CN110542281A - System for controlling food microwave freeze drying based on image - Google Patents
System for controlling food microwave freeze drying based on image Download PDFInfo
- Publication number
- CN110542281A CN110542281A CN201910898150.1A CN201910898150A CN110542281A CN 110542281 A CN110542281 A CN 110542281A CN 201910898150 A CN201910898150 A CN 201910898150A CN 110542281 A CN110542281 A CN 110542281A
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- temperature
- humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- General Physics & Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Electromagnetism (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Automation & Control Theory (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a system for controlling food microwave freeze drying based on an image, which comprises a box body with a microwave output function, wherein a microwave generating device and a cooling table for freezing food are arranged in the box body; a camera lens for acquiring structural change images of food placed on the cold table is arranged right above the outer part of the box body, the camera lens is connected with a computer, and the computer is used for storing the structural change images of the food placed on the cold table acquired by the camera lens in real time and adjusting the microwave output power of the microwave generating device according to the real-time structural images of the shot food; the inlet hole and the outlet hole of the constant-temperature and constant-humidity gas on the box body are connected with the constant-temperature and constant-humidity box through the inlet pipe and the outlet pipe; the constant temperature and humidity box outputs constant temperature and humidity gas to the box body according to the feedback of the temperature and humidity sensor in real time control. According to the invention, the temperature and humidity in the box body are doubly controlled through the constant temperature and humidity box, and the microwave freeze drying visual observation of food in a constant temperature and humidity microenvironment is realized.
Description
Technical Field
The invention relates to the technical field of food drying, in particular to a system for controlling food microwave freeze drying based on an image.
Background
In the microwave freeze-drying process of food, a fixed microwave output power and a fixed microwave drying time are generally set to complete the freeze-drying process of food. However, the food is affected by the temperature and humidity of the environment during the freeze-drying process. On the other hand, the set microwave output power and microwave drying time have experience limitations. In addition, in order to ensure that the temperature of the table body is uniformly distributed, the size of the table body is set to be very small, and the table body is made of high-thermal-conductivity-coefficient materials such as silver and the like.
Disclosure of Invention
The invention aims to provide a system for controlling food microwave freeze-drying based on an image, which can realize real-time observation of food in a microwave freeze-drying process under the conditions of temperature and humidity control by accurately controlling the temperature and humidity of a microenvironment in a microwave freeze-drying box, thereby accurately controlling the food microwave freeze-drying process through a real-time image.
the invention is realized in this way, a system for controlling food microwave freeze drying based on image, comprising a box body 5 with microwave output function, a microwave generating device 10 and a cooling platform 6 for freezing food are arranged in the box body 5; a camera lens 13 for acquiring structural change images of the food placed on the cold stage 6 is arranged right above the outer part of the box body 5, the camera lens 13 is connected with a computer 14, the computer 14 is used for storing the structural change images of the food placed on the cold stage 6 acquired by the camera lens 13 in real time, and adjusting the microwave output power of the microwave generating device 10 through a microwave generating device controller 12 according to the real-time structural images of the shot food; an inlet hole 16 of the constant temperature and humidity gas and an outlet hole 17 of the constant temperature and humidity gas on the box body 5 are connected with the constant temperature and humidity box 1 through an inlet pipe and an outlet pipe; the constant temperature and humidity box 1 outputs constant temperature and humidity gas to the box body 5 according to the feedback of temperature and humidity sensing in real time control.
The constant temperature and humidity box 1 is connected with the constant temperature and humidity box controller 2, and the constant temperature and humidity box controller 2 controls the constant temperature and humidity box 1 to output constant temperature and humidity gas to the box 5 through real-time feedback of the temperature sensor 3 and the humidity sensor 4 which are arranged in the box 5.
