A monitoring device and method for identifying a human image in a building

Abstract

This invention provides a building-based facial recognition monitoring device and method, belonging to the technical field of monitoring devices. It includes a mounting box; a monitoring camera rotatably connected to the inner wall of the mounting box via a hinge, with two lenses fixedly mounted on the side of the camera; a washing box fixedly connected to the side of the mounting box and communicating with it; and a washing ring fixedly connected to the side of the mounting box, corresponding to the washing box. A transmission gear, through meshing with two driven springs, drives two pins to rotate, thereby causing two brush heads to rotate. The two brush heads, through rotation, brush away water mist from the two lenses, thus wiping away the water mist. This prevents the camera lenses from being blocked by water mist condensation when the monitoring device is installed at the entrance of an underground parking lot, avoiding a decrease in camera clarity and allowing the monitoring equipment to adapt to humid weather conditions, improving camera clarity.

Description

Technical Field

[0001] The present invention belongs to the technical field of monitoring devices, and particularly relates to a monitoring device and method for identifying human faces in buildings. Background Technique

[0002] Building, a noun, refers to a building or a large building. The character "楼" in ancient Chinese means "a building set at a high place", and the character "宇" in ancient Chinese also means a house or an eaves. Literally speaking, a building refers to a tall building.

[0003] Human face recognition, also called face recognition, specifically refers to the computer technology of using the analysis and comparison of human face visual feature information for identity authentication. The advantage of human face recognition lies in its naturalness and the characteristics that are not perceived by the measured individual. Generally speaking, human face recognition actually includes a series of related technologies for constructing a human face recognition system, including human face image acquisition, human face positioning, preprocessing of human face recognition, identity confirmation, and identity search, etc.; while狭义的人像识别特指通过人脸进行身份确认或者身份查找的技术或系统。

[0004] A typical television monitoring system mainly consists of two major parts: front-end equipment and back-end equipment. The front-end equipment usually consists of components such as cameras, manual or motorized lenses, pan-tilt heads, protective covers, microphones, alarm detectors, and multi-functional decoders. They each perform their own functions and establish corresponding connections (transmitting video / audio signals and control and alarm signals) with various devices in the central control system through wired, wireless, or fiber optic transmission media. In an actual television monitoring system, these front-end equipment do not necessarily need to be used simultaneously, but cameras and lenses for realizing the acquisition of on-site monitoring images are essential. The back-end equipment can be further divided into central control equipment and sub-control equipment, and the monitoring device generally refers to various devices used in the monitoring system.

[0005] The authorized publication number "CN111692474A" records "a monitoring device for identifying human faces used in a building automation system, including a vertical plate, a sliding plate, and a camera body. An installation plate is installed on the side of the vertical plate, and a horizontal plate is fixed in the middle position of the installation plate, and the horizontal plate and the installation plate are connected by welding. A first connecting shaft penetrates through the inside of the horizontal plate, and a first rotating shaft is connected to the end of the first connecting shaft. One end of a first connecting rod is arranged on the outer side of the first rotating shaft. The other end of the first connecting rod is connected to a second connecting rod, and a first sleeve is nested in the middle position of the second connecting rod. A storage groove is formed on the surface of the second connecting rod, and a first spring is arranged inside the storage groove. In the process of using this monitoring device for identifying human faces used in the building automation system, the limitation of acquisition is relatively low, and it is convenient to disassemble and repair the image acquisition unit, reducing the limitation of the device in use."

[0006] The aforementioned patent acquires images through a camera unit. During acquisition, a servo motor drives a first gear to rotate, which in turn drives a second gear. Since the second gear is fixedly connected to the second connecting shaft, the second connecting shaft rotates along with it. Simultaneously, the second connecting shaft is engaged with the second sleeve plate, allowing the camera body to rotate via the second sleeve plate when the second connecting shaft rotates. This enables the acquisition of images from different angles. During acquisition, the camera body drives the sleeve and support rod to slide within the first groove around the second connecting shaft, preventing any restrictive forces and ensuring normal operation. However, as a facial recognition surveillance camera, it is highly dependent on camera clarity. In humid basement exits (e.g., underground parking lots), the camera lens is easily obscured by condensation during humid weather, reducing camera clarity. This renders existing surveillance equipment ineffective in handling the damp conditions of humid weather, leading to decreased camera clarity. Therefore, we propose a building facial recognition surveillance device and method. Summary of the Invention

[0007] The purpose of this invention is to provide a building-based facial recognition monitoring device and method, which aims to solve the problem that existing monitoring equipment cannot cope with the humid weather of "return to spring" and thus the camera's clarity is reduced.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A building-based facial recognition surveillance device, including a mounting box;

[0010] The surveillance camera is rotatably connected to the inner wall of the mounting box via a movable hinge, and two lenses are fixedly installed on the side of the surveillance camera.

