; The heating power of the heating element is reduced to the preset heating power.

3. The control method according to claim 1, characterized in that, The number of heating elements is multiple and they are respectively arranged on the corresponding inner wall, and each of the multiple heating elements can be adjusted independently.

4. The control method according to claim 1, characterized in that, The inner wall is also provided with an auxiliary heating component, and the control method further includes: Compare the difference Δ with the second preset value A2; Based on the comparison results, the auxiliary heating component is selectively activated.

5. The control method according to claim 4, characterized in that, The specific steps of "selectively activating the auxiliary heating component based on the comparison results" include: When the difference Δ < A2 and the duration of the difference Δ < A2 exceeds a preset time, the auxiliary heating component is activated; Where A2 < A1.

6. The control method according to claim 1, characterized in that, The specific steps of "selectively adjusting the heating element to raise the temperature of the inner wall" include: If △≥A1, then the heating element is not adjusted.

7. A biological culture device, characterized in that, Includes a controller configured to perform the control method according to any one of claims 1 to 6.

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