Monitoring equipment capable of reducing external interference

Abstract

The invention relates to the technical field of monitoring equipment, and discloses monitoring equipment capable of reducing external interference, which comprises a mounting bracket and a camera, the camera is rotatably connected to the middle part of the mounting bracket, and a light sensor is mounted at the top of the camera. The top of the camera is provided with a low-temperature protection trigger assembly used for protecting the light sensor in a low-temperature environment, the rear side of the camera is provided with a broadcasting loudspeaker, and the rear side of the camera is provided with a noise absorption quality adjusting assembly used for processing noise when the broadcasting loudspeaker broadcasts and regularly replacing a sound absorption material; according to the technical scheme of the invention, the influence of excessive load on the operation of the camera in the monitoring and adjusting process is avoided while the surrounding temperature neutralization adjustment protection is carried out on the light sensor, and the adjustment processing is carried out aiming at the noise influence of the place environment, so that the clear tone quality can be ensured when the related transmission content is carried out, and the crowd can timely know the transmitted information prompt.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring equipment, and in particular to a monitoring equipment capable of reducing external interference. Background Art

[0002] There are many types of monitoring equipment with different functions, which are widely used in people's daily life. At present, most of the monitoring equipment used outdoors is network cameras, which not only have video monitoring functions, but also are equipped with microphones and speakers, which can realize two-way voice calls and live broadcasts. When an emergency occurs in a public place, it can be discovered in time and the crowd can be notified or alarmed;

[0003] When using network cameras outdoors, in order to cope with changes in the brightness of the external environment, they are usually equipped with light sensors to monitor the light intensity of the surrounding environment in real time and automatically adjust the camera's exposure settings according to light changes, thereby ensuring that the image remains clear under different lighting conditions. When the light sensor detects that the ambient light has dropped to a certain threshold, it can automatically switch the camera to night vision mode to ensure monitoring effects in dark environments. However, when encountering cold winter weather, in low temperature environments, the response speed of the light sensor slows down, affecting its real-time monitoring and control capabilities. In addition, due to the influence of the dark environment at night, the night vision function of the camera may be seriously affected, and it is impossible to capture clear images in low-light environments. The camera cannot capture enough light in a weak light environment, resulting in darker images, more noise, and even blurry or unrecognizable images, which reduces the stability and reliability of the entire monitoring system and affects the monitoring effect.

[0004] In public places such as parks, squares, and scenic spots, network cameras with voice broadcasts can remind tourists to pay attention to safety, maintain order, and provide location guidance. However, the environment of outdoor places is diverse, especially when there is a large flow of people, the environment in the place will be relatively noisy, and the camera is installed at a high position, which will affect the sound quality and volume of the camera's voice broadcast. The relevant information of the place cannot be clearly conveyed, which will reduce people's trust and satisfaction with the equipment. In security monitoring, unclear voice broadcasts may lead to the inability to timely convey emergency information or alarms, affecting the timeliness and effectiveness of safety measures;

[0005] Therefore, a monitoring device capable of reducing external interference is proposed. Summary of the invention

[0006] The object of the present invention is to provide a monitoring device capable of reducing external interference, so as to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a monitoring device capable of reducing external interference, comprising a mounting bracket and a camera, the camera being rotatably connected to the middle of the mounting bracket, a light sensor being mounted on the top of the camera, a low-temperature protection triggering component for protecting the light sensor in a low-temperature environment being provided on the top of the camera, a broadcasting speaker being mounted on the rear side of the camera, a noise-absorbing quality adjustment component for absorbing noise when the broadcasting speaker is broadcasting and regularly replacing the sound-absorbing material being provided on the rear side of the camera, wherein:

[0008] The low-temperature protection trigger assembly includes a protective cover, which is fixedly connected to the top of the camera and sleeved on the outside of the light sensor. A temperature sensor is installed on the top of the protective cover. The top of the camera is located next to the protective cover and is fixedly connected to a stand. The middle of the stand is fixedly connected to a dual-axis motor, and one side driving end of the dual-axis motor is fixedly connected to a first bevel gear. A second bevel gear is rotatably connected to the center of the top of the protective cover, and the second bevel gear is meshed with the first bevel gear. A gear ring is fixedly connected to the middle of a side of the second bevel gear away from the first bevel gear. A cavity is opened inside the protective cover, and a heating plate is slidably connected to the inner wall of the cavity.

