Sealed mining intrinsic safety type camera with image analysis function

Abstract

The utility model relates to the technical field of mining safety monitoring equipment, in particular to a sealed mining intrinsic safety type camera with image analysis, which comprises a mounting bracket, a camera shell and a camera main body, the mounting bracket is movably connected with the camera shell, the camera shell is movably sleeved with the camera main body, and the camera main body is movably sleeved with the camera shell. The camera shell structurally comprises a shell body, and a bottom plate mounting block is fixedly connected to the middle of the lower surface of the shell body; according to the mining intrinsic safety type anti-fatigue analysis camera, the camera is independently assembled through the camera lens, the light supplementing plate, the PCB mounting bracket, the power supply communication board, the AI algorithm board and the Ethernet communication isolation board, so that a connected structure designed on a camera shell is avoided; furthermore, the convenience of assembly and maintenance between the camera shell and the camera main body is improved, meanwhile, the sealing performance and the heat dissipation performance of a product are considered, and the failure rate in the traditional installation and use process is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of mine safety monitoring equipment, specifically to a sealed intrinsically safe camera for mining with image analysis. Background Technology

[0002] In the mining production process, monitoring systems are one of the important means to ensure safe production. Especially in the special environment of mines, monitoring equipment needs to have high sealing performance, good heat dissipation performance and electrical safety to adapt to harsh working conditions.

[0003] For example, application number 202121231261.6 discloses an intrinsically safe mining camera with video analysis, including a base, a housing, and a camera structure. The housing has an air inlet, a filter screen inside the air inlet, and structures such as a rotating shaft, a fan, and gears. Through the coordinated use of the fan, rotating shaft, cleaning rod, filter screen, and activated carbon adsorption plate, the rotation of the fan allows outside air to enter the housing after being filtered by the filter screen through the air inlet. The rotation of the fan drives the rotation of the rotating shaft, which in turn causes the cleaning rod to clean the outer surface of the filter screen, preventing the filter screen from clogging and affecting the heat dissipation effect inside the device. The air drawn in by the fan is filtered by the activated carbon adsorption plate to remove humid air, and the filtered air effectively dissipates heat from the camera, thus realizing the heat dissipation function of the intrinsically safe mining camera. However, the complex structure not only increases production and maintenance costs, but also requires additional cleaning procedures and lacks sealing. In the special mining environment, dust can easily cover the lens, affecting the clarity of the monitoring.

[0004] In summary, while existing mining surveillance cameras can meet basic monitoring needs, they still have shortcomings in terms of sealing, heat dissipation, and assembly methods. For example, existing mining cameras typically use simple sealing measures, which are insufficient in terms of waterproofing and dustproofing, making internal circuits susceptible to moisture or dust ingress, affecting the stability and lifespan of the equipment. Due to the high temperature in the mine environment, the heat dissipation performance of existing cameras is poor, which can easily lead to overheating of the circuits and affect the normal operation of the equipment. Furthermore, in the assembly process of existing cameras, circuit boards and lenses are often directly installed inside the housing, making assembly and maintenance inconvenient and easily damaging circuit boards, algorithm boards, or lenses during installation.

[0005] To address the aforementioned issues, this invention proposes a sealed, intrinsically safe camera for mining applications with image analysis capabilities. By optimizing the structural design, the device's sealing performance, heat dissipation, and ease of assembly are improved, ensuring the imaging quality of the lens. Utility Model Content

[0006] The purpose of this invention is to provide an intrinsically safe camera for sealed mines with image analysis capabilities, in order to solve the technical problems mentioned in the background section.