[0011] A washing box, which is fixedly connected to the side of the mounting box and is in communication with the mounting box;

[0012] A scrubbing ring, fixedly connected to the side of the mounting box, corresponding to the scrubbing box, with two brush heads disposed between the inner walls of the scrubbing ring; and

[0013] A linkage mechanism is disposed between the inner walls of the mounting box. The linkage mechanism is connected to the monitoring camera and two brush heads to move and wipe the two lenses.

[0014] In a preferred embodiment of the present invention, the linkage mechanism includes a pushing component, a guiding component, a rotating component, an elastic component, and a resetting component. The pushing component is disposed on the top of the mounting box and is connected to the monitoring camera and the support plate. The guiding component is disposed on the inner wall of the mounting box and is connected to the monitoring camera. The rotating component is disposed between the inner walls of the washing box and is connected to two brush heads. Two sets of elastic components are disposed between the inner walls of the washing box and are both connected to the rotating component. The resetting component is disposed between the inner walls of the mounting box and is connected to the monitoring camera.

[0015] In a preferred embodiment of the present invention, the pushing assembly includes a sliding groove, a U-shaped slide rail, a limiting groove, a pushing motor, a lead screw, a slider, a limiting block, a pressing block, a limiting plate, and a pushing ring. The sliding groove is formed on the top of the mounting box and communicates with the inner wall of the mounting box. The U-shaped slide rail is fixedly connected to the top of the mounting box and corresponds vertically to the sliding groove. The pushing motor is fixedly connected to the top of the mounting box. The lead screw is fixedly connected to the output end of the pushing motor and extends to the inner wall of the U-shaped slide rail. The extended end of the lead screw is rotatably connected to the inner wall of the U-shaped slide rail. The slider is fitted onto the circumferential surface of the lead screw, and the bottom of the slider is in contact with the monitoring camera. Two limiting grooves are provided, which are formed on the inner wall of the U-shaped slide rail. Two limiting blocks are provided, which slide within the two limiting grooves and are connected to the slider. The push ring is fixedly connected to the side end of the support plate, and the extrusion block is fixedly connected to the side end of the slider. The slider corresponds to the push ring. Two limiting plates are provided, which are fixedly connected to the inner wall of the mounting box and are located on both sides of the extrusion block.

[0016] As a preferred embodiment of the present invention, the guiding component includes guide posts and guide rails. Two guide rails are provided and fixedly connected to the inner wall of the mounting box. Two guide posts are provided and slide within the two guide rails. The two guide posts are fixedly connected to the two sides of the monitoring camera.

[0017] In a preferred embodiment of the present invention, the rotating assembly includes a support plate, a telescopic groove, inserts, driven springs, a transmission gear, a driving gear, and a rotating motor. The support plate slides between the inner walls of the washing box. Two telescopic grooves are provided, both located at the side ends of the support plate. Two inserts are provided, rotatably connected to two brush heads, with one end of each insert fixedly connected to the two brush heads. Two driven springs are provided, fixedly connected to the circumferential surfaces of the two inserts. The transmission gear is rotatably connected to the side end of the support plate and meshes with the two driven springs. The rotating motor is fixedly connected to the top of the mounting box, with its output end extending between the inner walls of the washing box. The driving gear is fixedly connected to the output end of the transmission gear, and meshes with the transmission gear.

[0018] As a preferred embodiment of the present invention, each set of elastic components includes a positioning post, a spring block, and a push spring. The positioning post is inserted between the inner walls of the insertion post and is fixedly connected to the inner wall of the washing box. The spring block is fixedly connected to the circumferential surface of the insertion post, and the push spring is sleeved on the circumferential surface of the insertion post. One end of the push spring is fixedly connected to the spring block, and the other end of the push spring is fixedly connected to the washing box.

[0019] In a preferred embodiment of the present invention, the reset assembly includes a settling groove, a lifting block, a spring groove, and a reset spring. The settling groove is located at the bottom of the monitoring camera and corresponds to the lifting block. The lifting block is fixedly connected to the inner wall of the mounting box. The spring groove is located inside the monitoring camera and communicates with the settling groove. The reset spring is fixedly connected to the inner wall of the spring groove and is connected to the lifting block.

[0020] As a preferred embodiment of the present invention, an infrared sensor is fixedly connected to the bottom of the monitoring camera.

[0021] As a preferred embodiment of the present invention, a mounting bracket is fixedly mounted on the side end of the mounting box.

[0022] A method for using a building facial recognition surveillance device includes the following steps:

[0023] S1, Trigger Recognition:

[0024] When the infrared sensor head detects an infrared source approaching, it measures the size and temperature of the infrared source and transmits the collected data to the mounting frame. The mounting frame then compares the collected data with a comparison database stored within it. If the infrared source size and temperature match those of a human body, the recognition program within the mounting frame is triggered, thus enabling recognition.