[0009] Preferably, an arc-shaped rack is fixedly connected to the middle of the inner wall of the heating plate, the arc-shaped rack is meshingly connected to the gear ring, a guide groove is opened in the middle of the inner wall of the protective cover, and the arc-shaped rack is slidably connected to the inner wall of the guide groove.

[0010] Preferably, an eccentric wheel is fixedly connected to the driving end on the other side of the dual-axis motor, and the eccentric wheel is rotatably connected to the middle part of the vertical frame, a vertical frame is fixedly connected to the middle part of one end of the vertical frame, and a rocker arm is rotatably connected to the middle part of the other end of the vertical frame, and the inner wall of the rocker arm is slidably connected to the outer wall of the eccentric wheel, and a protrusion is slidably connected to the inner wall of the vertical frame, a pressure plate is fixedly connected to the bottom of the protrusion, and the protrusion is slidably connected to the inner wall of one end of the rocker arm close to the vertical frame.

[0011] Preferably, the middle parts of the four corners of the pressure plate are slidably connected to limiting columns, the limiting columns on the four sides are fixedly connected to one end close to the camera with a contact pad, the outer walls of the limiting columns on the four sides are sleeved with connecting springs, one end of the connecting spring is fixedly connected to the pressure plate, and the other end of the connecting spring is fixedly connected to the contact pad.

[0012] Preferably, the noise absorbing quality adjustment component includes a noise sensor, which is fixedly connected to the outer wall of the camera, and a rotating shaft is rotatably connected to the middle part of the rear side of the camera. The outer wall of the rotating shaft passes through the camera and is fixedly connected to a scraper, and the upper and lower sides of the rotating shaft are fixedly connected to spring columns, and the opposite ends of the spring columns on both sides are fixedly connected to iron sheets, and the inner sides of the iron sheets on both sides are fixedly connected to sound-absorbing cotton, and the sound-absorbing cotton is attached to the outer wall of the broadcasting speaker, and a half-tooth gear is fixedly connected to the outer wall of the rotating shaft, and the rear side of the camera is located directly above the half-tooth gear and is rotatably connected to a receiving gear, and the receiving gear is meshingly connected to the half-tooth gear.

[0013] Preferably, the rear side of the camera is rotatably connected to a connecting shaft when it is located directly above the rotating shaft, a shift block is fixedly connected to the outer wall of the connecting shaft, the shift block is fixedly connected to the receiving gear, a locking rod is slidably connected to the middle part of the rear side of the camera, a return spring is sleeved on the outer wall of the locking rod, one end of the return spring is fixedly connected to the camera, and the other end of the return spring is fixedly connected to the locking rod, and docking holes are provided in the middle of the upper and lower sides of the noise sensor, and the docking holes are snap-fitted and matched with the locking rod.

[0014] Preferably, pressure sensors are fixedly connected to the outer walls of the fixed ends of the spring columns on both sides, touch balls are fixedly connected to the middle parts of the movable ends of the spring columns on both sides, a magnetic plate is fixedly connected to the middle part of the rear side of the camera near the broadcasting speaker, a heat drying channel is fixedly connected to the lower rear side of the camera, and the iron sheet and sound-absorbing cotton are slidably connected to the inner wall of the heat drying channel.

[0015] Preferably, a control switch is installed on the rear outer wall of the camera, and the control switch is electrically connected to the camera, the dual-axis motor, the temperature sensor, the heating plate, the noise sensor, the pressure sensor, the magnetic plate and the heat drying channel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting the light sensor for protection in a low temperature environment, the temperature sensor monitors the temperature of the protective cover set on the outer wall of the light sensor. When the temperature is too low, the temperature sensor transmits an electrical signal to the control switch, which controls the operation of the dual-axis motor. The ring gear rotates through the cooperation of the bevel gear set, and then the heating plate can be driven to rotate in the cavity opened on the inner wall of the protective cover under the cooperation of the meshing arc rack and the guide groove, and the heat generated by the heating plate is evenly transmitted to various areas in the protective cover, so as to achieve the neutralization of the temperature in the environment where the light sensor is located and maintain a suitable temperature range, so that the response speed of the light sensor to sense and monitor the light intensity of the surrounding environment will not be affected, thereby ensuring the stability and reliability of the camera's environmental monitoring;