[0007] To achieve the above objectives, this utility model discloses a sealed intrinsically safe camera for mining with image analysis, including a mounting bracket, a camera housing, and a camera body, wherein the mounting bracket is movably connected to the camera housing, and the camera housing is movably sleeved with the camera body;

[0008] The camera housing includes a housing, a base plate mounting block fixedly connected to the center of the lower surface of the housing, a sealing gasket fixedly connected to the four sides of the inside of the base plate mounting block, a second screw hole on the lower surface of the base plate mounting block, a glass groove on the front of the housing, a lens hole in the center of the front of the housing, and supplementary light holes on both sides of the lens hole and on the front of the housing, an infrared filter glass connected to the inside of the glass groove with sealant, a fourth screw hole on the back of the housing, a rear cover movably connected to the back of the housing, a third through hole on the surface of the rear cover, and the third through hole and the fourth screw hole connected by screws, a sealing ring around one side of the rear cover, a waterproof gland in the center of the other side of the rear cover, and a threaded hole on the bottom surface inside the housing.

[0009] Optionally, the structure of the camera body includes a camera lens, a fill light plate on the front of the camera lens, a plurality of fill light lamps on the front of the fill light plate, fill light lamp mounting blocks at both ends of the back of the fill light plate, a PCB mounting bracket at the bottom of the camera lens, a lens mounting block on the side of the camera lens, and the lens mounting block is connected to the PCB mounting bracket, allowing for fine adjustment of the lens distance. A power communication board is located on the upper surface of the PCB mounting bracket and on the back of the camera lens. AI computing devices are located on the upper surface of the lens mounting block and on the lower surface of the PCB mounting bracket. The AI ​​algorithm board has an Ethernet communication isolation plate on its upper surface. The PCB mounting bracket has limit posts around its perimeter. A 3mm thick thermally conductive silicone pad is attached between the AI ​​algorithm board located on the lower surface of the PCB mounting bracket and the PCB mounting bracket. The AI ​​algorithm board located on the upper surface of the lens mounting block is connected and fixed to the PCB mounting bracket through the limit posts. A 3mm thick thermally conductive silicone pad is attached between the back of the PCB mounting bracket and the inner surface of the housing to conduct the heat generated by the AI ​​algorithm board and the power communication board during operation to the housing for heat dissipation.

[0010] Optionally, the structure of the mounting bracket includes a positioning plate, a movable plate, nuts, and a bottom plate, and the nuts are welded to both sides of the positioning plate and both sides of the movable plate. The bottom surface of the movable plate and the bottom surface of the bottom plate are movably connected by screws.

[0011] Optionally, the outer side of the base plate is movably fitted with the sealing gasket on the inner side of the base plate mounting block, and the first screw hole and the second screw hole are movably connected by screws. By tightly wrapping the side of the base plate with the sealing gasket, the front end of the camera lens is movably fitted with the lens hole, the fill light component is movably fitted with the fill light hole, and the bottom of the limiting post is provided with a screw groove, and the bottom of the limiting post is connected to the threaded hole by screws, so as to portablely install the camera body inside the camera housing after assembly.

[0012] Optionally, the camera housing is made of iron alloy, which has the characteristics of high strength, fast thermal conductivity and heat dissipation; the PCB mounting bracket is made of aluminum alloy, which has high thermal conductivity and electrical insulation; and the sealing gasket and the sealing ring are made of the same material, nitrile rubber, which has the characteristics of high temperature resistance, oil solvent resistance and sealing corrosion resistance.

[0013] Optionally, the rotating hole is arched and has an adjustable angle range of 0-60°. The position of the camera body inside the camera housing is adjusted by adjusting the angle. Specifically, it is used to adjust the bottom plate horizontally on the upper surface of the movable plate. The infrared filter glass has the same shape and size as the glass groove and is bonded to the inside of the glass groove with sealant.

[0014] Optionally, the nut is made of the same material as the waterproof gland, namely 304 stainless steel, which has excellent processing performance, high temperature resistance and high toughness. The infrared filter glass is made of transparent PC, which has high transparency, good heat resistance, strong impact resistance and flame retardancy. The shell, the back cover and the mounting bracket are all made of the same material, namely carbon structural steel Q235A, with a yield strength of 235MPa, which has good plasticity, toughness and weldability. The shell has an IP65 protection rating and is dustproof and waterproof. The fill light plate mounting block and the lens mounting block are made of the same material, namely ABS, which has high strength, high toughness, electrical insulation and chemical corrosion resistance.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This intrinsically safe fatigue analysis camera for mining utilizes an independent assembly structure for the camera lens, lighting board, PCB mounting bracket, power communication board, AI algorithm board, and Ethernet communication isolation board. This avoids the need for a single, integrated structure within the camera housing, improving assembly and maintenance convenience while maintaining product sealing and heat dissipation performance, thus reducing the failure rate during traditional installation and use. After the camera body is installed in the housing, opening the bottom cover reveals an adjustable lens mounting block that allows the lens to fully contact the infrared filter glass, optimizing the assembly structure while preventing lens reflections. To mitigate the effects of supplemental lighting and reflections, the lens imaging quality is ensured. The PCB mounting bracket is made of aluminum alloy, with one side contacting the circuit board chip via a heat-dissipating silicone pad, and the other side contacting the housing via a heat-dissipating silicone pad, improving heat conduction efficiency and ensuring rapid heat dissipation and stable operation of the AI ​​algorithm board and power communication board in high-temperature environments. This enables integrated local analysis and computation, improving analysis efficiency. By incorporating sealing gaskets and sealing rings within the housing, and limiting the material application of various structures, the camera's waterproof and dustproof performance and sealing effect are improved. Furthermore, the rotating hole structure on the movable plate allows the adjustable base plate to control the angle of the base plate mounting block, facilitating the adjustment of the camera lens position. Attached Figure Description

[0017] Figure 1 This is a front view of the overall structure of the sealed intrinsically safe camera for mining according to this utility model.

[0018] Figure 2 This is a schematic diagram of the bottom and back of the overall structure of the sealed intrinsically safe camera for mining according to this utility model.

[0019] Figure 3 This is an exploded view of the front longitudinal structure of the sealed intrinsically safe camera for mining according to this utility model.

[0020] Figure 4 This is a schematic diagram of the main structure of the camera body of the sealed intrinsically safe camera for mining according to this utility model.

[0021] Figure 5 This is an exploded view of the longitudinal structure of the back of the sealed intrinsically safe camera for mining according to this utility model.

[0022] The attached diagram is labeled as follows: 1. Mounting bracket; 101. Positioning plate; 102. Movable plate; 103. Nut; 104. Base plate; 105. Rotary hole; 106. First screw hole; 2. Camera housing; 201. Housing; 202. Base plate mounting block; 203. Sealing gasket; 204. Second screw hole; 205. Glass groove; 206. Fill light hole; 207. Lens hole; 208. Rear cover; 209. Sealing ring; 2010. Waterproof grille Head; 2011, Infrared filter glass; 2012, Column groove; 2013, Third screw hole; 2014, Fourth screw hole; 3, Camera body; 301, Camera lens; 302, Fill light plate; 303, Fill light component; 304, Fill light plate mounting block; 305, PCB mounting bracket; 306, Lens mounting block; 307, AI algorithm board; 308, Power communication board; 309, Ethernet communication isolation board; 3010, Limiting post. Detailed Implementation

[0023] The technical solution of this utility model will be described in detail below through specific embodiments.

[0024] Reference Figure 1-5 As shown, this utility model discloses a sealed intrinsically safe camera structure for mining with image analysis, including a mounting bracket 1, a camera housing 2 and a camera body 3, wherein the mounting bracket 1 is movably connected to the camera housing 2, and the camera housing 2 is movably sleeved with the camera body 3;

[0025] The camera housing 2 includes a housing 201. A base plate mounting block 202 is fixedly connected to the center of the lower surface of the housing 201. Sealing gaskets 203 are fixedly connected to the four sides of the inside of the base plate mounting block 202. A second screw hole 204 is opened on the lower surface of the base plate mounting block 202. A glass groove 205 is opened on the front of the housing 201. A lens hole 207 is opened in the center of the front of the housing 201. Fill light holes 206 are opened on both sides of the lens hole 207 and on the front of the housing 201. The interior of the glass groove 205... An infrared filter glass 2011 is connected by sealant. A fourth screw hole 2014 is provided on the back of the housing 201. A rear cover 208 is movably connected to the back of the housing 201. A third through hole 2013 is provided on the surface of the rear cover 208. The third through hole 2013 and the fourth screw hole 2014 are connected by screws. A sealing ring 209 is provided around one side of the rear cover 208. A waterproof gland 2010 is provided in the middle of the other side of the rear cover 208. A threaded hole 2012 is provided on the bottom surface inside the housing 201.

