CN115684194A

CN115684194A - Intelligent display screen cleaning system

Info

Publication number: CN115684194A
Application number: CN202211724757.6A
Authority: CN
Inventors: 伊厚会; 尹波; 李晓凤
Original assignee: Weifang University of Science and Technology
Current assignee: Weifang University of Science and Technology
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-02-03
Anticipated expiration: 2042-12-31
Also published as: CN115684194B

Abstract

The invention relates to the field of display screen cleaning, in particular to an intelligent display screen cleaning system, which comprises: the invention discloses a dust-free display screen cleaning device, which comprises a dust-free box body, a conveying device, a cleaning roller set, an exhaust fan, an image acquisition device, an adjustable illumination device, a dirt cleaning device, an air inlet, a central control unit and a display unit, wherein the dust-free box body, the conveying device, the cleaning roller set, the exhaust fan, the image acquisition device, the adjustable illumination device, the dirt cleaning device, the air inlet, the central control unit and the display unit are used for correspondingly adjusting related devices according to primary dirt information and secondary dirt information.

Description

Intelligent display screen cleaning system

Technical Field

The invention relates to the field of display screen cleaning, in particular to an intelligent display screen cleaning system.

Background

Along with the rapid development of science and technology, the display screens with different application places are different in size and are spread throughout our lives, however, due to the technical problems of the display screens, the surfaces of the display screens are prone to dust adsorption, removal of stubborn stains on the surfaces of the display screens is prone to damage to the screens, manual cleaning effects of large display screens used in markets are poor, time and labor are wasted, and then how to automatically and efficiently clean the display screens is always a problem to be solved by people.

Chinese patent publication No. CN115351007a discloses a screen cleaning system and screen assembling equipment, including: the device comprises a mounting frame, a first shooting device and a blowing device, wherein the mounting frame is provided with a screen conveying line, and a first detection station and a cleaning station are arranged on the movable stroke of the screen conveying line; the first shooting device is arranged corresponding to the first detection station and is used for shooting a screen on the first detection station; the blowing device is arranged corresponding to the cleaning station and used for blowing and cleaning the screen on the cleaning station. It can be seen that the screen cleaning system and the screen assembling apparatus have the following problems: the image acquisition of the screen is directly shot by the shooting device, and the problem that the spot on the surface of the display screen is not clearly shot due to different illumination angles is not considered, so that the screen cleaning effect is poor.

Disclosure of Invention

Therefore, the invention provides an intelligent display screen cleaning system which is used for solving the problem of poor cleaning effect caused by inaccurate identification of dirt on the surface of a display screen due to fixed arrangement of a light source in the screen cleaning system in the prior art.

In order to achieve the above object, the present invention provides an intelligent display screen cleaning system, including:

the dust-free box body is used as a cleaning container for cleaning the display screen;

the conveying device is arranged in the dust-free box body, is connected with the inlet and the outlet of the dust-free box body, and is used for conveying the display screen to be cleaned to the corresponding cleaning position and outputting the cleaned display screen to the outside of the dust-free box body;

the cleaning roller set is arranged in the dust-free box body, is close to the inlet and is positioned above the conveying device and used for cleaning the display screen to be cleaned at one time, the cleaning roller set comprises a first cleaning roller positioned below and close to the conveying device and a second cleaning roller positioned above and far away from the conveying device, and the first cleaning roller and the second cleaning roller drive the superfine fiber dust cleaning cloth sleeved on the first cleaning roller and the second cleaning roller to generate relative motion with the display screen to be cleaned so as to clean and adsorb dust on the surface of the display screen to be cleaned;

the exhaust fan is arranged above the cleaning roller set in the dust-free box body, is connected with an exhaust port on the dust-free box body and is used for exhausting dust in the dust-free box body by pumping air in the dust-free box body;

the image acquisition device comprises a first image acquisition device and a second image acquisition device, the first image acquisition device is arranged at the top in the dust-free box body, is close to the cleaning roller set and is used for acquiring a primary dirt image of the display screen to be cleaned after the display screen to be cleaned is cleaned for the first time, and the second image acquisition device is arranged at the top in the dust-free box body, is far away from the cleaning roller set and is used for acquiring a secondary dirt image of the display screen to be cleaned after the display screen is cleaned for the second time;

the adjustable illumination device is arranged at the top or the side wall of the dust-free box body, comprises a rotatable light source capable of rotating according to a set angle and is used for illuminating the display screen to be cleaned according to the set angle;

the dirt cleaning device is arranged in the dust-free box body above the conveying device and used for spraying a cleaning agent to the dirt of the display screen to be cleaned and pressing and rotating the cleaning agent to perform secondary cleaning on the display screen to be cleaned; the dirt cleaning device is provided with a cleaning agent nozzle used for spraying cleaning agent to the display screen to be cleaned;

the air inlet is arranged at the top of the dust-free box body, comprises a dust filtering cotton net and a plurality of electrostatic dust removal devices and is used for filtering and adsorbing dust in the air entering the dust-free box body;

a central control unit which is respectively connected with the conveying device, the cleaning roller set, the exhaust fan, the image acquisition device, the adjustable illumination device and the dirt cleaning device and is used for correspondingly adjusting the relevant devices according to the primary dirt information and the secondary dirt information, wherein,

the central control unit correspondingly adjusts the relevant device according to the primary dirt information, and comprises the following steps: the central control unit adjusts the shooting period of the first image acquisition device according to the maximum value and the minimum value of the number of the dirt areas in the primary dirt image acquired by the first image acquisition device under the condition that the first image acquisition is finished, and judges whether to adjust the rotating speed of the adjustable illumination device or not according to the maximum value and the minimum value of the number of the dirt areas in the primary dirt image after the shooting period is adjusted, and when the judgment that whether the rotating speed of the adjustable illumination device is adjusted or not is finished, the central control unit judges the detergent dosage of the dirt cleaning device according to the comparison result of the total area of the dirt of the display screen to be cleaned and a preset standard;

the central control unit correspondingly adjusts the relevant devices according to the secondary dirt information, and comprises the following steps: the central control unit judges whether to adjust the using amount of the cleaning agent or not according to a comparison result of a difference value between the total dirt area of the cleaned display screen to be cleaned and the total dirt area in the primary dirt information and a preset dirt area difference value under a second image acquisition completion condition, and judges how to adjust the pressure of the dirt cleaning device according to the total dirt area of the cleaned display screen to be cleaned;

the display unit is connected with the central control unit and used for receiving the judgment information of the central control unit;

the first image acquisition completing condition is that the adjustable illumination device provides a first shooting light source and the primary dirt image acquisition is completed, and the second image acquisition completing condition is that the adjustable illumination device provides a second shooting light source and the secondary dirt image acquisition is completed.