The refrigerating fluid inlet 21 and the refrigerating fluid outlet 22 of the cooling platform 6 are connected with the constant-temperature water tank 8 through pipelines, and the constant-temperature water tank controller 7 controls and adjusts the temperature of the refrigerating fluid provided by the constant-temperature water tank 8 to the cooling platform 6 through the real-time feedback of the cooling platform temperature sensor 20 arranged on the cooling platform 6.
The box body 5 is provided with a temperature sensor detecting hole 18 and a humidity sensor detecting hole 19 for installing a temperature sensor and a humidity sensor.
wherein, the top of the box body 5 is provided with a visible window 11 for the camera lens 13 to detect.
Wherein, the inside rotatory draw-in groove 15 that is equipped with of box 5, it has to inlay on the rotatory draw-in groove microwave generating device 10.
Wherein, the inside high temperature resistant LED lamp 9 that can provide the illumination function that is equipped with of box 5.
The system for controlling the microwave freeze drying of the food based on the image can accurately control the temperature and the humidity of a microenvironment in the microwave freeze drying box body, ensure the uniformity of temperature distribution of a large-size cold stage, realize real-time observation of the food in the microwave freeze drying process under the conditions of temperature and humidity control, analyze structural state parameters of the food at corresponding moments according to the obtained real-time image of the freeze dried food, reasonably control the microwave output power according to the change of the structural state parameters of the food, realize the optimal processing configuration of microwave-assisted drying of the food, accurately control the microwave output power in the process of freeze drying of the food through the real-time image, and obtain a high-quality product.
The invention is beneficial to accurately grasping the characteristic of the structural change of the food in the microwave freeze drying process, realizes that the microwave freeze drying food image is obtained through the camera lens in the microwave freeze drying technical process, the structural state parameter of the food at the corresponding moment is calculated according to the obtained real-time image of the freeze drying food, the microwave output power is reasonably controlled by taking the optimal curve of the structural state parameter of the food and the microwave output power as the basis, and the optimal control of the microwave-assisted freeze drying of the food is realized.
Drawings
FIG. 1 is a front view of a visually controlled microwave freeze-dried food product system of the present invention;
FIG. 2 is a partial cross-sectional view of a housing of the visually controlled microwave freeze-drying food system of the present invention;
FIGS. 3-4 are schematic diagrams of a cooling station in a visually controlled microwave freeze-drying food system according to the present invention;
in the figure: 1 is a constant temperature and humidity box, 2 is a constant temperature and humidity box controller, 3 is a temperature sensor, 4 is a humidity sensor, 5 is a box body, 6 is a cold platform, 7 is a constant temperature water tank controller, and 8 is a constant temperature water tank; 9 is high temperature resistant LED lamp, 10 is microwave generating device, 11 is the visual window, 12 is microwave generating device controller, 13 is the camera lens, 14 is the computer, 15 is rotatory draw-in groove, 16 is the inlet port of constant temperature and humidity gas, 17 is the outlet port of constant temperature and humidity gas, 18 is temperature sensor and visits the hole, 19 is humidity transducer and visits the hole, 20 is cold platform temperature sensor, 21 is the refrigerating fluid import, 22 is the refrigerating fluid export.
Detailed Description
In order that those skilled in the art will better understand the technical solution of the present invention, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and embodiments.
Referring to fig. 1-4, a visually controlled microwave freeze-drying food system comprises:
The refrigerator comprises a refrigerator body 5 with a microwave output function, wherein a rotary clamping groove 15 is formed in the refrigerator body 5, a microwave generating device 10 is embedded in the rotary clamping groove, and a high-temperature-resistant LED lamp 9 capable of providing a lighting function and a cooling table 6 for freezing food are arranged in the refrigerator body 5; the cooling table 6 is used for placing food needing microwave-assisted freeze drying; a camera lens 13 is arranged right above the box body 5, and the camera lens 13 is used for acquiring structural change images of food placed on the cold stage 6 right below the camera lens 13; the box body 5 is provided with a constant temperature and humidity gas inlet hole 16 and a constant temperature and humidity gas outlet hole 17, and is connected with a constant temperature and humidity box 1 through hollow inlet and outlet pipes; the constant temperature and humidity box 1 is connected with a constant temperature and humidity box controller 2, and the constant temperature and humidity box controller 2 can control the constant temperature and humidity box 1 to output constant temperature and humidity gas to the box body 5 through the real-time feedback of a temperature sensor 3 and a humidity sensor 4 which are connected and extend into the box body 5; the camera lens 13 is connected with a computer 14, and the computer 14 can store the structural change image of the food placed on the cold stage 6 collected by the camera lens 13 in real time and adjust the microwave output power of the microwave generating device 10 through the microwave generating device controller 12 according to the measured real-time structural image of the food.