[0026] Preferably, the structure of the camera body 3 includes a camera lens 301. A fill light plate 302 is provided on the front of the camera lens 301, and a plurality of fill light lamps 303 are provided on the front of the fill light plate 302. Fill light lamp mounting blocks 304 are provided at both ends of the back of the fill light plate 302. A PCB mounting bracket 305 is provided at the bottom of the camera lens 301. A lens mounting block 306 is provided on the side of the camera lens 301 and is connected to the PCB mounting bracket 305, allowing for fine adjustment of the lens distance. A power communication board 308 is provided on the upper surface of the PCB mounting bracket 305 and on the back of the camera lens 301. AI algorithms are provided on the upper surface of the lens mounting block 306 and on the lower surface of the PCB mounting bracket 305. The upper surface of the AI ​​algorithm board 307 is provided with an Ethernet communication isolation board 309. The PCB mounting bracket 305 is provided with limit posts 3010 around its perimeter. A 3mm thick thermally conductive silicone pad is attached between the AI ​​algorithm board 307 located on the lower surface of the PCB mounting bracket 305 and the PCB mounting bracket 305. The AI ​​algorithm board 307 located on the upper surface of the lens mounting block 306 is connected and fixed to the PCB mounting bracket 305 through the limit posts 3010. A 3mm thick thermally conductive silicone pad is attached between the back of the PCB mounting bracket 305 and the inner surface of the housing 201. This is used to conduct the heat generated by the AI ​​algorithm board 307 and the power communication board 308 during operation to the housing 201 for heat dissipation through the thick thermally conductive silicone pad attached to the PCB mounting bracket 305.

[0027] Preferably, the structure of the mounting bracket 1 includes a positioning plate 101, a movable plate 102, a nut 103, and a bottom plate 104. Nuts 103 are welded to both sides of the positioning plate 101 and both sides of the movable plate 102. The bottom surface of the movable plate 102 and the bottom surface of the bottom plate 104 are connected by screws.

[0028] Preferably, the outer side of the base plate 104 is movably fitted with the sealing gasket 203 on the inner side of the base plate mounting block 202, and the first screw hole 106 and the second screw hole 204 are movably connected by screws. By using the sealing gasket 203 to tightly wrap the side of the base plate 104, the sealing effect is improved. The front end of the camera lens 301 is movably fitted with the lens hole 207, the supplementary light component 303 is movably fitted with the supplementary light hole 206, and the bottom of the limiting post 3010 is provided with a screw groove. The bottom of the limiting post 3010 is connected to the threaded hole 2012 by screws. This is used to install the camera body 3 inside the camera housing 2 after it is assembled, so that it can be easily removed from the camera housing 2 for regular maintenance of the camera body 3.

[0029] Preferably, the camera housing 2 is made of iron alloy, which has the characteristics of high strength, high thermal conductivity and fast heat dissipation, and is used for explosion protection and heat dissipation. The PCB mounting bracket 305 is made of aluminum alloy, which has high thermal conductivity and electrical insulation, and is used to transfer the heat generated by the power communication board 308 and the PCB mounting bracket 305 to achieve heat dissipation, and can also provide electrical isolation protection. The sealing gasket 203 and the sealing ring 209 are made of the same material, nitrile rubber, which has the characteristics of high temperature resistance, oil solvent resistance and sealing corrosion resistance, and is suitable for mine conditions.

[0030] Preferably, the rotating hole 105 is arched in shape and has an adjustable angle range of 0-60°. The position of the camera body 3 inside the camera housing 2 is controlled by adjusting the angle. Specifically, it is used to adjust the bottom plate 104 horizontally on the upper surface of the movable plate 102. The shape of the infrared filter glass 2011 is the same as that of the glass groove 205 and the same size. The infrared filter glass 2011 is bonded to the inside of the glass groove 205 with sealant to achieve a sealing and dustproof effect.