Further, the central control unit controls a weight detection device in the conveying device to detect the weight M of the display screen to be cleaned under a first preset condition and compares the weight M with a preset weight standard to determine the conveying speed V of the conveying device; the central control unit is provided with a first preset weight standard M1, a second preset weight standard M2, a preset standard conveying speed V0, a first speed compensation coefficient alpha 1 and a second speed compensation coefficient alpha 2, wherein M1 is more than 0 and less than M2, V0 is more than 0, alpha 1 is more than 0 and less than 1 and less than alpha 2,

if M is less than or equal to M1, the central control unit judges that the weight of the display screen to be cleaned is lower than a preset range and sets V = V0 multiplied by alpha 1;

if M1 is larger than M and smaller than or equal to M2, the central control unit judges that the weight of the display screen to be cleaned meets a preset range, and sets V = V0;

if M2 is less than M, the central control unit judges that the weight of the display screen to be cleaned is higher than a preset range and sets V = V0 multiplied by alpha 2;

the first preset condition is that the weight detection device in the conveying device detects that the weight M is larger than 0;

the central control unit controls the cleaning roller set to clean the display screen to be cleaned once when the conveying speed of the conveying device is set, wherein the movement direction of the first cleaning roller is opposite to the conveying direction of the conveying device; the two ends of the cleaning roller set are connected with the inner wall of the dust-free box body in a sliding mode.

Further, the central control unit controls the adjustable illumination device to illuminate the display screen to be cleaned at a preset angle and controls the first image acquisition device to periodically acquire images of the display screen to be cleaned in a first shooting period to acquire primary dirt images, and the central control unit analyzes and processes the primary dirt images acquired by the first image acquisition device to confirm primary dirt information of the display screen to be cleaned, wherein the primary dirt information comprises total dirt area, dirt position coordinates and dirt area number; the adjustable illumination device is connected with the top or the side wall of the dust-free box body in a sliding mode, and the central control unit controls the adjustable illumination device to slide or rotate so as to change the illumination angle of the adjustable illumination device.

Further, the central control unit sequentially extracts the primary dirt images acquired by the first image acquisition device under a second preset condition, calculates a dirt area number difference value Δ N according to a dirt area number maximum value Nmax and a dirt area number minimum value Nmin in the primary dirt images, and compares the Δ N with a preset dirt area number difference standard to judge whether to adjust a first shooting period D, wherein Δ N = Nmax-Nmin, and D = As; the central control unit is provided with a first preset dirt area quantity difference standard delta N1, a second preset dirt area quantity difference standard delta N2, a first shooting period adjusting coefficient gamma 1 and a second shooting period adjusting coefficient gamma 2, wherein the delta N1 is more than 0 and less than the delta N2, the gamma 1 is more than 0 and less than gamma 2 and less than 1, A =2s,

if delta N2 is less than delta N, the central control unit judges that the first shooting period does not need to be adjusted;

if the delta N1 is less than the delta N and less than or equal to the delta N2, the central control unit judges that gamma 2 is used for adjusting the first shooting period D, the adjusted first shooting period is recorded as D ', and the first image acquisition device is controlled to adopt the adjusted first shooting period D ' to reacquire a primary dirt image of the display screen needing to be cleaned when the adjustable illumination device operates, and the setting is D ' = A multiplied by gamma 2;

if the delta N is less than or equal to the delta N1, the central control unit judges that the gamma 1 is used for adjusting the first shooting period D, and controls the first image acquisition device to adopt the adjusted first shooting period D 'to reacquire a dirt image of the display screen needing to be cleaned when the adjustable illumination device operates, and the setting is that D' = A multiplied by gamma 1;

the second preset condition is that the central control unit analyzes and processes each primary dirt image acquired by the first image acquisition device and confirms that the primary dirt information is completed.

Further, the central control unit re-extracts a dirt recapture image acquired by the first image acquisition device in the adjusted first shooting period D 'under a third preset condition, and the central control unit calculates an adjusted dirt area quantity difference value Δ N' according to a dirt area quantity maximum value Nmax 'and a dirt area quantity minimum value Nmin' in the dirt recaptured image, compares the Δ N 'with a preset dirt area quantity difference standard again to determine whether to adjust the rotation speed V of the adjustable illumination device, and sets that Δ N' =Δnmax '-. DELTA Nmin'; the central control unit is provided with an initial rotating speed V0, a first speed adjusting coefficient omega 1 and a second speed adjusting coefficient omega 2, wherein, V0 is more than 0, omega 1 is more than 0 and more than omega 2 is less than 1,

if the delta N2 is less than the delta N', the central control unit judges that the quantity difference value of the dirt areas after adjustment meets the standard and does not need to adjust the rotating speed V of the illumination device;

if the delta N1 is less than the delta N ' and less than or equal to the delta N2, the central control unit judges that the difference value of the number of the dirt areas after adjustment does not meet the standard, and adjusts the rotating speed V of the illumination device by using omega 2, and the adjusted rotating speed is recorded as V ', and is set to be V ' = V0 multiplied by omega 2;

if the delta N ' is less than or equal to the delta N1, the central control unit judges that the number difference value of the dirt areas after adjustment does not meet the standard, and adjusts the rotating speed V of the illumination device by using omega 1, the rotating speed after adjustment is recorded as V ', and V ' = V0 multiplied by omega 1 is set;

and the third preset condition is that the central control unit controls the first image acquisition device to adopt the adjusted first shooting period D' to reacquire the once dirt retake image of the display screen needing to be cleaned when the adjustable illumination device runs, so as to finish the process.

