Surface self-cleaning system of machine vision system under mine

Abstract

The invention discloses an underground machine vision system surface self-cleaning system, which relates to the technical field of mining engineering, and comprises a protective shell, a protective assembly and a cleaning assembly, the protective shell is provided with a protective cavity for placing the visual system, and at least the side wall part, opposite to the monitoring end of the visual system, of the protective shell is a transparent part; the protection assembly is arranged on the protection shell and can seal or communicate the transparent part with the outside; the cleaning assembly is arranged on the protective shell and used for providing jet flow for the outer side wall of the transparent part so that cleaning can be conducted. According to the surface self-cleaning system for the machine vision system under the mine, the dust removal efficiency, safety and reliability of the vision system are improved.

Description

Technical Field

[0001] This invention relates to the field of mining engineering technology, and in particular to a self-cleaning system for the surface of a machine vision system in underground mines. Background Technology

[0002] With the high-quality development of the coal industry, the coal industry is accelerating its transformation towards intelligentization. Underground machine vision systems play a crucial role in information collection during the intelligentization of coal mines. However, facing adverse conditions such as coal dust and water mist that affect the stable acquisition of images by machine vision systems underground, and the resulting contamination of the lens surface, most mines currently rely on manual wiping for dust removal. However, machine vision systems require relatively frequent dust removal, and the installation locations are often confined to limited space and in hazardous areas, making manual wiping costly, difficult, and posing safety hazards. Some machine vision systems are also equipped with mechanical wipers. These wipers, constantly wiping the lens cover in dusty environments, damage the cover and affect image quality. Furthermore, due to the structure of the wipers and the outer shell of the machine vision system, the dust removal area is incomplete, leading to dust accumulation. Summary of the Invention

[0003] The purpose of this invention is to provide a self-cleaning system for the surface of a machine vision system in a mine, so as to solve the problems existing in the prior art and improve the efficiency, safety and reliability of dust removal for the vision system.

[0004] To achieve the above objectives, the present invention provides the following solution: This invention provides a self-cleaning system for the surface of a machine vision system in an underground mine, comprising a protective shell, a protective component, and a cleaning component; the protective shell has a protective cavity for housing the vision system, and at least one sidewall portion of the protective shell opposite to the monitoring end of the vision system is configured as a transparent portion; the protective component is disposed on the protective shell, and the protective component is capable of sealing or communicating the transparent portion with the outside world; the cleaning component is disposed on the protective shell, and the cleaning component is used to provide a jet to clean the outer wall of the transparent portion.

[0005] Preferably, the protective component includes a closed shell and an opening and closing mechanism. The closed shell is disposed outside the transparent part and is circumferentially sealed to the protective shell. The side of the closed shell connected to the transparent part is open. A connecting hole is provided on the side of the closed shell opposite to the transparent part. The opening and closing mechanism is connected to the side of the closed shell opposite to the transparent part, and the opening and closing mechanism can close or open the connecting hole.

[0006] Preferably, the opening and closing mechanism includes a power component, a drive gear, a driven gear disk, and multiple opening and closing plates. The drive gear, the driven gear disk, and the multiple opening and closing plates are all disposed within the enclosed shell. The drive gear and the driven gear disk are rotatably connected to the protective shell. The driven gear disk has a hollow hole opposite to the monitoring end and the connecting hole. The multiple opening and closing plates are circumferentially connected to the driven gear disk. The power component is driven by the drive gear, and the drive gear meshes with the driven gear disk. The hollow hole is close to the connecting hole. The power component is disposed within the protective cavity. The drive end of the power component extends out of the protective cavity and drives the drive gear to rotate, thereby driving the driven gear disk to rotate, which in turn drives the opening and closing plates to move and close or open the hollow hole, thereby closing or opening the connecting hole.

[0007] Preferably, the cleaning assembly includes a jet tube connected to the protective shell, the jet end of the jet tube being connected to an airflow channel provided inside the sealed shell, the air outlet of the airflow channel facing the transparent part, and the jet tube being connected to a flow supply device to perform jet cleaning to the outside of the transparent part.

[0008] Preferably, the jet tube is disposed on the upper side of the transparent portion, and the jet tube is movable relative to the protective shell to adjust the jet direction.

