Video monitoring equipment and use method

Abstract

A frequency monitoring device disclosed by the present invention comprises a monitoring unit and a central control assembly, the monitoring unit is connected with the central control assembly, the monitoring unit comprises a housing, a camera assembly is arranged in the housing, one end of the camera assembly is provided with a lens, the lens is fixedly connected with the housing, and the camera assembly is connected with the central control assembly. An opening and closing mechanism is arranged at the end, close to the lens, of the shell and used for opening or closing the lens. The opening and closing mechanism is connected with a driving mechanism, the driving mechanism is connected with a PLC, and the PLC is connected with the shell. The opening and closing mechanism communicates with the cleaning mechanism, and the cleaning mechanism is connected with the shell. The shell is provided with a moving sensor, the moving sensor is connected with the PLC, the moving sensor is provided with a shielding mechanism, and the shielding mechanism is connected with the driving mechanism; with the adoption of the structure, the exposure time of the lens to the outside is shortened, the cleanliness of a picture captured by the camera assembly is ensured, the monitored picture is clear, and the camera assembly is suitable for video monitoring.

Description

Technical Field

[0001] The present invention belongs to the technical field of monitoring equipment, and in particular relates to a video monitoring equipment and a use method thereof. Background Art

[0002] Monitoring is the physical basis for real-time monitoring of key parts or important places in various industries. The management department can obtain effective data, images or sound information through it, and timely monitor and remember the process of sudden abnormal events, so as to provide efficient and timely command and height, deploy police force, handle cases, etc.

[0003] The video surveillance system consists of a monitoring front end, a management center, a monitoring center, a PC client, and a wireless bridge; Monitoring front end: uses a camera to collect monitoring information of the monitored point and can be equipped with an alarm device; Management center: undertakes the management, control, alarm processing, recording, video playback, user management, and other tasks of all front-end equipment; Monitoring center: is used to centrally monitor the area under its jurisdiction, including a TV wall and a monitoring client terminal group; PC client: outside the monitoring center, a PC can also be connected to the network for remote monitoring; Wireless bridge: The wireless bridge is used to access the wireless data network cable and access the Internet.

[0004] Since the lens of the camera is exposed for a long time, external dust easily adheres to the surface of the lens, making the image captured by the camera blurred and causing the monitoring image to be unclear; the inventor found through analysis that the signal images collected by the camera are mostly the same images, especially in the dead of night and after factory workers get off work. Based on this situation, the inventor developed a video surveillance device. Summary of the invention

[0005] The purpose of the present invention is to provide a video surveillance device, aiming to solve the problem pointed out in the background technology that since the lens of the camera is in an exposed state for a long time, external dust is easy to adhere to the surface of the lens, thereby making the picture captured by the camera blurred and causing the monitoring picture to be unclear.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A video monitoring device, comprising a monitoring unit and a central control component, wherein the monitoring unit is connected to the central control component, the monitoring unit comprises a housing, a camera component is arranged in the housing, a lens is arranged at one end of the camera component, the lens is fixedly connected to the housing, an opening and closing mechanism is arranged near the end of the lens, and the opening and closing mechanism is used to open or close the lens;

[0008] The opening and closing mechanism is connected to the driving mechanism, the driving mechanism is connected to the PLC controller, and the PLC controller is connected to the housing;

[0009] The opening and closing mechanism is connected to the cleaning mechanism, and the cleaning mechanism is connected to the housing;

[0010] The housing is provided with a motion sensor, the motion sensor is connected to the PLC controller, the motion sensor is provided with a shielding mechanism, and the shielding mechanism is connected to the driving mechanism.

[0011] Furthermore, the opening and closing mechanism includes a fixed frame connected to the outer shell, the fixed frame is provided with a cover 1 and a cover 2, the cover 1 and the cover 2 are respectively located on both sides of the fixed frame, the fixed frame is provided with a slide cover 1 and a slide cover 2, the slide cover 1 and the slide cover 2 are respectively slidably connected to the fixed frame, and the slide cover 1 and the slide cover 2 are respectively connected to the driving mechanism.

[0012] Furthermore, the first slide cover is provided with a water absorbing body 1 near the end of the lens, and the second slide cover is provided with a water absorbing body 2 near the end of the lens.

[0013] Furthermore, the driving mechanism includes a servo motor, the servo motor is connected to the PLC controller, the output shaft of the servo motor is connected to a driving gear, the two sides of the driving gear are respectively connected to transmission group 1 and transmission group 2, the transmission group 1 is connected to slide cover 1, and the transmission group 2 is connected to slide cover 2.

[0014] Further, the transmission group 1 includes an eccentric gear 1, which is meshed and connected to the driving gear. The eccentric gear is rotatably connected to one end of a connecting rod 1, the other end of the connecting rod 1 is rotatably connected to one end of a changing rod 1, the other end of the changing rod 1 is rotatably connected to one end of a guide rod 1, the main body of the changing rod 1 is rotatably connected to the outer shell, and the other end of the guide rod is connected to the sliding cover 1.

