CN111917960A - Camera with self-cleaning function and self-cleaning method thereof - Google Patents
Camera with self-cleaning function and self-cleaning method thereof Download PDFInfo
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- CN111917960A CN111917960A CN202010805892.8A CN202010805892A CN111917960A CN 111917960 A CN111917960 A CN 111917960A CN 202010805892 A CN202010805892 A CN 202010805892A CN 111917960 A CN111917960 A CN 111917960A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
- B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
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- Camera Bodies And Camera Details Or Accessories (AREA)
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Abstract
The invention provides a camera with a self-cleaning function and a self-cleaning method thereof, which mainly transmit information to a main chip of an ECU (electronic control unit) after an environment image is collected by a photosensitive chip, process the environment image and judge whether the environment image is dirty or not by the main chip, and control a power supply chip by a Micro Control Unit (MCU) according to the detected dirty grade so as to control piezoelectric ceramics to realize the dirty treatment of the surface of a front-end lens.
Description
Technical Field
The invention relates to the field of cameras, in particular to a camera with a self-cleaning function and a self-cleaning method thereof.
Background
The wide application and low cost of the camera makes it an important component of Advanced Driving Assistance System (ADAS). The ADAS senses the surrounding road environment by means of the image acquired by the camera, and realizes special functions of landmark identification, lane line induction, pedestrian identification, vehicle identification and the like. The camera installed outside the automobile is easily influenced by environments such as mud, rainwater, ice and snow, the surface of the lens is easily polluted, the picture is partially or completely shielded, the realization of the ADAS function is influenced, and even safety accidents are caused. And current on-vehicle camera belt cleaning device usually includes the liquid reserve tank, the gas transmission pipeline, infusion pipeline and nozzle, the system is complicated, it is troublesome to arrange, it is with high costs, and adopt aqueous phase flow or gaseous phase flow abluent cleaning time long, the cleanliness factor is not high, the energy consumption is high, the cleaning efficiency is low, need supply after the washing is accomplished and blow and dispel camera surface cleaning liquid, and not good to lipid material cleaning performance, can't cover multi-purpose scene demand, in addition still need frequent artifical supplementary washing liquid, can't satisfy the market demand.
Disclosure of Invention
The invention provides a camera with a self-cleaning function and a self-cleaning method thereof, which realize automatic cleaning by replacing the traditional water vapor cleaning by using mechanical vibration generated by ultrasonic waves and effectively reduce the cleaning energy consumption.
The method specifically comprises the following steps:
a camera with a self-cleaning function comprises a front-end lens, a photosensitive chip, a circuit board electrically connected with the photosensitive chip, and a fixing component for fixing the front-end lens and the photosensitive chip on the optical axis direction of the front-end lens, wherein a shot object is defined to be positioned in front of the optical axis direction; wherein, the camera still includes: the end part of the piezoelectric ceramic fixed in the fixed component is contacted with the rear side or the peripheral side surface of the front end lens and is electrically connected with the circuit board.
Further, the piezoelectric ceramic is annular, one end of the piezoelectric ceramic abuts against the outer periphery of the rear side surface of the front end lens, and the other end of the piezoelectric ceramic is electrically connected with the circuit board; the surface roughness of the portion of the front lens in contact with the piezoelectric ceramic is higher than the surface roughness of the portion not in contact with the piezoelectric ceramic. Preferably, the piezoelectric ceramic is used for converting an electrical signal sent by the control circuit into mechanical energy, so as to excite the front-end lens to vibrate and realize decontamination.
Further, the fixing assembly includes:
pressing a ring by the camera; and the number of the first and second groups,
a lens holder having a substantially columnar shape, a through hole formed in the center thereof, and a groove formed in the front end surface thereof for accommodating the piezoelectric ceramic;
wherein the pressing ring is fixed on the front end part of the lens support so as to fix the front end lens between the pressing ring and the front end part of the lens support and enable the end part of the piezoelectric ceramics to be abutted against the front end lens.
Further, the circuit board is fixed on the rear end part of the lens support; the photosensitive chip is fixed on the circuit board and used for collecting an environment image, converting the environment image into electronic information and transmitting the electronic information to the control circuit.
