Intelligent anti-fouling video monitoring equipment and video monitoring system

Abstract

The present application relates to an intelligent anti-fouling video monitoring device, which belongs to the field of video monitoring processing equipment, and includes a camera device body, which includes a lens, a protective cover and a protective lens, and the protective cover is provided with a dust detection element, a controller and a wind curtain assembly; the dust detection element and the wind curtain assembly are both connected to the controller signal; the dust detection element is located on the side of the protective lens facing away from the lens, and the dust detection element is used to detect the dust concentration in the air on the side of the protective lens facing away from the lens and transmit the dust concentration value to the controller; the wind curtain assembly is used to form a wind curtain on the side of the protective lens facing away from the lens and purge the surface of the side of the protective lens facing away from the lens; the controller can control the wind curtain assembly to start and close. The present application also discloses a video monitoring system, which has the effect of blocking dust in sandstorm weather, making it difficult for dust to adhere to the protective lens, and maintaining the clarity of the video screen shot by the camera device.

Description

Technical Field

[0001] The present application relates to the field of video monitoring processing equipment, and in particular to an intelligent anti-fouling video monitoring device and a video monitoring system. Background Art

[0002] Video surveillance is an important part of the security system. It is a comprehensive system with strong prevention capabilities. Video surveillance is widely used in many occasions because of its intuitiveness, accuracy, timeliness and rich information content.

[0003] Video surveillance systems generally consist of the following three parts:

[0004] Ⅰ. Front-end part: mainly composed of camera device, lens, pan / tilt head, protective cover, bracket, decoder, etc.

[0005] Ⅱ. Transmission part: Use cables and wires to transmit video, audio or control signals by overhead, underground or wall-laid methods.

[0006] III. Terminal part: mainly composed of screen splitter, monitor, control equipment, video storage device, etc.

[0007] When a video surveillance system is in use, the camera is generally installed within the area that needs to be monitored. Since the camera is mostly installed outdoors and is exposed to harsh outdoor environments for a long time, such as sandstorms and dusty weather, the dust concentration in the air increases rapidly, causing a large amount of dust to quickly accumulate on the lens surface of the camera. If the dust accumulated on the lens surface is not cleaned in time, the adhesion of the sand will cause refraction of light and form a scattering phenomenon, thereby reducing the clarity of the picture and causing the monitored picture to be unclear. Summary of the invention

[0008] In order to prevent sand and dust from adhering to the protective lens during dusty weather and maintain the clarity of the video images shot by the camera device, the present application provides an intelligent anti-fouling video monitoring device and a video monitoring system.

[0009] The intelligent anti-fouling video monitoring device provided in this application adopts the following technical solution:

[0010] An intelligent anti-fouling video monitoring device comprises a camera device body, the camera device body comprises a lens, a protective cover and a protective lens, the lens is mounted on the inner side of the protective cover, the protective lens is mounted on the front end of the protective cover, and a sand and dust detection element, a controller and a wind curtain assembly are arranged on the protective cover;

[0011] The dust detection element and the air curtain assembly are both connected to the controller signal;

[0012] The dust detection element is located on the side of the protective lens facing away from the lens, and is used to detect the dust concentration in the air on the side of the protective lens facing away from the lens and transmit the dust concentration value to the controller;

[0013] The wind curtain assembly is used to form a wind curtain on the side of the protective lens facing away from the lens and to blow the surface of the side of the protective lens facing away from the lens;

[0014] The controller can control the air curtain assembly to start and close.

[0015] By adopting the above technical solution, the dust detection element can detect the dust concentration in the air in the space environment on the side of the protective lens facing away from the lens, and transmit the detected data to the controller. When the dust concentration value detected by the dust detection element exceeds the preset normal dust concentration, the controller controls the wind curtain assembly to open, and the wind curtain assembly blows out a wind curtain to the side of the protective lens facing away from the lens, thereby blocking the dust from contacting the protective lens. At the same time, the wind curtain blown out by the wind curtain assembly sweeps the surface of the protective lens, which can blow off the dust attached to the protective lens, reduce the dust attached to the protective lens, and achieve the purpose of maintaining the clarity of the surveillance video.

[0016] Optionally, the wind curtain assembly includes a wind curtain former for forming a wind curtain and a fan for supplying air to the wind curtain former, the fan and the wind curtain former are connected through an air supply pipe, and the wind curtain former is located on the side of the protective lens facing away from the lens.

