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CN111219934A - Ventilation guarantee platform for refrigerating chamber - Google Patents

Ventilation guarantee platform for refrigerating chamber Download PDF

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Publication number
CN111219934A
CN111219934A CN201811438216.0A CN201811438216A CN111219934A CN 111219934 A CN111219934 A CN 111219934A CN 201811438216 A CN201811438216 A CN 201811438216A CN 111219934 A CN111219934 A CN 111219934A
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CN
China
Prior art keywords
image
processing
sub
refrigerating chamber
receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201811438216.0A
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Chinese (zh)
Inventor
胡飞青
聂清辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Zejin Electrical Appliance Technology Co ltd
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Ningbo Zejin Electrical Appliance Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Zejin Electrical Appliance Technology Co ltd filed Critical Ningbo Zejin Electrical Appliance Technology Co ltd
Priority to CN201811438216.0A priority Critical patent/CN111219934A/en
Publication of CN111219934A publication Critical patent/CN111219934A/en
Withdrawn legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D13/00Stationary devices, e.g. cold-rooms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/003Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with respect to movable containers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14Collecting or removing condensed and defrost water; Drip trays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/02Doors; Covers
    • F25D23/028Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00Arrangement or mounting of control or safety devices
    • F25D29/005Mounting of control devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00Image enhancement or restoration
    • G06T5/40Image enhancement or restoration using histogram techniques
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00Image enhancement or restoration
    • G06T5/70Denoising; Smoothing

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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)
  • Theoretical Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

The invention relates to a ventilation guarantee platform for a refrigerating chamber, which comprises: the first cabinet body comprises a heat insulation plate, a first evaporator, a freezing chamber, a condenser, a first door body and a first handle, and the first handle is arranged on the first door body; the second cabinet body is arranged below the first cabinet body and comprises a second evaporator, a drain pipe, a refrigerating chamber, a water pan, a compressor, a second door body and a second handle, and the second handle is arranged on the second door body; the range identification device is used for identifying the total number of the pixels which are occupied by each target in the to-be-processed area in an accumulated mode, and dividing the total number of the pixels which are occupied by each target in the accumulated mode into the total number of the pixels in the to-be-processed area to obtain a proportional reference value; and the fan driving device is respectively connected with the range identification device and the fan in the refrigerating chamber and is used for determining the fan driving power proportional to the range identification device and the fan in the refrigerating chamber based on the proportional reference value. According to the invention, the ventilation effect in the refrigerating chamber of the refrigerator can be ensured.

Description

Ventilation guarantee platform for refrigerating chamber
Technical Field
The invention relates to the field of fresh keeping of a refrigerating chamber, in particular to a ventilation guarantee platform of the refrigerating chamber.
Background
The refrigerating chamber is a preservation method for preserving cooled foods at a refrigerating temperature (usually above the freezing point), and particularly for fruits and vegetables, the life metabolic process of the fruits and vegetables is mainly delayed as much as possible to keep the freshness of the fruits and vegetables.
The temperature of a common refrigerating chamber is-1-8 ℃, and a refrigerator stored at the temperature is often called a high-temperature refrigerator. Refrigeration can extend the shelf life of fresh food and processed products by reducing the rate of biochemical reactions and the rate of changes caused by microorganisms. For most foods, refrigeration is actually a less effective preservation technique because it does not prevent the food from spoiling as well as slowing down the rate of food deterioration, as can be done in canning, dehydration or freezing. However, not all foods can have a shelf life that is extended under refrigeration conditions, for example, some tropical and subtropical fruits and some vegetables may be cold damaged if stored at temperatures 3-10 ℃ above their freezing point, and bread ages faster at low temperatures.