Furthermore, the lens support also comprises a flexible flat cable connected between the piezoelectric ceramics and the circuit board, and a groove or a hole for the flexible flat cable to pass through is formed on the lens support.
The lens support is provided with a through hole, a rear group lens group is fixed in the through hole of the lens support, a camera rear cover is connected at the rear end part of the lens support, and a second circuit board is fixed in the camera rear cover and electrically connected with the circuit board.
As another preferred aspect, the present invention provides a camera head with a self-cleaning function, further comprising a camera head assembly connected to each other, wherein the camera head assembly comprises a camera head front cover assembly and a camera head rear cover assembly, and a front lens is fixed to the camera head front cover assembly and the camera head rear cover assembly.
Wherein, camera front cover subassembly includes at least:
the photosensitive chip is used for collecting an environment image, converting the environment image into electronic information and transmitting the electronic information to the control circuit;
the piezoelectric ceramic is used for converting the electric signal sent by the control circuit into mechanical energy so as to further excite the front-end lens to vibrate and realize decontamination;
the control circuit is used for judging whether the front-end lens is dirty or not according to the information output by the photosensitive chip, generating a dirty grade and controlling the piezoelectric ceramics to work according to the dirty grade.
The piezoelectric ceramic is in a circular ring structure, a conductor layer is electroplated on the surface of the inner wall and the surface of the outer wall of the piezoelectric ceramic, and the end part of the piezoelectric ceramic is in contact with the front-end lens.
As another preferred aspect, the present invention further provides a self-cleaning method for a camera with a self-cleaning function, including the steps of:
s1: starting a system to perform calibration and calibration;
s2: and (3) detecting dirt: collecting an environment image, judging whether the front-end lens is dirty or not according to the collected environment image, if so, performing step S3, otherwise, performing next group of environment image collection;
s3: setting a cleaning mode: controlling the piezoelectric ceramics to work according to the dirt grade; when the dirt is liquid, starting a cleaning mode 1; when the dirt is ice and snow, starting a cleaning mode 2; when the dirt is mud, starting a cleaning mode 3; otherwise, starting a cleaning mode 4;
s4: cleaning and checking: the piezoelectric ceramic drives the front-end lens to vibrate to complete dirt cleaning, whether the cleaning degree reaches a threshold value is judged, and if the cleaning degree reaches the threshold value, the step S2 is returned; otherwise, the cleaning mode 5 is started.
The piezoelectric ceramics execute corresponding front-end lens decontamination vibration according to electric signals of different cleaning modes.
In summary, the invention provides a camera and a method, which mainly use a photosensitive chip to collect an environment image, transmit information to a main chip of an ECU, process the environment image and judge whether there is dirt, control a power supply chip through a micro control unit MCU according to the detected dirt level, and further control piezoelectric ceramics to realize surface dirt processing of a front-end lens, thereby simplifying the steps of camera cleaning, greatly reducing system cost, and being more convenient to install and maintain compared with a conventional cleaning device, greatly improving system reliability.
Drawings
Fig. 1 is a schematic view of a camera in an embodiment.
Fig. 2 is a schematic diagram of an ultrasonic-based camera cleaning principle in an embodiment.
Fig. 3 is a flowchart of an ultrasonic-based camera cleaning method in an embodiment.
Detailed Description
The following describes a camera with a self-cleaning function and a self-cleaning method thereof in detail with reference to specific embodiments and accompanying drawings.
As shown in fig. 1, the camera is shown, wherein, 1-front lens, 2-rubber ring, 3-pressing ring, 4-piezoelectric ceramic, 5-back lens group, 6-front cover of camera, 7-threaded pressing ring, 8-Flexible Flat Cable (FFC), 9-photosensitive chip, 10-printed circuit board 1, 11-printed circuit board 2, 12-back cover of camera, and 13-pin. Preferably, the camera head of the invention converts electric energy into mechanical energy mainly through the piezoelectric transducer, and transmits the mechanical energy to the cleaning surface. Causing the elastic particles on the cleaning surface to vibrate and repeatedly impact the dirt layer, and finally breaking the dirt layer to separate from the cleaning surface. Thereby replacing the cleaning liquid of the camera and the matched device thereof in the prior art.
