LED Display Cleaning Device and Its Cleaning Method

Abstract

The present invention relates to an LED display cleaning device and a cleaning method thereof. The LED display cleaning device includes a cleaning component, a drone, and a control system. The cleaning component includes a water storage container, a water outlet device, and a cleaning member. The water storage container is used to store the cleaning liquid. The water storage container is connected to the water outlet device so that the water outlet device can spray the cleaning liquid on the surface to be cleaned. The cleaning member is arranged around the water outlet device so that the cleaning member contacts and cleans the surface to be cleaned sprayed with the cleaning liquid. The cleaning component is fixedly installed on the drone. The control system includes a flight control system and a cleaning control system. The drone is communicatively connected to the flight control system, and the cleaning component is communicatively connected to the cleaning control system. With such a setting, the LED display cleaning device can replace manual cleaning operations, avoiding the activity limitation of the external water pipe on the LED display cleaning operation, realizing convenient and safe LED display cleaning operations, and meeting the high-frequency regular cleaning requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen cleaning, and particularly to an LED display screen cleaning device and a cleaning method thereof. Background Art

[0002] Due to the large distance between the lamp beads and the design of the mask structure with a brim in the LED display screen, the surface of the display screen is uneven and prone to accumulating dust and other particulate matters, resulting in a decrease in the contrast of the display screen. Therefore, the LED display screen often needs to be cleaned regularly. However, the conventional cleaning method is that the operator stands on a maintenance platform or a lift truck to perform the cleaning operation, or is suspended from the top of the building for cleaning. When the position of the screen body is not high, the cleaning water can be delivered to the cleaning position through a long water pipe, but when the screen body is located at a high altitude, a water bucket needs to be used to carry the cleaning water. In addition, cleaning tools such as cleaning agents and cleaning brushes need to be carried during the operation process. Therefore, the conventional cleaning method is cumbersome, time-consuming, requires professional operators to perform the cleaning operation, has a high maintenance cost, and is not very safe. Summary of the Invention

[0003] Based on this, it is necessary to provide an LED display screen cleaning device, aiming to realize the convenient and safe cleaning operation of the LED display screen through the drone cleaning device.

[0004] To achieve the above object, the present invention provides an LED display screen cleaning device, which includes a cleaning component, a drone, and a control system; wherein,

[0005] The cleaning component includes a water storage container, a water outlet device, and a cleaning member. The water storage container is used for storing the cleaning liquid. The water storage container is connected to the water outlet device so that the water outlet device can spray the cleaning liquid on the surface to be cleaned. The cleaning member is arranged around the water outlet device so that the cleaning member contacts and cleans the surface to be cleaned sprayed with the cleaning liquid;

[0006] The cleaning component is fixedly installed on the drone;

[0007] The control system includes a flight control system and a cleaning control system. The drone is communicatively connected to the flight control system, and the cleaning component is communicatively connected to the cleaning control system.

[0008] Through the above technical solution, the cleaning component fixedly installed on the drone can realize that the LED display screen cleaning device replaces manual labor for cleaning operations. Storing the cleaning liquid in the water storage container avoids the activity limitation of the LED display screen cleaning device caused by external water pipes. The water outlet device cooperating with the cleaning member can effectively clean the wall surface to be cleaned, realizing the convenient and safe cleaning operation of the LED display screen and meeting the high-frequency regular cleaning requirements of the LED display screen.

[0009] In some embodiments of the present invention, the water outlet device includes a water outlet pipe, a water outlet, and a water outlet valve. One end of the water outlet pipe communicates with the water storage container, the other end of the water outlet pipe is connected to the water outlet, the water outlet is a horizontal linear water outlet, and the water outlet valve is arranged on the water outlet pipe and is located between the water storage container and the water outlet.

[0010] Through the above technical solution, the cleaning assembly is provided with a water outlet pipe, so that the water outlet has high installation flexibility, the installation position of the water outlet is adjustable, the opening and closing of the water outlet can be controlled by the water outlet valve, and the water outlet is set as a linear water outlet to spray a linear water curtain, widen the spraying area of the water outlet, and improve the cleaning efficiency of the cleaning assembly.

[0011] In some embodiments of the present invention, the water outlet is arranged in the middle and lower part, the bottom or below the water storage container in the height direction.

