Camera allowing for self-cleaning of lens by self-suction blowing and implementation method therefor

Abstract

Disclosed in the present invention is a camera allowing for self-cleaning of a lens by self-suction blowing and an implementation method therefor. The camera comprises: an air blowing device comprising a housing and a fan, wherein a cavity is formed in the housing; the cavity comprises a mounting area and an air duct; the fan is arranged on the mounting area; an air inlet hole for communicating the mounting area with the outside is formed in the wall of the housing; the fan faces an air inlet of the air duct so as to supply air to the air duct; the air duct varies in width, so as to achieve a pressurization effect; and an air outlet of the air duct is configured to face the outer side surface of a lens glass of the camera. Due to the fact that the air duct varies in width, airflow shuttles in the air duct, with each transition from wide to narrow, the pressure is further enhanced, finally, the airflow is blown out from the air outlet of the air duct to clean the lens glass, guaranteeing the reliable working time of the camera, reducing the shutdown maintenance frequency, and greatly improving the efficiency of port container loading and unloading operations.

Description

Self-suction blowing lens self-cleaning camera and implementation method thereof TECHNICAL FIELD

[0001] The present application relates to the technical field of camera cleaning equipment, and particularly relates to a self-suction blowing lens self-cleaning camera and an implementation method thereof. BACKGROUND

[0002] As an important logistics hub, the working environment of a port terminal is undoubtedly challenging, and is continuously invaded by various complex pollution sources. Dust in the air, visible oil stains and dirt everywhere, and unexpected sea water splashing or rain, all test the equipment tolerance of this special working place. What is particularly worth noting is that the impact of these pollutants on the camera lens cannot be ignored.

[0003] When dust, oil stains and even sea water and rain and other substances quietly adhere to the surface of the camera lens glass, a hidden erosion of the monitoring effectiveness begins quietly. Lens glass pollution not only causes the effective range of the observation field of view to be significantly reduced, and the originally wide and clear picture becomes narrow and hazy, as if covered with a thick layer of fog, which seriously hinders the depth and breadth of the line of sight of real-time monitoring. At the same time, the clarity and quality of the image also decrease significantly, with problems such as detail loss and color distortion, making the originally accurate scene unclear and difficult to identify.

[0004] The deterioration of video monitoring quality caused by lens glass pollution directly affects the core operation link of the port terminal - container loading and unloading. Drivers rely heavily on accurate views provided by the video monitoring system to ensure safe and efficient operation. However, once the monitoring picture is blurred and distorted, they will not be able to accurately judge the position, state and surrounding environment of the container, greatly increasing the risk of misoperation, and even causing the operation to be forced to stop. In this way, not only the safety of personnel and equipment is threatened, but also the overall operation efficiency of the port terminal is greatly reduced, directly affecting the speed of cargo turnover and the smooth operation of the logistics chain.

[0005] The existing solutions to the problem of camera lens glass pollution adopt the following methods:

[0006] 1. Periodic manual cleaning: assign professional personnel to clean and maintain the camera lens according to the predetermined period, and the installation position of some cameras makes the manual cleaning operation very dangerous, which may cause personnel casualties.

[0007] 2. Add a wiper mechanism in front of the camera lens glass, the wiper mechanism is exposed to harsh environments, especially the salt spray, acid and alkali pollutants and strong ultraviolet rays in the port terminal, which can easily cause material aging, corrosion and wear, and the durability and reliability are severely tested, and it is very inconvenient to repair and replace after damage, and the cost is also high.

[0008] SUMMARY

[0009] Therefore, it is necessary to provide a self-suction blowing lens self-cleaning camera and its implementation method to solve the problem of difficult cleaning of the camera lens glass.

[0010] To achieve the above purpose, the present application provides a self-suction blowing lens self-cleaning camera, comprising:

[0011] The blowing device comprises a shell and a fan, the shell is provided with a cavity, the cavity comprises a mounting area and an air duct, the fan is arranged on the mounting area, the wall of the shell is provided with an air inlet hole communicating with the mounting area and the outside, the fan faces the air inlet of the air duct to send air to the air duct, the air duct has different widths to increase the pressure, and the air outlet of the air duct faces the outer side of the camera lens glass.