Further, the central control unit compares the total dirt area S of the display screen to be cleaned with a preset total dirt area standard under a fourth preset condition to judge the detergent dosage of the dirt cleaning device; the central control unit is provided with a first preset dirt total area standard S1, a second preset dirt total area standard S2, a preset standard detergent dosage G0, a first detergent dosage compensation coefficient delta 1 and a second detergent dosage compensation coefficient delta 2, wherein S1 is more than 0 and less than S2, G0 is more than 0, delta 1 is more than 1 and less than delta 2,

if S is less than or equal to S1, the central control unit judges that the total dirt area S of the display screen to be cleaned meets a preset standard and sets the dosage of the cleaning agent as G, and the dosage is set to G = G0;

if S1 is larger than S1 and smaller than or equal to S2, the central control unit judges that the total dirt area S of the display screen to be cleaned does not meet a preset standard, and adjusts the detergent dosage G by adopting the second detergent dosage compensation coefficient delta 1, and the dosage G = G0 multiplied by delta 1;

if S2 is less than S, the central control unit judges that the total dirt area S of the display screen to be cleaned does not meet a preset standard, and adjusts the detergent dosage G by adopting the first detergent dosage compensation coefficient delta 2, and the dosage G = G0 multiplied by delta 2 is set;

the fourth preset condition is that the central control unit completes the rotation speed adjustment judgment of the adjustable illumination device.

Further, the central control unit controls the dirt cleaning device to perform secondary cleaning on the display screen to be cleaned under a fifth preset condition, and confirms secondary dirt information of the display screen to be cleaned according to a secondary dirt image of the display screen acquired by the second image acquisition device when the secondary cleaning is completed, wherein the secondary dirt information comprises the total dirt area after cleaning, dirt position coordinates and the dirt area number, the central control unit calculates a dirt area difference value deltaS according to the total dirt area S 'after cleaning and the total dirt area S in the primary dirt information and compares the deltaS with a preset dirt area difference value to judge whether the detergent dosage is adjusted, and the deltaS = S-S'; the central control unit is provided with a first preset dirt area difference standard delta S1, a second preset dirt area difference standard delta S2, a third cleaner dosage compensation coefficient delta 3 and a fourth cleaner dosage compensation coefficient delta 4, wherein the delta S1 is more than 0 and less than the delta S2 and less than S, the delta 3 is more than 1 and less than delta 4,

if the delta S is less than or equal to the delta S1 and the S ' is more than 0, the central control unit judges that the dirt area difference value does not meet the standard and adjusts the detergent dosage G by using delta 4, and the adjusted detergent dosage is recorded as G ', and G ' = G multiplied by delta 4 is set;

if delta S1 is less than delta S and less than or equal to delta S2, the central control unit judges that the dirt area difference value does not meet the standard and adjusts the detergent dosage G by using delta 4, and the setting is that G' = G multiplied by delta 3;

if delta S2 is less than delta S, the central control unit judges that the dirt area difference value meets the standard and further judges whether the cleaning of the display screen to be cleaned is finished according to S', wherein,

if S' =0, the central control unit judges that the display screen needing to be cleaned is cleaned;

if S' > 0, the central control unit judges that the display screen needing to be cleaned is not cleaned;

the fifth preset condition is that the central control unit finishes judging the using amount of the cleaning agent of the dirt cleaning device.

Further, the central control unit compares the S' with a preset adjusted total dirt area standard under a sixth preset condition to determine how to adjust the pressure of the dirt cleaning device; the central control unit is provided with initial pressure F0 of the dirt cleaning device, a first preset adjusted dirt total area S1', a second preset adjusted dirt total area S2', a first pressure compensation coefficient epsilon 1, a second pressure compensation coefficient epsilon 2 and a third pressure compensation coefficient epsilon 3, wherein, F0 is more than 0, S1' is more than 0 ' < S2',1 < epsilon 2 < epsilon 3 < epsilon 2,

if S 'is less than or equal to S1', the central control unit determines that the pressure F of the dirt cleaning device is adjusted using e 3, set to F = F0 × e 3;

if S1' < S ' ≦ S2', the central control unit determines to adjust the pressure F of the dirt cleaning apparatus using ∈ 2, set, F = F0 × ∈ 2;

if S2 '< S', the central control unit determines to adjust the pressure F of the dirt cleaning device using ∈ 1, set F = F0 × ∈ 1;

the sixth preset condition is that the central control unit judges that the display screen needing to be cleaned is not cleaned.

Further, the central control unit controls the dirt cleaning device to perform secondary cleaning on the display screen to be cleaned again by adopting the pressure F under a seventh preset condition, controls the second image acquisition unit to acquire a secondary dirt image and perform analysis processing to reconfirm the total dirt area in the secondary dirt information of the display screen to be cleaned when cleaning is completed, determines that the display screen to be cleaned is cleaned and controls the conveying device to output the display screen to be cleaned to the outside of the dust-free box body if the total dirt area is zero, determines that surface dirt of the display screen to be cleaned after secondary cleaning cannot be cleaned by the central control unit if the total dirt area is not zero, and conveys the determination information and position coordinates corresponding to the total dirt area to the display unit and sends prompting information for prompting manual cleaning;

the seventh preset condition is that the pressure adjustment of the dirt cleaning means is completed and the pressure of the dirt cleaning means is set to F.

Furthermore, the display unit is provided with an audio-visual display screen for displaying the judgment information, the primary fouling information and the secondary fouling information of the central control unit.

Compared with the prior art, the method has the advantages that the problem of inaccurate collection of the surface dirt image of the display screen needing to be cleaned is avoided by actively changing the illumination angle of the display screen needing to be cleaned, the accuracy of collection of the surface dirt information of the screen is improved, and the cleaning effect of the method on the display screen is improved while the cleaning speed of the display screen is ensured.