[0012] Through the above technical solution, the water outlet is arranged at the bottom of the water storage container in the height direction, there is a height difference between the cleaning liquid in the water storage container and the water outlet, so that the cleaning liquid can be sprayed from the water outlet to the surface to be cleaned under the action of the pressure difference, further enhancing the cleaning effect of the cleaning assembly.

[0013] In some embodiments of the present invention, it further includes a water absorption device. The water absorption device includes a water absorption pipe, a water absorption port, and a negative pressure pump. One end of the water absorption pipe communicates with the water storage container, the other end of the water absorption pipe is connected to the water absorption port, the water absorption port is arranged below the water outlet and the cleaning member, the length of the water absorption pipe extending horizontally is greater than the length of the water outlet pipe extending horizontally, and the negative pressure pump is arranged on the water absorption pipe and is located between the water storage container and the water absorption port.

[0014] Through the above technical solution, the water absorption device can clean the dirty liquid mixture of dust and water left after cleaning. A negative pressure pump is installed on the water absorption pipe, so that when the water absorption port is close to the surface after cleaning, the remaining dirty liquid mixture on the surface is sucked into the water absorption pipe under the action of negative pressure. The length of the water absorption pipe extending horizontally is greater than the length of the water outlet pipe extending horizontally, so that the water absorption port can be closer to the surface to be cleaned relative to the water outlet, ensuring that the water absorption port can clean the dirty liquid mixture in time.

[0015] In some embodiments of the present invention, the water absorption port is made of a flexible material.

[0016] With the above technical solution, since the surface of the LED display screen is uneven, the flight attitude of the drone can be manipulated by the flight control system so that the water suction port presses against the surface to be cleaned with a certain pressure, so that the water suction port of the flexible material can better fit the surface of the LED display screen and form a certain degree of airtight space, so as to cooperate with the negative pressure pump to form a negative pressure and suck the dirty liquid mixture into the water suction pipe.

[0017] In some embodiments of the present invention, a filtering device is further included, and the filtering device is arranged at the connection between the water suction pipe and the water storage container.

[0018] With the above technical solution, the dirty liquid mixture sucked into the water suction pipe can remove dirt such as dust through the filtering device, and flow back into the water storage container to become recyclable cleaning water, so that the LED display screen cleaning device does not need to repeatedly replace the cleaning water back and forth, effectively enhancing the endurance performance of the LED display screen cleaning device.

[0019] In some embodiments of the present invention, the cleaning member is a brush, and the rod portion of the brush near the brush head has a bending structure.

[0020] With the above technical solution, the rod portion of the brush near the brush head has a bending structure, so that the lower part of the bristles can align with the water outlet position of the water curtain sprayed out of the water outlet while the upper part of the bristles will not be blocked by obstacles, which is beneficial to the cleaning work of the brush.

[0021] In some embodiments of the present invention, the flight control system can manipulate the flight attitude of the drone so that the cleaning member presses against the surface to be cleaned with a certain pressure.

[0022] With the above technical solution, the cleaning member pressing against the surface to be cleaned with a certain pressure can effectively counteract the reaction force of the LED display screen on the drone and make the cleaning member have a cleaning force, and can brush off the stubborn dust attached to the surface of the LED display screen.

[0023] In some embodiments of the present invention, the drone includes at least one of the following:

[0024] The drone has a camera, and the camera is used to monitor the LED display screen cleaning device to obtain the surface to be cleaned, and the camera is communicatively connected to the control system;

[0025] The drone has a distance measuring sensor, and the distance measuring sensor is used to measure the distance between the cleaning component and the surface to be cleaned, and the distance measuring sensor is communicatively connected to the control system.

[0026] With the above technical solution, the camera can effectively monitor the operation of the cleaning component, and the ranging sensor can effectively control the distance between the cleaning component and the surface to be cleaned, so that the cleaning member, the water outlet, and the water suction port are all in normal working positions.

[0027] The present invention also provides an LED display cleaning method, which is applied to the above-mentioned LED display cleaning device, and includes the steps of:

[0028] Manipulate the drone to take off and move to the surface to be cleaned;

[0029] Use the cleaning control system to start the cleaning component, control the water outlet device to spray the cleaning liquid on the surface to be cleaned, and at the same time control the cleaning member to contact and clean the surface to be cleaned sprayed with the cleaning liquid;

[0030] Manipulate the drone to fly along a preset trajectory or plan a flight trajectory according to an autonomous cruise algorithm, and continue cleaning until the entire surface to be cleaned is completely cleaned.