[0009] Preferably, the flow supply device is capable of adjusting the jet velocity and jet pattern of the jet tube.

[0010] Preferably, it further includes a control mechanism, which is communicatively connected to both the protection component and the cleaning component, and is capable of controlling the actions of the protection component and the cleaning component.

[0011] Preferably, the system further includes a bracket for fixed connection to the fixing part, the protective shell is connected to the bracket, and the protective shell is movable relative to the bracket to adjust the monitoring angle of the vision system.

[0012] Preferably, the protective shell is made of stainless steel, and the transparent part is made of a wear-resistant transparent material.

[0013] Preferably, it further includes a protective cover, which is connected to the protective shell and disposed above the transparent portion.

[0014] The present invention achieves the following technical effects compared to the prior art: The self-cleaning system for the surface of a mining machine vision system provided by this invention places the underground vision system within a protective cavity of a protective shell, enabling visual monitoring through a transparent portion. The protective components can either seal or connect the transparent portion to the outside environment. When monitoring is required, the transparent portion is connected to the outside, allowing the vision system to monitor through it. When monitoring is not required, the transparent portion is sealed off, protecting it and reducing dust adhesion. Furthermore, the cleaning components can perform jet cleaning on the outside of the transparent portion, minimizing damage during cleaning. Thus, the self-cleaning system for the surface of a mining machine vision system provided by this invention can solve the problem of contamination of the machine vision system lens surface by adverse conditions such as coal dust and water mist in underground mines, thereby obtaining stable images. It also overcomes the drawbacks of manual and mechanical dust removal, eliminating the dependence on manual dust removal and the damage caused by mechanical dust removal, improving dust removal efficiency, safety, and reliability. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded structural diagram of the surface self-cleaning system of the underground machine vision system provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the driven gear disk provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the toothed disc cover provided in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the structure of the rotating base provided in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the structure of the closed shell provided in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the structure of the opening and closing piece provided in Embodiment 1 of the present invention.

[0017] In the diagram: 1-Protective shell; 2-Vision system; 3-Protective component; 31-Enclosed shell; 32-Opening and closing mechanism; 33-Connecting hole; 34-Power component; 35-Drive gear; 36-Driven gear plate; 37-Opening and closing plate; 371-Connecting post; 372-Guide post; 38-Hollow hole; 39-Rotating base; 391-Guide groove; 40-Gear plate cover; 401-Connecting groove; 402-Arc groove; 4-Cleaning component; 41-Jet tube; 5-Bracket; 6-Protective cover; 7-Aircraft plug. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The purpose of this invention is to provide a self-cleaning system for the surface of a machine vision system in a mine, so as to solve the problems existing in the prior art and improve the efficiency, safety and reliability of dust removal for the vision system.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1 This embodiment provides a surface self-cleaning system for a machine vision system in underground mines. Please refer to [link / reference]. Figures 1-3 The system includes a protective shell 1, a protective component 3, and a cleaning component 4. The protective shell 1 has a protective cavity 11 for housing the vision system 2, and at least the side wall portion of the protective shell 1 opposite to the monitoring end of the vision system 2 is configured as a transparent portion. The protective component 3 is disposed on the protective shell 1 and is capable of sealing or communicating the transparent portion with the outside world. The cleaning component 4 is disposed on the protective shell 1 and is used to provide a jet to the outer wall of the transparent portion for cleaning.

[0022] The underground vision system 2, i.e., the camera, is placed inside the protective cavity 11 of the protective shell 1, and visual monitoring can be achieved through the transparent part. The protective component 3 can seal or connect the transparent part with the outside world. When monitoring is required, the transparent part is connected to the outside world, and the vision system 2 can monitor through the transparent part. When monitoring is not required, the transparent part is sealed to the outside world, thereby protecting the transparent part and reducing dust adhesion. In addition, the cleaning component 4 can also perform jet cleaning on the outside of the transparent part, reducing damage while cleaning. Thus, the self-cleaning system for the surface of the underground machine vision system provided by the present invention can solve the problem of contamination of the lens surface of the machine vision system by adverse conditions such as coal dust and water mist in the mine, thereby obtaining stable images. Moreover, it overcomes the drawbacks of manual dust removal and mechanical dust removal, solves the dependence of equipment dust removal on manual labor, and solves the damage to equipment caused by mechanical dust removal, improving the efficiency, safety and reliability of dust removal.

