CN113406981B - Circuit, method and device for controlling temperature of cell incubator and incubator - Google Patents
Circuit, method and device for controlling temperature of cell incubator and incubator Download PDFInfo
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- CN113406981B CN113406981B CN202110535782.9A CN202110535782A CN113406981B CN 113406981 B CN113406981 B CN 113406981B CN 202110535782 A CN202110535782 A CN 202110535782A CN 113406981 B CN113406981 B CN 113406981B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Abstract
The application relates to the technical field of intelligent incubators, and discloses a circuit, a method and a device for controlling the temperature of a cell incubator and the incubator. The method comprises the following steps: obtaining a current sampling voltage matched with the alternating current voltage supplied by the cell incubator according to the current sampling voltage signal acquired by the sampling circuit; determining the current actual power supply voltage matched with the current sampling voltage according to the corresponding relation between the stored sampling voltage and the actual power supply voltage; and determining the current theoretical output power of the heating wires on each surface of the cell culture incubator according to the current actual power supply voltage, and controlling the operation of the corresponding heating wires according to the current theoretical output power. The accurate temperature control of the cell incubator is realized, the probability of condensation on the inner wall of the incubator is reduced, and the temperature stability of the incubator is improved.
Description
Technical Field
The application relates to the technical field of intelligent incubators, for example, to a circuit, a method, a device and an incubator for controlling the temperature of a cell incubator.
Background
The cell incubator can also be called a carbon dioxide incubator, is a box body for controlling the temperature and the carbon dioxide concentration, and mainly controls the temperature and the concentration to be 37 ℃ +/-0.1,5% +/-0.1 respectively, and the humidity to be more than 90%, so that the environment in a human body is simulated for cell culture. The incubator controls the temperature abnormally strictly, and the inner wall of the incubator is required to have no condensation phenomenon. Because the humidity in the box body is very high, the condensation phenomenon can be caused by slight fluctuation of temperature or uneven heat of the liner wall.
At present, the temperature control of the carbon dioxide incubator is realized by controlling the heating wires to heat, wherein the left side surface, the right side surface, the top, the back, the bottom, the door body and the cabinet opening of the incubator are all provided with the heating wires with certain power, and therefore, all surfaces are provided with the heating wires, the temperature can be controlled easily without generating condensation phenomenon. In the temperature control process, if one surface is heated unevenly, the power of the heating wire of the surface needs to be increased in order to avoid that water vapor is condensed into dew when meeting condensation. However, the power distribution of each surface cannot be intelligent at present, the fluctuation of temperature is stable, no condensation phenomenon is difficult to coexist, the critical value is an empirical value, the inner wall is free from condensation by sacrificing the temperature fluctuation in most times, the temperature in the incubator is easy to fluctuate, the probability of generating condensation exists, and the temperature control stability is still to be improved.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides a circuit, a method, a device and an incubator for controlling the temperature of a cell incubator, so as to solve the technical problem of low stability of temperature control of the cell incubator.
In some embodiments, the circuit comprises: a transformer, a rectifying circuit, a filter circuit and a series voltage dividing circuit, wherein,
the alternating current voltage of the power supply of the cell incubator is converted into direct current voltage through the rectifier circuit after passing through the transformer;
and after the direct-current voltage is filtered by the filter circuit, the direct-current voltage is input to two ends of the series voltage dividing circuit to obtain a sampling voltage on a first resistor in the series voltage dividing circuit, and the sampling voltage is input into a device for controlling the temperature of the cell incubator.
In some embodiments, the method comprises:
obtaining a current sampling voltage matched with the alternating current voltage supplied by the cell incubator through the sampling circuit;
determining the current actual power supply voltage matched with the current sampling voltage according to the corresponding relation between the stored sampling voltage and the actual power supply voltage;
and determining the current theoretical output power of the heating wires on each surface of the cell culture incubator according to the current actual power supply voltage, and controlling the operation of the corresponding heating wires according to the current theoretical output power.
In some embodiments, the apparatus comprises:
the acquisition module is configured to obtain a current sampling voltage matched with the alternating current voltage supplied by the cell incubator through the sampling circuit;
the determining module is configured to determine a current actual power supply voltage matched with the current sampling voltage according to the corresponding relation between the stored sampling voltage and the actual power supply voltage;
and the control module is configured to determine the current theoretical output power of the heating wire on each surface of the cell culture incubator according to the current actual power supply voltage, and control the operation of the corresponding heating wire according to the current theoretical output power.