[0015] Further, the transmission group 2 includes an eccentric gear 2, which is meshed and connected to the driving gear. The eccentric gear 2 is rotationally connected to one end of a connecting rod 2, and the other end of the connecting rod 2 is rotationally connected to a changing rod 2. The other end of the changing rod 2 is rotationally connected to one end of a guide rod 2. The main body of the changing rod 2 is rotationally connected to the outer shell, and the other end of the guide rod 2 is connected to the sliding rod 2.

[0016] Furthermore, the cleaning mechanism includes a water storage bucket, which is connected to the outer shell, and the opening and closing mechanism is provided with a water inlet hole. The water storage bucket and the water inlet hole are connected by a pipe, and the water inlet hole is provided with a valve away from the pipe end. The opening and closing mechanism is provided with a sponge near the valve end, and the sponge is provided with a accommodating hole, which is adapted to the valve.

[0017] Furthermore, the valve includes a compression spring, a sliding rod, a sliding hole and a sealing plate. The opening and closing mechanism is provided with a plurality of sliding holes, each of the sliding holes is arranged at intervals along the circumference of the water inlet hole, and each of the sliding holes is provided with a corresponding compression spring. One end of the compression spring is connected to the opening and closing mechanism, and the other end of the compression spring is connected to the corresponding sliding rod. Each of the sliding rods is connected to the sealing plate at the end away from the compression spring.

[0018] Furthermore, the shielding mechanism includes an elastic member, one end of which is rotatably connected to the driving mechanism, the other end of which is rotatably connected to one end of a shielding sheet, the other end of which is rotatably connected to the housing, the driving mechanism drives the shielding sheet to approach or move away from the moving sensor, and a limiting rod is provided at the end of the moving sensor that is away from the closing mechanism.

[0019] A method for using a video surveillance device, comprising the video surveillance device according to any one of claims 1 to 9, comprising the following steps:

[0020] Step 1: Fix the video surveillance equipment in the area that needs to be monitored;

[0021] Step 2: Set the opening position of the opening and closing mechanism as the starting state, and set the angle of each rotation of the driving mechanism through the PLC controller. The driving mechanism rotates once and the position of the opening and closing mechanism is in the closed state. The driving mechanism rotates again and the opening and closing mechanism is in the open position.

[0022] Step 3: Set the opening time and closing time of the opening and closing mechanism through the PLC controller;

[0023] Step 4: The motion sensor transmits the sensed motion signal to the PLC controller. The PLC controller causes the driving mechanism to temporarily rotate once to open the opening and closing mechanism. The camera component collects signals from the monitored area. The PLC controller sets the delay time for the temporary rotation of the driving mechanism. The driving mechanism rotates again to close the opening and closing mechanism.

[0024] Due to the adoption of the above structure, the present invention has the following technical advances compared with the prior art:

[0025] (1) The housing of the present invention is provided with an opening and closing mechanism near the lens end, and the opening and closing mechanism is used to open or close the lens. When the opening and closing mechanism is opened, the camera assembly is used to collect signals in the monitoring area. When the opening and closing mechanism is closed, the lens is in a closed space between the opening and closing mechanism and the housing, which reduces the time the lens is exposed to the outside world, reduces the probability of external dust adhering to the lens surface, prolongs the cleaning time of the lens, ensures the cleanliness of the image captured by the camera assembly, and makes the monitoring image clear; the opening and closing mechanism is connected to the driving mechanism, the driving mechanism is connected to the PLC controller, and the PLC controller is connected to the housing. This arrangement enables the opening or closing of the opening and closing mechanism to be mechanically controlled and automated;

[0026] (2) The opening and closing mechanism of the present invention is connected to the cleaning mechanism, and the cleaning mechanism is connected to the housing. When the opening and closing mechanism is in a closed state, the cleaning mechanism cleans the lens, thereby ensuring the cleanliness of the image captured by the camera and making the monitoring image clear;

[0027] (3) The housing is provided with a motion sensor, which is connected to the PLC controller. The motion sensor is provided with a shielding mechanism, which is connected to the driving mechanism. When the opening and closing mechanism is in an open state and the camera assembly is in the process of collecting signals, the shielding mechanism shields the motion sensor to prevent the motion sensor from sensing a moving object. When the opening and closing mechanism is in a closed state, the shielding mechanism is away from the motion sensor. The motion sensor is used to sense a moving object in a monitoring area. When the motion sensor senses a moving object, it transmits a signal to the PLC controller. After receiving the signal, the PLC controller rotates the driving mechanism once to open the opening and closing mechanism, and the camera assembly collects the moving signal in the monitoring area. When the driving mechanism reaches the delay time, the driving mechanism rotates once again to close the opening and closing mechanism, thereby ensuring that the video surveillance device collects temporary signals.

