CN111023329A - Central air conditioner - Google Patents
Central air conditioner Download PDFInfo
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- CN111023329A CN111023329A CN201911079227.9A CN201911079227A CN111023329A CN 111023329 A CN111023329 A CN 111023329A CN 201911079227 A CN201911079227 A CN 201911079227A CN 111023329 A CN111023329 A CN 111023329A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/078—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser combined with lighting fixtures
Abstract
The invention provides a central air conditioner, comprising: the air conditioner air outlet is divided into a field shape by the body through the partition plate, and a first air outlet, a second air outlet, a third air outlet and a fourth air outlet are sequentially formed; the first air outlet, the second air outlet, the third air outlet and the fourth air outlet are respectively provided with a directional blade, so that the air outlet direction of the first air outlet is upward, the air outlet direction of the second air outlet is rightward, the air outlet direction of the third air outlet is downward, and the air outlet direction of the fourth air outlet is leftward; and a light bar is arranged on the periphery of the air outlet of the air conditioner, and a storage battery connected with the light bar is arranged in the air conditioner. The air outlet of the central air conditioner is in a shape of Chinese character tian, and the four separated air outlets are respectively provided with the directional blades, so that the air outlet directions of the four air outlets can be outwards diffused, and the integral air outlet effect is good.
Description
Technical Field
The invention relates to a central air conditioner.
Background
The central air conditioning system is composed of one or more cold and heat source systems and a plurality of air conditioning systems, and the system is different from the traditional refrigerant type air conditioner, and the air is intensively treated to meet the comfort requirement. The principle of liquid gasification refrigeration is adopted to provide the required cold energy for the air conditioning system so as to offset the cold load of the indoor environment; the heating system provides the air conditioning system with the required heat to offset the indoor ambient heat load. The refrigeration system is a vital part of the central air-conditioning system, and the type, the operation mode, the structural form and the like of the refrigeration system directly influence the economical efficiency, the high efficiency and the rationality of the central air-conditioning system in operation. The air outlets of the existing central air conditioners face one side uniformly, and the air outlet effect is not good.
Disclosure of Invention
Technical problem to be solved
The invention aims to solve the technical problem of providing a central air conditioner with an air outlet in a shape of Chinese character tian and good air outlet effect.
(II) technical scheme
In order to solve the above technical problems, the present invention provides a central air conditioner, including: the air conditioner air outlet is divided into a field shape by the body through the partition plate, and a first air outlet, a second air outlet, a third air outlet and a fourth air outlet are sequentially formed; the first air outlet, the second air outlet, the third air outlet and the fourth air outlet are respectively provided with a directional blade, so that the air outlet direction of the first air outlet is upward, the air outlet direction of the second air outlet is rightward, the air outlet direction of the third air outlet is downward, and the air outlet direction of the fourth air outlet is leftward; and a light bar is arranged on the periphery of the air outlet of the air conditioner, and a storage battery connected with the light bar is arranged in the air conditioner. The air-conditioning outlet of the central air-conditioning is in a shape like a Chinese character 'tian', and the four separated air outlets are respectively provided with the directional blades, so that the air outlet directions of the four air outlets can be dispersed outwards, and the integral air outlet effect is good.