[0017] By adopting the above technical solution, the wind curtain former is located on the side of the protective lens facing away from the lens, so that the wind curtain blown by the wind curtain former can effectively prevent sand and dust from contacting the surface of the protective lens facing away from the lens, thereby achieving a dust and dirt prevention effect.

[0018] Optionally, the wind curtain former includes an inclined shell, an air storage cavity is provided inside the shell, a wind curtain forming opening connected to the air storage cavity is provided at the bottom end of the shell, and the wind curtain forming opening is opposite to the side surface of the protective lens facing away from the lens.

[0019] By adopting the above technical solution, the wind curtain generated by the wind curtain former can directly blow air onto the surface of the protective lens, which can not only form a wind curtain on the surface of the protective lens to isolate sand and dust, but also blow off the sand and dust attached to the surface of the protective lens, thereby achieving the effect of cleaning the protective lens.

[0020] Optionally, the width of the air curtain forming opening gradually widens from the air inlet end to the air outlet end.

[0021] By adopting the above technical solution, the range of wind blowing out from the opening of the wind curtain becomes wider, thereby increasing the effective range of the wind curtain. As the effective range of the wind curtain increases, sand and dust are less likely to come into contact with the protective lens, thereby improving the dust-proof effect of the wind curtain.

[0022] Optionally, a dust screen is provided at the opening where the air curtain is formed.

[0023] By adopting the above technical solution, the dust content in the wind curtain sprayed through the wind curtain forming port is reduced, and the dust carried by the wind curtain itself is reduced, so that when the surface of the protective lens is blown, the surface of the protective lens can be better cleaned.

[0024] Optionally, the air curtain former is rotatably connected to the protective cover via a rotating shaft, a driving mechanism for driving the air curtain former to swing back and forth up and down is provided on the protective cover, and the air supply pipe is a flexible hose.

[0025] By adopting the above technical solution, the driving mechanism drives the wind curtain former to swing back and forth up and down, so that the wind curtain sprayed by the wind curtain former sweeps up and down. When the wind curtain sweeps up and down, it can speed up the flow in the space on the side of the protective lens away from the lens, so that the air with sand and dust can be blown away more quickly. At the same time, due to the up and down sweeping of the wind curtain, the sand and dust on the surface of the protective lens can be better swept away, so that the sand and dust can be blown off the protective lens more easily.

[0026] Optionally, the air curtain former is provided with a convex rod, the convex rod is vertically arranged with respect to the rotating shaft, the convex rod is provided with an adjustment slot, the length direction of the adjustment slot is arranged in the opposite direction of the length of the convex rod, a moving roller is slidably connected inside the adjustment slot, the moving roller can move in the adjustment slot along the length direction of the adjustment slot, and the moving roller can also rotate in the adjustment slot;

[0027] The driving mechanism includes a reciprocating screw rotatably connected to the protective cover, a screw nut is threadedly connected to the reciprocating screw, a driving motor for driving the reciprocating screw to rotate is arranged at one end of the reciprocating screw, a connecting rod is arranged between the screw nut and the movable roller, one end of the connecting rod is connected to the screw nut, and the other end of the connecting rod is connected to the movable roller.

[0028] By adopting the above technical solution, when the reciprocating screw is driven by the driving motor to rotate, the screw nut on the reciprocating screw will reciprocate along the axial direction of the reciprocating screw. As the screw nut reciprocates, the wind curtain former is driven to swing under the linkage of the protruding rod and the connecting rod, thereby realizing the up and down sweeping of the wind curtain.

[0029] The video surveillance system provided in this application adopts the following technical solution:

[0030] A video monitoring system comprises the intelligent anti-fouling video monitoring device and a terminal device. The intelligent anti-fouling video monitoring device transmits the captured video to the terminal device via a signal transmission device.

[0031] By adopting the above technical solution, the video surveillance system can maintain clear video for a long time and reduce the cleaning work of personnel on video surveillance processing equipment.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The wind curtain is used to prevent the dust from contacting the protective lens. At the same time, the wind curtain blown out by the wind curtain assembly sweeps the surface of the protective lens, which can blow off the dust attached to the protective lens and reduce the dust attached to the protective lens, thereby achieving the purpose of maintaining the clarity of the surveillance video.

