CN214516501U - Camera cleaning device and camera thereof - Google Patents
Camera cleaning device and camera thereof Download PDFInfo
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- CN214516501U CN214516501U CN202022336741.0U CN202022336741U CN214516501U CN 214516501 U CN214516501 U CN 214516501U CN 202022336741 U CN202022336741 U CN 202022336741U CN 214516501 U CN214516501 U CN 214516501U
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Abstract
The utility model provides a camera cleaning device and a camera thereof, which are provided with a light-transmitting wafer with piezoelectric property and a camera module according to the inverse piezoelectric effect principle; the camera module at least comprises a photosensitive element, a photosensitive control circuit connected with the photosensitive element and a power supply control circuit used for controlling the light-transmitting wafer to execute dirt treatment. Through camera cleaning device, can realize the function of the dirty automatically cleaning of camera lens. Effectively reduce the cost and the technical difficulty of clean configuration, accord with market demand more, and improve user experience.
Description
Technical Field
The utility model belongs to the technical field of the on-vehicle camera technique and specifically relates to a camera cleaning device and camera thereof is related to.
Background
With the wide application of the automatic driving technology, more and more environmental perception sensors are applied to automobiles. The camera is as the indispensable component part of visual perception system, and the majority is installed outside the car, and camera lens surface can receive the filth of different degrees under environmental impact. If dirt cannot be cleaned in time, the visual information acquired by the camera cannot feed back the real road condition, and wrong information can cause the automobile to perform wrong execution behaviors, so that traffic accidents are easily caused. The current solutions to this problem are mainly the following two: the automatic water spraying cleaning device has the advantages that the water spraying structure is additionally arranged, high-pressure water is used for washing dirt to enable the dirt to be separated from the surface of the lens, a water path and air path connection are required to be added, anti-freezing liquid and a heating conductor are required to be arranged in the liquid storage tank, the installation space is large, and the cost is high. And ultrasonic vibration is clean, and this scheme adopts piezoceramics and printing opacity lens to constitute the subassembly at present, installs into the camera, and it is clean to conduct vibration energy to lens realization from the vibration source through the converse piezoelectricity conversion, but the subassembly size is great, can increase the overall dimension of camera body, and needs to increase seal structure spare and guarantee waterproofly, and the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model provides a camera cleaning device and camera thereof has piezoelectricity characteristic's printing opacity disk through the setting, and then through the inverse piezoelectric effect principle, realizes the automatically cleaning function of camera.
Specifically, a camera cleaning device, include:
the transparent wafer with piezoelectric property is fixed in front of the front cover of the camera;
and set up the camera module of covering behind the camera, camera module includes at least:
the photosensitive element is used for collecting environmental image information;
the photosensitive control circuit is connected with the photosensitive element and used for judging whether dirt exists on the light-transmitting wafer and judging the category of the dirt according to the shape and size characteristics of the dirt;
and the power supply control circuit is used for receiving a preset grade voltage instruction sent by the photosensitive control circuit and is in electrical signal connection with the light-transmitting wafer.
And the light-transmitting wafer glue is adhered and fixed on the front cover of the camera.
The photosensitive element comprises an image acquisition module and an image information preprocessing module.
The photosensitive control circuit is preferably a PCB photosensitive control circuit board.
The power control circuit is preferably a PCB power control circuit board.
Further, the soil category includes at least water, ice or mud.
As another preferred, the utility model provides an adopt above-mentioned camera laser self-cleaning device's camera still, including the camera protecgulum, and with the back lid that the protecgulum is connected, its characterized in that still includes:
the transparent wafer with piezoelectric property is arranged in front of the front cover of the camera;
and set up the camera module of covering behind the camera, camera module includes at least: the photosensitive element is used for collecting environmental image information;
the photosensitive control circuit is connected with the photosensitive element and used for judging whether dirt exists on the light-transmitting wafer and judging the category of the dirt according to the shape and size characteristics of the dirt;
and the power supply control circuit is used for receiving a preset grade voltage instruction sent by the photosensitive control circuit and is in electrical signal connection with the light-transmitting wafer.
Wherein the front cover further comprises at least: the lens group and the sealing ring are arranged at the joint of the front cover and the rear cover of the camera.
The rear cover further comprises: and the buckle fixing piece is used for fixedly mounting the photosensitive element, the photosensitive control circuit and the power supply control circuit, or a welding fixing point.
Furthermore, the camera is matched with the automobile for use and is fixedly installed at any position on the automobile body.
As another preferred, the power control circuit of the present invention further includes: sending a preset voltage to the light-transmitting wafer to automatically clean the lens; when the number of times of automatic cleaning reaches a threshold value or the duration time of the automatic cleaning reaches the threshold value, a voltage instruction is received, an alarm is given out, and the transparent wafer is judged to be scratched; otherwise, a cleaning completion signal is sent.
