CN111735481A - Synchronous and rapid switching control system and control method for multi-path optical switch - Google Patents
Synchronous and rapid switching control system and control method for multi-path optical switch Download PDFInfo
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- CN111735481A CN111735481A CN202010683056.7A CN202010683056A CN111735481A CN 111735481 A CN111735481 A CN 111735481A CN 202010683056 A CN202010683056 A CN 202010683056A CN 111735481 A CN111735481 A CN 111735481A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/28—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
- G01D5/30—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
- G01D5/305—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells controlling the movement of a following part
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
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Abstract
The invention discloses a synchronous and rapid switching control system of a multi-path optical switch and a control method thereof, wherein the synchronous and rapid switching control system of the multi-path optical switch comprises a multi-axis motion controller, a plurality of optical switches, and an opening position sensor and a closing position sensor which are arranged on each optical switch, each optical switch comprises a driving motor and a baffle plate connected to a transmission shaft of the driving motor, the baffle plate is used for blocking laser beams, and the driving motor of each optical switch, the opening position sensor and the closing position sensor on each optical switch are connected with the multi-axis motion controller. The invention adopts a micro driving motor as a movement main body of the optical switch blocking piece, a position sensor is respectively arranged at the opening position and the closing position of each optical switch, and a high-speed multi-axis movement controller is adopted to accurately control the movement distance of each optical switch by high-speed pulses, so that the multi-path optical switches have the characteristics of quick response, accurate positioning and high synchronism.
Description
Technical Field
The invention relates to the field of optical detection, in particular to a synchronous and rapid switching control system and a control method for a multi-path optical switch.
Background
With the development of optical detection technology, the optical path in the optical design is more and more complex, the number of optical path switches is more and more, and the requirement on the response performance of the optical switch is higher. An optical switch control system is designed for synchronously controlling a multi-path optical switch, and an optical path switch taking a micro motor as a main body is designed, so that the motion requirement and the accurate positioning of the control system can be quickly responded.
The existing light path switch has the following defects: at present, a considerable part of optical path application adopts electromagnets as optical switches, and the defects are that the response time is long, and the service life is limited, so in a system for quickly switching the optical path, the electromagnets cannot meet the time response requirement in the system.
The existing light path switch control system has the following defects: the control mode of the optical switch of the electromagnet is simple, the switch of the optical switch is controlled through the universal input and output circuit, and the defect that the real-time state of the optical switch in the motion process cannot be monitored is overcome.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a synchronous and fast switching control system and a control method thereof for a multi-path optical switch, so that the multi-path optical switch has the characteristics of fast response, accurate positioning and high synchronism.
The technical scheme of the invention is as follows:
the utility model provides a synchronous fast switch over control system of multichannel photoswitch, including multiaxis motion control ware, a plurality of photoswitch and set up the position sensor on every photoswitch, every photoswitch on all be provided with two position sensor, two position sensor are opening position sensor and closing position sensor respectively, every photoswitch all includes driving motor and connects in the epaxial separation blade of driving motor transmission, the separation blade be used for blocking laser beam, the driving motor of every photoswitch on opening position sensor and closing position sensor all be connected with multiaxis motion control ware.
Open position sensor and closed position sensor be U type photoelectric sensor, photoswitch's separation blade be located when opening the position, photoswitch's separation blade part stretch into the U type inslot that opens position sensor, open position sensor and sense the separation blade signal, photoswitch's separation blade be located when closing the position, photoswitch's separation blade part stretch into the U type inslot that closes position sensor, close position sensor and sense the separation blade signal.
And the control end of each photoswitch driving motor is respectively connected with a pulse control pin corresponding to the multi-axis motion controller.
The signal output ends of the on position sensor and the off position sensor of each optical switch are integrated on the corresponding optical switch, and the signal output ends of the on position sensor and the off position sensor of each optical switch are respectively connected with the corresponding position feedback pins of the multi-axis motion controller.
The driving motor of each photoswitch adopts a micro stepping motor.
A control method of a synchronous and fast switching control system of a multi-path optical switch specifically comprises the following steps:
(1) when the multi-axis motion controller receives an opening instruction of one of the optical switches, the multi-axis motion controller firstly judges whether the associated optical switch is closed according to an output signal of the closing position sensor, when the associated optical switch is completely closed, the multi-axis motion controller sends a pulse control signal to a driving motor of the optical switch which currently receives an opening instruction, and the driving motor drives a baffle plate to rotate so as to open the optical switch;
(2) when the related optical switches are not completely closed, the multi-axis motion controller judges whether other optical switches are in motion or not according to the sent pulse control signals, when the other optical switches are judged to be in motion, the multi-axis motion controller judges whether the pulse control commands of the related optical switches are in half of the stroke after the motion according to the sent pulse control signals, when the related optical switches are in half of the stroke after the motion, the multi-axis motion controller sends the pulse control signals to a driving motor of the optical switch which currently receives an opening command, and the driving motor drives a baffle plate to rotate so as to open the optical switches;
(3) when the associated optical switches are not completely closed, the multi-axis motion controller judges whether the associated optical switches are in motion or not according to the sent pulse control signals, and when the associated optical switches are judged to be in the static state, the multi-axis motion controller does not send the pulse control signals to the driving motor of the optical switch which currently receives the opening command, and the optical switch keeps the closed state;
(4) when the associated optical switches are not completely closed, the multi-axis motion controller judges whether the associated optical switches are in motion or not according to the sent pulse control signals, when the associated optical switches are judged to be in motion, the multi-axis motion controller judges whether the pulse control commands of other optical switches are moved by half of the stroke or not according to the sent pulse control signals, when the pulse control commands of any one associated optical switch are not moved by half of the stroke, the multi-axis motion controller does not send the pulse control signals to the driving motor of the optical switch currently receiving the opening command, and the optical switch keeps a closed state;
(5) and (4) executing circularly according to the steps (1) to (4) until all the optical switches receiving the opening command complete opening actions.