[0034] 2. The driving mechanism drives the wind curtain former to swing back and forth up and down, so that the wind curtain sprayed by the wind curtain former sweeps up and down. When the wind curtain sweeps up and down, it can speed up the flow in the space on the side of the protective lens away from the lens, so that the air with sand and dust can be blown away more quickly. At the same time, due to the up and down sweeping of the wind curtain, the sand and dust on the surface of the protective lens can be better swept, so that the sand and dust can be blown off the protective lens more easily. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the intelligent anti-fouling video monitoring device of the first embodiment of the present application;

[0036] Figure 2 It is a schematic diagram of the structure of the outer side of the protective cover of the first embodiment of the present application;

[0037] Figure 3 is a cross-sectional view of an air curtain former according to Embodiment 1 of the present application;

[0038] Figure 4 This is a schematic diagram of the structure of the outer side of the protective cover of the intelligent anti-fouling video monitoring device of the second embodiment of the present application;

[0039] Figure 5 is a schematic diagram of the connection structure between the air curtain former and the driving mechanism of the second embodiment of the present application;

[0040] Figure 6 It is a schematic diagram of the partial structure at the front end of the outer side of the protective cover of the second embodiment of the present application;

[0041] Figure 7It is a structural diagram of the intelligent anti-fouling video monitoring device of the second embodiment of the present application;

[0042] Figure 8 It is a structural diagram of the video surveillance system in an embodiment of the present application.

[0043] Explanation of the reference numerals: 1. Camera device body; 11. Lens; 12. Protective cover; 121. Extension; 122. Cover body; 1221. Ventilation hole; 13. Protective lens; 2. Dust detection sensor; 3. Controller; 4. Wind curtain assembly; 41. Wind curtain former; 411. Shell; 412. Air storage cavity; 413. Wind curtain forming opening; 414. Protruding rod; 4141. Adjusting groove; 415. Moving roller; 42. Fan; 43. Air supply duct; 44. Dust screen; 5. Rotating shaft; 6. Driving mechanism; 61. Reciprocating screw; 62. Screw nut; 63. Driving motor; 64. Connecting rod; 7. Terminal device; 8. Signal transmission device. DETAILED DESCRIPTION

[0044] The following is combined with Figure 1-8 This application is described in further detail.

[0045] Embodiment 1

[0046] The embodiment of the present application discloses an intelligent anti-fouling video monitoring device.

[0047] Reference Figure 1 , Figure 2 The intelligent anti-fouling video monitoring device includes a camera body 1, which includes a lens 11, a protective cover 12, and a transparent protective lens 13. The lens 11 is installed inside the protective cover 12, and the protective lens 13 is installed at the front end of the protective cover 12. The protective lens 13 can protect the lens 11 installed inside the protective cover 12, reduce the impact of the external environment on the lens 11, and will not affect the normal operation of the lens 11. The front end of the protective cover 12 is provided with an extension portion 121 extending to the outside of the outer surface of the protective lens 13, and the extension portion 121 and the protective cover 12 are integrally formed.

[0048] The intelligent anti-fouling video monitoring device also includes a dust detection sensor 2 installed on the lower surface of the extension part 121, a controller 3 installed on the outer surface of the protective cover 12, and a wind curtain assembly 4 installed on the protective cover 12 for forming a wind curtain on the side of the protective lens 13 facing away from the lens 11. The dust detection sensor 2 and the wind curtain assembly 4 are both connected to the controller 3 by signals. The dust detection sensor 2 is used to detect the dust concentration in the air of the space on the side of the protective lens 13 facing away from the protective lens, and transmit the detected value to the controller 3. The controller 3 can also control the wind curtain assembly 4 to control the opening and closing of the wind curtain assembly 4.

[0049] During operation, the controller 3 presets a dust concentration in the air under a normal environment. When the dust concentration detected by the dust detection sensor 2 is greater than the preset dust concentration value, the controller 3 controls the air curtain assembly 4 to open and keeps the air curtain assembly 4 in a normally open state. When the dust concentration detected by the dust detection sensor 2 again is equal to or less than the preset dust concentration value, the controller 3 controls the air curtain assembly 4 to close.

[0050] Reference Figure 2 , Figure 3 The wind curtain assembly 4 includes a wind curtain former 41 fixed to the inner side of the extension portion 121 and a fan 42 fixed to the outer side of the protective cover 12. The air outlet of the fan 42 is connected to the wind curtain former 41 through an air supply pipe 43. The air supply pipe 43 is sealed and fixedly connected to the wind curtain former 41 and the fan 42. The wind flow blown out by the fan 42 is sent into the wind curtain former 41 after passing through the air supply pipe 43, and then discharged from the wind curtain former 41 in the form of a wind curtain, and the formed wind curtain can sweep the outer surface of the protective lens 13.

