CN108227595A - Laser pulse synchronisation control means and system - Google Patents
Laser pulse synchronisation control means and system Download PDFInfo
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- CN108227595A CN108227595A CN201810173634.5A CN201810173634A CN108227595A CN 108227595 A CN108227595 A CN 108227595A CN 201810173634 A CN201810173634 A CN 201810173634A CN 108227595 A CN108227595 A CN 108227595A
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 12
- 230000000630 rising effect Effects 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000000605 extraction Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000002679 ablation Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Lasers (AREA)
- Optical Communication System (AREA)
Abstract
The present invention provides a kind of laser pulse synchronisation control means and systems, the system includes control panel, microcontroller and the power supply interface with the monolithic mechatronics are provided on the control panel, PSO control signal input mouths, SYNC synchronous signal input end mouths, GATE signal output ports and RS232 communication port, the power supply interface is used to connect power supply module, the PSO control signal inputs mouth is used to connect the difference PSO signal output ports of linear electric motor controller, the SYNC synchronous signal input ends mouth is used for the synchronous signal output end mouth of connecting laser, the GATE signal output ports are used for connecting laser control port, the RS232 communication port carries out the PC machine of parameter regulation and control for connecting.Present invention can ensure that output determines the pulse of number, precise control is quick, and system bulk is compact, easy to install, using flexible, can be adapted for various ultrafast lasers.
Description
Technical field
The present invention relates to laser controlling field more particularly to a kind of laser pulse synchronisation control means and systems.
Background technology
Existing laser pulse synchronisation control means mainly has following two：
1. in order to equidistantly be got ready in curve in glass and sapphire cutting, often using PSO（Position
Synchronized Output）Pattern, i.e. position synchronous mode.By linear electric motor controller trace location, every target
During position, sending out PSO signals makes laser light extraction.Since motor has acceleration and deceleration, the time interval of these signals is not known simultaneously.
2. seeing Fig. 1, existing laser generally passes through optical signals（GATE signals）Time length come when controlling light extraction
Between, while determine delay before each laser pulse（t1）It can be there are one synchronizing signal（SYNC signal）, when GATE signals wrap
During several SYNC signals, laser can export the pulse of same number, and this control mode is when GATE signal times are longer
（Such as the continuous light extraction ablation of laser）There is no problem.When needing accurate control to units pulse number, the width of GATE signals
The very sensitive influence light extraction pulse number of degree meeting, such as Fig. 2, similary one laser of setting shake the GATE signals of cycle length, meeting
There are two kinds of situations, first GATE signal can trigger a pulse in Fig. 2, second GATE signal can export two pulses or
Person's missing pulse（It is related to laser）, processing quality can be seriously affected in this way even results in processing failure.
In order to be precisely controlled to laser pulse, that is, receiving optical signals（PSO signals）Accurate output one afterwards
Or several laser pulses, it needs after PSO signals are received in the GATE signals of accurate location output exact width.Therefore,
It is necessary to devise a control system to be specifically used to accurately control pulsed laser output.
Invention content
The purpose of the present invention is to provide a kind of laser pulse synchronisation control means and systems, it is intended to existing for solving
Laser pulse synchronisation control means the problem of cannot accurately controlling pulse number.
The invention is realized in this way：
On the one hand, the present invention provides a kind of laser pulse synchronisation control means, includes the following steps：
The SYNC signal of control panel real-time reception laser output and the PSO signals of linear electric motor controller output；
After control panel receives PSO signals, first SYNC signal is waited for, after the rising edge for receiving SYNC signal, during delay
Between t, after delay, export GATE signals, while detect SYNC signal and counted, after the umber of pulse for reaching setting, then prolong
When time t, close GATE signals.
Further, at the time of the finish time of delay time t is between two SYNC signals.
