Tunnel lamp automatic cleaning equipment and method based on laser dust removal technology

Abstract

The present application relates to tunnel lamp automatic cleaning equipment and method based on laser dust removal technology, belongs to tunnel lamp cleaning technical field, the equipment includes self -propelled platform and sets up on it and sprays wax device and laser dust removal device, sprays wax device is used for spraying certain thickness thin wax layer to lamp, laser dust removal device is used for removing thin wax layer on the lamp partially or entirely, thin wax layer on the lamp partially or entirely evaporates after laser irradiation of laser dust removal device, dust and dirt adhered to the surface of the lamp enter the dust suction port of the laser dust removal device after the evaporation of the thin wax layer, realizing the cleaning of the lamp. When the lamp is cleaned for the first time, first spray thin wax layer with thickness t on the lamp, after the thin wax layer solidifies, laser irradiation is carried out on the thin wax layer to make it evaporate entirely, make dust and dirt adhered to the surface of the lamp evaporate with the thin wax layer, then spray thin wax layer with thickness 2t on the lamp, only the surface layer of the thin wax layer needs to be removed during the next cleaning, and the cleaning purpose can be realized.

Description

Technical Field

[0001] This invention belongs to the field of tunnel lighting cleaning technology, and relates to automatic cleaning equipment and methods for tunnel lighting based on laser dust removal technology. Background Technology

[0002] The tunnel environment affects not only driving comfort but also driving safety. Lighting is the most direct impact on operating tunnels, making the cleaning of tunnel lighting fixtures increasingly important. Due to vehicle exhaust and dust, the surfaces of tunnel lighting fixtures are prone to deposits that generate corrosive gases and dust. Traditional cleaning methods for tunnel lighting fixtures require manual operation or the use of large cleaning equipment, which is time-consuming, labor-intensive, and poses certain safety risks.

[0003] Currently, with the development of technology, tunnel lighting cleaning vehicles are being used more and more widely, mainly including two types: one is the roller brush type tunnel lighting cleaning vehicle, and the other is the high-pressure water tunnel lighting cleaning vehicle. Both of these methods are very useful tunnel cleaning tools, but their disadvantages are also obvious.

[0004] (1) The disadvantages of the roller brush type tunnel lighting cleaning vehicle are as follows:

[0005] The cleaning effect is not thorough enough: the roller brush can only remove the attached substances on the surface of the lamp, and it is difficult to clean the deeper stains.

[0006] Secondary pollution to lamps: While roller brush cleaning may remove dust or oil and other contaminants adhering to the surface of lamps, it can also cause secondary pollution to the lamps.

[0007] It is suitable for more common lamps, but may not be suitable for cleaning some decorative lamps.

[0008] (2) The disadvantages of high-pressure water tunnel lighting cleaning vehicles are as follows:

[0009] High water consumption: High-pressure water cleaning relies on a large flow of water for cleaning, thus consuming a large amount of water resources;

[0010] Low cleaning efficiency: Stubborn stains may require multiple washes to remove, making the cleaning efficiency lower than other cleaning methods;

[0011] High-pressure water may damage the components of the lamp: the water pressure may hit the components of the lamp too hard and cause damage, so handle with care. Summary of the Invention

[0012] In view of this, the purpose of the present invention is to provide an automatic cleaning device and method for tunnel lights based on laser dust removal technology, so as to achieve efficient cleaning of tunnel lights.

[0013] To achieve the above objectives, the present invention provides the following technical solution:

[0014] An automatic cleaning device for tunnel lights based on laser dust removal technology includes a self-propelled platform with a lifting platform. The lifting platform is equipped with a light cleaning system, which includes a wax spraying device and a laser dust removal device. The wax spraying device applies a thin layer of wax to the lights, while the laser dust removal device partially or completely removes this thin wax layer. The wax layer evaporates partially or completely after being irradiated by the laser from the laser dust removal device. Dust and dirt adhering to the light fixture surface evaporate with the wax layer and enter the suction port of the laser dust removal device, thus cleaning the lights. The lifting platform also includes a high-pressure air cleaning pipe for high-pressure blowing and dust removal of the light fixture surface before waxing.

[0015] Optionally, the wax spraying device includes a wax spraying multi-joint robotic arm mounted on a lifting platform, and a spray gun mounted on the wax spraying multi-joint robotic arm, the spray gun being connected to a wax supply system.

[0016] Optionally, the lifting platform is equipped with a thin wax layer thickness detection probe and a wax spraying operation result detection camera. The thin wax layer thickness detection probe is used to detect the thickness of the thin wax layer, and the wax spraying operation result detection camera is used to detect the uniformity of the thin wax layer.