The invention has the advantages that:
(1) the micro motor is used as a moving main body of the light switch blocking piece, the blocking piece is driven by the driving shaft to move rapidly, and no noise is emitted in the moving process;
(2) the multi-shaft motion controller is used for driving the micro motors to rotate at high speed, accurately controlling the motion distance of each optical switch by high-speed pulses, and monitoring the position information of each optical switch blocking piece in real time, so that synchronous and rapid motion among the multiple optical switches is realized;
(3) the invention adopts the photoelectric sensor to monitor the two state positions of the light switch, and can further confirm the action completion degree of the optical switch;
(4) the invention adopts the multi-axis motion controller to monitor the position information of each optical switch in real time, can carry out the opening and closing operation on each optical switch in advance, and does not need to wait for the next action after the optical switches are completely opened and closed, thereby greatly shortening the waiting time of the optical switch operation of the whole system.
Drawings
Fig. 1 is a schematic diagram of the structure of the synchronous fast switching control system of the multi-channel optical switch of the present invention.
FIG. 2 is a control circuit diagram of the multi-channel optical switch synchronous fast switching control system of the present invention, wherein A1 is a multi-axis motion controller, MOTOR 1-MOTORn are driving interfaces of micro stepping MOTORs, REF 0-REFn are interfaces of on position sensors and off position sensors of each optical switch, Shuuter 1-Shuutern are optical switches numbered 1-n in the system, Stepper is the micro stepping MOTOR of the optical switch, BK is a barrier, and Sensor is a U-type photoelectric Sensor.
Fig. 3 is a flow chart of a control method of the synchronous fast switching control system of the multi-channel optical switch of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a synchronous fast switching control system for a multi-path optical switch includes a multi-axis motion controller a1, a plurality of optical switches, and position sensors disposed on each optical switch, where each optical switch is integrated with two position sensors, the two position sensors are an on position sensor and an off position sensor, each optical switch includes a micro stepping motor Stepper and a block BK connected to a transmission shaft of the micro stepping motor, the block BK is used for blocking a laser beam, a control end of each optical switch Stepper is connected with a pulse control pin corresponding to the multi-axis motion controller a1, and signal output ends of the on position sensor and the off position sensor of each optical switch are connected with a position feedback pin corresponding to the multi-axis motion controller a 1.
The opening position Sensor and the closing position Sensor are U-shaped photoelectric sensors, when the separation blade BK of the optical switch is positioned at the opening position, the separation blade BK part of the optical switch extends into a U-shaped groove of the opening position Sensor, the opening position Sensor senses a separation blade signal, when the separation blade BK of the optical switch is positioned at the closing position, the separation blade BK part of the optical switch extends into a U-shaped groove of the closing position Sensor, and the closing position Sensor senses the separation blade signal.
Referring to fig. 3, a control method of a multi-channel optical switch synchronous fast switching control system specifically includes the following steps:
(1) when the multi-axis motion controller receives an opening instruction of one of the optical switches, the multi-axis motion controller firstly judges whether the associated optical switch is closed according to an output signal of the closing position sensor, when the associated optical switch is completely closed, the multi-axis motion controller sends a pulse control signal to a driving motor of the optical switch which currently receives an opening instruction, and the driving motor drives a baffle plate to rotate so as to open the optical switch;
(2) when the related optical switches are not completely closed, the multi-axis motion controller judges whether other optical switches are in motion or not according to the sent pulse control signals, when the other optical switches are judged to be in motion, the multi-axis motion controller judges whether the pulse control commands of the related optical switches are in half of the stroke after the motion according to the sent pulse control signals, when the related optical switches are in half of the stroke after the motion, the multi-axis motion controller sends the pulse control signals to a driving motor of the optical switch which currently receives an opening command, and the driving motor drives a baffle plate to rotate so as to open the optical switches;
(3) when the associated optical switches are not completely closed, the multi-axis motion controller judges whether the associated optical switches are in motion or not according to the sent pulse control signals, and when the associated optical switches are judged to be in the static state, the multi-axis motion controller does not send the pulse control signals to the driving motor of the optical switch which currently receives the opening command, and the optical switch keeps the closed state;
(4) when the associated optical switches are not completely closed, the multi-axis motion controller judges whether the associated optical switches are in motion or not according to the sent pulse control signals, when the associated optical switches are judged to be in motion, the multi-axis motion controller judges whether the pulse control commands of other optical switches are moved by half of the stroke or not according to the sent pulse control signals, when the pulse control commands of any one associated optical switch are not moved by half of the stroke, the multi-axis motion controller does not send the pulse control signals to the driving motor of the optical switch currently receiving the opening command, and the optical switch keeps a closed state;
(5) and (4) executing circularly according to the steps (1) to (4) until all the optical switches receiving the opening command complete opening actions.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a synchronous fast switch control system of multichannel photoswitch which characterized in that: including multiaxis motion control ware, a plurality of photoswitch and set up the position sensor on every photoswitch, every photoswitch on all be provided with two position sensor, two position sensor are opening position sensor and closing position sensor respectively, every photoswitch all including driving motor with connect in the epaxial separation blade of driving motor transmission, the separation blade be used for blocking laser beam, the driving motor of every photoswitch on opening position sensor and closing position sensor all be connected with multiaxis motion control ware.