according to the invention, the temperature and humidity in the box body are doubly controlled through the constant temperature and humidity box, and the microwave freeze drying visual observation of food in a constant temperature and humidity microenvironment is realized.
In the invention, the constant temperature and humidity box 1 outputs constant temperature and humidity gas to the box body 5, when in use, after the temperature and humidity required to be reached in the box body 5 are set on the constant temperature and humidity box controller 2, the constant temperature and humidity box 1 outputs constant temperature and humidity air to the box body 5, the temperature sensor 3 and the humidity sensor 4 transmit the temperature and humidity data in the box body 5 to the constant temperature and humidity box controller 2 in an electric signal mode, the constant temperature and humidity box controller 2 automatically corrects the temperature and humidity value of the output constant temperature and humidity gas according to the measured temperature and humidity data, and finally, the data measured by the temperature sensor 3 and the humidity sensor 4 are close to the set temperature and humidity value in the box body 5.
In the invention, the computer 14 can send an image acquisition control signal to the camera lens 13 to control the camera lens 13 to acquire the structural change image of the food placed on the cold stage 6 right below the camera lens 13, then the computer 14 calculates the structural parameters of the real-time image at the corresponding moment through built-in image analysis software, the microwave output power at the next moment is obtained according to the optimal curve of the structural parameters of the corresponding food and the microwave output power, then the computer 14 sends a signal to the microwave generating device controller 12, and the microwave generating device controller 12 controls and adjusts the output power of the microwave generating device 8.
Specifically, the computer 14 obtains the microwave freeze-dried food image through the camera lens 13, calculates the structural state parameter of the food at the corresponding moment according to the obtained real-time image of the freeze-dried food, and reasonably controls the microwave output power according to the optimal curve of the structural state parameter of the food and the microwave output power, thereby realizing the optimal control of microwave-assisted freeze drying of the food.
In the invention, the refrigerating fluid inlet 21 and the refrigerating fluid outlet 22 of the cooling platform 6 are connected with the constant-temperature water tank 8 through hollow pipelines, and the constant-temperature water tank controller can control and regulate the temperature of the refrigerating fluid provided by the constant-temperature water tank 8 to the cooling platform 6 through the real-time feedback of the cooling platform temperature sensor 20.
The cold stage 6 uses a copper material with a large heat conductivity coefficient as a substrate, and is manufactured into the flow channel shown in fig. 3 through a metal cutting process. Of course, other types of cold stage can be used without violating the working principle and the related functions of the cold stage.
Specifically, during the use, set for the temperature that needs to reach on the cold platform 6 on constant temperature basin controller 7, constant temperature basin 8 can be to the interior output low temperature refrigerating fluid of cold platform 6, and the refrigerating fluid gets into by the refrigerating fluid import 21 of cold platform, returns the constant temperature basin by refrigerating fluid export 22, produces the refrigeration effect during, reaches the purpose for the cooling of cold platform 6. The temperature sensor 20 arranged in the cooling platform can transmit the temperature on the cooling platform 6 to the cooling platform controller 7 in an electric signal mode, the constant temperature water tank controller 7 can automatically correct the temperature of the output refrigerating fluid according to the measured temperature data, and finally, the data measured by the cooling platform temperature sensor 20 arranged in the cooling platform is very close to the set temperature value on the cooling platform 6.