The camera comprises a front-end lens, a photosensitive chip, a circuit board electrically connected with the photosensitive chip, and a fixing component for fixing the front-end lens and the photosensitive chip on the optical axis direction of the front-end lens, wherein a shot object is defined to be positioned in front of the optical axis direction; wherein, the camera still includes: the end part of the piezoelectric ceramic fixed in the fixed component is contacted with the rear side or the peripheral side surface of the front end lens and is electrically connected with the circuit board.
Further, the piezoelectric ceramic is annular, one end of the piezoelectric ceramic abuts against the outer periphery of the rear side surface of the front end lens, and the other end of the piezoelectric ceramic is electrically connected with the circuit board; the surface roughness of the portion of the front lens in contact with the piezoelectric ceramic is higher than the surface roughness of the portion not in contact with the piezoelectric ceramic. Preferably, the piezoelectric ceramic is used for converting an electrical signal sent by the control circuit into mechanical energy, so as to excite the front-end lens to vibrate and realize decontamination.
Further, the fixing assembly includes:
pressing a ring by the camera; and the number of the first and second groups,
a lens holder having a substantially columnar shape, a through hole formed in the center thereof, and a groove formed in the front end surface thereof for accommodating the piezoelectric ceramic;
wherein the pressing ring is fixed on the front end part of the lens support so as to fix the front end lens between the pressing ring and the front end part of the lens support and enable the end part of the piezoelectric ceramics to be abutted against the front end lens.
Further, the circuit board is fixed on the rear end part of the lens support; the photosensitive chip is fixed on the circuit board and used for collecting an environment image, converting the environment image into electronic information and transmitting the electronic information to the control circuit.
Furthermore, the lens support also comprises a flexible flat cable connected between the piezoelectric ceramics and the circuit board, and a groove or a hole for the flexible flat cable to pass through is formed on the lens support.
The lens support is provided with a through hole, a rear group lens group is fixed in the through hole of the lens support, a camera rear cover is connected at the rear end part of the lens support, and a second circuit board is fixed in the camera rear cover and electrically connected with the circuit board.
Meanwhile, the camera with the self-cleaning function further comprises camera assemblies which are connected with each other, and each camera assembly comprises a camera front cover assembly and a camera rear cover assembly.
Wherein, camera front cover subassembly includes at least:
the photosensitive chip is used for collecting an environment image, converting the environment image into electronic information and transmitting the electronic information to the control circuit;
the piezoelectric ceramic is used for converting the electric signal sent by the control circuit into mechanical energy so as to excite the front-end lens to vibrate and realize decontamination; preferably, the piezoelectric ceramic is of a circular ring structure, and a conductor layer is electroplated on the surfaces of the inner wall and the outer wall of the piezoelectric ceramic.
The control circuit comprises a main chip, a Micro Control Unit (MCU) and a power chip, wherein the main chip is used for judging whether the front-end lens is polluted or not and generating a pollution grade; and the micro control unit MCU controls the power supply chip to send an electric signal to the piezoelectric ceramic at preset current and frequency according to the dirt grade.
Further, the camera front cover assembly further includes:
the front-end lens is fixedly bonded on the piezoelectric ceramics through glue and used for receiving the vibration of the piezoelectric ceramics and removing surface dirt; preferably, the front end lens is an optical lens, preferably a spherical mirror or a plane lens, which are not limited to the above, the outer surface of the front end lens is coated with a hydrophobic film, the fixing position of the front end lens and the piezoelectric ceramic increases the surface roughness, and the outer circle of the front end lens is provided with a sinking platform structure matched with the silica gel ring to prevent the camera from water inflow. The glue is epoxy structural glue. As another preference, the front lens includes at least 3 pieces.
The rubber ring is vulcanized on the pressing ring through a low-pressure forming process and is used for sealing and waterproofing; preferably, the rubber ring is made of ethylene propylene diene monomer, has very strong weather resistance and corrosion resistance, and ensures the balance of the waterproof performance and the vibration performance of the front-end lens of the product by setting a standard compression rate.
The clamping ring is fixed on the camera front cover through thread fit and used for fixing the front end lens and providing compressive stress, and further, the camera clamping ring is provided with a structure for controlling the compression ratio of the rubber ring and used for improving the accuracy of the camera.
The back lens group is fixed on the front cover through the shaft hole in a matched mode and used for focusing light rays and improving the imaging quality.
