CN208337720U - Vehicle-mounted camera Automatic zoom lens focusing device - Google Patents
Vehicle-mounted camera Automatic zoom lens focusing device Download PDFInfo
- Publication number
- CN208337720U CN208337720U CN201820897459.XU CN201820897459U CN208337720U CN 208337720 U CN208337720 U CN 208337720U CN 201820897459 U CN201820897459 U CN 201820897459U CN 208337720 U CN208337720 U CN 208337720U
- Authority
- CN
- China
- Prior art keywords
- focusing
- motor
- focus
- lens
- zoom
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lens Barrels (AREA)
- Studio Devices (AREA)
Abstract
The utility model discloses a kind of vehicle-mounted camera Automatic zoom lens focusing devices, including optical imaging lens group, digital CMOS sensor, auto-focusing unit, electric-motor drive unit, zoom motor and focus motor, optical imaging lens group includes zoom lens and amasthenic lens, light is imaged through optical imaging lens group in digital CMOS sensor, picture signal is passed to auto-focusing unit by digital CMOS sensor, set whether detection circuit sense image signal shoots in pinpointed focus state and be messaging in electric-motor drive unit in auto-focusing unit, signal driving focal length motor and focus motor drive the zoom lens of optical imaging lens group and amasthenic lens to be adjusted to electric-motor drive unit respectively based on the received, until digital CMOS sensor obtains high-definition image.The vehicle-mounted camera Automatic zoom lens focusing device has structure simple, and performance is stablized, and solves the limitation of traditional tight shot, improves automobile driving safe, optimizes road conditions warning function.
Description
Technical field
The utility model relates to a kind of camera Automatic zoom lens focusing devices more particularly to a kind of vehicle-mounted camera autozoom to fill
It sets.
Background technique
ADAS (advanced driving assistance system Advanced Driver Assistant System, abbreviation ADAS) system solution
Certainly scheme includes camera solution, Laser/Radar radar resolution, sensor fusion.Initial stage due to Radar Technology at
Ripe and do not influenced by weather condition, Laser/Radar radar resolution is the market mainstream.But with ASIC (specific integrated circuit)
Development and image processing algorithm raising, simultaneously because Radar Technology accuracy rate in terms of distinguishing barrier metallization is higher,
But it is helpless in terms of distinguishing non-metal barriers such as pedestrian, and can not accurate recognition side sail the vehicle come, can not distinguish
Other lane, fragment or road pit slot.And the visual processes technology of camera can distinguish mark on road, pedestrian well
Information can also calculate the movement track of pedestrian and vehicle by algorithm, compare that Radar Technology cost is lower, and function is more complete
Face, accuracy are also higher.Technology based on camera imaging is received by mainstream vendor gradually.And night vision function is automobile camera shooting
One of the core technology of head.According to statistics, although driving at night only accounts for a quarter, the accident of generation in entire highway communication
Half is accounted for, and accident caused by night bad visibility accounts for 70%.When driving, it from discovery front obstacle, arrives
The reaction time for making brake is about 1 second, if automobile is from 120km/h to the braking distance stopped completely at 50 meters
More than, then driver is in 120km/h speed, just it has to be observed that the visual field other than 80 meters of front, at least emergency processing in 3 seconds
Time.But if it is driving at night, effective visual range of automobile dipped headlight is 30-50 meter, high beam it is effective visually
Distance is 60-80 meters, does not have the emergency reaction time, so vehicle night vision is safe, it is necessary to give warning in advance to road conditions.Traditional vehicle
Carrying photographic device is to determine focal length system, and structure is relatively easy, and performance is stablized, but also has its inherent defect, as visual field is fixed
Problem cannot obtain the information of clearly distant place when focal length is too small, can not get big global model when focal length is excessive again
The information enclosed.The demand of road conditions warning function in automobile driving safe cannot be fully met.
Summary of the invention
In order to overcome drawbacks described above, the utility model provides a kind of vehicle-mounted camera Automatic zoom lens focusing device, solves fixed-focus
The limitation of camera lens improves automobile driving safe, optimizes road conditions warning function.
