CN110266944A - A kind of calibration quick focusing method of remote optical monitoring system - Google Patents
A kind of calibration quick focusing method of remote optical monitoring system Download PDFInfo
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- CN110266944A CN110266944A CN201910542948.2A CN201910542948A CN110266944A CN 110266944 A CN110266944 A CN 110266944A CN 201910542948 A CN201910542948 A CN 201910542948A CN 110266944 A CN110266944 A CN 110266944A
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
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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
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/671—Focus control based on electronic image sensor signals in combination with active ranging signals, e.g. using light or sound signals emitted toward objects
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- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
A kind of calibration quick focusing method of remote optical monitoring system belongs to monitoring field；Prior art manual control lens zoom, focusing are too cumbersome, and system automation performance is not high；Including setting up an optoelectronic device, it is adjusted to suitable photoelectricity focal length and focusing, obtains data, all distance calibrations are completed, and the mapping table of a set of different distance and teaching aid focusing is established by manually demarcating for different distance target；The positional distance for obtaining target location focuses mapping table by distance, focal length and calculates suitable focal length focus data according to positional distance data；Focal length and focus data, it is converted into the control command to photoelectricity, guide the focal length of photo-electric control camera lens and focuses stroke, that is, is realized fast and accurately to photoelectricity zoom focus control；It realizes fast automatic zoom and focusing, can satisfy wide area monitoring field and apply to system intelligent and the higher performance requirement of automation aspect.
Description
Technical field
The invention belongs to monitoring field more particularly to a kind of calibration quick focusing methods of remote optical monitoring system.
Background technique
Currently, the visible light optical camera lens of 750mm focal length or bigger focal length is mostly used for wide area video monitoring field,
For this camera lens after big stride zoom, needing to adjust to focus can just make the clarity of imaging reach requirement, but quick
During zoom and focusing task, there are problems that it is some be not suitable with industrial application, wide area monitoring is vast in territory, to different distance
Place manual control lens zoom, the focusing for needing to monitor are too cumbersome, and system automation performance is not high.
Summary of the invention
The present invention overcomes above-mentioned the deficiencies in the prior art, the calibration for providing a kind of remote optical monitoring system is quickly focused
Method realizes fast automatic zoom and focusing, can satisfy wide area monitoring field and applies to system intelligent and automation aspect
Higher performance requirement.
Technical solution of the present invention:
A kind of calibration quick focusing method of remote optical monitoring system, the following steps are included:
Step a, an optoelectronic device is set up, is adjusted to suitable photoelectricity by manually demarcating for different distance target
Focal length and focusing obtain data, and all distance calibrations are completed, and establish the mapping table of a set of different distance and teaching aid focusing；
Step b, the positional distance for obtaining target location focuses mapping table by distance, focal length according to positional distance data
Calculate suitable focal length focus data；
Step c, focal length and focus data, it is converted into the control command to photoelectricity, guides the focal length of photo-electric control camera lens
With focusing stroke, that is, realize fast and accurately to photoelectricity zoom focus control.
Further, the method manually demarcated, including set up one and have orientation values, pitch value, focal length value, focusing
The servo turntable optical monitoring equipment of Value Data passback, and the installation site of the equipment and height are input to geographical information platform
On；Installation site of the tester A using handhold GPS in servo turntable optical monitoring equipment demarcates a coordinate points, utilizes this
Point is that target is moved to the standing at 100 meters of the point, and calibration personnel B rotation servo turntable optical monitoring equipment finds tester
Member A, and A is made to be in the central location of monitored picture, so that A is reached suitable size by adjusting focal length order, that is, fixed
Good field angle size；Again by adjusting focus commands, A is made to reach clearest state, records focal length value at this time and focus value.
Further, the method for establishing the mapping table that a set of different distance and teaching aid focus, including from 100-4000
Rice notes down the focal length value and focus value of a point every 100 meters, forms the mapping table of distance and focal length focus value.
Further, the method for calculating suitable focal length focus data, including if distance is 100 integral multiple
Take the record numerical value of mapping table；If not 100 integral multiple is then obtained according to the adjacent numerical value in front and back with the value according to formula,
Distance is L, and adjacent focal length value is a and b, n=L-100*m；M, n are natural number, focal length value Z=a+n* (a-b)/100, meter
Calculate focus value F.
Further, the method to photoelectricity zoom focus control, including according to calculated focal length value Z and gather
Coke number F controls the motor of turntable camera lens, makes up to specified numerical value Z, F, then camera lens can be automatically performed the mistake of zoom and focusing
Journey makes the object blur-free imaging of target point L and in suitable field angle.
