Traffic monitoring device for license plate recognition

Abstract

The invention relates to the field of license plate recognition devices, in particular to a traffic monitoring device for license plate recognition, and solves the problems of automatically cleaning a lens and avoiding camera damage caused by accidental impact, the traffic monitoring device comprises a main rod, a supporting rod is fixedly mounted on the side wall of the top of the main rod, and a camera is rotatably connected to the outer wall of the supporting rod. The rear end of the camera is fixedly provided with a protection box, and the side wall of the protection box is slidably connected with a windward plate. According to the device, automatic water collection can be achieved through the water collection tank, meanwhile, cold water can achieve the cooling effect on the camera, in the sand and dust weather, the windward plate of the device can drive the cleaning assembly to automatically clean the mirror face of the camera, sand and dust are prevented from being attached to the mirror face, the recognition efficiency and recognition precision are guaranteed, and the automatic cleaning effect is achieved; and meanwhile, the protection box of the device can play a role in protecting the camera, so that the phenomena of damage and the like are avoided, and the safety of the camera is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of license plate recognition devices, and particularly to a traffic monitoring device for license plate recognition. Background Art

[0002] With the rapid development of urban traffic, the number of vehicles on the road is increasing day by day, and traffic management is facing huge challenges. In order to achieve effective traffic management and ensure traffic safety and order, traffic monitoring systems play a crucial role in modern traffic management. License plate recognition, as one of the key technologies in traffic monitoring systems, can automatically and quickly identify the license plate information of vehicles, providing important data support for traffic law enforcement, violation investigation, vehicle tracking, etc.

[0003] In an outdoor environment, the lens is exposed to the air for a long time and is easily attached with various pollutants such as dust, rainwater, and oil stains. These pollutants will block the line of sight of the lens, resulting in a blurred license plate image being captured, thus affecting the accurate recognition of the license plate recognition algorithm. For example, in a sandstorm weather, a large amount of sand will quickly adhere to the lens surface, reducing the light transmittance of the lens. Traditional license plate recognition devices usually require manual cleaning of the lens at regular intervals. However, this method not only consumes manpower and time, but also cannot respond to sudden pollution situations in a timely manner, and cannot ensure the continuous and stable operation of the license plate recognition system.

[0004] Traffic monitoring license plate recognition devices are usually installed near roads or intersections and other locations where vehicles drive frequently, and accidental collisions are inevitable. When a vehicle or other object hits the license plate recognition device, the existing device lacks sufficient buffering and protection measures in its structural design, and key components such as cameras are easily damaged. Once the camera is damaged, not only will the license plate recognition function in this area be lost, affecting the integrity of the entire traffic monitoring system, but also a large amount of time and cost will be required for repair or replacement of equipment.

[0005] Therefore, the present invention provides a traffic monitoring device for license plate recognition to solve the above problems. Summary of the Invention

[0006] In view of the above situation, to overcome the deficiencies of the prior art, the present invention provides a traffic monitoring device for license plate recognition to solve the problems of automatically cleaning the lens and avoiding damage to the camera caused by accidental impact.

[0007] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0008] A traffic monitoring device for license plate recognition, including a main pole. A support pole is fixedly installed on the side wall at the top of the main pole. A camera is rotatably connected to the outer wall of the support pole. A protective box is fixedly installed at the rear end of the camera. An air-facing plate is slidably connected to the side wall of the protective box. A cleaning component is arranged at the front end of the camera. The air-facing plate is drivingly connected to the cleaning component. A protective plate is arranged on the outer wall of the main pole. The protective plate is drivingly connected to the camera. A water collection tank is fixedly installed on the top of the protective box. A water outlet plate is hermetically connected to the front end of the water collection tank. The water outlet plate is located at the front end of the camera and is matched with the cleaning component. Through the water collection tank, this device can achieve automatic water collection, and at the same time, the cold water can play a role in cooling the camera. In sandy weather, the air-facing plate of this device can drive the cleaning component to automatically clean the mirror surface of the camera, preventing sand and dust from adhering to the mirror surface, ensuring the recognition efficiency and recognition accuracy, achieving the effect of automatic cleaning. At the same time, the protective box of this device can play a protective role for the camera, avoiding phenomena such as damage and ensuring the safety of the camera.

