CN110404875A - A kind of camera ultrasonic cleaning equipment and method - Google Patents
A kind of camera ultrasonic cleaning equipment and method Download PDFInfo
- Publication number
- CN110404875A CN110404875A CN201910567842.8A CN201910567842A CN110404875A CN 110404875 A CN110404875 A CN 110404875A CN 201910567842 A CN201910567842 A CN 201910567842A CN 110404875 A CN110404875 A CN 110404875A
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- CN
- China
- Prior art keywords
- cleaning
- module
- camera
- ultrasonic
- cleaning device
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Classifications
-
- 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
- B08B3/02—Cleaning by the force of jets or sprays
-
- 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
- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2203/00—Details of cleaning machines or methods involving the use or presence of liquid or steam
- B08B2203/02—Details of machines or methods for cleaning by the force of jets or sprays
- B08B2203/0217—Use of a detergent in high pressure cleaners; arrangements for supplying the same
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
Abstract
The invention discloses a kind of camera ultrasonic cleaning equipments, including camera module interconnected, system unit and cleaning device, wherein the cleaning device includes cleaning device control unit, ultrasonic transducer, cleaning medium module；The system unit is for controlling whether the cleaning device control unit needs to start；The cleaning device control unit is built-in for driving the ultrasonic drive circuit of the ultrasonic transducer；Cleaning medium and control circuit built in the cleaning medium module, the cleaning device control unit is also used to control the control circuit in the cleaning medium module, and then controls the switch and dosage of cleaning medium.It can be cleaned automatically using the technical solution, is easy for installation, cleaning dynamics and more efficient.
Description
Technical field
The present invention relates to camera field, in particular to a kind of camera ultrasonic cleaning equipment and method.
Background technique
With the development of automobile industry, eyes of the camera as vehicle, in safe driving field of auxiliary, it appears more next
It is more important.More and more automobiles are equipped with vehicle-mounted camera, and wherein backup camera substantially has become standard configuration, and
12 or more cameras are even equipped on the vehicle of some high-end automatic Pilot auxiliary.However, we are in normal use
In the process, the various application scenarios for being unfavorable for camera and showing: muddy road conditions, rain road conditions, dust road conditions can be encountered,
Sleet road conditions, frost environment etc., so that cam lens inevitably will appear dirty, block equal shapes in these scenes
Condition, this situation will cause image and show user experience and driving safety bad and that influence client, if with conventional cleaning
Mode all can not be removed effectively such as wind or washing self-cleaning device.
At present to this solution to the problem:
1, it is cleaned after stopping.Most conventional methods, but get on the bus and camera will be cleaned every time, driver is come
It says very inconvenient；
2, increase rain brush at camera lens, increase a micromotor rotary part at camera lens, be equipped in rotary part
Windscreen wiper device controls the camera lens position that wiper cleans camera by the rotation of control motor.Application No. is
CN107745697A patent discloses a kind of automatic cleaning apparatus, including detergent, control unit, and camera front end increases one
A Wiper system, work are control rain brush directly to lens cleaning, and this in the way of motor control, service life is low, and
And use is of long duration, rain brush also be easy to cause damage, and cleaning capacity is limited.
3, it application No. is a kind of camera parts ultrasonic cleaning equipment of the patent disclosure of CN109290281A, needs to take the photograph
As head part is placed in net slot, using lifting motor, camera net slot is put into cleaning case and is cleaned, is then blown with air blower
It is dry, in such a way that upgrading motor is this, the operation in the use process of camera is increased, can be only applied to camera production
In the process, it is inconvenient to install in actual use, is not suitable for.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of camera ultrasonic cleaning equipment and method, can be automatically clear
It washes, is easy for installation, cleaning dynamics and more efficient.
A kind of camera ultrasonic cleaning equipment provided in an embodiment of the present invention, including camera module interconnected,
System unit and cleaning device, wherein the cleaning device includes cleaning device control unit, ultrasonic transducer, cleaning Jie
Matter module；The system unit is for controlling whether the cleaning device control unit needs to start；The cleaning device control
Unit is built-in for driving the ultrasonic drive circuit of the ultrasonic transducer；Cleaning medium built in the cleaning medium module
And control circuit, the cleaning device control unit is also used to control the control circuit in the cleaning medium module, and then controls
The switch and dosage of cleaning medium processed.
Optionally, the cleaning device control unit include MCU module, power module, digital power amplifier high drive module,
Matched filtering module and pwm signal low-voltage driving module, the MCU module is for controlling the ultrasonic transducer, including institute
It states MCU module and is sent out pwm signal, the pwm signal is input to the digital power amplifier by pwm signal low-voltage driving module
High drive module, high-voltage driven signal control the ultrasonic transducer work by the matched filtering module.
Optionally, the MCU module is also used to control the control circuit of the cleaning medium module.
Optionally, the cleaning device control unit further includes transducer monitor circuit and DAC conversion feedback circuit, described
When ultrasonic transducer works, the signal of output is fed back to the transducer monitor circuit, passes through the DAC conversion feedback to institute
State MCU module.