[0025] S2, Facial Recognition:

[0026] When the recognition program inside the mounting bracket runs, the output end of the drive motor drives the lead screw to rotate. The lead screw rotates and pushes the slider to move. The slider moves in the sliding groove, causing the top of the slider to push the monitoring camera to flip. The monitoring camera flips downward, counteracting the lifting effect of the reset spring on the monitoring camera, so that the infrared sensor head can take a picture of the infrared source. The mounting bracket calculates the size of the infrared source captured by the infrared sensor head and performs a coarse adjustment flip of the monitoring camera so that the infrared sensor head is aligned with the face of the infrared source. The infrared sensor head takes a picture of the face of the infrared source through two lenses and compares the picture with the facial recognition database inside the mounting bracket to complete the facial recognition.

[0027] S3. Wipe away water mist:

[0028] During the humid season, when water vapor condenses on the two lenses, causing mist, the mounting bracket detects that the lenses are being interfered with by the mist and activates the drive motor. The output of the drive motor rotates the lead screw, which in turn pushes the slider back to its original position, releasing the slider from squeezing the surveillance camera and causing it to flip over. Under the push of the return spring, the surveillance camera returns to its original position inside the mounting box. Simultaneously, during the reset process, the slider moves the squeezing block, which pushes the push ring. The push ring then moves the insert pins, causing the two brush heads to move and preventing them from becoming misaligned and stuck with the surveillance camera. When the surveillance camera is inside the mounting box and the two lenses are aligned with the two brush heads, the two push springs push the two insert pins closer to the two lenses. The mounting bracket then activates the rotating motor, whose output rotates the drive gear. The drive gear meshes with the transmission gear, which in turn meshes with the two driven springs, causing the two insert pins to rotate. This, in turn, causes the two brush heads to rotate, brushing away the mist from the two lenses.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. In this solution, during the humid season, when water vapor condenses at the two lenses, and the monitoring camera is inside the mounting box with the two lenses and brush heads aligned, the two push springs push the two pins closer to the two lenses. The mounting bracket then activates a rotating motor, whose output drives the drive gear to rotate. The drive gear, through meshing with the transmission gear, drives the transmission gear to rotate. The transmission gear, through meshing with the two driven springs, drives the two pins to rotate, which in turn causes the two brush heads to rotate. The two brush heads then brush away the water vapor from the lenses, thus removing the water vapor. This ensures that when the monitoring device is installed at the entrance of an underground parking lot, the camera lenses will not be blocked by water vapor condensation, preventing a decrease in camera clarity. This allows the monitoring equipment to adapt to the humid weather of the "return to spring" season and improves camera clarity.

[0031] 2. In this solution, when the lead screw pushes the slider to reset by rotation, it releases the slider from squeezing and flipping the monitoring camera. Under the push of the reset spring, the monitoring camera is reset in the mounting box. At the same time, the slider drives the squeezing block to move during the reset process, so that the squeezing block pushes the push ring, and the push ring drives the insertion post to move, so that the two brush heads move, avoiding the two brush heads from being misaligned and stuck with the monitoring camera.

[0032] 3. In this solution, the positioning post and the insertion post slide together to position the insertion post. The spring block is fixedly connected to the circumferential surface of the insertion post. The spring block supports and fixes the push spring, and the push spring pushes the spring block. Then the spring block pushes the insertion post, and the insertion post drives the brush head to squeeze, so that the brush head fits against the lens, improving the water mist wiping effect. Attached Figure Description

[0033] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0034] Figure 1 This is a first-view perspective stereoscopic view of a building-based facial recognition monitoring device according to the present invention.

[0035] Figure 2 This is a second-view perspective stereoscopic view of a building-based facial recognition monitoring device according to the present invention.

[0036] Figure 3 This is a partial cross-sectional view of a building-based facial recognition monitoring device according to the present invention;

[0037] Figure 4 This is a first half-sectional view of a building-based facial recognition monitoring device according to the present invention;

[0038] Figure 5 This is a second half-sectional view of a building-based facial recognition monitoring device according to the present invention;

[0039] Figure 6 This is a third half-sectional view of a building-based facial recognition monitoring device according to the present invention;

[0040] Figure 7 This is a fourth half-sectional view of a building-based facial recognition monitoring device according to the present invention;

[0041] Figure 8 This is an exploded view of a building-based facial recognition monitoring device according to the present invention.

[0042] Figure 9 This is an exploded view of the linkage mechanism of a building facial recognition monitoring device according to the present invention;

[0043] Figure 10 This is an exploded view of the rotating component and the elastic component of a building image recognition monitoring device according to the present invention.

