CN113406984A - Refrigeration constant-temperature constant-humidity control method and system - Google Patents

Refrigeration constant-temperature constant-humidity control method and system Download PDF

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CN113406984A
CN113406984A CN202110618421.0A CN202110618421A CN113406984A CN 113406984 A CN113406984 A CN 113406984A CN 202110618421 A CN202110618421 A CN 202110618421A CN 113406984 A CN113406984 A CN 113406984A
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temperature
module
value
humidity
valve body
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CN113406984B (en
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尹光洙
刘亚东
张云
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Stukai Instrument Equipment Shanghai Co ltd
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    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means

Abstract

The invention discloses a refrigeration constant temperature and humidity control method and a system, which comprises an experimental data storage module, an automatic temperature value setting module, an illumination value acquisition module, a machine operation condition judgment module, an action condition setting module, an action condition judgment module, a valve body control module, an operation parameter acquisition module, a temperature change detection module, a humidity change detection module and an incubator operation monitoring module, and has the beneficial effects that: according to the temperature condition set by a user and the operation parameters in the box body, the action of the control valve body is automatically adjusted, a small refrigerating unit is adopted, the control of a temperature and humidity interval in a large range is realized, the effect of reducing the energy efficiency is achieved, the control method does not need to defrost periodically, the problem of large humidity fluctuation is avoided, the operation environment of the incubator is monitored in real time according to the collected parameters, a real-time monitoring report is generated, and a worker can know the operation condition of the incubator according to the monitoring report.

Description

Refrigeration constant-temperature constant-humidity control method and system
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigeration constant-temperature constant-humidity control method and system.
Background
In the experimental research of biological science and the production process of biotechnological products, necessary biochemical reactions, hybridization reactions and organism culture are often required to be carried out, and the biotechnological products are produced by utilizing the cultured organisms, and the biochemical reactions, the hybridization reactions and the organism culture need to provide proper temperature and necessary gas, so that the prior art designs an incubator corresponding to the prior art, the incubator refers to a box body device with controllable temperature, is mainly used for culturing microorganisms, plants and animal cells, is provided with a refrigeration and heating bidirectional temperature regulation system, and is widely applied to tests such as constant-temperature culture, constant-temperature reaction and the like.
Present incubator product on the market, especially constant temperature and humidity class incubator, refrigerating system adopt the constant frequency compressor, and the accuse temperature adopts constant frequency compressor work and heating device working method, but this refrigerating system has following defect:
1. errors occur in the culture process due to improper placement positions in the placement process of the incubator, namely, the temperature change at the placement positions is large, so that the temperature control in the incubator body is influenced;
2. in order to ensure the stable humidity, the compressor needs to be normally opened, the corresponding heating and humidifying power is increased, and the power consumption is increased;
3. the temperature and humidity fluctuation is large due to the fact that defrosting is needed regularly when the low-temperature area operates for a long time, and the requirement for long-term stable operation cannot be met;
4. and an effective monitoring means aiming at the operation process of the incubator is lacked.
Based on the above problems, it is urgently needed to provide a refrigeration constant temperature and humidity control method and system, which can judge whether the current placement position of the incubator meets the standard or not by collecting and analyzing the illuminance value in the surrounding environment of the incubator, and use the illuminance value as the judgment condition for starting the machine, thereby avoiding the problems of increased heating and humidification power and increased power consumption caused by the temperature control in the incubator body due to the large temperature change at the placement position, automatically adjusting the action of the control valve body according to the temperature condition set by the user and the operating parameters in the incubator body, realizing the control of the temperature and humidity interval in a large range by using a small refrigeration unit to achieve the effect of reducing the energy efficiency, and the control method does not need to regularly defrost, thereby avoiding the problem of large humidity fluctuation, and further monitoring the operating environment of the incubator in real time according to the collected parameters, and generating a real-time monitoring report so that a worker can know the operation condition of the incubator according to the monitoring report.
Disclosure of Invention
The present invention is directed to a method and a system for controlling refrigeration, constant temperature and humidity, so as to solve the problems mentioned in the background art.
In order to solve the technical problems, the invention provides the following technical scheme:
a refrigeration constant temperature and humidity control system comprises an experiment data storage module, a temperature value automatic setting module, an illumination value acquisition module, a machine operation condition judgment module, an action condition setting module, an action condition judgment module, a valve body control module, an operation parameter acquisition module, a temperature change detection module, a humidity change detection module and an incubator operation monitoring module, wherein the experiment data storage module is used for storing various data generated in the experiment process, the temperature value automatic setting module is used for setting a temperature value required in the experiment process according to the data generated in the historical experiment process stored in the experiment data storage module, the illumination value acquisition module is used for acquiring a real-time illumination value in the environment around an incubator, the machine operation condition judgment module is used for judging whether the current condition of machine operation is met according to various parameters before the machine operation, the action condition setting module is used for setting the action conditions of the control valve body, the operation parameter acquisition module is used for acquiring the parameters of the operation state or the non-operation state of the incubator, the action condition judging module is used for judging the current action condition according to the collected parameter value, the valve body control module is used for controlling the action of the valve body according to the judgment result of the action condition judgment module, the temperature change detection module is used for analyzing the current temperature change according to the acquired parameter values, the humidity change detection module is used for analyzing the current humidity change according to the collected parameter values, the incubator operation monitoring module is used for monitoring the current operation condition of the incubator according to the temperature change analysis result and the humidity change analysis result, and generating a corresponding monitoring report according to different analysis results, namely specific temperature and humidity change conditions.