[0018] 2. While the light sensor is being protected from ambient temperature neutralization and regulation, the other driving end of the dual-axis motor is also operating at the same time, and the eccentric wheel is driven to rotate, so that the lever connected to the middle of the frame can follow the rotation and swing, and then the pressure plate can move back and forth under the limit cooperation of the vertical frame, and the contact pad can contact the top of the camera during the downward movement, and a limit column and a connecting spring are set between the pressure plate and the contact pad, so that the contact pad can achieve flexible contact with the camera during the contact process. In the process of touching and vibrating the top of the camera, the rain, snow or other dust and garbage accumulated on the top of the camera can be shaken off, so as to keep the top of the camera clean and tidy, and avoid excessive weight from affecting the operation of the camera during the monitoring and adjustment process;

[0019] 3. By setting up noise sensors to monitor the noise of the place environment within the monitoring range of the camera, when there are many people in the place environment and the noise volume is too loud, the sound-absorbing cotton installed at the outlet of the broadcasting speaker can absorb and weaken the noise to ensure that the sound quality of the broadcasting content is clear enough. At the same time, the sound-absorbing cotton can be replaced and processed regularly to avoid the influence of moisture in the environment and affect the use effect. It ensures that the sound quality of the broadcasting speaker can be clear when it plays related content in the future, and the crowd can understand the information prompts in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of the overall device of the present invention;

[0021] Figure 2 It is a side view schematic diagram of the overall device of the present invention;

[0022] Figure 3 This is a partial structural schematic diagram of the low temperature protection trigger component of the present invention;

[0023] Figure 4 It is a schematic diagram of the power transmission of the low temperature protection trigger assembly of the present invention;

[0024] Figure 5 It is a top view schematic diagram of the internal structure of the protective cover of the present invention;

[0025] Figure 6 For the present invention Figure 5 The enlarged schematic diagram of point A in the middle;

[0026] Figure 7 It is a schematic diagram of the disassembled state of the inner part structure of the protective cover of the present invention;

[0027] Figure 8 Schematic diagram of the rear-view state of the camera of the present invention;

[0028] Fig. 9 It is a vertical cross-sectional schematic diagram of the broadcasting loudspeaker of the present invention;

[0029] Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of point B in the middle;

[0030] Fig.11 It is a vertical cross-sectional schematic diagram of the rotating shaft of the present invention.

[0031] In the figure:

[0032] 1. Mounting bracket; 2. Camera; 3. Control switch;

[0033] The low temperature protection trigger assembly includes: 41, a protective cover; 42, a stand; 43, a swing rod; 44, a vertical frame; 45, a dual-axis motor; 46, a first bevel gear; 47, a second bevel gear; 48, an eccentric wheel; 49, a temperature sensor; 410, a gear ring; 411, a cavity; 412, a heating plate; 413, an arc-shaped rack; 414, a guide groove; 415, a pressure plate; 416, a limit column; 417, a contact pad; 418, a connecting spring;

[0034] The noise-absorbing quality adjustment component includes: 51, noise sensor; 52, rotating shaft; 53, spring column; 54, iron sheet; 55, sound-absorbing cotton; 56, docking hole; 57, half-tooth gear; 58, receiving gear; 59, shift block; 510, locking rod; 511, reset spring; 512, touch ball; 513, pressure sensor; 514, magnetic plate; 515, hot drying channel; 516, scraper;

[0035] 6. Light sensor; 7. Broadcasting speaker. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 11 , is an embodiment of the present invention: a monitoring device capable of reducing external interference, comprising a mounting bracket 1 and a camera 2, the camera 2 being rotatably connected to the middle of the mounting bracket 1, a light sensor 6 being mounted on the top of the camera 2, a low temperature protection triggering component for protecting the light sensor 6 in a low temperature environment being provided on the top of the camera 2, a broadcasting speaker 7 being mounted on the rear side of the camera 2, a noise absorbing quality adjusting component for absorbing noise when the broadcasting speaker 7 is broadcasting and regularly replacing the sound absorbing material being provided on the rear side of the camera 2, wherein:

[0038] The low temperature protection trigger assembly includes a protective cover 41, which is fixedly connected to the top of the camera 2 and sleeved on the outside of the light sensor 6. A temperature sensor 49 is installed on the top of the protective cover 41. The top of the camera 2 is located next to the protective cover 41 and is fixedly connected to a stand 42. The middle of the stand 42 is fixedly connected to a double-axis motor 45. A first bevel gear 46 is fixedly connected to one side of the driving end of the double-axis motor 45. A second bevel gear 47 is rotatably connected to the center of the top of the protective cover 41. The second bevel gear 47 The second bevel gear 47 is meshed with the first bevel gear 46, and a gear ring 410 is fixedly connected to the middle of the side of the second bevel gear 47 away from the first bevel gear 46. A cavity 411 is provided inside the protective cover 41, and a heating plate 412 is slidably connected to the inner wall of the cavity 411. An arc-shaped rack 413 is fixedly connected to the middle of the inner wall of the heating plate 412, and the arc-shaped rack 413 is meshed with the gear ring 410. A guide groove 414 is provided in the middle of the inner wall of the protective cover 41, and the arc-shaped rack 413 is slidably connected to the inner wall of the guide groove 414;

[0039] The cavity 411 and the heating plate 412 have corresponding shapes and sizes, and the gear ring 410 and the arc-shaped rack 413 are arranged on the same horizontal line;

[0040] Preferably, the temperature sensor 49 monitors the outer wall temperature of the protective cover 41. When the external environment temperature is lower than the minimum threshold value set by the temperature sensor 49, the temperature sensor 49 transmits an electrical signal to the control switch 3, and the control switch 3 controls the operation of the dual-axis motor 45. The driving end on one side of the dual-axis motor 45 drives the first bevel gear 46 to rotate, and then drives the ring gear 410 to rotate inside the protective cover 41 with the cooperation of the second bevel gear 47. Then, with the assistance of the limiting position of the guide groove 414, the arc-shaped rack 413 meshing with the ring gear 410 can drive the heating plate 412 to rotate and move the cavity 412 opened in the protective cover 41. 11, the rotation of the heating plate 412 can transfer heat to various areas in the protective cover 41, neutralize the low temperature of the inner wall of the protective cover 41, and keep the environment of the light sensor 6 at a suitable temperature. During this process, the temperature sensor 49 still monitors the temperature of the protective cover 41. When the internal ambient temperature reaches a suitable level, the temperature neutralization process is suspended by controlling the switch 3. When the temperature is too low again, the above steps are repeated for processing, so that the reaction speed of monitoring the light intensity is not affected, ensuring good monitoring accuracy, collecting stable and clear monitoring images, and maintaining the stability and reliability of the monitoring system.

[0041] The other driving end of the dual-axis motor 45 is fixedly connected with an eccentric wheel 48, and the eccentric wheel 48 is rotatably connected to the middle part of the stand 42. The middle part of one end of the stand 42 is fixedly connected with a vertical frame 44. The middle part of the other end of the stand 42 is rotatably connected with a swing rod 43. The inner wall of the swing rod 43 is slidably connected with the outer wall of the eccentric wheel 48. The inner wall of the vertical frame 44 is slidably connected with a protrusion. The bottom of the protrusion is fixedly connected with a pressure plate 415, and the protrusion is slidably connected with the inner wall of one end of the swing rod 43 close to the vertical frame 44. The middle parts of the four corners of the pressure plate 415 are all slidably connected with limit columns 416. The four side limit columns 416 are fixedly connected with contact pads 417 at one end close to the camera 2. The outer walls of the four side limit columns 416 are sleeved with connecting springs 418. One end of the connecting spring 418 is fixedly connected to the pressing plate 415, and the other end of the connecting spring 418 is fixedly connected to the contact pad 417.

[0042] Wherein: the material of the contact pad 417 is soft rubber;

[0043] Preferably: the dual-axis motor 45 drives the protective cover 41 to perform temperature neutralization protection, and can also drive the eccentric wheel 48 to rotate in the middle of the stand 42. As the eccentric wheel 48 rotates, the swing rod 43 connected to the stand 42 can be driven to rotate in the vertical direction, so that the pressing plate 415 can be driven to move up and down along the straight track of the vertical frame 44 through the protrusion. In the process of moving downward, the pressing plate 415 can be driven to move downward synchronously, so that the contact pad 417 touches the top of the camera 2, and the contact pad 41 7 is made of flexible rubber material, and a limit column 416 and a connecting spring 418 are set between the pressure plate 415 and the contact pad 417, so that during the process of the contact pad 417 and the camera 2 contacting, a flexible contact is formed without causing damage to the camera 2. During the process of the up and down contacting again, the contact pad 417 brings intermittent cyclic vibration and knocking to the camera 2, so that the rain, snow or dust and garbage accumulated on the top of the camera 2 can be knocked down, avoiding the influence of excessive weight on the operation of the camera 2 monitoring and adjustment.