The utility model is to solve technical solution used by its technical problem: a kind of vehicle-mounted camera autozoom
Device, including optical imaging lens group, digital CMOS sensor, auto-focusing unit, electric-motor drive unit, zoom motor and
Focus motor, the optical imaging lens group include zoom lens and amasthenic lens, and light exists through the optical imaging lens group
Picture signal is passed to the auto-focusing unit, institute by the digital CMOS sensor imaging, the digital CMOS sensor
It states and sets whether detection circuit sensing described image signal shoots and be messaging in described in pinpointed focus state in auto-focusing unit
Electric-motor drive unit, signal drives the zoom motor and focus motor to drive respectively to the electric-motor drive unit based on the received
The zoom lens and amasthenic lens of the optical imaging lens group are adjusted, until the digital CMOS sensor obtains high definition
Image.
Focusing evaluation module is set in the auto-focusing unit as a further improvement of the utility model, which comments
The moving distance changing rule of the amasthenic lens and zoom lens is defined as focus criteria function by valence module, described automatic right
Burnt unit sends the value of the focus criteria function to the electric-motor drive unit, and the electric-motor drive unit drives the zoom
Motor drives the amasthenic lens to be adjusted, until the digital CMOS sensor obtains high-definition image.
The focus criteria function of the focusing evaluation module is equipped with threshold value as a further improvement of the utility model, when
When the focus criteria function is more than the threshold value, the electric-motor drive unit drives the zoom motor and focus motor difference
The zoom lens and amasthenic lens for driving the optical imaging lens group are adjusted, until the value of the focus criteria function exists
In the threshold value.
The beneficial effects of the utility model are: the vehicle-mounted camera Automatic zoom lens focusing device is by the way that two groups of imaging lens are arranged
Zoom lens and amasthenic lens, and communication is imaged by digital CMOS sensor and gives auto-focusing unit, auto-focusing unit
Monitor image quality and amasthenic lens and zoom lens in real time, once detect that amasthenic lens and zoom lens do not operate at
Best focus, auto-focusing unit communication electric-motor drive unit make zoom motor and focus motor drive optical imagery respectively
The zoom lens and amasthenic lens of lens group are adjusted, until digital CMOS sensor obtains high-definition image.The vehicle-mounted pick-up
Head Automatic zoom lens focusing device has structure simple, and performance is stablized, and solves the limitation of traditional tight shot, improves automobile
Driving safety optimizes road conditions warning function.
Detailed description of the invention
Fig. 1 is the utility model structure structural block diagram.
In conjunction with attached drawing, make the following instructions:
1 --- optical imaging lens group；2 --- digital CMOS sensor；
3 --- auto-focusing unit；4 --- electric-motor drive unit；
5 --- zoom motor；6 --- focus motor.
Specific embodiment
Below in conjunction with attached drawing, elaborate to a preferred embodiment of the utility model.But the guarantor of the utility model
Shield range is not limited to following embodiments, i.e., in every case with simple made by present utility model application the scope of the patents and description
Equivalent changes and modifications all still belong within the utility model patent covering scope.
It refering to fig. 1, is a kind of vehicle-mounted camera Automatic zoom lens focusing device described in the utility model, including optical imaging lens
Group 1, digital CMOS sensor 2, auto-focusing unit 3, electric-motor drive unit 4, zoom motor 5 and focus motor 6, the optics
Imaging lens group 1 includes zoom lens and amasthenic lens, and light is sensed through the optical imaging lens group 1 in the digital CMOS
Device 2 is imaged, and picture signal is passed to the auto-focusing unit 3, the auto-focusing list by the digital CMOS sensor 2
Set whether detection circuit sensing described image signal shoots in pinpointed focus state and be messaging in the electric-motor drive unit in member 3
4, signal drives the zoom motor 5 and focus motor 6 to drive the optics respectively to the electric-motor drive unit based on the received
The zoom lens and amasthenic lens of imaging lens group are adjusted, until the digital CMOS sensor 2 obtains high-definition image.