Further, the machine operation condition judgment module is connected with the temperature value automatic setting module and the illumination value acquisition module, the temperature value automatic setting module is connected with the experiment data storage module, the temperature value automatic setting module acquires the subject of the experiment and acquires a temperature value corresponding to the subject of the experiment through the experiment data storage module, the temperature value automatic setting module sets the set temperature of the experiment according to the acquired corresponding temperature value, the machine operation condition judgment module acquires the current set temperature through the temperature value automatic setting module, and the illumination value acquisition module continuously acquires the illumination value lx in the surrounding environment of the culture box body1、lx2、lx3、…、lxi-1、lxiThe time intervals between the acquisition time nodes for acquiring the illumination values each time are equal, and the machine operation condition judgment module acquires the acquired illumination value data and the corresponding acquisition time node t through the illumination value acquisition module1、t2、t3、…、ti-1、tiAnd analyzing the current illumination value change according to the acquisition time node and the illumination value corresponding to the acquisition time node, namely calculating
Figure BDA0003098660660000021
The value of (a) is,
the machine operation condition judgment module further judges whether the operation condition of the machine is met according to the difference value delta T between the set temperature and the temperature in the box body and the illumination value change analysis result,
when the difference value delta T between the set temperature and the temperature in the box body is larger than or equal to a first threshold value
Figure BDA0003098660660000031
If the value of the temperature difference is larger than or equal to the illumination variation threshold value, stopping the starting signal of the compressor, and operating the heating device to control the temperature;
if the difference value delta T between the set temperature and the temperature in the box body is smaller than a first threshold value
Figure BDA0003098660660000032
Is less than the illumination change threshold, the compressor is started,
the using environment of the equipment is detected before the equipment is used, the environment temperature, the placing position and the temperature change condition of the placing position of the equipment are required to meet certain requirements, the placing position of the current incubator is judged whether to have large temperature difference within a certain time period or not by collecting the change of the illumination value in the surrounding environment, and therefore, the experiment is influenced, therefore, the placing environment of the incubator is monitored in advance, when the monitoring result meets the culture condition, the temperature difference is combined to serve as the starting condition of the machine, the temperature in the box body is obtained before the equipment is operated, the temperature and the position of the environment where the current equipment is located are reflected from the side surface by the temperature value in the box body, whether the current environment meets the operation requirement of the equipment or not is judged according to the temperature detection result, if yes, the current equipment is started, on the contrary, the starting signal of the equipment needs to be stopped, the temperature needs to be controlled until the temperature required by the operation of the equipment is met, the loss of the equipment can be reduced, the service life of the equipment is prolonged, the animal and plant cell culture is a relatively long process, the change of the temperature difference needs to be avoided in the process, so that the requirement on the placing environment of the incubator is met, the worker judges whether the current placing environment meets the culture condition of the incubator or not by collecting illumination values in the surrounding environment in real time in the process of moving the incubator, and the current placing environment is used as the judgment condition of starting the machine or not, if the machine cannot be started, the situation that the current placing environment is not suitable for cell culture is conversely explained, and if the machine cannot be started, the situation that the current placing environment is not suitable for cell culture is also explained
Figure BDA0003098660660000033
The value of (A) is greater than or equal to the illumination variation threshold value, indicating lxiAnd lx1The difference between them is large, such as going from indoor to outdoor or going to the window side, and is irradiated by sunlight, so that these positions have large temperature difference in day and night due to the light irradiation, and therefore it is necessary to avoid these positions,the placing environment of the incubator is judged in advance to avoid that the failure of cell culture caused by unsuitable environment is found when the incubator is half cultured, and the incubator is not suitable to be moved in the operation process.
Further, the action condition judging module is connected with the action condition setting module, the operation parameter collecting module and the temperature value setting module, the action condition setting module presets action conditions of the control valve body, the action condition judging module judges the action required to be carried out on the current valve body according to the preset action conditions of the control valve body and real-time parameters collected by the operation parameter collecting module and the action conditions and the real-time parameters, the judgment result is transmitted to the valve body control module, the action of the corresponding valve body is controlled by the valve body control module, in the actual operation process of the machine, in order to ensure the stable humidity, the compressor needs to be normally opened, however, the power of corresponding heating and humidifying is increased, so that the power consumption is increased, the defrosting is required periodically during the long-term low-temperature region operation, otherwise, the temperature and humidity fluctuation is large, the requirement of long-term stable operation of equipment cannot be met, but the method provided by the invention judges which step needs to be carried out on the current valve body by acquiring the operation parameters and according to the operation parameters and the preset action conditions, so that the corresponding valve body action is controlled, and the temperature and humidity interval control in a larger range is realized by adopting a smaller refrigerating unit, thereby reducing the energy efficiency.
Further, the operating condition determining module obtains the set temperature T through the temperature value setting modulesAnd obtaining the current temperature T in the box body through the operation parameter acquisition modulexThe action condition judging module judges the action condition according to the set temperature TsTemperature T in the tank bodyxCalculating a difference value delta T between the two, and if the difference value delta T is smaller than a first threshold value and larger than or equal to a second threshold value, controlling the corresponding valve body to be opened through the valve body control module, wherein the valve body comprises a normally-closed valve SV1 and a normally-closed valve SV 2;
if the difference value delta T is smaller than a second threshold value, the corresponding valve body is controlled to be normally opened through the valve body control module, the valve body comprises a normally closed valve SV1 and a normally closed valve SV2, and the action of the corresponding valve body is controlled according to a judgment result, so that the effect of reducing the energy efficiency can be achieved.