The central air conditioners are generally arranged in indoor spaces such as living rooms and hotels, while some existing central air conditioners are lack of a function of identifying smoke images and are low in intelligence degree; when a fire occurs in a daily building, the subsequent fire extinguishing operation can be carried out only after the power supply of the building is cut off, but the subsequent actions of the fire-fighting personnel are influenced because the fire-fighting personnel cannot judge the indoor environment due to the lack of lamplight. And this technical scheme's central air conditioning possesses smog image recognition's function, when there is smog to report to the police, can intelligently open the lamp strip and carry out work, and central air conditioning still includes:
the high-definition camera is used for carrying out field image acquisition on the indoor environment where the central air conditioner is located so as to obtain and output a field acquisition image;
the first feature extraction equipment is connected with the high-definition camera and used for acquiring multiple frames of continuous on-site acquired images in time and executing the following operations on each frame of on-site acquired image: determining each brightness value of each pixel point of the field acquisition image, and performing histogram processing on the field acquisition image based on each brightness value of each pixel point to obtain a corresponding histogram distribution map;
the second feature extraction equipment is connected with the first feature extraction equipment and used for acquiring each histogram distribution graph corresponding to a plurality of frames of field collected images respectively, analyzing the variation degree of each histogram distribution graph to acquire the image level variation degree, and sending a position correction signal when the image level variation degree exceeds the limit, and sending a position maintaining signal when the image level variation degree does not exceed the limit;
wherein the analyzing the degree of change of each histogram distribution by the second feature extraction device includes: determining, for each luminance distribution range, a degree of change of each histogram profile within the luminance distribution range as a sub-range degree of change, calculating the degree of image level change based on each sub-range degree of change of each luminance distribution range and each weight of each luminance distribution range, each weight of each luminance distribution range being different, and for each weight of each luminance distribution range, the weight thereof being smaller the farther away from a luminance distribution range of 125;
correction amount extraction means, connected to the second feature extraction means, for determining a position deviation correction amount for the high definition camera based on the image level change degree when receiving the position correction signal, and for determining the position deviation correction amount for the high definition camera to be zero when receiving the position hold signal;
the automatic adjusting equipment is connected with the high-definition camera and used for receiving a field acquisition image at the current moment to serve as an instant acquisition image, determining the fuzzy degree of the instant acquisition image, partitioning the instant acquisition image based on the fuzzy degree of the instant acquisition image to obtain a plurality of image partitions with the same size, and executing the following processing on each image partition: acquiring a binarization threshold of the image blocks based on an OTSU algorithm, acquiring each binarization threshold of each image block in the neighborhood of the image blocks based on the OTSU algorithm, adjusting the binarization thresholds of the image blocks based on each binarization threshold of each image block in the neighborhood of the image blocks to obtain adjusted thresholds of the image blocks, and outputting the adjusted thresholds of the image blocks; in the automatic adjustment device, adjusting the binarization threshold of the image block based on each binarization threshold of each image block in the image block neighborhood to obtain an adjusted threshold of the image block comprises: the higher the matching degree of the image block neighborhood image block and the image block is, the greater the influence degree of the image block neighborhood image block on the binarization threshold value of the image block is;
the block merging device is connected with the automatic adjusting device and used for receiving the plurality of image blocks and the adjusted threshold corresponding to each image block, carrying out binarization processing on the image blocks based on the adjusted threshold corresponding to each image block to obtain binarization blocks, merging the binarization blocks corresponding to the image blocks, carrying out edge fusion on the merged image to obtain a fused image, and outputting the fused image as a fusion processing image;
the isolated point removing device is connected with the blocking and merging device and used for receiving the fusion processing image and removing isolated points in the fusion processing image so as to obtain and output a corresponding isolated point removed image;
the contour searching device is connected with the isolated point removing device and used for receiving the isolated point removing image, carrying out uniform blocking processing on the isolated point removing image to obtain each image block, and executing the following operations on each image block: detecting whether each point in the image blocks is an edge point or not, counting the number of the edge points in the image blocks, when the number of the edge points is larger than or equal to a preset number threshold value, marking the image blocks as contour blocks, and when the number of the edge points is smaller than the preset number threshold value, marking the image blocks as non-contour blocks;
the directional processing device is connected with the contour searching device and used for receiving each contour block and each non-contour block and executing the following operations for each contour block: measuring the contrast of the contour blocks, determining a high-frequency distribution frequency band in the contour blocks based on the contrast to serve as a target frequency band of the contour blocks, executing high-pass filtering processing based on the target frequency band on the contour blocks to obtain corresponding high-pass filtering blocks, further subtracting the high-pass filtering blocks from the contour blocks pixel by pixel to obtain and output corresponding low-pass filtering blocks, performing feature enhancement processing on the high-pass filtering blocks to obtain and output corresponding feature enhancement blocks, and further adding the feature enhancement blocks and the low-pass filtering blocks pixel by pixel to obtain local enhancement blocks corresponding to the contour blocks;
the image recovery device is connected with the directional processing device and is used for receiving each non-contour block and each local reinforced block corresponding to each contour block respectively, integrating each non-contour block with each local reinforced block to obtain a block integrated image and outputting the block integrated image;
the smoke judgment equipment is connected with the image restoration equipment and used for receiving the block integrated image, acquiring the brightness value of each pixel point in the block integrated image, setting the pixel points with the brightness value less than or equal to a preset smoke brightness threshold value as smoke pixel points, and sending smoke identification signals when the number of the smoke pixel points exceeds the limit; when the central air conditioner receives the smoke identification signal, the lamp strip is lightened, the storage battery supplies power to the lamp strip, and after the indoor environment where the central air conditioner is located is powered off, the storage battery supplies power to enable the lamp strip to illuminate the indoor environment to a certain extent.