[0017] Optionally, the laser dust removal device includes a multi-jointed robotic arm for dust removal mounted on a lifting platform, and a laser dust collector mounted on the multi-jointed robotic arm for dust removal.

[0018] Optionally, the lifting platform is equipped with a cleaning operation result detection camera to detect the cleanliness of the lamps after laser dust removal.

[0019] Optionally, the lifting platform is equipped with a waste collection device located directly below the lamp cleaning system to collect falling debris.

[0020] Optionally, the platform is equipped with a lamp positioning system for positioning lamps, which includes a panoramic camera, a lamp positioning probe, and a processing system connected to the panoramic camera and the lamp positioning probe.

[0021] An automatic cleaning method for tunnel lights based on laser dust removal technology.

[0022] When cleaning tunnel lights for the first time, the following steps are included:

[0023] S1 sprays a thin wax layer of thickness t onto the lamp;

[0024] After the thin wax layer has cured, the thin wax layer is irradiated with a laser to evaporate it completely. The dust and dirt attached to the surface of the lamp are removed as the thin wax layer evaporates.

[0025] S3 applies a thin wax layer with a thickness of 2t to the lamps;

[0026] When the tunnel lights are not being cleaned for the first time, the following steps are included:

[0027] A1 uses laser irradiation to remove the surface layer of the thin wax layer with a thickness of t. Dust and dirt adhering to the surface of the lamp are removed after the surface layer of the thin wax layer evaporates.

[0028] A2 sprays a thin wax layer of thickness t onto the lamp, restoring the thickness of the thin wax layer on the lamp to 2t.

[0029] Optionally, an automatic tunnel lighting cleaning device as described above can be used.

[0030] Optionally, t = 0.3 mm.

[0031] The beneficial effects of this invention are as follows:

[0032] 1. High cleaning efficiency: Using laser dust removal technology, it can quickly and effectively clean lamps, with a higher cleaning efficiency than traditional cleaning methods.

[0033] 3. High cleaning quality: Laser dust removal will not damage the surface of the lamps, and the brightness of the lamps is more uniform after cleaning. The cleaning quality is better than traditional cleaning.

[0034] 4. Wide range of applications: It can adapt to lamps of various shapes and materials, and can be widely used for cleaning lamps in various road tunnels, municipal tunnels, subway tunnels and other facilities.

[0035] 5. Environmental protection: It does not produce any pollutant emissions and causes no secondary pollution.

[0036] 6. Reduce labor costs: It can replace manual cleaning, reducing labor costs and avoiding the safety hazards of working at heights.

[0037] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0038] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0039] Figure 1 This is a schematic diagram of the automatic cleaning equipment for tunnel lights based on laser dust removal technology according to the present invention;

[0040] Figure 2 This is a flowchart of the automatic cleaning method for tunnel lights based on laser dust removal technology according to the present invention.

[0041] Attached reference numerals: 1. Self-propelled platform; 2. Display and emergency brake; 3. Laser control and processing system; 4. Wax spraying control and processing system; 5. Wax liquid storage tank; 6. Wax liquid processing system; 7. Panoramic camera; 8. Lighting positioning probe; 9. Vehicle-mounted control system; 10. Cleaning operation prompt screen; 11. Waste collection device; 12. Spray gun; 13. Thin wax layer thickness detection probe; 14. Wax spraying operation result detection camera; 15. Cleaning operation result detection camera; 16. High-pressure blower cleaning pipe; 17. Laser dust collector; 18. Lifting platform. Detailed Implementation

[0042] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0043] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0044] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0045] The purpose of this invention is to develop a tunnel lighting cleaning equipment and method that enables deeper and more thorough cleaning of lighting fixtures while ensuring safe and efficient operation, thereby solving the problems existing in traditional cleaning methods. This invention uses a vehicle-mounted wax spraying device to pre-apply a special wax of a certain thickness to the lighting fixtures. This wax has excellent environmental performance, dustproof, waterproof, and wear-resistant properties, and can be applied automatically. Furthermore, this coating can be removed by a CO2 laser. After the wax layer is applied, dust generated during operation directly adheres to the wax layer (while the wax layer ensures the cleanliness of the lighting fixtures for a longer period). When dust removal is required, laser dust removal technology is used to remove the wax layer from the lighting fixtures, without generating any pollutant emissions, causing no secondary pollution, and providing high cleaning efficiency. It can quickly and deeply remove surface dirt, ensuring cleaning quality.