Further, the temperature change detection module is connected with the operation parameter acquisition module, the incubator operation monitoring module and the temperature value automatic setting module, and the temperature change detection module obtains the temperature value required in the experiment process through the temperature value automatic setting module, namely, the set temperature TsThe operation parameter acquisition module acquires the operation parameters of the incubator in real time in the working process of the incubator, the temperature change detection module analyzes the temperature change condition according to the operation parameters acquired in real time, the temperature change detection module acquires a plurality of temperature values within a certain time period T through the operation parameter acquisition module, and the temperature values acquired within the certain time period are T1、T2、T3、…、Ti-1、TiThe time intervals between every two acquisition moments are equal,
if T1≥T2≥T3≥…≥Ti-1≥Ti≥TsThen calculate Ti-1And TiDifference between them, i.e. calculating T2-T1、T3-T2、T4-T3、...、Ti-1-Ti-2、Ti-Ti-1The temperature change detection module further calculates a temperature change rate according to the calculated difference
Figure BDA0003098660660000041
The temperature change detection module further analyzes the temperature change condition in the certain time period t according to the calculated temperature change rate, namely the average temperature change rate in the certain time period t when the temperature change condition is detected
Figure BDA0003098660660000042
When the value is more than or equal to the first preset value, the incubator operation monitoring module generates corresponding monitoring according to the current temperature change conditionThe report, the content of the monitoring report includes the temperature change rate between adjacent collection time, the average temperature change rate within a certain period of time and the time required for reaching the set temperature, in the operation process of the incubator, the cell culture in the incubator is in progress, no matter animal cell or plant cell culture, the temperature has strict requirements, therefore, the set temperature of the cell culture needs to be reached within a short time, so that the experiment can be better ensured, in the cooling process of the equipment, the performance of the equipment can be caused to be in problem due to the loss and maintenance of the equipment, the temperature control time of the equipment is monitored, the time period is divided, the temperature change value within a certain period of time is collected, the temperature change condition is analyzed according to the temperature change value, and the last temperature value is collected within the time period, if the temperature value does not reach the set temperature, judging the time when the equipment reaches the set temperature according to the previously collected temperature value, firstly calculating the average temperature change rate according to the previously collected temperature value and the collection time, further calculating the difference value between the last temperature value and the set temperature value, predicting the time required by the current equipment to reach the set temperature according to the temperature value difference value and the average temperature change rate, and judging whether the current equipment runs abnormally or not according to the time;
if T1≥T2≥T3≥…≥Ti-1≤Ti≥TsThe monitoring module generates a corresponding monitoring report according to the current temperature change condition, the content of the monitoring report comprises temperature values at different acquisition moments, and in the process of controlling the temperature to fall, if no problem occurs, the temperature value is in a stable falling process, but if the temperature starts to rise when falling to a certain value, the operation of the current equipment is abnormal, so that the monitoring report is printed, and a worker can know the problem existing in the operation of the current equipment according to the monitoring report, so that the problem can be solved in a targeted manner, and the equipment can run normally in time.
Furthermore, the operation parameter acquisition module is connected with the humidity change detection module,
the humidity change detection module acquires a plurality of humidity values in a certain time period t through the operation parameter acquisition module, wherein the humidity values acquired in the certain time period t are
Figure BDA0003098660660000051
The time intervals between every two acquisition moments are equal, and the humidity change detection module further acquires the target humidity
Figure BDA0003098660660000052
And obtaining the temperature value T at the same acquisition time through a temperature change detection module1、T2、T3、…、Ti-1、Ti，
If T1≥T2≥T3≥…≥Ti-1≥Ti≥TsAnd is
Figure BDA0003098660660000053
Wherein the content of the first and second substances,
Figure BDA0003098660660000054
the difference value between the target humidity and the target humidity is less than a preset value
Figure BDA0003098660660000055
Figure BDA0003098660660000056
When in use
Figure BDA0003098660660000057
When the value of (a) is greater than a second preset value, the incubator operation monitoring module generates a humidity anomaly monitoring report, wherein tdFor the time difference threshold, during the operation of the incubator, it means that the cell culture in the incubator is in progress, and not only the temperature but also the humidity are strictly required in both the animal cell culture and the plant cell culture, and thereforeThe set temperature and the target humidity of cell culture need to be reached in a short time, so that the experiment can be better ensured to be carried out, the temperature and the humidity are two factors which influence each other, and the temperature and the humidity have certain relation, so that the temperature and the humidity reach the set temperature and the target humidity in a short time interval in the temperature and humidity control process of the equipment, so that the mutual influence between the temperature and the humidity can be reduced, but in the temperature and humidity control process of the equipment, the performance of the equipment can be caused to be in problem due to the loss and maintenance problems of the equipment, the temperature control time of the equipment is monitored, the time period is divided, the temperature change value in a certain time period is collected, the temperature change condition is analyzed according to the temperature change value, the last temperature value collected in the time period is according to the temperature value collected before if the set temperature is not reached, judging the time when the equipment reaches the set temperature, firstly calculating the average temperature change rate according to the previously acquired temperature value and the acquisition time, then further calculating the difference value between the last temperature value and the set temperature value, predicting the time required by the current equipment to reach the set temperature according to the temperature value difference value and the average temperature change rate, similarly monitoring the humidity control time of the equipment, acquiring operation data according to the same principle, calculating the average humidity change rate, calculating the humidity difference value between the last humidity value and the target humidity on the premise that the last humidity value acquired in the time period still does not reach the target humidity, predicting the time required by the current equipment to reach the target humidity according to the humidity difference value and the average humidity change rate, judging the difference value between the times obtained by two calculations, namely judging the time interval between time nodes reaching constant temperature and constant humidity, reducing the effect between temperature and humidity.