[0028] In summary, the present invention adopts the above structure, which reduces the time the lens is exposed to the outside world, ensures the cleanliness of the image captured by the camera assembly, makes the monitoring image clear, and is suitable for video monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0030] In the attached picture:

[0031] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the housing, servo motor, driving gear, opening and closing mechanism and transmission group 2 of an embodiment of the present invention;

[0033] Figure 3It is a schematic structural diagram of a housing, a camera assembly, a lens, a first slide cover, a second slide cover, a first transmission group, and a second transmission group according to an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of a fixed frame, a cover 1, a sliding cover 1, a water absorbing body 1 and a sponge according to an embodiment of the present invention;

[0035] Figure 5 It is a schematic diagram of the structure of a fixing frame, a water inlet hole, a valve, a sponge, a sealing cover 1 and a sliding cover 1 according to an embodiment of the present invention;

[0036] Figure 6 It is a schematic structural diagram of a fixed frame, a cover 1, a slide cover 1, a driving mechanism and a cleaning mechanism according to an embodiment of the present invention;

[0037] Figure 7 It is a schematic structural diagram of a housing, a driving gear, a transmission group 1, a transmission group 2, a shielding mechanism and a mobile sensor according to an embodiment of the present invention;

[0038] Figure 8 It is a schematic diagram of the structure of the opening and closing mechanism and the water storage bucket according to an embodiment of the present invention;

[0039] Fig. 9 This is a schematic diagram of the structure of the fixing frame, valve, sealing cover 1, sliding cover 1 and water absorbing body 1 implemented in the present invention;

[0040] Fig.10 It is a schematic structural diagram of a fixing frame and a valve according to an embodiment of the present invention.

[0041] Labeled parts: 1-housing, 2-camera assembly, 3-lens, 4-opening and closing mechanism, 401-fixed frame, 402-cover 1, 403-cover 2, 404-sliding cover 1, 405-sliding cover 2, 406-water absorbing body 1, 407-water absorbing body 2, 5-driving mechanism, 501-servo motor, 502-driving gear, 503-transmission group 1, 50301-eccentric gear 1, 50302-connecting rod 1, 50303-direction changing rod 1, 50304-guide rod 1, 50305-guide rod 1, 50306-water absorbing body 1, 50307-water absorbing body 2, 50308-drive mechanism, 50309-servo motor, 504-drive gear, 505-drive group 1, 505-drive group 1, 505-drive group 1 04-transmission group 2, 50401-eccentric gear 2, 50402-connecting rod 2, 50403-direction changing rod 2, 50404-guide rod 2, 6-cleaning mechanism, 601-water storage barrel, 602-water inlet hole, 603-valve, 60301-compression spring, 60302-sliding rod, 60303-sliding hole, 60304-sealing plate, 604-sponge, 7-movement sensor, 8-shielding mechanism, 801-elastic part, 802-shielding sheet, 803-limiting rod. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0043] Embodiment A video monitoring device and use method

