CN107565370B - Optical gate control method and system of laser - Google Patents
Optical gate control method and system of laser Download PDFInfo
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- CN107565370B CN107565370B CN201710972610.1A CN201710972610A CN107565370B CN 107565370 B CN107565370 B CN 107565370B CN 201710972610 A CN201710972610 A CN 201710972610A CN 107565370 B CN107565370 B CN 107565370B
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Abstract
The invention relates to the field of laser shutter control, in particular to a method and a system for controlling a laser shutter, wherein the method for controlling the laser shutter comprises the following steps: after the laser is switched to the internal control and before the optical shutter output is activated, the optical shutter output is closed, and the optical shutter signal is forbidden to be output; activating an optical shutter output, wherein an internally controlled optical shutter control outputs an internally controlled optical shutter signal; or after the laser is switched to external control and before the optical shutter output is activated, closing the optical shutter output and forbidding the optical shutter signal to be output; the shutter output is activated and the externally controlled shutter control outputs an externally controlled shutter signal. The invention also relates to a light gate control system of the laser. By designing the optical gate control method and the optical gate control system of the laser, the optical gate of the laser is not reflected after the internal control and the external control are switched, the output of an optical gate signal is forbidden, the optical gate signal is switched on only by waiting for triggering of other conditions, and the safety performance of laser control is improved.
Description
Technical Field
The invention relates to the field of laser shutter control, in particular to a method and a system for controlling a laser shutter.
Background
The shutter signal must be controlled safely and effectively to determine whether the laser outputs critical signals for lasing. The danger level of the high-power carbon dioxide laser is 4 types, wherein the high-power carbon dioxide laser utilizes a high-voltage power supply to generate high voltage, and the high voltage is acted on a mixed gas, so that the mixed gas is excited to generate laser. High power carbon dioxide lasers are classified as class 4, and their direct and diffuse radiation can cause damage to the skin, especially the eyes.
Lasers can produce up to 5KW of laser light, while in lasers there are high voltages of up to 30KV or more, which are required for the operation of the laser. The control modes for the carbon laser are divided into internal control and external control. The internal control is the operation software using the laser, and the function button on the software is directly operated to control the operation of the laser. The external control is the direct operation of buttons on the machine tool to which the laser is connected to control the operation of the laser.
Whether internally or externally controlled, the laser needs to be shuttered. The shutter signal is a switching value signal for controlling whether or not the laser beam is output. For example, when this signal is effectively 1, there is a laser output; when this signal is invalid to 0, no laser light is output.
When the laser is in operation, the internal control is switched to the external control, and the external control optical gate is just in an effective state at the moment, and if the output optical gate signal is equal to the external control optical gate signal, the output optical gate signal is also in an effective state, so that a great potential safety hazard exists in the place from the safety aspect. Because the laser operator only wants to change the laser control mode and does not have laser output immediately after the change.
Disclosure of Invention
The present invention provides a method and a system for controlling an optical shutter of a laser, which improve the safety of laser operation.
The technical scheme adopted by the invention for solving the technical problems is as follows: there is provided a method of controlling an optical shutter of a laser, the laser including an internal control for controlling the laser by an internal control program and an external control for controlling the laser by a control button on a machine tool, the method comprising the steps of: after the laser is switched to the internal control and before the optical shutter output is activated, the optical shutter output is closed, and the optical shutter signal is forbidden to be output; activating an optical shutter output, wherein an internally controlled optical shutter control outputs an internally controlled optical shutter signal; or after the laser is switched to external control and before the optical shutter output is activated, closing the optical shutter output and forbidding the optical shutter signal to be output; the shutter output is activated and the externally controlled shutter control outputs an externally controlled shutter signal.
Preferably, the method further includes the steps of: when the laser is switched from external control to internal control, the output of the optical gate is closed, and the output of an optical gate signal is forbidden; alternatively, when the laser is switched from the internal control to the external control, the shutter output is closed, and the output of the shutter signal is prohibited.
Preferably, the step of activating the shutter output comprises: restarting the internally controlled optical gate control, activating the optical gate output, and outputting an internal control optical gate signal by the internally controlled optical gate control; or restarting the externally controlled shutter control, activating the shutter output, and outputting the externally controlled shutter signal by the externally controlled shutter control.
