CN115289778B - Temperature and humidity control method and device for medicine refrigerator - Google Patents
Temperature and humidity control method and device for medicine refrigerator Download PDFInfo
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- CN115289778B CN115289778B CN202210986305.9A CN202210986305A CN115289778B CN 115289778 B CN115289778 B CN 115289778B CN 202210986305 A CN202210986305 A CN 202210986305A CN 115289778 B CN115289778 B CN 115289778B
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- 239000003814 drug Substances 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 229940079593 drug Drugs 0.000 claims description 12
- 238000010257 thawing Methods 0.000 claims description 11
- 230000003247 decreasing effect Effects 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 229960005486 vaccine Drugs 0.000 description 3
- 238000004590 computer program Methods 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003124 biologic agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229940127554 medical product Drugs 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
-
- G—PHYSICS
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The application provides a temperature and humidity control method of a medicine refrigerator, which comprises the following steps: calculating the operation parameters of the executing mechanism according to the ambient temperature outside the medicine refrigerating box; detecting whether the internal temperature of the current medicine refrigerator is greater than or equal to a first temperature threshold value and less than or equal to a second temperature threshold value, if not, adjusting the operation parameters of the executing mechanism, and if so, maintaining the operation parameters of the current executing mechanism; detecting whether the internal humidity of the current medicine refrigerator is larger than or equal to a first humidity threshold and smaller than or equal to a second humidity threshold, if not, adjusting the operation parameters of the executing mechanism, and if so, maintaining the operation parameters of the current executing mechanism. The application also provides a temperature and humidity control device of the medicine refrigerator, which comprises a controller, a sensor and an actuating mechanism, wherein the sensor is electrically connected with the controller. The method controls the temperature and the humidity in the box by controlling the running time of the compressor and the running time of the fan, and simultaneously maintains the temperature and the humidity in the box within the optimal range meeting GSP specification requirements, thereby being economical, energy-saving and efficient.
Description
Technical Field
The application relates to the technical field of refrigeration, in particular to a temperature and humidity control method and device for a medicine refrigerator.
Background
As vaccine yields proliferate, so does the need for vaccine storage devices. The storage period of vaccine storage equipment is an important index for measuring the reliability of products, and taking the kexing Zhongwei developed in China as an example, the storage condition can be stored for 3 years in the environment of 2-8 ℃. The medicine refrigerator is used as medicine storing equipment and has the functions of refrigerating and keeping constant temperature. The medicine refrigerator is widely applicable to hospitals, pharmacies, laboratory detection, biological agent rooms, clinical departments, disease control centers and the like due to the strong functions and high efficiency and practicability. According to the description in the medicine management quality management Specification implementation rule, enterprises should reasonably store medicines according to the characteristics of the medicines and meet the following requirements: the medicine is stored according to the temperature requirement marked by the package, the specific temperature is not marked on the package, the medicine is stored according to the storage requirement specified in the pharmacopoeia of the people's republic of China, the medicine storage temperature is required to be 2-8 ℃ for the medicine refrigerator used for storing medicines in a pharmacy, and the relative humidity of the medicine storage is 35-75%.
The temperature and humidity in the medicine refrigerator are important indexes for influencing the quality of medicine preservation, and compared with a more mature temperature control technology, the control of the air humidity in the refrigerator is extremely important in medical products, and excessive water vapor content can condense and frost in the refrigerator to influence the reliability of stored articles of customers. For the drug refrigerator directly cooled by air in a refrigeration mode, the defrosting mode adopts a compressor to stop defrosting, the defrosting time is too short, so that the inner wall of the refrigerator body is frozen to cause customer complaints, the defrosting time is too long, the humidity in the refrigerator body exceeds 75%, the novel GSP standard is not met, and the product requirement cannot be met.