[0009] Preferably, a sliding groove is formed on the outer wall of the protective box. The air-facing plate is slidably connected inside the sliding groove. A compression spring is installed inside the sliding groove. The other end of the compression spring is fixedly connected to the side of the air-facing plate.

[0010] Preferably, the cleaning component includes a reciprocating lead screw and a cleaning plate. The reciprocating lead screw is rotatably connected to the bottom of the front end of the camera. The cleaning plate is threadedly connected to the outer wall of the reciprocating lead screw. One side of the cleaning plate abuts against the outer wall of the camera. One end of the reciprocating lead screw is located outside the camera. A scroll spring is installed on the outer wall of the reciprocating lead screw. The other end of the scroll spring is fixedly connected to the outer wall of the camera. A driving cable is wound around the outer wall of the reciprocating lead screw at the end located outside the camera. The other end of the driving cable is fixedly connected to the outer wall of the air-facing plate. The reciprocating lead screw of this device can drive the cleaning plate to move left and right, and the cleaning plate is in a state of abutting against the mirror surface. Therefore, when the cleaning plate moves, it can automatically clean the mirror surface of the camera.

[0011] Preferably, a fixing plate is fixedly installed on one side of the rear end of the protection box. A reset inclined block is fixedly installed on the outer wall of the fixing plate, and the thickness of the reset inclined block increases from front to back. A opening and closing plate is slidably connected inside the windward plate. The number of the opening and closing plates is two, and the two opening and closing plates are matched with the reset inclined block. One end of the opening and closing plate is fixedly installed with an opening and closing spring, and the other end of the opening and closing spring is fixedly connected to the inner side wall of the windward plate. Friction lines are arranged on the inner wall of the windward plate, and the friction lines abut and rub against the outer wall of the opening and closing plate. When the device is initially used, the windward plate is located at the front end of the protection box. At the same time, the two opening and closing plates abut against each other under the action of the opening and closing spring. At this time, the outer wall of the windward plate is in a sealed state. When a sandstorm occurs, the front end of the windward plate abuts against the wind at this time, and the stress area is large. At this time, it will displace backward. At this time, the compression spring is in an uncompressed state. When the windward plate displaces backward, the driving cable connected to its bottom will drive the reciprocating lead screw to rotate at this time, and the scroll spring is in a compressed state. When the reciprocating lead screw rotates, the cleaning plate will clean the mirror surface at this time to avoid the adhesion of sand and dust. At the same time, to ensure the cleaning effect and avoid the situation that the device cannot achieve continuous cleaning when the sand and dust continue, when the windward plate of the device displaces to the rearmost end, the reset inclined block will abut against the end of the opening and closing plate at this time, causing the opening and closing plate to displace inward, and the opening and closing plate opens. The opening and closing plates of the device can be set in multiple pieces for the convenience of the windward plate to reset. After the opening and closing plate displaces inward, and the stress area of the windward plate decreases, it cannot meet the force for backward displacement. At this time, the windward plate resets. At the same time, under the action of the friction lines, the closing and reset of the opening and closing plate are slower. When the windward plate resets, the reciprocating lead screw reversely resets under the action of the scroll spring at this time, and at the same time winds up the driving cable, and the cleaning plate realizes secondary cleaning. When the opening and closing plate is completely reset and closed, it can realize the cleaning of the mirror surface again. The device can automatically clean the mirror surface through the cleaning plate to ensure the cleaning effect. At the same time, through the setting of the opening and closing plate, the device avoids the phenomenon that the windward plate is in the rearmost end for a long time, and avoids the situation that the device cannot achieve continuous cleaning when the sand and dust continue, ensuring long-term and cyclic cleaning. When the sand and dust do not disappear, the device can continuously clean. At the same time, through the setting of the windward plate, the heat of the camera can be exported, increasing the heat dissipation and cooling area to ensure the heat dissipation effect. And the windward plates of the device are at both ends of the camera, which can play a role in concentrating light to ensure the clarity of the camera. At the same time, when the camera drops due to external reasons, it can play a role in shock absorption and protection, achieving three effects.