Further, a refrigeration constant temperature and humidity control method comprises the following steps:
step S1: detecting the temperature in the incubator body of the incubator before the machine operates and the set temperature, and judging whether the machine operates according to the difference between the temperature in the incubator body and the set temperature;
step S2: setting the action condition of the control valve body;
step S3: collecting operation parameters of a culture box body after the machine is started;
step S4: adjusting the action of the control valve body according to the parameters of the real-time sensor in the incubator body;
step S5: and monitoring the operation of the incubator according to the temperature and humidity change after the valve body acts, and generating a corresponding monitoring report.
Further, in step S1, a difference Δ T between a set temperature before the operation of the compressor and a temperature inside the box is determined, and if the difference Δ T between the set temperature and the temperature inside the box is greater than or equal to a first threshold, the start signal of the compressor is terminated, and the heating device operates to control the temperature;
and if the difference value delta T between the set temperature and the temperature in the box body is smaller than a first threshold value, starting the compressor, and sequentially executing the steps S2, S3, S4 and S5.
Further, the conditions for controlling the valve body operation in step S2 include:
the first condition is as follows: if the difference value delta T between the set temperature and the temperature in the box body is smaller than a first threshold value and larger than or equal to a second threshold value, controlling the corresponding valve body to be opened, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2;
and a second condition: and if the difference value delta T between the set temperature and the temperature in the box body is smaller than a second threshold value, controlling the corresponding valve body to be normally opened, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2.
Further, the step S5 further includes:
obtaining the temperature value needed in the experiment process, namely the set temperature TsAnd collecting working operation parameters of the incubator in real time in the working process of the incubator, further analyzing the temperature change condition according to the working operation parameters collected in real time, and obtaining a plurality of temperature values within a certain time period T, wherein the temperature values collected within the certain time period are T1、T2、T3、…、Ti-1、TiThe time intervals between every acquisition time are equal，
If T1≥T2≥T3≥…≥Ti-1≥Ti≥TsThen calculate Ti-1And TiDifference between them, i.e. calculating T2-T1、T3-T2、T4-T3、...、Ti-1-Ti-2、Ti-Ti-1Further calculating a temperature change rate based on the calculated difference
Figure BDA0003098660660000071
Further analyzing the temperature change condition in the certain time period t according to the calculated temperature change rate, namely the average temperature change rate in the certain time period t,
when in use
Figure BDA0003098660660000072
When the value of the current temperature is greater than or equal to a first preset value, generating a corresponding monitoring report according to the current temperature change condition, wherein the content of the monitoring report comprises the temperature change rate between adjacent acquisition moments, the average temperature change rate in the certain time period and the time required for reaching the set temperature;
if T1≥T2≥T3≥…≥Ti-1≤Ti≥TsNamely, in the cooling process, when the temperature is reduced to a certain value, the temperature rises again, and then a corresponding monitoring report is generated according to the current temperature change condition, wherein the content of the monitoring report comprises temperature values at different acquisition moments;
obtaining a plurality of humidity values within a certain time period t, wherein the collected humidity values are
Figure BDA0003098660660000073
The time intervals between every two acquisition moments are equal, and the target humidity is further acquired
Figure BDA0003098660660000074
Temperature value T at the same acquisition time1、T2、T3、…、Ti-1、TiIf T is1≥T2≥T3≥…≥Ti-1≥Ti≥TsAnd is
Figure BDA0003098660660000075
Wherein the content of the first and second substances,
Figure BDA0003098660660000076
the difference value between the target humidity and the target humidity is less than a preset value
Figure BDA0003098660660000077
Figure BDA0003098660660000078
When in use
Figure BDA0003098660660000079
When the value of (a) is greater than a second preset value, a humidity anomaly monitoring report is generated, wherein tdIs a time difference threshold.