[0031] With the above technical solution, during the cleaning operation of the LED display cleaning device, there is no need to manually operate the flight trajectory of the drone throughout the process. The drone can automatically fly and complete the cleaning operation according to the preset flight trajectory and the adaptive cruise algorithm.

[0032] In the technical solution of the present invention, the cleaning component is installed and fixed on the drone, which can enable the LED display cleaning device to replace manual cleaning operations. Storing the cleaning liquid in the water storage container avoids the activity limitation of the LED display cleaning device caused by external water pipes. The water outlet device and the cleaning member can effectively clean the wall surface to be cleaned, realizing convenient and safe LED display cleaning operations, and meeting the high-frequency regular cleaning requirements of the LED display. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of a cleaning operation of an embodiment of the LED display cleaning device of the present invention;

[0034] Figure 2 It is a schematic structural diagram of a first perspective of an embodiment of the LED display cleaning device of the present invention;

[0035] Figure 3 It is a partial schematic diagram of a first perspective of the cleaning component of an embodiment of the LED display cleaning device of the present invention;

[0036] Figure 4 It is a partial schematic diagram of a second perspective of the cleaning component of an embodiment of the LED display cleaning device of the present invention;

[0037] Figure 5Schematic diagram of the movement trajectory of the cleaning operation for an embodiment of the LED display cleaning device of the present invention;

[0038] Figure 6 Flow chart of the cleaning operation for an embodiment of the LED display cleaning device of the present invention.

[0039] Explanation of the reference numerals in the drawings:

[0040] 1000, LED display cleaning device; 100, cleaning component; 110, water storage container; 120, water outlet device; 121, water outlet pipe; 122, water outlet; 123, water outlet valve; 130, cleaning member; 140, water absorption device; 141, water absorption pipe; 142, water absorption port; 143, negative pressure pump; 150, filtration device; 200, drone; 210, camera; 300, LED display; 310, LED display lamp beads; 320, LED display mask.

[0041] The realization, functional characteristics, and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0042] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly defined or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0048] Please refer to Figure 1 , as described in the background art, since the LED display screen 300 has a large spacing between the LED display screen beads 310 and has the LED display screen mask 320, dust is easily accumulated on its surface, resulting in a reduction in the contrast of the display screen. Therefore, it needs to be cleaned regularly. However, the conventional cleaning operation has high maintenance costs and low safety. For this reason, the present invention provides an LED display screen cleaning device 1000, which will be described in detail below with reference to the accompanying drawings.

[0049] Please refer to Figure 1 and Figure 2, the LED display cleaning device 1000 includes a cleaning component 100, a drone 200, and a control system. The cleaning component 100 includes a water storage container 110, a water outlet device 120, and a cleaning member 130. The water storage container 110 is used to store the cleaning liquid. The water storage container 110 is connected to the water outlet device 120 so that the water outlet device 120 can spray the cleaning liquid on the surface to be cleaned. The cleaning member 130 is arranged around the water outlet device 120 so that the cleaning member 130 contacts and cleans the surface to be cleaned sprayed with the cleaning liquid. The water storage container 110 can be a water storage ball, a water tank, or other settings, and no specific limitation is made here. The water outlet device 120 has a channel structure for water outlet and is communicated with the water storage container 110. The cleaning member 130 can be a cleaning tool such as a brush or a sponge, and no specific limitation is made here. The cleaning liquid can be a circuit board cleaner for LED displays and a repair agent for LED displays, etc., and no specific limitation is made here. The circuit board cleaner for LED displays is used to clean dust and dirt, and the repair agent for LED displays is used for polishing and repairing the LED display 300.

[0050] It should be noted that the LED display cleaning device 1000 can also be used for cleaning operations on high-altitude walls such as building facades and glass curtain walls, and no specific limitation is made here. Preferably, the LED display cleaning device 1000 is used for cleaning operations on outdoor LED displays. The cleaning liquid can be clean water, washing water, etc., and no specific limitation is made here.

[0051] The position where the cleaning component 100 is fixedly installed on the drone 200 can be set according to the model and shape of the drone 200, and no specific limitation is made here. It should be noted that please refer to Figures 2 to 4 , in order to reasonably allocate the installation space of the cleaning component 100 on the drone 200, the water storage tank can be arranged in the middle of the drone 200, and the water outlet device 120 and the cleaning component 100 are respectively arranged at the front of the drone 200 through mounting brackets.