[0051] The air curtain former 41 includes a shell 411 inside the fixed extension part 121, and a hollow air storage cavity 412 is arranged inside the shell 411. The air storage cavity 412 is connected to the air supply pipe 43, and the wind flowing through the air supply pipe 43 is sent into the air storage cavity 412. A long strip of air curtain forming opening 413 is opened at the bottom end of the shell 411, and the air curtain forming opening 413 is connected to the air storage cavity 412. The width of the air curtain forming opening 413 gradually widens from the air inlet end to the air outlet end. By gradually widening the width of the air curtain forming opening 413, the range of the wind when it is ejected through the air curtain forming opening 413 is increased, forming a wider air curtain, and increasing the blowing range of the air curtain.

[0052] The shell 411 is placed at an angle during installation, and the wind curtain forming opening 413 of the shell 411 is opposite to the outer surface of the protective lens 13. When the wind curtain is sprayed out from the wind curtain forming opening 413, the wind curtain isolates the sand and dust while blowing the outer surface of the protective lens 13, thereby blowing away the sand and dust originally attached to the protective lens 13.

[0053] A dust blocking net 44 is installed inside the air curtain forming opening 413 . The dust blocking net 44 is fixed to the housing 411 by bolts. The dust blocking net 44 can intercept the sand and dust contained in the blown air curtain.

[0054] Reference Figure 1 , Figure 2 A cover body 122 is provided on the outside of the protective cover 12 to cover the fan 42 and the air supply pipe 43, and the cover body 122 is fixed to the protective cover 12 by bolts. A plurality of ventilation holes 1221 are provided on the cover body 122, and the ventilation holes 1221 connect the inside of the cover body 122 with the outside.

[0055] The implementation principle of the intelligent anti-fouling video monitoring device of the embodiment of the present application is as follows: the dust detection sensor 2 monitors the air outside the protective lens 13 in real time, and transmits the detected dust concentration value to the controller 3. The controller 3 sets the normal value of the dust concentration in advance. When the dust concentration value detected by the dust detection sensor 2 exceeds the pre-set normal value of the dust concentration, the controller 3 controls the wind curtain assembly 4 to start, and the wind curtain former 41 sprays the wind curtain to blow the dust floating in the air outside the protective lens 13 away from the protective lens 13, and the sprayed wind curtain cleans the outer surface of the protective lens 13. When the dust concentration value detected by the dust detection sensor 2 is lower than the pre-set normal value of the dust concentration, the controller 3 controls the wind curtain assembly 4 to close.

[0056] Embodiment 2

[0057] The embodiment of the present application discloses an intelligent anti-fouling video monitoring device.

[0058] Reference Figure 4 , Figure 5 The difference between the second embodiment and the first embodiment is that the top of the air curtain former 41 is rotatably connected to the inner side of the extension part 121 through the rotating shaft 5. The air inlet pipe connecting the air curtain former 41 and the fan 42 adopts a hose. The air curtain former 41 is provided with a protruding rod 414 that penetrates the extension part 121, and the protruding rod 414 is integrally formed with the air curtain former 41. The protruding rod 414 is vertically arranged with the rotating shaft 5. The extension part 121 is provided with a through hole for the protruding rod 414 to pass through, and the protruding rod 414 can swing back and forth inside the through hole.

[0059] Reference Figure 5 , Figure 6 An adjusting groove 4141 is provided on the convex rod 414, and the length direction of the adjusting groove 4141 is arranged along the length direction of the convex rod 414. A moving roller 415 is slidably connected inside the adjusting groove 4141, and the moving roller 415 is cylindrical, so that the moving roller 415 can rotate around its own axis in the adjusting groove 4141. The moving roller 415 can move inside the adjusting groove 4141 along the length direction of the adjusting groove 4141.

[0060] A driving mechanism 6 is provided on the outer side of the protective cover 12, and the driving mechanism 6 is used to drive the air curtain former 41 to swing back and forth. When the air curtain former 41 swings back and forth, the air curtain blown out by the air curtain former 41 can sweep the outer surface of the protective lens 13 up and down, thereby more effectively blowing away the sand and dust attached to the surface of the protective lens 13.