Preferably, the method further includes the steps of: activating an external control switching key and restarting internal control optical gate control; or activating an externally controlled switching key to restart the externally controlled shutter control.
Wherein, preferably, when the optical gate output is closed, the internally controlled optical gate control and the externally controlled optical gate control are closed at the same time, and after the internally controlled optical gate control is restarted and the optical gate output is activated, the externally controlled optical gate control is in a closed state; alternatively, when the shutter output is closed, the internally controlled shutter control and the externally controlled shutter control are closed at the same time, and after the externally controlled shutter control is restarted and the shutter output is activated, the internally controlled shutter control is in the closed state.
The technical scheme adopted by the invention for solving the technical problems is as follows: there is provided an optical shutter control system of a laser, the laser including an internal control unit which controls the laser by an internal control program and an external control unit which controls the laser by control keys on a machine tool, the optical shutter control system comprising: the switching module switches the internal control unit and the external control unit and selects one control unit to control the laser; the optical gate main control module is respectively connected with the switching module and the optical gate output end, and closes the optical gate output and prohibits the optical gate signal from being output after the switching module performs switching; the internal optical gate control module is arranged in the internal control unit, and after the switching module is switched to the internal control unit, the internal optical gate control module requests the optical gate main control module to activate the optical gate output and outputs an internal optical gate signal to the optical gate output end; and the external optical gate control module is arranged in the external control unit, and after the switching module is switched to the external control unit, the external optical gate control module requests the optical gate main control module to activate optical gate output and output an external optical gate signal to the optical gate output end.
Wherein, the preferred scheme is: when the switching module switches, the optical gate main control module closes the optical gate output and prohibits the optical gate signal from being output.
Wherein, the preferred scheme is: the optical gate control system also comprises an external control trigger effective module arranged in the external control unit, wherein the external control trigger effective module is connected with the optical gate main control module and requests the optical gate main control module to activate optical gate output after the internal optical gate control module or the external optical gate control module is restarted.
Wherein, the preferred scheme is: the optical gate control system also comprises an alternative module, wherein the input end of the alternative module is respectively connected with the internal optical gate control module and the external optical gate control module, the output end of the alternative module is connected with the output end of the optical gate, and the control end of the alternative module is connected with the optical gate main control module; the optical gate main control module controls the alternative module to be communicated with the internal optical gate control module or the external optical gate control module.
Compared with the prior art, the optical gate control method and the optical gate control system for the laser have the advantages that by designing the optical gate control method and the optical gate control system for the laser, when the internal control and the external control are switched, the optical gate of the laser does not reflect, the output of an optical gate signal is forbidden, the optical gate signal is opened only when the laser needs to be triggered by other conditions, and the safety performance of laser control is improved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a flow chart illustrating a method of shutter control after switching to internal control in accordance with the present invention;
FIG. 2 is a flow chart illustrating the shutter control method after switching to external control according to the present invention;
FIG. 3 is a flow chart illustrating the shutter control method of the present invention when switching from external control to internal control;
FIG. 4 is a flow chart illustrating a method of controlling the shutters of the present invention when switching from internal control to external control;
FIG. 5 is a schematic flow chart of the internally controlled shutter control output internal control shutter signal of the present invention;
FIG. 6 is a schematic flow chart of the externally controlled shutter control output externally controlled shutter signal according to the present invention;
FIG. 7 is a block diagram of the shutter control system of the present invention.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present invention provides a preferred embodiment of a method of controlling a shutter of a laser.
A method for controlling an optical shutter of a laser comprises an internal control and an external control, wherein the internal control is used for controlling the laser through an internal control program, and the external control is used for controlling the laser through a control key on a machine tool; the laser operator switches from internal control to external control or from external control to internal control, so that the flexibility of laser operation is realized.
The method for controlling the optical shutter after the laser is switched to the internal control comprises the following steps:
s12, after the laser is switched to the internal control and before the shutter output is activated, closing the shutter output and prohibiting the output of the shutter signal;
s13, activating the shutter output, the internally controlled shutter control outputs an internally controlled shutter signal.
And the step of switching the laser to the externally controlled shutter control method comprises:
s22, after the laser is switched to the external control and before the shutter output is activated, closing the shutter output and prohibiting the output of the shutter signal;
s23, activating the shutter output, the externally controlled shutter control outputs an externally controlled shutter signal.
In step S12 or step S22, after the laser switching control method, the shutter output is always in the closed state, and at this time, no shutter signal is issued to the shutter of the laser, that is, the shutter is opened, regardless of the internally controlled shutter control or the externally controlled shutter control.
In step S13 or step S23, activating the shutter output includes various ways, such as opening by operating a specific key; or a certain key or a specific key is operated for multiple times to realize starting; or by entering some password.
Of course, as long as the specific operation is realized by the activation mode, the shutter output is activated, the shutter output is opened, and the shutter control output of the corresponding control mode is realized.
In the present embodiment, two-point functional operations need to be implemented: 1. if the laser is internally controlled, the output of the internal control optical gate signal is effective, and the output of the external control optical gate signal is ineffective, namely the output effectiveness of the optical gate signal is effective; if the internal control and the external control are switched, at this time, even if the switched shutter control output is valid, the shutter output does not react, and the shutter signal is output only when triggered by other conditions, that is, the output safety of the shutter signal.
Referring to fig. 3 and 4, the present invention provides a method for controlling a shutter based on switching.
The optical gate control method based on internal control comprises the following steps:
s11, when the laser is switched from external control to internal control, the optical gate output is closed, and the optical gate signal is forbidden to be output;
s12, after the laser is switched to the internal control and before the shutter output is activated, closing the shutter output and prohibiting the output of the shutter signal;
s13, activating the shutter output, the internally controlled shutter control outputs an internally controlled shutter signal.
And, the shutter control method based on external control includes the steps of:
s21, when the laser is switched from the internal control to the external control, the optical shutter output is closed, and the optical shutter signal is forbidden to be output;
s22, after the laser is switched to the external control and before the shutter output is activated, closing the shutter output and prohibiting the output of the shutter signal;
s23, activating the shutter output, the externally controlled shutter control outputs an externally controlled shutter signal.
As illustrated in fig. 5 and 6, the present invention provides a preferred embodiment based on activating the shutter output.
The step of activating the shutter output based on internal control comprises:
s131, activating external control switch key
S132, restarting the internally controlled optical shutter control, and activating the optical shutter output;
s133, internally controlled optical gate control outputs an internally controlled optical gate signal;
and, the step of activating the shutter output based on the external control comprises:
s231, activating a switching key of external control;
s232, restarting external control of the optical gate, and activating optical gate output;
and S233, outputting an external control optical shutter signal by the external control optical shutter control.
Further, when the shutter output is closed, the internally controlled shutter control and the externally controlled shutter control are closed at the same time, and after the internally controlled shutter control is restarted and the shutter output is activated, the externally controlled shutter control is in a closed state;
alternatively, when the shutter output is closed, the internally controlled shutter control and the externally controlled shutter control are closed at the same time, and after the externally controlled shutter control is restarted and the shutter output is activated, the internally controlled shutter control is in the closed state.
The specific implementation is shown in the following table:
when the signal is 1, the optical gate signal is output to be effective; when the signal is 0, the optical gate signal output is invalid; meanwhile, "X" indicates that the operation is invalid.
Specifically, when the internal control is switched with the external control, that is, the internal control makes a transition to the external control (signal changes from 0 to 1, i.e., signal rising edge) or the external control makes a transition to the internal control (signal changes from 1 to 0, i.e., signal falling edge), at this time, the operation of the internally controlled shutter signal and the externally controlled shutter signal is disabled, the output shutter signal is turned off, and 0 is output.
When the internal control is changed into the external control, the internal and external control signals are at a high level, at this time, the external control signal is valid, but the output of the optical gate signal is already closed, even if the optical gate control signal of the external control is 1, the optical gate signal is not output, the optical gate control of the external control needs to be closed and then opened again, and at this time, the output optical gate signal is 1. Thereafter, if there is no transition of the internal and external control signals, the output shutter signal is an externally controlled shutter output signal.