In some embodiments, the apparatus for cell incubator temperature control comprises a processor and a memory storing program instructions, the processor being configured to perform the above-described method for cell incubator temperature control when the program instructions are executed.
In some embodiments, the incubator comprises the apparatus for temperature control of a cell incubator described above.
The circuit, the method, the device and the incubator for controlling the temperature of the cell incubator provided by the embodiment of the disclosure can realize the following technical effects:
the sampling circuit is used for obtaining the actual power supply voltage corresponding to the alternating current voltage supplied by the cell incubator and correcting the actual power supply voltage to be the stable theoretical output power, so that the control parameters of the heating wires on each surface of the incubator are determined according to the stable theoretical output power, and then the start and stop of the heating wires are controlled, so that the temperature of each surface of the cell incubator is constant, the probability of condensation on the inner wall of the incubator is reduced, and the stability of the temperature of the incubator is improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic diagram of a sampling circuit for temperature control of a cell incubator according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of a sampling circuit for temperature control of a cell incubator according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow chart of a method for controlling temperature of a cell incubator according to an embodiment of the present disclosure;
FIG. 4 is a schematic flow chart of a method for controlling temperature of a cell incubator according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a temperature control apparatus for a cell incubator according to an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a temperature control device for a cell incubator according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
The cell incubator is simply called an incubator, wherein the left side surface, the right side surface, the top, the back, the bottom, the door body and the cabinet opening of the incubator are all provided with heating wires, namely, each surface of the incubator is provided with heating wires with a certain resistance value R, the start and stop of the corresponding heating wires are controlled through pulse width modulation PWM waves, and the power of the heating wires on each surface which is required to be stable is stable to realize the accurate temperature control of the incubator. However, the incubator is generally powered by mains electricity, the grid voltage corresponding to the incubator often fluctuates, according to p=u 2 According to the embodiment of the disclosure, an actual power supply voltage corresponding to an alternating voltage supplied by the cell incubator can be obtained through the sampling circuit, so that a power correction parameter value K can be obtained through the actual power supply voltage and an effective voltage of the alternating voltage supplied by the cell incubator, and the actual output power on each surface of the cell incubator is corrected according to the power correction parameter value K to obtain the theoretical output power of the heating wireThe power is output, the corresponding duty ratio of the pulse width modulation PWM wave is determined, and the start and stop of the corresponding heating wire are controlled by the PWM wave with the determined parameters, so that the power of the corresponding heating wire can be constant, namely the temperature of each surface in the cell incubator is constant, the probability of condensation on the inner wall of the incubator is reduced, and the stability of the temperature of the incubator is improved.
Therefore, in the incubator temperature control process, the current sampling voltage matched with the alternating current voltage supplied by the cell incubator needs to be obtained through a sampling circuit.
Fig. 1 is a schematic diagram of a sampling circuit for temperature control of a cell incubator according to an embodiment of the present disclosure. The sampling circuit includes: transformer 100, rectifying circuit 200, filter circuit 300, and series voltage divider circuit 400.
The input of the transformer 100 may be an ac voltage signal for the cell incubator's power supply and may convert the high voltage signal of the utility power grid into a device-matched low voltage signal for temperature control of the cell incubator. For example: the high voltage signal of about 220v may be converted to a low voltage signal of about 24v, 12v, or 5 v.
After the high voltage signal of the utility power grid is converted by the transformer 100, the obtained low voltage signal is still an ac signal, and may be converted into a low voltage dc signal by the rectifying circuit 200. That is, the ac voltage signal supplied from the cell incubator is converted into a dc voltage signal by the rectifier circuit 200 after passing through the transformer 100.
Of course, the converted dc voltage signal may be filtered by the filter circuit 300 and input to two ends of the series voltage dividing circuit 400, so that the divided voltage of the first resistor in the series voltage dividing circuit 400 is the sampling voltage signal and is collected by the device for controlling the temperature of the cell incubator.
In some embodiments, the rectifying circuit 200 includes: and a bridge rectifier circuit formed by four diodes.