[0044] This embodiment discloses a video monitoring device, such as Figure 1 , Figure 2 , Figure 3As shown, it includes a monitoring unit and a central control component. The monitoring unit is connected to the central control component through signals. The monitoring unit includes a shell 1. A protective cover is also provided on the outer side of the shell 1. A camera component 2 is connected to the shell 1 through bolts. The camera component 2 is located in the shell 1. The lens end of the camera component 2 abuts against a lens 3. The lens 3 is fixedly connected to the shell 1 by bonding. The shell 1 is provided with an opening and closing mechanism 4. The opening and closing mechanism 4 is located on the outer side of the lens 3. The opening and closing mechanism 4 is used to open or close the lens 3. When the opening and closing mechanism 4 is in an open state, the camera component 2 is in a monitoring state, which is convenient for collecting signals in the monitoring area and transmitting them to the central control component. When the opening and closing mechanism 4 is in a closed state, the camera component 2 is in a stopped state and does not collect signals. The lens 3 is in the opening and closing mechanism 4. The closed space formed by the housing 1 reduces the time that the lens 3 is exposed to the outside world, reduces the probability of external dust adhering to the surface of the lens 3, prolongs the cleaning time of the lens 3, ensures the cleanliness of the image captured by the camera assembly 2, makes the monitoring image clear, and solves the problem pointed out in the background technology that the lens 3 of the camera is in an exposed state for a long time, and external dust is easy to adhere to the surface of the lens 3, thereby making the image captured by the camera blurred, resulting in unclear monitoring images; the opening and closing mechanism 4 is connected to the driving mechanism 5, the driving mechanism 5 is connected to the PLC controller through a line, the PLC controller is connected to the housing 1 through bolts, and the driving mechanism 5 rotates to drive the opening and closing mechanism 4 to open or close; the opening and closing mechanism 4 is connected to the cleaning Mechanism 6, the cleaning mechanism 6 is connected to the shell 1 through a bracket, and a cleaning liquid is arranged in the cleaning mechanism 6. The cleaning liquid can be liquids such as clean water and alcohol. When the opening and closing mechanism 4 is in a closed state, the cleaning liquid is filled in the closed space formed by the opening and closing mechanism 4 and the shell 1. The cleaning liquid infiltrates the dust adhering to the surface of the lens 3, reduces the adhesion between the dust and the surface of the lens 3, and makes the opening and closing mechanism 4 open. With the outflow of the cleaning liquid, part of the dust is taken away, thereby ensuring the cleanliness of the lens 3 and further ensuring the clarity of the monitoring picture; the shell 1 is provided with a motion sensor 7. When the opening and closing mechanism 4 is closed, the motion sensor 7 senses the motion signal of the monitoring area. When the motion sensor 7 senses the motion signal, the signal is transmitted to the PLC control After the PLC controller receives the signal, the PLC controller causes the driving mechanism 5 to rotate temporarily once, and sets the delay time for temporarily rotating once to close through the PLC controller. After the delay time is reached, the opening and closing mechanism 4 rotates temporarily once again to close the opening and closing mechanism 4, and the driving mechanism 5 rotates to open the opening and closing mechanism 4. The camera assembly 2 collects the signal of the monitoring area. The motion sensor 7 is connected to the PLC controller through a line. The motion sensor 7 is provided with a shielding mechanism 8. The shielding mechanism 8 is connected to the driving mechanism 5. The driving mechanism 5 is used to drive the shielding mechanism 8 to approach or move away from the motion sensor 7. When the opening and closing mechanism 4 is in an open state, the shielding mechanism 8 shields the motion sensor 7 to prevent the motion sensor 7 from sensing the motion signal.When in use, first, fix the video surveillance equipment in the area to be monitored by a bracket, and adjust the position of the surveillance equipment. Then, set the angle of each rotation of the driving mechanism 5 through the PLC controller, such as 90 degrees, 180 degrees, and set the opening and closing time period of the driving mechanism 5 through the PLC controller, such as 6:00 to 23:59 and the closing time period, such as 24:00 to 05:59. The opening and closing time period can also be adjusted according to actual needs, and the corresponding closing time period can also be adjusted according to actual needs. Set the delay time of the temporary rotation of the driving mechanism 5 through the PLC controller, such as 30 seconds to 300 seconds, and the temporary rotation is in the closing time period of the opening and closing mechanism 4. The driving mechanism 5 can also be set to rotate once every 10 minutes through the PLC controller, and rotate again after 0.5-3 seconds after rotating once, that is, the opening and closing mechanism 4 is opened for 10 minutes and closed once, and the closing time is 0.5-3 seconds to open again, forming a blinking action. The time of the blinking action can also be adjusted accordingly according to actual needs, such as 20 minutes, 30 minutes, 60 minutes, 90 minutes, 120 minutes, then the initial position of the opening and closing mechanism 4 is set to the open state, the camera assembly 2 adopts the signal of the monitoring area and transmits the signal to the central control assembly, at the same time, the shielding mechanism 8 approaches the mobile sensor 7 and shields the mobile sensor 7, at the same time, the cleaning mechanism 6 is in the closed state, then the driving mechanism 5 rotates once to make the opening and closing mechanism 4 in the closed state, at the same time, the driving mechanism 5 drives the shielding mechanism 8 away from the mobile sensor 7, the mobile sensor 7 senses the signal of the monitoring area, at the same time, the cleaning mechanism 6 is opened, the cleaning liquid in the cleaning mechanism 6 enters the closed space formed between the opening and closing mechanism 4 and the housing 1, and the cleaning liquid infiltrates the dust adhered to the surface of the lens 3, finally, the driving mechanism 5 rotates once again to make the opening and closing mechanism 4 in the open state, and the cleaning liquid in the closed space carries the dust out, ensuring the cleanliness of the surface of the lens 3, ensuring the cleanliness of the image captured by the camera assembly 2, and making the monitoring image clear; therefore, the advantage of this embodiment is that the above-mentioned setting is adopted to ensure the cleanliness of the image captured by the camera assembly 2, and make the monitoring image clear. ;