Optionally, the cleaning medium module further includes valve, cleaning medium the storage box and nozzle.
Optionally, the nozzle design is circularized cooperates with lens shape, and the nozzle is contacted with lens edge.
Optionally, the ultrasonic transducer uses piezoelectric type PZT (piezoelectric transducer), the ultrasonic transducer and camera lens side
Edge is contacted and is integrally connected.
In addition, the present invention also provides a kind of camera method for suppersonic cleaning, comprising:
For camera module received image signal to system unit, whether system unit analyzes image data abnormal, according to point
Analysis result judges whether to need to clean cam lens；
If necessary to clean cam lens then system unit to the MCU module of cleaning device send cleaning instruction；
MCU module sends cleaning instruction to cleaning medium module, and control valve sprays cleaning medium；
MCU module issues PMW signal, control ultrasonic transducer vibration cleaning.
Optionally, after the completion of cleaning, whether system unit analyzes image data again normal, terminate if normal this into
Otherwise journey is cleaned again, until recycling predetermined wash number, after recycling predetermined wash number, system unit analyzes image
Data or exception are then judged as that image abnormity other problems cause.
Therefore using the present embodiment technical solution, due to combining ultrasonic wave automatic cleaning technology, camera and cleaning
Device separation, it is easy for installation, make cleaning dynamics and more efficient.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is a kind of camera ultrasonic cleaning equipment structural schematic diagram provided by the invention；
Fig. 2 is a kind of schematic diagram of internal structure of camera ultrasonic cleaning equipment modules provided by the invention；
Fig. 3 is a kind of nozzle arrangements schematic diagram provided by the invention；
Fig. 4 is a kind of control method flow chart for cleaning pick-up lens provided by the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment:
The present embodiment provides a kind of camera ultrasonic cleaning equipments, as shown in Figure 1, including camera mould interconnected
Block, system unit and cleaning device, wherein the cleaning device includes cleaning device control unit, ultrasonic transducer, cleaning
Medium module；The system unit is for controlling whether the cleaning device control unit needs to start cleaning device；It is described clear
Clean device control units is built-in for driving the ultrasonic drive circuit of the ultrasonic transducer；In the cleaning medium module
Cleaning medium and control circuit are set, the cleaning device control unit is also used to control the electricity of the control in the cleaning medium module
Road, and then control the switch and dosage of cleaning medium.According to practical application request, the cleaning medium can be changed to water, have
Machine solution etc..
It can be, but not limited to, as shown in Fig. 2, the cleaning device control unit includes MCU module, power module, number
Power amplifier high drive module, matched filtering module and pwm signal low-voltage driving module, transducer monitor circuit and DAC conversion are anti-
Current feed circuit.
The camera module and system unit are similar with common camera system, the cleaning device control unit
MCU module, while the control circuit of output pwm signal control ultrasonic transducer and cleaning medium inside modules.Wherein, described
MCU module control ultrasonic transducer process includes that the MCU module is sent out pwm signal, and the pwm signal passes through PWM
Signal low-voltage driving module is input to the digital power amplifier high drive module, at this time voltage by power module boost conversion and
Come, generally higher than 100V, high-voltage driven signal controls the ultrasound by the design of isolation by the matched filtering module
Wave transducer work.When the ultrasonic transducer works, the signal of output is fed back to the transducer monitor circuit, passes through institute
DAC conversion feedback is stated to the MCU module, preferably controls the frequency of pwm signal.
The cleaning medium module includes control circuit, valve, cleaning medium the storage box and nozzle.As shown in figure 3, described
Nozzle design is circularized to be cooperated with lens shape, and the nozzle contacts with lens edge, when work, while being cleaned to centre injection
Medium, so that medium is contacted and cleared up with the pollutant of camera lens rapidly.The ultrasonic transducer uses piezoelectric type piezoelectric energy-conversion
Device, the ultrasonic transducer are contacted and are integrally connected with lens edge, the interference in order to avoid ultrasonic wave to human ear, frequency
It is arranged to 20Khz or more.
The present invention also provides a kind of camera method for suppersonic cleaning, as shown in Figure 4, comprising:
For camera module received image signal to system unit, whether system unit analyzes image data abnormal, according to point
Analysis result judges whether to need to clean cam lens；
If necessary to clean cam lens then system unit to the MCU module of cleaning device send cleaning instruction；
MCU module sends cleaning instruction to cleaning medium module, and control valve sprays cleaning medium；
MCU module issues PMW signal, control ultrasonic transducer vibration cleaning.
It can be, but not limited to, after the completion of cleaning, whether system unit analyzes image data again normal, ties if normal
This process of beam, is otherwise cleaned again, until predetermined wash number is recycled, after recycling predetermined wash number, system unit point
Image data or exception are analysed, then is judged as that image abnormity other problems cause, n times can adjust according to the actual situation in Fig. 4, write from memory
Recognize setting 3 times, avoids system repeated washing camera lens.
