CN110543009A - Intelligent optical gate and method for detecting on-off of optical path - Google Patents
Intelligent optical gate and method for detecting on-off of optical path Download PDFInfo
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- CN110543009A CN110543009A CN201910766365.8A CN201910766365A CN110543009A CN 110543009 A CN110543009 A CN 110543009A CN 201910766365 A CN201910766365 A CN 201910766365A CN 110543009 A CN110543009 A CN 110543009A
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- path
- detection unit
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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
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
Abstract
the invention discloses an intelligent optical gate and a method for detecting the on-off of an optical path, belonging to the technical field of detection, wherein the intelligent optical gate comprises a light blocking unit, a gate shaft, a motor, a positioning unit and a position detection unit; one end of the light blocking unit is fixed on a light gate shaft, the light gate shaft is fixed on a motor, and the axial direction of the light gate shaft is approximately parallel to the light path; the positioning unit is fixed on the shutter shaft, and the position detection unit is positioned on one side of the positioning unit. The motor is adopted to drive the light blocking unit to rotate near the light path, and the position of the light blocking unit is monitored in real time by the position detection unit; the axial direction of the optical gate is approximately parallel to the optical path, so that the space required in the vertical direction of the optical path is reduced, and the problem that the optical gate is difficult to realize when the space in the vertical direction of the spatial optical path is small is solved; the size of the motor and the light blocking unit can be large or small, so that the design can be used for a large-size space light path and a micro space light path, and the light blocking unit has high applicability.
Description
Technical Field
the invention belongs to the technical field of detection, and particularly relates to an intelligent optical gate and a method for detecting the on-off of an optical path.
Background
A shutter is a device commonly used in a spatial optical path system, and is capable of cutting off an optical signal transmitted in a spatial optical path, and is commonly used to manage on or off of the spatial optical signal.
the current implementation method of the optical shutter is as follows: in the vertical direction of the space light path, a push rod motor drives the light blocking device to do telescopic motion in the space light path, so that the connection or disconnection of the light path is realized.
the conventional shutter principle is shown in figure 1. In the vertical direction of the spatial light path, a push rod motor is used for driving the light blocking device to do telescopic motion in the spatial light path, and when the push rod of the motor extends out, the light blocking device moves into the spatial light path as shown in figure 1(b), and the transmission of optical signals can be blocked; when the motor push rod retracts, the light blocking device moves out of the light path as shown in fig. 1(a), and the light path is restored to transmission.
The prior art has the following disadvantages:
In the traditional optical gate, because the push rod motor has a certain length and the shaft of the push rod motor has a certain stroke requirement in the process of motor extension, enough space is required in the vertical direction of a space light path to install the push rod motor and the light blocking device. When the space in the vertical direction of the spatial light path is small and the space in the parallel direction of the light path is large, the implementation method of the optical gate is not available.
disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides the intelligent optical gate and the method for detecting the on-off of the optical path, which have reasonable design, overcome the defects of the prior art and have good effect.
in order to achieve the purpose, the invention adopts the following technical scheme:
An intelligent optical gate comprises a light blocking unit, an optical gate shaft, a motor, a positioning unit and a position detection unit; one end of the light blocking unit is fixed on the optical gate shaft, the other end of the light blocking unit is a free end, the optical gate shaft is fixed on the motor, and the axial direction of the optical gate shaft is approximately parallel to the light path; the positioning unit is fixed on the shutter shaft, and the position detection unit is positioned on one side of the positioning unit.
preferably, the motor is a rotating electrical machine.
Preferably, the light brake shaft is a motor shaft of the motor or a motor shaft extension device installed on the motor shaft.
Preferably, the rotating electrical machine is a single-ended output shaft rotating electrical machine or a double-ended output shaft rotating electrical machine.
preferably, if the rotating motor is a single-end output shaft rotating motor, the positioning unit is fixed on the shutter shaft; if the rotating motor is a double-end output shaft rotating motor, the positioning unit is fixed at one end of the light gate shaft which is not connected with the light blocking unit.
Preferably, the position detection unit is an integrated circuit chip with a recess in itself or a detection circuit shaped like a recess.
Preferably, the light blocking unit is outside or inside the light path just as the positioning unit is rotated into or out of the groove on the position detection unit.
Preferably, the position detection unit is configured to monitor the position of the light blocking unit in real time.
Preferably, the light blocking unit is configured to block the optical signal transmitted in the optical path; when the light blocking unit rotates to the space light path, the light blocking unit can block the light signal transmitted in the light path; when the light blocking unit is rotated out of the spatial light path, the optical signal in the light path is restored to normal transmission.