Further, the central air conditioner transmits the smoke identification signal to a remote property monitoring duty room through a wireless transmission unit.
Further, the smaller the degree of blur of the immediately acquired image is, the greater the number of image blocks obtained by blocking the immediately acquired image is.
Further, in the image restoration apparatus, a size of the patch-integrated image coincides with a size of the isolated point removed image.
(III) advantageous effects
The air outlet of the central air conditioner is in a shape of Chinese character tian, and the four separated air outlets are respectively provided with the directional blades, so that the air outlet directions of the four air outlets can be outwards diffused, and the integral air outlet effect is good.
Drawings
FIG. 1 is a schematic structural view of a central air conditioner according to the present invention;
wherein: 1 is a body, 2 is a clapboard, 3 is a first air outlet, 4 is a second air outlet, 5 is a third air outlet, 6 is a fourth air outlet, and 7 is a directional blade.
Detailed Description
Referring to fig. 1, the present invention provides a central air conditioner including: the air conditioner air outlet is divided into a field shape by the body 1 through the partition board 2, and a first air outlet 3, a second air outlet 4, a third air outlet 5 and a fourth air outlet 6 are sequentially formed; the first air outlet 3, the second air outlet 4, the third air outlet 5 and the fourth air outlet 6 are respectively provided with a directional blade 7, so that the air outlet direction of the first air outlet 3 is upward, the air outlet direction of the second air outlet 4 is rightward, the air outlet direction of the third air outlet 5 is downward, and the air outlet direction of the fourth air outlet 6 is leftward; the periphery of the air-conditioning air outlet is provided with a lamp strip 7, and a storage battery connected with the lamp strip 7 is arranged in the body 1. The air-conditioning outlet of this embodiment central air-conditioning is "field" font, installs directional blade on four air outlets that separate respectively, makes the air-out direction of four air outlets can disperse to the outside, and holistic air-out is effectual.
The central air conditioners are generally arranged in indoor spaces such as living rooms and hotels, while some existing central air conditioners are lack of a function of identifying smoke images and are low in intelligence degree; when a fire occurs in a daily building, the subsequent fire extinguishing operation can be carried out only after the power supply of the building is cut off, but the subsequent actions of the fire-fighting personnel are influenced because the fire-fighting personnel cannot judge the indoor environment due to the lack of lamplight. And the central air conditioning of this embodiment possesses smog image recognition's function, when there is smog to report to the police, can intelligently open the lamp strip and carry out work, and central air conditioning still includes:
the high-definition camera is used for carrying out field image acquisition on the indoor environment where the central air conditioner is located so as to obtain and output a field acquisition image;
the first feature extraction equipment is connected with the high-definition camera and used for acquiring multiple frames of continuous field acquisition images in time and executing the following operations on each frame of field acquisition image: determining each brightness value of each pixel point of the field acquisition image, and performing histogram processing on the field acquisition image based on each brightness value of each pixel point to obtain a corresponding histogram distribution map;
the second feature extraction equipment is connected with the first feature extraction equipment and used for acquiring each histogram distribution graph corresponding to each of the multi-frame field collected images, analyzing the variation degree of each histogram distribution graph to acquire the image level variation degree, and sending a position correction signal when the image level variation degree exceeds the limit and sending a position maintaining signal when the image level variation degree does not exceed the limit;
wherein the second feature extraction device performing variation degree analysis on each histogram distribution map includes: determining a degree of change of each histogram profile within the luminance distribution range as a sub-range degree of change for each luminance distribution range, calculating a degree of change of image level based on each sub-range degree of change of each luminance distribution range and each weight of each luminance distribution range, each weight of each luminance distribution range being different, and the weight thereof being smaller for each weight of each luminance distribution range the farther away from the luminance distribution range of 125;
the correction amount extraction device is connected with the second characteristic extraction device and is used for determining the position deviation correction amount of the high-definition camera according to the image level change degree when the position correction signal is received and also used for determining the position deviation correction amount of the high-definition camera to be zero when the position maintaining signal is received;
the automatic adjusting equipment is connected with the high-definition camera and used for receiving the field acquisition image at the current moment to serve as an instant acquisition image, determining the fuzzy degree of the instant acquisition image, and blocking the instant acquisition image based on the fuzzy degree of the instant acquisition image to obtain a plurality of image blocks with the same size, and executing the following processing on each image block: acquiring a binarization threshold of an image block based on an OTSU algorithm, acquiring each binarization threshold of each image block of an image block neighborhood based on the OTSU algorithm, adjusting the binarization threshold of the image block based on each binarization threshold of each image block of the image block neighborhood to obtain an adjusted threshold of the image block, and outputting the adjusted threshold of the image block; in the automatic adjustment device, adjusting the binarization threshold of the image block based on each binarization threshold of each image block in the image block neighborhood to obtain an adjusted threshold of the image block comprises: the higher the matching degree of the image block neighborhood image blocks and the image blocks is, the greater the influence degree of the image block neighborhood image blocks on the binarization threshold of the image blocks is;
the block merging device is connected with the automatic adjusting device and used for receiving the plurality of image blocks and the adjusted threshold corresponding to each image block, carrying out binarization processing on the image blocks based on the adjusted threshold corresponding to each image block to obtain binarization blocks, merging the binarization blocks corresponding to the image blocks, carrying out edge fusion on the merged image to obtain a fused image, and outputting the fused image as a fusion processing image;
the isolated point removing device is connected with the blocking and merging device and used for receiving the fusion processing image and removing isolated points in the fusion processing image so as to obtain and output a corresponding isolated point removed image;
the contour searching device is connected with the isolated point removing device and used for receiving the isolated point removing image, carrying out uniform blocking processing on the isolated point removing image to obtain each image block, and executing the following operations on each image block: detecting whether each point in the image blocks is an edge point or not, counting the number of the edge points in the image blocks, marking the image blocks as contour blocks when the number of the edge points is greater than or equal to a preset number threshold, and marking the image blocks as non-contour blocks when the number of the edge points is less than the preset number threshold;
the directional processing device is connected with the contour searching device and used for receiving each contour block and each non-contour block and executing the following operations for each contour block: measuring the contrast of the contour blocks, determining a high-frequency distribution frequency band in the contour blocks based on the contrast to serve as a target frequency band of the contour blocks, executing high-pass filtering processing based on the target frequency band on the contour blocks to obtain corresponding high-pass filtering blocks, subtracting the high-pass filtering blocks from the contour blocks pixel by pixel to obtain and output corresponding low-pass filtering blocks, performing characteristic enhancement processing on the high-pass filtering blocks to obtain and output corresponding characteristic enhancement blocks, and adding the characteristic enhancement blocks and the low-pass filtering blocks pixel by pixel to obtain local enhancement blocks corresponding to the contour blocks;
the image recovery device is connected with the directional processing device and used for receiving each non-contour block, receiving each local reinforced block corresponding to each contour block, integrating each non-contour block with each local reinforced block to obtain a block integrated image and outputting the block integrated image;
the smoke judgment equipment is connected with the image restoration equipment and used for receiving the block integrated image, acquiring the brightness value of each pixel point in the block integrated image, setting the pixel points with the brightness value less than or equal to a preset smoke brightness threshold value as smoke pixel points, and sending smoke identification signals when the number of the smoke pixel points exceeds the limit; when the central air conditioner receives the smoke identification signal, the light bar 7 is lightened, and the storage battery supplies power to the light bar 7 at the moment.