Disclosure of Invention
In order to solve the technical problem that the preservation effect is reduced due to excessive food in the refrigerating chamber of the refrigerator at present, the invention provides a refrigerating chamber ventilation guarantee platform, which analyzes the food occupation range in the refrigerating chamber, determines the refrigerating chamber fan driving power in proportion to the occupation range based on the occupation range, so as to guarantee the ventilation efficiency in the refrigerating chamber and the preservation effect; meanwhile, before analyzing the image of the occupied range, on the basis of image smoothing processing, histogram equalization processing corresponding to the acquired histogram equalization level is performed on the smoothed image to output an adaptive processed image; and a to-be-processed region identification mechanism with processing value based on the saturation distribution condition of the pixel points is also set up, so that the image processing efficiency is improved.
According to an aspect of the present invention, there is provided a refrigerating compartment ventilation securing platform, the platform comprising:
the first cabinet body comprises a heat insulation plate, a first evaporator, a freezing chamber, a condenser, a first door body and a first handle, and the first handle is arranged on the first door body.
More specifically, in the refrigerating compartment ventilation support platform, further comprising:
the second cabinet body is arranged below the first cabinet body and comprises a second evaporator, a drain pipe, a refrigerating chamber, a water pan, a compressor, a second door body and a second handle, and the second handle is arranged on the second door body.
More specifically, in the refrigerating compartment ventilation securing platform: the condenser is respectively connected with the first evaporator and the second evaporator, and the compressor and the water pan are both arranged below the refrigerating chamber.
More specifically, in the refrigerating compartment ventilation support platform, further comprising:
and the image capturing device is arranged in the refrigerating chamber and is used for carrying out image capturing operation on the scene in the refrigerating chamber so as to obtain a corresponding refrigerating chamber scene image.
More specifically, in the refrigerating compartment ventilation support platform, further comprising:
the combined processing device is connected with the image capturing device and used for executing continuous multi-item image processing comprising histogram equalization processing and image smoothing processing on the refrigerating chamber scene image to obtain a combined processing image; the content adjusting device is connected with the combined processing device and used for receiving the combined processing image and executing image smoothing processing on the combined processing image to obtain and output a corresponding smoothed processing image; the parameter acquisition equipment is connected with the content adjustment equipment and is used for measuring the histogram equalization level of the signal of the smooth processed image, sending a first control instruction when the histogram equalization level is greater than or equal to a preset level threshold value and sending a second control instruction when the histogram equalization level is less than the preset level threshold value; the adaptive processing equipment is connected with the parameter acquisition equipment, and is used for executing histogram equalization processing corresponding to the histogram equalization level on the smoothed image to output an adaptive processing image when receiving the second control instruction, and is also used for outputting the smoothed image as the adaptive processing image when receiving the first control instruction; the grade identification equipment is connected with the self-adaptive processing equipment and used for receiving the self-adaptive processing image, acquiring each saturation channel value of each pixel point in the self-adaptive processing image, determining the saturation change grade of each direction around each pixel point based on each saturation channel value of each pixel point in the neighborhood of each pixel point, and determining the pixel point to be a gradient change point when the saturation change grade of a certain direction around each pixel point exceeds a preset grade threshold value, wherein the determination of the saturation change degree of each direction around each pixel point based on each saturation channel value of each pixel point in the neighborhood comprises: subtracting a minimum value from a maximum value in each saturation channel value of each pixel point in a certain direction around the pixel point to obtain a corresponding difference value, wherein the larger the corresponding difference value is, the larger the saturation change grade of the corresponding direction is; the distribution statistical equipment is connected with the grade identification equipment and is used for receiving each gradient change point in the self-adaptive processing image and taking the image area with the most gradient change points in the self-adaptive processing image as an area to be processed; ADSL connection equipment connected with the distribution statistical equipment and used for receiving the area to be processed and sending the area to be processed; the range identification device is connected with the distribution statistical device and used for receiving the to-be-processed area, identifying the total number of the pixels which are accumulatively occupied by each target in the to-be-processed area, and dividing the total number of the pixels which are accumulatively occupied by each target in the to-be-processed area by the total number of the pixels in the to-be-processed area to obtain a proportional reference value; the fan driving device is respectively connected with the range identification device and the fan in the refrigerating chamber and used for receiving a proportional reference value and determining fan driving power proportional to the proportional reference value based on the proportional reference value; and the SDRAM storage device is connected with the self-adaptive processing device and is used for storing the corresponding relation between the histogram equalization grade and the intensity of executing the histogram equalization processing.