[0012] Preferably, a filter plate is fixedly installed on the top of the water collecting box, and the shape of the filter plate is set to be triangular; a water diversion column is slidably connected to the inner bottom wall of the water outlet plate, and the number of the water diversion columns is multiple, and a return spring is fixedly installed on the top of the water diversion column, and the other end of the return spring is fixedly connected to the inner top wall of the water outlet plate, and the bottom of the water diversion column is located on the upper part of the camera mirror surface, and a water inlet hole is provided on the side wall of the water diversion column, and a water outlet hole is provided at the bottom of the water diversion column; the water collecting box and the water outlet plate of the device are sealed and connected, and the interior is full of water. In the initial state, under the action of the return spring, the water inlet hole and the water outlet plate are pressed against each other. When the cleaning plate is in operation, the water-guiding column is in a sealed state, and when the cleaning plate is displaced, the top of the cleaning plate will be against the water-guiding column, causing the water-guiding column to displace upward. At this time, the water inlet hole is separated from the seal with the water outlet plate, so that the inside of the water outlet plate, the water inlet hole and the water outlet hole form a fluid channel to facilitate the outflow of water inside the water collecting tank for cleaning and wiping through the cleaning plate. Through the arrangement of the water-guiding column, the device can discharge the water inside the water collecting tank when the cleaning plate is cleaning, thereby facilitating cleaning and preventing the cleaning plate from being unable to effectively clean the mirror surface. The drain port is automatically opened during cleaning to achieve a linkage effect and complete cleaning in an integrated manner. At the same time, multiple water-guiding columns can avoid waste of water resources.

[0013] Preferably, a protective airbag is provided inside the protective box, and the protective airbag is arranged in a concave shape, a partition plate is fixedly installed in the middle part of the interior of the protective box, a protective spring is fixedly installed on the outer wall of the partition plate, the other end of the protective spring is fixedly connected to one end of the protective airbag, the protective airbag matches a limiting card plate, the limiting card plate is slidably connected to the inside of the protective box, a limiting spring is fixedly installed on one end of the limiting card plate, and the other end of the limiting spring is fixedly connected to the inner wall of the protective box; when the device is in an initial state, the limiting card plate limits the protective airbag to prevent the protective airbag from being located outside the protective box, and when the device is impacted, the limiting card plate slides under the action of inertia and impact force, and the protective airbag can pop out instantly under the action of the protective spring, thereby protecting the camera of the device and preventing it from being broken.

[0014] Preferably, the main rod is internally rotatably connected to a main shaft, the support rod is internally rotatably connected to a shaft, the top of the shaft is connected to the bottom of the camera, and the shaft is driven and connected to the main shaft through a transmission belt; the device can adjust the angle of the shaft by rotating the main shaft, so as to change the monitoring angle and improve the recognition range. At the same time, when adjustment is needed, the side wall of the main rod can be adjusted without contacting the camera, thereby ensuring safety during adjustment. At the same time, the adjustment range of the device has no dead angle and can achieve stepless adjustment, with a wide range of applications.

[0015] Preferably, a convex ring is fixedly installed on the outer wall of the rotating shaft; a clamping ring is slidably connected to the inner bottom wall of the support rod. A clamping groove is formed on the inner wall of the clamping ring. The convex ring rotates inside the clamping groove. One end of the clamping ring is fixedly installed with a release cable, and the other end of the release cable is fixedly connected to the inner bottom wall of the main rod; a pressing top plate is slidably connected to the inner wall of the main rod. One end of the pressing top plate abuts against the outer wall of the release cable. A top extension spring is fixedly installed on the outer wall of the pressing top plate. The other end of the top extension spring is fixedly connected to the inner side wall of the main rod. The other end of the pressing top plate is fixedly connected to one end of the protection plate; the top extension spring of this device is a strong spring. When receiving minor impacts and vibrations, it will not cause the pressing top plate to press against the release cable. Only when this device receives a large impact, the release cable will be pulled at this time, and the clamping ring will displace in the opposite direction. At this time, the clamping ring disengages from the clamping connection with the rotating shaft, and at this time the camera is in a detached state, avoiding that when the main rod is knocked down, in order to avoid greater impact on the camera and the impact of the gravity of the main rod when the camera touches the ground. When the camera of this device is impacted, it can automatically fall off to avoid secondary damage. At the same time, the camera automatic protection component can protect the safety of the camera to the greatest extent.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. This device can achieve automatic water collection through the water collection tank. At the same time, the cold water can cool the camera. In sandy weather, the windward plate of this device can drive the cleaning component to automatically clean the mirror surface of the camera, preventing sand and dust from adhering to the mirror surface, ensuring the recognition efficiency and recognition accuracy, and achieving the effect of automatic cleaning. At the same time, the protection box of this device can protect the camera and avoid damage and other phenomena, ensuring the safety of the camera.