On the other hand, the present invention also provides a kind of laser pulse synchronous control systems, including control panel, the control panel
On be provided with microcontroller, be additionally provided on the control panel with the power supply interface of the monolithic mechatronics, PSO control signal it is defeated
Inbound port, SYNC synchronous signal input ends mouth, GATE signal output ports and RS232 communication port, the power supply interface are used
In connection power supply module, the PSO control signal inputs mouth is used to connect the difference PSO signals output of linear electric motor controller
Port, the SYNC synchronous signal input ends mouth are used for the synchronous signal output end mouth of connecting laser, and the GATE signals are defeated
Exit port is used for connecting laser control port, and the RS232 communication port carries out the PC of parameter regulation and control for connecting
Machine.
Further, 74HC74 d type flip flops are additionally provided on the control panel, the 74HC74 d type flip flops are connected to
Between the microcontroller and the SYNC synchronous signal input ends mouth, for after SYNC signal is received, output signal to be overturn,
The signal transmission that this is widened is handled to microcontroller again.
Further, max232 chips are additionally provided on the control panel, the max232 chips are connected to the monolithic
Between machine and the RS232 communication port.
Further, MAX490 chips are additionally provided on the control panel, the MAX490 chips are connected to the monolithic
Between machine and the PSO control signal inputs mouth, for PSO signals to be converted to single-ended signal, it is then output to microcontroller
It is handled.
Further, AS1117M3 chips, the AS1117M3 chips and the monolithic are additionally provided on the control panel
Machine connects.
Compared with prior art, the invention has the advantages that：
This laser pulse synchronisation control means provided by the invention and system, it is ensured that the accurate envelope of GATE signals determines
The SYNC signal of number is so as to export the pulse of determining number；Control panel controls light extraction by laser itself synchronizing signal
Number, precise control are quick；The system bulk is compact, easy to install, takes up space small；The system sets multiple ports, is conveniently connected to
In each equipment, using flexible；The system can very easily change control parameter by the PC machine that serial ports connects, and can be adapted for
Various ultrafast lasers.
Description of the drawings
Fig. 1 is a kind of laser pulse Synchronization Control sequence diagram of the prior art；
Fig. 2 is a kind of laser pulse Synchronization Control sequence diagram of the prior art；
Fig. 3 is a kind of sequence diagram of laser pulse synchronisation control means provided in this embodiment；
Fig. 4 is a kind of schematic diagram of laser pulse synchronous control system provided in this embodiment；
Fig. 5 is a kind of laser pulse synchronous control system partial circuit schematic diagram provided in this embodiment；
Fig. 6 is a kind of laser pulse synchronous control system partial circuit schematic diagram provided in this embodiment
Fig. 7 is a kind of laser pulse synchronous control system partial circuit schematic diagram provided in this embodiment
Fig. 8 is a kind of laser pulse synchronous control system partial circuit schematic diagram provided in this embodiment
Fig. 9 is a kind of laser pulse synchronous control system partial circuit schematic diagram provided in this embodiment.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained all other without making creative work
Embodiment shall fall within the protection scope of the present invention.
As shown in figure 3, the embodiment of the present invention provides a kind of laser pulse synchronisation control means, include the following steps：
The SYNC signal of control panel real-time reception laser output（Synchronizing signal）With the PSO signals of linear electric motor controller output
（Position synchronization output signal）；
After control panel receives PSO signals, first SYNC signal is waited for, after the rising edge for receiving SYNC signal, during delay
Between t, after delay, export GATE signals（Optical signals）, while detect SYNC signal and counted, reach the pulse of setting
After number, then delay time t, close GATE signals.
The length of delay time t is different and different according to laser, it can be configured, and setting target is delay
At the time of the finish time of time t is between two SYNC signals, to avoid there is the pulse of uncertain number.