Furthermore, the central control unit controls the weight detection device in the conveying device to detect the weight M of the display screen to be cleaned under a first preset condition and compares the weight M with a preset weight standard to judge the conveying speed of the conveying device, so that the problem of shaking of the display screen in the conveying process due to the fact that the conveying speed is too high is avoided, the display screen is prevented from being damaged, the cleaning speed of the display screen is guaranteed, and meanwhile the cleaning effect of the cleaning device for the display screen is improved.

Furthermore, the central control unit controls each adjustable illumination device to illuminate the display screen to be cleaned at a preset angle and controls the first image acquisition device to acquire an image of dirt once on the display screen to be cleaned in each first shooting period under a second preset condition, and the plurality of adjustable illumination devices illuminate the display screen at different angles, so that the problem that the image acquisition device is inaccurate in dirt image acquisition on the surface of the screen is solved, the cleaning speed of the display screen is guaranteed, and the cleaning effect of the cleaning device on the display screen is improved.

Furthermore, the central control unit calculates the difference value delta N of the number of the dirt areas according to Nmax and Nmin and compares the delta N with a preset dirt area number difference standard to judge whether to adjust the first shooting period D, so that the problem that the dirt image on the surface of the screen is not accurately collected by the image collecting device due to the fact that the shooting period is too long is solved, the cleaning speed of the display screen is guaranteed, and meanwhile the cleaning effect of the cleaning device for the display screen is improved.

Furthermore, the central control unit calculates the difference value delta N 'of the number of the dirt areas after adjustment according to Nmax' and Nmin 'and compares the delta N' with the preset dirt area number difference standard again to judge whether to adjust the rotating speed V of the adjustable illumination device, so that the problem that the adjustment of the first shooting period is invalid due to the fact that the rotating speed of the adjustable illumination device is too high is solved, the accuracy of the image acquisition device for acquiring the dirt images on the surface of the screen is improved, the cleaning speed of the display screen is guaranteed, and meanwhile the cleaning effect of the display screen is improved.

Furthermore, the central control unit compares the total dirt area S of the display screen to be cleaned with a preset total dirt area standard under a fifth preset condition to judge the detergent dosage of the dirt cleaning device, and determines the detergent dosage according to the dirt area, so that the problem of detergent dosage waste is solved, the problem of detergent splashing in the cleaning process due to excessive detergent dosage is solved, the cleaning speed of the display screen is ensured, and the cleaning effect of the display screen is improved.

Drawings

FIG. 1 is a schematic structural diagram of an intelligent display screen cleaning system according to an embodiment of the invention;

FIG. 2 is a flowchart illustrating the central control unit comparing M with a predetermined weight standard to determine the transmission speed of the transmission device according to an embodiment of the present invention;

fig. 3 is a flowchart illustrating that the central control unit compares Δ N with a preset dirt area quantity difference standard to determine whether to adjust the first photographing period according to an embodiment of the present invention;

fig. 4 is a flowchart of comparing Δ N' with a predetermined dirt area quantity difference criterion again by the central control unit to determine whether to adjust the rotation speed V of the adjustable illumination apparatus according to the embodiment of the present invention;

fig. 5 is a flowchart illustrating that the central control unit compares the total area of the dirt on the display screen to be cleaned with a preset total dirt area standard to determine the usage amount of the cleaning agent of the dirt cleaning apparatus according to the embodiment of the present invention;

in the figure: dustless box 1, conveyer 2, cleaning roller set 3, exhaust fan 4, first image acquisition device 5, second image acquisition device 6, adjustable illumination device 7, dirt cleaning device 8, air intake 9.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in conjunction with the following examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Fig. 1 is a schematic structural diagram of an intelligent display screen cleaning system according to an embodiment of the present invention, wherein the intelligent display screen cleaning system,

a dust-free box body 1 which is used as a cleaning container for cleaning a display screen;

the conveying device 2 is arranged in the dust-free box body 1, is connected with an inlet and an outlet of the dust-free box body 1, and is used for conveying the display screen to be cleaned to a corresponding cleaning position and outputting the cleaned display screen to the outside of the dust-free box body 1;

the cleaning roller group is arranged in the dust-free box body 1, close to the inlet and above the conveying device 2 and used for cleaning the display screen to be cleaned at one time, the cleaning roller group comprises a first cleaning roller and a second cleaning roller, the first cleaning roller is located below and close to the conveying device 2, the second cleaning roller is located above and far away from the conveying device 2, and the first cleaning roller and the second cleaning roller drive the superfine fiber dust cleaning cloth sleeved on the first cleaning roller and the second cleaning roller to move relative to the display screen to be cleaned so as to clean and adsorb dust on the surface of the display screen to be cleaned;

the exhaust fan 4 is arranged above the cleaning roller set in the dust-free box body 1, is connected with an exhaust port on the dust-free box body 1, and is used for exhausting dust in the dust-free box body 1 by pumping air in the dust-free box body 1;

the image acquisition device comprises a first image acquisition device 5 and a second image acquisition device 6, the first image acquisition device 5 is arranged at the inner top of the dust-free box body 1, is close to the cleaning roller set 3 and is used for acquiring a primary dirt image of the display screen to be cleaned after the display screen is cleaned for the first time, and the second image acquisition device 6 is arranged at the inner top of the dust-free box body 1, is far away from the cleaning roller set 3 and is used for acquiring a secondary dirt image of the display screen to be cleaned after the display screen is cleaned for the second time;

the adjustable illumination device is arranged at the top or the side wall of the dust-free box body 1, comprises a rotatable light source capable of rotating according to a set angle and is used for illuminating the display screen to be cleaned according to the set angle;

a dirt cleaning device 8 which is arranged inside the dust-free box body 1 above the conveying device 2 and is used for spraying cleaning agent to the dirt of the display screen to be cleaned and performing pressing rotation to perform secondary cleaning on the display screen to be cleaned; the dirt cleaning device 8 is provided with a cleaning agent nozzle used for spraying cleaning agent to the display screen to be cleaned;

