CN106774533A - A kind of optical cavity closed loop adjusting means and its adjusting method - Google Patents
A kind of optical cavity closed loop adjusting means and its adjusting method Download PDFInfo
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- CN106774533A CN106774533A CN201710191725.7A CN201710191725A CN106774533A CN 106774533 A CN106774533 A CN 106774533A CN 201710191725 A CN201710191725 A CN 201710191725A CN 106774533 A CN106774533 A CN 106774533A
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- motor
- image
- closed loop
- optical cavity
- mirror holder
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D25/00—Control of light, e.g. intensity, colour or phase
- G05D25/02—Control of light, e.g. intensity, colour or phase characterised by the use of electric means
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a kind of optical cavity closed loop adjusting means and its adjusting method, its adjusting means includes industrial computer, the industrial computer is connected with controllor for step-by-step motor, camera, the controllor for step-by-step motor is connected with mirror holder reflection unit, hot spot in the camera collection mirror holder reflection unit, its adjusting method is comprised the following steps：Start, automatic control program initialization, whether each connection communication is successful, whether the motor that checks connection, have motor to operate, stopping being currently running, IMAQ, image preprocessing, image procossing, data processing, operation motor, whether whether motor is wholly off, wait whole motors stoppings, suspending and automatically adjust, suspend.The camera shooting, collecting mirror holder incoming industrial computer of reflection unit image in the present invention, image calculates the stepper motor moving direction and step-length of control reflecting optics angle in industrial computer, implemented by controller again, make hot spot in real time in center of lens, so as to realize that closed loop is adjusted.
Description
Technical field
The invention belongs to a kind of laser optical path control device and its control method, and in particular to a kind of optical cavity closed loop regulation dress
Put and its adjusting method.
Background technology
Traditional optical cavity light path reflecting system uses the open loop wasted time and energy manually to adjust in the control aspect of laser optical path
Section, it is necessary to manually operated adjusting knob carry out reflecting optics level, luffing angle regulation, this hinders light path reflecting system significantly
The realization of engineering and intelligent Application.
, when reflection unit middle and long distance is transmitted, laser optical path can be because horizontal tremble shake, flow perturbation and itself drift for laser
The reasons such as shifting shift, and undoubtedly significantly increase the regulation difficulty of open loop manual adjustment.
Closed loop regulation is widely used to the every field such as industrial manufacture, agricultural production.Closed loop regulation is replaced with computer generation
Manually, while using manpower and material resources sparingly, more there are stabilization, accurate, three important features of quick response.
The content of the invention
The present invention is proposed to solve the problems, such as prior art, the purpose is to provide a kind of optical cavity closed loop adjusting means
And its adjusting method.
The technical scheme is that：A kind of optical cavity closed loop adjusting means, including industrial computer, the industrial computer and stepping electricity
Machine controller, camera are connected, and the controllor for step-by-step motor is connected with mirror holder reflection unit, and the camera collection mirror holder is anti-
Hot spot in injection device.
The controllor for step-by-step motor include connection and Driving Stepping Motor driving stepper motor module, realize computer
The signal for turn RS485 modules with the RS232 of 1 to 4 communication of control cabinet, sending over to computer carries out Decoding Analysis and obtains
Corresponding control command and single-chip microcomputer main control module, the power module of power supply of control parameter control stepper motor operation.
Eyeglass level, luffing angle regulation of the controllor for step-by-step motor by stepper motor to mirror holder reflection unit.
According to the adjusting method of any one above-mentioned optical cavity closed loop adjusting means, comprise the following steps：
（ⅰ）Start.
（ⅱ）Automatic control program is initialized
Open up internal memory and be powered to camera and stepper motor.
（ⅲ）Whether each connection communication succeeds
If connection communication is failed, into step（ⅳ）；If connection communication success, into step（ⅴ）.
（ⅳ）Check connection
Checking step（ⅲ）The failed connection of middle communication.
（ⅴ）Whether there is motor to operate
If motor is operated, into step（ⅵ）；If operated without motor, into step（ⅶ）.
（ⅵ）The motor that stopping is currently running.
（ⅶ）IMAQ
The camera of capture program calling interface program, is acquired to the hot spot in mirror holder reflection unit.
（ⅷ）Image preprocessing
To step（ⅶ）The image of middle collection is pre-processed, and is obtained target area image data and is preserved.
（ⅸ）Image procossing
To step（ⅷ）Middle target area image carries out further image procossing, obtains target component and is preserved.
（ⅹ）Data processing
Each stepper motor moving step length and direction are calculated, feedback control signal is obtained.
（ⅹⅰ）Operation motor
Will（ⅹ）In feedback control signal be transferred to controllor for step-by-step motor, motor.
（ⅹⅱ）Whether motor is wholly off
Judge whether motor is wholly off, if motor is not wholly off, into step（ⅹⅲ）If motor is wholly off,
Into step（ⅹⅳ）.
（ⅹⅲ）Whole motors are waited to stop.
（ⅹⅳ）Whether pause is automatically adjusted.
If pause is automatically adjusted enters step（ⅹⅴ）If not suspending to automatically adjust and entering step（ⅶ）.
（ⅹⅴ）Pause.
The step（ⅷ）Middle target area image data refer to the image of continuous acquisition is fixed time interval sampling,
Eyeglass identifying processing simultaneously cuts, so as to accurately extract rectangle lens image.
The step（ⅸ）Middle target component refers to center of lens coordinate and spot center coordinate, and target component is by extracting
Lens image on successively carry out the conversion of single channel gray-scale map, Threshold segmentation and morphologic filtering, ellipse fitting obtain.
Camera is with certain sample frequency shooting, collecting mirror holder incoming industrial computer of reflection unit image, image in the present invention
After carrying out respective handling in industrial computer, calculate on eyeglass function between the position coordinates and reference coordinate of laser facula and close
System, it is determined that the stepper motor moving direction and step-length of control reflecting optics angle, then implemented by controller, make hot spot reality
When be in center of lens, so as to realize closed loop adjust.
Brief description of the drawings
Fig. 1 is the connection diagram of adjusting means in the present invention；
Fig. 2 is the connection diagram of controllor for step-by-step motor in the present invention；
Fig. 3 is the schematic diagram of adjusting means in the present invention；
Fig. 4 is the method flow diagram of adjusting method in the present invention
Wherein：
The controllor for step-by-step motor of 1 industrial computer 2
The camera of 3 mirror holder reflection unit 4
The RS232 of 21 driving stepper motor module 22 turns RS485 modules
The power module of 23 single-chip microcomputer main control module 24.
Specific embodiment
Hereinafter, referring to the drawings and embodiment the present invention is described in detail：
As shown in Figure 1 and 2, a kind of optical cavity closed loop adjusting means, including industrial computer 1, the industrial computer 1 and controllor for step-by-step motor
2nd, camera 4 is connected, and the controllor for step-by-step motor 2 is connected with mirror holder reflection unit 3, the collection mirror holder reflection of the camera 4
Hot spot in device 3.
The controllor for step-by-step motor 2 includes driving stepper motor module 21, the realization meter of connection and Driving Stepping Motor
The signal that the RS232 of 1 to 4 communication of calculation machine and control cabinet turns RS485 modules 22, sended over to computer carries out Decoding Analysis
And obtain the power supply of the single-chip microcomputer main control module 23, power supply of corresponding control command and control parameter control stepper motor operation
Module 24.
Eyeglass level, luffing angle tune of the controllor for step-by-step motor 2 by stepper motor to mirror holder reflection unit 3
Section.
As shown in figure 3, laser reflects between mirror holder reflection unit 3, and hot spot is formed on eyeglass.Camera 4 is gathered
Analog image is converted into the incoming industrial computer 1 of data signal by hot spot.It is relative that industrial computer 1 calculates acquisition laser facula through image procossing
In center of lens in X-coordinate direction and the offset distance in Y-coordinate direction, as the incoming controllor for step-by-step motor of feedback control signal
2.Stepper motor carries out eyeglass level, luffing angle during controllor for step-by-step motor 2 controls mirror holder reflection unit 3 according to control signal
Regulation.
As shown in figure 4, the adjusting method of 4. any one the optical cavity closed loop adjusting means according to claim 1 ~ 3,
It is characterized in that：Comprise the following steps：
（ⅰ）Start.
（ⅱ）Automatic control program is initialized
Open up internal memory and be powered to camera and stepper motor.
（ⅲ）Whether each connection communication succeeds
If connection communication is failed, into step（ⅳ）；If connection communication success, into step（ⅴ）.
（ⅳ）Check connection
Checking step（ⅲ）The failed connection of middle communication.
（ⅴ）Whether there is motor to operate
If motor is operated, into step（ⅵ）；If operated without motor, into step（ⅶ）.
（ⅵ）The motor that stopping is currently running.
（ⅶ）IMAQ
The camera of capture program calling interface program（4）, to mirror holder reflection unit（3）In hot spot be acquired.
（ⅷ）Image preprocessing
To step（ⅶ）The image of middle collection is pre-processed, and is obtained target area image data and is preserved.
（ⅸ）Image procossing
To step（ⅷ）Middle target area image carries out further image procossing, obtains target component and is preserved.
（ⅹ）Data processing
Each stepper motor moving step length and direction are calculated, feedback control signal is obtained.
（ⅹⅰ）Operation motor
Will（ⅹ）In feedback control signal be transferred to controllor for step-by-step motor（2）, motor.
（ⅹⅱ）Whether motor is wholly off
Judge whether motor is wholly off, if motor is not wholly off, into step（ⅹⅲ）If motor is wholly off,
Into step（ⅹⅳ）.
（ⅹⅲ）Whole motors are waited to stop.
（ⅹⅳ）Whether pause is automatically adjusted
If pause is automatically adjusted enters step（ⅹⅴ）If not suspending to automatically adjust and entering step（ⅶ）.
（ⅹⅴ）Pause.
The step（ⅷ）Middle target area image data refer to the image of continuous acquisition is fixed time interval sampling,
Eyeglass identifying processing simultaneously cuts, so as to accurately extract rectangle lens image.
The step（ⅸ）Middle target component refers to center of lens coordinate and spot center coordinate, and target component is by extracting
Lens image on successively carry out the conversion of single channel gray-scale map, Threshold segmentation and morphologic filtering, ellipse fitting obtain.
Camera is with certain sample frequency shooting, collecting mirror holder incoming industrial computer of reflection unit image, image in the present invention
After carrying out respective handling in industrial computer, calculate on eyeglass function between the position coordinates and reference coordinate of laser facula and close
System, it is determined that the stepper motor moving direction and step-length of control reflecting optics angle, then implemented by controller, make hot spot reality
When be in center of lens, so as to realize closed loop adjust.
Claims (6)
1. a kind of optical cavity closed loop adjusting means, including industrial computer（1）, it is characterised in that：The industrial computer（1）With stepper motor control
Device processed（2）, camera（4）It is connected, the controllor for step-by-step motor（2）With mirror holder reflection unit（3）It is connected, the camera
（4）Collection mirror holder reflection unit（3）In hot spot.
2. a kind of optical cavity closed loop adjusting means according to claim 1, it is characterised in that：The controllor for step-by-step motor
（2）Driving stepper motor module including connection and Driving Stepping Motor（21）, realize 1 to 4 communication of computer and control cabinet
RS232 turn RS485 modules（22）, the signal that sends over to computer carries out Decoding Analysis and obtains corresponding control command
The single-chip microcomputer main control module run with control parameter control stepper motor（23）, power supply power module（24）.
3. a kind of optical cavity closed loop adjusting means according to claim 1, it is characterised in that：The controllor for step-by-step motor
（2）By stepper motor to mirror holder reflection unit（3）Eyeglass level, luffing angle regulation.
4. the adjusting method of any one the optical cavity closed loop adjusting means according to claim 1 ~ 3, it is characterised in that：Including
Following steps：
（ⅰ）Start
（ⅱ）Automatic control program is initialized
Open up internal memory and be powered to camera and stepper motor；
（ⅲ）Whether each connection communication succeeds
If connection communication is failed, into step（ⅳ）；If connection communication success, into step（ⅴ）；
（ⅳ）Check connection
Checking step（ⅲ）The failed connection of middle communication；
（ⅴ）Whether there is motor to operate
If motor is operated, into step（ⅵ）；If operated without motor, into step（ⅶ）；
（ⅵ）The motor that stopping is currently running
（ⅶ）IMAQ
The camera of capture program calling interface program（4）, to mirror holder reflection unit（3）In hot spot be acquired；
（ⅷ）Image preprocessing
To step（ⅶ）The image of middle collection is pre-processed, and is obtained target area image data and is preserved；
（ⅸ）Image procossing
To step（ⅷ）Middle target area image carries out further image procossing, obtains target component and is preserved；
（ⅹ）Data processing
Each stepper motor moving step length and direction are calculated, feedback control signal is obtained；
（ⅹⅰ）Operation motor
Will（ⅹ）In feedback control signal be transferred to controllor for step-by-step motor（2）, motor；
（ⅹⅱ）Whether motor is wholly off
Judge whether motor is wholly off, if motor is not wholly off, into step（ⅹⅲ）If motor is wholly off,
Into step（ⅹⅳ）；
（ⅹⅲ）Whole motors are waited to stop
（ⅹⅳ）Whether pause is automatically adjusted
If pause is automatically adjusted enters step（ⅹⅴ）If not suspending to automatically adjust and entering step（ⅶ）；
（ⅹⅴ）Pause.
5. the adjusting method of a kind of optical cavity closed loop according to claim 4, it is characterised in that：The step（ⅷ）Middle target
Region image data refers to and time interval sampling is fixed to the image of continuous acquisition, eyeglass identifying processing and is cut, so that accurate
Really extract rectangle lens image.
6. the adjusting method of a kind of optical cavity closed loop according to claim 4, it is characterised in that：The step（ⅸ）Middle target
Parameter refers to center of lens coordinate and spot center coordinate, and target component passes through successively to carry out single channel on the lens image that extracts
Gray-scale map conversion, Threshold segmentation and morphologic filtering, ellipse fitting are obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191725.7A CN106774533A (en) | 2017-03-28 | 2017-03-28 | A kind of optical cavity closed loop adjusting means and its adjusting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710191725.7A CN106774533A (en) | 2017-03-28 | 2017-03-28 | A kind of optical cavity closed loop adjusting means and its adjusting method |
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| Publication Number | Publication Date |
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| CN106774533A true CN106774533A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710191725.7A Pending CN106774533A (en) | 2017-03-28 | 2017-03-28 | A kind of optical cavity closed loop adjusting means and its adjusting method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130276A (en) * | 2020-10-19 | 2020-12-25 | 杭州奥创光子技术有限公司 | Closed-loop control light path automatic reset adjusting method, device and application thereof |
| CN113701727A (en) * | 2020-09-24 | 2021-11-26 | 北京科益虹源光电技术有限公司 | Fine adjustment reflector lens frame assembly, laser directivity adjustment device and adjustment method |
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| JP2003004682A (en) * | 2001-06-20 | 2003-01-08 | Nec Corp | Optical method and device for measuring partial pressure of gas |
| CN103674839A (en) * | 2013-11-12 | 2014-03-26 | 清华大学 | Visual sample positioning operating system and method based on light spot detection |
| CN204043666U (en) * | 2014-07-22 | 2014-12-24 | 上海芭欧通信技术有限公司 | Laser facula automatic-aligning system |
| CN104780306A (en) * | 2015-04-22 | 2015-07-15 | 山东神戎电子股份有限公司 | Laser night vision device capable of adjusting light spots at different distances to be aligned with view field center, and adjusting method |
| CN206757439U (en) * | 2017-03-28 | 2017-12-15 | 核工业理化工程研究院 | A kind of optical cavity closed loop adjusting means |
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2017
- 2017-03-28 CN CN201710191725.7A patent/CN106774533A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003004682A (en) * | 2001-06-20 | 2003-01-08 | Nec Corp | Optical method and device for measuring partial pressure of gas |
| CN103674839A (en) * | 2013-11-12 | 2014-03-26 | 清华大学 | Visual sample positioning operating system and method based on light spot detection |
| CN204043666U (en) * | 2014-07-22 | 2014-12-24 | 上海芭欧通信技术有限公司 | Laser facula automatic-aligning system |
| CN104780306A (en) * | 2015-04-22 | 2015-07-15 | 山东神戎电子股份有限公司 | Laser night vision device capable of adjusting light spots at different distances to be aligned with view field center, and adjusting method |
| CN206757439U (en) * | 2017-03-28 | 2017-12-15 | 核工业理化工程研究院 | A kind of optical cavity closed loop adjusting means |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701727A (en) * | 2020-09-24 | 2021-11-26 | 北京科益虹源光电技术有限公司 | Fine adjustment reflector lens frame assembly, laser directivity adjustment device and adjustment method |
| CN112130276A (en) * | 2020-10-19 | 2020-12-25 | 杭州奥创光子技术有限公司 | Closed-loop control light path automatic reset adjusting method, device and application thereof |
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Application publication date: 20170531 |
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