More specifically, in the refrigerating compartment ventilation securing platform: the self-adaptive processing equipment is composed of an instruction receiving unit, an equalization processing unit and an image output unit, wherein the equalization processing unit is respectively connected with the instruction receiving unit and the image output unit.
More specifically, in the refrigerating compartment ventilation securing platform: the grade identification device comprises a saturation extraction sub-device, a direction analysis sub-device and a grade identification sub-device; the saturation extraction sub-device is used for receiving the self-adaptive processing image and obtaining each saturation channel value of each pixel point in the self-adaptive processing image.
More specifically, in the refrigerating compartment ventilation securing platform: the combined processing device comprises a target initial identification sub-device, a contrast processing sub-device, a histogram equalization sub-device and an image smoothing sub-device.
More specifically, in the refrigerating compartment ventilation securing platform: the target initial identification sub-equipment is used for receiving a high-definition image, determining whether each pixel in the high-definition image belongs to a target pixel based on a preset target gray threshold range, and forming all target pixels in the high-definition image into an initial target area; the contrast processing sub-device is connected with the target initial identification sub-device and is used for improving the gray value levels of all pixels in the initial area in the high-definition image so as to obtain a contrast improved image.
More specifically, in the refrigerating compartment ventilation securing platform: the histogram equalization sub-device is connected with the contrast processing sub-device and is used for receiving the contrast-improved image, enhancing a bright part area in the contrast-improved image and simultaneously reducing a dark part area in the contrast-improved image so as to obtain a target enhanced image; the image smoothing sub-device is connected with the histogram equalization sub-device and is used for receiving the target enhanced image and performing image smoothing processing on the target enhanced image to obtain a combined processed image.
Detailed Description
Embodiments of the refrigerating compartment ventilation securing platform of the present invention will be described in detail below.
The refrigerating chamber in refrigerated foods is actually frozen, and conventionally, the frozen storage is also refrigerated. The refrigerated food is also called quick-frozen food, quick-frozen food and fresh-keeping food, and broadly refers to food which is subjected to quick freezing (also called freezing, refrigerating and fresh-keeping). The quick freezing food is a common food preservation method, which can greatly reduce the food spoilage and the speed of chemical reaction, and can also seriously hinder the microorganism from breeding because water in the food is frozen, thereby greatly prolonging the best edible date of the food.
In order to overcome the defects, the invention builds the refrigerating chamber ventilation guarantee platform and can effectively solve the corresponding technical problem.
The refrigerating compartment ventilation ensuring platform according to the embodiment of the invention comprises:
the first cabinet body comprises a heat insulation plate, a first evaporator, a freezing chamber, a condenser, a first door body and a first handle, and the first handle is arranged on the first door body.
Next, a detailed description of the refrigerating compartment ventilation securing platform according to the present invention will be further described.
In the refrigerating chamber ventilation support platform, the refrigerating chamber ventilation support platform further comprises:
the second cabinet body is arranged below the first cabinet body and comprises a second evaporator, a drain pipe, a refrigerating chamber, a water pan, a compressor, a second door body and a second handle, and the second handle is arranged on the second door body.
In the refrigerating compartment ventilation securing platform: the condenser is respectively connected with the first evaporator and the second evaporator, and the compressor and the water pan are both arranged below the refrigerating chamber.
In the refrigerating chamber ventilation support platform, the refrigerating chamber ventilation support platform further comprises:
and the image capturing device is arranged in the refrigerating chamber and is used for carrying out image capturing operation on the scene in the refrigerating chamber so as to obtain a corresponding refrigerating chamber scene image.