[0052] The cleaning component 100 is fixedly installed on the drone 200. The control system includes a flight control system and a cleaning control system. The drone 200 is communicatively connected to the flight control system, and the cleaning component 100 is communicatively connected to the cleaning control system. The drone 200 can be other models such as a rotary-wing drone and a fixed-wing drone, and no specific limitation is made here. Preferably, please refer to Figure 2, the drone 200 is a six-rotor drone. In the above technical solution, the cleaning component 100 is installed and fixed on the drone 200, which enables the LED display cleaning device 1000 to replace manual cleaning operations. Storing the cleaning liquid in the water storage container 110 avoids the activity limitation of the external water pipe on the LED display cleaning device 1000. The water outlet device 120 cooperating with the cleaning part 130 can effectively clean the wall to be cleaned, realizing the convenient and safe cleaning operation of the LED display 300 and meeting the high-frequency regular cleaning requirements of the LED display 300.

[0053] Specifically, please refer to Figure 3 and Figure 4 , the water outlet device 120 includes a water outlet pipe 121, a water outlet 122 and a water outlet valve 123. One end of the water outlet pipe 121 communicates with the water storage container 110, the other end of the water outlet pipe 121 is connected with the water outlet 122, and the water outlet valve 123 is arranged on the water outlet pipe 121 and is located between the water storage container 110 and the water outlet 122. The water outlet 122 can be arranged at other positions such as the middle lower part or the bottom of the water storage container 110 in the height direction, or below the water storage container 110, which is not specifically limited here.

[0054] Preferably, the water outlet 122 is arranged at the bottom of the water storage container 110 in the height direction. Exemplarily, a booster pump can be arranged in the water outlet pipe 121 section to strengthen the pressure of the cleaning liquid sprayed out from the water outlet 122 and enhance the cleaning strength. With such a setting, the cleaning component 100 is provided with the water outlet pipe 121, so that the water outlet 122 has high installation flexibility, the installation position of the water outlet 122 is adjustable, the opening and closing of the water outlet 122 can be controlled by the water outlet valve 123, the water outlet 122 is arranged at the bottom of the water storage container 110 in the height direction, and there is a height difference between the cleaning liquid in the water storage container 110 and the water outlet 122. Therefore, the cleaning liquid can be sprayed out from the water outlet 122 to the surface to be cleaned under the action of the pressure difference, further enhancing the cleaning effect of the cleaning component 100.

[0055] The water outlet 122 can be arranged in other shapes such as circular, rectangular, strip-shaped, etc., which is not specifically limited here. Preferably, the water outlet 122 is a linear water outlet 122. With such a setting, the water outlet 122 is set as a linear water outlet 122, which can spray out a linear water curtain, widen the spraying area of the water outlet 122, and improve the cleaning efficiency of the cleaning component 100.

[0056] Further, please refer to Figure 3 and Figure 4, the cleaning assembly 100 further includes a water suction device 140. The water suction device 140 includes a water suction pipe 141, a water suction port 142, and a negative pressure pump 143. One end of the water suction pipe 141 communicates with the water storage container 110, the other end of the water suction pipe 141 is connected with the water suction port 142, the water suction port 142 is arranged below the water outlet 122 and the cleaning member 130, and the negative pressure pump 143 is arranged on the water suction pipe 141 and is located between the water storage container 110 and the water suction port 142. The negative pressure pump 143 can be an air-liquid mixing pump, a vacuum negative pressure suction pump or other settings, which are not specifically limited herein. Preferably, the negative pressure pump 143 is an air-liquid mixing pump. With such a setting, the water suction device 140 can clean the dirty mixture of dust and water left after cleaning. By installing the negative pressure pump 143 on the water suction pipe 141, when the water suction port 142 is close to the cleaned surface, the residual dirty mixture on the surface is sucked into the water suction pipe 141 under the action of negative pressure, ensuring the cleaning effect of the cleaning assembly 100.

[0057] In view of the uneven surface of the LED display screen 300, the water suction port 142 is preferably made of a flexible material. The flexible material can be other elastomeric materials such as TPE, TPR, silica gel, rubber, etc., which are not specifically limited herein. Preferably, the flexible material is TPE. Through the flight control system, the flight attitude of the drone 200 can be manipulated so that the water suction port 142 presses against the surface to be cleaned with a certain pressure, so that the flexible water suction port 142 can better fit the surface of the LED display screen 300 and form a certain degree of sealed space, so as to cooperate with the negative pressure pump 143 to form a negative pressure and suck the dirty mixture into the water suction pipe 141.