[0045] like Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 8As shown, the opening and closing mechanism 4 includes a fixed frame 401, and the fixed frame 401 can be connected to the shell 1 by bolts, and the fixed frame 401 can also be fixedly connected to the shell 1 by bonding. A sealing ring is provided between the fixed frame 401 and the shell 1, and the fixed frame 401 is provided with a cover 1 402 and a cover 2 403, and the cover 1 402 and the cover 2 403 are respectively located on both sides of the fixed frame 401, and the cover 1 402 is fixedly connected to the fixed frame 401 by welding, and the cover 2 403 is fixedly connected to the fixed frame 401 by welding. The cover 1 402, the cover 2 403 and the fixed frame 401 can also be integrally formed, and the fixed frame 401 is provided with a slide cover 1 404 and a slide cover 2 405, and the slide cover 1 404 and the slide cover 2 405 are respectively slidably connected to the fixed frame 401, A slideway is provided on the inner side of the fixed frame 401, and a slider is provided on the slide cover 1 404 and the slide cover 2 405 respectively. The slider is adapted to the slideway, and the slider and the corresponding slide cover 1 404 or slide cover 2 405 are integrally formed. The cooperation of the slideway and the slider improves the stability of the slide cover 1 404 and the slide cover 2 405. A sealing strip is provided on the end of the slide cover 1 404 near the cover 1 402. The sealing strip can be fixedly connected to the cover 1 402 by bonding, or by riveting, and the sealing strip is located between the slide cover 1 404 and the cover 1 402 to improve the sealing performance. A sealing strip is provided on the end of the slide cover 2 405 near the cover 2 403. The sealing strip can be fixedly connected to the cover 2 by bonding, or by riveting, and the sealing strip can be fixedly connected to the slide cover 1 Cover 1, the sealing strip is located between the sliding cover 2 and the sealing cover 2, which improves the sealing performance. The sliding cover 1 and the sliding cover 2 can be the same size. When the sliding cover 1 404 and the sliding cover 2 405 are the same size, the butt end of the sliding cover 1 404 and the sliding cover 2 405 is at the center line of the lens 3. The sliding cover 1 404 and the sliding cover 2 405 can also be one large and one small. When the sliding cover 1 404 and the sliding cover 2 405 are one large and one small, the butt end of the sliding cover 1 404 and the sliding cover 2 405 is at a position deviated from the center line of the lens 3. When the butt end of the sliding cover 1 404 and the sliding cover 2 405 deviates from the center line of the lens 3, it is far away from the lens of the camera assembly 2, which further ensures the clarity of the signal collected by the camera assembly 2 and the clarity of the monitoring picture. The sliding cover 1 404 is connected to the driving mechanism near the end of the sliding cover 2 405 5. The end of the slide cover 1 404 near the end of the slide cover 2 405 is fixedly connected to the sealing strip by riveting, and the end of the slide cover 2 405 near the end of the slide cover 1 404 is fixedly connected to the sealing strip by riveting. The end of the slide cover 2 405 near the end of the slide cover 1 404 is connected to the driving mechanism 5, and the driving mechanism 5 drives the slide cover 1 404 and the slide cover 2 405 to slide back and forth. The slide cover 1 404 is fixedly connected to the water-absorbing body 1 406 by bonding. The water-absorbing body 1 406 is close to the end 3 of the lens. The water-absorbing body 1 406 can be a sponge, or a cotton pad. The slide cover 2 405 is fixedly connected to the water-absorbing body 2 407 by bonding. The water-absorbing body 2 407 is close to the end 3 of the lens. The water-absorbing body 2 407 can be a sponge, or a cotton pad.The water absorbent 1 406 and the water absorbent 2 407 improve the utilization rate of the cleaning liquid and reduce the loss of the cleaning liquid. The water absorbent 1 406 and the water absorbent 2 407 are close to the lens 3 and can remove the larger dust particles attached to the surface of the lens 3 as the sliding cover 1 404 and the sliding cover 2 405 slide, further ensuring the cleanliness of the lens 3 and the cleanliness of the signal collected by the camera assembly 2, so that the monitoring picture is clear.