[0046] Laser dust removal technology utilizes the principle of laser interference. Under the irradiation of a laser beam, dust molecules or particles absorb the laser energy and will either evaporate, desorb, or explode and burn, thereby achieving efficient gas purification and surface cleaning. This invention uses laser dust removal technology to clean tunnel lighting fixtures, making the cleaning operation more reliable, safe, and efficient, bringing a revolutionary change to tunnel lighting fixture cleaning.

[0047] Please see Figures 1-2 An automatic cleaning device for tunnel lights based on laser dust removal technology includes a self-propelled platform 1, a lifting platform 18 on the self-propelled platform 1, and a light cleaning system on the lifting platform 18. The light cleaning system includes a wax spraying device and a laser dust removal device. The wax spraying device is used to spray a thin wax layer of a certain thickness onto the light fixture. The laser dust removal device is used to partially or completely remove the thin wax layer on the light fixture. After being irradiated by the laser of the laser dust removal device, the thin wax layer on the light fixture partially or completely evaporates. The dust and dirt attached to the surface of the light fixture evaporate with the thin wax layer and enter the dust suction port of the laser dust removal device to achieve cleaning of the light fixture.

[0048] The wax spraying device can have the following structure: a multi-joint robotic arm for wax spraying mounted on a lifting platform 18, and a spray gun 12, a thin wax layer thickness detection probe 13, and a wax spraying operation result detection camera 14 mounted on the multi-joint robotic arm for wax spraying; the spray gun 12 is connected to a wax supply system mounted on a self-propelled platform 1, the wax supply system including a wax storage tank 5 and a wax processing system 6 arranged sequentially along the wax flow direction, the wax processing system 6 being connected to the spray gun 12; the thin wax layer thickness detection probe 13 is used to detect the thickness of the thin wax layer; the wax spraying operation result detection camera 14 is used to detect the uniformity of the thin wax layer; the thin wax layer thickness detection probe 13 and the wax spraying operation result detection camera 14 are located on both sides of the spray gun 12.

[0049] The laser dust removal device can have the following structure: including a multi-jointed robotic arm for dust removal mounted on a lifting platform 18, and a laser dust collector 17, a cleaning operation result detection camera 15, and a high-pressure blowing cleaning pipe 16 mounted on the multi-jointed robotic arm for dust removal; the cleaning operation result detection camera 15 is used to detect the cleanliness of the lamps after laser dust removal; the high-pressure blowing cleaning pipe 16 is used to perform high-pressure blowing to remove dust from the surface of the lamps before waxing; the cleaning operation result detection camera 15 and the high-pressure blowing cleaning pipe 16 are located on both sides of the laser dust collector 17.

[0050] Optionally, the lifting platform 18 is equipped with a waste collection device 11, which is located directly below the lamp cleaning system to collect falling debris. The self-propelled platform 1 is equipped with a lamp positioning system, which is used to position the lamps. The lamp positioning system includes a panoramic camera 7, a lamp positioning probe 8, and a processing system connected to the panoramic camera 7 and the lamp positioning probe 8. The panoramic camera 7 is located on the top of the control room, and the lamp positioning probe 8 is located at the front end of the lifting platform 18. The self-propelled platform 1 is arranged from front to back with a driver's cab, a control room, a wax supply system, the lifting platform 18, and a cleaning operation prompt screen 10. The driver's cab is equipped with a display and an emergency brake 2. The control room is equipped with a laser control and processing system 3, a wax spraying control and processing system 4, and an on-board control system 9. The display and emergency brake 2 are connected to the on-board control system 9 to control the status of the self-propelled platform 1. The laser control and processing system 3 is used to control the laser dust removal device, the wax spraying control and processing system 4 is used to control the wax spraying device, and the on-board control system 9 is used to process the data collected from sensors, displays, and other devices.

[0051] An automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology is as follows:

[0052] (a) When cleaning tunnel lights for the first time, it is necessary to apply wax to the lights in advance.

[0053] Step 1. Preparation: Before starting the automatic cleaning equipment for tunnel lights, you need to prepare the equipment and materials for spraying wax, such as spray guns and wax liquid.

[0054] Step 2. Reaching the first light fixture: The tunnel light fixture automatic cleaning equipment enters the tunnel and moves to the location of the first light fixture that needs to be sprayed with wax.

[0055] Step 3. Positioning and Wax Application: Based on the information determined by the light source and sensors, the tunnel lighting automatic cleaning equipment will autonomously position itself and begin the wax application process. A spray gun can be used to evenly spray the wax onto the surface of the lighting fixture to protect it from oxidation and damage. The initial wax thickness should be approximately 0.3mm.