Further, the light-transmitting wafer further includes: electric energy is converted into vibration mechanical energy through an inverse piezoelectric effect, and then the vibration excitation is carried out on the dirt so that the dirt is separated from the surface of the wafer to realize self-cleaning.
Preferably, camera cleaning device still be used for with mobile client terminal communication, or control the end communication in on-vehicle to control the end and present camera cleaning result and status information through mobile client terminal or on-vehicle.
In summary, the utility model provides a camera cleaning device and a camera thereof, which are provided with a light-transmitting wafer with piezoelectric property and a camera module according to the inverse piezoelectric effect principle; the camera module at least comprises a photosensitive element, a photosensitive control circuit connected with the photosensitive element and a power supply control circuit used for controlling the light-transmitting wafer to execute dirt treatment. Through camera cleaning device, can realize the function of the dirty automatically cleaning of camera lens. Effectively reduce the cost and the technical difficulty of clean configuration, accord with market demand more, and improve user experience.
Drawings
Fig. 1 is a schematic structural diagram of a camera cleaning device in an embodiment.
Fig. 2 is a schematic diagram of a camera structure using the apparatus shown in fig. 1 according to an embodiment.
Fig. 3 is a flowchart illustrating an image recognition principle of the camera cleaning device according to an embodiment.
Fig. 4 is a flowchart illustrating an operation principle of the camera cleaning device in an embodiment.
Detailed Description
The camera cleaning device and the camera thereof according to the present invention will be described in detail with reference to the following embodiments and accompanying drawings.
Fig. 1 is a schematic structural view of a camera cleaning device according to the present invention, wherein the camera cleaning device includes a front cover 1, a rear cover 2, a sealing ring 3, a light-transmitting wafer 11, a lens assembly 12, a photosensitive element 21, a photosensitive circuit board 22, and a power circuit board 23.
Specifically, the method comprises the following steps: the utility model relates to a camera cleaning device, which comprises a camera front cover and a rear cover fixedly connected with the front cover, wherein the front cover and the rear cover are optionally fixed by screws, and are sealed by sealing rings; the sealing and fixing can also be realized by adopting a laser welding process and a rear cover component, and the method is not limited to the above. Further comprising:
the transparent wafer with piezoelectric property is fixedly bonded with the front cover through glue, so that the waterproof performance is improved while the camera is ensured to realize light transmission, and the ultrasonic vibration self-cleaning function is realized in the subsequent process.
Set up in the camera module of covering behind, camera module includes at least:
the photosensitive element is used for collecting environmental image information and sending a collection result to the photosensitive control circuit;
the photosensitive control Circuit judges whether contamination exists on the light-transmitting wafer or not according to the environment image information, judges the type of the contamination according to the morphological size characteristics of the contamination, and sends a preset grade voltage instruction to the power supply control Circuit, the photosensitive control Circuit can be selected to be a photosensitive Circuit Board Sensor PCBA, PCBA (printed Circuit Board Assembly), namely a PCB blank Board is subjected to SMT loading or a Circuit Board obtained through the whole process of a DIP plug-in.
And the Power supply control circuit sends corresponding voltage to the light-transmitting wafer according to the grade voltage instruction, and a Power supply circuit board (Power PCBA) can be selected as the Power supply control circuit. The photosensitive control circuit is attached to the photosensitive element on one side, so that information transmission is achieved through electric connection, the power supply control circuit is electrically connected to the other side, the photosensitive element, the photosensitive circuit board and the power supply circuit board are fixed on the camera rear cover, and a distance space is reserved between the photosensitive circuit board and the power supply circuit board.
Further, the camera front cover at least further comprises: the lens group and the sealing ring are arranged at the joint of the front cover and the rear cover of the camera. The lens group is at least 2 groups, and the lens groups are sequentially arranged and fixed on the front cover of the camera and positioned in the lens space between the light-transmitting wafer and the rear cover.
Preferably, camera cleaning device use with the car cooperation, fixed mounting is in arbitrary department position on automobile body. For example, the mounting structure can be mounted on the roof of an automobile, or on the side of a front bumper cover, or at any position in the rear of the automobile body, and can also be mounted in the automobile, such as the lower end of a windshield.
As another preferred, the utility model also provides an adopt above-mentioned camera cleaning device's camera (as shown in fig. 2), including camera body subassembly, at least including the camera protecgulum, and with protecgulum fixed connection's back lid, the protecgulum still includes at least: the lens group and the sealing ring are arranged at the joint of the front cover and the rear cover of the camera. The rear cover further comprises: and the buckle fixing piece is used for fixedly mounting the photosensitive element, the photosensitive control circuit and the power supply control circuit, or a welding fixing point.