[0044] The noise-absorbing quality adjustment component includes a noise sensor 51, which is fixedly connected to the outer wall of the camera 2. A rotating shaft 52 is rotatably connected to the middle of the rear side of the camera 2. The outer wall of the rotating shaft 52 passes through the camera 2 and is fixedly connected to a scraper 516. The upper and lower sides of the rotating shaft 52 are fixedly connected to spring columns 53. The opposite ends of the spring columns 53 on both sides are fixedly connected to iron sheets 54. The inner sides of the iron sheets 54 on both sides are fixedly connected to sound-absorbing cotton 55. The sound-absorbing cotton 55 is attached to the outer wall of the broadcasting speaker 7. A half-tooth gear 57 is fixedly connected to the outer wall of the rotating shaft 52. The rear side of the camera 2 is located just above the half-toothed gear 57 and is rotatably connected to a receiving gear 58, which is meshed with the half-toothed gear 57. Pressure sensors 513 are fixedly connected to the outer walls of the fixed ends of the spring columns 53 on both sides, and touch balls 512 are fixedly connected to the middle of the movable ends of the spring columns 53 on both sides. A magnetic suction plate 514 is fixedly connected to the middle of the rear side of the camera 2 near the broadcasting speaker 7. A heat drying channel 515 is fixedly connected to the lower rear side of the camera 2, and the iron sheet 54 and the sound-absorbing cotton 55 are slidably connected to the inner wall of the heat drying channel 515.

[0045] Among them: the weight setting of the iron sheet 54 corresponds to the stiffness of the spring in the spring column 53, and the curvature of the hot drying channel 515 coincides with the rotation trajectory of the sound-absorbing cotton 55;

[0046] Better: The noise sensor 51 monitors the sound information in the place in real time, and a sound-absorbing cotton 55 is set on the outer wall of the sound outlet of the broadcasting speaker 7 to absorb the noise in the public place and reduce the impact of the echo. When the sound-absorbing cotton 55 on the outer wall of the broadcasting speaker 7 is affected by the environmental humidity and becomes damp, its weight increases and it will compress the upper spring column 53 downward under the action of gravity. As the damp range gradually increases, the downward movement of the sound-absorbing cotton 55 will continue. When the touch ball 512 set on the top of the spring column 53 contacts the pressure sensor 513, it means that the noise reduction protection set on the outside of the broadcasting speaker 7 is insufficient. The pressure sensor 513 transmits an electrical signal to the control switch 3, which controls the magnetic plate 514 to be powered on and the hot drying channel 515 to start preheating. The pressure sensor 513 and the temperature sensor 49 are set with different resistance values. When the control switch 3 identifies the electrical signal information transmitted by the corresponding sensor module, it can distinguish different sensor modules by reading these marks and control the operation of related structures accordingly. In this process, the operation of the low-temperature protection trigger component is avoided. The two are independent of each other and do not interfere with each other, so that the iron sheet 54 set on the top of the upper spring column 53 can be attracted to it and close to it. , providing attraction for the rotation of the shaft 52. When the shaft 52 rotates at a certain inclination angle, the weight of the upper sound-absorbing cotton 55 is greater than that of the lower sound-absorbing cotton 55 due to moisture, and the shaft 52 can be driven to rotate under the action of gravity. With the cooperation of the half-tooth gear 57 and the receiving gear 58, the shaft 52 can complete a rotation of 180 degrees, realizing the replacement of the sound-absorbing cotton 55 on both sides. At this time, the upper touch ball 512 and the pressure sensor 513 keep a distance and no longer abut, and then the control switch 3 controls the magnetic suction plate 514 to cut off the power. During the rotation process, the wet sound-absorbing cotton 55 can be It moves to the inside of the hot drying channel 515, undergoes drying treatment inside and is then used subsequently until the next round of rotation of the sound-absorbing cotton 55 on both sides begins, and the lower sound-absorbing cotton 55 rotates back to the outside of the broadcasting speaker 7, thereby ensuring that the damp sound-absorbing cotton 55 is fully dried. At the same time, when the touch balls 512 on both sides are not in contact with the pressure sensors 513, it indicates that the protection treatment of the broadcasting speaker 7 is in a normal state. At this time, the pressure sensor 513 transmits an electrical signal to the control switch 3, and the control switch 3 controls the hot drying channel 515 to be closed to avoid overheating caused by long-term opening.