[0046] like Figure 1 , Figure 2 , Figure 3 , Figure 7As shown, the driving mechanism 5 includes a servo motor 501, which is connected to a PLC controller through an electric wire. The PLC controller controls the servo motor 501 to rotate. The output shaft of the servo motor 501 is connected to a driving gear 502 through a key. Both sides of the driving gear 502 are respectively connected to a transmission group 1 503 and a transmission group 2 504. The transmission group 1 503 is connected to a slide cover 1 404, and the transmission group 2 504 is connected to a slide cover 2 405. The transmission group 1 503 includes an eccentric gear 1 50301. There are multiple eccentric gears 1 50301. The multiple eccentric gears 1 50301 have different eccentric distances. A suitable one can be selected according to actual needs. The eccentric gear 50301 is rotatably connected to the housing 1 through the bracket, the eccentric gear 50301 is meshed with the driving gear 502, the eccentric gear 50301 is rotatably connected to one end of the connecting rod 50302, the other end of the connecting rod 50302 is rotatably connected to one end of the direction-changing rod 50303, the other end of the direction-changing rod 50303 is rotatably connected to one end of the guide rod 50304, the main body of the direction-changing rod 50303 is rotatably connected to the housing 1, and the other end of the guide rod 50304 is rotatably connected to the sliding cover 404; the transmission group 2 504 includes the eccentric gear 2 50401, the eccentric gear 2 There are multiple eccentric gears 50401, and the multiple eccentric gears 2 have different eccentric distances. The appropriate eccentric gear 2 50401 is selected according to actual needs. The eccentric gear 2 50401 is rotatably connected to the housing 1 through the bracket. The eccentric gear 2 50401 is meshed and connected to the driving gear 502. The eccentric gear 2 50401 is rotatably connected to one end of the connecting rod 2 50402, and the other end of the connecting rod 2 50402 is rotatably connected to the direction-changing rod 2 50403. The other end of the direction-changing rod 2 50403 is rotatably connected to one end of the guide rod 2 50404. The main body of the direction-changing rod 2 50403 is rotatably connected to the housing 1, and the other end of the guide rod 2 50404 is rotatably connected to The second slide cover 405, the servo motor 501 rotates to drive the driving gear 502 to rotate, the driving gear 502 rotates to respectively rotate the eccentric gear 1 50301 and the eccentric gear 2 50401, the eccentric gear 1 50301 rotates through the connecting rod 1 50302, the changing rod 1 50303 and the guide rod 1 50304 to drive the slide cover 1 404 to slide, the eccentric gear 2 50401 rotates through the connecting rod 2 50402, the changing rod 2 50403 and the guide rod 2 50404 to drive the slide cover 2 405 to slide, so that the opening and closing mechanism 4 is opened and closed, and a protective cover is provided outside the driving mechanism 5, and the protective cover is connected to the housing 1 through bolts.

[0047] like Figure 1 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Fig. 9 , Fig.10As shown, the cleaning mechanism 6 includes a water storage barrel 601, which is connected to the housing 1 through a bracket, and the opening and closing mechanism 4 is provided with a water inlet hole 602 through a hole punching machine, and the water inlet hole 602 is provided on the fixed frame 401. The water storage barrel 601 and the water inlet hole 602 are connected through a pipe, one end of the pipe is connected to the water outlet of the water storage barrel 601 through bolts, and the other end of the pipe is connected to the fixed frame 401 through bolts, and the outlet of the pipe is aligned with the inlet of the water inlet hole 602, and the water inlet hole 602 is provided with a valve 603 away from the end of the pipe, and the valve 603 is used to open or close the water inlet hole 602. A sponge 604 is provided near the end of the valve 603. The end of the sponge 604 near the water inlet 602 can be fixedly connected to the fixed frame 401 by bonding. The sponge 604 can also be clamped in the fixed frame 401 by interference fit. The sponge 604 is provided with a receiving hole through a machine tool. The receiving hole is adapted to the valve 603. The sponge 604 can reduce the outflow speed of the cleaning liquid, and the sponge 604 can also absorb part of the cleaning liquid, thereby reducing the loss of the cleaning liquid. The valve 603 includes a compression spring 60301, a slide rod 60302, a slide hole 60303 and a sealing plate 60304. The valve 603 is opened and closed. The mechanism 4 is provided with a plurality of sliding holes 60303 through a machine tool, and the plurality of sliding holes 60303 are arranged at intervals along the circumference of the water inlet hole 602, and a corresponding compression spring 60301 is arranged in each sliding hole 60303, one end of the compression spring 60301 is fixedly connected to the fixing frame 401 by welding, and the other end of the compression spring 60301 is fixedly connected to the corresponding sliding rod 60302 by welding, and the ends of each sliding rod 60302 away from the compression spring 60301 are fixedly connected to the sealing plate 60304 by welding, and the sliding cover 404 is driven by the driving mechanism 5 to move toward the sealing cover 404. 02 end slides, the sliding cover 404 slides to compress the sponge 604, the sliding cover 404 continues to slide to compress the compression spring 60301 to make the sealing plate 60304 move toward the water inlet hole 602 end, and the sealing plate 60304 blocks the water inlet hole 602 to prevent the cleaning liquid from continuing to flow out, the sliding cover 404 is driven by the driving mechanism 5 to slide away from the sealing cover 402 end, the sliding cover 404 slides to make the sponge 604 recover, the sliding cover 404 continues to slide the compression spring 60301 recovers to drive the sealing plate 60304 to move away from the water inlet hole 602 end, and the cleaning liquid flows out through the water inlet hole 602.

