CN108981564A - A kind of light pen vision target based on active principle of luminosity - Google Patents
A kind of light pen vision target based on active principle of luminosity Download PDFInfo
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- CN108981564A CN108981564A CN201810375569.4A CN201810375569A CN108981564A CN 108981564 A CN108981564 A CN 108981564A CN 201810375569 A CN201810375569 A CN 201810375569A CN 108981564 A CN108981564 A CN 108981564A
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- target
- lamp
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- vision
- vision target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The present invention discloses a kind of light pen vision target based on active principle of luminosity.This vision target mainly includes shell, diffuser plate, casing, extension rod, stylus, connecting plate, rear cover, microcontroller, condition prompting lamp, direction warning light, bluetooth module, left record button, right cancel button, master switch, 7.4V lithium battery, 850nm infraluminescence LED(IR1-IR7) and 12V lithium battery.In use, the stylus of target contacts testee, record button is pressed, visual apparatus carries out vision positioning by the infrared LED in target and calculates acquisition testee coordinate information, and the data of last measurement can be removed by pressing cancel button；While luminescence unit design of the casing in conjunction with diffuser plate is conducive to improve spot center image procossing precision, so that spot center coordinate by three coordinate measuring engine measurement, can improve the calibration and high-acruracy survey ability of vision target.
Description
Technical field
The invention belongs to technical field of vision detection, are related to a kind of light pen vision target based on active principle of luminosity.
Background technique
Light pen vision target is a kind of target following auxiliary of stereoscopic vision equipment.Light pen vision target is for solid
Visual apparatus target tracking, the function of high accuracy positioning.
Hand-held three-dimensional coordinates measurement can neatly measure the geometrical characteristic of workpiece in space.And required precision is high, system
Stability is high, particularly with complicated industrial environment, based on the light pen vision measurement target of active principle of luminosity hand-held
It is widely used in formula three-dimensional coordinates measurement equipment.
Currently, common hand-held three-dimensional coordinates measurement target is divided into point contact type and line-structured light is contactless.Light pen
Vision target is tracked using vision, is measured by the way of point contact type, and thermal stability is good, measurement accuracy is higher.Vision target
System calibrating need to guarantee that characteristic point can be by other while visual apparatus observes the optical characteristic point of uniform high quality
High precision apparatus such as three coordinate measuring machine measures, therefore the structure design of characteristic point is the difficult point of light pen vision target,
Furthermore the comfort level of target, light ease for use are also that structure designs the Important Problems that need to be considered.
Summary of the invention
It is an object of the invention to the lower problems for existing vision target calibration and tracking accuracy, provide one kind
Light pen vision target based on active principle of luminosity improves the detection accuracy and calibration essence of visual signature point from structure design
The features such as spending, while meeting ease for use.
In order to achieve the above object, a kind of the technical solution adopted by the present invention are as follows: light pen based on active principle of luminosity
Vision target mainly includes shell, diffuser plate, casing, extension rod, stylus, connecting plate, rear cover, microcontroller, condition prompting
Lamp, direction warning light, bluetooth module, left record button, right cancel button, master switch, 7.4V lithium battery, 850nm infraluminescence
) and 12V lithium battery LED(IR1-IR7.In use, the stylus of target contacts testee, record button is pressed, visual apparatus is logical
The infrared LED crossed in target carries out vision positioning and calculates acquisition testee coordinate information, and one can be removed by pressing cancel button
The data of secondary measurement；Luminescence unit design of the casing in conjunction with diffuser plate is conducive to improve the same of spot center image procossing precision
When, so that spot center coordinate by three coordinate measuring engine measurement, can improve the calibration and high-acruracy survey ability of vision target；
When visual apparatus tracks this target, host computer sends attitude parameter, the prompt of control direction to microcontroller by bluetooth module
The light on and off of lamp (upper lamp, lower lamp, left lamp, right lamp, middle lamp), it is right if the deflection angle in vision target to some direction is excessive
The direction warning light in direction is answered then to extinguish, to remind operator to correct the placing attitude of vision target.
Wherein, the luminescence unit of the diffuser plate and casing composition is the most crucial part of light pen vision target, if
Timing mainly considers casing structure cylindrical in shape, inner hollow, and bottom is connected by Flange-shaped Parts step surface and shell (1) end face, is convenient for
Improve positioning accuracy.It is circular through hole at the top of sleeve, diffuser plate is in step-like, and through-hole forms complete end at the top of insertion sleeve
Face.It is characterized in that, circular propagation plate is conducive to improve the luminous mass of infrared LED, improve in the round spot that visual apparatus acquires
Heart positioning accuracy；Meanwhile diffuser plate allows three coordinate measuring machine to measure round spot center with the coaxial coplanar design of casing
Position facilitates the high-precision calibrating of visual apparatus.
The luminous casing, it is further characterized in that: the design position of 7 luminescence units is in cross shape, and ten
The long distance between axles and short axle spacing of word differ, and design is conducive to hot spot in this way can match in single image, greatly reduce
The difficulty of images match improves the matched speed of light spot image and accuracy.
The shell of the light pen vision target, when design, considers the comfort level that operator holds, by hand-held grasping
Part is designed to arc shape.In addition, the width dimensions of shell portion of the handle are by measuring practical ordinary people's hand joint distance
It optimizes and obtains, more meet Human Engineering Principle, be conducive to alleviate the fatigue that operator's long-time operation equipment generates.
The circuit board is the structure that circuit connection is played in shell, and circuit board shape cutting is at consistent with housing cavity
Special-shaped circuit board, be easily installed and positioned.The connection of circuit board and shell relies on 6 location holes of enclosure interior, connection is simple,
Positioning is reliable, takes full advantage of the intracorporal small space of shell.Circuit board use two-sided structure, side for fix microcontroller,
The circuit units such as bluetooth module, 7.4V lithium battery, the other side is for fixing 7 infrared LEDs (IR1-IR7), 5 direction warning lights
The electronic component of the targets front panel such as (upper lamp, lower lamp, left lamp, right lamp, middle lamp) and 1 condition prompting lamp, improves structure
Compactedness.
The rear cover is to play the role of closing housing rear end in overall structure.Rear cover design in consider rear cover with
The alignment of shell end face, making target, appearance looks elegant is succinct on the whole.In addition, square hole is provided in rear cover, square hole shape and electricity
It is identical depending on the battery cover shape of remote controler, convenient for being directly installed to remote controller battery rear cover above, be conducive to optimize built-in lithium
The convenience of the replacement and charging of battery.
The present invention compared with prior art, have following obvious prominent substantive distinguishing features and significant technology into
Step: the luminescence unit of the light pen vision target, and can be by three-dimensional coordinates measurement while can be observed by vision system
Machine measurement is conducive to the stated accuracy for improving vision system；Seven infrared LEDs of the light pen vision target have special set
The position distribution of meter accelerates the identification of image matching algorithm；The light pen vision target shape is designed in arc surface, is grasped wide
Degree meets ergonomics, reduces the degree of fatigue of this target of long period of operation.
Detailed description of the invention
Fig. 1 is a kind of circuit diagram of the light pen vision target based on active principle of luminosity of the present invention, wherein (a) figure
For control section circuit diagram, (b) figure is infrared portions circuit diagram.
Fig. 2 is a kind of general shape structure chart of the light pen vision target based on active principle of luminosity of the present invention.
Fig. 3 is a kind of mechanical part internal view of the light pen vision target based on active principle of luminosity of the present invention.