The present invention has the advantages that compared with the existing technology
The present invention provides a kind of calibration quick focusing method of remote optical monitoring system, using calibration early period it is different away from
It realizes fast automatic zoom by the zoom and focus value voltage control mode of camera lens from suitable focal length and focus value and gathers
Coke makes optical monitoring equipment fast and accurately reach the video imaging effect of ideal a visual field and clarity, wide to meet
Domain monitoring field is applied to system intelligent and the higher performance requirement of automation aspect.
The present invention can be vast in territory in wide area monitoring, needs the place monitored not need manual control mirror different distance
Head zoom, focusing are simple, and system automation performance is high.
It is high to focus success rate for the automatic convergence block of camera lens of the automatic focusing function of the present invention.And it is frequent certainly not need camera lens
It is dynamic to focus, the abrasion of motor and driving member is avoided, equipment normal service life is increased.
Detailed description of the invention
Fig. 1 is flow chart of the present invention.
Specific embodiment
Below with reference to attached drawing, the present invention is described in detail.
Specific embodiment one
A kind of calibration quick focusing method of remote optical monitoring system, as shown in Figure 1, comprising the following steps:
Step a, an optoelectronic device is set up, is servo turntable optical monitoring equipment, model ARD-PRT-02, for not
Same distance target is adjusted to suitable photoelectricity focal length and focusing by manually demarcating, and obtains data, and all distance calibrations are completed,
The mapping table of a set of different distance and teaching aid focusing is established, as shown in table 1；
Step b, the positional distance for obtaining target location focuses mapping table by distance, focal length according to positional distance data
Calculate suitable focal length focus data；
Step c, focal length and focus data, it is converted into the control command to photoelectricity, guides the focal length of photo-electric control camera lens
With focusing stroke, that is, realize fast and accurately to photoelectricity zoom focus control.
Specifically, the method manually demarcated, including set up one and have orientation values, pitch value, focal length value, focus value
The servo turntable optical monitoring equipment of data back, and the installation site of the equipment and height are input to GIS geography information system
It unites on platform；Installation site of the tester A using handhold GPS in servo turntable optical monitoring equipment demarcates a coordinate points,
Handhold GPS model collection thinks treasured A8, is that target is moved to the standing at 100 meters of the point using this point, calibration personnel B rotation is watched
It takes turntable optical monitoring equipment and finds tester A, and A is made to be in the central location of monitored picture, by adjusting focal length order
So that A is reached suitable size, that is, fixes field angle size；Again by adjusting focus commands, A is made to reach clearest shape
State, records focal length value at this time and focus value, and specific set-up procedure includes by IE browser or special-purpose software, input monitoring
Device IP, port numbers, user name, password may be implemented in control interface, Focussing and focusing adjustment.
Specifically, the method for the mapping table for establishing a set of different distance and teaching aid focusing, including from 100-4000 meters
The focal length value and focus value of a point are noted down every 100 meters, form the mapping table of distance and focal length focus value.
Specifically, the method for calculating suitable focal length focus data, including being taken if distance is 100 integral multiple
The record numerical value of mapping table；If not 100 integral multiple is then obtained according to the adjacent numerical value in front and back with the value according to formula, away from
From for L, adjacent focal length value is a and b, n=L-100*m；M, n are natural number, and focal length value Z=a+n* (a-b)/100 is calculated
Focus value F.
The method for calculating focus value F includes the record numerical value that mapping table is taken if distance is 100 integral multiple；If not
100 integral multiple then show that distance is L according to the adjacent numerical value in front and back with the value according to formula, and adjacent focus value value is A
And B, N=L-100*M；M, N are natural number, and N subtracts the remainder of 100 integral multiples, then focus value F=A+N* (A-B)/100.
Specifically, the method to photoelectricity zoom focus control, including according to calculated focal length value Z and focus value F,
The motor for controlling turntable camera lens, makes up to specified numerical value Z, F, then camera lens can be automatically performed the process of zoom and focusing, make
The object blur-free imaging of target point L and be in suitable field angle.
The motor method of specific control turntable camera lens includes that GIS GIS platform turns servo by vector data
The control panel of platform optical monitoring equipment sends instruction, and the motor that control panel controls camera lens again is adjusted.