[0018] 2. This device can automatically clean the mirror surface through the cleaning plate to ensure the cleaning effect. At the same time, through the setting of the opening and closing plate, this device avoids the phenomenon that the windward plate is always at the rearmost end for a long time, avoiding the situation that this device cannot achieve continuous cleaning when sand and dust persist, ensuring long-term and cyclic cleaning. When sand and dust do not disappear, this device can continuously clean. At the same time, through the setting of the windward plate, this device can export the heat of the camera, increasing the heat dissipation and cooling area to ensure the heat dissipation effect. And the windward plate of this device is at both ends of the camera, which can play a role in concentrating light to ensure the clarity of the camera. At the same time, when the camera drops due to external reasons, it can play a role in shock absorption and protection, achieving triple effects.

[0019] 3. Through the setting of the water diversion column, the device can discharge the water inside the water collecting tank when the cleaning plate is cleaning, which is convenient for cleaning and prevents the cleaning plate from being unable to effectively clean the mirror surface. The drain port is automatically opened during cleaning to achieve a linkage effect and complete the cleaning in an integrated manner. At the same time, multiple water diversion columns can avoid waste of water resources.

[0020] 4. In the initial state of the device, the limit card plate limits the protective airbag to prevent the protective airbag from being located outside the protective box. When the device is hit, the limit card plate slides under the action of inertia and impact force, and the protective airbag can pop out instantly under the action of the protective spring, thereby protecting the camera of the device and preventing it from being broken.

[0021] 5. The device can adjust the angle of the shaft by rotating the main shaft, so as to change the monitoring angle and improve the recognition range. When adjustment is needed, it can be adjusted on the side wall of the main rod without contacting the camera, ensuring safety during adjustment. At the same time, the adjustment range of this device has no dead angle and can achieve stepless adjustment, with a wide range of applications.

[0022] 6. The extension spring of this device is a strong spring. When it is subjected to a slight impact or vibration, the top plate will not press against the release cable. Only when this device is subjected to a larger impact, the release cable will be pulled and the clamping ring will move in the opposite direction. At this time, the clamping ring will be disengaged from the clamping connection with the rotating shaft. At this time, the camera is in a detached state to avoid the main rod being knocked down. In order to prevent the camera from being subjected to a greater impact force and the impact force of the main rod's gravity when the camera touches the ground, the camera of this device can automatically fall off when it is hit to avoid secondary damage. At the same time, the camera automatically protects the components to protect the safety of the camera to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a front view of the present invention;

[0024] Figure 2 It is a schematic diagram of the upper part of the support rod of the present invention;

[0025] Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle;

[0026] Figure 4 is a schematic diagram of the interior of the windward plate of the present invention;

[0027] Figure 5 It is a schematic diagram of the interior of the water outlet plate of the present invention;

[0028] Figure 6 It is a schematic diagram of the interior of the water diversion column of the present invention;

[0029] Figure 7 Schematic diagram of the first cross-section of the protective box of the present invention;

[0030] Figure 8 Schematic diagram of the second cross-section of the protective box of the present invention;

[0031] Figure 9 Schematic diagram of the interior of the protective box of the present invention;

[0032] Figure 10 Schematic diagram of the interior of the main rod and the support rod of the present invention;

[0033] Figure 11 Schematic diagram of the interior of the snap ring and the exterior of the rotating shaft of the present invention.

[0034] In the figure: 1, main rod; 101, main rotating shaft; 102, transmission belt;

[0035] 2, support rod; 201, rotating shaft; 202, convex ring; 203, clamping groove; 204, snap ring; 205, release cable; 206, abutting plate; 207, top extension spring;

[0036] 3, camera; 301, reciprocating lead screw; 302, cleaning plate; 303, volute spring; 304, driving cable;

[0037] 4, protective box; 401, sliding groove; 402, compression spring; 403, fixing plate; 404, reset inclined block; 405, protective airbag; 406, partition board; 407, protective spring; 408, limit clamping plate; 409, limit spring;

[0038] 5, windward plate; 501, opening and closing plate; 502, opening and closing spring; 503, friction pattern;

[0039] 6, protective plate;

[0040] 7, water collection tank; 701, filter plate;