[0012] Further, the air duct comprises a first booster air duct, the air inlet of the first booster air duct is the air inlet of the air duct, and the first booster air duct has a structure of narrow in the middle and wide at both ends.

[0013] Further, the air duct further comprises a second booster air duct, the air inlet of the second booster air duct is communicated with the air outlet of the first booster air duct, and the second booster air duct has a structure of narrow in the middle and wide at both ends.

[0014] Further, the air duct is located above the camera, the air inlet and the air outlet of the air duct are located on the left and right sides of the lens glass, and the air outlet of the air duct is curved and narrowed towards the lens glass.

[0015] Further, the air outlet of the air duct is provided with a wing-shaped air deflector curved towards the incoming air direction.

[0016] Further, it further comprises a filter screen, the filter screen is arranged on the air inlet hole, the air inlet hole has a plurality of air inlet holes and is located on the side of the fan, and the fan is a turbine fan.

[0017] Further, it further comprises a water spraying device, the water spraying device is arranged on the shell and used for spraying cleaning liquid to the lens glass of the camera.

[0018] Further, the water spraying device comprises a pump and a water conveying pipeline, the housing is provided with a water storage area, the pump and the water conveying pipeline, the water storage area is connected with the water inlet of the pump and the water conveying pipeline, and the water outlet of the water conveying pipeline is opposite to the outer side of the lens glass.

[0019] Further, the lower part of the housing is provided with a slot, the two sides of the slot are detachably connected with the two sides of the camera, and the housing serves as a cover of the camera.

[0020] To achieve the above-mentioned purpose, the application further provides a self-suction type blowing lens self-cleaning implementation method, which is applied to the self-suction type blowing lens self-cleaning camera in any one of the above embodiments, and the self-suction type blowing lens self-cleaning camera further comprises a control unit and a camera, the control unit comprises an image acquisition module, a micro-dust identification module and an instruction module, and the camera cleaning method comprises the following steps:

[0021] The camera acquires an image;

[0022] The image acquisition module acquires the image acquired by the camera and sends the image to the micro-dust identification module;

[0023] The micro-dust identification module identifies the pollution level corresponding to the image according to the image sent by the image acquisition module and sends the pollution level to the instruction module;

[0024] The instruction module controls the gear position of the fan of the camera according to the pollution level identified by the micro-dust identification module.

[0025] The above technical solution has the following beneficial effects:

[0026] The fan is started, external air is sucked into the installation area through the air inlet hole on the housing wall and is subjected to first pressure increase, the airflow after the first pressure increase enters the air inlet of the air duct, and due to the different widths of the air duct, the airflow shuttles inside the air duct, and each transition from wide to narrow is accompanied by further enhancement of pressure, and finally the airflow is blown out from the air outlet of the air duct to form directional high-speed airflow to clean the lens glass. The lens glass of the camera is cleaned by the blowing device, the reliable working time of the camera is ensured, the number of shutdown maintenance is reduced, the efficiency of port container loading and unloading operation is greatly improved, and the number of containers loaded and unloaded per unit time is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Fig. 1 is a sectional structure schematic view of the self-suction type blowing lens self-cleaning camera in the embodiment;

[0028] Fig. 2 is a schematic view of the airflow subjected to first pressure increase in the embodiment;

[0029] Fig. 3 is a schematic view of the airflow subjected to second pressure increase in the embodiment;

[0030] Fig. 4 is a schematic diagram of the third pressurized airflow in the embodiment;

[0031] Fig. 5 is a schematic diagram of the third pressurized airflow finally blowing out from the negative pressure air outlet in the embodiment;

[0032] Fig. 6 is a rear view of the self-cleaning camera with self-suction blowing lens in the embodiment;

[0033] Fig. 7 is a left view of the self-cleaning camera with self-suction blowing lens in the embodiment;

[0034] Fig. 8 is a perspective view of the mounting area and air duct in the embodiment;

[0035] Fig. 9 is a perspective view of two parallel air blowers in the embodiment;

[0036] Fig. 10 is a front view of the self-cleaning camera with self-suction blowing lens in the embodiment;

[0037] Fig. 11 is a perspective view of the self-cleaning camera with self-suction blowing lens in the embodiment.