[0031] Preferably, the nut 103 is made of the same material as the waterproof gland 2010, namely 304 stainless steel, which has excellent processing performance, high temperature resistance, and high toughness, and is used to meet the requirements for safe use in hazardous mining environments. The infrared filter glass 2011 is made of transparent PC, which has high transparency, good heat resistance, strong impact resistance, and flame retardancy, and is used to effectively transmit and diffuse light without affecting the image and video captured by the camera lens 301. The materials of the housing 201, the back cover 208, and the mounting bracket 1 are all the same, namely carbon structural steel Q23. 5A, meaning a yield strength of 235MPa, possesses good plasticity, toughness, and weldability, meeting the intrinsic safety requirements for mining applications. The housing 201 has an IP65 protection rating, providing dust and water resistance, preventing not only the intrusion of foreign objects and dust but also splashing water. The supplementary light mounting block 304 and the lens mounting block 306 are made of the same material, ABS, which features high strength, high toughness, electrical insulation, and chemical corrosion resistance, ensuring that the camera absorbs energy when impacted, is not easily broken, and has stable performance.

[0032] Working principle: Step 1: First, connect the camera lens 301 using the lens mounting block 306, and assemble the camera lens 301, power communication board 308, fill light component 303, two AI algorithm boards 307 and limiting post 3010 on the PCB mounting bracket 305. Then, install the fill light board 302 and fill light board mounting block 304 on the front end of the camera lens 301. When the camera lens 301 is working to collect images and videos, the AI ​​algorithm board 307 and power communication board 308 on the PCB mounting bracket 305 perform data analysis and processing. The heat generated is transferred to the housing 201 through the PCB mounting bracket 305 for heat conduction and heat dissipation.

[0033] Step 2: Perform various performance tests on the assembled camera body 3. After the performance tests are passed, install it into the housing 201. Align the camera lens 301 with the lens hole 207 and align the fill light 303 with the fill light hole 206. Adjust the position of the camera body 3 from inside the base plate mounting block 202 and insert the entire camera body 3 into the housing 201. Tighten the screws through the threaded hole 2012 into the limit post 3010. After the camera body 3 is stably installed inside the housing 201, seal the infrared filter glass 2011 into the glass groove 205 with sealant. Tighten the screws through the third through hole 2013 into the fourth screw hole 2014. This ensures that the sealing ring 209 on the back cover 208 is tightly inserted into the back of the housing 201 and that the back cover 208 is tightly connected to the housing 201.

[0034] Step 3: After the camera housing 2 and the camera body 3 are assembled, use screws to connect the base plate 104 and the movable plate 102, and use nuts 103 to connect the positioning plate 101 and the movable plate 102. Then, use screws to pass through the first screw hole 106 and tighten them into the second screw hole 204, so that the base plate 104 is inserted into the base plate mounting block 202, and the sealing gasket 203 tightly wraps around the base plate 104, so that the base plate 104 and the base plate mounting block 202 can be sealed and connected. Finally, the position of the camera housing 2 can be adjusted through the rotating hole 105.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealed mine intrinsically safe video camera with image analysis, characterized in that: Including installation support (1), camera shell (2) and camera main part (3), and installation support (1) with camera shell (2) movable connection, camera shell (2) with camera main part (3) movable sleeve joint; The structure of the camera shell (2) includes a housing (201), a bottom plate mounting block (202) is fixedly connected to the middle of the lower surface of the housing (201), a sealing gasket (203) is fixedly connected to the inside of the bottom plate mounting block (202), a second threaded hole (204) is formed in the lower surface of the bottom plate mounting block (202), a glass groove (205) is formed in the front surface of the housing (201), a lens hole (207) is formed in the middle of the front surface of the housing (201), light supplement lamp holes (206) are formed on both sides of the lens hole (207) and on the front surface of the housing (201), an infrared filter glass (2011) is connected to the inside of the glass groove (205) with sealing glue, a fourth threaded hole (2014) is formed in the back surface of the housing (201), a rear cover (208) is movably connected to the back surface of the housing (201), a third through hole (2013) is formed in the surface of the rear cover (208), and the third through hole (2013) is connected to the fourth threaded hole (2014) by a screw, a sealing ring (209) is arranged around one side of the rear cover (208), a waterproof gland (2010) is arranged in the middle of the other side of the rear cover (208), and a threaded hole (2012) is formed in the bottom surface of the inside of the housing (201).