Patent CN105318648A discloses a humidity control method for a refrigerator, which comprises a control system, an evaporation fan and a refrigeration cycle system, wherein a temperature and humidity sensor transmits collected temperature and humidity signals to a singlechip control circuit, and the singlechip control circuit outputs the control signal of the evaporation fan according to set temperature and humidity requirements, and adjusts the humidity in the refrigerator by controlling the wind speed of the evaporation fan. However, the method provided by the patent cannot regulate and control the temperature and the humidity in the refrigerator at the same time, and is not accurate enough in control, and cannot meet the strict requirements of the new GSP standard on the temperature and the humidity of the medicine storage equipment.
Therefore, in order to solve the above problems and further meet the demands of users for storage and reliability, a method and a device for controlling temperature and humidity of a medicine refrigerator are needed to be researched, so that the temperature in the refrigerator is always constant within an optimal temperature range, and meanwhile, the humidity in the refrigerator is always constant within the optimal humidity range, so that the stored medicines are ensured not to fail.
Disclosure of Invention
The application aims to provide a temperature and humidity control method and device for a medicine refrigerator, which are used for overcoming the defect that the medicine refrigerator in the prior art cannot control the temperature and the humidity in the refrigerator at the same time and cannot ensure that the environment in the refrigerator meets the GSP standard of a new edition at any time.
The technical purpose is realized by the following scheme:
in one aspect, the present application provides a method for controlling temperature and humidity of a pharmaceutical refrigerator, the method for controlling temperature and humidity comprising the steps of:
presetting a first temperature threshold, a second temperature threshold, a first humidity threshold and a second humidity threshold;
acquiring the ambient temperature outside the medicine refrigerator;
calculating the operation parameters of the executing mechanism according to the ambient temperature outside the medicine refrigerating box;
detecting whether the internal temperature of the current medicine refrigerator is greater than or equal to a first temperature threshold value and less than or equal to a second temperature threshold value;
if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold or larger than the second temperature threshold, adjusting the operation parameters of the executing mechanism, and re-executing the step of detecting whether the internal temperature of the current medicine refrigerator is larger than or equal to the first temperature threshold and smaller than or equal to the second temperature threshold;
if the internal temperature of the current medicine refrigerator is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, maintaining the operation parameters of the current executing mechanism, and detecting whether the internal humidity of the current medicine refrigerator is greater than or equal to a first humidity threshold and less than or equal to a second humidity threshold;
if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold or larger than the second humidity threshold, adjusting the operation parameters of the executing mechanism, and re-executing the step of detecting whether the internal humidity of the current medicine refrigerator is larger than or equal to the first humidity threshold and smaller than or equal to the second humidity threshold;
if the internal humidity of the current medicine refrigerator is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold, maintaining the operation parameters of the current executing mechanism;
returning to the step of obtaining the ambient temperature outside the medicine refrigerator.
This application is compared in traditional forced air cooling refrigerator, uses compressor and fan simultaneous working's mode to avoid stopping defrosting through the compressor, and the controller is when carrying out temperature control, through receiving incasement humidity signal, and the control fan opens or closes and adjusts the humidity in the fridge: if the humidity needs to be reduced, the controller reduces the running time of the fan by outputting an instruction so as to enable the humidity in the box body to be within a proper range; if the humidity in the box needs to be increased, the controller prolongs the running time of the fan by outputting an instruction, and the stored defrosting water is evaporated to increase the humidity in the box.
Further, the executing mechanism comprises a compressor and a fan, and the operating parameters of the executing mechanism comprise a compressor starting parameter, a compressor stopping parameter, a fan delay starting parameter and a fan delay stopping parameter.
Further, the calculation formula of the operation parameters of the executing mechanism is as follows:
T on ＝T 0 +a；
T off ＝T 0 -b；
t on ＝c；
T off ＝d；
wherein: t (T) on For the starting parameters of the compressor, when the temperature in the cold field box is increased to T on In the above time, the controller controls the compressor to be started; t (T) off For the shutdown parameter of the compressor, when the temperature in the cold field box is reduced to T off When the temperature is below, the controller controls the compressor to stop; t (T) 0 For the initial temperature constant, the default setting is 4 ℃.
t on The delay start parameter of the fan is used for indicating the delay start time of the fan when the compressor is started; t is t off The delay shutdown parameter of the fan is used for representing the delay shutdown time of the fan when the compressor is shut down; a. b, c, d are iteration variables.