In the refrigerating chamber ventilation support platform, the refrigerating chamber ventilation support platform further comprises:
the combined processing device is connected with the image capturing device and used for executing continuous multi-item image processing comprising histogram equalization processing and image smoothing processing on the refrigerating chamber scene image to obtain a combined processing image;
the content adjusting device is connected with the combined processing device and used for receiving the combined processing image and executing image smoothing processing on the combined processing image to obtain and output a corresponding smoothed processing image;
the parameter acquisition equipment is connected with the content adjustment equipment and is used for measuring the histogram equalization level of the signal of the smooth processed image, sending a first control instruction when the histogram equalization level is greater than or equal to a preset level threshold value and sending a second control instruction when the histogram equalization level is less than the preset level threshold value;
the adaptive processing equipment is connected with the parameter acquisition equipment, and is used for executing histogram equalization processing corresponding to the histogram equalization level on the smoothed image to output an adaptive processing image when receiving the second control instruction, and is also used for outputting the smoothed image as the adaptive processing image when receiving the first control instruction;
the grade identification equipment is connected with the self-adaptive processing equipment and used for receiving the self-adaptive processing image, acquiring each saturation channel value of each pixel point in the self-adaptive processing image, determining the saturation change grade of each direction around each pixel point based on each saturation channel value of each pixel point in the neighborhood of each pixel point, and determining the pixel point to be a gradient change point when the saturation change grade of a certain direction around each pixel point exceeds a preset grade threshold value, wherein the determination of the saturation change degree of each direction around each pixel point based on each saturation channel value of each pixel point in the neighborhood comprises: subtracting a minimum value from a maximum value in each saturation channel value of each pixel point in a certain direction around the pixel point to obtain a corresponding difference value, wherein the larger the corresponding difference value is, the larger the saturation change grade of the corresponding direction is;
the distribution statistical equipment is connected with the grade identification equipment and is used for receiving each gradient change point in the self-adaptive processing image and taking the image area with the most gradient change points in the self-adaptive processing image as an area to be processed;
ADSL connection equipment connected with the distribution statistical equipment and used for receiving the area to be processed and sending the area to be processed;
the range identification device is connected with the distribution statistical device and used for receiving the to-be-processed area, identifying the total number of the pixels which are accumulatively occupied by each target in the to-be-processed area, and dividing the total number of the pixels which are accumulatively occupied by each target in the to-be-processed area by the total number of the pixels in the to-be-processed area to obtain a proportional reference value;
the fan driving device is respectively connected with the range identification device and the fan in the refrigerating chamber and used for receiving a proportional reference value and determining fan driving power proportional to the proportional reference value based on the proportional reference value;
and the SDRAM storage device is connected with the self-adaptive processing device and is used for storing the corresponding relation between the histogram equalization grade and the intensity of executing the histogram equalization processing.
In the refrigerating compartment ventilation securing platform: the self-adaptive processing equipment is composed of an instruction receiving unit, an equalization processing unit and an image output unit, wherein the equalization processing unit is respectively connected with the instruction receiving unit and the image output unit.
In the refrigerating compartment ventilation securing platform: the grade identification device comprises a saturation extraction sub-device, a direction analysis sub-device and a grade identification sub-device;
the saturation extraction sub-device is used for receiving the self-adaptive processing image and obtaining each saturation channel value of each pixel point in the self-adaptive processing image. In the refrigerating compartment ventilation securing platform:
in the refrigerating compartment ventilation securing platform: the combined processing device comprises a target initial identification sub-device, a contrast processing sub-device, a histogram equalization sub-device and an image smoothing sub-device.
In the refrigerating compartment ventilation securing platform: the target initial identification sub-equipment is used for receiving a high-definition image, determining whether each pixel in the high-definition image belongs to a target pixel based on a preset target gray threshold range, and forming all target pixels in the high-definition image into an initial target area;
the contrast processing sub-device is connected with the target initial identification sub-device and is used for improving the gray value levels of all pixels in the initial area in the high-definition image so as to obtain a contrast improved image.
In the refrigerating compartment ventilation securing platform: the histogram equalization sub-device is connected with the contrast processing sub-device and is used for receiving the contrast-improved image, enhancing a bright part area in the contrast-improved image and simultaneously reducing a dark part area in the contrast-improved image so as to obtain a target enhanced image;
the image smoothing sub-device is connected with the histogram equalization sub-device and is used for receiving the target enhanced image and performing image smoothing processing on the target enhanced image to obtain a combined processed image.
In addition, the SDRAM: synchronous Dynamic Random Access Memory, wherein synchronization refers to that a Synchronous clock is required for Memory work, and internal command sending and data transmission are based on the Synchronous clock; dynamic means that the memory array needs to be refreshed continuously to ensure that data is not lost; random means that data are not stored linearly and sequentially, but data are read and written by freely appointing addresses. The clock frequency of the SDR SDRAM is the frequency of data storage. The operating voltage of the SDRAM is 3.3V.
By adopting the refrigerating chamber ventilation guaranteeing platform, aiming at the technical problem that the fresh-keeping effect of the refrigerating chamber of the refrigerator in the prior art is not easy to control, the occupied range of food in the refrigerating chamber is analyzed, and the driving power of the fan of the refrigerating chamber in direct proportion to the occupied range is determined based on the occupied range, so that the ventilation efficiency in the refrigerating chamber is guaranteed, and the fresh-keeping effect of the refrigerating chamber is guaranteed; meanwhile, before analyzing the image of the occupied range, on the basis of image smoothing processing, histogram equalization processing corresponding to the acquired histogram equalization level is performed on the smoothed image to output an adaptive processed image; and a to-be-processed region identification mechanism with processing value based on the saturation distribution condition of the pixel points is also set up, so that the image processing efficiency is improved.
It is to be understood that while the present invention has been described in conjunction with the preferred embodiments thereof, it is not intended to limit the invention to those embodiments. It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the invention without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims (10)

1. A refrigerated compartment ventilation assurance platform, the platform comprising:
the first cabinet body comprises a heat insulation plate, a first evaporator, a freezing chamber, a condenser, a first door body and a first handle, and the first handle is arranged on the first door body.
2. The refrigeration compartment ventilation assurance platform of claim 1, further comprising:
the second cabinet body is arranged below the first cabinet body and comprises a second evaporator, a drain pipe, a refrigerating chamber, a water pan, a compressor, a second door body and a second handle, and the second handle is arranged on the second door body.
3. The fresh food compartment ventilation assurance platform of claim 2, wherein:
the condenser is respectively connected with the first evaporator and the second evaporator, and the compressor and the water pan are both arranged below the refrigerating chamber.
4. The fresh food compartment ventilation assurance platform of claim 3, further comprising:
and the image capturing device is arranged in the refrigerating chamber and is used for carrying out image capturing operation on the scene in the refrigerating chamber so as to obtain a corresponding refrigerating chamber scene image.