[0044] In the diagram: 1. Mounting box; 2. Washing box; 3. Control terminal; 4. Mounting bracket; 5. Monitoring camera; 6. Lens; 7. Infrared sensor head; 8. Settling tank; 9. Lifting block; 10. Spring groove; 11. Return spring; 12. Sliding groove; 13. U-shaped slide rail; 14. Limiting groove; 15. Drive motor; 16. Lead screw; 17. Slider; 18. Limiting block; 19. Extrusion block; 20. Support plate; 21. Insert post; 22. Positioning post; 23. Brush head; 24. Push spring; 25. Driven spring; 26. Transmission gear; 27. Drive gear; 28. Rotating motor; 29. ​​Push ring; 31. Spring block; 32. Telescopic groove; 33. Guide post; 34. Guide rail; 35. Washing ring; 36. Limiting plate. Detailed Implementation

[0045] 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.

[0046] Example

[0047] Reference Figure 1 - Figure 10 A building-based facial recognition surveillance device, comprising:

[0048] Installation box 1;

[0049] The surveillance camera 5 is rotatably connected to the inner wall of the mounting box 1 via a movable hinge. Two lenses 6 are fixedly installed on the side of the surveillance camera 5.

[0050] Washing box 2 is fixedly connected to the side of mounting box 1, and the washing box 2 is connected to the mounting box 1.

[0051] A scrubbing ring 35 is fixedly connected to the side of the mounting box 1, corresponding to the scrubbing box 2. Two brush heads 23 are disposed between the inner walls of the scrubbing ring 35; and

[0052] The linkage mechanism is located between the inner walls of the mounting box 1. The linkage mechanism is connected to the monitoring camera 5 and the two brush heads 23 to move and wipe the two lenses 6.

[0053] In this invention, a control terminal 3 is fixedly connected to the top of the mounting box 1. The control terminal 3 is used to support and fix the mounting box 1. The mounting box 1 is used to house the monitoring camera 5, two brush heads 23 and a linkage mechanism. The mounting box 1 is used to support and fix the mounting bracket 4. The two lenses 6 are used to prevent moisture from entering the monitoring camera 5. The washing box 2 is used to house the elastic component and the transmission component. The washing ring 35 is used to house the two brush heads 23. The two brush heads 23 are used to wipe away the mist from the two lenses 6. The linkage mechanism is connected to the monitoring camera 5 and the two brush heads 23 to move and wipe the two lenses 6.

[0054] The linkage mechanism includes a pushing component, a guiding component, a rotating component, an elastic component, and a reset component. The pushing component is located on the top of the mounting box 1 and is connected to the monitoring camera 5 and the support plate 20. The guiding component is located on the inner wall of the mounting box 1 and is connected to the monitoring camera 5. The rotating component is located between the inner walls of the washing box 2 and is connected to the two brush heads 23. There are two sets of elastic components, which are located between the inner walls of the washing box 2 and are both connected to the rotating component. The reset component is located between the inner walls of the mounting box 1 and is connected to the monitoring camera 5.

[0055] In this invention, a pushing component is used to push the monitoring camera 5 to rotate, a guiding component is used to limit the maximum rotation angle of the monitoring camera 5, a rotating component is used to provide power for the rotation of the two brush heads 23, and two elastic components are used to squeeze the two brush heads 23.

[0056] The pushing assembly includes a sliding groove 12, a U-shaped slide rail 13, a limiting groove 14, a pushing motor 15, a lead screw 16, a slider 17, a limiting block 18, a pressing block 19, a limiting plate 36, and a push ring 29. The sliding groove 12 is formed on the top of the mounting box 1 and is connected to the inner wall of the mounting box 1. The U-shaped slide rail 13 is fixedly connected to the top of the mounting box 1 and corresponds vertically to the sliding groove 12. The pushing motor 15 is fixedly connected to the top of the mounting box 1. The lead screw 16 is fixedly connected to the output end of the pushing motor 15 and extends to the inner wall of the U-shaped slide rail 13. The extended end of the lead screw 16 is rotatably connected to the inner wall of the U-shaped slide rail 13. The upper part of the slide is a slider 17 fitted on the circumferential surface of the lead screw 16. The bottom of the slider 17 is in contact with the monitoring camera 5. There are two limiting grooves 14, which are opened on the inner wall of the U-shaped slide rail 13. There are two limiting blocks 18, which slide in the two limiting grooves 14. Both limiting blocks 18 are connected to the slider 17. The push ring 29 is fixedly connected to the side end of the support plate 20. The extrusion block 19 is fixedly connected to the side end of the slider 17. The slider 17 corresponds to the push ring 29. There are two limiting plates 36, which are fixedly connected to the inner wall of the mounting box 1. The two limiting plates 36 are located on both sides of the extrusion block 19.