Specific embodiment
The preferred embodiment of the present invention is further elaborated with reference to the accompanying drawing:
Real-time example one: referring to Fig. 1 ~ Fig. 3, the mechanical part based on the light pen vision target of active principle of luminosity includes:
Shell (1), diffuser plate (2), casing (3), extension rod (4), stylus (5), connecting plate (10), rear cover (11), circuit part includes:
Microcontroller (12), condition prompting lamp (18-1), direction warning light (18-2), bluetooth module (13), left record button (14), the right side
Cancel button (15), master switch (16), 7.4V lithium battery (17), 850nm infraluminescence LED(IR1-IR7) (20) and 12V lithium electricity
Pond (19).It is characterized by: shell (1) forms measuring unit through connecting plate (10) connection stylus (5), when measurement by it is hand-held this
Stylus contact target object is completed the measurement of butt contact coordinate by target；Infraluminescence LED (IR1-IR7) (20) and 12V lithium
Battery (19) connection composition infraluminescence partial circuit, powers on rear infraluminescence LED in state is always on, passes through diffuser plate (2)
Light spot image after light carries out dynamically track for visual apparatus；Microcontroller (12) connection status warning light (18-1), direction
Warning light (18-2), bluetooth module (13), left record button (14), right cancel button (15), master switch (16) and 7.4V lithium electricity
Pond (17) composition control partial circuit plays the purpose of auxiliary visual apparatus measurement；After master switch (16) closure, on control section
Electricity, condition prompting lamp (18-1) are lighted；When pressing left record button (14), condition prompting lamp (18-1) flashes 1 time, passes through simultaneously
Bluetooth module (13) sends instruction control upper computer software to upper PC machine and records one-shot measurement value；When by lower right cancel button
(15), condition prompting lamp (18-2) flashes 2 times, while sending instruction control host computer to upper PC machine by bluetooth module (13)
Software deletes a preceding measured value；When visual apparatus tracks this target, host computer passes through bluetooth module (13) to microcontroller
(12) attitude parameter is sent, direction warning light is controlled --- the light on and off of upper lamp, lower lamp, left lamp, right lamp, middle lamp (18-2), if
The deflection angle in vision target to some direction is excessive, and the direction warning light of corresponding direction then extinguishes, to remind operator to rectify
The placing attitude of positive vision target.
Embodiment two: this embodiment and real-time example one are essentially identical, and special feature is as follows: the light pen vision
The luminescence unit of target diffuser plate (2) and casing (3) composition: casing (3) structure cylindrical in shape, inner hollow, bottom is by Flange-shaped Parts
Step surface and shell (1) end face connect, convenient for improving positioning accuracy；It is circular through hole at the top of sleeve (3), diffuser plate (2) is in platform
Scalariform, insertion sleeve (3) top through-hole form complete end face；Circular propagation plate (2) is conducive to improve the luminous matter of infrared LED
Amount improves the round spot centralized positioning precision of visual apparatus acquisition；Meanwhile diffuser plate (2) makes with the coaxial coplanar design of casing (3)
The position at round spot center can be measured by obtaining three coordinate measuring machine, facilitate the high-precision calibrating of visual apparatus；Described seven are red
Outer luminous LED(IR1-IR7) the structure configuration of (20) is: there is the spatial position design of 7 luminescence units in cross shape,
And the long distance between axles of cross and short axle spacing differ, design is conducive to hot spot in this way can match in single image, drop significantly
The low difficulty of images match, improves the matched speed of light spot image and accuracy；The structure feature of the shell (1) is:
Hand-held grip portion is designed to arc shape, optimizes the comfort level of operator's handheld device；Meanwhile shell (1) hand-held part
The width dimensions divided are optimized by the practical ordinary people's hand joint distance of measurement and are obtained, Human Engineering Principle is more met,
The degree of fatigue of operator's long-time operation equipment can be reduced.
Claims (4)
1. a kind of light pen vision target based on active principle of luminosity, mechanical part includes: shell (1), diffuser plate (2), set
(3), extension rod (4), stylus (5), connecting plate (10), rear cover (11) are managed, circuit part includes: microcontroller (12), state mention
Show lamp (18-1), direction warning light (18-2), bluetooth module (13), left record button (14), right cancel button (15), master switch
(16), 7.4V lithium battery (17), 850nm infraluminescence LED(IR1-IR7) (20) and 12V lithium battery (19), it is characterised in that:
Shell (1) forms measuring unit through connecting plate (10) connection stylus (5), by holding this target for stylus contact target when measurement
Object completes the measurement of butt contact coordinate；It is red that infraluminescence LED (IR1-IR7) (20) connect composition with 12V lithium battery (19)
Luminous partial circuit outside powers on rear infraluminescence LED in state is always on, passes through the light spot image after diffuser plate (2) light and supply
Visual apparatus carries out dynamically track；Microcontroller (12) connection status warning light (18-1), direction warning light (18-2), bluetooth mould
Block (13), left record button (14), right cancel button (15), master switch (16) and 7.4V lithium battery (17) composition control part electricity
The purpose of auxiliary visual apparatus measurement is played on road；After master switch (16) closure, control section is powered on, condition prompting lamp (18-1)
It lights；When pressing left record button (14), condition prompting lamp (18-1) flashes 1 time, while by bluetooth module (13) to upper
PC machine sends instruction control upper computer software and records one-shot measurement value；When by lower right cancel button (15), condition prompting lamp (18-
2) it flashes 2 times, while sending one-shot measurement before instruction control upper computer software is deleted to upper PC machine by bluetooth module (13)
Value；When visual apparatus tracks this target, host computer sends attitude parameter, control to microcontroller (12) by bluetooth module (13)
Direction warning light processed --- the light on and off of upper lamp, lower lamp, left lamp, right lamp, middle lamp (18-2), if vision target is to some direction
Deflection angle it is excessive, the direction warning light of corresponding direction then extinguishes, with remind operator correct vision target placing attitude.