Wherein, set focusing evaluation module in the auto-focusing unit, the focusing evaluation module by the amasthenic lens with
The moving distance changing rule of zoom lens is defined as focus criteria function, and the auto-focusing unit is by the focus criteria function
Value send the electric-motor drive unit 4 to, the electric-motor drive unit drives the zoom motor 5 to drive the focus lamp
Head is adjusted, until the digital CMOS sensor 2 obtains high-definition image.Letter is evaluated in the focusing of the focusing evaluation module
Number is equipped with threshold value, and when the focus criteria function is more than the threshold value, the electric-motor drive unit 4 drives the zoom electricity
Machine 5 and focus motor 6 drive the zoom lens of the optical imaging lens group and amasthenic lens to be adjusted respectively, until described
The value of focus criteria function is in the threshold value.
When system auto-focusing terminate and be imaged than it is more visible when, if changing focal length observes farther or closer scape
When object, at this moment just need to focus again.Focus process in fact quickly, but for observer, has such a process and schemes
As having from clearly thickening, the continuity of image can be made to be destroyed in this way, visually have a discomfort, the present invention is by focus lamp
The moving distance changing rule of head and zoom lens is defined as focus criteria function, and focusing evaluation module calculates focusing evaluation in real time
The value of function and communication are to electric-motor drive unit, and electric-motor drive unit is according to the focusing of the focus criteria function or image that receive
State focuses rapidly to image, will not damage to the clarity of image.Assuming that system, which has been focused, to be terminated, and again
Zoom operation is carried out, the moving distance of zoom lens can be directed at this time, the position of corresponding mobile amasthenic lens makes system one
Directly it is in relatively better focusing state.In addition to tracking zoom, indemnifying measure can also be done, i.e., calculates focus criteria function at random
And compare its size with threshold value, once its value has been more than threshold value, then should in certain section comparative evaluation function again
Value, to ensure that system is in focusing state always.
It can be seen that the vehicle-mounted camera Automatic zoom lens focusing device passes through two groups of imaging lens, that is, zoom lens of setting and focusing
Camera lens, and communication is imaged by digital CMOS sensor and gives auto-focusing unit, auto-focusing unit monitors in real time into image quality
Amount and amasthenic lens and zoom lens, once detect that amasthenic lens and zoom lens do not operate at best focus,
Auto-focusing unit communication electric-motor drive unit makes zoom motor and focus motor drive the zoom of optical imaging lens group respectively
Camera lens and amasthenic lens are adjusted, until digital CMOS sensor obtains high-definition image.Vehicle-mounted camera autozoom dress
, performance stabilization simple with structure is set, and solves the limitation of traditional tight shot, improves automobile driving safe, it is excellent
Road conditions warning function is changed.
Claims (3)
1. a kind of vehicle-mounted camera Automatic zoom lens focusing device, it is characterised in that: passed including optical imaging lens group (1), digital CMOS
Sensor (2), auto-focusing unit (3), electric-motor drive unit (4), zoom motor (5) and focus motor (6), the optical imagery
Lens group (1) includes zoom lens and amasthenic lens, and light is sensed through the optical imaging lens group (1) in the digital CMOS
Device (2) imaging, picture signal is passed to the auto-focusing unit (3) by the digital CMOS sensor (2), described automatic right
Set whether detection circuit sensing described image signal shoots in pinpointed focus state and be messaging in the motor drive in burnt unit (3)
Moving cell (4), signal drives the zoom motor (5) and focus motor (6) respectively to the electric-motor drive unit based on the received
The zoom lens and amasthenic lens for driving the optical imaging lens group are adjusted, until the digital CMOS sensor (2)
Obtain high-definition image.
2. vehicle-mounted camera Automatic zoom lens focusing device according to claim 1, it is characterised in that: in the auto-focusing unit
If focusing evaluation module, which is defined as the moving distance changing rule of the amasthenic lens and zoom lens
Focus criteria function, the auto-focusing unit send the value of the focus criteria function to the electric-motor drive unit (4), institute
Stating electric-motor drive unit drives the zoom motor (5) that the amasthenic lens is driven to be adjusted, until the digital CMOS passes
Sensor (2) obtains high-definition image.