Compared with the prior art, the invention has the following beneficial effects: the invention judges whether the current placing position of the incubator meets the standard or not by collecting and analyzing the illumination value in the surrounding environment of the incubator body, and uses the illumination value as the judgment condition for starting the machine, thereby avoiding the temperature control in the box body from being influenced by larger temperature change at the placing position, causing the heating and humidifying power to be increased and the power consumption to be increased, the action of the control valve body is automatically adjusted according to the temperature condition set by the user and the operation parameters in the box body, the control of a temperature and humidity interval in a larger range is realized by adopting a smaller refrigerating unit, so as to achieve the effect of reducing energy efficiency, and the control method does not need to defrost periodically, thereby avoiding the problem of large humidity fluctuation, and furthermore, the operating environment of the incubator is monitored in real time according to the acquired parameters to generate a real-time monitoring report, so that a worker can know the operating condition of the incubator according to the monitoring report.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a refrigeration thermostatic and humidistatic control system of the present invention;
FIG. 2 is a schematic diagram of the steps of a refrigeration constant temperature and humidity control method according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides the following technical solutions:
a refrigeration constant temperature and humidity control system comprises an experimental data storage module, an automatic temperature value setting module, an illumination value acquisition module, a machine operation condition judgment module, an action condition setting module, an action condition judgment module, a valve body control module, an operation parameter acquisition module, a temperature change detection module, a humidity change detection module and an incubator operation monitoring module,
the experimental data storage module is used for storing various data generated in the experimental process, the automatic temperature value setting module is used for setting a temperature value required in the experimental process according to the data generated in the historical experimental process stored in the experimental data storage module, the illumination value acquisition module is used for acquiring a real-time illumination value in the environment around the incubator, the machine operation condition judgment module is used for judging whether the current operation condition of the machine is met according to various parameters before the machine operates, the action condition setting module is used for setting the action condition of the control valve body, the operation parameter acquisition module is used for acquiring the parameters of the operation state or the non-operation state of the incubator, the action condition judgment module is used for judging the current action condition according to the acquired parameter values, and the valve body control module is used for controlling the action of the valve body according to the judgment result of the action condition judgment module, the incubator operation monitoring module is used for monitoring the operation condition of the current incubator according to the temperature change analysis result and the humidity change analysis result, and generating a corresponding monitoring report according to different analysis results, namely specific temperature and humidity change conditions.
Further, the machine running condition judgment module is connected with the temperature value automatic setting module and the illuminance value acquisition module, the temperature value automatic setting module is connected with the experiment data storage module, the temperature value automatic setting module acquires the experiment theme, and acquires the temperature value corresponding to the experiment theme through the experiment data storage module, the temperature value automatic setting module sets the setting temperature of the experiment according to the acquired corresponding temperature value, the machine running condition judgment module acquires the current setting temperature through the temperature value automatic setting module, and the illuminance value acquisition module continuously acquires the illuminance value lx in the surrounding environment of the culture box body1、lx2、lx3、…、lxi-1、lxiThe time intervals between the acquisition time nodes for acquiring the illumination values each time are equal, and the machine operation condition judgment module acquires the acquired illumination value data and the corresponding acquisition time node t through the illumination value acquisition module1、t2、t3、…、ti-1、tiAnd analyzing the current illumination value change according to the acquisition time node and the illumination value corresponding to the acquisition time node, namely calculating
Figure BDA0003098660660000091
The value of (a) is,
the machine operation condition judgment module further judges whether the operation condition of the machine is met according to the difference value delta T between the set temperature and the temperature in the box body and the illumination value change analysis result,
when the temperature is set and the box body is usedThe difference delta T of the internal temperature is more than or equal to 10 DEG C
Figure BDA0003098660660000092
If the value of the temperature difference is larger than or equal to the illumination variation threshold value, stopping the starting signal of the compressor, and operating the heating device to control the temperature;
if the difference value delta T between the set temperature and the temperature in the box body<At 10 ℃ and
Figure BDA0003098660660000093
if the value of (d) is less than the illumination variation threshold, the compressor is started.
The action condition judging module is connected with the action condition setting module, the operation parameter collecting module and the temperature value setting module, the action condition setting module presets action conditions of the control valve body, the action condition judging module judges the action required to be carried out by the current valve body according to the preset action conditions of the control valve body and real-time parameters collected by the operation parameter collecting module, the judging result is transmitted to the valve body control module, and the action of the corresponding valve body is controlled by the valve body control module.
The action condition judgment module obtains the set temperature T through the temperature value setting modulesAnd obtaining the current temperature T in the box body through the operation parameter acquisition modulexThe action condition judging module judges the action condition according to the set temperature TsTemperature T in the tank bodyxThe difference between the two is calculated as deltat,
if delta T is more than or equal to minus 3 ℃ and less than 10 ℃, controlling the corresponding valve body to open through a valve body control module, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2;
and if delta T < -3 ℃, controlling the corresponding valve body to be normally opened through the valve body control module, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2.
The temperature change detection module is connected with the operation parameter acquisition module, the incubator operation monitoring module and the temperature value automatic setting module, and acquires the temperature value required in the experiment process through the temperature value automatic setting module, namely, the set temperature TsOperation process of operation parameter acquisition module in incubatorThe temperature change detection module analyzes the temperature change condition according to the real-time collected working operation parameters,
the temperature change detection module acquires a plurality of temperature values within a certain time period T through the operation parameter acquisition module, and the temperature values acquired within the certain time period are T1、T2、T3、…、Ti-1、TiThe time interval between each acquisition time is equal if T1≥T2≥T3≥…≥Ti-1≥Ti≥TsThen calculate Ti-1And TiDifference between them, i.e. calculating T2-T1、T3-T2、T4-T3、...、Ti-1-Ti-2、Ti-Ti-1The temperature change detection module further calculates the temperature change rate according to the calculated difference
Figure BDA0003098660660000101
The temperature change detection module further analyzes the temperature change condition in a certain time period t according to the calculated temperature change rate, namely the average temperature change rate in the certain time period t,
when in use
Figure BDA0003098660660000102
When the value of the temperature difference is larger than or equal to the first preset value, the incubator operation monitoring module generates a corresponding monitoring report according to the current temperature change condition, and the content of the monitoring report comprises the temperature change rate between adjacent acquisition moments, the average temperature change rate in a certain time period and the time required for reaching the set temperature;
if T1≥T2≥T3≥…≥Ti-1≤Ti≥TsNamely, in the cooling process, when the temperature drops to a certain value, the temperature rises again, the incubator operation monitoring module generates a corresponding monitoring report according to the current temperature change condition, and the content of the monitoring report comprises temperature values at different acquisition moments.