The mapping table that 1 distance of table and teaching aid focus
Claims (5)
1. a kind of calibration quick focusing method of remote optical monitoring system, which comprises the following steps:
Step a, an optoelectronic device is set up, is adjusted to suitable photoelectricity focal length by manually demarcating for different distance target
And focusing, data are obtained, all distance calibrations are completed, and the mapping table of a set of different distance and teaching aid focusing is established；
Step b, the positional distance for obtaining target location is focused mapping table and is calculated according to positional distance data by distance, focal length
Suitable focal length focus data out；
Step c, focal length and focus data, it is converted into the control command to photoelectricity, guide the focal length of photo-electric control camera lens and is gathered
Burnt stroke is realized to photoelectricity zoom focus control.
2. a kind of calibration quick focusing method of remote optical monitoring system according to claim 1, which is characterized in that described
The method manually demarcated, including set up one have orientation values, pitch value, focal length value, focus value data back servo turntable
Optical monitoring equipment, and the installation site of the equipment and height are input on geographical information platform；Tester A utilizes hand-held
GPS demarcates a coordinate points in the installation site of servo turntable optical monitoring equipment, and being moved to distance using this point for target should
It stands at 100 meters of point, calibration personnel B rotation servo turntable optical monitoring equipment finds tester A, and A is made to be in monitoring picture
The central location in face makes A reach suitable size, exactly fixes field angle size by adjusting focal length order；Pass through tune again
Whole focus commands make A reach clearest state, record focal length value at this time and focus value.
3. a kind of calibration quick focusing method of remote optical monitoring system according to claim 1, which is characterized in that described
The method for establishing the mapping table of a set of different distance and teaching aid focusing, including from 100-4000 meters every 100 meters of records, one point
Focal length value and focus value, formed distance and focal length focus value mapping table.
4. a kind of calibration quick focusing method of remote optical monitoring system according to claim 1, which is characterized in that described
The method for calculating suitable focal length focus data, the record numerical value including taking mapping table if distance is 100 integral multiple；If
Be not 100 integral multiple then according to and the adjacent numerical value in front and back of the value show that distance is L, adjacent focal length value according to formula
For a and b, n=L-100*m；M, n are natural number, and focal length value Z=a+n* (a-b)/100 calculates focus value F.
5. a kind of calibration quick focusing method of remote optical monitoring system according to claim 4, which is characterized in that described
The method to photoelectricity zoom focus control, including according to calculated focal length value Z and focus value F, control turntable camera lens
Motor makes up to specified numerical value Z, F, then camera lens can be automatically performed the process of zoom and focusing, keep the object of target point L clear
It is clear to be imaged and be in suitable field angle.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112055155A (en) * | 2020-09-10 | 2020-12-08 | 中科微至智能制造科技江苏股份有限公司 | Self-learning-based industrial camera automatic focusing method, device and system |
| CN113063101A (en) * | 2021-04-13 | 2021-07-02 | 大庆安瑞达科技开发有限公司 | Visual and accurate positioning monitoring method for leakage alarm position of crude oil pipeline |
| WO2021135867A1 (en) * | 2020-01-03 | 2021-07-08 | 支付宝(杭州)信息技术有限公司 | Lens module focusing method and apparatus, and device |
| CN113115001A (en) * | 2021-04-13 | 2021-07-13 | 大庆安瑞达科技开发有限公司 | Oil and gas field video monitoring real-time three-dimensional projection fusion method |
| CN113115002A (en) * | 2021-04-13 | 2021-07-13 | 大庆安瑞达科技开发有限公司 | Oil and gas field personnel and vehicle positioning associated video monitoring method |
| CN114866691A (en) * | 2022-04-19 | 2022-08-05 | 大庆安瑞达科技开发有限公司 | Method for transferring rotation of monitoring equipment by clicking monitoring picture, electronic equipment and storage medium |
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| CN114866691A (en) * | 2022-04-19 | 2022-08-05 | 大庆安瑞达科技开发有限公司 | Method for transferring rotation of monitoring equipment by clicking monitoring picture, electronic equipment and storage medium |
| CN114866691B (en) * | 2022-04-19 | 2023-10-10 | 大庆安瑞达科技开发有限公司 | Method for turning monitoring equipment by clicking monitoring picture, electronic equipment and storage medium |
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Effective date of registration: 20200327 Address after: 163316 21 Floor, Gate 3, Block A, No. 2, Xinxing Street, Daqing High-tech Zone, Heilongjiang Province Applicant after: DAQING ANRUIDA TECHNOLOGY DEVELOPMENT Co.,Ltd. Applicant after: BEIJING FJR OPTOELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 163316 21 Floor, Gate 3, Block A, No. 2, Xinxing Street, Daqing High-tech Zone, Heilongjiang Province Applicant before: DAQING ANRUIDA TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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Application publication date: 20190920 |