And the threaded compression ring is fixed on the camera front cover through threaded fit and is used for fixing the back lens group.
The camera front cover is sealed with the rear cover by laser welding, and as another preferable mode, the camera front cover can be sealed with the rear cover by ultrasonic welding and screw fastening, and the camera front cover is not limited to the above mode; the piezoelectric ceramic, the back lens group, the pressing ring, the threaded pressing ring and the printed circuit board 1 are used for supporting and fixing the piezoelectric ceramic, the back lens group, the pressing ring, the threaded pressing ring and the printed circuit board.
One end of the flexible flat cable is fixed on the piezoelectric ceramic through welding, and the other end of the flexible flat cable is connected with the printed circuit board 1 through welding or a connector.
The photosensitive chip is welded on the printed circuit board 1.
Further, the camera rear cover assembly still includes:
the printed circuit board 2 is fixed on the camera back cover through screws, preferably, the printed circuit board can be adhered to the camera front cover through glue, and then is in electric signal connection with the pin in a fish eye terminal (Press fit) mode, preferably, the printed circuit board can be connected through a via hole welding process;
the camera rear cover is fixed on the vehicle body through an external bracket and is used for supporting the pin needle, the printed circuit board 2 and the camera front cover;
the pin needle is injected and molded on the rear cover in the mold and used for transmitting electric signals, and the camera is connected with the control circuit.
As shown in fig. 2, the ultrasonic-based camera cleaning principle of the present invention is specifically that after the environmental image is collected by the photosensitive chip, information is transmitted to a system on chip (SoC) of the control circuit ECU, an image is identified through algorithm processing to determine whether the front end lens of the camera is dirty, after a dirty level is obtained, a signal is transmitted to a Micro Control Unit (MCU), the MCU controls the power supply chip (Driver) to transmit to the piezoelectric ceramic (Driver) at a preset current and frequency, and the piezoelectric ceramic receives the electrical signal and converts the electrical signal into mechanical energy to excite the front end lens to vibrate, so that the surface of the front end lens is dirty and falls off.
As another preferred, the present invention further provides a self-cleaning method of a camera with a self-cleaning function (as shown in fig. 3), comprising the following steps:
s1: starting a system to perform calibration and calibration;
s2: and (3) detecting dirt: collecting an environmental image, converting the environmental image into electronic information, transmitting the electronic information to a control circuit, judging whether the front-end lens is dirty or not, if so, performing step S3, otherwise, performing next group of environmental image collection;
s3: setting a cleaning mode: controlling the power supply chip to send an electric signal to the piezoelectric ceramic at a preset current and frequency according to the dirt grade; when the dirt is liquid, starting a cleaning mode 1; when the dirt is ice and snow, starting a cleaning mode 2; when the dirt is mud, starting a cleaning mode 3; otherwise, starting a cleaning mode 4;
s4: cleaning and checking: the piezoelectric ceramic drives the front-end lens to vibrate to complete dirt cleaning, whether the cleaning degree reaches a threshold value is judged, and if the cleaning degree reaches the threshold value, the step S2 is returned; otherwise, the cleaning mode 5 is started.
The calibration is to scan a certain frequency range once to confirm the resonant frequency of the piezoelectric ceramic, so as to provide a reference standard for subsequently setting cleanliness parameters.
The piezoelectric ceramics execute corresponding front-end lens decontamination vibration according to electric signals of different cleaning modes.
Further, the cleaning mode 1, the cleaning mode 2, the cleaning mode 3, and the cleaning mode 4 are currents and frequencies which are correspondingly set according to the dirt levels. Specifically, the cleaning mode 1 is used for cleaning liquid dirt, and the cleaning mode 2 is used for cleaning ice, snow and dirt; cleaning mode 3 is for cleaning mud; cleaning mode 4 is normal cleaning; further, cleaning mode 5 serves as supplemental cleaning to ensure that cleaning reaches a standard threshold.
In summary, the present invention provides a camera with a self-cleaning function and a self-cleaning method thereof, which are used for automatically determining a contamination condition of a lens according to an acquired environment image, and correspondingly obtaining a contamination level, and further setting a preset cleaning parameter by controlling a power chip, so as to implement vibration control of piezoelectric ceramics, thereby completing automatic cleaning and contamination detection of the camera.