2. The sealed mine camera with image analysis according to claim 1, characterized in that: The structure of the camera body (3) comprises a camera lens (301), the front surface of the camera lens (301) is provided with a light supplement plate (302), the front surface of the light supplement plate (302) is provided with a plurality of light supplement lamp pieces (303), the two ends of the back surface of the light supplement plate (302) are provided with light supplement lamp plate mounting blocks (304), the bottom of the camera lens (301) is provided with a PCB mounting bracket (305), the side surface of the camera lens (301) is provided with a lens mounting block (306), the lens mounting block (306) is connected to the PCB mounting bracket (305), is located on the upper surface of the PCB mounting bracket (305) and is located on the back surface of the camera lens (301) and is provided with a power communication board (308), the upper surfaces of the AI algorithm boards (307) located on the upper surface of the lens mounting block (306) and the lower surface of the PCB mounting bracket (305) are provided with an Ethernet communication isolation board (309), the periphery of the PCB mounting bracket (305) is provided with a limiting column (3010), the AI algorithm board (307) located on the lower surface of the PCB mounting bracket (305) is pasted with a 3mm thick heat-conducting silica gel pad between the AI algorithm board (307) and the PCB mounting bracket (305), the AI algorithm board (307) located on the upper surface of the lens mounting block (306) is connected and fixed with the PCB mounting bracket (305) through the limiting column (3010), and the back surface of the PCB mounting bracket (305) is pasted with a 3mm thick heat-conducting silica gel pad between the back surface of the PCB mounting bracket (305) and the inner surface of the shell (201).

3. The sealed mine camera with image analysis according to claim 2, characterized in that: The structure of the mounting bracket (1) comprises a positioning plate (101), a movable plate (102), a nut (103) and a bottom plate block (104), the two side surfaces of the positioning plate (101) and the two side surfaces of the movable plate (102) are both welded with the nut (103), and the bottom surface of the movable plate (102) and the bottom surface of the bottom plate block (104) are connected through screw penetration.

4. The sealed mine camera with image analysis according to claim 3, characterized in that: The outer side surface of the bottom plate block (104) is movably sleeved with the sealing gasket (203) of the inner side surface of the bottom plate mounting block (202), the first screw hole (106) and the second screw hole (204) are movably connected through a screw, the front end of the camera lens (301) is movably sleeved with the lens hole (207), the light supplement lamp piece (303) is movably sleeved with the light supplement lamp hole (206), and the bottom of the limiting column (3010) is provided with a screw groove, and the bottom of the limiting column (3010) is connected with the threaded hole (2012) through a screw.

5. The sealed mine camera with image analysis according to claim 4, characterized in that: The material of the camera shell (2) is iron alloy, the material of the PCB mounting bracket (305) is aluminum alloy, and the materials of the sealing gasket (203) and the sealing ring (209) are the same, which are both nitrile rubber.

6. The sealed mine camera with image analysis according to claim 4, characterized in that: The shape of the through hole (105) is arched, and the adjustable angle range is 0-60°. The shape of the infrared filter glass (2011) is the same as that of the glass groove (205), and the size is consistent.

7. The sealed mine camera with image analysis according to claim 4, characterized in that: The material of the nut (103) is the same as that of the waterproof gland head (2010), which is 304 stainless steel. The material of the infrared filter glass (2011) is transparent PC. The material of the shell (201), the material of the rear cover (208) and the material of the mounting bracket (1) are the same, which is carbon structural steel Q235A, that is, the yield strength is 235MPa. The protection grade of the shell (201) is IP65. The material of the light supplement lamp plate mounting block (304) and the material of the lens mounting block (306) are the same, which is ABS material.

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