[0057] In this invention, the sliding groove 12 is provided to accommodate the sliding of the slider 17, the U-shaped slide rail 13 is provided to accommodate the sliding of the slider 17, the drive motor 15 is provided to provide rotational power for the lead screw 16, and in turn provides power for the flipping of the monitoring camera 5. The lead screw 16 pushes the slider 17 to move by sliding with the slider 17, and the slider 17 is used to compress the flipping of the monitoring camera 5. The two limiting grooves 14 are provided to accommodate the sliding of the two limiting blocks 18. The two limiting blocks 18 slide in the two limiting grooves 14. The sliding engagement of the two limiting blocks 18 guides the movement of the slider 17. The push ring 29 engages with the squeezing block 19, which pushes the push ring 29, thereby causing the support plate 20 to translate, moving the two brush heads 23 away from the two lenses 6. The two limiting plates 36 guide and restrict the movement of the squeezing block 19 to prevent it from shifting. When facial recognition is required, the mounting bracket 4 activates the push motor 15, whose output drives the lead screw 16 to rotate. 6. The slider 17 is moved by rotation. The slider 17 moves within the sliding groove 12, causing the top of the slider 17 to push the monitoring camera 5 to flip downwards. This flips the monitoring camera 5 downwards, counteracting the lifting effect of the reset spring 11 on the monitoring camera 5, allowing the infrared sensor head 7 to capture an image of the infrared source. The mounting bracket 4 calculates the size of the infrared source captured by the infrared sensor head 7 and performs a coarse adjustment to flip the monitoring camera 5 so that the infrared sensor head 7 is aligned with the face of the infrared source. The two lenses 6 capture an image of the face of the infrared source and compare the image with the facial recognition database in the mounting bracket 4 to complete facial recognition. When the lead screw 16 pushes the slider 17 to reset by rotation, the slider 17 releases the squeezing and flipping of the monitoring camera 5. Under the push of the reset spring 11, the monitoring camera 5 returns to its original position in the mounting box 1. At the same time, during the reset process, the slider 17 drives the squeezing block 19 to move, causing the squeezing block 19 to push the push ring 29. The push ring 29 drives the insertion post 21 to move, causing the two brush heads 23 to move, preventing the two brush heads 23 from being misaligned and stuck with the monitoring camera 5.

[0058] The guiding assembly includes guide posts 33 and guide rails 34. There are two guide rails 34, which are fixedly connected to the inner wall of the mounting box 1. There are two guide posts 33, which slide within the two guide rails 34 and are fixedly connected to the two sides of the monitoring camera 5.

[0059] In this invention, two guide rails 34 are used to accommodate the sliding of two guide posts 33. The two guide posts 33 slide within the two guide rails 34. Through the sliding cooperation between the two guide rails 34 and the two guide posts 33, the flipping of the surveillance camera 5 is guided, thereby guiding the surveillance camera 5 and preventing it from falling off or shifting when flipping, thus reducing the error in facial recognition.

[0060] The rotating assembly includes a support plate 20, telescopic grooves 32, inserts 21, driven springs 25, transmission gears 26, driving gears 27, and a rotating motor 28. The support plate 20 slides between the inner walls of the washing box 2. Two telescopic grooves 32 are provided, and the two telescopic grooves 32 are opened at the side ends of the support plate 20. Two inserts 21 are provided, and the two inserts 21 are rotatably connected to the two brush heads 23. One end of the two inserts 21 is fixedly connected to the two brush heads 23. Two driven springs 25 are provided, and the two driven springs 25 are fixedly connected to the circumferential surface of the two inserts 21. The transmission gear 26 is rotatably connected to the side end of the support plate 20 and meshes with the two driven springs 25. The rotating motor 28 is fixedly connected to the top of the mounting box 1, and the output end of the rotating motor 28 extends between the inner walls of the washing box 2. The driving gear 27 is fixedly connected to the output end of the transmission gear 26 and meshes with the transmission gear 26.

[0061] In this invention, the support plate 20 supports two inserts 21, two telescopic grooves 32 accommodate the rotation of the two inserts 21, the two inserts 21 support and fix two brush heads 23, two driven springs 25 drive the two inserts 21 to rotate, the transmission gear 26 drives the two driven springs 25 to rotate through meshing with them, the rotating motor 28 provides power for the rotation of the driving gear 27, and the driving gear 27 drives the transmission gear 26 to rotate through meshing with it. During the humid season, when water vapor condenses at the two lenses 6 to produce water mist, when the monitoring camera 5 is inside the mounting box 1 and the two lenses 6 correspond to the two brush heads 23, the two inserts 21 are pushed by the two push springs 24. The column 21 pushes the two brush heads 23 closer to the two lenses 6. The mounting bracket 4 starts the rotating motor 28. The output end of the rotating motor 28 drives the drive gear 27 to rotate. The drive gear 27 drives the transmission gear 26 to rotate through meshing with the transmission gear 26. The transmission gear 26 drives the two inserts 21 to rotate through meshing with the two driven springs 25. This causes the two brush heads 23 to rotate. The two brush heads 23 remove water mist from the two lenses 6 through rotation, thus wiping away the water mist. This prevents the camera lens from being blocked by water mist when the monitoring device is installed at the entrance of the underground parking lot, avoiding a decrease in camera clarity. It also allows the monitoring equipment to adapt to the humid weather of "return to spring" and improves the camera clarity.