When the internal control signal is low after the external control is changed to the internal control, the internal control signal is active, but the output of the optical gate signal is already closed, even if the optical gate control signal of the internal control is 1, the optical gate signal is not output, the optical gate control of the internal control needs to be closed and then opened again, and the output optical gate signal is 1 at this time. Thereafter, if there is no transition of the internal and external control signals, the output shutter signal is an internally controlled shutter output signal.
The present invention provides a preferred embodiment of a shutter control system for a laser, as shown in figure 7.
An optical shutter control system of a laser, the laser comprises an internal control unit and an external control unit, the internal control unit controls the laser through an internal control program, the external control unit controls the laser through a control key on a machine tool, the optical shutter control system comprises a switching module 30, an optical shutter main control module 20, an internal optical shutter control module 11 and an external optical shutter control module 12, and the optical shutter control system is described in detail as follows:
the switching module 30 switches the internal control unit and the external control unit, and selects a control unit to control the laser; the optical gate main control module 20 is respectively connected with the switching module 30 and the optical gate output end 15, and after the optical gate main control module 20 switches the switching module 30, the optical gate output is closed, and the optical gate signal output is prohibited; the internal shutter control module 11 is disposed in the internal control unit, and after the switching module 30 switches to the internal control unit, the internal shutter control module 11 requests the shutter main control module 20 to activate the shutter output and output the internal shutter signal to the shutter output terminal 15; the external shutter control module 12 is disposed in the external control unit, and the external shutter control module 12 requests the shutter main control module 20 to activate the shutter output and output the external shutter signal to the shutter output terminal 15 after the switching module 30 switches to the external control unit.
Further, when the switching module 30 switches, the shutter main control module 20 closes the shutter output and prohibits the shutter signal from being output.
In this embodiment, the optical shutter control system further includes an external control trigger validation module 14 disposed in the external control unit, where the external control trigger validation module 14 is connected to the optical shutter main control module 20, and requests the optical shutter main control module 20 to activate the optical shutter output after the internal optical shutter control module 11 or the external optical shutter control module 12 is restarted.
The external control trigger effective module 14 activates the shutter output in various ways, such as opening by operating a specific key; or a certain key or a specific key is operated for multiple times to realize starting; or by entering some password. Of course, as long as the specific operation is realized by the activation mode, the shutter output is activated, the shutter output is opened, and the shutter control output of the corresponding control mode is realized.
In this embodiment, the optical gate control system further includes an alternative module 13, an input end of the alternative module 13 is respectively connected to the inner optical gate control module 11 and the outer optical gate control module 12, an output end thereof is connected to the optical gate output end 15, and a control end thereof is connected to the optical gate main control module 20; the shutter master control module 20 controls the alternative module 13 to communicate with the inner shutter control module 11 or with the outer shutter control module 12.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, but rather as embodying the invention in a wide variety of equivalent variations and modifications within the scope of the appended claims.
Claims (7)
1. A method of controlling an optical shutter of a laser, the laser comprising an internal control for controlling the laser by means of an internal control program and an external control for controlling the laser by means of control keys on a machine tool, the method comprising the steps of:
after the laser is switched to the internal control and before the optical shutter output is activated, the optical shutter output is closed, and the optical shutter signal is forbidden to be output;
activating an optical shutter output, wherein an internally controlled optical shutter control outputs an internally controlled optical shutter signal;
or after the laser is switched to external control and before the optical shutter output is activated, closing the optical shutter output and forbidding the optical shutter signal to be output;
the shutter output is activated and the externally controlled shutter control outputs an externally controlled shutter signal.
2. A method of controlling a shutter according to claim 1 wherein the step of activating the shutter output comprises:
restarting the internally controlled optical gate control, activating the optical gate output, and outputting an internal control optical gate signal by the internally controlled optical gate control;
or restarting the externally controlled shutter control, activating the shutter output, and outputting the externally controlled shutter signal by the externally controlled shutter control.
3. A method of controlling a shutter according to claim 2, further comprising the steps of:
activating an external control switching key and restarting internal control optical gate control;
or activating an externally controlled switching key to restart the externally controlled shutter control.