[0056] Step 4. Cleaning and Re-inspection: After the wax coating is applied, the automatic cleaning equipment for tunnel lights will perform necessary cleaning operations to remove excess wax and dirt. A re-inspection will then be conducted to ensure the wax coating meets the requirements.

[0057] Step 5. Move to the next light fixture: After the current light fixture is coated with wax, the tunnel light fixture automatic cleaning equipment will automatically move to the next light fixture that needs to be coated with wax and repeat the above process until all the light fixtures in the tunnel are cleaned and all the wax coating process is completed. The initial wax coating thickness of the light fixture is about 0.3mm.

[0058] Step 6. Equipment Maintenance: After all the lamps have been cleaned and waxed, the automatic cleaning equipment for tunnel lamps needs to be maintained and maintained. At the same time, the cleaning effect and the amount of wax used can be evaluated and recorded.

[0059] Step 7. Turn the vehicle around. Since the initial wax spray has already hardened during the operation,

[0060] Step 8. Locate the first light fixture. Start the automatic tunnel light cleaning equipment, preheat it, and check its operating status. Simultaneously, traffic inside the tunnel must be closed to ensure the cleaning process proceeds safely.

[0061] Step 9. Based on the information determined by the light source and sensors, the tunnel lighting automatic cleaning equipment will autonomously locate itself and begin the cleaning operation. Laser removal of the initial wax coating thickness of approximately 0.3mm is applied to the lighting fixtures. This completes the first cleaning of the lighting fixtures.

[0062] Step 10. Apply a second coat of wax to the first lamp, with a wax thickness of 0.6mm.

[0063] Step 11. Cleaning and Re-inspection: After the wax coating is applied, the automatic cleaning equipment for tunnel lights will perform necessary cleaning operations to remove excess wax and dirt. A re-inspection will then be conducted to ensure the wax coating meets the requirements.

[0064] Step 12. Position the next light fixture. Repeat Steps 9, 10, and 11 until all light fixtures have been coated with base wax (leaving a base wax thickness of 0.6mm).

[0065] (ii) If the tunnel lights are not being cleaned for the first time, apply wax after laser cleaning.

[0066] Step 1. Preparation: Before starting the automatic cleaning equipment for tunnel lights, you need to prepare the equipment and materials for spraying wax, such as spray guns and wax liquid.

[0067] Step 2. Start the automatic cleaning equipment for tunnel lights, preheat it, and check its operating status. At the same time, traffic inside the tunnel needs to be closed to ensure the cleaning process is carried out safely.

[0068] Step 3. Reaching the first light fixture: The tunnel light fixture automatic cleaning equipment enters the tunnel, moves to the location of the first light fixture that needs cleaning, and sets up a light source and sensor above the light fixture to determine the location and status of the light fixture.

[0069] Step 4. Positioning and Cleaning: Based on the information determined by the light source and sensors, the automatic tunnel lighting cleaning equipment will autonomously position itself and begin cleaning. Specifically, the laser dust collector emits a high-frequency, high-intensity laser beam to instantly evaporate dust and dirt on the surface of the lighting fixtures, and absorbs residual smoke and dust, thereby achieving a cleaning effect. In this case, the previous 0.6mm base wax layer on the lighting fixtures was removed to a thickness of 0.3mm, leaving a 0.3mm base wax layer.

[0070] Step 5. Re-inspection: A re-inspection will be conducted after the cleaning operation is completed to ensure that the cleaning effect meets the requirements.

[0071] Step 6. Positioning and Wax Spraying: Based on the information determined by the light source and sensors, the tunnel lighting automatic cleaning equipment will autonomously position itself and begin the wax spraying operation. A spray gun can be used to evenly spray the wax onto the surface of the lighting fixture to protect it from oxidation and damage. This wax spraying is 0.3mm thick, plus a 0.3mm base wax, resulting in a total base wax thickness of 0.6mm after this waxing operation.

[0072] Step 7. Cleaning and Re-inspection: After the wax coating is applied, the automatic cleaning equipment for tunnel lights will perform necessary cleaning operations to remove excess wax and dirt. A re-inspection will then be conducted to ensure the wax coating meets the requirements.

[0073] Step 8. Move to the next light fixture: After the wax is applied, the tunnel light fixture automatic cleaning equipment will automatically move to the next light fixture that needs to be cleaned and repeat Step 4, Step 5, Step 6, and Step 7 until all the light fixtures in the tunnel are cleaned and the wax on the surface of the light fixtures is reapplied.