[0062] Each set of elastic components includes a positioning post 22, a spring block 31, and a push spring 24. The positioning post 22 is inserted between the inner walls of the insertion post 21 and is fixedly connected to the inner wall of the washing box 2. The spring block 31 is fixedly connected to the circumferential surface of the insertion post 21. The push spring 24 is sleeved on the circumferential surface of the insertion post 21. One end of the push spring 24 is fixedly connected to the spring block 31, and the other end of the push spring 24 is fixedly connected to the washing box 2.

[0063] In this invention, the positioning post 22 and the insertion post 21 are slidably engaged to position the insertion post 21. The spring block 31 is fixedly connected to the circumferential surface of the insertion post 21. The spring block 31 is used to support and fix the push spring 24. The push spring 24 is used to push the spring block 31, and then the spring block 31 pushes the insertion post 21. The insertion post 21 drives the squeezing brush head 23, so that the brush head 23 fits against the lens 6, improving the water mist wiping effect.

[0064] The reset assembly includes a settling groove 8, a lifting block 9, a spring groove 10, and a reset spring 11. The settling groove 8 is located at the bottom of the monitoring camera 5 and corresponds to the lifting block 9. The lifting block 9 is fixedly connected to the inner wall of the mounting box 1. The spring groove 10 is located inside the monitoring camera 5 and is connected to the settling groove 8. The reset spring 11 is fixedly connected to the inner wall of the spring groove 10 and is connected to the lifting block 9.

[0065] In this invention, the settling groove 8 is provided to accommodate the lifting block 9, the lifting block 9 is provided to support and fix the return spring 11, the spring groove 10 is provided to accommodate and fix the return spring 11, the return spring 11 is provided to lift the monitoring camera 5, when the slider 17 releases the squeezing and deflection of the monitoring camera 5, the monitoring camera 5 flips and returns to its original position between the mounting boxes 1 under the push of the return spring 11.

[0066] An infrared sensor 7 is fixedly connected to the bottom of the surveillance camera 5.

[0067] In this invention, the infrared sensor 7 is used to measure the size and temperature of the infrared source, and to collect data on the size and temperature of the infrared source to provide data support for triggering facial recognition.

[0068] Mounting bracket 4 is fixedly installed on the side of mounting box 1.

[0069] In this invention, the mounting frame 4 is used to connect to the Internet to facilitate data transmission. At the same time, the mounting frame 4 stores the running program and the identification program to improve the intelligence of the monitoring device.

[0070] A method for using a building facial recognition surveillance device includes the following steps:

[0071] S1, Trigger Recognition:

[0072] When the infrared sensor 7 detects an infrared source approaching, it measures the size and temperature of the infrared source and transmits the collected data to the mounting frame 4. The mounting frame 4 compares the collected data with the comparison database stored therein. If the infrared source size and temperature match the human body, the recognition program in the mounting frame 4 is triggered, thus achieving recognition.

[0073] S2, Facial Recognition:

[0074] When the recognition program inside the mounting bracket 4 runs, the output end of the drive motor 15 drives the lead screw 16 to rotate. The lead screw 16 rotates and pushes the slider 17 to move. The slider 17 moves in the sliding groove 12, causing the top of the slider 17 to push the monitoring camera 5 to flip. The monitoring camera 5 flips downward, offsetting the lifting of the monitoring camera 5 by the reset spring 11, so that the infrared sensor head 7 can take pictures of the infrared source. The mounting bracket 4 calculates the size of the infrared source collected by the infrared sensor head 7 and performs coarse adjustment flipping of the monitoring camera 5 so that the infrared sensor head 7 is aligned with the face of the infrared source. The two lenses 6 take pictures of the face of the infrared source and compare the pictures with the facial recognition database inside the mounting bracket 4 to complete facial recognition.