[0023] In the optional embodiment, more preferably, the protective component 3 includes a closed shell 31 and an opening and closing mechanism 32. The closed shell 31 is disposed on the outside of the transparent part and is circumferentially sealed to the protective shell 1. The side of the closed shell 31 connected to the transparent part is open. A connecting hole 33 is provided on the side of the closed shell 31 opposite to the transparent part. The opening and closing mechanism 32 is connected to the side of the closed shell 31 opposite to the transparent part. The opening and closing mechanism 32 can close or open the connecting hole 33.

[0024] The enclosure 31 facilitates sealing of the transparent part and reduces dust adhesion. The opening and closing mechanism 32 opens and closes the connecting hole 33 on the enclosure 31 to achieve the connection between the transparent part and the outside world. Specifically, the enclosure 31 can be fixedly connected to the protective shell 1 by bolts, and a sealing ring can be set at the connection to improve the sealing performance.

[0025] In the optional embodiment, more preferably, the opening and closing mechanism 32 includes a power component 34, a drive gear 35, a driven gear disk 36, and multiple opening and closing pieces 37. The drive gear 35, the driven gear disk 36, and the multiple opening and closing pieces 37 are all disposed inside the closed shell 31. The drive gear 35 and the driven gear disk 36 are rotatably connected to the protective shell 1. The driven gear disk 36 has a hollow hole 38 opposite to the monitoring end and the connecting hole 33. The multiple opening and closing pieces 37 of the hollow hole 38 are circumferentially connected to the driven gear disk 36. The power component 34 is driven by the drive gear 35, and the drive gear 35 is meshed with the driven gear disk 36.

[0026] The hollow hole 38 is close to the connecting hole 33, meaning the driven gear 36 can be positioned close to the side of the closed shell 31 away from the transparent part, so that the connecting hole 33 and the hollow hole 38 are close together, sealing both the hollow hole and the connecting hole 33. The power component 34 is located inside the protective cavity 11, with its drive end extending out of the protective cavity 11 and driving the drive gear 35 to rotate, thereby rotating the driven gear 36 and driving the opening / closing plate 37 to close or open the hollow hole 38, and thus close or open the connecting hole 33. Specifically, the power component 34 is a motor, located inside the protective cavity 11 for easy protection and arrangement. Both the power component 34 and the vision system 2 can be electrically or communicatively connected to the outside world through the aviation plug 7 provided on the protective shell 1. The drive gear 35 can be coaxially fixedly connected to the output shaft of the power component 34 to achieve transmission drive. The driven gear 36 is fixedly sleeved on the gear cover 40, and a rotating base 39 is fixedly provided inside the closed shell 31. The gear disk 36 has at least partially meshing teeth in its circumferential direction that mesh with the drive gear 35. Multiple opening and closing plates 37 are circumferentially disposed between the gear disk cover 40 and the rotating base 39. Each opening and closing plate 37 is provided with a connecting post 371 and a guide post 372. The gear disk cover 40 has multiple connecting grooves 401 that engage with the connecting posts 371 on the corresponding opening and closing plates 37. The rotating base 39 has multiple guide grooves 391 that slide with the guide posts 372 on the corresponding opening and closing plates 37. The drive gear 25 is capable of driving... The driven and driven gear disk 36 and the gear disk cover 40 rotate synchronously, so as to drive the opening and closing piece 37 where the corresponding connecting post 371 is located to move through the connecting groove 401, and slide under the guidance of the guide post 372 and the guide groove 391 to realize the opening and closing between multiple opening and closing pieces 37; in addition, an arc-shaped groove 402 can be provided on the circumferential edge of the gear disk cover 40, and a sliding post can be provided in the arc-shaped groove 402. The sliding post is fixedly set inside the closed shell 31 to guide the rotation of the driven gear disk 36 and the gear disk cover 40.