[0041] 8, water outlet plate; 801, water diversion column; 802, reset spring; 803, water inlet hole; 804, water outlet hole. Specific embodiments

[0042] The following will refer to the reference drawings to describe the embodiments of the present invention in detail. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0043] A traffic monitoring device for license plate recognition, as shown in the attached Figures 1-3As shown in the figure, it includes a main rod 1. A support rod 2 is fixedly installed on the side wall at the top of the main rod 1. A camera 3 is rotatably connected to the outer wall of the support rod 2. A protective box 4 is fixedly installed at the rear end of the camera 3. An air-facing plate 5 is slidably connected to the side wall of the protective box 4. A cleaning component is arranged at the front end of the camera 3. The air-facing plate 5 is drivingly connected to the cleaning component. A protective plate 6 is arranged on the outer wall of the main rod 1. The protective plate 6 is drivingly connected to the camera 3. A water collection tank 7 is fixedly installed on the top of the protective box 4. The front end of the water collection tank 7 is hermetically connected to a water outlet plate 8. The water outlet plate 8 is located at the front end of the camera 3 and is matched with the cleaning component. This device can achieve automatic water collection through the water collection tank 7. At the same time, the cold water can play a role in cooling the camera 3. In sandy weather, the air-facing plate 5 of this device can drive the cleaning component to automatically clean the mirror surface of the camera 3, preventing sand and dust from adhering to the mirror surface, ensuring the recognition efficiency and recognition accuracy, and achieving the effect of automatic cleaning. At the same time, the protective box 4 of this device can play a protective role for the camera 3, avoiding phenomena such as damage and ensuring the safety of the camera 3.

[0044] As shown in the Figure 2 figure, a chute 401 is opened on the outer wall of the protective box 4. The air-facing plate 5 is slidably connected inside the chute 401. A compression spring 402 is installed inside the chute 401. The other end of the compression spring 402 is fixedly connected to the side of the air-facing plate 5.

[0045] As shown in the Figure 3 figure, the cleaning component includes a reciprocating lead screw 301 and a cleaning plate 302. The reciprocating lead screw 301 is rotatably connected to the bottom at the front end of the camera 3. The cleaning plate 302 is threadedly connected to the outer wall of the reciprocating lead screw 301. One side of the cleaning plate 302 abuts against the outer wall of the camera 3. One end of the reciprocating lead screw 301 is located outside the camera 3. A scroll spring 303 is installed on the outer wall of the reciprocating lead screw 301. The other end of the scroll spring 303 is fixedly connected to the outer wall of the camera 3. A driving cable 304 is wound around the outer wall of the reciprocating lead screw 301 at the end located outside the camera 3. The other end of the driving cable 304 is fixedly connected to the outer wall of the air-facing plate 5. The reciprocating lead screw 301 of this device can drive the cleaning plate 302 to move left and right. Since the cleaning plate 302 is in a state of abutting against the mirror surface, when the cleaning plate 302 moves, it can automatically clean the mirror surface of the camera 3.