The series voltage divider circuit 400 divides the dc voltage signal, and thus includes at least two resistors connected in series, a first resistor and a second resistor. In some embodiments, the second resistor may be a variable resistor, i.e., series voltage divider circuit 400 includes: the first resistor is connected with a voltage regulator connected with the first resistor in series. Since the direct current voltage signal converted by the rectifying circuit after passing through the transformer can be a direct current voltage signal of 0-24v, and the device for controlling the temperature of the cell incubator can be a single chip microcomputer or a digital programmable controller, the corresponding input voltage can be 0-5v or 0-12v, the serial voltage dividing circuit 400 is required to divide the voltage, and the serial voltage dividing circuit 400 comprises: and when the voltage regulator is used, the flexibility and applicability of the sampled voltage signal can be improved.
Fig. 2 is a block diagram of a sampling circuit for temperature control of a cell incubator according to an embodiment of the present disclosure. As shown in fig. 2, the ac voltage signal between the ac electric fire zero lines Lin-Nin of the cell incubator is reduced by the transformer VT1, and then the ac voltage signal is integrated into the dc voltage signal by the diode rectifier bridge D9-D10-D11-D12, and the large capacitance capacitor E5 functions as a filter, that is, the filter circuit includes: and a capacitor E5, which filters noise at 50Hz according to the larger capacitance of the capacitor characteristic and smaller filter frequency.
The sliding rheostat VR1 (also referred to as voltage regulator) is connected in parallel with two resistors R112, which can be regarded as an integral resistor, namely a second resistor, which is connected in series with the first resistor R111 to form a series voltage dividing circuit, and according to the principle of series voltage division, the voltage division at two ends of R111 can be changed by changing the resistor VR 1. In this embodiment, the resistor R110 serves as a current limiter, and the device for controlling the temperature of the cell incubator may be a single-chip microcomputer, so that the sampled voltage value sampled by the pin LN-out_ad of the single-chip microcomputer may be the voltages at the two ends of R111.
Therefore, through the sampling circuit, sampling voltage signals matched with alternating current voltage supplied by the cell incubator can be acquired to obtain corresponding sampling voltage, so that actual supply voltage corresponding to the alternating current voltage supplied by the cell incubator can be obtained, then a power correction parameter value K can be obtained, so that the theoretical output power of the heating wire on each surface of the cell incubator is determined, the corresponding duty ratio of the Pulse Width Modulation (PWM) wave is determined according to the theoretical output power, and the on-off of the corresponding heating wire is controlled through the PWM wave of the determined parameter, so that the power of the corresponding heating wire can be constant, namely the temperature of each surface in the cell incubator is constant, the probability of condensation on the inner wall of the incubator is reduced, and the stability of the temperature of the incubator is improved.
Fig. 3 is a schematic flow chart of a method for controlling temperature of a cell incubator according to an embodiment of the present disclosure. As shown in fig. 3, the process for temperature control of the cell incubator includes:
step 301: and obtaining the current sampling voltage matched with the alternating current voltage supplied by the cell incubator according to the current sampling voltage signal acquired by the sampling circuit.
By the sampling circuit, sampling voltage signals matched with alternating voltage supplied by the cell incubator can be acquired, so that corresponding sampling voltages are obtained. The sampling can be performed at regular time or in real time, and each sampling is obtained as a current sampling voltage signal and a current sampling voltage.
Step 302: and determining the current actual power supply voltage matched with the current sampling voltage according to the corresponding relation between the stored sampling voltage and the actual power supply voltage.
For the sampling circuit in the incubator, the correspondence between the sampling voltage and the actual power supply voltage may be stored in advance. In some embodiments, the correspondence between the sampling circuit output voltage and the input voltage may be obtained and saved as the correspondence between the sampling voltage and the actual supply voltage. For example: and obtaining a plurality of input voltages and corresponding output voltages of the sampling circuit through multiple experimental detection, obtaining a corresponding relation between the output voltages and the input voltages of the sampling circuit, and storing the corresponding relation as a corresponding relation between the sampling voltage and the actual power supply voltage. Or, a plurality of input voltages and corresponding output voltage samples of the sampling circuit are obtained through network communication, experimental detection or input numerical values and the like, then machine learning is carried out, and the corresponding relation between the sampling voltage and the actual power supply voltage is obtained and stored.
Table 1 is a correspondence relationship between a sampling voltage and an actual supply voltage provided by an embodiment of the present disclosure.