Preferably, the image recognition principle flow chart (as shown in fig. 3-4) of the camera cleaning device and the camera thereof includes:
the image acquisition module is used for acquiring environment image information and sending an acquisition result to the image processing module;
the image processing module is used for judging whether dirt exists on the light-transmitting wafer according to the environment image information, judging the category of the dirt according to the shape and size characteristics of the dirt and sending a preset grade voltage instruction to the control module;
and the control module sends corresponding voltage to the light-transmitting wafer according to the grade voltage instruction.
Wherein the environment image information is a video.
Preferably, the image processing module further includes:
analyzing the video, and judging the information which is still in the moving picture as dirty;
acquiring the morphological and dimensional characteristics of the dirt, and judging the type of the dirt;
and setting a corresponding voltage grade according to the dirt type.
Wherein the stain types include at least: water, ice or mud.
Preferably, the control module further comprises:
sending a preset voltage to the light-transmitting wafer to automatically clean the lens;
when the number of times of automatic cleaning reaches a threshold value or the duration time of the automatic cleaning reaches the threshold value, a voltage instruction is received, an alarm is given out, and the transparent wafer is judged to be scratched; otherwise, a cleaning completion signal is sent.
Further, the light-transmitting wafer further includes: electric energy is converted into vibration mechanical energy through an inverse piezoelectric effect, and then the vibration excitation is carried out on the dirt so that the dirt is separated from the surface of the wafer to realize self-cleaning. Wherein the inverse piezoelectric effect is: when an electric field is applied in the polarization direction of the dielectrics, the dielectrics also deform, and after the electric field is removed, the deformation of the dielectrics disappears, thereby realizing the conversion of electric energy into vibrating mechanical energy.
Camera cleaning device still be used for communicating with mobile client terminal, or control the end communication in on-vehicle to control the end and present camera cleaning result and status information through mobile client terminal or on-vehicle.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A camera cleaning device, comprising:
the transparent wafer with piezoelectric property is fixed in front of the front cover of the camera;
and set up the camera module of covering behind the camera, camera module includes at least:
the photosensitive element is used for collecting environmental image information;
the photosensitive control circuit is connected with the photosensitive element and used for judging whether dirt exists on the light-transmitting wafer and judging the category of the dirt according to the shape and size characteristics of the dirt;
and the power supply control circuit is used for receiving a preset grade voltage instruction sent by the photosensitive control circuit and is in electrical signal connection with the light-transmitting wafer.
2. The apparatus of claim 1 wherein said light transmissive wafer is adhesively secured to said camera head bezel.
3. The apparatus of claim 1, wherein the photosensitive element comprises an image acquisition module and an image information preprocessing module.
4. The apparatus of claim 1, wherein the photosensitive control circuit is a PCB photosensitive control circuit board.
5. The apparatus of claim 1, wherein the power control circuit is a PCB power control circuit board.
6. The apparatus of claim 1, wherein the soil category includes at least water, ice, or mud.
7. The camera head of the camera head laser self-cleaning device adopted by any one of claims 1 to 6, comprising a camera head front cover and a rear cover connected with the front cover, and further comprising:
the transparent wafer with piezoelectric property is arranged in front of the front cover of the camera;
and set up the camera module of covering behind the camera, camera module includes at least: the photosensitive element is used for collecting environmental image information;
the photosensitive control circuit is connected with the photosensitive element and used for judging whether dirt exists on the light-transmitting wafer and judging the category of the dirt according to the shape and size characteristics of the dirt;
and the power supply control circuit is used for receiving a preset grade voltage instruction sent by the photosensitive control circuit and is in electrical signal connection with the light-transmitting wafer.
8. The camera of claim 7, wherein the front cover further comprises at least: the lens group and the sealing ring are arranged at the joint of the front cover and the rear cover of the camera.
9. The camera of claim 7, wherein the back cover further comprises at least:
and the buckle fixing piece is used for fixedly mounting the photosensitive element, the photosensitive control circuit and the power supply control circuit, or a welding fixing point.
10. The camera of claim 7, wherein the camera is adapted to be used with a vehicle and is fixedly mounted at any position on the vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022336741.0U CN214516501U (en) | 2020-10-20 | 2020-10-20 | Camera cleaning device and camera thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022336741.0U CN214516501U (en) | 2020-10-20 | 2020-10-20 | Camera cleaning device and camera thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214516501U true CN214516501U (en) | 2021-10-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022336741.0U Active CN214516501U (en) | 2020-10-20 | 2020-10-20 | Camera cleaning device and camera thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214516501U (en) |
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2020
- 2020-10-20 CN CN202022336741.0U patent/CN214516501U/en active Active
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