The value range of a, b, c, d is determined by the ambient temperature outside the drug refrigerator.
Further, if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold or larger than the second temperature threshold, adjusting the operation parameters of the executing mechanism includes:
presetting initial values of an iteration variable a and an iteration variable b;
if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold value, performing decreasing iteration on the iteration variable a and the iteration variable b, wherein the decreasing iteration can be performed in a mode of N=N-0.5;
if the internal temperature of the current medicine refrigerator is greater than the second temperature threshold, performing incremental iteration on the iteration variable a and the iteration variable b, wherein the incremental iteration can be performed in a mode of n=n+0.5.
Further, if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold or larger than the second humidity threshold, the adjusting the operation parameters of the executing mechanism includes:
presetting initial values of an iteration variable c and an iteration variable d;
if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold, performing decreasing iteration on the iteration variable c, and performing increasing iteration on the iteration variable d, wherein the increasing iteration can be performed in a mode of n=n+1, and the decreasing iteration can be performed in a mode of n=n-1;
if the internal humidity of the current medicine refrigerator is greater than the second humidity threshold, performing incremental iteration on the iteration variable c, and performing decremental iteration on the iteration variable d, wherein the incremental iteration can be performed in a manner of n=n+1, and the decremental iteration can be performed in a manner of n=n-1.
Further, the iteration variable has a value range of:
when the ambient temperature is more than or equal to 25 ℃, the value range of a is 2-4 ℃, the value range of b is 0-1 ℃, the value range of c is 0-120s, and the value range of d is 0-120s;
when the ambient temperature is less than 25 ℃, the value range of a is 3-6, the value range of b is-1-2 ℃, the value range of c is 0-180s, and the value range of d is 0-60s.
Different iteration variable value ranges are set according to different change-in temperatures, so that the temperature and the humidity in the refrigerator can be controlled in the target value ranges more easily.
On the other hand, the application also provides a temperature and humidity control device of the medicine refrigerator, which is suitable for the temperature and humidity control method of the medicine refrigerator, and the temperature and humidity control device comprises the following structures:
a controller;
a sensor electrically connected to the controller; the sensor is configured to acquire environmental temperature information outside the medicine-refrigerator and temperature information and humidity information inside the medicine-refrigerator, and to send the temperature information and the humidity information to the controller;
the actuating mechanism is electrically connected with the controller;
the controller is configured to: and generating a control instruction for controlling the starting or stopping of the executing mechanism according to the temperature information and the humidity information.
Further, the sensor includes: an ambient temperature sensor, an in-box temperature sensor, and an in-box humidity sensor; the actuator comprises: a fan and a compressor; the fan is used for accelerating evaporation of defrosting water in the medicine refrigerator so as to improve humidity in the refrigerator, and the compressor is used for refrigerating so as to reduce temperature in the refrigerator.
Further, the ambient temperature sensor is disposed outside the medicine refrigerator, and the in-box temperature sensor and the in-box humidity sensor are disposed in parallel on the inside wall of the medicine refrigerator, so as to most accurately detect the real-time temperature and humidity in the refrigerator.
Further, the temperature and humidity control device further includes a display panel electrically connected to the controller and configured to display an ambient temperature, an in-tank temperature, and an in-tank humidity. Through the information displayed on the display panel, a user can intuitively monitor the real-time environment in the medicine refrigerator, and further ensure that the humidity and the temperature in the refrigerator are in an ideal range at any time.
Compared with the prior art, the temperature and humidity control method and the device for the medicine refrigerator have the following beneficial effects:
according to the technical scheme, the temperature control and humidity control method is established by combining factors such as compressor running time, fan running time, box internal temperature, box internal humidity and the like, the box internal temperature is found to be in an optimal range by finding the compressor running time matched with the rotating speed of the compressor, meanwhile, the fan running time matched with the rotating speed of the fan is found by finding the internal humidity of the box, when the compressor starts running and stops refrigerating, the box humidity is maintained in the optimal range by delaying the opening or closing of the rotating time of the fan, the control method does not need to increase any other equipment, the box internal temperature and humidity meet GSP standard requirements, meanwhile, the problem of poor freezing or refrigerating effect of the inner wall of the box is avoided, and the temperature control method is an economic, energy-saving and efficient temperature and humidity control method.
In addition, the medicine fridge that this application provided can set for different compressor start-stop parameter and fan start-stop parameter under the different ambient temperature for temperature and humidity can both be invariable in the optimal range in the box, helps the extension of medicine shelf life.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic flow chart of a temperature and humidity control method for a medicine refrigerator according to an embodiment of the present application;
fig. 2 is a schematic system diagram of a temperature and humidity control method of a medicine refrigerator according to an embodiment of the present application;
fig. 3 is a front view of a partial structure of a temperature and humidity control device of a medicine refrigerator according to an embodiment of the present application;
fig. 4 is a cross-sectional view illustrating an internal structure of a temperature and humidity control device of a medicine refrigerator according to an embodiment of the present application.
In the figure:
1-controller, 2-fan, 3-compressor, 4-ambient temperature sensor, 5-incasement temperature sensor, 6-incasement humidity sensor, 7-display panel.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.
In the description of the present application, it should be understood that the terms "upper," "middle," "outer," "inner," "circumferential" or positional relationships are merely for convenience of description and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and are therefore not to be construed as limiting the application.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
In embodiment 1 of the present application, as shown in fig. 3-4, a temperature and humidity control device for a medicine refrigerator is provided, and the operation is implemented according to the flow shown in fig. 1-2.
A temperature and humidity control device of a medicine refrigerator comprises the following structures:
a controller 1;
a sensor electrically connected to the controller 1; the sensor is configured to acquire environmental temperature information outside the medicine-refrigerator and temperature information and humidity information inside the medicine-refrigerator, and to transmit the temperature information and humidity information to the controller 1;
an actuator electrically connected to the controller 1;
the controller 1 is configured to: and generating a control instruction for controlling the starting or stopping of the executing mechanism according to the temperature information and the humidity information.
Further, the sensor includes: an ambient temperature sensor 4, an in-box temperature sensor 5, and an in-box humidity sensor 6; the actuator comprises: a fan 2 and a compressor 3; the fan 2 is used for accelerating evaporation of defrosting water in the medicine refrigerator to improve humidity in the refrigerator, and the compressor 3 is used for refrigerating to reduce temperature in the refrigerator.
Further, the environmental temperature sensor 4 is arranged outside the medicine refrigerator, and the in-box temperature sensor 5 and the in-box humidity sensor 6 are arranged on the inner side wall of the medicine refrigerator in parallel.
Specifically, the temperature and humidity control device in this embodiment operates as follows:
presetting a first temperature threshold, a second temperature threshold, a first humidity threshold and a second humidity threshold;
acquiring the ambient temperature outside the medicine refrigerator;
calculating the operation parameters of the executing mechanism according to the ambient temperature outside the medicine refrigerating box;
detecting whether the internal temperature of the current medicine refrigerator is greater than or equal to a first temperature threshold value and less than or equal to a second temperature threshold value;
if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold or larger than the second temperature threshold, adjusting the operation parameters of the executing mechanism, and re-executing the step of detecting whether the internal temperature of the current medicine refrigerator is larger than or equal to the first temperature threshold and smaller than or equal to the second temperature threshold;
if the internal temperature of the current medicine refrigerator is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, maintaining the operation parameters of the current executing mechanism, and detecting whether the internal humidity of the current medicine refrigerator is greater than or equal to a first humidity threshold and less than or equal to a second humidity threshold;
if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold or larger than the second humidity threshold, adjusting the operation parameters of the executing mechanism, and re-executing the step of detecting whether the internal humidity of the current medicine refrigerator is larger than or equal to the first humidity threshold and smaller than or equal to the second humidity threshold;
if the internal humidity of the current medicine refrigerator is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold, maintaining the operation parameters of the current executing mechanism;
returning to the step of obtaining the ambient temperature outside the medicine refrigerator.
Specifically, in this example, according to the storage requirements prescribed in the pharmacopoeia of the people's republic of China, for a medicine refrigerator for storing medicines in a pharmacy, the temperature at which the medicines are stored is required to be 2 ℃ to 8 ℃, and the relative humidity at which the medicines are stored is 35% RH to 75% RH, whereby the first temperature threshold is set to be 2 ℃, the second temperature threshold is set to be 8 ℃, the first humidity threshold is set to be 35% RH, and the second humidity threshold is set to be 75% RH.
Further, the executing mechanism comprises a compressor and a fan, and the operating parameters of the executing mechanism comprise a compressor starting parameter, a compressor stopping parameter, a fan delay starting parameter and a fan delay stopping parameter.
Further, the calculation formula of the operation parameters of the executing mechanism is as follows:
T on ＝T 0 +a；
T off ＝T 0 -b；
t on ＝c；
T off ＝d；
wherein: t (T) on For compressor start-up parameters, T off Is the shutdown parameter of the compressor, t on For delay start parameter of fan, t off For delay shutdown parameters of fan, T 0 As an initial temperature constant, a, b, c, d is an iterative variable;
the value range of a, b, c, d is determined by the ambient temperature outside the drug refrigerator.
Further, the iteration variable has a value range of:
when the ambient temperature is more than or equal to 25 ℃, the value range of a is 2-4 ℃, the value range of b is 0-1 ℃, the value range of c is 0-120s, and the value range of d is 0-120s;
when the ambient temperature is less than 25 ℃, the value range of a is 3-6, the value range of b is-1-2 ℃, the value range of c is 0-180s, and the value range of d is 0-60s.
Specifically, in the present embodiment, the real-time ambient temperature is acquired by the ambient temperature sensor 4, and the ambient temperature outside the medicine-refrigerator is detected to be greater than 25 ℃, whereby a=2 ℃, b=0 ℃, c=60 s, d=30 s, t are set 0 For the initial temperature constant, the default is set to 4 ℃, thereby calculating the compressor start-up parameter, the compressor stop parameter, the fan delay start-up parameter, and the fan delay stop parameter.
Further, if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold or larger than the second temperature threshold, adjusting the operation parameters of the executing mechanism includes:
presetting initial values of an iteration variable a and an iteration variable b;
if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold value, performing decreasing iteration on the iteration variable a and the iteration variable b;
and if the internal temperature of the current medicine refrigerator is greater than the second temperature threshold value, performing incremental iteration on the iteration variable a and the iteration variable b.
Further, if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold or larger than the second humidity threshold, the adjusting the operation parameters of the executing mechanism includes:
presetting initial values of an iteration variable c and an iteration variable d;
if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold value, performing decremental iteration on the iteration variable c, and performing incremental iteration on the iteration variable d;
and if the internal humidity of the current medicine refrigerator is greater than the second humidity threshold value, performing incremental iteration on the iteration variable c, and performing decremental iteration on the iteration variable d.
Specifically, in the present embodiment, the in-tank temperature information is acquired by the in-tank temperature sensor 5, and it is judged whether or not the in-tank temperature satisfies the target range of 2 ℃ to 8 ℃. If the temperature in the box is less than 2 ℃, decreasing iteration is carried out on the iteration variables a and b in a mode of N=N-0.5 until the temperature in the box is more than or equal to 2 ℃; if the temperature in the box is higher than 8 ℃, the iteration variables a and b are incrementally iterated in a mode of N=N+0.5 until the temperature in the box is lower than or equal to 8 ℃.
If the temperature in the box meets the target range of 2-8 ℃, acquiring the humidity information in the box through the humidity sensor 6 in the box, and judging whether the humidity in the box meets the target range of 35-75% RH. If the humidity in the box is less than 35% RH, performing decreasing iteration on the iteration variable c in a mode of N=N-1, and performing increasing iteration on the iteration variable d in a mode of N=N+1 until the humidity in the box is greater than or equal to 35%; if the humidity in the box is greater than 75% RH, the iteration variable c is iterated incrementally in a mode of N=N+1, and the iteration variable d is iterated incrementally in a mode of N=N-1 until the humidity in the box is less than or equal to 75% RH.
The working principle of the embodiment is as follows: when the controller obtains a signal of higher temperature in the box, the start-up time of the compressor is prolonged by adjusting the start-up and stop temperature of the compressor so that the temperature in the box reaches a target value; judging whether the humidity in the box is in a target humidity range or not at the moment; if the humidity in the box is lower, the delay shutdown time of the fan is increased, and the defrosting water accelerates evaporation under the action of the rotation of the fan to improve the humidity in the box. When the controller obtains a signal of lower temperature in the box, the start-up time of the compressor is shortened by adjusting the start-up and stop temperature of the compressor so that the temperature in the box reaches a target value; judging whether the humidity in the box is in a target humidity range or not at the moment; if the humidity in the box is higher, the delay starting time of the fan is increased, and the fan is started when the refrigerating system is started after the defrosting water flows out as much as possible, so that the temperature in the box is in a target range, and the humidity in the box is in the target range.
In some other embodiments based on embodiment 1, the temperature and humidity control device of the medicine refrigerator provided in the present application may further include a display panel 7, as shown in fig. 3 to 4, where the display panel 7 is electrically connected to the controller 1 and integrated with the ambient temperature sensor 4. The display panel 7 is configured to display the ambient temperature, the in-box temperature and the in-box humidity, and by the information displayed on the display panel, a user can intuitively monitor the real-time environment in the medicine refrigerator, further ensuring that the in-box humidity and the in-box temperature of the refrigerator are in an ideal range at any time.
On the basis, the display panel 7 can be further improved, the display panel 7 is set to be a human-computer interaction interface, a user can set a temperature and humidity target range in the medicine refrigerator according to different requirements, and initial values of a compressor starting parameter, a compressor stopping parameter, a fan delay starting parameter and a fan delay stopping parameter are adjusted by referring to using experience adjustment.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present invention.
Claims (6)
1. The temperature and humidity control method for the medicine refrigerator is characterized by comprising the following steps of:
presetting a first temperature threshold, a second temperature threshold, a first humidity threshold and a second humidity threshold;
acquiring the ambient temperature outside the medicine refrigerator;
calculating the operation parameters of the executing mechanism according to the ambient temperature outside the medicine refrigerating box;
detecting whether the internal temperature of the current medicine refrigerator is greater than or equal to a first temperature threshold value and less than or equal to a second temperature threshold value;
if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold or larger than the second temperature threshold, adjusting the operation parameters of the executing mechanism, and re-executing the step of detecting whether the internal temperature of the current medicine refrigerator is larger than or equal to the first temperature threshold and smaller than or equal to the second temperature threshold;
if the internal temperature of the current medicine refrigerator is greater than or equal to a first temperature threshold and less than or equal to a second temperature threshold, maintaining the operation parameters of the current executing mechanism, and detecting whether the internal humidity of the current medicine refrigerator is greater than or equal to a first humidity threshold and less than or equal to a second humidity threshold;
if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold or larger than the second humidity threshold, adjusting the operation parameters of the executing mechanism, and re-executing the step of detecting whether the internal humidity of the current medicine refrigerator is larger than or equal to the first humidity threshold and smaller than or equal to the second humidity threshold;