[0048] like Figure 1 , Figure 7As shown, the shielding mechanism 8 includes an elastic member 801, and the elastic member 801 can be a compression spring 60301, and the elastic member 801 can also be a telescopic rod. One end of the elastic member 801 is rotatably connected to the driving mechanism 5, and the other end of the elastic member 801 is rotatably connected to one end of the shielding sheet 802, and the other end of the shielding sheet 802 is rotatably connected to the shell 1. The driving mechanism 5 drives the shielding sheet 802 to approach or move away from the mobile sensor 7, and the mobile sensor 7 is far away from the engagement mechanism 4. A limiting rod 803 is provided, and the limiting rod 803 can be connected to the shell 1 by a thread, and the limiting rod 803 can also be connected to the shell 1 by a bolt, and the highest end of the limiting rod 803 is lower than the highest end of the shielding sheet 802. , and is higher than the lowest end of the shielding piece 802. The setting of the limit rod 803 is convenient for limiting the shielding piece 802. When the opening and closing mechanism 4 is in the open state, the shielding piece 802 completely covers the motion sensor 7. When the opening and closing mechanism 4 is in the closed state, the shielding piece 802 is away from the motion sensor 7. The motion sensor 7 senses the signal of the monitoring area. When a moving object (such as a person, animal, vehicle, etc.) appears in the monitoring area and is sensed by the motion sensor 7, the motion sensor 7 transmits the motion signal to the PLC controller. The PLC controller drives the driving mechanism 5 to rotate temporarily once, so that the opening and closing mechanism 4 is opened to facilitate the camera component 2 to collect the motion signal in the monitoring area.

[0049] A method for using a video surveillance device, including the video surveillance device in any one of the above embodiments, comprises the following steps:

[0050] Step 1: Fix the video surveillance device in the area to be monitored by means of a bracket, and adjust the position of the surveillance device so that the lens of the camera assembly 2 is aimed at the monitored area;

[0051] Step 2: Set the open position of the opening and closing mechanism 4 as the initial state, so that the camera assembly 2 can collect signals from the monitoring area. Set the angle of each rotation of the driving mechanism 5 through the PLC controller. The driving mechanism 5 rotates once to put the opening and closing mechanism 4 in the closed state, so that the lens 3 is located in the closed space formed between the opening and closing mechanism 4 and the housing 1. The driving mechanism 5 rotates again to put the opening and closing mechanism 4 in the open position.

[0052] Step 3: Set the opening time period and closing time period of the opening and closing mechanism 4 through the PLC controller. The sum of the opening time period and the closing time period is equal to 24 hours. The opening time period is convenient for the camera component 2 to collect the signal of the monitoring area and transmit it to the central control component to form a monitoring screen. The lens 3 is in a closed space during the closing time period, which ensures the cleanliness of the surface of the lens 3 and the clarity of the monitoring screen.

[0053] Step 4, when the opening and closing mechanism 4 is in the closed time period, the motion sensor 7 transmits the sensed motion signal to the PLC controller. The motion signal can come from: passing people, animals, vehicles, etc. The PLC controller causes the driving mechanism 5 to temporarily rotate once to open the opening and closing mechanism 4, and the camera component 2 collects the signal of the monitored area. The delay time for the temporary rotation of the driving mechanism 5 is set through the PLC controller, and the driving mechanism 5 rotates again to close the opening and closing mechanism 4.

[0054] Parts not described in detail in the present invention belong to common knowledge of those skilled in the art.

[0055] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A video monitoring device, comprising a monitoring unit and a central control component, wherein the monitoring unit is connected to the central control component, the monitoring unit comprises a housing (1), a camera component (2) is arranged in the housing (1), a lens (3) is arranged at one end of the camera component (2), and the lens (3) is fixedly connected to the housing (1), characterized in that: The housing (1) is provided with an opening and closing mechanism (4) near the end of the lens (3), and the opening and closing mechanism (4) is used to open or close the lens (3); The opening and closing mechanism (4) is connected to a driving mechanism (5), the driving mechanism (5) is connected to a PLC controller, and the PLC controller is connected to the housing (1); The opening and closing mechanism (4) is connected to a cleaning mechanism (6), and the cleaning mechanism (6) is connected to the housing (1); The housing (1) is provided with a motion sensor (7), the motion sensor (7) is connected to the PLC controller, the motion sensor (7) is provided with a shielding mechanism (8), and the shielding mechanism (8) is connected to the driving mechanism (5).

2. The video surveillance device according to claim 1, characterized in that: The opening and closing mechanism (4) comprises a fixed frame (401), the fixed frame (401) is connected to the housing (1), the fixed frame (401) is provided with a cover 1 (402) and a cover 2 (403), the cover 1 (402) and the cover 2 (403) are respectively located on two sides of the fixed frame (401), the fixed frame (401) is provided with a slide cover 1 (404) and a slide cover 2 (405), the slide cover 1 (404) and the slide cover 2 (405) are respectively slidably connected to the fixed frame (401), and the slide cover 1 (404) and the slide cover 2 (405) are respectively connected to the driving mechanism (5).