[0038] Explanation of reference signs:

[0039] 1. Blowing device;

[0040] 11. Housing; 111. Mounting area; 112. Air inlet hole; 113. Slot;

[0041] 114. Air duct; 1141. First pressurized air duct; 1142. Second pressurized air duct;

[0042] 1143. Air outlet; 1144. Wing-shaped air deflector;

[0043] 12. Air blower; 121. Motor; 122. Turbine-like impeller;

[0044] 2. Water spraying device;

[0045] 21. Water storage area; 22. Pump; 23. Water delivery pipeline; 24. Water level sensor;

[0046] 3. Filter screen;

[0047] 4. Control unit;

[0048] 5. Camera;

[0049] 51. Lens glass. DETAILED DESCRIPTION

[0050] To explain the technical content, structural features, purposes and effects of the technical scheme in detail, the following will be described in detail in combination with specific embodiments and the accompanying drawings.

[0051] Please refer to Figure 1, the embodiment provides a self-suction type blowing lens self-cleaning camera, comprising:

[0052] The blowing device 1 comprises a shell 11 and a fan 12, the shell 11 is provided with a cavity, the cavity comprises a mounting area 111 and an air duct 114, the fan 12 is arranged on the mounting area 111, the shell 11 is provided with an air inlet hole 112 communicating the mounting area 111 with the outside, the fan 12 is opposite to the air inlet of the air duct to send air to the air duct 114, the air duct 114 is of different width to increase the pressure, and the air outlet 1143 of the air duct 114 is used to be opposite to the outer side of the lens glass 51 of the camera 5.

[0053] It should be noted that the camera 5 comprises the lens glass 51, the lens glass 51 is installed at the front end of the lens of the camera 5, is the outermost lens of the lens, ensures that the external environment can pass through the lens glass 51 without obstruction to enter the optical system of the camera 5, the lens glass 51 can adopt the nano vacuum coating technology, has strong hydrophobic and oleophobic properties, so that strong blowing can effectively clean the water stains and oil stains on the glass surface, and the water spraying structure can also effectively clean the dust and soil.

[0054] The above technical scheme has the following beneficial effects:

[0055] The fan 12 is started, the external air is sucked into the mounting area 111 through the air inlet hole 112 on the wall of the shell 11 and is subjected to first pressure increase, the airflow after the first pressure increase enters the air inlet of the air duct, and due to the different width of the air duct, the airflow shuttles in the air duct, and each transition from wide to narrow is accompanied by further enhancement of the pressure, finally the airflow is blown out from the air outlet of the air duct to form directional high-speed airflow to clean the lens glass 51. The lens glass 51 of the camera 5 is cleaned through the blowing device 1, the reliable working time of the camera 5 is ensured, the number of shutdown maintenance is reduced, the port container loading and unloading operation efficiency is greatly improved, and the number of containers loaded and unloaded per unit time is greatly improved.

[0056] Please refer to Figure 1, in the embodiment, the air duct comprises a first pressure-increasing air duct 1141, the air inlet of the first pressure-increasing air duct 1141 is the air inlet of the air duct, and the first pressure-increasing air duct 1141 is of a structure that the middle part is narrow and the two ends are wide. The air duct 114 further comprises a second pressure-increasing air duct 1142, the air inlet of the second pressure-increasing air duct 1142 is communicated with the air outlet of the first pressure-increasing air duct 1141, and the second pressure-increasing air duct 1142 is of a structure that the middle part is narrow and the two ends are wide.

[0057] Preferably, the first booster air duct 1141 and the second booster air duct 1142 have arc-shaped inner walls, which help to guide the airflow to flow smoothly inside the air duct, increase the airflow speed at the top and bottom, achieve the air pressure difference, and reduce the turbulence and energy loss caused by the right-angled corners or sharp edges. When the airflow passes through the arc-shaped inner walls, it can change direction smoothly, reduce resistance, and reduce noise.

[0058] Preferably, the curvature of the bottom arc of the air duct is greater than the curvature of the top arc.

[0059] The first booster air duct 1141 is the first stage of the air duct system, and its air inlet is the air inlet of the entire air duct system. The first booster air duct 1141 is designed to have a structure of "narrow in the middle and wide at both ends", that is, the internal cross-sectional area gradually shrinks from the air inlet to the middle, and then gradually expands from the middle to the air outlet. The second booster air duct 1142 is the secondary stage of the air duct system, and its air inlet is connected to the air outlet of the first booster air duct 1141. Similarly, the second booster air duct 1142 also adopts the structure of "narrow in the middle and wide at both ends", that is, the internal cross-sectional area narrows from the air inlet to the middle, and then expands from the middle to the air outlet. It should be noted that the second booster air duct 1142 and the first booster air duct 1141 can be integrally formed.

[0060] Please refer to FIG. 2. The airflow after being boosted by the fan 12 will pass through the first booster air duct 1141. According to the Coanda effect, the airflow on both sides will travel along the curved surface, the flow rate will increase, and the pressure will decrease, thereby forming an air pressure difference. Please refer to FIG. 3. Therefore, in the converging section of the first booster air duct 1141, the airflow speed increases, the pressure and density decrease, which causes the airflow after the first boosting to enter the first booster air duct 1141 faster. In the diverging section of the first booster air duct 1141, the airflow speed slows down, the pressure and density increase, thereby achieving the second boosting. Please refer to FIG. 4. The airflow after the second boosting enters the second booster air duct 1142, and the third boosting is performed through the second booster air duct 1142 to increase the airflow speed at the top and bottom and achieve the air pressure difference. Please refer to FIG. 5. The air outlet of the second booster air duct 1142 can be used as the air outlet 1143 of the air duct, that is, the negative pressure air outlet. The airflow after the third boosting will finally be blown out from the negative pressure air outlet to form a directional high-speed airflow. According to Bernoulli's principle, when the speed of a non-viscous fluid increases, the sum of the pressure and potential energy of the fluid will decrease. The high-speed airflow blown out from the negative pressure air outlet has a flow rate much greater than that of the surrounding airflow, thereby forming a strong air pressure difference in front of the lens glass 51 and introducing the surrounding air to accelerate and amplify the stable directional airflow to blow towards the lens glass 51, thereby achieving the purpose of blowing and cleaning the lens.

[0061] In some embodiments, only one pressurization can be achieved by the first pressurization air duct 1141, compared with two pressurizations achieved by the first pressurization air duct 1141 and the second pressurization air duct 1142, although the pressure and density of the airflow may be reduced, but still can provide a certain degree of pressurization effect, the disadvantage is that the pressurization effect is relatively weak. Therefore, it is preferred to use the two pressurization mode, which has a stronger pressurization effect than the one pressurization, and can further improve the pressure and speed of the airflow. In some other embodiments, a third pressurization air duct, a fourth pressurization air duct, etc. can be additionally provided away from the first pressurization air duct 1141.

[0062] Please refer to FIG. 1, in the embodiment, the air duct 114 is located above the lens glass 51, the air inlet and the air outlet 1143 of the air duct are located on the left and right sides of the lens glass 51, the air outlet 1143 of the air duct 114 is curved and narrowed towards the lens glass 51, and a negative pressure air outlet is formed. FIGS. 2-5 show that the air outlet 1143 of the air duct 114 is located on the left side of the lens glass 51, the air inlet of the air duct is located on the right side of the lens glass 51, and the air outlet 1143 of the air duct 114 is curved to the right and down, forming a curved hook shape.

[0063] In the embodiment, the air outlet 1143 of the air duct 114 is provided with a wing-shaped air deflector 1144 curved to the direction of the incoming air. FIG. 1 shows that the air outlet of the air duct is located on the left side, the air inlet of the air duct 114 is located on the right side, and the air deflector is curved to the right and up. The air deflector is actually mainly for the air outlet 1143 (negative pressure air outlet) of the air duct 114, according to the Coanda effect, the airflow at the edge will always travel along the curve, the airflow speed on the side of the air deflector is accelerated, the pressure is reduced, and an up-down pressure difference can be formed at the air outlet side, forcing the internal airflow to be discharged faster from the air outlet of the air duct.

[0064] Please refer to FIGS. 1, 6 and 7, in the embodiment, the self-suction blowing lens self-cleaning camera further comprises a filter screen 3, and the filter screen 3 is arranged on the air inlet hole 112, which can effectively filter out pollutants in the air, protect the efficient operation of the fan 12, and avoid the influence of pollutants on the internal airflow. Preferably, the filter screen 3 is a PM2.5 dustproof filter screen, which has excellent particle filtering performance and is designed to provide more delicate and efficient air pretreatment capability for the self-suction blowing lens self-cleaning camera.