The above-mentioned control method of the present invention can ensure that the accurate envelope of GATE signals determines the SYNC signal of number so as to defeated
Go out the pulse of determining number, achieve the purpose that determining the accurate pulse of position output.Such as it needs to export two pulses, such as Fig. 3
Shown, regardless of PSO signals and SYNC signal position relationship, total energy ensures that the GATE signal integrity envelopes of output live two
SYNC signal, so as to export two pulses.
As shown in Figure 4 and Figure 5, the embodiment of the present invention also provides a kind of laser pulse synchronous control system, is used to implement
Above-mentioned control method, the system include control panel, are provided with microcontroller 1 on the control panel, are additionally provided on the control panel
The power supply interface 1 that is electrically connected with the microcontroller 1, PSO control signal inputs mouth 7, SYNC synchronous signal input ends mouth 9,
GATE signal output ports 10 and RS232 communication port 4；For connecting power supply module, specially 5V is supplied the power supply interface 1
Electrical interface, it may be connected to 5V power supply modules in cabinet；The PSO control signal inputs mouth 7 is used to connect linear motor control
The difference PSO signal output ports of device processed；The SYNC synchronous signal input ends mouth 9 is defeated for the synchronizing signal of connecting laser
Exit port, according to laser, herewith signal does not come from the control cabinet of laser head or laser；The GATE signal output ends
Mouth uses BNC ports or SMA ports for connecting laser control port according to laser difference；The RS232 communication ends
Mouth 4 is illustrated adjusting and control for connecting the PC machine for carrying out parameter regulation and controlling using serial ports software.The microcontroller
The SYNC signal of real-time reception laser output and the PSO signals of linear electric motor controller output, after PSO signals are received,
First SYNC signal is waited for, after the rising edge for receiving SYNC signal, delay time t, after delay, output GATE letters
Number, while detect SYNC signal and counted, after the umber of pulse for reaching setting, then delay time t, close GATE signals.This prolongs
When time t length it is different and different according to laser, it can be configured, end of the setting target for delay time t
At the time of moment is between two SYNC signals, to avoid there is the pulse of uncertain number.
The above-mentioned control system of the present invention can realize that the accurate envelope of GATE signals determines the SYNC signal of number so as to defeated
Go out the pulse of determining number；Control panel controls light extraction number by laser itself SYNC synchronizing signals, and precise control is quick；It should
System bulk is compact, easy to install, takes up space small；The system sets multiple ports, is conveniently connected in each equipment, uses spirit
It is living；The system can very easily change control parameter by the PC machine that serial ports connects, and can be adapted for various ultrafast lasers.
As shown in fig. 6, the preferred embodiment as the present embodiment, 74HC74 d type flip flops 8 are additionally provided on the control panel,
The 74HC74 d type flip flops 8 are connected between the microcontroller 1 and the SYNC synchronous signal input ends mouth 9, for receiving
To after SYNC signal, output signal is overturn, then the signal transmission that this is widened is handled to microcontroller 1, is avoided certain
The problem of SYNC signal narrower width of laser, microcontroller 1 cannot capture.
As shown in figure 8, the preferred embodiment as the present embodiment, max232 chips 3 are additionally provided on the control panel, it is described
Max232 chips 3 are connected between the microcontroller 1 and the RS232 communication port 4, are used to carry out by max232 chips 3
Level conversion realizes microcontroller 1 and PC machine serial communication, with controls such as this delay time and the pulse numbers that set different demands
Signal.
As shown in fig. 7, in order to reduce the distortion in signals transmission, the PSO signals of actual use are differential signal, are made
For the preferred embodiment of the present embodiment, MAX490 chips 6 are additionally provided on the control panel, the MAX490 chips 6 are connected to institute
It states between microcontroller 1 and the PSO control signal inputs mouth 7, for PSO signals to be converted to single-ended signal, then exports
It is handled to microcontroller 1.
As shown in figure 9, the preferred embodiment as the present embodiment, AS1117M3 chips 5, institute are additionally provided on the control panel
It states AS1117M3 chips 5 to connect with the microcontroller 1, for carrying out voltage stabilizing, protects circuit, it is steady to improve impulsive synchronization control system
It is qualitative.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of laser pulse synchronisation control means, which is characterized in that include the following steps：
The SYNC signal of control panel real-time reception laser output and the PSO signals of linear electric motor controller output；
After control panel receives PSO signals, first SYNC signal is waited for, after the rising edge for receiving SYNC signal, during delay
Between t, after delay, export GATE signals, while detect SYNC signal and counted, after the umber of pulse for reaching setting, then prolong
When time t, close GATE signals.
2. laser pulse synchronisation control means as described in claim 1, it is characterised in that：At the end of delay time t
At the time of quarter between two SYNC signals.
3. a kind of laser pulse synchronous control system, including control panel, it is characterised in that：Monolithic is provided on the control panel
Machine is additionally provided with and the power supply interface of the monolithic mechatronics, PSO control signal inputs mouth, SYNC on the control panel
Synchronous signal input end mouth, GATE signal output ports and RS232 communication port, the power supply interface is for connection power supply mould
Block, the PSO control signal inputs mouth is used to connect the difference PSO signal output ports of linear electric motor controller, described
SYNC synchronous signal input ends mouth is used for the synchronous signal output end mouth of connecting laser, and the GATE signal output ports are used for
Connecting laser control port, the RS232 communication port carry out the PC machine of parameter regulation and control for connecting.
4. laser pulse synchronous control system as claimed in claim 3, it is characterised in that：It is additionally provided on the control panel
74HC74 d type flip flops, the 74HC74 d type flip flops be connected to the microcontroller and the SYNC synchronous signal input ends mouth it
Between, for after SYNC signal is received, output signal to be overturn, then the signal transmission that this is widened to microcontroller at
Reason.
5. laser pulse synchronous control system as claimed in claim 3, it is characterised in that：It is additionally provided on the control panel
Max232 chips, the max232 chips are connected between the microcontroller and the RS232 communication port.
6. laser pulse synchronous control system as claimed in claim 3, it is characterised in that：It is additionally provided on the control panel
MAX490 chips, the MAX490 chips are connected between the microcontroller and the PSO control signal inputs mouth, for inciting somebody to action
PSO signals are converted to single-ended signal, are then output to microcontroller and are handled.
7. laser pulse synchronous control system as claimed in claim 3, it is characterised in that：It is additionally provided on the control panel
AS1117M3 chips, the AS1117M3 chips are connect with the microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173634.5A CN108227595B (en) | 2018-03-02 | 2018-03-02 | Laser pulse synchronous control method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173634.5A CN108227595B (en) | 2018-03-02 | 2018-03-02 | Laser pulse synchronous control method and system |
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| Publication Number | Publication Date |
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| CN108227595A true CN108227595A (en) | 2018-06-29 |
| CN108227595B CN108227595B (en) | 2023-11-24 |
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Cited By (5)
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|---|---|---|---|---|
| CN110265861A (en) * | 2019-06-20 | 2019-09-20 | 北京盛镭科技有限公司 | Control the method and system of pulsed laser output |
| CN110286613A (en) * | 2019-05-13 | 2019-09-27 | 大族激光科技产业集团股份有限公司 | A kind of two-axis laser control system |
| CN110421247A (en) * | 2019-06-25 | 2019-11-08 | 上海柏楚电子科技股份有限公司 | A kind of ultrafast laser for crispy material is equidistant to get processing method ready |
| CN111610740A (en) * | 2020-06-03 | 2020-09-01 | 上海柏楚数控科技有限公司 | Processing control method and system, first and second control devices, and storage medium |
| CN112767673A (en) * | 2020-12-29 | 2021-05-07 | 中国电子科技集团公司第十八研究所 | Distributed control system for high-power digital pulse power supply |
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| Publication number | Publication date |
|---|---|
| CN108227595B (en) | 2023-11-24 |
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