the air inlet 9 is arranged at the top of the dust-free box body 1, comprises a dust filtering cotton net and a plurality of electrostatic dust removal devices and is used for filtering and adsorbing dust in the air entering the dust-free box body 1;

a central control unit, which is respectively connected with the conveying device 2, the cleaning roller set, the exhaust fan 4, the image acquisition device, the adjustable illumination device and the dirt cleaning device 8, and is used for correspondingly adjusting the relevant devices according to the primary dirt information and the secondary dirt information, wherein,

the central control unit correspondingly adjusts the relevant device according to the primary dirt information, and comprises the following steps: the central control unit adjusts the shooting period of the first image acquisition device 5 according to the maximum value and the minimum value of the number of the dirt areas in the primary dirt image acquired by the first image acquisition device 5 under the condition that the first image acquisition is finished, and judges whether to adjust the rotating speed of the adjustable illumination device or not according to the maximum value and the minimum value of the number of the dirt areas in the primary dirt image after the shooting period is adjusted, and when the judgment that whether the rotating speed of the adjustable illumination device is adjusted or not is finished, the central control unit judges the detergent dosage of the dirt cleaning device 8 according to the comparison result of the total area of the dirt of the display screen needing to be cleaned and a preset standard;

the central control unit correspondingly adjusts the relevant devices according to the secondary dirt information, and comprises the following steps: under the second image acquisition completion condition, the central control unit judges whether to adjust the using amount of the cleaning agent or not according to the comparison result of the difference value between the total dirt area of the cleaned display screen to be cleaned and the total dirt area in the primary dirt information and a preset dirt area difference value, and judges how to adjust the pressure of the dirt cleaning device 8 according to the total dirt area of the cleaned display screen to be cleaned;

the first image acquisition completing condition is that the adjustable illumination device 7 provides a first shooting light source and the primary dirt image acquisition is completed, and the second image acquisition completing condition is that the adjustable illumination device 7 provides a second shooting light source and the secondary dirt image acquisition is completed.

Please refer to fig. 2, which is a flowchart illustrating the central control unit comparing M with a preset weight standard to determine the transmission speed of the transmission device according to an embodiment of the present invention, wherein the central control unit controls the weight detection device in the transmission device 2 to detect the weight M of the display screen to be cleaned under a first preset condition and compares M with the preset weight standard to determine the transmission speed V of the transmission device 2; the central control unit is provided with a first preset weight standard M1, a second preset weight standard M2, a preset standard conveying speed V0, a first speed compensation coefficient alpha 1 and a second speed compensation coefficient alpha 2, wherein M1=5kg, M2=15kg, V0=3cm/s, alpha 1=0.8, alpha 2=1.2,

the first preset condition is that the weight detecting device in the conveying device 2 detects that the weight M is more than 0;

the central control unit controls the cleaning roller group 3 to clean the display screen to be cleaned once when the conveying speed of the conveying device 2 is set, wherein the moving direction of the first cleaning roller is opposite to the conveying direction of the conveying device 2; and two ends of the cleaning roller set 3 are in sliding connection with the inner wall of the dust-free box body 1.

Specifically, the central control unit controls the adjustable illumination device to illuminate the display screen to be cleaned at a preset angle and controls the first image acquisition device 5 to periodically acquire an image of the display screen to be cleaned in a first shooting period to acquire a primary dirt image, and the central control unit analyzes and processes each primary dirt image acquired by the first image acquisition device 5 to determine primary dirt information of the display screen to be cleaned, wherein the primary dirt information comprises a total dirt area, a dirt position coordinate and a dirt area number; the adjustable illumination device is connected with the top or the side wall of the dust-free box body 1 in a sliding mode, and the central control unit controls the adjustable illumination device to slide or rotate so as to change the illumination angle of the adjustable illumination device.

Please refer to fig. 3, which is a flowchart illustrating that the central control unit compares Δ N with a preset dirt area number difference standard to determine whether to adjust the first shooting period according to an embodiment of the present invention, the central control unit sequentially extracts the dirt images acquired by the first image acquisition device 5 under a second preset condition, and the central control unit calculates the dirt area number difference Δ N according to the maximum dirt area number Nmax and the minimum dirt area number Nmin the dirt images and compares Δ N with the preset dirt area number difference standard to determine whether to adjust the first shooting period D, where Δ N = Nmax-Nmin and D = As; the central control unit is provided with a first preset fouling area number difference standard delta N1, a second preset fouling area number difference standard delta N2, a first shooting period adjusting coefficient gamma 1 and a second shooting period adjusting coefficient gamma 2, wherein delta N1=3, delta N2=6, gamma 1=0.6, gamma 2=0.8, A =2s,

if the delta N1 is less than the delta N and less than or equal to the delta N2, the central control unit judges that the gamma 2 is used for adjusting the first shooting period D, the adjusted first shooting period is recorded as D ', and the first image acquisition device 5 is controlled to adopt the adjusted first shooting period D ' to reacquire a primary dirt image of the display screen to be cleaned when the adjustable illumination device operates, and the setting is that D ' = A multiplied by gamma 2;

if the Δ N is less than or equal to Δ N1, the central control unit determines to adjust the first shooting period D by using γ 1, and controls the first image acquisition device 5 to reacquire a dirt image of the display screen to be cleaned when the adjustable illumination device operates by using the adjusted first shooting period D ', and sets that D' = a × γ 1;

the second preset condition is that the central control unit analyzes and processes each primary dirt image acquired by the first image acquisition device 5 and confirms that the primary dirt information is completed.