3. The video surveillance device according to claim 2, characterized in that: The first sliding cover (404) is provided with a water absorbing body (406) near the end of the lens (3), and the second sliding cover (405) is provided with a water absorbing body (407) near the end of the lens (3).

4. The video surveillance device according to claim 2, characterized in that: The driving mechanism (5) comprises a servo motor (501), the servo motor (501) is connected to the PLC controller, the output shaft of the servo motor (501) is connected to a driving gear (502), the two sides of the driving gear (502) are respectively connected to a transmission group 1 (503) and a transmission group 2 (504), the transmission group 1 (503) is connected to the slide cover 1 (404), and the transmission group 2 (504) is connected to the slide cover 2 (405).

5. The video surveillance device according to claim 4, characterized in that: The transmission group 1 (503) includes an eccentric gear 1 (50301), the eccentric gear 1 (50301) is meshed and connected to the driving gear (502), the eccentric gear 1 (50301) is rotatably connected to one end of a connecting rod 1 (50302), the other end of the connecting rod 1 (50302) is rotatably connected to one end of a direction-changing rod 1 (50303), the other end of the direction-changing rod 1 (50303) is rotatably connected to one end of a guide rod 1 (50304), the main body of the direction-changing rod 1 (50303) is rotatably connected to the housing (1), and the other end of the guide rod 1 (50304) is connected to the sliding cover 1 (404).

6. The video surveillance device according to claim 5, characterized in that: The transmission group 2 (504) includes an eccentric gear 2 (50401), the eccentric gear 2 (50401) is meshedly connected to the driving gear (502), the eccentric gear 2 (50401) is rotatably connected to one end of the connecting rod 2 (50402), the other end of the connecting rod 2 (50402) is rotatably connected to the direction-changing rod 2 (50403), the other end of the direction-changing rod 2 (50403) is rotatably connected to one end of the guide rod 2 (50404), the main body of the direction-changing rod 2 (50403) is rotatably connected to the housing (1), and the other end of the guide rod 2 (50404) is connected to the sliding cover 2 (405).

7. The video surveillance device according to claim 1, characterized in that: The cleaning mechanism (6) comprises a water storage bucket (601), the water storage bucket (601) is connected to the housing (1), the opening and closing mechanism (4) is provided with a water inlet hole (602), the water storage bucket (601) and the water inlet hole (602) are connected via a pipeline, a valve (603) is provided at the end of the water inlet hole (602) away from the pipeline, and a sponge (604) is provided at the end of the opening and closing mechanism (4) close to the valve (603), and the sponge (604) is provided with a receiving hole, and the receiving hole is adapted to the valve (603).

8. The video surveillance device according to claim 7, characterized in that: The valve (603) includes a compression spring (60301), a sliding rod (60302), a sliding hole (60303) and a sealing plate (60304); the opening and closing mechanism (4) is provided with a plurality of sliding holes (60303); each of the sliding holes (60303) is arranged at intervals along the circumference of the water inlet hole (602); each of the sliding holes (60303) is provided with a corresponding compression spring (60301); one end of the compression spring (60301) is connected to the opening and closing mechanism (4); the other end of the compression spring (60301) is connected to the corresponding sliding rod (60302); and each of the sliding rods (60302) is connected to the sealing plate (60304) at the end away from the compression spring (60301).

9. The video surveillance device according to claim 1, characterized in that: The shielding mechanism (8) comprises an elastic member (801), one end of the elastic member (801) is rotatably connected to the driving mechanism (5), the other end of the elastic member (801) is rotatably connected to one end of a shielding sheet (802), the other end of the shielding sheet (802) is rotatably connected to the housing (1), the driving mechanism (5) drives the shielding sheet (802) to approach or move away from the moving sensor (7), and a limiting rod (803) is provided at the end of the moving sensor (7) that is away from the engaging mechanism (4).

10. A method for using a video surveillance device, characterized in that: The video surveillance device according to any one of claims 1 to 9 comprises the following steps: Step 1: Fix the video surveillance equipment in the area that needs to be monitored; Step 2: Set the opening position of the opening and closing mechanism (4) as the initial state, and set the angle of each rotation of the driving mechanism (5) through the PLC controller. The driving mechanism (5) rotates once and the position of the opening and closing mechanism (4) is in the closed state. The driving mechanism (5) rotates once again and the opening and closing mechanism (4) is in the open position. Step 3: Setting the opening time period and closing time period of the opening and closing mechanism (4) through the PLC controller; Step 4: The motion sensor (7) transmits the sensed motion signal to the PLC controller, and the PLC controller causes the driving mechanism (5) to temporarily rotate once to open the opening and closing mechanism (4). The camera assembly (2) collects signals from the monitored area, and the PLC controller sets a delay time for the temporary rotation of the driving mechanism (5). The driving mechanism (5) rotates again to close the opening and closing mechanism (4).

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