The operation parameter acquisition module is connected with the humidity change detection module, the humidity change detection module acquires a plurality of humidity values within a certain time period t through the operation parameter acquisition module, and the humidity values acquired within the certain time period are
Figure BDA0003098660660000103
The time intervals between every two acquisition moments are equal, and the humidity change detection module further acquires the target humidity
Figure BDA0003098660660000104
And obtaining the temperature value T at the same acquisition time through a temperature change detection module1、T2、T3、…、Ti-1、Ti，
If T1≥T2≥T3≥…≥Ti-1≥Ti≥TsAnd is
Figure BDA0003098660660000105
Wherein the content of the first and second substances,
Figure BDA0003098660660000106
the difference value between the target humidity and the target humidity is less than a preset value
Figure BDA0003098660660000107
Figure BDA0003098660660000108
When in use
Figure BDA0003098660660000109
When the value of (a) is greater than a second preset value, the incubator operation monitoring module generates a humidity abnormality monitoring report, wherein tdIs a time difference threshold.
A refrigeration constant temperature and humidity control method comprises the following steps:
step S1: detecting the temperature in the incubator body of the incubator before the machine operates and the set temperature, and judging whether the machine operates according to the difference between the temperature in the incubator body and the set temperature;
step S2: setting the action condition of the control valve body;
step S3: collecting operation parameters of a culture box body after the machine is started;
step S4: adjusting the action of the control valve body according to the parameters of the real-time sensor in the incubator body;
step S5: and monitoring the operation of the incubator according to the temperature and humidity change after the valve body acts, and generating a corresponding monitoring report.
In step S1, the difference delta T between the set temperature before the operation of the compressor and the temperature in the box body is judged, if the difference delta T between the set temperature and the temperature in the box body is more than or equal to 10 ℃, the starting signal of the compressor is stopped, and the operation of the heating device controls the temperature;
if the difference delta T between the set temperature and the temperature in the box body is less than 10 ℃, the compressor is started, and the steps S2, S3, S4 and S5 are sequentially carried out.
The conditions for controlling the valve operation in step S2 include:
the first condition is as follows: if delta T is more than or equal to minus 3 ℃ and less than 10 ℃, controlling the corresponding valve body to be opened, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2;
and a second condition: and if delta T < -3 ℃, controlling the corresponding valve body to be normally opened, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2.
Step S5 further includes:
obtaining the temperature value needed in the experiment process, namely the set temperature TsAnd collecting working operation parameters of the incubator in real time in the working process of the incubator, further analyzing the temperature change condition according to the working operation parameters collected in real time, and obtaining a plurality of temperature values within a certain time period T, wherein the temperature values collected within the certain time period are T1、T2、T3、…、Ti-1、TiThe time interval between each acquisition time is equal if T1≥T2≥T3≥…≥Ti-1≥Ti≥TsThen calculate Ti-1And TiDifference between them, i.e. calculating T2-T1、T3-T2、T4-T3、...、Ti-1-Ti-2、Ti-Ti-1Further calculating a temperature change rate based on the calculated difference
Figure BDA0003098660660000111
Further analyzing the temperature change condition in a certain time period t according to the calculated temperature change rate, namely the average temperature change rate in the certain time period t,
when in use
Figure BDA0003098660660000112
When the value of the current temperature is larger than or equal to a first preset value, generating a corresponding monitoring report according to the current temperature change condition, wherein the content of the monitoring report comprises the temperature change rate between adjacent acquisition moments, the average temperature change rate within a certain time period and the time required for reaching a set temperature;
if T1≥T2≥T3≥…≥Ti-1≤Ti≥TsNamely, in the cooling process, when the temperature is reduced to a certain value, the temperature rises again, and then a corresponding monitoring report is generated according to the current temperature change condition, wherein the content of the monitoring report comprises temperature values at different acquisition moments;
obtaining a plurality of humidity values within a certain time period t, wherein the collected humidity values are
Figure BDA0003098660660000121
The time intervals between every two acquisition moments are equal, and the target humidity is further acquired
Figure BDA0003098660660000122
Temperature value T at the same acquisition time1、T2、T3、…、Ti-1、TiIf T is1≥T2≥T3≥…≥Ti-1≥Ti≥TsAnd is
Figure BDA0003098660660000123
Wherein the content of the first and second substances,
Figure BDA0003098660660000124
the difference value between the target humidity and the target humidity is less than a preset value
Figure BDA0003098660660000125
Figure BDA0003098660660000126
When in use
Figure BDA0003098660660000127
When the value of (a) is greater than a second preset value, a humidity anomaly monitoring report is generated, wherein tdIs a time difference threshold.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a refrigeration constant temperature and humidity control system which characterized in that: the refrigeration constant temperature and humidity control system comprises an experimental data storage module, a temperature value automatic setting module, an illumination value acquisition module, a machine operation condition judgment module, an action condition setting module, an action condition judgment module, a valve body control module, an operation parameter acquisition module, a temperature change detection module, a humidity change detection module and an incubator operation monitoring module,
the experimental data storage module is used for storing various data generated in the experimental process, the automatic temperature value setting module is used for setting a temperature value required in the experimental process according to the data generated in the historical experimental process stored in the experimental data storage module, the illumination value acquisition module is used for acquiring a real-time illumination value in the environment around the incubator, the machine operation condition judgment module is used for judging whether the current operation condition of the machine is met according to various parameters before the machine operates, the action condition setting module is used for setting the action condition of the control valve body, the operation parameter acquisition module is used for acquiring the parameters of the operation state or the non-operation state of the incubator, the action condition judgment module is used for judging the current action condition according to the acquired parameter values, and the valve body control module is used for controlling the action of the valve body according to the judgment result of the action condition judgment module, the incubator operation monitoring module is used for monitoring the operation condition of the current incubator according to the temperature change analysis result and the humidity change analysis result, and generating a corresponding monitoring report according to different analysis results, namely specific temperature and humidity change conditions.