[0047] When the rear side of the camera 2 is located directly above the rotating shaft 52, it is rotatably connected with a connecting shaft, and a shifting block 59 is fixedly connected to the outer wall of the connecting shaft, and the shifting block 59 is fixedly connected to the receiving gear 58. A locking rod 510 is slidably connected to the middle part of the rear side of the camera 2, and a reset spring 511 is sleeved on the outer wall of the locking rod 510. One end of the reset spring 511 is fixedly connected to the camera 2, and the other end of the reset spring 511 is fixedly connected to the locking rod 510. A docking hole 56 is provided in the middle of the upper and lower sides of the noise sensor 51, and the docking hole 56 is snap-fitted with the locking rod 510. A control switch 3 is installed on the outer wall of the rear side of the camera 2, and the control switch 3 is electrically connected to the camera 2, the dual-axis motor 45, the temperature sensor 49, the heating plate 412, the noise sensor 51, the pressure sensor 513, the magnetic suction plate 514 and the hot drying channel 515;

[0048] Wherein: the shifting block 59 is set in an elliptical wheel shape, and the material is selected from rubber;

[0049] Better: the reset spring 511 and the locking rod 510 are squeezed downward by the synchronous rotation of the dial block 59 so that the locking rod 510 is inserted into the docking hole 56 directly below, and the sound-absorbing cotton 55 symmetrically arranged on the lower side is driven to rotate to the outer wall of the upper broadcasting speaker 7, thereby completing the real-time noise processing of the broadcasting speaker 7. In the process of information broadcasting, the sound quality can be guaranteed to be clear, and the people in the venue can receive and understand the relevant communication content in time and take measures in time, thereby making the maintenance and processing of the entire monitoring system safer and more stable.

[0050] The above implementation works as follows:

[0051] The initialization steps are as follows:

[0052] The camera 2 is installed at a corresponding position in an outdoor public place for security monitoring, and the temperature sensor 49 and the noise sensor 51 are powered by the control switch 3 to monitor the corresponding information in the environment in real time;

[0053] The working steps are as follows:

[0054] like Figure 1 - Figure 7As shown, the temperature sensor 49 monitors the temperature of the outer wall of the protective cover 41. When the external environment temperature is lower than the minimum threshold value set by the temperature sensor 49, the temperature sensor 49 transmits an electrical signal to the control switch 3, and the control switch 3 controls the operation of the dual-axis motor 45. One side driving end of the dual-axis motor 45 drives the first bevel gear 46 to rotate, and then drives the ring gear 410 to rotate inside the protective cover 41 with the cooperation of the second bevel gear 47. Then, with the assistance of the limiting of the guide groove 414, the arc-shaped rack 413 meshing with the ring gear 410 can drive the heating plate 412 to rotate and move in the cavity 411 opened in the protective cover 41. The rotation of the heating plate 412 can transfer heat to various areas in the protective cover 41, neutralize the low temperature of the inner wall of the protective cover 41, so that the environment where the light sensor 6 is located maintains a suitable temperature, so that the reaction speed of the light intensity monitoring can be unaffected, thereby ensuring good monitoring accuracy, collecting stable and clear monitoring images, and maintaining the stability and reliability of the monitoring system.

[0055] like Figure 1 - Figure 4 As shown, the dual-axis motor 45 drives the protective cover 41 to perform temperature neutralization protection, and can also drive the eccentric wheel 48 to rotate in the middle of the stand 42. As the eccentric wheel 48 rotates, it can drive the swing rod 43 connected to the stand 42 to rotate in the vertical direction, so that the pressing plate 415 can be driven to move up and down along the straight track of the vertical frame 44 through the protrusion. In the process of moving downward, the pressing plate 415 can be driven to move downward synchronously, so that the contact pad 417 touches the top of the camera 2, and the contact pad 417 It is made of flexible rubber material, and a limit column 416 and a connecting spring 418 are arranged between the pressure plate 415 and the contact pad 417, so that the contact pad 417 can form a flexible contact without causing damage to the camera 2 during the contact process between the camera 2 and the contact pad 417. During the up and down contact process, the contact pad 417 brings intermittent cyclic vibration and knocking to the camera 2, so that the rain, snow or dust and garbage accumulated on the top of the camera 2 can be knocked down, avoiding the influence of excessive weight on the operation of the camera 2 monitoring and adjustment;

[0056] like Figure 1 - Figure 2 and Figure 8As shown, the noise sensor 51 monitors the sound information in the place in real time, and the sound-absorbing cotton 55 is arranged on the outer wall of the sound outlet of the broadcasting speaker 7 to absorb the noise in the external place and reduce the influence of the echo. When the sound-absorbing cotton 55 on the outer wall of the broadcasting speaker 7 is affected by the environmental humidity and becomes damp, its weight increases and it will compress the upper spring column 53 downward under the action of gravity. As the damp range gradually increases, the downward movement of the sound-absorbing cotton 55 will continue. When the touch ball 512 arranged at the top of the spring column 53 contacts the pressure sensor 513, it means that the noise reduction protection arranged on the outside of the broadcasting speaker 7 has been lost.

[0057] like Figure 8 - Fig.11 As shown, at this time, the pressure sensor 513 transmits an electrical signal to the control switch 3, which controls the magnetic suction plate 514 to be energized, so that the iron sheet 54 set on the top of the upper spring column 53 can be attracted to it, providing a trigger condition for the rotation of the shaft 52. The upper sound-absorbing cotton 55 is affected by moisture and its weight is greater than the lower sound-absorbing cotton 55. Therefore, under the action of gravity, the shaft 52 is driven to rotate. With the cooperation of the half-tooth gear 57 and the receiving gear 58, the shaft 52 can complete a 180-degree rotation. At this time, the magnetic suction plate 514 is powered off. During the rotation process, the wet sound-absorbing cotton 55 can move to the inside of the hot drying channel 515 under the action of gravity, and is dried inside before subsequent use. The reset spring 511 and the locking rod 510 are pressed downward by the synchronous rotation of the dial block 59 so that the locking rod 510 is inserted into the docking hole 56 directly below, and the sound-absorbing cotton 55 symmetrically arranged on the lower side is driven to rotate to the outer wall of the upper broadcasting speaker 7, thereby completing the real-time noise processing of the broadcasting speaker 7, and ensuring clear sound quality during information broadcasting. In summary, the light sensor 6 and the broadcasting speaker 7 are flexibly adjusted and protected to reduce interference from external factors, thereby ensuring stable monitoring of the safety of the venue environment by the camera 2, and the people in the venue can receive and understand the relevant communication content in a timely manner and take measures in a timely manner, thereby making the maintenance and processing of the entire monitoring system safer and more stable.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A monitoring device capable of reducing external interference, characterized in that: The invention comprises a mounting bracket (1) and a camera (2), wherein the camera (2) is rotatably connected to the middle part of the mounting bracket (1), a light sensor (6) is mounted on the top of the camera (2), a low-temperature protection trigger component for protecting the light sensor (6) in a low-temperature environment is arranged on the top of the camera (2), a broadcasting speaker (7) is mounted on the rear side of the camera (2), and a noise absorbing quality adjustment component for absorbing noise when the broadcasting speaker (7) is broadcasting and regularly replacing the sound absorbing material is arranged on the rear side of the camera (2), wherein: The low temperature protection trigger assembly comprises a protective cover (41), the protective cover (41) is fixedly connected to the top of the camera (2) and sleeved on the outside of the light sensor (6), a temperature sensor (49) is installed on the top of the protective cover (41), the top of the camera (2) is located next to the protective cover (41) and is fixedly connected to a stand (42), the middle of the stand (42) is fixedly connected to a double-axis motor (45), one side driving end of the double-axis motor (45) is fixedly connected to a first bevel gear (46), the top center of the protective cover (41) is rotatably connected to a second bevel gear (47), the second bevel gear (47) is meshingly connected to the first bevel gear (46), the middle of the side of the second bevel gear (47) away from the first bevel gear (46) is fixedly connected to a gear ring (410), the interior of the protective cover (41) is provided with a cavity (411), and the inner wall of the cavity (411) is slidably connected to a heating plate (412).

2. The monitoring device capable of reducing external interference according to claim 1, characterized in that: An arc-shaped rack (413) is fixedly connected to the middle of the inner wall of the heating plate (412), and the arc-shaped rack (413) is meshingly connected to the gear ring (410). A guide groove (414) is opened in the middle of the inner wall of the protective cover (41), and the arc-shaped rack (413) is slidably connected to the inner wall of the guide groove (414).

3. A monitoring device capable of reducing external interference according to claim 2, characterized in that: The other driving end of the dual-axis motor (45) is fixedly connected to an eccentric wheel (48), and the eccentric wheel (48) is rotatably connected to the middle part of the vertical frame (42). The middle part of one end of the vertical frame (42) is fixedly connected to a vertical frame (44), and the middle part of the other end of the vertical frame (42) is rotatably connected to a swing rod (43). The inner wall of the swing rod (43) is slidably connected to the outer wall of the eccentric wheel (48), and the inner wall of the vertical frame (44) is slidably connected to a protrusion, and the bottom of the protrusion is fixedly connected to a pressure plate (415), and the protrusion is slidably connected to the inner wall of one end of the swing rod (43) close to the vertical frame (44).

4. The monitoring device capable of reducing external interference according to claim 3, characterized in that: The middle parts of the four corners of the pressure plate (415) are slidably connected to the limiting columns (416), and one end of the limiting columns (416) on the four sides close to the camera (2) is fixedly connected to a contact pad (417), and the outer walls of the limiting columns (416) on the four sides are sleeved with connecting springs (418), one end of the connecting spring (418) is fixedly connected to the pressure plate (415), and the other end of the connecting spring (418) is fixedly connected to the contact pad (417).

5. The monitoring device capable of reducing external interference according to claim 4, characterized in that: The noise absorption quality adjustment component comprises a noise sensor (51), the noise sensor (51) is fixedly connected to the outer wall of the camera (2), a rotating shaft (52) is rotatably connected to the middle part of the rear side of the camera (2), the outer wall of the rotating shaft (52) penetrates the camera (2) and is fixedly connected to a scraper (516), the upper and lower sides of the rotating shaft (52) are fixedly connected to spring columns (53), the opposite ends of the spring columns (53) on both sides are fixedly connected to iron sheets (54), the inner sides of the iron sheets (54) on both sides are fixedly connected to sound-absorbing cotton (55), the sound-absorbing cotton (55) is attached to the outer wall of the broadcasting speaker (7), the outer wall of the rotating shaft (52) is fixedly connected to a half-toothed gear (57), the rear side of the camera (2) is located directly above the half-toothed gear (57) and is rotatably connected to a receiving gear (58), and the receiving gear (58) is meshingly connected to the half-toothed gear (57).

6. The monitoring device capable of reducing external interference according to claim 5, characterized in that: When the rear side of the camera (2) is located directly above the rotating shaft (52), it is rotatably connected to a connecting shaft, a shift block (59) is fixedly connected to the outer wall of the connecting shaft, and the shift block (59) is fixedly connected to the receiving gear (58). A locking rod (510) is slidably connected to the middle part of the rear side of the camera (2), and a return spring (511) is sleeved on the outer wall of the locking rod (510). One end of the return spring (511) is fixedly connected to the camera (2), and the other end of the return spring (511) is fixedly connected to the locking rod (510). The middle parts of the upper and lower sides of the noise sensor (51) are both provided with docking holes (56), and the docking holes (56) are snap-fitted and matched with the locking rod (510).

7. The monitoring device capable of reducing external interference according to claim 6, characterized in that: Pressure sensors (513) are fixedly connected to the outer walls of the fixed ends of the spring columns (53) on both sides, and touch balls (512) are fixedly connected to the middle parts of the movable ends of the spring columns (53) on both sides. A magnetic suction plate (514) is fixedly connected to the middle part of the rear side of the camera (2) near the broadcasting speaker (7), and a heat drying channel (515) is fixedly connected to the lower rear side of the camera (2). The iron sheet (54) and the sound-absorbing cotton (55) are slidably connected to the inner wall of the heat drying channel (515).

8. The monitoring device capable of reducing external interference according to claim 7, characterized in that: A control switch (3) is installed on the rear outer wall of the camera (2), and the control switch (3) is electrically connected to the camera (2), the dual-axis motor (45), the temperature sensor (49), the heating plate (412), the noise sensor (51), the pressure sensor (513), the magnetic suction plate (514) and the hot drying channel (515).

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