In addition, the invention also provides a method for detecting the on-off of the optical path, which adopts the intelligent optical gate and specifically comprises the following steps:
Step 1: in the direction approximately parallel to the spatial light path, a rotating motor is adopted to drive the light blocking unit to rotate near the light path;
Step 2: when the relative positions of the light-blocking unit and the positioning unit are such that the light-blocking unit is out of the optical path when the positioning unit just rotates out of the position detecting unit in the clockwise direction as viewed from the shutter axis direction in which the light-blocking sheet is installed, there are two cases:
when the rotating motor rotates anticlockwise and the positioning unit just rotates into the position detection unit or the rotating motor rotates clockwise and the positioning unit just rotates out of the position detection unit, the position detection unit detects that the light blocking unit is outside the light path when the light path is in a path, and the position detection unit outputs a position signal to the main control chip when the light path is in the path;
When the rotating motor rotates anticlockwise, the positioning unit just rotates out of the position detection unit, or the rotating motor rotates clockwise, the positioning unit just rotates into the position detection unit, the position detection unit detects that the light blocking unit is in the light path, the light path is blocked at the moment, and the position detection unit outputs a position signal to the main control chip when the light blocking unit is blocked;
And step 3: when the relative positions of the light-blocking unit and the positioning unit are the following two cases, that is, when the positioning unit is just rotated into the position detection unit in the clockwise direction as viewed from the shutter axis direction on which the light-blocking sheet is mounted, the light-blocking unit is out of the optical path:
When the rotating motor rotates anticlockwise, the positioning unit just rotates out of the position detection unit, or the rotating motor rotates clockwise, the positioning unit just rotates into the position detection unit, the position detection unit detects that the light blocking unit is outside the light path, the light path is in a path at the moment, and the position detection unit outputs a position signal to the main control chip when the light path is in the path;
when the rotating motor rotates anticlockwise, the positioning unit just rotates into the position detection unit, or the rotating motor rotates clockwise, the positioning unit just rotates out of the position detection unit, the position detection unit detects that the light blocking unit is in the light path, the light path is blocked at the moment, and the position detection unit outputs a position signal to the main control chip.
the invention has the following beneficial technical effects:
The invention provides an intelligent optical gate and a method for detecting the on-off of a light path, wherein a motor is adopted to drive a light blocking unit to rotate near the light path in the direction approximately parallel to a space light path, and a position detection unit is used for monitoring the position of the light blocking unit in real time; when the light blocking unit rotates to the space light path, the light blocking unit can block the light signal transmitted in the light path; when the light blocking unit is rotated out of the spatial light path, the optical signal in the light path is recovered to be transmitted normally; according to the invention, the axial direction of the motor is approximately parallel to the light path, so that the space required in the vertical direction of the light path is reduced, and the problem that the light gate is difficult to realize when the space in the vertical direction of the space light path is small is solved; the size of the motor and the light blocking unit can be large or small, so that the design can be used for a large-size space light path and a micro space light path, and the light blocking unit has high applicability.
drawings
FIG. 1 is a schematic block diagram of a conventional shutter.
Fig. 2 is a schematic block diagram of the optical shutter using a single-end shaft-out motor, wherein fig. (a) and (b) are two state diagrams in one assembling condition, and fig. (c) and (d) are two state diagrams in another assembling condition.
fig. 3 is a schematic block diagram of a shutter employing a dual end-of-shaft motor.
fig. 4 is a schematic diagram of relative positions of the light blocking unit and the positioning unit, in which fig. (a) and (b) are schematic diagrams of two states in a case of one relative position, and fig. (c) and (d) are schematic diagrams of two states in a case of another relative position.
Wherein, 1-light blocking unit; 2-a shutter shaft; 3-a positioning unit; 4-position detection unit.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
Example 1:
As shown in fig. 2 and 3, an intelligent shutter includes a light blocking unit 1, a shutter shaft 2, a positioning unit 3, and a position detecting unit 4; one end of the light blocking unit 1 is fixed on a light gate shaft 2, the light gate shaft 2 is fixed on a motor, and the axial direction of the light gate shaft 2 is approximately parallel to the light path; the positioning unit 3 is fixed on the shutter shaft 2, and the position detecting unit 4 is located at one side of the positioning unit 3.
the relative positions of the light blocking unit 1 and the positioning unit 3 are fixed, so that the position detection unit 4 can know whether the light blocking unit 1 is in the space optical path or outside the space optical path only by detecting the current position of the positioning unit 3, and the intelligent control and monitoring of the optical gate are realized.
The motor is a rotating motor.
the rotating motor is a single-end output shaft rotating motor or a double-end output shaft rotating motor.