[0065] Please refer to FIG. 6 and FIG. 7, in the embodiment, the air inlet hole 112 is multiple and located at the side of the fan 12. Preferably, the air inlet hole 112 is three, three air inlet holes 112 are located at three positions (such as left, right, and rear) of the fan 12, for example, the filter screen 3 in FIG. 6 protects the air inlet hole located at the rear of the fan, and the filter screen 3 in FIG. 7 protects the air inlet hole located at the left side of the fan. The fan 12 sucks a large amount of airflow from the air inlet hole 112 at three directions (three air inlets, guaranteeing the maximum air inlet amount) of left, right, and rear, and carries out the first pressure boosting, forming a cleaning airflow with sufficient kinetic energy.

[0066] Please refer to FIG. 1, in the embodiment, the fan 12 is a turbo fan 12. The turbo fan 12 can provide a sustained and stable driving force for the cleaning airflow due to its characteristics of high efficiency, low noise, small size, and stable pressure, etc., ensuring that the cleaning airflow has sufficient kinetic energy to remove the contaminants on the lens surface, while reducing the operation noise and space occupation of the device.

[0067] Please refer to FIG. 1, FIG. 8 and FIG. 9, in the embodiment, the turbo fan 12 includes a motor 121 and a turbo impeller 122. The motor 121 is arranged at the bottom of the installation area 111 as a driving source, and can be connected with the turbo impeller 122 to provide rotating power for the turbo impeller 122. The turbo impeller 122 has a plurality of spiral blades, which accelerate the air through the blades to convert mechanical energy into airflow kinetic energy. Specifically, the rotating speed of the turbo fan 12 is 100000 rpm, the air inlet speed after the first pressure boosting of the high-speed turbo can reach 20 m / s, and the air speed after the second pressure boosting can be increased by about 50%, reaching 30 m / s.

[0068] Please refer to FIG. 9, in the embodiment, the fan 12 is multiple, such as 2, 3, or 4. FIG. 9 shows that two turbo fans 12 are arranged side by side in the installation area 111.

[0069] In the embodiment, the lens glass 51 is an arc spherical surface, and the high-speed airflow is sprayed out of the arc spherical surface of the lens glass 51 by the annular cover, so as to blow away the dust and stains attached to the surface of the lens glass 51, achieving the cleaning effect.

[0070] Please refer to FIG. 1, in the embodiment, the self-suction blowing lens self-cleaning camera further includes a water spraying device 2 arranged on the shell 11, which is used for spraying cleaning liquid to the lens glass 51. The water spraying device 2 is added to introduce the cleaning liquid spraying function, which significantly enhances the cleaning ability of the device to the lens glass 51, especially for the removal effect of oil and stubborn stains, improves the depth and breadth of the cleaning effect, adapts to more extensive cleaning needs, and realizes the diversification and integration design of the cleaning mode, providing a one-stop efficient lens cleaning solution for users.

[0071] Referring to FIG. 1 and FIG. 10, in the embodiment, the water spraying device 2 comprises a pump 22 and a water delivery pipe 23, the housing 11 is provided with a water storage area 21, the pump 22 and the water delivery pipe 23, the water storage area 21 is spaced apart from the air duct, the water storage area 21 is used for storing cleaning liquid, the water storage area 21 is connected with the water inlet of the pump 22 and the water delivery pipe 23, most of the water delivery pipe 23 is located in the housing 11, and the water outlet of the water delivery pipe 23 is exposed from the housing 11 and faces the outer side of the lens glass 51. The water storage area 21 is pre-filled with suitable lens cleaning liquid. The cleaning liquid should have good decontamination ability and be harmless to the lens glass 51. When liquid cleaning is needed, the pump 22 is started, the cleaning liquid keeps stable flow under the pushing of the pump 22, the pressurized cleaning liquid flows from the water storage area 21 to the water outlet of the water delivery pipe 23 through the water delivery pipe 23, and finally sprays to the lens glass 51. After spraying the cleaning liquid, the high-speed airflow can be used to blow away the wet stains and the cleaning liquid residues by matching the air blower 12, so as to accelerate the drying of the lens glass 51, or the lens glass 51 can be naturally dried in the state without wind.