[0074] Step 9. Organize the equipment: After all the lights have been cleaned, the automatic cleaning equipment for tunnel lights needs to be organized and maintained. At the same time, the cleaning effect and efficiency can be evaluated and recorded.

[0075] Compared to existing technologies, this invention can clean lighting fixtures faster and more thoroughly, reducing cleaning time and workload. Traditional dust-collecting robots have poor cleaning effects, while the laser dust removal technology used in this invention can better remove dust and dirt, resulting in superior cleaning effects. Simultaneously, with the aid of a wax spraying device, this invention can form a specialized wax layer, extending the cleaning cycle of the lighting fixtures, reducing maintenance costs, and improving the overall hygiene of the tunnel. Furthermore, since the laser dust removal technology removes the pre-applied wax from the lighting fixtures, it indirectly removes dust and therefore does not cause any damage to the fixtures. In summary, the innovations of this invention are mainly reflected in laser dust removal and vehicle-mounted thin wax spraying, thereby solving the problems of low efficiency and high cost associated with traditional manual or dust-collecting robot cleaning of tunnel lighting fixtures, achieving a faster, more economical, and more efficient method of lighting fixture cleaning, and improving the efficiency and quality of tunnel cleaning and maintenance.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automatic cleaning method for tunnel lights based on laser dust removal technology, providing an automatic cleaning device for tunnel lights based on laser dust removal technology, the automatic cleaning device for tunnel lights including a self-propelled platform (1), a lifting platform (18) on the self-propelled platform (1), and a light cleaning system on the lifting platform (18), characterized in that: The lamp cleaning system includes a wax spraying device and a laser dust removal device. The wax spraying device is used to spray a thin wax layer of a certain thickness onto the lamp. The laser dust removal device is used to partially or completely remove the thin wax layer on the lamp. After being irradiated by the laser of the laser dust removal device, the thin wax layer on the lamp partially or completely evaporates. The dust and dirt attached to the surface of the lamp evaporates with the thin wax layer and enters the suction port of the laser dust removal device to clean the lamp. The lifting platform (18) is also equipped with a high-pressure blowing cleaning pipe (16) and a waste collection device (11). The high-pressure blowing cleaning pipe (16) is used to blow and remove dust from the surface of the lamp before waxing. The waste collection device (11) is used to collect the fallen debris. When cleaning tunnel lights for the first time, the following steps are included: S1 sprays a thin wax layer of thickness t onto the lamp; After the thin wax layer has cured, the thin wax layer is irradiated with a laser to evaporate it completely. The dust and dirt attached to the surface of the lamp are removed as the thin wax layer evaporates. S3 applies a thin wax layer with a thickness of 2t to the lamps; When the tunnel lights are not being cleaned for the first time, the following steps are included: A1 uses laser irradiation to remove the surface layer of the thin wax layer with a thickness of t. Dust and dirt adhering to the surface of the lamp are removed after the surface layer of the thin wax layer evaporates. A2 sprays a thin wax layer of thickness t onto the lamp, restoring the thickness of the thin wax layer on the lamp to 2t.

2. The automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology according to claim 1, characterized in that: The wax spraying device includes a wax spraying multi-joint robotic arm mounted on a lifting platform (18) and a spray gun (12) mounted on the wax spraying multi-joint robotic arm, the spray gun (12) being connected to a wax supply system.

3. The automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology according to claim 1, characterized in that: The lifting platform (18) is equipped with a thin wax layer thickness detection probe (13) and a wax spraying operation result detection camera (14). The thin wax layer thickness detection probe (13) is used to detect the thickness of the thin wax layer, and the wax spraying operation result detection camera (14) is used to detect the uniformity of the thin wax layer.

4. The automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology according to claim 1, characterized in that: The laser dust removal device includes a dust removal multi-joint robotic arm mounted on a lifting platform (18) and a laser dust collector (17) mounted on the dust removal multi-joint robotic arm.

5. The automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology according to claim 1, characterized in that: The lifting platform (18) is equipped with a cleaning operation result detection camera (15) to detect the cleanliness of the lamps after laser dust removal.

6. The automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology according to claim 1, characterized in that: The waste collection device (11) is a box structure with a normally open top, located directly below the lamp cleaning system.

7. The automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology according to claim 1, characterized in that: The self-propelled platform (1) is equipped with a lamp positioning system, which is used to position the lamps. The system includes a panoramic camera (7), a lamp positioning probe (8), and a processing system connected to the panoramic camera (7) and the lamp positioning probe (8).

8. The automatic cleaning method for tunnel lighting fixtures based on laser dust removal technology according to claim 1, characterized in that: t=0.3mm.

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