[0058] Furthermore, a filtering device 150 is further included. The filtering device 150 is arranged at the connection between the water suction pipe 141 and the water storage container 110. Exemplarily, the filtering device 150 is composed of a filter paper and a filter screen, which helps to lighten the weight of the LED display screen cleaning device 1000 while ensuring the filtering effect. With such a setting, the dirty mixture sucked by the water suction pipe 141 can remove dirt such as dust through the filtering device 150 and flow back into the water storage container 110 to become recyclable cleaning water, so that the LED display screen cleaning device 1000 does not need to replace the cleaning water back and forth frequently, effectively enhancing the endurance performance of the LED display screen cleaning device 1000.

[0059] Specifically, the cleaning member 130 is a brush. The cleaning member 130 further includes a driving device (not shown in the figure), and the driving device is communicatively connected to the cleaning control system. The brush head of the brush can be set in other shapes such as circular, strip-shaped, and fan-shaped, and no specific limitation is made here. Exemplarily, the brush head of the brush is circularly arranged, and the bristles are spread outwards to form a trumpet shape. The rod portion of the brush near the brush head has a bending structure. For example, the rod portion can be tilted upwards to form this bending structure. The driving device can drive the cleaning member 130 to perform a rotational movement along the axis of the bending structure, improving the cleaning efficiency. The driving method of the driving device can be pneumatic, electric, hydraulic, etc., and no specific limitation is made here. Exemplarily, the driving device can be a driving motor. The rod portion of the brush near the brush head having a bending structure enables the lower part of the bristles to align with the water outlet position of the water curtain sprayed from the water outlet 122 while the upper part of the bristles is not blocked by obstacles, which is beneficial to the cleaning work of the brush.

[0060] Specifically, the flight control system can manipulate the flight attitude of the drone 200 such that the cleaning member 130 presses against the surface to be cleaned with a certain pressure. With such a setting, the cleaning member 130 pressing against the surface to be cleaned with a certain pressure can effectively counteract the reaction force of the LED display screen 300 on the drone 200 and enable the cleaning member 130 to have a cleaning force, capable of brushing off the stubborn dust adhering to the surface of the LED display screen 300.

[0061] Further, please refer to Figure 2 , the drone 200 is provided with a camera 210. The camera 210 is used to monitor the surface to be cleaned by the LED display screen cleaning device 1000, and the camera 210 is communicatively connected to the control system. The drone 200 is provided with a ranging sensor (not shown in the figure). The ranging sensor is used to measure the distance between the cleaning assembly 100 and the surface to be cleaned, and the ranging sensor is communicatively connected to the control system. The ranging method of the ranging sensor can be laser ranging, ultrasonic ranging, infrared ranging, etc., and no specific limitation is made here. Exemplarily, the ranging method of the ranging sensor is laser ranging. With such a setting, the camera 210 can effectively monitor the operation of the cleaning assembly 100, and the ranging sensor can effectively control the distance between the cleaning assembly 100 and the surface to be cleaned, so that the cleaning member 130, the water outlet 122, and the water suction port 142 can all be in normal working positions.

[0062] Please refer to Figure 5 and Figure 6 , the present invention further proposes an LED display screen cleaning method, which is applied to the above-mentioned LED display screen cleaning device 1000, and includes the steps of:

[0063] Manipulate the drone 200 to take off and move to the surface to be cleaned;

[0064] Start the cleaning component 100 using the cleaning control system, control the water outlet device 120 to spray the cleaning liquid on the surface to be cleaned, and at the same time control the cleaning part 130 to contact and clean the surface to be cleaned sprayed with the cleaning liquid;

[0065] Manipulate the drone 200 to fly along a preset trajectory or plan a flight trajectory according to an autonomous cruise algorithm, and continue cleaning until the entire surface to be cleaned is completely cleaned. Preferably, the preset trajectory is an S-shaped trajectory, and the drone 200 cleans row by row from the uppermost end to the lowermost end of the surface to be cleaned along the S-shaped trajectory. The autonomous cruise algorithm can be other settings such as a constant speed cruise algorithm and an adaptive cruise algorithm, which are not specifically defined here. More preferably, the autonomous cruise algorithm is an adaptive cruise algorithm. With such a setting, during the cleaning operation of the LED display cleaning device 1000, there is no need to manually operate the flight trajectory of the drone 200 throughout the process, and the drone 200 can automatically fly and complete the cleaning operation according to the preset flight trajectory and the adaptive cruise algorithm.