2. The synchronous fast switching control system of claim 1, wherein: open position sensor and closed position sensor be U type photoelectric sensor, photoswitch's separation blade be located when opening the position, photoswitch's separation blade part stretch into the U type inslot that opens position sensor, open position sensor and sense the separation blade signal, photoswitch's separation blade be located when closing the position, photoswitch's separation blade part stretch into the U type inslot that closes position sensor, close position sensor and sense the separation blade signal.
3. The synchronous fast switching control system of claim 1, wherein: and the control end of each photoswitch driving motor is respectively connected with a pulse control pin corresponding to the multi-axis motion controller.
4. The synchronous fast switching control system of claim 1, wherein: the signal output ends of the on position sensor and the off position sensor of each optical switch are integrated on the corresponding optical switch, and the signal output ends of the on position sensor and the off position sensor of each optical switch are respectively connected with the corresponding position feedback pins of the multi-axis motion controller.
5. The synchronous fast switching control system of claim 1, wherein: the driving motor of each photoswitch adopts a micro stepping motor.
6. The control method of the synchronous fast switching control system of the multi-channel optical switch according to claim 1, characterized in that: the method specifically comprises the following steps:
(1) when the multi-axis motion controller receives an opening instruction of one of the optical switches, the multi-axis motion controller firstly judges whether the associated optical switch is closed according to an output signal of the closing position sensor, when the associated optical switch is completely closed, the multi-axis motion controller sends a pulse control signal to a driving motor of the optical switch which currently receives an opening instruction, and the driving motor drives a baffle plate to rotate so as to open the optical switch;
(2) when the related optical switches are not completely closed, the multi-axis motion controller judges whether other optical switches are in motion or not according to the sent pulse control signals, when the other optical switches are judged to be in motion, the multi-axis motion controller judges whether the pulse control commands of the related optical switches are in half of the stroke after the motion according to the sent pulse control signals, when the related optical switches are in half of the stroke after the motion, the multi-axis motion controller sends the pulse control signals to a driving motor of the optical switch which currently receives an opening command, and the driving motor drives a baffle plate to rotate so as to open the optical switches;
(3) when the associated optical switches are not completely closed, the multi-axis motion controller judges whether the associated optical switches are in motion or not according to the sent pulse control signals, and when the associated optical switches are judged to be in the static state, the multi-axis motion controller does not send the pulse control signals to the driving motor of the optical switch which currently receives the opening command, and the optical switch keeps the closed state;
(4) when the associated optical switches are not completely closed, the multi-axis motion controller judges whether the associated optical switches are in motion or not according to the sent pulse control signals, when the associated optical switches are judged to be in motion, the multi-axis motion controller judges whether the pulse control commands of other optical switches are moved by half of the stroke or not according to the sent pulse control signals, when the pulse control commands of any one associated optical switch are not moved by half of the stroke, the multi-axis motion controller does not send the pulse control signals to the driving motor of the optical switch currently receiving the opening command, and the optical switch keeps a closed state;
(5) and (4) executing circularly according to the steps (1) to (4) until all the optical switches receiving the opening command complete opening actions.
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| CN202010683056.7A CN111735481A (en) | 2020-07-15 | 2020-07-15 | Synchronous and rapid switching control system and control method for multi-path optical switch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787557A (en) * | 2020-12-29 | 2021-05-11 | 杭州微伽量子科技有限公司 | Driving method and system of stepping motor and storage medium |
| CN112821821A (en) * | 2020-12-29 | 2021-05-18 | 杭州微伽量子科技有限公司 | Light source device and light path switch thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112787557A (en) * | 2020-12-29 | 2021-05-11 | 杭州微伽量子科技有限公司 | Driving method and system of stepping motor and storage medium |
| CN112821821A (en) * | 2020-12-29 | 2021-05-18 | 杭州微伽量子科技有限公司 | Light source device and light path switch thereof |
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