if the internal humidity of the current medicine refrigerator is greater than or equal to the first humidity threshold and less than or equal to the second humidity threshold, maintaining the operation parameters of the current executing mechanism;
returning to the step of obtaining the ambient temperature outside the medicine refrigerator;
the execution mechanism comprises a compressor and a fan, and the operation parameters of the execution mechanism comprise a compressor start-up parameter, a compressor stop parameter, a fan delay start-up parameter and a fan delay stop parameter;
the calculation formula of the operation parameters of the executing mechanism is as follows:
T on ＝T 0 +a；
T off ＝T 0 -b；
t on ＝c；
t off ＝d；
wherein: t (T) on For compressor start-up parameters, T off Is the shutdown parameter of the compressor, t on For delay start parameter of fan, t off For delay shutdown parameters of fan, T 0 As an initial temperature constant, a, b, c, d is an iterative variable;
wherein, the value range of a, b, c, d is determined by the external environment temperature of the medicine refrigerator;
the value range of the iteration variable is as follows:
when the ambient temperature is more than or equal to 25 ℃, the value range of a is 2-4 ℃, the value range of b is 0-1 ℃, the value range of c is 0-120s, and the value range of d is 0-120s;
when the ambient temperature is less than 25 ℃, the value range of a is 3-6 ℃, the value range of b is-1-2 ℃, the value range of c is 0-180s, and the value range of d is 0-60s.
2. The method of claim 1, wherein adjusting the operating parameters of the actuator if the current internal temperature of the drug refrigerator is less than the first temperature threshold or greater than the second temperature threshold comprises:
presetting initial values of an iteration variable a and an iteration variable b;
if the internal temperature of the current medicine refrigerator is smaller than the first temperature threshold value, performing decreasing iteration on the iteration variable a and the iteration variable b;
and if the internal temperature of the current medicine refrigerator is greater than the second temperature threshold value, performing incremental iteration on the iteration variable a and the iteration variable b.
3. The method of claim 1, wherein adjusting the operating parameters of the actuator if the current internal humidity of the drug refrigerator is less than a first humidity threshold or greater than a second humidity threshold comprises:
presetting initial values of an iteration variable c and an iteration variable d;
if the internal humidity of the current medicine refrigerator is smaller than the first humidity threshold value, performing decremental iteration on the iteration variable c, and performing incremental iteration on the iteration variable d;
and if the internal humidity of the current medicine refrigerator is greater than the second humidity threshold value, performing incremental iteration on the iteration variable c, and performing decremental iteration on the iteration variable d.
4. A temperature and humidity control device for a medicine refrigerator, which is characterized in that the temperature and humidity control device is suitable for the temperature and humidity control method for the medicine refrigerator according to any one of claims 1-3, and comprises the following structures:
a controller (1);
a sensor electrically connected to the controller (1); the sensor is configured to acquire environmental temperature information outside the medicine refrigerator and temperature information and humidity information inside the medicine refrigerator, and to send the temperature information and the humidity information to the controller (1);
an actuator electrically connected to the controller (1);
the controller (1) is configured to: generating a control instruction for controlling the starting or stopping of the executing mechanism according to the temperature information and the humidity information;
the sensor includes: an ambient temperature sensor (4), an in-box temperature sensor (5) and an in-box humidity sensor (6); the actuator comprises: a fan (2) and a compressor (3); the fan (2) is used for accelerating evaporation of defrosting water in the medicine refrigerator to improve humidity in the refrigerator, and the compressor (3) is used for refrigerating to reduce temperature in the refrigerator;
the calculation formula of the operation parameters of the executing mechanism is as follows:
T on ＝T 0 +a；
T off ＝T 0 -b；
t on ＝c；
t off ＝d；
wherein: t (T) on For compressor start-up parameters, T off Is the shutdown parameter of the compressor, t on For delay start parameter of fan, t off For delay shutdown parameters of fan, T 0 As an initial temperature constant, a, b, c, d is an iterative variable;
wherein, the value range of a, b, c, d is determined by the external environment temperature of the medicine refrigerator;
the value range of the iteration variable is as follows:
when the ambient temperature is more than or equal to 25 ℃, the value range of a is 2-4 ℃, the value range of b is 0-1 ℃, the value range of c is 0-120s, and the value range of d is 0-120s;
when the ambient temperature is less than 25 ℃, the value range of a is 3-6 ℃, the value range of b is-1-2 ℃, the value range of c is 0-180s, and the value range of d is 0-60s.