The central air conditioner transmits the smoke identification signal to a remote property monitoring duty room through a wireless transmission unit.
The smaller the degree of blur of the immediately acquired image is, the larger the number of image blocks obtained by blocking the immediately acquired image is.
In the image restoration apparatus, the size of the patch-integrated image coincides with the size of the isolated point removed image.
The central air conditioner has the function of identifying smoke images, the lamp strip is started to work only under the dangerous condition that smoke exists, the lamp strip is powered by the storage battery, and the intelligent level of the central air conditioner is high; on the basis of block processing, feature enhancement operation is only carried out on blocks with more edge pixels, so that the data volume of image processing is reduced; an automatic self-adaptive binary threshold value adjusting mechanism is established, and particularly, the neighborhood-referenced image threshold value is adjusted, so that convenience is provided for subsequent image processing; on the basis of analyzing the image content, the position deviation correction quantity of the high-definition camera is determined, and the position deviation correction quantity is displayed in real time so that a user can conveniently carry out field correction operation on the high-definition camera.
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 technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A central air conditioner, comprising: the air conditioner air outlet is divided into a field-shaped air outlet through a partition plate (2) by the body (1), and a first air outlet (3), a second air outlet (4), a third air outlet (5) and a fourth air outlet (6) are sequentially formed; the first air outlet (3), the second air outlet (4), the third air outlet (5) and the fourth air outlet (6) are respectively provided with a directional blade (7), so that the air outlet direction of the first air outlet (3) is upward, the air outlet direction of the second air outlet (4) is rightward, the air outlet direction of the third air outlet (5) is downward, and the air outlet direction of the fourth air outlet (6) is leftward; the air conditioner air outlet periphery is provided with lamp strip (7), be provided with in body (1) with the battery that lamp strip (7) are connected.
2. The central air conditioner according to claim 1, further comprising:
the high-definition camera is used for carrying out field image acquisition on the indoor environment where the central air conditioner is located so as to obtain and output a field acquisition image;
the first feature extraction equipment is connected with the high-definition camera and used for acquiring multiple frames of continuous on-site acquired images in time and executing the following operations on each frame of on-site acquired image: determining each brightness value of each pixel point of the field acquisition image, and performing histogram processing on the field acquisition image based on each brightness value of each pixel point to obtain a corresponding histogram distribution map;
the second feature extraction equipment is connected with the first feature extraction equipment and used for acquiring each histogram distribution graph corresponding to a plurality of frames of field collected images respectively, analyzing the variation degree of each histogram distribution graph to acquire the image level variation degree, and sending a position correction signal when the image level variation degree exceeds the limit, and sending a position maintaining signal when the image level variation degree does not exceed the limit;
and the correction amount extraction device is connected with the second characteristic extraction device and used for determining the position deviation correction amount of the high-definition camera according to the image level change degree when the position correction signal is received, and also used for determining the position deviation correction amount of the high-definition camera to be zero when the position maintaining signal is received.
3. The central air conditioner according to claim 2, wherein the second feature extraction device performing the variation degree analysis on the respective histogram profiles includes: for each luminance distribution range, a degree of change of the respective histogram profiles within the luminance distribution range is determined as a sub-range degree of change, the degree of change of the image level is calculated based on the respective sub-range degrees of change of the respective luminance distribution ranges and the respective weights of the respective luminance distribution ranges, the respective weights of the respective luminance distribution ranges are not the same, and the weights are smaller for the luminance distribution ranges farther from 125 for the respective weights of the respective luminance distribution ranges.