As it can be seen that camera is separated with cleaning device in conjunction with ultrasonic wave automatic cleaning technology, and it is easy for installation, make cleaning dynamics
With it is more efficient.
Embodiments described above does not constitute the restriction to the technical solution protection scope.It is any in above-mentioned implementation
Made modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution within the spirit and principle of mode
Within enclosing.
Claims (9)
1. a kind of camera ultrasonic cleaning equipment, which is characterized in that including camera module interconnected, system unit and
Cleaning device, wherein the cleaning device includes cleaning device control unit, ultrasonic transducer, cleaning medium module；It is described
System unit is for controlling whether the cleaning device control unit needs to start；It is used for built in the cleaning device control unit
Drive the ultrasonic drive circuit of the ultrasonic transducer；Cleaning medium and control circuit built in the cleaning medium module,
The cleaning device control unit is also used to control the control circuit in the cleaning medium module, and then controls cleaning medium
Switch and dosage.
2. a kind of camera ultrasonic cleaning equipment as described in claim 1, which is characterized in that the cleaning device control is single
Member includes MCU module, power module, digital power amplifier high drive module, matched filtering module and pwm signal low-voltage driving mould
Block, the MCU module is used to control the ultrasonic transducer, including the MCU module is sent out pwm signal, the PWM
Signal is input to the digital power amplifier high drive module by pwm signal low-voltage driving module, and high-voltage driven signal passes through institute
It states matched filtering module and controls the ultrasonic transducer work.
3. a kind of camera ultrasonic cleaning equipment as claimed in claim 2, which is characterized in that the MCU module is also used to
Control the control circuit of the cleaning medium module.
4. a kind of camera ultrasonic cleaning equipment as claimed in claim 2, which is characterized in that the cleaning device control is single
Member further includes transducer monitor circuit and DAC conversion feedback circuit, when the ultrasonic transducer works, the signal feedback of output
To the transducer monitor circuit, pass through the DAC conversion feedback to the MCU module.
5. a kind of camera ultrasonic cleaning equipment as described in any in Claims 1-4, which is characterized in that the cleaning
Medium module further includes valve, cleaning medium the storage box and nozzle.
6. a kind of camera ultrasonic cleaning equipment as claimed in claim 5, which is characterized in that the nozzle design circularizes
Cooperate with lens shape, the nozzle is contacted with lens edge.
7. a kind of camera ultrasonic cleaning equipment as claimed in claim 6, which is characterized in that the ultrasonic transducer is adopted
With piezoelectric type PZT (piezoelectric transducer), the ultrasonic transducer is contacted and is integrally connected with lens edge.
8. a kind of camera method for suppersonic cleaning characterized by comprising
For camera module received image signal to system unit, whether system unit analysis image data is abnormal, is tied according to analysis
Fruit judges whether to need to clean cam lens；
If necessary to clean cam lens then system unit to the MCU module of cleaning device send cleaning instruction；
MCU module sends cleaning instruction to cleaning medium module, and control valve sprays cleaning medium；
MCU module issues PMW signal, control ultrasonic transducer vibration cleaning.
9. a kind of camera method for suppersonic cleaning as claimed in claim 8, which is characterized in that after the completion of cleaning, system list
Whether analysis image data is normal again for member, terminates this process if normal, is otherwise cleaned again, until circulation is predetermined
Wash number, after recycling predetermined wash number, system unit analyzes image data or exception, then be judged as image abnormity other
Problem causes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567842.8A CN110404875A (en) | 2019-06-27 | 2019-06-27 | A kind of camera ultrasonic cleaning equipment and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567842.8A CN110404875A (en) | 2019-06-27 | 2019-06-27 | A kind of camera ultrasonic cleaning equipment and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110404875A true CN110404875A (en) | 2019-11-05 |
Family
ID=68358383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910567842.8A Pending CN110404875A (en) | 2019-06-27 | 2019-06-27 | A kind of camera ultrasonic cleaning equipment and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110404875A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112351168A (en) * | 2020-10-21 | 2021-02-09 | 惠州市德赛西威智能交通技术研究院有限公司 | Camera laser self-cleaning device and system |
| CN112739583A (en) * | 2020-02-17 | 2021-04-30 | 华为技术有限公司 | Window cleaning method, window cleaning device and vehicle |
| 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 |
| CN115121522A (en) * | 2021-03-25 | 2022-09-30 | 深圳银星智能集团股份有限公司 | Cleaning method, device and maintenance station |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112739583A (en) * | 2020-02-17 | 2021-04-30 | 华为技术有限公司 | Window cleaning method, window cleaning device and vehicle |
| CN112739583B (en) * | 2020-02-17 | 2022-04-08 | 华为技术有限公司 | Window cleaning method, window cleaning device and vehicle |
| 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 |
| CN112351168A (en) * | 2020-10-21 | 2021-02-09 | 惠州市德赛西威智能交通技术研究院有限公司 | Camera laser self-cleaning device and system |
| CN115121522A (en) * | 2021-03-25 | 2022-09-30 | 深圳银星智能集团股份有限公司 | Cleaning method, device and maintenance station |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20191105 |