[0046] As shown in the Figures 2-4As shown, on one side of the rear end of the protective box 4, a fixing plate 403 is fixedly installed. On the outer wall of the fixing plate 403, a reset inclined block 404 is fixedly installed. The thickness of the reset inclined block 404 increases from front to back. Inside the windward plate 5, a switching plate 501 is slidably connected. The number of the switching plates 501 is two. The two switching plates 501 match the reset inclined block 404. One end of the switching plate 501 is fixedly installed with a switching spring 502. The other end of the switching spring 502 is fixedly connected to the inner side wall of the windward plate 5. On the inner wall of the windward plate 5, friction stripes 503 are provided. The friction stripes 503 abut and rub against the outer wall of the switching plate 501. When the device is initially used, the windward plate 5 is located at the front end of the protective box 4. At the same time, the two switching plates 501 abut against each other under the action of the switching spring 502. At this time, the outer wall of the windward plate 5 is in a sealed state. When a sandstorm occurs, at this time, the front end of the windward plate 5 abuts against the wind, and the force-bearing area is large. At this time, it will displace backward. At this time, the compression spring 402 is in a compressed state. When the windward plate 5 displaces backward, at this time, the driving cable 304 connected to its bottom will pull the reciprocating lead screw 301 to rotate, and the scroll spring 303 is in a compressed state. When the reciprocating lead screw 301 rotates, at this time, it will drive the cleaning plate 302 to clean the mirror surface to avoid the adhesion of sand and dust. At the same time, in order to ensure the cleaning effect and avoid the situation that the device cannot achieve continuous cleaning when the sand and dust continue, when the windward plate 5 of the device displaces to the rearmost end, at this time, the reset inclined block 404 will abut against the end of the switching plate 501, causing the switching plate 501 to displace inward, and the switching plate 501 opens. The switching plate 501 of the device can be set to multiple pieces for the convenience of the reset of the windward plate 5. After the switching plate 501 displaces inward, and the force-bearing area of the windward plate 5 decreases, it cannot meet the force for backward displacement. At this time, the windward plate 5 resets. At the same time, under the action of the friction stripes 503, the switching plate 501 closes and resets slowly. When the windward plate 5 resets, at this time, the reciprocating lead screw 301 reversely resets under the action of the scroll spring 303, and at the same time, the driving cable is wound up, and the cleaning plate 302 realizes secondary cleaning. When the switching plate 501 completely resets and closes, it can realize the cleaning of the mirror surface again. The device can automatically clean the mirror surface through the cleaning plate 302 to ensure the cleaning effect. At the same time, through the setting of the switching plate 501 of the device, the phenomenon that the windward plate 5 is in the rearmost end for a long time is avoided, and the situation that the device cannot achieve continuous cleaning when the sand and dust continue is avoided, ensuring long-term and cyclic cleaning. When the sand and dust do not disappear, the device can continuously clean. At the same time, through the setting of the windward plate 5 of the device, the heat of the camera 3 can be exported, increasing the heat dissipation and cooling area to ensure the heat dissipation effect. And the windward plate 5 of the device is at both ends of the camera 3, which can play a role in concentrating light to ensure the clarity of the camera. At the same time, when the camera 3 drops due to external reasons, it can play a role in shock absorption and protection, achieving triple effects.

[0047] As attached Figure 2and attached Figures 5-6 As shown, a filter plate 701 is fixedly installed on the top of the water collecting box 7, and the shape of the filter plate 701 is set to be triangular; a water guide column 801 is slidably connected to the inner bottom wall of the water outlet plate 8, and the number of water guide columns 801 is multiple. A reset spring 802 is fixedly installed on the top of the water guide column 801, and the other end of the reset spring 802 is fixedly connected to the inner top wall of the water outlet plate 8, and the bottom of the water guide column 801 is located on the upper part of the mirror surface of the camera 3. When the cleaning plate 302 is displaced, the top of the cleaning plate 302 will abut against the water guide column 801, and the water guide column 801 will move upward. A water inlet hole 803 is opened on the side wall of the water guide column 801, and a water outlet hole 804 is opened at the bottom of the water guide column 801; the water collecting box 7 and the water outlet plate 8 of the device are sealed and connected, and the interior is full of water. In the initial state, under the action of the reset spring 802, the water inlet hole 803 is opened on the side wall of the water guide column 801, and the water outlet hole 804 is opened on the bottom of the water guide column 801. The water hole 803 is against the water outlet plate 8, and the water guide column 801 is in a sealed state at this time. When the cleaning plate 302 is displaced, the top of the cleaning plate 302 will be against the water guide column 801, causing the water guide column 801 to move upward. At this time, the water inlet hole 803 is separated from the seal with the water outlet plate 8, so that the interior of the water outlet plate 8, the water inlet hole 803 and the water outlet hole 804 form a fluid channel to facilitate the outflow of water from the water collecting box 7 and to be cleaned and wiped by the cleaning plate 302. Through the provision of the water guide column 801, the device can discharge the water inside the water collecting box 7 when the cleaning plate 302 is cleaning, so as to facilitate cleaning and prevent the cleaning plate 302 from being unable to effectively clean the mirror surface. The drain port is automatically opened during cleaning to achieve a linkage effect and complete cleaning in an integrated manner. At the same time, multiple water guide columns 801 can avoid waste of water resources.