5. The fresh food compartment ventilation assurance platform of claim 4, further comprising:
the combined processing device is connected with the image capturing device and used for executing continuous multi-item image processing comprising histogram equalization processing and image smoothing processing on the refrigerating chamber scene image to obtain a combined processing image;
the content adjusting device is connected with the combined processing device and used for receiving the combined processing image and executing image smoothing processing on the combined processing image to obtain and output a corresponding smoothed processing image;
the parameter acquisition equipment is connected with the content adjustment equipment and is used for measuring the histogram equalization level of the signal of the smooth processed image, sending a first control instruction when the histogram equalization level is greater than or equal to a preset level threshold value and sending a second control instruction when the histogram equalization level is less than the preset level threshold value;
the adaptive processing equipment is connected with the parameter acquisition equipment, and is used for executing histogram equalization processing corresponding to the histogram equalization level on the smoothed image to output an adaptive processing image when receiving the second control instruction, and is also used for outputting the smoothed image as the adaptive processing image when receiving the first control instruction;
the grade identification equipment is connected with the self-adaptive processing equipment and used for receiving the self-adaptive processing image, acquiring each saturation channel value of each pixel point in the self-adaptive processing image, determining the saturation change grade of each direction around each pixel point based on each saturation channel value of each pixel point in the neighborhood of each pixel point, and determining the pixel point to be a gradient change point when the saturation change grade of a certain direction around each pixel point exceeds a preset grade threshold value, wherein the determination of the saturation change degree of each direction around each pixel point based on each saturation channel value of each pixel point in the neighborhood comprises: subtracting a minimum value from a maximum value in each saturation channel value of each pixel point in a certain direction around the pixel point to obtain a corresponding difference value, wherein the larger the corresponding difference value is, the larger the saturation change grade of the corresponding direction is;
the distribution statistical equipment is connected with the grade identification equipment and is used for receiving each gradient change point in the self-adaptive processing image and taking the image area with the most gradient change points in the self-adaptive processing image as an area to be processed;
ADSL connection equipment connected with the distribution statistical equipment and used for receiving the area to be processed and sending the area to be processed;
the range identification device is connected with the distribution statistical device and used for receiving the to-be-processed area, identifying the total number of the pixels which are accumulatively occupied by each target in the to-be-processed area, and dividing the total number of the pixels which are accumulatively occupied by each target in the to-be-processed area by the total number of the pixels in the to-be-processed area to obtain a proportional reference value;
the fan driving device is respectively connected with the range identification device and the fan in the refrigerating chamber and used for receiving a proportional reference value and determining fan driving power proportional to the proportional reference value based on the proportional reference value;
and the SDRAM storage device is connected with the self-adaptive processing device and is used for storing the corresponding relation between the histogram equalization grade and the intensity of executing the histogram equalization processing.
6. The fresh food compartment ventilation assurance platform of claim 5, wherein:
the self-adaptive processing equipment is composed of an instruction receiving unit, an equalization processing unit and an image output unit, wherein the equalization processing unit is respectively connected with the instruction receiving unit and the image output unit.
7. The fresh food compartment ventilation assurance platform of claim 6, wherein:
the grade identification device comprises a saturation extraction sub-device, a direction analysis sub-device and a grade identification sub-device;
the saturation extraction sub-device is used for receiving the self-adaptive processing image and obtaining each saturation channel value of each pixel point in the self-adaptive processing image.
8. The fresh food compartment ventilation assurance platform of claim 7, wherein:
the combined processing device comprises a target initial identification sub-device, a contrast processing sub-device, a histogram equalization sub-device and an image smoothing sub-device.
9. The fresh food compartment ventilation assurance platform of claim 8, wherein:
the target initial identification sub-equipment is used for receiving a high-definition image, determining whether each pixel in the high-definition image belongs to a target pixel based on a preset target gray threshold range, and forming all target pixels in the high-definition image into an initial target area;
the contrast processing sub-device is connected with the target initial identification sub-device and is used for improving the gray value levels of all pixels in the initial area in the high-definition image so as to obtain a contrast improved image.
10. The fresh food compartment ventilation assurance platform of claim 9, wherein:
the histogram equalization sub-device is connected with the contrast processing sub-device and is used for receiving the contrast-improved image, enhancing a bright part area in the contrast-improved image and simultaneously reducing a dark part area in the contrast-improved image so as to obtain a target enhanced image;
the image smoothing sub-device is connected with the histogram equalization sub-device and is used for receiving the target enhanced image and performing image smoothing processing on the target enhanced image to obtain a combined processed image.
CN201811438216.0A 2018-11-27 2018-11-27 Ventilation guarantee platform for refrigerating chamber Withdrawn CN111219934A (en)

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Application Number Priority Date Filing Date Title
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