Wherein, the box body 5 is provided with a temperature sensor detecting hole 18 and a humidity sensor detecting hole 19 for the entering of a temperature and humidity sensor and a humidity sensor.
Further, a visible window 11 for a camera lens 13 to detect an internal image is arranged on the top of the box 5.
Specifically, four microwave generating devices 10 are arranged in the microwave freeze drying box body 5, and the angles between the adjacent microwave generating devices 10 are distributed at 90 degrees.
Furthermore, 6 high temperature resistant LED lamps 9 are arranged in the box body 5, and the angles between the adjacent high temperature resistant LED lamps 9 are distributed at 60 degrees.
It should be noted that, for the visually controlled microwave freeze-drying food system provided by the present invention, the specific operation control process may be as follows:
Firstly, opening a camera lens 13 and a computer 14, and adjusting the focal length of the camera lens 13 and a light source 9 arranged in a box 5 to enable the camera lens 3 to reach the optimal observation visual angle state; then, the constant temperature and humidity box 1 is opened, a microenvironment temperature and humidity value which needs to be reached in the box body 5 is set through the constant temperature and humidity box controller 2, and the temperature and humidity in the box body 5 are waited to be stable; then, a refrigeration mode and an external circulation mode of the constant-temperature water tank 8 are started, the freezing temperature of the cold platform 6 is set through the constant-temperature water tank controller 7, so that the refrigerating fluid in the constant-temperature water tank 8 flows in from the cold platform inlet 21, flows out from the cold platform outlet 22 and returns to the constant-temperature water tank 8, a complete waterway circulation is formed, and the temperature of the cold platform 6 is waited to be stable; then, setting the initial output power of the microwave through the microwave generating device controller 12; and finally, under the conditions of temperature and pressure control, transmitting the food freeze-drying process image shot in real time to the computer 14 by using the camera lens 3, further obtaining the structural parameters in the food drying process by means of image analysis software, and automatically controlling the microwave generator controller 12 to adjust the microwave output power according to the structural parameter change of the food in the drying process until the food freeze-drying process is finished.
According to the technical scheme, the constant-temperature and constant-humidity box is used for controlling the temperature and humidity of the box body, the constant-temperature water tank is used for controlling refrigeration, the cold platform is controlled in temperature, the microwave generating device controller is used for controlling the microwave output power, and the control of the temperature and the humidity of the microenvironment, the temperature of the cold platform and the microwave output power in the visual observation process are achieved.
Compared with the prior art, the invention has the following beneficial effects:
1. The temperature and humidity control of the food in the microwave freeze drying process can be realized, and the microwave freeze drying visual observation of the food under the conditions of temperature and humidity control can be realized;
2. the structural change of the food in the process of freeze-drying the food can be analyzed according to the shot real-time microwave freeze-drying image, the microwave output power is automatically adjusted, the process of freeze-drying the food is effectively controlled, and therefore high-quality products can be produced.
3. the designed cooling platform has large freezing area, uniform temperature distribution and low manufacturing cost, and can meet the requirement of the cooling platform on temperature control.