[0066] It should be noted that in some other working conditions of cleaning the LED display 300, the water outlet device 120 and the cleaning part 130 can also operate independently. Exemplarily, when the LED display cleaning device 1000 performs a polishing and repair operation on the LED display 300 after completing the operation, the cleaning liquid is an LED display repair agent. At this time, the water outlet device 120 can be independently controlled to spray the LED display repair agent on the surface of the LED display 300.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0068] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0069] The above-described embodiments merely represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent should be subject to the appended claims.

Claims

1. An LED display cleaning device, characterized in that, The described LED display cleaning device includes: A cleaning component, which includes a water storage container, a water outlet device, and a cleaning member. The water storage container is used to store the cleaning liquid. The water storage container is connected to the water outlet device so that the water outlet device can spray the cleaning liquid on the surface to be cleaned. The cleaning member is arranged around the water outlet device so that the cleaning member contacts and cleans the surface to be cleaned sprayed with the cleaning liquid. The cleaning member is a brush. The rod portion of the brush near the brush head has a bending structure. The cleaning member includes a driving device, and the driving device is communicatively connected to the cleaning control system. The driving device is used to drive the cleaning member to perform a rotational movement along the axis of the bending structure. The water outlet device includes a water outlet pipe, a water outlet, and a water outlet valve. A drone, and the cleaning component is fixedly installed on the drone. A control system, which includes a flight control system and a cleaning control system. The drone is communicatively connected to the flight control system, and the cleaning component is communicatively connected to the cleaning control system. The LED display cleaning device further includes a water absorption device and a filtering device. The water absorption device includes a water suction pipe, a water suction port, and a negative pressure pump. One end of the water suction pipe is communicated with the water storage container, and the other end of the water suction pipe is connected with the water suction port. The water suction port is arranged below the water outlet and the cleaning member. The length of the water suction pipe extending horizontally is greater than the length of the water outlet pipe extending horizontally. The negative pressure pump is arranged on the water suction pipe and is located between the water storage container and the water suction port. The filtering device is arranged in the water storage container and / or at the connection between the water suction pipe and the water storage container. The filtering device is composed of a combination of filter paper and a filter screen. Wherein, the dirty mixed liquid sucked by the water suction pipe is removed of dirt through the filtering device and then flows back to the water storage container.

2. The LED display cleaning device according to claim 1, wherein, One end of the water outlet pipe is communicated with the water storage container, and the other end of the water outlet pipe is connected with the water outlet. The water outlet is a horizontal linear water outlet. The water outlet valve is arranged on the water outlet pipe and is located between the water storage container and the water outlet.

3. The LED display cleaning device according to claim 2, wherein The water outlet is arranged in the middle lower part, bottom or below the water storage container in the height direction.

4. The LED display cleaning device according to claim 1, wherein The water suction port is made of a flexible material.

5. The LED display cleaning device according to claim 1, characterized in that, The flight control system can control the flight attitude of the drone so that the cleaning member presses against the surface to be cleaned with a certain pressure.

6. The LED display cleaning device according to any one of claims 1-5, characterized in that, The drone includes at least one of the following: The drone has a camera, and the camera is used to monitor the LED display cleaning device to obtain the surface to be cleaned. The camera is communicatively connected to the control system. The drone has a ranging sensor, and the ranging sensor is used to measure the distance between the cleaning component and the surface to be cleaned. The ranging sensor is communicatively connected to the control system.

7. A cleaning method, applied to the LED display screen cleaning device according to any one of claims 1-6, characterized in that, Including steps: Controlling the drone to take off and move to the surface to be cleaned. Using the cleaning control system to start the cleaning component, controlling the water outlet device to spray the cleaning liquid on the surface to be cleaned, and at the same time controlling the cleaning member to contact and clean the surface to be cleaned sprayed with the cleaning liquid. Control the drone to fly along a preset trajectory or plan a flight trajectory according to an autonomous cruise algorithm, and continue cleaning until the entire surface to be cleaned is completely cleaned.

Images