2. A refrigeration, constant temperature and humidity control system as claimed in claim 1, wherein: the machine running condition judging module is connected with the automatic temperature value setting module and the illumination value acquisition module, the automatic temperature value setting module is connected with the experiment data storage module, and the automatic temperature value setting module is used for setting the temperature valueThe module acquires the subject of the experiment, acquires a temperature value corresponding to the subject of the experiment through the experiment data storage module, the automatic temperature value setting module sets the set temperature of the experiment according to the acquired corresponding temperature value, the machine operation condition judgment module acquires the current set temperature through the automatic temperature value setting module, and the illuminance value acquisition module continuously acquires the illuminance value lx in the surrounding environment of the culture box body1、lx2、lx3、…、lxi-1、lxiThe time intervals between the acquisition time nodes for acquiring the illumination values each time are equal, and the machine operation condition judgment module acquires the acquired illumination value data and the corresponding acquisition time node t through the illumination value acquisition module1、t2、t3、…、ti-1、tiAnd analyzing the current illumination value change according to the acquisition time node and the illumination value corresponding to the acquisition time node, namely calculating
Figure FDA0003098660650000011
The value of (a) is,
the machine operation condition judgment module further judges whether the operation condition of the machine is met according to the difference value delta T between the set temperature and the temperature in the box body and the illumination value change analysis result,
when the difference value delta T between the set temperature and the temperature in the box body is larger than or equal to a first threshold value
Figure FDA0003098660650000021
If the value of the temperature difference is larger than or equal to the illumination variation threshold value, stopping the starting signal of the compressor, and operating the heating device to control the temperature;
if the difference value delta T between the set temperature and the temperature in the box body is smaller than a first threshold value
Figure FDA0003098660650000022
If the value of (d) is less than the illumination variation threshold, the compressor is started.
3. A refrigeration, constant temperature and humidity control system as claimed in claim 1, wherein: the action condition judging module is connected with the action condition setting module, the operation parameter collecting module and the temperature value setting module, the action condition setting module presets action conditions of the control valve body, the action condition judging module judges actions required to be carried out on the current valve body according to the action conditions and real-time parameters collected by the operation parameter collecting module according to the preset action conditions of the control valve body, the judgment results are transmitted to the valve body control module, and the action of the corresponding valve body is controlled through the valve body control module.
4. A refrigeration, constant temperature and humidity control system as claimed in claim 3, wherein: the action condition judgment module obtains the set temperature T through the temperature value setting modulesAnd obtaining the current temperature T in the box body through the operation parameter acquisition modulexThe action condition judging module judges the action condition according to the set temperature TsTemperature T in the tank bodyxThe difference between the two is calculated as deltat,
if the difference value delta T is smaller than a first threshold value and larger than or equal to a second threshold value, the valve body control module controls the corresponding valve body to be opened, and the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2;
and if the difference value delta T is smaller than a second threshold value, controlling the corresponding valve body to be normally opened through the valve body control module, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2.
5. A refrigeration, constant temperature and humidity control system as claimed in claim 1, wherein: the temperature change detection module is connected with the operation parameter acquisition module, the incubator operation monitoring module and the temperature value automatic setting module, and acquires a temperature value required in the experiment process through the temperature value automatic setting module, namely, a set temperature TsThe operation parameter acquisition module acquires the operation parameters of the incubator in real time in the working process of the incubator, and the temperature change detection module rootThe temperature change condition is analyzed according to the real-time collected working operation parameters,
the temperature change detection module obtains a plurality of temperature values within a certain time period T through the operation parameter acquisition module, wherein the temperature values acquired within the certain time period are T1、T2、T3、…、Ti-1、TiThe time intervals between every two acquisition moments are equal,
if T1≥T2≥T3≥…≥Ti-1≥Ti≥TsThen calculate Ti-1And TiDifference between them, i.e. calculating T2-T1、T3-T2、T4-T3、...、Ti-1-Ti-2、Ti-Ti-1The temperature change detection module further calculates a temperature change rate according to the calculated difference
Figure FDA0003098660650000031
The temperature change detection module further analyzes the temperature change condition in the certain time period t according to the calculated temperature change rate, namely the average temperature change rate in the certain time period t,
when in use
Figure FDA0003098660650000032
When the value of the monitoring module is larger than or equal to a first preset value, the incubator operation monitoring module generates a corresponding monitoring report according to the current temperature change condition, wherein the content of the monitoring report comprises the temperature change rate between adjacent acquisition moments, the average temperature change rate in the certain time period and the time required for reaching the set temperature;
if T1≥T2≥T3≥…≥Ti-1≤Ti≥TsThat is, in the process of temperature reduction, when the temperature is reduced to a certain value and the temperature rises again, the incubator operation monitoring module generates a corresponding monitoring report according to the current temperature change condition, and the content of the monitoring report includes that the temperature does not riseAnd collecting the temperature value at the same time.