[0027] More preferably, the opposite sides of adjacent opening and closing pieces 37 have a sealing structure, and the sealing structure can seal the opposite sides when closed. For example, it can be set as a bevel that can be matched, a protrusion and a groove that can be matched, or an alternating closing edge that can be matched, so as to improve the sealing performance of the opening and closing pieces 37 when closed.

[0028] In the optional embodiment, more preferably, the cleaning component 4 includes a jet pipe 41, which is connected to the protective shell 1. The jet end of the jet pipe 41 can connect to the airflow channel provided inside the closed shell 31. The air outlet of the airflow channel faces the transparent part. The jet pipe 41 can connect to the flow supply device. The jet end of the jet pipe 41 extends out of the protective shell 1 to perform jet cleaning to the outside of the transparent part.

[0029] The supply device can be configured as a compressed air device to provide a gas jet to the jet pipe 41 to remove dust from the transparent part by blowing away the dust.

[0030] In the optional embodiments of this example, more preferably, the jet tube 41 is disposed on one side of the transparent part. The jet tube 41 can move relative to the protective shell 1 to adjust the jet direction. During installation, the relative position of the jet tube 41 and the protective shell 1 is adjusted so that the jet direction meets the requirements. The jet tube 41 can be made of a flexible material and its relative position can be adjusted by its own deformation. Alternatively, a fixing plate can be embedded in the through hole. Different fixing plates have through holes in different directions. By cooperating with different fixing plates, the jet tube 41 can be fixed in different directions, thereby adjusting the jet direction.

[0031] The jet tube 41 is located on the lower side of the transparent part. Furthermore, a dust outlet can be provided on the lower side of the closed shell 31, or a connecting hole 33 on the closed shell 31 can be used to allow dust to be discharged.

[0032] In the optional embodiments of this example, it is more preferred that the flow supply device can adjust the flow velocity and flow pattern of the flow tube 41.

[0033] The flow supply device can adjust the jet speed to low or high speed under the control of the control mechanism, and the jet method can be pulse jet or continuous jet to clean the transparent part.

[0034] In the optional scheme of this embodiment, more preferably, the surface self-cleaning system of the underground machine vision system provided in this embodiment also includes a control mechanism. The control mechanism is communicatively connected to both the protective component 3 and the cleaning component 4, and is able to control the actions of the protective component 3 and the cleaning component 4.

[0035] The control mechanism can be set as a PLC controller to realize the on-demand operation of the protection component 3 and the cleaning component 4. The protection component 3 and the cleaning component 4 work together, that is, when the protection component 3 is opened, the cleaning component 4 starts ventilation and cleaning, and when the protection component 3 is closed, the cleaning component 4 stops ventilation. The overall control through the control mechanism is conducive to realizing the automatic cleaning of the vision system 2.

[0036] In the optional embodiments of this example, more preferably, the surface self-cleaning system of the underground machine vision system provided in this example further includes a bracket 5, which is fixedly connected to the fixing part, and a protective shell 1 is connected to the bracket 5. The protective shell 1 can move relative to the bracket 5 to adjust the monitoring angle of the vision system 2.

[0037] One end of the support 5 is fixedly connected to the fixing mechanism in the mine by bolts or other means, and the other end is connected to the protective shell 1 by a universal joint. It can dampen the rotating shaft or universal joint to adjust the vertical angle and fix the relative position. Alternatively, the support 5 is provided with a limiting arc groove, and the protective shell 1 is provided with a limiting post that cooperates with the limiting arc groove. When the protective shell 1 rotates, the limiting post slides in the limiting arc groove to guide and limit the movement.

[0038] The protective shell 1 tilts naturally downwards, and the dust falls due to its own weight, which helps to keep it clean.

[0039] In the optional solutions of this embodiment, more preferably, the protective shell 1 is made of stainless steel and the transparent part is made of wear-resistant transparent material.

[0040] The protective shell 1 is made of stainless steel with a polishing process to reduce dust adhesion; the transparent part is made of polymethyl methacrylate material with good light transmittance, wear resistance and no static electricity, so that the vision system 2 can monitor while ensuring service life.

[0041] In the optional embodiments of this example, more preferably, the surface self-cleaning system of the underground machine vision system provided in this example further includes a protective cover 6, which is connected to the protective shell 1 and is disposed above the transparent part.