Please refer to fig. 4, which is a flowchart illustrating that the central control unit compares Δ N ' with a preset dirt area quantity difference standard again to determine whether to adjust the rotation speed V of the adjustable illumination apparatus according to an embodiment of the present invention, the central control unit re-extracts a dirt recapture image acquired by the first image acquisition device 5 in the adjusted first capture period D ' under a third preset condition, and the central control unit calculates an adjusted dirt area quantity difference Δ N ' according to a maximum dirt area quantity Nmax ' and a minimum dirt area quantity Nmin ' in the dirt recapture image and compares Δ N ' with the preset dirt area quantity difference standard again to determine whether to adjust the rotation speed V of the adjustable illumination apparatus, and sets Δ N ' =Δnmax ' - [ Δ Nmin '; the central control unit is provided with an initial rotation speed V0, a first speed adjustment coefficient Ω 1, and a second speed adjustment coefficient Ω 2, wherein V0=10 °/s, Ω 1=0.65, Ω 2=0.85,

the third preset condition is that the central control unit controls the first image acquisition device 5 to adopt the adjusted first shooting period D' to reacquire a dirt retake image of the display screen to be cleaned when the adjustable illumination device operates, and the process is completed.

Please refer to fig. 5, which is a flowchart illustrating a process of determining a detergent usage amount of the cleaning device by comparing a total dirty area of the display screen to be cleaned with a preset total dirty area standard by the central control unit according to an embodiment of the present invention, wherein the central control unit determines the detergent usage amount of the cleaning device 8 by comparing a total dirty area S of the display screen to be cleaned with the preset total dirty area standard under a fourth preset condition; the central control unit is provided with a first preset total fouling area criterion S1, a second preset total fouling area criterion S2, a preset criterion detergent dosage G0, a first detergent dosage compensation factor δ 1 and a second detergent dosage compensation factor δ 2, wherein S1=5cm, S2=10cm, G0=10ml, δ 1=1.2, δ 2=1.4,

if S1 is larger than S1 and is not larger than S2, the central control unit judges that the total dirt area S of the display screen to be cleaned does not meet a preset standard, and adjusts the dosage G of the cleaning agent by adopting the second cleaning agent dosage compensation coefficient delta 1, and the dosage G = G0 multiplied by delta 1;

if S2 is less than S, the central control unit judges that the total dirt area S of the display screen to be cleaned does not meet a preset standard and adjusts the detergent dosage G by adopting the first detergent dosage compensation coefficient delta 2, and the dosage G = G0 multiplied by delta 2 is set;

Continuing to refer to fig. 1 to 5, the central control unit controls the dirt cleaning device 8 to perform secondary cleaning on the display screen to be cleaned under a fifth preset condition, and determines secondary dirt information of the display screen to be cleaned according to a secondary dirt image of the display screen acquired by the second image acquisition device 6 when the secondary cleaning is completed, where the secondary dirt information includes a total dirt area after cleaning, a dirt position coordinate, and a dirt area number, and the central control unit calculates a dirt area difference Δ S according to the total dirt area S 'after cleaning and a total dirt area S in the primary dirt information and compares the Δ S with a preset dirt area difference to determine whether to adjust the detergent usage, and sets S Δ = S-S'; the central control unit is provided with a first preset dirt area difference standard delta S1, a second preset dirt area difference standard delta S2, a third cleaner dosage compensation coefficient delta 3 and a fourth cleaner dosage compensation coefficient delta 4, wherein the delta S1 is more than 0 and less than the delta S2 and less than S, the delta 3 is more than 1 and less than delta 4,

if the delta S is less than or equal to the delta S1 and S ' is greater than 0, the central control unit judges that the dirt area difference value does not meet the standard and adjusts the detergent dosage G by using delta 4, and the adjusted detergent dosage is recorded as G ', and G ' = G multiplied by delta 4;

if delta S1 is less than delta S and less than or equal to delta S2, the central control unit judges that the dirt area difference value does not meet the standard and adjusts the detergent dosage G by delta 4, and the setting is that G' = G multiplied by delta 3;

if S 'is greater than 0, the central control unit judges that the display screen to be cleaned is not cleaned and adjusts the pressure of the dirt cleaning device 8 according to the comparison result of S' and the preset adjusted total dirt area standard;

the fifth preset condition is that the central control unit determines that the detergent dosage of the dirt cleaning device 8 is finished.

Specifically, the central control unit compares S' with a preset adjusted total dirt area standard under a sixth preset condition to determine how to adjust the pressure of the dirt cleaning device 8; the central control unit is provided with an initial pressure F0 of the dirt cleaning device 8, a first preset post-adjustment dirt total area S1', a second preset post-adjustment dirt total area S2', a first pressure compensation coefficient e 1, a second pressure compensation coefficient e 2 and a third pressure compensation coefficient e 3, wherein F0=100n, S1'=1cm, S2' =8cm, e 1=1.2, e 2=1.4,

if S 'is ≦ S1', the central control unit decides to adjust the pressure F of the dirt cleaning means 8 with e 3, set, F = F0 × e 3;

if S1' < S ' ≦ S2', the central control unit determines to adjust the pressure F of the dirt cleaning means 8 using ∈ 2, set, F = F0 × ∈ 2;

if S2 '< S', the central control unit determines that the pressure F of the dirt cleaning device 8 is adjusted using ∈ 1, set F = F0 × ∈ 1;

Specifically, the central control unit controls the dirt cleaning device 8 to perform secondary cleaning on the display screen to be cleaned again by using the pressure F under a seventh preset condition, controls the second image acquisition unit to acquire a secondary dirt image and perform analysis processing to reconfirm the total dirt area in the secondary dirt information of the display screen to be cleaned when the cleaning is completed, determines that the cleaning of the display screen to be cleaned is completed and controls the conveying device 2 to output the display screen to be cleaned to the outside of the dust-free box body 1 if the total dirt area is zero, determines that the surface dirt of the display screen to be cleaned after the secondary cleaning cannot be cleaned by the central control unit if the total dirt area is not zero, and conveys the determination information and position coordinates corresponding to the total dirt area to the display unit and sends out prompting information for prompting manual cleaning;

the seventh preset condition is that the pressure adjustment of the dirt cleaning device 8 is completed and the pressure of the dirt cleaning device 8 is set to F.

Specifically, the display unit is provided with an audio-visual display screen for displaying the judgment information, the primary fouling information and the secondary fouling information of the central control unit.