TABLE 1
If the current sampled voltage obtained by the sampling circuit is consistent with the AD3, the current actual supply voltage can be determined to be 47v according to table 1. If the current sampled voltage is consistent with AD177, then the current actual supply voltage is determined to be 221v according to Table 1.
Step 303: and determining the current theoretical output power of the heating wires on each surface of the cell incubator according to the current actual power supply voltage, and controlling the operation of the corresponding heating wires according to the current theoretical output power.
In some embodiments, the incubator may be powered by a utility grid, and the theoretical voltage corresponding to the utility grid may be the effective voltage of the ac voltage of the utility grid, that is, 220v, so that the theoretical output power for controlling the heating wire may be P 0 ＝220 2 R is D, D is the duty ratio of PWM wave controlled by heating wire at this moment, but the actual output power value is P 1 ＝V 1 2 /R*D，V 1 The actual voltage value of the power grid, namely the current actual power supply voltage. To ensure the accurate temperature control of the incubator, P is required to be made 0 ＝P 1 Then the correction parameter value K is required to be introduced to the actual output power P 1 Making corrections, i.e. 220 2 /R*D＝V 1 2 R D K, yielding k=220 2 /V 1 2 Obtaining the current theoretical output power as P=P 1 *K。
Thus, determining the current theoretical output power of the heating wire on each side of the cell incubator based on the current actual supply voltage comprises: obtaining a power correction parameter value according to the effective voltage of the alternating current voltage supplied by the cell incubator and the current actual supply voltage; and obtaining the current theoretical output power according to the current actual output power of the cell incubator and the power correction parameter value.
Because the start and stop of the heating wire are controlled by the output PWM wave, the key parameters of PWM comprise a duty ratio D, wherein the duty ratio is the proportion of the inner high level of one period to the period; when the high level is output, the heating wire is on, and when the low level is output, the heating wire is off, so that according to the current theoretical output power, the operation of the corresponding heating wire is controlled to comprise: determining the current duty ratio of the Pulse Width Modulation (PWM) wave according to the current theoretical output power; and determining the current PWM wave through the current duty ratio, and outputting and controlling the start and stop of the corresponding heating wire.
Therefore, the actual power supply voltage corresponding to the ac voltage supplied by the cell incubator is obtained through the sampling circuit, so that the power correction parameter value K can be obtained through the actual power supply voltage and the effective voltage of the ac voltage supplied by the cell incubator, thereby determining the theoretical output power of the heating wire on each surface of the cell incubator, determining the corresponding duty ratio of the PWM wave according to the theoretical output power, and controlling the on-off of the corresponding heating wire through the PWM wave of the determined parameter, so that the power of the corresponding heating wire is always matched with the theoretical output power, and thus the temperature of each surface in the cell incubator is constant, the probability of generating condensation on the inner wall of the incubator is reduced, and the stability of the temperature of the incubator is improved.
The following is a detailed description of the operational flow diagram illustrating the process for temperature control of a cell incubator provided by embodiments of the present invention.
In this embodiment, the incubator uses a utility power grid to supply power, and the corresponding effective voltage is 220v, and includes a sampling circuit as shown in fig. 2, and stores the corresponding relationship between the sampling voltage and the actual power supply voltage as shown in table 1.
Fig. 4 is a schematic flow chart of a method for controlling temperature of a cell incubator according to an embodiment of the present disclosure. The process for cell incubator temperature control in connection with fig. 4 includes:
step 401: and obtaining the current sampling voltage matched with the alternating current voltage supplied by the cell incubator according to the current sampling voltage signal acquired by the sampling circuit.
The sampling can be performed at regular time, and each time of sampling, the current sampling voltage is correspondingly obtained.
The sampling circuit shown in fig. 2 is used to obtain the current sampling voltage matched with the alternating voltage supplied by the cell incubator, such as AD170, AD176, etc.
Step 402: and determining the current actual power supply voltage matched with the current sampling voltage according to the corresponding relation between the stored sampling voltage and the actual power supply voltage.
According to the correspondence shown in table 1, it may be determined that the current actual power supply voltage corresponding to the AD176 is 220v, and the current actual power supply voltage corresponding to the AD210 is 254v.
Step 403: and obtaining a power correction parameter value according to the effective voltage of the alternating current voltage supplied by the cell incubator and the current actual supply voltage.