While the invention has been described in conjunction with the specific embodiments set forth above, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art in light of the foregoing description. Accordingly, it is intended to embrace all such alternatives, modifications, and variations that fall within the spirit and scope of the appended claims.
Claims (10)
1. A camera with a self-cleaning function comprises a front-end lens, a photosensitive chip, a circuit board electrically connected with the photosensitive chip, and a fixing component for fixing the front-end lens and the photosensitive chip on the optical axis direction of the front-end lens, wherein a shot object is defined to be positioned in front of the optical axis direction; its characterized in that, the camera still includes:
the end part of the piezoelectric ceramic fixed in the fixed component is contacted with the rear side or the peripheral side surface of the front end lens and is electrically connected with the circuit board.
2. The camera according to claim 1, wherein the piezoelectric ceramic is annular, one end portion thereof is connected to a portion near the outer periphery of the rear surface of the front end lens, and the other end portion thereof is electrically connected to the circuit board; the surface roughness of the portion of the front lens in contact with the piezoelectric ceramic is higher than the surface roughness of the portion not in contact with the piezoelectric ceramic.
3. The camera head according to claim 1 or 2, wherein the fixing assembly comprises:
pressing a ring by the camera; and the number of the first and second groups,
a lens holder having a substantially columnar shape, a through hole formed in the center thereof, and a groove formed in the front end surface thereof for accommodating the piezoelectric ceramic;
wherein the pressing ring is fixed on the front end part of the lens support so as to fix the front end lens between the pressing ring and the front end part of the lens support and enable the end part of the piezoelectric ceramics to be abutted against the front end lens.
4. The camera of claim 3, wherein said circuit board is fixed to a rear end portion of said lens holder; the photosensitive chip is fixed on the circuit board.
5. The camera head according to claim 4, further comprising a flexible flat cable connected between the piezoelectric ceramic and the circuit board, wherein the lens holder is further formed with a slot or hole through which the flexible flat cable passes.
6. The camera of claim 5, further comprising a back lens group secured in the through hole of the lens holder, a camera back cover attached to the back end of the lens holder, and a second circuit board secured in the camera back cover and electrically connected to the circuit board.
7. A camera with a self-cleaning function comprises camera components which are connected with each other, wherein each camera component comprises a camera front cover component and a camera rear cover component, wherein a front end lens is fixed on the camera front cover component; it is characterized in that the preparation method is characterized in that,
the camera front cover assembly at least comprises:
the photosensitive chip is used for collecting an environment image, converting the environment image into electronic information and transmitting the electronic information to the control circuit;
the piezoelectric ceramic is used for converting the electric signal sent by the control circuit into mechanical energy so as to further excite the front-end lens to vibrate and realize decontamination;
the control circuit is used for judging whether the front-end lens is dirty or not according to the information output by the photosensitive chip, generating a dirty grade and controlling the piezoelectric ceramics to work according to the dirty grade.
8. The camera head according to claim 7, wherein the piezoelectric ceramic is a circular ring structure, the inner and outer wall surfaces of which are plated with a conductor layer, and the end portions of which are in contact with the front lens.
9. A self-cleaning method of a camera head according to claim 1 or 7, comprising the steps of:
s1: starting a system to perform calibration and calibration;
s2: and (3) detecting dirt: collecting an environment image, judging whether the front-end lens is dirty or not according to the collected environment image, if so, performing step S3, otherwise, performing next group of environment image collection;
s3: setting a cleaning mode: controlling the piezoelectric ceramics to work according to the dirt grade; when the dirt is liquid, starting a cleaning mode 1; when the dirt is ice and snow, starting a cleaning mode 2; when the dirt is mud, starting a cleaning mode 3; otherwise, starting a cleaning mode 4;
s4: cleaning and checking: the piezoelectric ceramic drives the front-end lens to vibrate to complete dirt cleaning, whether the cleaning degree reaches a threshold value is judged, and if the cleaning degree reaches the threshold value, the step S2 is returned; otherwise, the cleaning mode 5 is started.