[0075] S3. Wipe away water mist:

[0076] During the humid season, when water vapor condenses on both lenses 6, causing mist, the mounting bracket 4 detects that the lenses 6 are being interfered with by the mist and activates the drive motor 15. The output of the drive motor 15 drives the lead screw 16 to rotate, which in turn pushes the slider 17 to reset, releasing the slider 17 from squeezing and flipping the monitoring camera 5. Under the push of the reset spring 11, the monitoring camera 5 returns to its original position inside the mounting box 1. Simultaneously, during the reset process, the slider 17 moves the squeezing block 19, causing the squeezing block 19 to push the push ring 29. The push ring 29 then moves the insertion post 21, causing the two brush heads 23 to move, preventing the two brush heads 23 from becoming misaligned and stuck with the monitoring camera 5. When the surveillance camera 5 is inside the mounting box 1, and the two lenses 6 correspond to the two brush heads 23, under the push of the two push springs 24, the two inserts 21 push the two brush heads 23 closer to the two lenses 6. The mounting bracket 4 starts the rotating motor 28. The output end of the rotating motor 28 drives the drive gear 27 to rotate. The drive gear 27 drives the transmission gear 26 to rotate through meshing with the transmission gear 26. The transmission gear 26 drives the two inserts 21 to rotate through meshing with the two driven springs 25, thereby causing the two brush heads 23 to rotate. The two brush heads 23 brush away the water mist on the two lenses 6 through rotation, thereby wiping away the water mist.

[0077] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A building-based facial recognition surveillance device, characterized in that, include; Installation box (1); The surveillance camera (5) is rotatably connected to the inner wall of the mounting box (1) via a movable hinge. Two lenses (6) are fixedly installed on the side of the surveillance camera (5). A washing box (2) is fixedly connected to the side of the mounting box (1), and the washing box (2) is connected to the mounting box (1). A scrubbing ring (35) is fixedly connected to the side of the mounting box (1), and the scrubbing ring (35) corresponds to the scrubbing box (2). Two brush heads (23) are provided between the inner walls of the scrubbing ring (35); and The linkage mechanism is located between the inner walls of the mounting box (1) and is connected to the monitoring camera (5) and two brush heads (23) to move and wipe the two lenses (6). The linkage mechanism includes a pushing component, a guiding component, a rotating component, an elastic component, and a resetting component. The pushing component is located on the top of the mounting box (1) and is connected to the monitoring camera (5) and the support plate (20). The guiding component is located on the inner wall of the mounting box (1) and is connected to the monitoring camera (5). The rotating component is located between the inner walls of the washing box (2) and is connected to the two brush heads (23). There are two sets of elastic components, which are located between the inner walls of the washing box (2) and are connected to the rotating component. The resetting component is located between the inner walls of the mounting box (1) and is connected to the monitoring camera (5). The pushing assembly includes a sliding groove (12), a U-shaped slide rail (13), a limiting groove (14), a pushing motor (15), a lead screw (16), a slider (17), a limiting block (18), a pressing block (19), a limiting plate (36), and a push ring (29). The sliding groove (12) is located on the top of the mounting box (1) and is connected to the inner wall of the mounting box (1). The U-shaped slide rail (13) is fixedly connected to the mounting box (1). At the top, the U-shaped slide rail (13) corresponds vertically to the sliding groove (12). The push motor (15) is fixedly connected to the top of the mounting box (1). The lead screw (16) is fixedly connected to the output end of the push motor (15). The lead screw (16) extends to the inner wall of the U-shaped slide rail (13). The extended end of the lead screw (16) is rotatably connected to the inner wall of the U-shaped slide rail (13). The slider (17) is sleeved on the circumferential surface of the lead screw (16). The bottom of the slider (17) is in contact with the monitoring camera (5). Two limiting grooves (14) are provided, which are opened on the inner wall of the U-shaped slide rail (13). Two limiting blocks (18) are provided, which slide in the two limiting grooves (14). Both limiting blocks (18) are connected to the slider (17). The push ring (29) is fixedly connected to the side end of the support plate (20). The extrusion block (19) is fixedly connected to the side end of the slider (17). The push ring (29) is used to dock with the extrusion block (19) and the extrusion block (19) can push the push ring (29). The slider (17) corresponds to the push ring (29). There are two limiting plates (36). The two limiting plates (36) are fixedly connected to the inner wall of the mounting box (1). The two limiting plates (36) are located on both sides of the extrusion block (19).

2. The building facial recognition monitoring device according to claim 1, characterized in that, The guiding assembly includes guide posts (33) and guide rails (34). There are two guide rails (34), which are fixedly connected to the inner wall of the mounting box (1). There are two guide posts (33), which slide within the two guide rails (34) and are fixedly connected to the two sides of the monitoring camera (5).