In this embodiment, the effective voltage is 220v, then k=220 2 /V 1 2 。
Step 404: and obtaining the current theoretical output power according to the current actual output power of the cell incubator and the power correction parameter value.
The current theoretical output power is p=p 1 *K，P 1 Is the current actual output power.
Step 405: and determining the current duty ratio of the Pulse Width Modulation (PWM) wave according to the current theoretical output power.
Step 406: and determining the current PWM wave through the current duty ratio, and outputting and controlling the start and stop of the corresponding heating wire.
Therefore, according to the embodiment, the actual power supply voltage corresponding to the alternating current voltage supplied by the cell incubator is obtained through the sampling circuit and is corrected to be the stable theoretical output power, so that the control parameters of the PWM waves for controlling the heating wires on each surface in the incubator are determined according to the stable theoretical output power, and then the starting and stopping of the heating wires are controlled, so that each surface power in the cell incubator is close to the theoretical output power and is in a constant state, the temperature of the incubator is constant, the probability of generating condensation on the inner wall of the incubator is reduced, and the stability of the temperature of the incubator is improved.
According to the above-described procedure for temperature control of a cell incubator, a device for temperature control of a cell incubator can be constructed.
Fig. 5 is a schematic diagram of a temperature control device for a cell incubator according to an embodiment of the present disclosure. As shown in fig. 5, the temperature control apparatus for a cell incubator includes: an acquisition module 510, a determination module 520, and a control module 530.
The acquisition module 510 is configured to obtain, by the sampling circuit, a current sampled voltage that matches an ac voltage supplied by the cell incubator.
The determining module 520 is configured to determine a current actual supply voltage matching the current sampling voltage according to the correspondence between the saved sampling voltage and the actual supply voltage.
The control module 530 is configured to determine a current theoretical output power of the heating wire on each surface of the cell incubator according to the current actual power supply voltage, and control the operation of the corresponding heating wire according to the current theoretical output power.
In some embodiments, further comprising:
the storage module is configured to acquire the corresponding relation between the output voltage and the input voltage of the sampling circuit and store the corresponding relation between the sampling voltage and the actual power supply voltage.
In some embodiments, the control module 530 includes:
a correction determining unit configured to obtain a power correction parameter value according to an effective voltage of the alternating-current voltage supplied by the cell incubator and a current actual supply voltage;
and the power determining unit is configured to obtain the current theoretical output power according to the current actual output power of the cell incubator and the power correction parameter value.
In some embodiments, the control module 530 includes:
a duty ratio determining unit configured to determine a current duty ratio of the pulse width modulation PWM wave according to the current theoretical output power;
and the output control unit is configured to determine the current PWM wave through the current duty ratio and output and control the start and stop of the corresponding heating wire.
Therefore, in this embodiment, the device for controlling the temperature of the cell incubator can obtain the actual power supply voltage corresponding to the ac voltage supplied by the cell incubator through the sampling circuit, and correct the actual power supply voltage to be the stable theoretical output power, so as to determine the control parameters of the heating wires on each surface of the incubator according to the stable theoretical output power, further control the start and stop of the heating wires, so that the temperature of each surface of the cell incubator is constant, the probability of condensation on the inner wall of the incubator is reduced, and the stability of the temperature of the incubator is improved.
Embodiments of the present disclosure provide an apparatus for temperature control of a cell incubator, the structure of which is shown in fig. 6, comprising:
a processor (processor) 1000 and a memory (memory) 1001, and may also include a communication interface (Communication Interface) 1002 and a bus 1003. The processor 1000, the communication interface 1002, and the memory 1001 may communicate with each other via the bus 1003. The communication interface 1002 may be used for information transfer. Processor 1000 may invoke logic instructions in memory 1001 to perform the method for cell incubator temperature control of the above-described embodiments.
Further, the logic instructions in the memory 1001 described above may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand alone product.
The memory 1001 is used as a computer readable storage medium for storing a software program and a computer executable program, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 1000 performs functional applications and data processing by executing program instructions/modules stored in the memory 1001, i.e., implements the method for cell incubator temperature control in the above-described method embodiment.
The memory 1001 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, at least one application program required for functions; the storage data area may store data created according to the use of the terminal incubator, etc. In addition, the memory 1001 may include a high-speed random access memory, and may also include a nonvolatile memory.