If the rotating motor is a single-end output shaft rotating motor, the positioning unit 3 is fixed on the shutter shaft 2; if the rotating motor is a double-end-shaft-out rotating motor, the positioning unit 3 is fixed at one end of the shutter shaft 2 which is not connected with the light blocking unit 1.
The position detection unit 4 is provided with a groove.
According to different relative positions of the light blocking unit and the positioning unit, when the positioning unit 3 just rotates into or out of the groove on the position detection unit 4, the light blocking unit 1 is outside the light path or inside the light path.
A position detection unit 4 configured to monitor the position of the light-blocking unit 1 in real time.
A light blocking unit 1 configured to block an optical signal transmitted in an optical path; when the light blocking unit 1 rotates to the space light path, the light signal transmitted in the light path is blocked; when the light blocking unit 1 is rotated out of the spatial light path, the optical signal in the light path is restored to normal transmission.
Example 2:
On the basis of the above embodiment 1, the present invention further provides a method for detecting on/off of an optical path, which specifically includes the following steps:
Step 1: in the direction approximately parallel to the spatial light path, a rotating motor is adopted to drive the light blocking unit to rotate near the light path;
Step 2: in the case where the relative positions of the light blocking unit and the positioning unit are as shown in fig. 4(a), (b):
When the rotating motor rotates anticlockwise, the positioning unit just rotates into the position detection unit, or when the rotating motor rotates clockwise and the positioning unit just rotates out of the position detection unit, the position detection unit detects that the light blocking unit is out of the light path, the light path is in the path at the moment, as shown in fig. 2(a), 2(c) and 3(a), and the relative positions of the light blocking unit and the positioning unit are as shown in fig. 4 (a); the position detection unit outputs a position signal to the main control chip;
When the rotating motor rotates counterclockwise, the positioning unit just rotates out of the position detection unit, or the rotating motor rotates clockwise, and the positioning unit just rotates into the position detection unit, the position detection unit detects that the light blocking unit is in the light path, and the light path is blocked at the moment, as shown in fig. 2(b), 2(d) and 3(b), and the relative positions of the light blocking unit and the positioning unit are shown in fig. 4 (b); the position detection unit outputs a position signal to the main control chip.
And step 3: in the case where the relative positions of the light blocking unit and the positioning unit are as shown in fig. 4(c), (d):
When the rotating motor rotates counterclockwise and the positioning unit just rotates out of the position detection unit or the rotating motor rotates clockwise and the positioning unit just rotates into the position detection unit, the position detection unit detects that the light blocking unit is out of the optical path when the positioning unit just rotates into the position detection unit, the optical path is in the path at the moment, as shown in fig. 2(a), 2(c) and 3(a), and the relative positions of the light blocking unit and the positioning unit are shown in fig. 4 (c); the position detection unit outputs a position signal to the main control chip;
when the rotating motor rotates anticlockwise, the positioning unit just rotates into the position detection unit, or the rotating motor rotates clockwise, and the positioning unit just rotates out of the position detection unit, the position detection unit detects that the light blocking unit is in the light path, the light path is blocked at the moment, as shown in fig. 2(b), 2(d) and 3(b), and the relative positions of the light blocking unit and the positioning unit are shown in fig. 4 (d); the position detection unit outputs a position signal to the main control chip.
it is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (10)
1. an intelligent light shutter, comprising: the device comprises a light blocking unit, a shutter shaft, a motor, a positioning unit and a position detection unit; one end of the light blocking unit is fixed on the optical gate shaft, the other end of the light blocking unit is a free end, the optical gate shaft is fixed on the motor, and the axial direction of the optical gate shaft is approximately parallel to the light path; the positioning unit is fixed on the shutter shaft, and the position detection unit is positioned on one side of the positioning unit.
2. an intelligent shutter according to claim 1, wherein: the motor is a rotating motor.
3. An intelligent shutter according to claim 1, wherein: the light brake shaft is a motor shaft of the motor or a motor shaft extension device arranged on the motor shaft.
4. an intelligent shutter according to claim 2, wherein: the rotating motor is a single-end output shaft rotating motor or a double-end output shaft rotating motor.
5. An intelligent shutter according to claim 4 wherein: if the rotating motor is a single-end output shaft rotating motor, the positioning unit is fixed on the optical brake shaft; if the rotating motor is a double-end output shaft rotating motor, the positioning unit is fixed at one end of the light gate shaft which is not connected with the light blocking unit.
6. An intelligent shutter according to claim 1, wherein: the position detection unit is an integrated circuit chip with a groove or a detection circuit with a shape similar to the groove.