4. A shutter control method according to claim 2, wherein:
when the optical gate output is closed, the internally controlled optical gate control and the externally controlled optical gate control are closed at the same time, and after the internally controlled optical gate control is restarted and the optical gate output is activated, the externally controlled optical gate control is in a closed state;
alternatively, when the shutter output is closed, the internally controlled shutter control and the externally controlled shutter control are closed at the same time, and after the externally controlled shutter control is restarted and the shutter output is activated, the internally controlled shutter control is in the closed state.
5. An optical shutter control system for a laser, the laser comprising an internal control unit and an external control unit, the internal control unit controlling the laser via an internal control program, the external control unit controlling the laser via control keys on a machine tool, the optical shutter control system comprising:
the switching module switches the internal control unit and the external control unit and selects one control unit to control the laser;
the optical gate main control module is respectively connected with the switching module and the optical gate output end, and closes the optical gate output and prohibits the optical gate signal from being output after the switching module performs switching;
the internal optical gate control module is arranged in the internal control unit, and after the switching module is switched to the internal control unit, the internal optical gate control module requests the optical gate main control module to activate the optical gate output and outputs an internal optical gate signal to the optical gate output end;
and the external optical gate control module is arranged in the external control unit, and after the switching module is switched to the external control unit, the external optical gate control module requests the optical gate main control module to activate optical gate output and output an external optical gate signal to the optical gate output end.
6. A shutter control system according to claim 5, wherein: the optical gate control system also comprises an external control trigger effective module arranged in the external control unit, wherein the external control trigger effective module is connected with the optical gate main control module and requests the optical gate main control module to activate optical gate output after the internal optical gate control module or the external optical gate control module is restarted.
7. A shutter control system according to claim 5, wherein: the optical gate control system also comprises an alternative module, wherein the input end of the alternative module is respectively connected with the internal optical gate control module and the external optical gate control module, the output end of the alternative module is connected with the output end of the optical gate, and the control end of the alternative module is connected with the optical gate main control module; the optical gate main control module controls the alternative module to be communicated with the internal optical gate control module or the external optical gate control module.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1340721A (en) * | 2000-08-24 | 2002-03-20 | 中国科学院大气物理研究所 | Programmable laser trigger controller for multi-wavelength laser radar |
| CN101561667A (en) * | 2009-06-01 | 2009-10-21 | 燕山大学 | Device for controlling laser heating time with double optical shutters and controlling method thereof |
| CN106494101A (en) * | 2016-09-30 | 2017-03-15 | 大族激光科技产业集团股份有限公司 | A kind of CO2The control method of laser marking machine |
| WO2017124172A1 (en) * | 2016-01-21 | 2017-07-27 | Torul Avinash | Gps security device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0746742B2 (en) * | 1985-12-27 | 1995-05-17 | 株式会社井上ジャパックス研究所 | Laser processing machine |
| US7791781B2 (en) * | 2006-05-22 | 2010-09-07 | Lawrence Livermore National Security, Llc | Rapidly reconfigurable all-optical universal logic gate |
| CN101786203B (en) * | 2009-12-15 | 2012-11-21 | 深圳市大族激光科技股份有限公司 | Variable-power working device for laser, punching equipment and method thereof |
| CN203085963U (en) * | 2013-01-31 | 2013-07-24 | 华中科技大学 | Power source for transverse-flow CO2 laser |
| CN203191776U (en) * | 2013-04-19 | 2013-09-11 | 浙江工贸职业技术学院 | Numerical control machining laser cutting controller |
| US9640946B2 (en) * | 2013-06-06 | 2017-05-02 | Prima Electro North America | Electronic fail-safe laser shutter |
-
2017
- 2017-10-18 CN CN201710972610.1A patent/CN107565370B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1340721A (en) * | 2000-08-24 | 2002-03-20 | 中国科学院大气物理研究所 | Programmable laser trigger controller for multi-wavelength laser radar |
| CN101561667A (en) * | 2009-06-01 | 2009-10-21 | 燕山大学 | Device for controlling laser heating time with double optical shutters and controlling method thereof |
| WO2017124172A1 (en) * | 2016-01-21 | 2017-07-27 | Torul Avinash | Gps security device |
| CN106494101A (en) * | 2016-09-30 | 2017-03-15 | 大族激光科技产业集团股份有限公司 | A kind of CO2The control method of laser marking machine |
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