4. The central air conditioner according to claim 3, further comprising:
the automatic adjusting equipment is connected with the high-definition camera and used for receiving a field acquisition image at the current moment to serve as an instant acquisition image, determining the fuzzy degree of the instant acquisition image, partitioning the instant acquisition image based on the fuzzy degree of the instant acquisition image to obtain a plurality of image partitions with the same size, and executing the following processing on each image partition: acquiring a binarization threshold of the image blocks based on an OTSU algorithm, acquiring each binarization threshold of each image block in the neighborhood of the image blocks based on the OTSU algorithm, adjusting the binarization thresholds of the image blocks based on each binarization threshold of each image block in the neighborhood of the image blocks to obtain adjusted thresholds of the image blocks, and outputting the adjusted thresholds of the image blocks; in the automatic adjustment device, adjusting the binarization threshold of the image block based on each binarization threshold of each image block in the image block neighborhood to obtain an adjusted threshold of the image block comprises: the higher the matching degree of the image block neighborhood image block and the image block is, the greater the influence degree of the image block neighborhood image block on the binarization threshold value of the image block is;
the block merging device is connected with the automatic adjusting device and used for receiving the plurality of image blocks and the adjusted threshold corresponding to each image block, carrying out binarization processing on the image blocks based on the adjusted threshold corresponding to each image block to obtain binarization blocks, merging the binarization blocks corresponding to the image blocks, carrying out edge fusion on the merged image to obtain a fused image, and outputting the fused image as a fusion processing image;
the isolated point removing device is connected with the blocking and merging device and used for receiving the fusion processing image and removing isolated points in the fusion processing image so as to obtain and output a corresponding isolated point removed image;
the contour searching device is connected with the isolated point removing device and used for receiving the isolated point removing image, carrying out uniform blocking processing on the isolated point removing image to obtain each image block, and executing the following operations on each image block: detecting whether each point in the image blocks is an edge point or not, counting the number of the edge points in the image blocks, when the number of the edge points is larger than or equal to a preset number threshold value, marking the image blocks as contour blocks, and when the number of the edge points is smaller than the preset number threshold value, marking the image blocks as non-contour blocks;
the directional processing device is connected with the contour searching device and used for receiving each contour block and each non-contour block and executing the following operations for each contour block: measuring the contrast of the contour blocks, determining a high-frequency distribution frequency band in the contour blocks based on the contrast to serve as a target frequency band of the contour blocks, executing high-pass filtering processing based on the target frequency band on the contour blocks to obtain corresponding high-pass filtering blocks, further subtracting the high-pass filtering blocks from the contour blocks pixel by pixel to obtain and output corresponding low-pass filtering blocks, performing feature enhancement processing on the high-pass filtering blocks to obtain and output corresponding feature enhancement blocks, and further adding the feature enhancement blocks and the low-pass filtering blocks pixel by pixel to obtain local enhancement blocks corresponding to the contour blocks;
the image recovery device is connected with the directional processing device and is used for receiving each non-contour block and each local reinforced block corresponding to each contour block respectively, integrating each non-contour block with each local reinforced block to obtain a block integrated image and outputting the block integrated image;
the smoke judgment equipment is connected with the image restoration equipment and used for receiving the block integrated image, acquiring the brightness value of each pixel point in the block integrated image, setting the pixel points with the brightness value less than or equal to a preset smoke brightness threshold value as smoke pixel points, and sending smoke identification signals when the number of the smoke pixel points exceeds the limit; when the central air conditioner receives the smoke identification signal, the light bar (7) is lightened, and at the moment, the storage battery supplies power to the light bar (7).
5. The central air conditioner according to claim 4, wherein the smaller the degree of blur of the live view image, the larger the number of image blocks obtained by the blocking process of the live view image.
6. The central air conditioner according to claim 5, wherein in the image restoration device, the size of the block-integrated image is identical to the size of the isolated point removed image.
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| CN201911079227.9A CN111023329A (en) | 2019-11-07 | 2019-11-07 | Central air conditioner |
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| CN201911079227.9A CN111023329A (en) | 2019-11-07 | 2019-11-07 | Central air conditioner |
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Application publication date: 20200417 |