In summary, the system for controlling microwave freeze-drying of food based on images provided by the invention can realize real-time observation of moisture migration condition of food under the influence of temperature and humidity by controlling the temperature and humidity of the food, analyze the structural state parameters of the food at the corresponding moment according to the obtained real-time images of the freeze-dried food, calculate the structural state parameters of the food at the corresponding moment according to the obtained real-time images of the freeze-dried food, reasonably control the microwave output power according to the optimal curves of the structural state parameters of the food and the microwave output power, and realize the optimal processing configuration of microwave freeze-drying of the food.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. a system for controlling food microwave freeze drying based on images comprises a box body (5) with a microwave output function, wherein a microwave generating device (10) and a cooling table (6) for freezing food are arranged inside the box body (5); the microwave oven is characterized in that a camera lens (13) used for collecting structural change images of food placed on the cold stage (6) is arranged right above the outer part of the box body (5), the camera lens (13) is connected with a computer (14), the computer (14) is used for storing the structural change images of the food placed on the cold stage (6) collected by the camera lens (13) in real time, and adjusting the microwave output power of the microwave generating device (10) through a microwave generating device controller (12) according to the real-time structural images of the shot food; an inlet hole (16) of constant-temperature and constant-humidity gas on the box body (5) and an outlet hole (17) of the constant-temperature and constant-humidity gas are connected with the constant-temperature and constant-humidity box (1) through an inlet pipe and an outlet pipe; the constant temperature and humidity box (1) outputs constant temperature and humidity gas to the box body (5) according to the feedback of temperature and humidity sensing in real time.
2. The system for controlling food microwave freeze drying based on image as claimed in claim 1, characterized in that the constant temperature and humidity chamber (1) is connected with a constant temperature and humidity chamber controller (2), and the constant temperature and humidity chamber controller (2) controls the constant temperature and humidity chamber (1) to output constant temperature and humidity gas to the chamber (5) through real-time feedback of a temperature sensor (3) and a humidity sensor (4) arranged in the chamber (5).
3. The system for controlling the microwave freeze-drying of the food based on the image as claimed in claim 1 is characterized in that a refrigerating fluid inlet (21) and a refrigerating fluid outlet (22) of the cooling table (6) are connected with the constant-temperature water tank (8) through pipelines, and the constant-temperature water tank controller (7) controls and adjusts the temperature of the refrigerating fluid provided by the constant-temperature water tank (8) to the cooling table (6) through real-time feedback of a cooling table temperature sensor (20) arranged on the cooling table (6).
4. The system for controlling the microwave freeze-drying of the food based on the image as claimed in claim 1, wherein the box body (5) is provided with a temperature sensor probe hole (18) and a humidity sensor probe hole (19) for installing a temperature sensor and a humidity sensor.
5. The system for controlling the microwave freeze-drying of the food based on the image as claimed in claim 1, wherein a visible window (11) which can be detected by a camera lens (13) is arranged at the top of the box body (5).
6. The system for controlling food microwave freeze-drying based on image as claimed in claim 1, characterized in that a rotary slot (15) is arranged in the box body (5), and the microwave generating device (10) is embedded on the rotary slot.
7. The system for controlling the microwave freeze-drying of the food based on the image as claimed in claim 1 is characterized in that a high-temperature resistant LED lamp (9) capable of providing an illumination function is arranged inside the box body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898150.1A CN110542281A (en) | 2019-09-23 | 2019-09-23 | System for controlling food microwave freeze drying based on image |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898150.1A CN110542281A (en) | 2019-09-23 | 2019-09-23 | System for controlling food microwave freeze drying based on image |
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| Publication Number | Publication Date |
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| CN110542281A true CN110542281A (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910898150.1A Pending CN110542281A (en) | 2019-09-23 | 2019-09-23 | System for controlling food microwave freeze drying based on image |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307387A (en) * | 2022-08-12 | 2022-11-08 | 深圳市康乐态原科技企业 | Microwave vacuum freeze-drying box module, table type microwave vacuum freeze-drying device and freeze-drying process |
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| CN1900707A (en) * | 2006-07-12 | 2007-01-24 | 中国建筑材料科学研究总院 | Test device and test method for cool medium free hollow glass dewfall |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115307387A (en) * | 2022-08-12 | 2022-11-08 | 深圳市康乐态原科技企业 | Microwave vacuum freeze-drying box module, table type microwave vacuum freeze-drying device and freeze-drying process |
| CN115307387B (en) * | 2022-08-12 | 2024-05-07 | 深圳市康乐态原科技企业 | Microwave vacuum freeze-drying box module, table type microwave vacuum freeze-drying device and freeze-drying process |
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