6. A refrigeration, constant temperature and humidity control system as claimed in claim 1 or 5, wherein: the operation parameter acquisition module is connected with the humidity change detection module,
the humidity change detection module acquires a plurality of humidity values in a certain time period t through the operation parameter acquisition module, wherein the humidity values acquired in the certain time period t are
Figure FDA0003098660650000033
The time intervals between every two acquisition moments are equal, and the humidity change detection module further acquires the target humidity
Figure FDA0003098660650000034
And obtaining the temperature value T at the same acquisition time through a temperature change detection module1、T2、T3、…、Ti-1、Ti，
If T1≥T2≥T3≥…≥Ti-1≥Ti≥TsAnd is
Figure FDA0003098660650000035
Wherein the content of the first and second substances,
Figure FDA0003098660650000036
the difference value between the target humidity and the target humidity is less than a preset value
Figure FDA0003098660650000037
Figure FDA0003098660650000038
When in use
Figure FDA0003098660650000039
When the value of the humidity is larger than the second preset value, the incubator operation monitoring module generates a humidity abnormity monitoring reportWherein, t isdIs a time difference threshold.
7. A refrigeration constant temperature and humidity control method is characterized in that: the refrigeration constant temperature and humidity control method comprises the following steps:
step S1: detecting the temperature in the incubator body of the incubator before the machine operates and the set temperature, and judging whether the machine operates according to the difference between the temperature in the incubator body and the set temperature;
step S2: setting the action condition of the control valve body;
step S3: collecting operation parameters of a culture box body after the machine is started;
step S4: adjusting the action of the control valve body according to the parameters of the real-time sensor in the incubator body;
step S5: and monitoring the operation of the incubator according to the temperature and humidity change after the valve body acts, and generating a corresponding monitoring report.
8. The refrigeration constant temperature and humidity control method according to claim 7, characterized in that: in step S1, the difference Δ T between the set temperature before the operation of the compressor and the temperature inside the tank is determined,
if the difference value delta T between the set temperature and the temperature in the box body is larger than or equal to a first threshold value, stopping a starting signal of the compressor, and operating the heating device to control the temperature;
and if the difference value delta T between the set temperature and the temperature in the box body is smaller than a first threshold value, starting the compressor, and sequentially executing the steps S2, S3, S4 and S5.
9. The refrigeration constant temperature and humidity control method according to claim 7, characterized in that: the conditions for controlling the valve body operation in step S2 include:
the first condition is as follows: if the difference value delta T between the set temperature and the temperature in the box body is smaller than a first threshold value and larger than or equal to a second threshold value, controlling the corresponding valve body to be opened, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2;
and a second condition: and if the difference value delta T between the set temperature and the temperature in the box body is smaller than a second threshold value, controlling the corresponding valve body to be normally opened, wherein the valve body comprises a normally closed valve SV1 and a normally closed valve SV 2.
10. The refrigeration constant temperature and humidity control method according to claim 7, characterized in that: the step S5 further includes:
obtaining the temperature value needed in the experiment process, namely the set temperature TsAnd collecting working operation parameters of the incubator in real time in the working process of the incubator, further analyzing the temperature change condition according to the working operation parameters collected in real time, and obtaining a plurality of temperature values within a certain time period T, wherein the temperature values collected within the certain time period are T1、T2、T3、…、Ti-1、TiThe time intervals between every two acquisition moments are equal,
if T1≥T2≥T3≥…≥Ti-1≥Ti≥TsThen calculate Ti-1And TiDifference between them, i.e. calculating T2-T1、T3-T2、T4-T3、...、Ti-1-Ti-2、Ti-Ti-1Further calculating a temperature change rate based on the calculated difference
Figure FDA0003098660650000041
Further analyzing the temperature change condition in the certain time period t according to the calculated temperature change rate, namely the average temperature change rate in the certain time period t,
when in use
Figure FDA0003098660650000042
When the value of the current temperature is larger than or equal to the first preset value, generating a corresponding monitoring report according to the current temperature change condition, wherein the content of the monitoring report comprises the temperature change rate between adjacent acquisition moments, the average temperature change rate in the certain time period and the temperature required for reaching the set temperatureThe time to be spent;
if T1≥T2≥T3≥…≥Ti-1≤Ti≥TsNamely, in the cooling process, when the temperature is reduced to a certain value, the temperature rises again, and then a corresponding monitoring report is generated according to the current temperature change condition, wherein the content of the monitoring report comprises temperature values at different acquisition moments;
obtaining a plurality of humidity values within a certain time period t, wherein the collected humidity values are
Figure FDA0003098660650000051
The time intervals between every two acquisition moments are equal, and the target humidity is further acquired
Figure FDA0003098660650000052
Temperature value T at the same acquisition time1、T2、T3、…、Ti-1、Ti，
If T1≥T2≥T3≥…≥Ti-1≥Ti≥TsAnd is
Figure FDA0003098660650000053
Wherein the content of the first and second substances,
Figure FDA0003098660650000054
the difference value between the target humidity and the target humidity is less than a preset value
Figure FDA0003098660650000055
Figure FDA0003098660650000056
When in use
Figure FDA0003098660650000057
When the value of (a) is greater than a second preset value, a humidity anomaly monitoring report is generated, wherein tdIs a time difference threshold.
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