3. The building facial recognition monitoring device according to claim 2, characterized in that, The rotating assembly includes a support plate (20), a telescopic groove (32), a pin (21), a driven spring (25), a transmission gear (26), a drive gear (27), and a rotating motor (28). The support plate (20) slides between the inner walls of the washing box (2). Two telescopic grooves (32) are provided, and the two telescopic grooves (32) are opened at the side ends of the support plate (20). Two pins (21) are provided, and the two pins (21) are rotatably connected to the two brush heads (23). One end of the two pins (21) is fixedly connected to the two brush heads (23). Two driven springs (25) are provided. The two driven springs (25) are fixedly connected to the circumferential surfaces of the two inserts (21). The transmission gear (26) is rotatably connected to the side end of the support plate (20). The transmission gear (26) meshes with the two driven springs (25). The rotating motor (28) is fixedly connected to the top of the mounting box (1). The output end of the rotating motor (28) extends to the inner wall of the washing box (2). The driving gear (27) is fixedly connected to the output end of the transmission gear (26). The driving gear (27) meshes with the transmission gear (26).

4. The building facial recognition monitoring device according to claim 3, characterized in that, Each set of elastic components includes a positioning post (22), a spring block (31), and a push spring (24). The positioning post (22) is inserted between the inner walls of the insertion post (21) and is fixedly connected to the inner wall of the washing box (2). The spring block (31) is fixedly connected to the circumferential surface of the insertion post (21). The push spring (24) is sleeved on the circumferential surface of the insertion post (21). One end of the push spring (24) is fixedly connected to the spring block (31), and the other end of the push spring (24) is fixedly connected to the washing box (2).

5. A building facial recognition monitoring device according to claim 4, characterized in that, The reset assembly includes a settling groove (8), a lifting block (9), a spring groove (10), and a reset spring (11). The settling groove (8) is located at the bottom of the monitoring camera (5). The settling groove (8) corresponds to the lifting block (9). The lifting block (9) is fixedly connected to the inner wall of the mounting box (1). The spring groove (10) is located inside the monitoring camera (5). The spring groove (10) is connected to the settling groove (8). The reset spring (11) is fixedly connected to the inner wall of the spring groove (10). The reset spring (11) is connected to the lifting block (9).

6. A building facial recognition monitoring device according to claim 5, characterized in that, An infrared sensor (7) is fixedly connected to the bottom of the surveillance camera (5).

7. A building facial recognition monitoring device according to claim 6, characterized in that, The mounting box (1) is fixedly mounted with a mounting bracket (4) on its side.

8. A method of using a building facial recognition monitoring device, characterized in that, The application of a building facial recognition monitoring device according to any one of claims 1-7 includes the following steps: S1, Trigger Recognition: When the infrared sensor (7) senses an infrared source approaching, it measures the size and temperature of the infrared source and transmits the collected data to the mounting frame (4). The data is then compared with the data stored in the comparison database within the mounting frame (4). If the infrared source size and temperature match the human body, the recognition program within the mounting frame (4) is triggered to achieve recognition. S2, Facial Recognition: When the recognition program in the mounting bracket (4) is triggered, the output end of the drive motor (15) drives the lead screw (16) to rotate. The lead screw (16) rotates and pushes the slider (17) to move. The slider (17) moves in the sliding groove (12), causing the top of the slider (17) to push the monitoring camera (5) to flip. The monitoring camera (5) flips downward, offsetting the lifting of the monitoring camera (5) by the reset spring (11), so that the infrared sensor (7) takes a picture of the infrared source. The mounting bracket (4) calculates the size of the infrared source collected by the infrared sensor (7) and performs a coarse adjustment flip of the monitoring camera (5) so that the infrared sensor (7) is aligned with the face of the infrared source. The infrared source face is photographed through the two lenses (6), and the photo is compared with the face recognition database in the mounting bracket (4) to complete the face recognition. S3. Wipe away water mist: During the humid season, when water vapor condenses on both lenses (6), the mounting bracket (4) detects that the lenses (6) are being interfered with by the water vapor and starts the drive motor (15). The output end of the drive motor (15) drives the lead screw (16) to rotate. The lead screw (16) rotates and pushes the slider (17) to reset, releasing the slider (17) from squeezing and flipping the monitoring camera (5). Under the push of the reset spring (11), the monitoring camera (5) returns to its original position in the mounting box (1). At the same time, the slider (17) moves the squeezing block (19) during the reset process, causing the squeezing block (19) to push the push ring (29). The push ring (29) moves the insertion post (21), causing the two brush heads (23) to move, preventing the two brush heads (23) from being misaligned with the monitoring camera (5). When the surveillance camera (5) is inside the mounting box (1), and the two lenses (6) correspond to the two brush heads (23), under the push of the two push springs (24), the two pins (21) push the two brush heads (23) closer to the two lenses (6), the mounting bracket (4) starts the rotating motor (28), the output end of the rotating motor (28) drives the drive gear (27) to rotate, the drive gear (27) drives the transmission gear (26) to rotate through meshing with the transmission gear (26), the transmission gear (26) drives the two pins (21) to rotate through meshing with the two driven springs (25), and then causes the two brush heads (23) to rotate, and the two brush heads (23) brush away the water mist on the two lenses (6) through rotation, thereby achieving the removal of water mist.

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