Specifically, the dust-free box 1 may be provided with a mechanical arm slidably connected to an inner side wall thereof, so as to fix the large display screen when the large display screen is cleaned.

Specifically, the user can actively set specific parameters of a preset standard of the intelligent display screen cleaning system through the audio-video display device so as to adapt to cleaning of display screens with different sizes.

Example 1

In this embodiment, the weight detecting device detects that the weight of the display screen to be cleaned is M =8kg, at this time, M1 is greater than M and less than M2, the central control unit determines that the weight of the display screen to be cleaned meets a preset range and sets the conveying speed of the conveying device 2 to be V =3cm/s; in this embodiment, the central control unit sequentially extracts, under a third preset condition, a dirt image acquired by the first image acquisition device 5 when the adjustable illumination device is running, and extracts a dirt area maximum Nmax and a dirt area minimum Nmin in all the dirt images, where Nmax =6, nmin =1, and at this time, Δ N =5, and at this time, Δ N1 < [ Δ N > Δ N2, the central control unit determines to adjust the first shooting period D using γ 2, records the adjusted first shooting period as D 'and controls the first image acquisition device 5 to reacquire a dirt image of the display screen to be cleaned when the adjustable illumination device is running, setting that D' =3 × 0.8=1.6s, under a fourth preset condition, the central control unit re-extracts the primary dirt images acquired by the first image acquisition device 5 when the adjustable illumination device is operated and re-extracts the maximum value Nmax 'of the number of dirt areas and the minimum value Nmin' of the number of dirt areas in all the primary dirt images, where Nmax =8, nmin =1, and in this case, Δ N '=7, and in this case, Δ N' >. Δ N2, and the central control unit determines that the difference in the number of dirt areas after adjustment meets the criterion and does not need to adjust the rotation speed V of the illumination device.

Example 2

In this embodiment, the central control unit analyzes and detects that the total dirt area S =6cm of the display screen to be cleaned according to the primary dirt image processing acquired by the first image acquisition device 5, at this time, S1 < S2, the central control unit determines that the total dirt area S of the display screen to be cleaned does not meet a preset standard and sets the detergent usage amount to G =10 × 1.2=12ml, the central control unit controls the dirt cleaning device 8 to perform secondary cleaning on the display screen to be cleaned and controls the second image acquisition device 6 to acquire and analyze a secondary dirt image of the display screen when the secondary cleaning is completed so as to confirm screen surface secondary dirt information, and the total dirt area S' =0 of the cleaned screen, and the central control unit determines that the display screen to be cleaned is completed.

Example 3

In this embodiment, it is preferable that the rotating light source of the adjustable lighting device 7 rotates from the starting position to the ending position for 20s, and the rotating angle is 60 °.

In this embodiment, it is preferable that the length of the rotation of the adjustable illumination device 7 from the start position to the end position is 10 times of the first photographing period, that is, the first photographing period is to photograph one image every 2 s.

So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a clean system of intelligent display screen which characterized in that includes:

the conveying device is arranged in the dust-free box body, is connected with an inlet and an outlet of the dust-free box body, and is used for conveying the display screen to be cleaned to a corresponding cleaning position and outputting the cleaned display screen to the outside of the dust-free box body;

the adjustable illumination device is arranged at the top or the side wall of the dust-free box body, comprises a rotatable light source which can rotate according to a set angle and is used for illuminating the display screen to be cleaned according to the set angle;

the dirt cleaning device is arranged in the dust-free box body above the conveying device and used for spraying a cleaning agent to the dirt of the display screen to be cleaned and performing pressing rotation to perform secondary cleaning on the display screen to be cleaned; the dirt cleaning device is provided with a cleaning agent nozzle used for spraying cleaning agent to the display screen to be cleaned;

the first image acquisition completing condition is that the adjustable illumination device provides a first shooting light source and the first dirt image acquisition is completed, and the second image acquisition completing condition is that the adjustable illumination device provides a second shooting light source and the second dirt image acquisition is completed.

2. The intelligent display screen cleaning system according to claim 1, wherein the central control unit controls the weight detection device in the conveying device to detect the weight M of the display screen to be cleaned under a first preset condition and compares M with a preset weight standard to determine the conveying speed V of the conveying device; the central control unit is provided with a first preset weight standard M1, a second preset weight standard M2, a preset standard conveying speed V0, a first speed compensation coefficient alpha 1 and a second speed compensation coefficient alpha 2, wherein M1 is more than 0 and less than M2, V0 is more than 0, alpha 1 is more than 0 and less than 1 and less than alpha 2,

if M1 is larger than M and is smaller than or equal to M2, the central control unit judges that the weight of the display screen to be cleaned meets a preset range, and sets V = V0;

the central control unit controls the cleaning roller group to clean the display screen to be cleaned for one time when the conveying speed of the conveying device is set, and the movement direction of the first cleaning roller is opposite to the conveying direction of the conveying device; the two ends of the cleaning roller set are connected with the inner wall of the dust-free box body in a sliding mode.

3. The intelligent display screen cleaning system according to claim 2, wherein the central control unit controls the adjustable illumination device to illuminate the display screen to be cleaned at a preset angle and controls the first image acquisition device to periodically perform one-time image acquisition on the display screen to be cleaned in a first shooting period to acquire the one-time dirt image, and the central control unit performs analysis processing on each one-time dirt image acquired by the first image acquisition device to confirm one-time dirt information of the display screen to be cleaned, wherein the one-time dirt information includes a total dirt area, a dirt position coordinate and a dirt area number; the adjustable illumination device is connected with the top or the side wall of the dust-free box body in a sliding mode, and the central control unit controls the adjustable illumination device to slide or rotate so as to change the illumination angle of the adjustable illumination device.