[0061] The driving mechanism 6 includes a reciprocating screw 61 rotatably connected to the outside of the protective cover 12, and the axial direction of the reciprocating screw 61 is set from the front end of the protective cover 12 to the rear end of the protective cover 12. A screw nut 62 is threadedly connected to the reciprocating screw 61, and when the reciprocating screw 61 rotates, the screw nut 62 reciprocates on the reciprocating screw 61 along the axial direction of the reciprocating screw 61.

[0062] A driving motor 63 is provided at a section of the reciprocating screw 61 toward the rear end of the protective cover 12 . The driving motor 63 is fixed on the protective cover 12 . The motor shaft of the driving motor 63 is coaxially opposite to and fixed to the reciprocating screw 61 .

[0063] A connecting rod 64 is provided between the lead screw nut 62 and the protruding rod 414 of the air curtain former 41, one end of the connecting rod 64 is hinged to the lead screw nut 62, and the other end of the connecting rod 64 is hinged to the moving roller 415. When the lead screw nut 62 reciprocates along the axial direction of the reciprocating lead screw 61, the connecting rod 64 pulls the moving roller 415 to move inside the adjusting groove 4141, and the air curtain former 41 reciprocates under the joint drive of the connecting rod 64 and the moving roller 415.

[0064] Reference Figure 6 , Figure 7 The cover body 122 covers the driving motor 63, the reciprocating screw 61, the screw nut 62 and the connecting rod 64 inside.

[0065] The implementation principle of the intelligent anti-fouling video monitoring device of the embodiment of the present application is: the driving mechanism 6 drives the wind curtain former 41 to swing up and down to sweep the wind, thereby increasing the blowing range of the wind curtain, so as to better blow away the sand and dust floating in the air and keep the dust away from the protective lens 13. At the same time, the wind curtain former 41 swings up and down to sweep the wind, which can sweep the outer surface of the protective lens 13 more comprehensively and reduce the blind spots of sweeping.

[0066] The present application also discloses a video monitoring system, referring to Figure 8 The video monitoring system includes any one or more of the intelligent anti-pollution video monitoring equipment in the first embodiment or the second embodiment and the terminal device 7. The intelligent anti-pollution video monitoring equipment is connected to the terminal device 7 via the signal transmission device 8. The intelligent anti-pollution video monitoring equipment transmits the captured video to the terminal device 7 via the signal transmission device 8.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent anti-fouling video monitoring device, comprising a camera device body (1), the camera device body (1) comprising a lens (11), a protective cover (12) and a protective lens (13), the lens (11) being mounted on the inner side of the protective cover (12), the protective lens (13) being mounted on the front end of the protective cover (12), characterized in that: The protective cover (12) is provided with a sand and dust detection element, a controller (3) and an air curtain assembly (4); The dust detection element and the wind curtain assembly (4) are both connected to the controller (3) by signals; The dust detection element is located on a side of the protective lens (13) facing away from the lens (11), and is used to detect the dust concentration in the air on the side of the protective lens (11) facing away from the lens (11) and transmit the dust concentration value to the controller (3); The wind curtain assembly (4) is used to form a wind curtain on the side of the protective lens (13) facing away from the lens (11) and to blow the surface of the side of the protective lens (13) facing away from the lens (11); The controller (3) is capable of controlling the air curtain assembly (4) to start and stop; The wind curtain assembly (4) comprises a wind curtain former (41) for forming a wind curtain and a fan (42) for supplying air to the wind curtain former (41), the fan (42) and the wind curtain former (41) are connected via an air supply pipe (43), and the wind curtain former (41) is located on a side of the protective lens (13) facing away from the lens (11); The wind curtain former (41) comprises a shell (411) arranged at an angle, an air storage cavity (412) being arranged inside the shell (411), a wind curtain forming opening (413) communicating with the air storage cavity (412) being arranged at the bottom end of the shell (411), and the wind curtain forming opening (413) being opposite to a side surface of the protective lens (13) facing away from the lens (11).

2. The intelligent anti-fouling video monitoring device according to claim 1, characterized in that: The width of the air curtain forming opening (413) gradually widens from the air inlet end to the air outlet end.

3. The intelligent anti-fouling video monitoring device according to claim 2, characterized in that: A dust-blocking net (44) is provided at the air curtain forming opening (413).

4. A video surveillance system, characterized in that: It comprises the intelligent anti-fouling video monitoring device as described in any one of claims 1 to 3 and a terminal device (7), wherein the intelligent anti-fouling video monitoring device transmits the captured video to the terminal device (7) via a signal transmission device (8).

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