5. The temperature and humidity control device of a medicine refrigerator according to claim 4, wherein the ambient temperature sensor (4) is arranged outside the medicine refrigerator, and the in-box temperature sensor (5) and the in-box humidity sensor (6) are arranged on the inner side wall of the medicine refrigerator in parallel.
6. A temperature and humidity control device for a pharmaceutical refrigerator according to claim 4, further comprising a display panel (7), the display panel (7) being electrically connected to the controller (1) and configured to display an ambient temperature, an in-tank temperature and an in-tank humidity.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6032471A (en) * | 1998-10-31 | 2000-03-07 | Daewoo Electronics Co., Ltd. | Defrost control method for use in a refrigerator |
| KR20050017959A (en) * | 2003-08-12 | 2005-02-23 | 학교법인조선대학교 | Method and Apparatus for Monitoring and Controlling Temperature and Humidity in Low Temperature Storage House |
| CN105318648A (en) * | 2015-11-13 | 2016-02-10 | 青岛澳柯玛超低温冷冻设备有限公司 | Freezer humidity control method |
| CN110398112A (en) * | 2019-08-30 | 2019-11-01 | 长虹美菱股份有限公司 | A kind of accurate damping chamber of wind cooling refrigerator and its control method |
| CN110398111A (en) * | 2019-08-28 | 2019-11-01 | 长虹美菱股份有限公司 | A kind of wind cooling refrigerator precise humidification device and its control method |
| CN110513944A (en) * | 2019-09-26 | 2019-11-29 | 长虹美菱股份有限公司 | A kind of dual system refrigerator damping chamber and its control method |
| CN111336737A (en) * | 2020-03-05 | 2020-06-26 | 中科美菱低温科技股份有限公司 | Medical refrigeration appliance with multi-dimensional temperature sensor control system |
| CN111486640A (en) * | 2020-04-23 | 2020-08-04 | 长虹美菱股份有限公司 | Moisturizing air-cooled refrigerator and control method thereof |
-
2022
- 2022-08-17 CN CN202210986305.9A patent/CN115289778B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6032471A (en) * | 1998-10-31 | 2000-03-07 | Daewoo Electronics Co., Ltd. | Defrost control method for use in a refrigerator |
| KR20050017959A (en) * | 2003-08-12 | 2005-02-23 | 학교법인조선대학교 | Method and Apparatus for Monitoring and Controlling Temperature and Humidity in Low Temperature Storage House |
| CN105318648A (en) * | 2015-11-13 | 2016-02-10 | 青岛澳柯玛超低温冷冻设备有限公司 | Freezer humidity control method |
| CN110398111A (en) * | 2019-08-28 | 2019-11-01 | 长虹美菱股份有限公司 | A kind of wind cooling refrigerator precise humidification device and its control method |
| CN110398112A (en) * | 2019-08-30 | 2019-11-01 | 长虹美菱股份有限公司 | A kind of accurate damping chamber of wind cooling refrigerator and its control method |
| CN110513944A (en) * | 2019-09-26 | 2019-11-29 | 长虹美菱股份有限公司 | A kind of dual system refrigerator damping chamber and its control method |
| CN111336737A (en) * | 2020-03-05 | 2020-06-26 | 中科美菱低温科技股份有限公司 | Medical refrigeration appliance with multi-dimensional temperature sensor control system |
| CN111486640A (en) * | 2020-04-23 | 2020-08-04 | 长虹美菱股份有限公司 | Moisturizing air-cooled refrigerator and control method thereof |
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