4. The intelligent display screen cleaning system As claimed in claim 3, wherein the central control unit sequentially extracts the primary dirt images acquired by the first image acquisition device under a second preset condition, and the central control unit calculates a dirt area number difference Δ N according to a maximum dirt area number Nmax and a minimum dirt area number Nmin in the primary dirt images and compares Δ N with a preset dirt area number difference standard to determine whether to adjust the first shooting period D, where Δ N = Nmax-Nmin and D = As; the central control unit is provided with a first preset dirt area quantity difference standard delta N1, a second preset dirt area quantity difference standard delta N2, a first shooting period adjusting coefficient gamma 1 and a second shooting period adjusting coefficient gamma 2, wherein the delta N1 is more than 0 and less than the delta N2, the gamma 1 is more than 0 and less than gamma 2 and less than 1, A =2s,

if the delta N is less than or equal to the delta N1, the central control unit judges that the gamma 1 is used for adjusting the first shooting period D, and controls the first image acquisition device to adopt the adjusted first shooting period D 'to acquire a dirt image of the display screen needing to be cleaned when the adjustable illumination device operates again, and the setting is that D' = A multiplied by gamma 1;

5. The intelligent display screen cleaning system according to claim 4, wherein the central control unit re-extracts a dirt recapture image acquired by the first image acquisition device in the adjusted first shooting period D 'under a third preset condition, and the central control unit calculates an adjusted dirt area quantity difference Δ N' according to a dirt area quantity maximum value Nmax 'and a dirt area quantity minimum value Nmin' in the dirt recapture image and compares Δ N 'with a preset dirt area quantity difference standard again to determine whether to adjust the rotation speed V of the adjustable illumination device, and sets Δ N' =Δnmax '-. Δ Nmin'; the central control unit is provided with an initial rotating speed V0, a first speed adjusting coefficient omega 1 and a second speed adjusting coefficient omega 2, wherein, V0 is more than 0, omega 1 is more than 0 and more than omega 2 is less than 1,

if the delta N1 is less than the delta N ' and less than or equal to the delta N2, the central control unit judges that the difference value of the number of the dirt areas after adjustment does not meet the standard, and adjusts the rotating speed V of the illumination device by using omega 2, the rotating speed after adjustment is recorded as V ', and the V ' = V0 multiplied by omega 2 is set;

if the delta N ' is less than or equal to the delta N1, the central control unit judges that the difference value of the number of the dirt areas after adjustment does not meet the standard and adjusts the rotating speed V of the illumination device by using omega 1, the rotating speed after adjustment is recorded as V ', and V ' = V0 multiplied by omega 1 is set;

6. The intelligent display screen cleaning system according to claim 5, wherein the central control unit compares the total dirt area S of the display screen to be cleaned with a preset total dirt area standard under a fourth preset condition to determine the detergent dosage of the dirt cleaning device; the central control unit is provided with a first preset dirt total area standard S1, a second preset dirt total area standard S2, a preset standard detergent dosage G0, a first detergent dosage compensation coefficient delta 1 and a second detergent dosage compensation coefficient delta 2, wherein S1 is more than 0 and less than S2, G0 is more than 0, delta 1 is more than 1 and less than delta 2,

7. The intelligent display screen cleaning system according to claim 6, wherein the central control unit controls the dirt cleaning device to perform secondary cleaning on the display screen to be cleaned under a fifth preset condition and confirms secondary dirt information of the display screen to be cleaned according to a secondary dirt image of the display screen acquired by the second image acquisition device when the secondary cleaning is completed, wherein the secondary dirt information includes a total dirt area after cleaning, a dirt position coordinate and a dirt area number, the central control unit calculates a dirt area difference Δ S according to the total dirt area S 'after cleaning and a total dirt area S in the primary dirt information and compares the Δ S with a preset dirt area difference to determine whether to adjust the detergent usage, and Δ S = S-S'; the central control unit is provided with a first preset dirt area difference standard delta S1, a second preset dirt area difference standard delta S2, a third cleaner dosage compensation coefficient delta 3 and a fourth cleaner dosage compensation coefficient delta 4, wherein the delta S1 is more than 0 and less than the delta S2 and less than S, the delta 3 is more than 1 and less than delta 4,

if S' is greater than 0, the central control unit judges that the display screen needing to be cleaned is not cleaned;

the fifth preset condition is that the central control unit judges that the detergent dosage of the dirt cleaning device is finished.

8. The intelligent display screen cleaning system according to claim 7, wherein the central control unit compares S' with a preset adjusted total dirt area standard under a sixth preset condition to determine how to adjust the pressure of the dirt cleaning device; the central control unit is provided with initial pressure F0 of the dirt cleaning device, a first preset adjusted dirt total area S1', a second preset adjusted dirt total area S2', a first pressure compensation coefficient epsilon 1, a second pressure compensation coefficient epsilon 2 and a third pressure compensation coefficient epsilon 3, wherein, F0 is more than 0, S1' is more than 0 ' < S2',1 < epsilon 2 < epsilon 3 < epsilon 2,

if S '≦ S1', the central control unit determines to adjust the pressure F of the dirt cleaning apparatus using ∈ 3, set, F = F0 × ∈ 3;

if S2 '< S', the central control unit determines to adjust the pressure F of the dirt cleaning device using e 1, set F = F0 × e 1;

9. The intelligent display screen cleaning system according to claim 8, wherein the central control unit controls the dirt cleaning device to perform secondary cleaning on the display screen to be cleaned again by using the pressure F under a seventh preset condition, controls the second image acquisition unit to acquire a secondary dirt image and perform analysis processing to reconfirm a total dirt area in secondary dirt information of the display screen to be cleaned when the cleaning is completed, determines that the display screen to be cleaned is cleaned and controls the transmission device to output the display screen to be cleaned to the outside of the dust-free box body if the total dirt area is zero, determines that the surface dirt of the display screen to be cleaned after the secondary cleaning cannot be cleaned by the central control unit if the total dirt area is not zero, and transmits the determination information and a position coordinate corresponding to the total dirt area to the display unit and sends a prompting message for prompting manual cleaning;

10. The intelligent display screen cleaning system as claimed in claim 9, wherein the display unit is provided with a video display screen for displaying the determination information, the primary fouling information and the secondary fouling information of the central control unit.