10. The method of claim 9, wherein the piezoelectric ceramic performs corresponding front end lens desmear vibrations according to electrical signals of different cleaning modes.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010805892.8A CN111917960A (en) | 2020-08-12 | 2020-08-12 | Camera with self-cleaning function and self-cleaning method thereof |
| PCT/CN2020/135597 WO2022032948A1 (en) | 2020-08-12 | 2020-12-11 | Camera having self-cleaning function and self-cleaning method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010805892.8A CN111917960A (en) | 2020-08-12 | 2020-08-12 | Camera with self-cleaning function and self-cleaning method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111917960A true CN111917960A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010805892.8A Pending CN111917960A (en) | 2020-08-12 | 2020-08-12 | Camera with self-cleaning function and self-cleaning method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111917960A (en) |
| WO (1) | WO2022032948A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112493226A (en) * | 2020-11-23 | 2021-03-16 | 王声林 | Wind-force reflection of light drives bird ware with self-cleaning function |
| CN113709374A (en) * | 2021-09-01 | 2021-11-26 | 寒武纪行歌(南京)科技有限公司 | Camera cleaning control method, device, equipment and system |
| CN113953238A (en) * | 2021-11-29 | 2022-01-21 | 苏州宁远精密机械制造有限公司 | Underwater robot and cleaning device and cleaning method for camera assembly of underwater robot |
| WO2022032948A1 (en) * | 2020-08-12 | 2022-02-17 | 惠州市德赛西威智能交通技术研究院有限公司 | Camera having self-cleaning function and self-cleaning method therefor |
| CN114125214A (en) * | 2021-10-11 | 2022-03-01 | 惠州市德赛西威汽车电子股份有限公司 | Heat radiation structure for camera |
| CN115254807A (en) * | 2022-06-27 | 2022-11-01 | 江西联创电子有限公司 | Vibrating defogging and dedusting lens for high-precision imaging and defogging and dedusting method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20150334277A1 (en) * | 2014-05-13 | 2015-11-19 | Mems Drive, Inc. | Mems based dust removal for image sensors |
| CN208758235U (en) * | 2018-12-28 | 2019-04-19 | 威力思通科技（深圳）有限公司 | A kind of novel piezo-electric ceramic sensing device |
| CN109831603B (en) * | 2018-12-29 | 2020-05-26 | 维沃移动通信有限公司 | Mobile terminal |
| CN110404875A (en) * | 2019-06-27 | 2019-11-05 | 惠州市德赛西威智能交通技术研究院有限公司 | A kind of camera ultrasonic cleaning equipment and method |
| CN111479044B (en) * | 2020-04-14 | 2022-04-12 | Oppo广东移动通信有限公司 | Electronic equipment and camera module thereof |
| CN111917960A (en) * | 2020-08-12 | 2020-11-10 | 惠州市德赛西威智能交通技术研究院有限公司 | Camera with self-cleaning function and self-cleaning method thereof |
-
2020
- 2020-08-12 CN CN202010805892.8A patent/CN111917960A/en active Pending
- 2020-12-11 WO PCT/CN2020/135597 patent/WO2022032948A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022032948A1 (en) * | 2020-08-12 | 2022-02-17 | 惠州市德赛西威智能交通技术研究院有限公司 | Camera having self-cleaning function and self-cleaning method therefor |
| CN112493226A (en) * | 2020-11-23 | 2021-03-16 | 王声林 | Wind-force reflection of light drives bird ware with self-cleaning function |
| CN112493226B (en) * | 2020-11-23 | 2022-02-11 | 东营市南方电器有限责任公司 | Wind-force reflection of light drives bird ware with self-cleaning function |
| CN113709374A (en) * | 2021-09-01 | 2021-11-26 | 寒武纪行歌(南京)科技有限公司 | Camera cleaning control method, device, equipment and system |
| CN114125214A (en) * | 2021-10-11 | 2022-03-01 | 惠州市德赛西威汽车电子股份有限公司 | Heat radiation structure for camera |
| CN113953238A (en) * | 2021-11-29 | 2022-01-21 | 苏州宁远精密机械制造有限公司 | Underwater robot and cleaning device and cleaning method for camera assembly of underwater robot |
| CN115254807A (en) * | 2022-06-27 | 2022-11-01 | 江西联创电子有限公司 | Vibrating defogging and dedusting lens for high-precision imaging and defogging and dedusting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022032948A1 (en) | 2022-02-17 |
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