Embodiments of the present disclosure provide a temperature control device for a cell incubator, comprising: a processor and a memory storing program instructions, the processor being configured to execute a method for cell incubator temperature control when the program instructions are executed.
The embodiment of the disclosure provides an incubator, which comprises the temperature control device for the cell incubator.
Embodiments of the present disclosure provide a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling temperature of a cell incubator.
The disclosed embodiments provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, cause the computer to perform the above-described method for cell incubator temperature control.
The computer readable storage medium may be a transitory computer readable storage medium or a non-transitory computer readable storage medium.
Embodiments of the present disclosure may be embodied in a software product stored on a storage medium, comprising one or more instructions for causing a computer incubator (which may be a personal computer, a server, or a network incubator, etc.) to perform all or part of the steps of a method according to embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium including: a plurality of media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or a transitory storage medium.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may involve structural, logical, electrical, process, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The scope of the embodiments of the present disclosure encompasses the full ambit of the claims, as well as all available equivalents of the claims. When used in this application, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without changing the meaning of the description, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first element and the second element are both elements, but may not be the same element. Moreover, the terminology used in the present application is for the purpose of describing embodiments only and is not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a," "an," and "the" (the) are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, when used in this application, the terms "comprises," "comprising," and/or "includes," and variations thereof, mean that the stated features, integers, steps, operations, elements, and/or components are present, but that the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof is not precluded. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method or incubator comprising the element. In this context, each embodiment may be described with emphasis on the differences from the other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method sections disclosed in the embodiments, the description of the method sections may be referred to for relevance.
Those of skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. The skilled artisan may use different methods for each particular application to achieve the described functionality, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. It will be clearly understood by those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, incubators, etc.) may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units may be merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. In addition, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form. The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to implement the present embodiment. In addition, each functional unit in the embodiments of the present disclosure may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than that disclosed in the description, and sometimes no specific order exists between different operations or steps. For example, two consecutive operations or steps may actually be performed substantially in parallel, they may sometimes be performed in reverse order, which may be dependent on the functions involved. Each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (8)
1. A method for temperature control of a cell incubator, comprising:
obtaining a current sampling voltage matched with the alternating current voltage supplied by the cell incubator according to the current sampling voltage signal acquired by the sampling circuit;
determining the current actual power supply voltage matched with the current sampling voltage according to the corresponding relation between the stored sampling voltage and the actual power supply voltage;
determining the current theoretical output power of the heating wires on each surface of the cell culture incubator according to the current actual power supply voltage, and controlling the operation of the corresponding heating wires according to the current theoretical output power, wherein the method specifically comprises the following steps: obtaining a power correction parameter value according to the effective voltage of the alternating current voltage supplied by the cell incubator and the current actual supply voltage; obtaining the current theoretical output power according to the current actual output power of the cell incubator and the power correction parameter value;
the effective voltage of the alternating current voltage supplied by the cell incubator and the current actual supply voltage are used for obtaining the power correction parameter values as follows: k=220 2 /V 1 2 Wherein K is the power correction parameter value, V 1 -providing said current actual supply voltage;
the current theoretical output power is obtained according to the current actual output power of the cell incubator and the power correction parameter value, and is: p=p1×k, where P is the theoretical output power, P1 is the actual output power, and K is the power correction parameter value;
and controlling the operation of the corresponding heating wire according to the current theoretical output power comprises the following steps: determining the current duty ratio of the Pulse Width Modulation (PWM) wave according to the current theoretical output power; and determining a current PWM wave according to the current duty ratio, and outputting and controlling the start and stop of the corresponding heating wire.
2. The method of claim 1, wherein prior to obtaining a current sampled voltage that matches an ac voltage supplied to the cell incubator, comprising:
and acquiring the corresponding relation between the output voltage and the input voltage of the sampling circuit, and storing the corresponding relation as the corresponding relation between the sampling voltage and the actual power supply voltage.
3. A sampling circuit for temperature control of a cell incubator, employing the method of claim 1 or 2, the sampling circuit comprising: a transformer, a rectifying circuit, a filter circuit and a series voltage dividing circuit, wherein,
the alternating current voltage signal of the power supply of the cell incubator is converted into a direct current voltage signal through the rectifier circuit after passing through the transformer;
and after the direct-current voltage signal is filtered by the filter circuit, the direct-current voltage signal is input to two ends of the series voltage dividing circuit to obtain a sampling voltage signal on a first resistor in the series voltage dividing circuit, and the sampling voltage signal is input into a device for controlling the temperature of the cell incubator.