7. an intelligent shutter according to claim 1, wherein: according to different relative position conditions of the light blocking unit and the positioning unit, when the positioning unit just rotates into or out of the groove on the position detection unit, the light blocking unit is outside the light path; or when the positioning unit just rotates into or out of the groove on the position detection unit, the light blocking unit is in the light path.
8. An intelligent shutter according to claim 1, wherein: a position detection unit configured to monitor a position of the light blocking unit in real time.
9. An intelligent shutter according to claim 1, wherein: a light blocking unit configured to block an optical signal transmitted in an optical path; when the light blocking unit rotates to the space light path, the light blocking unit can block the light signal transmitted in the light path; when the light blocking unit is rotated out of the spatial light path, the optical signal in the light path is restored to normal transmission.
10. A method for detecting the on-off of an optical path is characterized in that: an intelligent shutter as claimed in claim 1, comprising the steps of:
step 1: in the direction approximately parallel to the spatial light path, a rotating motor is adopted to drive the light blocking unit to rotate near the light path;
Step 2: when the relative positions of the light-blocking unit and the positioning unit are such that the light-blocking unit is out of the optical path when the positioning unit just rotates out of the position detecting unit in the clockwise direction as viewed from the shutter axis direction in which the light-blocking sheet is installed, there are two cases:
When the rotating motor rotates anticlockwise and the positioning unit just rotates into the position detection unit or the rotating motor rotates clockwise and the positioning unit just rotates out of the position detection unit, the position detection unit detects that the light blocking unit is outside the light path when the light path is in a path, and the position detection unit outputs a position signal to the main control chip when the light path is in the path;
when the rotating motor rotates anticlockwise, the positioning unit just rotates out of the position detection unit, or the rotating motor rotates clockwise, the positioning unit just rotates into the position detection unit, the position detection unit detects that the light blocking unit is in the light path, the light path is blocked at the moment, and the position detection unit outputs a position signal to the main control chip when the light blocking unit is blocked;
And step 3: when the relative positions of the light-blocking unit and the positioning unit are the following two cases, that is, when the positioning unit is just rotated into the position detection unit in the clockwise direction as viewed from the shutter axis direction on which the light-blocking sheet is mounted, the light-blocking unit is out of the optical path:
when the rotating motor rotates anticlockwise, the positioning unit just rotates out of the position detection unit, or the rotating motor rotates clockwise, the positioning unit just rotates into the position detection unit, the position detection unit detects that the light blocking unit is outside the light path, the light path is in a path at the moment, and the position detection unit outputs a position signal to the main control chip when the light path is in the path;
When the rotating motor rotates anticlockwise, the positioning unit just rotates into the position detection unit, or the rotating motor rotates clockwise, the positioning unit just rotates out of the position detection unit, the position detection unit detects that the light blocking unit is in the light path, the light path is blocked at the moment, and the position detection unit outputs a position signal to the main control chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766365.8A CN110543009A (en) | 2019-08-20 | 2019-08-20 | Intelligent optical gate and method for detecting on-off of optical path |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766365.8A CN110543009A (en) | 2019-08-20 | 2019-08-20 | Intelligent optical gate and method for detecting on-off of optical path |
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| CN110543009A true CN110543009A (en) | 2019-12-06 |
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| CN201910766365.8A Pending CN110543009A (en) | 2019-08-20 | 2019-08-20 | Intelligent optical gate and method for detecting on-off of optical path |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080231830A1 (en) * | 2007-03-22 | 2008-09-25 | Sokkia Co., Ltd. | Electric optical distance meter |
| CN101387749A (en) * | 2007-09-13 | 2009-03-18 | 张立国 | High speed response laser shutter |
| CN204731486U (en) * | 2014-11-26 | 2015-10-28 | 江苏中科四象激光科技有限公司 | The electronic shutter device of a kind of high power laser light |
| CN109396672A (en) * | 2018-11-30 | 2019-03-01 | 大族激光科技产业集团股份有限公司 | A kind of laser optical shutter apparatus and system |
-
2019
- 2019-08-20 CN CN201910766365.8A patent/CN110543009A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080231830A1 (en) * | 2007-03-22 | 2008-09-25 | Sokkia Co., Ltd. | Electric optical distance meter |
| CN101387749A (en) * | 2007-09-13 | 2009-03-18 | 张立国 | High speed response laser shutter |
| CN204731486U (en) * | 2014-11-26 | 2015-10-28 | 江苏中科四象激光科技有限公司 | The electronic shutter device of a kind of high power laser light |
| CN109396672A (en) * | 2018-11-30 | 2019-03-01 | 大族激光科技产业集团股份有限公司 | A kind of laser optical shutter apparatus and system |
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Application publication date: 20191206 |
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| RJ01 | Rejection of invention patent application after publication |