[0072] Referring to FIG. 5, FIG. 8, FIG. 9, FIG. 10 and FIG. 11, in the embodiment, the lower part of the housing 11 is provided with a slot 113, the two sides of the slot 113 are detachably connected with the two sides of the camera 5, and the housing 11 serves as a cover for the camera 5. When the cleaning device needs to be installed, the two sides of the camera 5 are only needed to be docked with the two sides of the slot 113, and the detachable connection mode (such as screws, buckles, etc.) is used for fixation, so that the installation is completed. The shape and size of the slot 113 are matched with the shape and size of the camera 5. Generally, the camera 5 is similar to a cuboid, the shape of the housing 11 can be designed as a cuboid, and the slot 113 is opened in the lower part of the housing 11 and communicates with the front end. The slot 113 is a cuboid, the camera 5 can be accommodated in the slot 113, and the slot 113 covers the upper surface of the camera 5. Such a design not only protects the camera 5 from dust, water droplets and other impurities in the external environment, but also effectively blocks the direct sunlight to prevent the camera 5 from being damaged due to overheating. Since the detachable connection mode is adopted, the user can detach and install the housing 11 at any time according to the needs, so that the maintenance, replacement or upgrade of the camera 5 is facilitated.

[0073] The embodiment also provides a self-suction type blowing lens self-cleaning implementation method, which is applied to the self-suction type blowing lens self-cleaning camera in any one of the above embodiments. The structure of the self-suction type blowing lens self-cleaning camera is shown in FIG. 1 to FIG. 11. The self-suction type blowing lens self-cleaning camera further comprises a control unit 4 and a camera 5. The control unit 4 comprises an image acquisition module, a micro-dust identification module and an instruction module. The self-suction type blowing lens self-cleaning implementation method comprises the following steps:

[0074] The camera 5 acquires images;

[0075] The image acquisition module acquires the image collected by the camera 5 and sends it to the micro-dust identification module.

[0076] The micro-dust identification module identifies the pollution level corresponding to the image according to the image sent by the image acquisition module and sends it to the instruction module.

[0077] The instruction module controls the gear of the fan 12 according to the pollution level.

[0078] The above technical solution has the following beneficial effects:

[0079] The camera 5 will continuously collect images and transmit them to the image acquisition module in the control unit 4. The image acquisition module receives and processes these images and sends them to the micro-dust identification module. The micro-dust identification module uses advanced image processing technology and algorithms to analyze the received images and identify the pollution level on the surface of the camera 5 in the image. The pollution level can be determined according to the number, distribution and color of dust, stains and other pollutants in the image. The pollution level can be divided into first-class pollution, second-class pollution, third-class pollution and no pollution. Once the micro-dust identification module determines the pollution level, it will send the relevant information to the instruction module. The instruction module intelligently controls the gear of the fan 12 in the cleaning device according to the received pollution level information. If the pollution level is high, the fan 12 instruction module will instruct the fan 12 to run at a higher gear to enhance the cleaning effect; on the contrary, if the pollution level is low, the fan 12 will run at a lower gear to avoid excessive cleaning. In this way, the camera 5 cleaning method can automatically adjust the running gear of the fan 12 according to the real-time pollution of the camera 5, effectively clean the surface of the camera 5 lens glass 51, and at the same time avoid unnecessary energy waste.

[0080] In this embodiment, the image acquisition module is connected with the camera 5, the image acquisition module is connected with the micro-dust identification module, the micro-dust identification module is connected with the instruction module, and the instruction module is connected with the fan 12 and the pump 22. The camera itself is an Ethernet communication, and the back-end software can drive the high and low levels of IO signals through Onvif, ModBus and other communication protocols, so as to realize the start and stop of system cleaning. The control mode of blowing and spraying is IO control, and the IO signal can realize the operation of blowing and spraying after being amplified by a relay.

[0081] Please refer to FIG. 8, in this embodiment, the control unit 4 can be arranged on the side wall of the installation area 111, which is convenient for heat dissipation.

[0082] Referring to FIG. 1, in the embodiment, a water amount sensor 24 is integrated in the water storage area 21, which can sense the water amount in the water storage area 21. When the water amount is left to a preset threshold (e.g. 1 / 6 of the total amount), the backend staff is informed through Ethernet communication, and appropriate cleaning agent or water is added during the next equipment inspection.