4. A sampling circuit according to claim 3, wherein the rectifying circuit comprises:
and a bridge rectifier circuit formed by four diodes.
5. The sampling circuit according to claim 3 or 4, wherein the series voltage divider circuit comprises:
the first resistor is connected with a voltage regulator connected with the first resistor in series.
6. An apparatus for temperature control of a cell incubator, wherein the cell incubator comprises a sampling circuit as claimed in any one of claims 3 to 5, the apparatus comprising:
the acquisition module is configured to obtain a current sampling voltage matched with the alternating current voltage supplied by the cell incubator through the sampling circuit;
the determining module is configured to determine a current actual power supply voltage matched with the current sampling voltage according to the corresponding relation between the stored sampling voltage and the actual power supply voltage;
the control module is configured to determine the current theoretical output power of the heating wire on each surface of the cell culture incubator according to the current actual power supply voltage, and control the operation of the corresponding heating wire according to the current theoretical output power; the effective voltage of the alternating current voltage supplied by the cell incubator and the current actual supply voltage are used for obtaining the power correction parameter values as follows: k=220 2 /V 1 2 Wherein K is the followingPower correction parameter value, V 1 -providing said current actual supply voltage; the current theoretical output power is obtained according to the current actual output power of the cell incubator and the power correction parameter value, and is: p=p1×k, where P is the theoretical output power, P1 is the actual output power, and K is the power correction parameter value; and controlling the operation of the corresponding heating wire according to the current theoretical output power comprises the following steps: determining the current duty ratio of the Pulse Width Modulation (PWM) wave according to the current theoretical output power; and determining a current PWM wave according to the current duty ratio, and outputting and controlling the start and stop of the corresponding heating wire.
7. An apparatus for cell incubator temperature control, the apparatus comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for cell incubator temperature control of claim 1 or 2 when the program instructions are executed.
8. A cell culture incubator, comprising: the apparatus for temperature control of a cell incubator as recited in claim 6 or 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110535782.9A CN113406981B (en) | 2021-05-17 | 2021-05-17 | Circuit, method and device for controlling temperature of cell incubator and incubator |
| PCT/CN2022/073014 WO2022242215A1 (en) | 2021-05-17 | 2022-01-20 | Circuit, method and apparatus for temperature control of cell incubator, and incubator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110535782.9A CN113406981B (en) | 2021-05-17 | 2021-05-17 | Circuit, method and device for controlling temperature of cell incubator and incubator |
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| CN113406981A CN113406981A (en) | 2021-09-17 |
| CN113406981B true CN113406981B (en) | 2023-06-16 |
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| CN202110535782.9A Active CN113406981B (en) | 2021-05-17 | 2021-05-17 | Circuit, method and device for controlling temperature of cell incubator and incubator |
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| WO (1) | WO2022242215A1 (en) |
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| CN113406981B (en) * | 2021-05-17 | 2023-06-16 | 青岛海尔生物医疗科技有限公司 | Circuit, method and device for controlling temperature of cell incubator and incubator |
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| CN111141949B (en) * | 2020-02-12 | 2022-02-11 | 东南大学 | Alternating voltage sampling circuit for output power control and design method thereof |
| CN212259387U (en) * | 2020-07-09 | 2020-12-29 | 深圳莱福德科技股份有限公司 | Constant power control circuit and driving system |
| CN113406981B (en) * | 2021-05-17 | 2023-06-16 | 青岛海尔生物医疗科技有限公司 | Circuit, method and device for controlling temperature of cell incubator and incubator |
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| RU2010507C1 (en) * | 1991-12-18 | 1994-04-15 | Таршиков Владислав Иванович | Incubator |
| CN201828843U (en) * | 2010-06-29 | 2011-05-11 | 华中农业大学 | Intelligent controller suitable for bean sprout incubator |
| CN110791411A (en) * | 2019-11-29 | 2020-02-14 | 徐州医科大学 | Multi-scene and multi-strain incubator |
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| CN113406981A (en) | 2021-09-17 |
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