[0048] As attached Figures 7-9 As shown, a protective airbag 405 is arranged inside the protective box 4, and the protective airbag 405 is arranged in a concave shape. A partition plate 406 is fixedly installed in the middle of the interior of the protective box 4, and a protective spring 407 is fixedly installed on the outer wall of the partition plate 406. The other end of the protective spring 407 is fixedly connected to one end of the protective airbag 405. The protective airbag 405 matches a limiting card plate 408, and the limiting card plate 408 is slidably connected to the interior of the protective box 4. A limiting spring 409 is fixedly installed on one end of the limiting card plate 408. The limiting spring The other end of 409 is fixedly connected to the inner wall of the protective box 4; when the device is in the initial state, the limiting card plate 408 limits the protective airbag 405 to prevent the protective airbag 405 from being located outside the protective box 4; when the device is hit, the limiting card plate 408 slides under the action of inertia and impact force, and the protective airbag 405 can be instantly popped out under the action of the protective spring 407, thereby protecting the camera 3 of the device and preventing it from being broken.

[0049] As attached Figure 10As shown in the figure, a main rotating shaft 101 is rotatably connected inside the main rod 1, and a rotating shaft 201 is rotatably connected inside the support rod 2. The top of the rotating shaft 201 is connected to the bottom of the camera 3, and the rotating shaft 201 is drivingly connected to the main rotating shaft 101 through a transmission belt 102. This device can adjust the angle of the rotating shaft 201 by rotating the main rotating shaft 101, thereby changing the monitoring angle, improving the recognition range. At the same time, when adjustment is needed, it can be adjusted on the side wall of the main rod 1 without contacting the camera 3, ensuring safety during adjustment. At the same time, the adjustment range of this device has no dead angle and can achieve stepless adjustment, with a wide range of applications.

[0050] As shown in the attached Figures 10-11 figure, a convex ring 202 is fixedly installed on the outer wall of the rotating shaft 201; a clamping ring 204 is slidably connected to the inner bottom wall of the support rod 2. A clamping groove 203 is formed on the inner wall of the clamping ring 204, and the convex ring 202 rotates inside the clamping groove 203. One end of the clamping ring 204 is fixedly installed with a release cable 205, and the other end of the release cable 205 is fixedly connected to the inner bottom wall of the main rod 1; a pressing top plate 206 is slidably connected to the inner wall of the main rod 1. One end of the pressing top plate 206 abuts against the outer wall of the release cable 205. A top extension spring 207 is fixedly installed on the outer wall of the pressing top plate 206, and the other end of the top extension spring 207 is fixedly connected to the inner side wall of the main rod 1. The other end of the pressing top plate 206 is fixedly connected to one end of the protection plate 6. The top extension spring 207 of this device is a strong spring. When subjected to minor impacts and vibrations, it will not cause the pressing top plate 206 to abut against the release cable 205. Only when this device is subjected to a large impact, the release cable 205 will be pulled at this time, and the clamping ring 204 will displace in the opposite direction. At this time, the clamping ring 204 disengages from the clamping connection with the rotating shaft 201, and at this time the camera 3 is in a detached state. To avoid the camera 3 being damaged more severely when the main rod 1 is knocked down, and to avoid the impact force of the gravity of the main rod 1 when the camera 3 touches the ground, the camera 3 of this device can automatically fall off when subjected to an impact, avoiding secondary damage. At the same time, the camera 3 automatic protection component can protect the safety of the camera 3 to the greatest extent.

[0051] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating directions or position relationships are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A traffic monitoring device for license plate recognition, comprising a main pole (1), characterized in that: A support rod (2) is fixedly mounted on the side wall at the top of the main rod (1); a camera (3) is rotatably connected to the outer wall of the support rod (2); a protective box (4) is fixedly mounted at the rear end of the camera (3); a windward plate (5) is slidably connected to the side wall of the protective box (4); a cleaning component is arranged at the front end of the camera (3); the windward plate (5) is drivingly connected to the cleaning component; a protective plate (6) is arranged on the outer wall of the main rod (1); the protective plate (6) is drivingly connected to the camera (3); a water collecting box (7) is fixedly mounted on the top of the protective box (4); a water outlet plate (8) is sealingly connected to the front end of the water collecting box (7); the water outlet plate (8) is located at the front end of the camera (3) and matches the cleaning component.

2. A traffic monitoring device for license plate recognition according to claim 1, characterized in that: A sliding groove (401) is provided on the outer wall of the protection box (4), and the windward plate (5) is slidably connected to the inside of the sliding groove (401). A compression spring (402) is installed inside the sliding groove (401), and the other end of the compression spring (402) is fixedly connected to the side of the windward plate (5).

3. A traffic monitoring device for license plate recognition according to claim 2, characterized in that: The cleaning assembly comprises a reciprocating screw (301) and a cleaning plate (302); the bottom of the front end of the camera (3) is rotatably connected to the reciprocating screw (301); the cleaning plate (302) is threadedly connected to the outer wall of the reciprocating screw (301); one side of the cleaning plate (302) abuts against the outer wall of the camera (3); one end of the reciprocating screw (301) is located outside the camera (3); a volute spring (303) is installed on the outer wall of the reciprocating screw (301); the other end of the volute spring (303) is fixedly connected to the outer wall of the camera (3); a driving cable (304) is wound around the outer wall of the reciprocating screw (301) at one end outside the camera (3); the other end of the driving cable (304) is fixedly connected to the outer wall of the windward plate (5).

4. A traffic monitoring device for license plate recognition according to claim 3, characterized in that: A fixing plate (403) is fixedly mounted on one side of the rear end of the protection box (4), a reset bevel block (404) is fixedly mounted on the outer wall of the fixing plate (403), and the reset bevel block (404) increases in thickness from front to back; An opening and closing plate (501) is slidably connected inside the windward plate (5), and there are two opening and closing plates (501). The two opening and closing plates (501) match the reset inclined block (404). An opening and closing spring (502) is fixedly mounted on one end of the opening and closing plate (501), and the other end of the opening and closing spring (502) is fixedly connected to the inner wall of the windward plate (5). Friction lines (503) are provided on the inner wall of the windward plate (5), and the friction lines (503) are rubbed against the outer wall of the opening and closing plate (501).

5. A traffic monitoring device for license plate recognition according to claim 4, characterized in that: A filter plate (701) is fixedly mounted on the top of the water collecting box (7), and the filter plate (701) is triangular in shape; A water diversion column (801) is slidably connected to the inner bottom wall of the water outlet plate (8), and the number of the water diversion columns (801) is multiple. A reset spring (802) is fixedly installed on the top of the water diversion column (801), and the other end of the reset spring (802) is fixedly connected to the inner top wall of the water outlet plate (8). The bottom of the water diversion column (801) is located on the upper part of the mirror surface of the camera (3). A water inlet hole (803) is opened on the side wall of the water diversion column (801), and a water outlet hole (804) is opened at the bottom of the water diversion column (801).

6. A traffic monitoring device for license plate recognition according to claim 5, characterized in that: A protective airbag (405) is arranged inside the protective box (4), and the protective airbag (405) is arranged in a concave shape. A partition plate (406) is fixedly installed in the middle of the interior of the protective box (4), and a protective spring (407) is fixedly installed on the outer wall of the partition plate (406). The other end of the protective spring (407) is fixedly connected to one end of the protective airbag (405). The protective airbag (405) matches a limiting card plate (408), and the limiting card plate (408) is slidably connected to the interior of the protective box (4). A limiting spring (409) is fixedly installed on one end of the limiting card plate (408), and the other end of the limiting spring (409) is fixedly connected to the inner wall of the protective box (4).

7. A traffic monitoring device for license plate recognition according to claim 6, characterized in that: The main rod (1) is internally rotatably connected to a main rotating shaft (101), the support rod (2) is internally rotatably connected to a rotating shaft (201), the top of the rotating shaft (201) is connected to the bottom of the camera (3), and the rotating shaft (201) is drivingly connected to the main rotating shaft (101) via a transmission belt (102).

8. A traffic monitoring device for license plate recognition according to claim 7, characterized in that: A convex ring (202) is fixedly mounted on the outer wall of the rotating shaft (201); A clamping ring (204) is slidably connected to the inner bottom wall of the support rod (2), a clamping groove (203) is provided on the inner wall of the clamping ring (204), the convex ring (202) rotates inside the clamping groove (203), a release cable (205) is fixedly installed at one end of the clamping ring (204), and the other end of the release cable (205) is fixedly connected to the inner bottom wall of the main rod (1); A push plate (206) is slidably connected to the inner wall of the main rod (1), one end of the push plate (206) pushes against the outer wall of the release cable (205), an extension spring (207) is fixedly installed on the outer wall of the push plate (206), the other end of the extension spring (207) is fixedly connected to the inner wall of the main rod (1), and the other end of the push plate (206) is fixedly connected to one end of the protective plate (6).

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