[0042] The dust cover 6 reduces dust adhesion to the enclosed shell 31, thereby reducing the amount of dust entering the enclosed shell 31 and obstructing the transparent part.

[0043] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A self-cleaning system for the surface of a machine vision system in underground mines, characterized in that: include: The protective shell (1) has a protective cavity (11) for housing the vision system (2), and the protective shell (1) has at least a transparent portion on the side wall opposite to the monitoring end of the vision system (2); A protective component (3) is disposed on the protective shell (1), and the protective component (3) is capable of sealing or communicating the transparent part with the outside world; and A cleaning component (4) is disposed on the protective shell (1) and is used to provide a jet to the outer wall of the transparent part for cleaning.

2. The surface self-cleaning system of the underground machine vision system according to claim 1, characterized in that: The protective component (3) includes a closed shell (31) and an opening and closing mechanism (32). The closed shell (31) is disposed on the outside of the transparent part and is circumferentially sealed to the protective shell (1). The side of the closed shell (31) connected to the transparent part is open. A connecting hole (33) is provided on the side of the closed shell (31) opposite to the transparent part. The opening and closing mechanism (32) is connected to the side of the closed shell (31) opposite to the transparent part. The opening and closing mechanism (32) can close or open the connecting hole (33).

3. The surface self-cleaning system of the underground machine vision system according to claim 2, characterized in that: The opening and closing mechanism (32) includes a power component (34), a drive gear (35), a driven gear disk (36), and multiple opening and closing pieces (37). The drive gear (35), the driven gear disk (36), and the multiple opening and closing pieces (37) are all disposed inside the closed shell (31). The drive gear (35) and the driven gear disk (36) are rotatably connected to the protective shell (1). The driven gear disk (36) has a hollow hole (38) opposite to the monitoring end and the connecting hole (33). The multiple opening and closing pieces (37) are circumferentially connected to the driven gear disk (36) through the hollow hole (38). The power component (34) is driven by the drive gear (35), and the drive gear (35) is meshed with the driven gear disk (36). The hollow hole (38) is close to the connecting hole (33). The power component (34) is disposed in the protective cavity (11). The driving end of the power component (34) extends out of the protective cavity (11) and drives the driving gear (35) to rotate, so as to drive the driven gear plate (36) to rotate, thereby driving the opening and closing plate (37) to move so as to close or open the hollow hole (38), and thus close or open the connecting hole (33).

4. The surface self-cleaning system of the underground machine vision system according to claim 2, characterized in that: The cleaning component (4) includes a jet tube (41) connected to the protective shell (1). The jet end of the jet tube (41) can connect to the airflow channel provided inside the closed shell (31). The air outlet of the airflow channel faces the transparent part. The jet tube (41) can connect to a flow supply device to perform jet cleaning to the outside of the transparent part.

5. The surface self-cleaning system of the underground machine vision system according to claim 4, characterized in that: The jet tube (41) is disposed on the upper side of the transparent part, and the jet tube (41) can move relative to the protective shell (1) to adjust the jet direction.

6. The surface self-cleaning system of the underground machine vision system according to claim 4, characterized in that: The flow supply device can adjust the jet speed and jet pattern of the jet pipe (41).

7. The surface self-cleaning system of the underground machine vision system according to claim 1, characterized in that: It also includes a control mechanism, which is communicatively connected to both the protection component (3) and the cleaning component (4) and is capable of controlling the actions of the protection component (3) and the cleaning component (4).

8. The surface self-cleaning system of the underground machine vision system according to claim 1, characterized in that: It also includes a bracket (5) for fixed connection to the fixing part, the protective shell (1) is connected to the bracket (5), and the protective shell (1) is movable relative to the bracket (5) to adjust the monitoring angle of the vision system (2).

9. The surface self-cleaning system of the underground machine vision system according to claim 1, characterized in that: The protective shell (1) is made of stainless steel, and the transparent part is made of wear-resistant transparent material.

10. The surface self-cleaning system of the underground machine vision system according to claim 1, characterized in that: It also includes a protective cover (6), which is connected to the protective shell (1) and disposed above the transparent part.

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