2. the light pen vision target according to claim 1 based on active principle of luminosity, it is characterised in that: the diffusion
The luminescence unit of plate (2) and casing (3) composition: casing (3) structure cylindrical in shape, inner hollow, bottom by Flange-shaped Parts step surface and
Shell (1) end face connects, convenient for improving positioning accuracy；It is circular through hole at the top of sleeve (3), diffuser plate (2) is in step-like, insertion
Through-hole forms complete end face at the top of sleeve (3)；Circular propagation plate (2) is conducive to improve the luminous mass of infrared LED, improves view
Feel the round spot centralized positioning precision of equipment acquisition；Meanwhile diffuser plate (2) with the coaxial coplanar design of casing (3) so that three coordinates
Measuring machine can measure the position at round spot center, facilitate the high-precision calibrating of visual apparatus.
3. the light pen vision target according to claim 2 based on active principle of luminosity, it is further characterized in that: it is described
Seven infraluminescence LED(IR1-IR7) (20) structure configuration be: have 7 luminescence units spatial position design in cross hand over
Pronged shape, and the long distance between axles of cross and short axle spacing differ, design is conducive to hot spot in this way can match in single image,
The difficulty for greatly reducing images match improves the matched speed of light spot image and accuracy.
4. the light pen vision target according to claim 1 based on active principle of luminosity, it is characterised in that: the shell
(1) structure feature is: hand-held grip portion being designed to arc shape, optimizes the comfort level of operator's handheld device；Together
When, the width dimensions of shell (1) portion of the handle are optimized by the practical ordinary people's hand joint distance of measurement to be obtained, is more met
Human Engineering Principle can reduce the degree of fatigue of operator's long-time operation equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375569.4A CN108981564A (en) | 2018-04-25 | 2018-04-25 | A kind of light pen vision target based on active principle of luminosity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375569.4A CN108981564A (en) | 2018-04-25 | 2018-04-25 | A kind of light pen vision target based on active principle of luminosity |
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| Publication Number | Publication Date |
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| CN108981564A true CN108981564A (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810375569.4A Pending CN108981564A (en) | 2018-04-25 | 2018-04-25 | A kind of light pen vision target based on active principle of luminosity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285756A (en) * | 2019-07-15 | 2019-09-27 | 烟台恩科智能装备有限公司 | Photo-electric automobile chassis measuring instrument |
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| CN106595483A (en) * | 2016-12-19 | 2017-04-26 | 华中科技大学无锡研究院 | Active light hand-held target and cooperation mark point identification method thereof |
| CN107741199A (en) * | 2017-11-09 | 2018-02-27 | 浙江温州沈海高速公路有限公司 | A kind of multidirectional target of 3 D laser scanning |
| US20180081027A1 (en) * | 2016-09-21 | 2018-03-22 | Pinhas Ben-Tzvi | Linear optical sensor arrays (losa) tracking system for active marker based 3d motion tracking |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150377604A1 (en) * | 2014-06-27 | 2015-12-31 | Faro Technologies, Inc. | Zoom camera assembly having integrated illuminator |
| CN204373648U (en) * | 2015-02-05 | 2015-06-03 | 郑州辰维科技股份有限公司 | A kind of outline orientation equipment for industrial photogrammetry system |
| CN104807403A (en) * | 2015-04-23 | 2015-07-29 | 上海大学 | Driving light measuring rod for size measurement of large workpiece |
| US20180081027A1 (en) * | 2016-09-21 | 2018-03-22 | Pinhas Ben-Tzvi | Linear optical sensor arrays (losa) tracking system for active marker based 3d motion tracking |
| CN106595483A (en) * | 2016-12-19 | 2017-04-26 | 华中科技大学无锡研究院 | Active light hand-held target and cooperation mark point identification method thereof |
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Application publication date: 20181211 |