[0083] In the embodiment, the SVM classifier can be used to construct the micro dust training module, which is divided into micro dust training and verification processes. The images collected by the camera are manually labeled according to the pollution degree, which is divided into four levels: first pollution, second pollution, third pollution, and no pollution. The labeled images are divided into training set and verification set. The training set is used to train the constructed SVM classifier to obtain the parameters of the SVM classifier. Then the classification effect of the SVM classifier is tested by the verification set to obtain the hyperparameters of the SVM classifier. The SVM classifier after training and verification is used as the micro dust recognition module to recognize and classify the images obtained by the camera, and the pollution level of the camera is obtained to determine whether to start the fan and the corresponding gear.

[0084] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or terminal device. Without more limitations, the elements defined by the statement "include" or "contain" do not exclude the presence of other elements in the process, method, article or terminal device including the elements. In addition, in this document, "greater than", "less than", "exceed" and the like are understood as not including the number; "above", "below", "within" and the like are understood as including the number.

[0085] Although the above embodiments have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic creative concept, so the above description is only an embodiment of the present application, and does not limit the patent protection scope of the present application. Any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A self-cleaning camera with a self-suction blowing lens, characterized in that, The application relates to a self-suction blowing lens self-cleaning camera. The blowing device comprises a shell and a fan, the shell is internally provided with a cavity, the cavity comprises a mounting area and an air duct, the fan is arranged on the mounting area, an air inlet hole is arranged on the wall of the shell and communicates with the mounting area and the outside, the fan faces the air inlet of the air duct to send air to the air duct, the air duct is of different widths to play a role of pressure boosting, and the air outlet of the air duct is used for facing the outer side of a lens glass of a camera.

2. The self-cleaning camera of claim 1, wherein, The air duct comprises a first pressure boosting air duct, the air inlet of the first pressure boosting air duct is the air inlet of the air duct, and the first pressure boosting air duct is of a structure that the middle part is narrow and the two ends are wide.

3. The self-cleaning camera of claim 2, wherein, The air duct further comprises a second pressure boosting air duct, the air inlet of the second pressure boosting air duct communicates with the air outlet of the first pressure boosting air duct, and the second pressure boosting air duct is of a structure that the middle part is narrow and the two ends are wide.

4. The self-cleaning camera according to claim 1 or 2 or 3, wherein, The air duct is located above the camera, the air inlets and outlets of the air duct are located on the left and right sides of the lens glass, the air outlet of the air duct is curved and narrowed towards the lens glass.

5. The self-cleaning camera of claim 4, wherein, The air outlet of the air duct is internally provided with a wing-shaped air deflector which is curved towards the air direction.

6. The self-cleaning camera of claim 1, wherein, The application further comprises a filter screen, the filter screen is arranged on the air inlet hole, the air inlet hole is multiple and located on the side of the fan, and the fan is a turbine fan.

7. The self-cleaning camera of claim 1, wherein, The application further comprises a water spraying device, the water spraying device is arranged on the shell and used for spraying cleaning liquid to the lens glass of the camera.

8. The self-cleaning camera of claim 7, wherein, The water spraying device comprises a pump and a water conveying pipeline, the shell is internally provided with a water storage area, the pump and the water conveying pipeline, the water storage area is connected with the water inlet of the pump and the water conveying pipeline, and the water outlet of the water conveying pipeline faces the outer side of the lens glass.

9. The self-cleaning camera of claim 1, wherein, The lower part of the shell is provided with a slot, the two sides of the slot are detachably connected with the two sides of the camera, and the shell serves as a cover of the camera.

10. A self-suction type blow mirror self-cleaning implementation method, characterized in that, The self-suction blowing lens self-cleaning camera of any one of claims 1 to 9 further comprises a control unit and a camera, the control unit comprises an image acquisition module, a micro-dust identification module and an instruction module, and the camera cleaning method comprises the following steps: The camera acquires an image; The image acquisition module acquires the image acquired by the camera and sends the image to the micro-dust identification module; The micro-dust identification module identifies the pollution level corresponding to the image according to the image sent by the image acquisition module and sends the pollution level to the instruction module; The instruction module controls the gear position of the fan of the camera according to the pollution level identified by the micro-dust identification module.

Images