3. vehicle-mounted camera Automatic zoom lens focusing device according to claim 2, it is characterised in that: the focusing evaluation module
Focus criteria function is equipped with threshold value, when the focus criteria function is more than the threshold value, electric-motor drive unit (4) driving
The zoom motor (5) and focus motor (6) drive respectively the optical imaging lens group zoom lens and amasthenic lens into
Row adjustment, until the value of the focus criteria function is in the threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897459.XU CN208337720U (en) | 2018-06-11 | 2018-06-11 | Vehicle-mounted camera Automatic zoom lens focusing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820897459.XU CN208337720U (en) | 2018-06-11 | 2018-06-11 | Vehicle-mounted camera Automatic zoom lens focusing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208337720U true CN208337720U (en) | 2019-01-04 |
Family
ID=64770137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820897459.XU Active CN208337720U (en) | 2018-06-11 | 2018-06-11 | Vehicle-mounted camera Automatic zoom lens focusing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208337720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111491093A (en) * | 2019-01-26 | 2020-08-04 | 初速度（苏州）科技有限公司 | Method and device for adjusting field angle of camera |
-
2018
- 2018-06-11 CN CN201820897459.XU patent/CN208337720U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111491093A (en) * | 2019-01-26 | 2020-08-04 | 初速度（苏州）科技有限公司 | Method and device for adjusting field angle of camera |
| CN111491093B (en) * | 2019-01-26 | 2021-12-31 | 魔门塔(苏州)科技有限公司 | Method and device for adjusting field angle of camera |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9443154B2 (en) | Fusion of far infrared and visible images in enhanced obstacle detection in automotive applications | |
| CN103287372B (en) | A kind of automobile collision preventing method for security protection based on image procossing | |
| EP2463806A1 (en) | Vehicle detection device and vehicle detection method | |
| JP5506745B2 (en) | Image acquisition unit, method and associated control unit {IMAGEACQUISITIONUNIT, ACQUISITIONMETHODANDASSOCIATEDCONTROLLUNT} | |
| JP6807543B2 (en) | Imaging device | |
| US10390004B2 (en) | Stereo gated imaging system and method | |
| JP2014013449A (en) | On-vehicle device | |
| JP5686281B2 (en) | Three-dimensional object identification device, and mobile object control device and information providing device provided with the same | |
| CN105575128B (en) | Motor vehicle far-reaching lamp peccancy detection and capturing system | |
| CN111727437A (en) | Multispectral system providing pre-crash warning | |
| JP2015139128A (en) | Vehicular periphery monitoring device | |
| JP2011150686A (en) | Object identifying apparatus, moving body control apparatus equipped with the same, and information providing apparatus | |
| CN110816527A (en) | Vehicle-mounted night vision safety method and system | |
| CN104036640A (en) | Panoramic image acquisition device and panoramic image acquisition method | |
| CN107316463A (en) | A kind of method and apparatus of vehicle monitoring | |
| CN102923000B (en) | A kind of automobile based on binocular vision target detect is initiatively moveed backward speed-limiting control method | |
| JP2011150687A (en) | Three-dimensional object identifying apparatus, moving body control apparatus equipped with the same, and information providing apparatus | |
| JP2009234344A (en) | Adjustment device for photographing means and object detection device | |
| US11176397B2 (en) | Object recognition device | |
| CN208337720U (en) | Vehicle-mounted camera Automatic zoom lens focusing device | |
| JP2019146012A (en) | Imaging apparatus | |
| CN112729123A (en) | Distance measuring system and method based on machine vision | |
| KR101706682B1 (en) | Image providing apparatus for curved road | |
| KR20100063372A (en) | Method for recognizing driving lane using multiple cameras | |
| JP3395634B2 (en) | Optical flow type backward information detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |