CN105758302B - Coordinate Measuring Device Based on Machining Center - Google Patents
Coordinate Measuring Device Based on Machining Center Download PDFInfo
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- CN105758302B CN105758302B CN201510523872.0A CN201510523872A CN105758302B CN 105758302 B CN105758302 B CN 105758302B CN 201510523872 A CN201510523872 A CN 201510523872A CN 105758302 B CN105758302 B CN 105758302B
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Abstract
A coordinate measuring device based on a machining center is provided with a taper shank, a supporting plate is arranged at the bottom of the taper shank, a first subjective measuring device is fixed on the supporting plate, the first subjective measuring device is a built-in CCD digital camera telescope, a sight axis of the first subjective measuring device is called a first subjective measuring line, the first subjective measuring line is superposed with a central line of the taper shank, a positioning shaft capable of rotating around a self axial line is arranged on the supporting plate, the axial line of the positioning shaft is perpendicular to the first subjective measuring line in space, a first auxiliary observing device is fixed on the positioning shaft, the first auxiliary observing device is a laser, an optical axis of the first auxiliary observing device is called a first auxiliary observing line, the first auxiliary observing line is perpendicularly intersected with the axial line of the positioning shaft, the first subjective measuring line and the first auxiliary observing line are positioned on the same plane, and a coding disc is arranged on the supporting plate. The invention can meet the requirement of distance measurement precision, does not need to carry out complicated and time-consuming calibration in advance, has no relation with the speed of light in distance measurement, does not need to carry out measurement of temperature, air pressure and the like before use, does not need weather correction, and is convenient to operate.
Description
Technical field
The present invention relates to the coordinate measuring sets based on machining center.
Background technology
Machining center is the capital equipment for processing complex curve curved surface.To in part process to the certain of workpiece
Complex surface, critical surfaces measure, and need workpiece removing numerically-controlled machine tool, clamping again after measurement.This will undoubtedly increase
Clamping error.
Coordinate measuring set is widely used in research and production.Currently, non-contact measurement is quickly grown.Three
Horn cupping is common range measurement principle, and trigonometry is that beam of laser is irradiated on object, and diffusing reflection laser in part is by prism in light
It is imaged on electrical resistivity survey measurement equipment.Trigonometry application above have many positional parameter requirements, measuring apparatus calibration on it is very cumbersome and
And it is time-consuming, if a certain parameter can not be obtained accurately in system when actual measurement, measurement data will be made to generate error.When measuring apparatus has
When small variations, each parameter must all re-scale in system.See that the intelligence Sun Changku that admires writes perhaps,《3D reverse-engineerings》（China
Measure publishing house April the 1st edition in 2002）p16.
He Baoxi is edited, and the Yellow River water conservancy publishing house in August, 2005 publishes it《Total station survey technology》Chapter 2, the second section,
The range measurement principle of current total powerstation, mainly impulse method, ranging phase method are described, the Department of Electronics of corresponding complexity is required for
System.Impulse method ranging directly measures the time that the pulse that rangefinder is sent out is tested distance back and forth.It is military according to Ye Xiaoming, Ling Mozhu
Chinese university press publishes it in March, 2004《The total powerstation errors of principles》P8, even if the clock frequency for timing have it is atomic small
Error, also result in prodigious measurement error.For example clock frequency is 100MHz, even if having the frequency error of ± 1Hz, ranging
Error is also up to ± 1.5m.So impulse method measurement accuracy is low, it is mainly used for long-range low precision measure.Ranging phase method,
Principle be by measuring the phase change that continuous modulated signal generates back and forth on testing distance come the indirect determination propagation time,
To acquire propagation distance.Ranging phase method is related to complicated control and operation, such as measurement ruler conversion and control, light path converting
Control, dim light automatically control, and survey phase rhythm（Timing control）, the conversion of phase distance, coarse-fine ruler is apart from Linking operation etc.（See leaf
Know bright, Ling Mozhu, publishing house of Wuhan University publishes it in March, 2004《The total powerstation errors of principles》p15）.The electronic system of measurement
More than impulse method complexity.Thus it can lead to many problems.Ye Xiaoming, Ling Mozhu, publishing house of Wuhan University publish it in March, 2004
《The total powerstation errors of principles》The 3rd chapters of p42 are analyzed, for example the same frequency photoelectricity in circuit is harassed the period caused by signal and missed
Difference, inner quartz crystal oscillator are affected by temperature caused error.Li Guangyun, Li Zongchun are edited, Mapping Press 2011 1
Moon publication《Industrial measuring system principle and application》P134, caused by also referring to that practical range frequency and design frequency are inconsistent
Range error problem.
There are one problem is most important to range accuracy, no matter pulse ranging or phase ranging, range accuracy all takes
Certainly in the accurate measurement to the light velocity in air.And in practical measurement process, the light velocity is by feelings such as atmospheric temperature, humidity, air pressures
Condition influences, and needs to measure these meteorologic parameters in advance, and carry out relevant atmospheric correction.It is edited according to Li Zeqiu, Wuhan science and engineering
University press publishes it in July, 2012《Total station survey technology》P22, the atmospheric correction of total powerstation also with used in the total powerstation
The wavelength of ranging light wave is related.
Invention content
It is an object of the invention to propose a kind of accurate, the easy to operate measurement of coordinates dress based on machining center of measurement
It sets.
In order to achieve the above objectives, the present invention takes one of technical solution as follows：The present invention has taper shank, in the bottom of taper shank
Equipped with support plate, the main observation device of No.1 is fixed on support plate, the main observation device of No.1 is that an in-built CCD digital camera is looked in the distance
Mirror, collimation axis are known as No.1 subjectivity survey line, and No.1 subjectivity survey line is overlapped with the center line of taper shank, and being equipped on support plate can enclose
The locating shaft rotated around Pivot Point Center line, the axial line of locating shaft and No.1 subjectivity survey line are fixed on locating shaft at spatial vertical
It is a laser to have No.1 pair observation device, No.1 pair observation device, and optical axis is known as the No.1 pair line of observation, the No.1 pair line of observation
It intersects vertically with the axial line of locating shaft, No.1 subjectivity survey line and the No.1 pair line of observation are in same plane, and support plate is equipped with
For the coding disk of measurement and positioning axis rotation angle, locating shaft is by motor-driven rotation；Taper shank is inserted into the master of numerical control machining center
In axial cone hole, the main observation device of No.1 is directed at testee A points, drives No.1 pair observation device, until No.1 subjectivity is surveyed
CCD digital cameras built in device observe that the laser that No.1 pair observation device is irradiated on object shines on No.1 subjectivity survey line
Exit point, coding disk provide the value of the angle of rotation α of the No.1 pair line of observation, between the axial line and No.1 subjectivity survey line of locating shaft away from
It is known from L, according to trigonometric function relationship, obtains the value of the axial line of locating shaft and the spacing H of the measured point, further according to fixed
The posture of distance h and main shaft of the axial line of position axis apart from support plate bottom surface, determine the coordinate of measured point.
In order to achieve the above objectives, the present invention takes the two as follows of technical solution：The present invention has taper shank, in the bottom of taper shank
Equipped with support plate, No. two main observation devices are fixed on support plate, No. two main observation devices are a laser, and optical axis is known as No. two
Subjective survey line, No. two subjective surveys line are overlapped with the center line of taper shank, and Pivot Point Center line rotation can be surrounded by being equipped on support plate
Locating shaft, the subjective surveys line of the axial line of locating shaft and No. two are fixed with No. two secondary observation devices at spatial vertical on locating shaft, and two
Number secondary observation device is an in-built CCD digital camera telescope, and collimation axis is known as No. two secondary lines of observation, No. two secondary lines of observation with
The axial line of locating shaft intersects vertically, and No. two subjective surveys line and No. two secondary lines of observation are in same plane, and support plate, which is equipped with, to be used
In the coding disk of measurement and positioning axis rotation angle, locating shaft is by motor-driven rotation；Taper shank is inserted into the master of numerical control machining center
In axial cone hole, No. two main observation devices are directed at testee A points, drive No. two secondary observation devices, when No. two secondary observation dresses
It sets built-in CCD digital cameras and observes that the laser that No. two main observation devices are irradiated on object A shines on No. two secondary lines of observation
Exit point, coding disk provide the value of the angle of rotation α of No. two secondary lines of observation, between the axial line of locating shaft and No. two subjective surveys line away from
It is known from L, according to trigonometric function relationship, obtains the value of the axial line of locating shaft and the spacing H of the measured point, further according to fixed
The posture of distance h and main shaft of the axial line of position axis apart from support plate bottom surface, determine the coordinate of measured point.
In order to achieve the above objectives, the present invention takes the three as follows of technical solution：The present invention has taper shank, in the bottom of taper shank
Equipped with support plate, No. three main observation devices are fixed on support plate, No. three main observation devices are a laser, and optical axis is known as No. three
Subjective survey line；No. three subjective surveys line are overlapped with the center line of taper shank, and Pivot Point Center line rotation can be surrounded by being equipped on support plate
Locating shaft, the subjective surveys line of the axial line of locating shaft and No. three are fixed with No. three secondary observation devices at spatial vertical on locating shaft, and three
Number secondary observation device is a laser, and optical axis is known as No. three secondary lines of observation, and the axial line of No. three secondary lines of observation and locating shaft hangs down
Straight intersection, No. three subjective surveys line and No. three secondary lines of observation are in same plane, and support plate is equipped with CCD digital cameras and for surveying
The coding disk of locating shaft rotation angle is measured, locating shaft is by motor-driven rotation；Taper shank is inserted into the spindle taper hole of numerical control machining center
It is interior, No. three main observation devices are directed at testee A points, No. three secondary observation devices is driven, is only seen when on CCD digital cameras
An illuminated laser spot is measured, illustrates that No. three main observation devices are radiated at the laser point on testee A and No. three secondary observation dresses
It sets the laser point being radiated on testee A to overlap, coding disk provides the value of the angle of rotation α of No. three secondary lines of observation, locating shaft
The distance between the subjective survey line of axial line and No. three L is known, according to trigonometric function relationship, obtain the axial line of locating shaft with
The value of the spacing H of the measured point, further according to the posture of distance h and main shaft of the axial line apart from support plate bottom surface of locating shaft,
Determine the coordinate of measured point.
The advantage of the invention is that：The present invention can be directly used in ranging, can meet range accuracy requirement, without carrying out in advance
Cumbersome time-consuming calibration, and ranging of the present invention is unrelated with the light velocity, therefore before use, without into measurements such as trip temperature, air pressures, it is not necessarily to gas
It is easy to operate as correction；The construction of electronic section of the present invention is relatively easy, and production scene is suitble to use.
Description of the drawings
Fig. 1 is 1 schematic diagram of embodiment.
Fig. 2 is 2 schematic diagram of embodiment.
Fig. 3 is 3 schematic diagram of embodiment.
Specific implementation mode
Embodiment 1
See that Fig. 1, the present embodiment have taper shank 1, is equipped with support plate 2 in the bottom of taper shank 1, No.1 master is fixed on support plate 2
Observation device 6-1, the main observation device 6-1 of No.1 are an in-built CCD digital camera telescope, and collimation axis is known as the survey of No.1 subjectivity
Line 6-1a, No.1 subjectivity survey line 6-1a are overlapped with the center line 1a of taper shank 1, and Pivot Point Center line can be surrounded by being equipped on support plate 2
The locating shaft 4 of rotation, the axial line 4a and No.1 subjectivity survey line 6-1a of locating shaft 4 are fixed with one at spatial vertical on locating shaft 4
Number secondary observation device 7-1, No.1 pair observation device 7-1 is a laser, and optical axis is known as No.1 pair line of observation 7-1a, No.1 pair
Line of observation 7-1a and the axial line 4a of locating shaft 4 intersect vertically, and No.1 subjectivity survey line 6-1a and No.1 pair line of observation 7-1a are in
Same plane, support plate 2 are equipped with the coding disk 5 for 4 rotation angle of measurement and positioning axis, and locating shaft 4 is by motor-driven rotation.
The present embodiment also has power supply, signal processing apparatus etc..
The taper shank 1 of the present apparatus is inserted into the spindle taper hole of numerical control machining center, the main observation device 6-1 of No.1 is directed at quilt
Survey object A points, then No.1 pair observation device 7-1 electric drives, until the CCD numbers built in the main observation device 6-1 of No.1
Camera observes that No.1 pair observation device 7-1 is irradiated to the illuminated laser spot on object on No.1 subjectivity survey line 6-1a, coding
Disk 5 provides the value of the angle of rotation α of No.1 pair line of observation 7-1a, between the axial line 3a and No.1 subjectivity survey line 6-1a of locating shaft 4
Distance L be known, according to trigonometric function relationship, obtain the value of the axial line 3a of locating shaft 4 and the spacing H of the measured point,
Further according to the posture of distance hs and main shaft of the axial line 4a apart from 2 bottom surface of support plate of locating shaft 4, the coordinate of measured point is determined.
Embodiment 2
See that Fig. 2, the present embodiment have taper shank 1, is equipped with support plate 2 in the bottom of taper shank 1, No. two masters are fixed on support plate 2
Observation device 6-2, No. two main observation device 6-2 are a laser, and optical axis is known as No. two subjective survey line 6-2a, No. two subjective surveys
Line 6-2a is overlapped with the center line 1a of taper shank 1, and the locating shaft 4 that can surround Pivot Point Center line rotation, positioning are equipped on support plate 2
The axial line 4a of axis 4 and No. two subjectivity survey line 6-2a is fixed with No. two secondary observation device 7-2 at spatial vertical on locating shaft 4, and two
Number secondary observation device 7-2 is an in-built CCD digital camera telescope, and collimation axis is known as No. two secondary line of observation 7-2a, No. two pairs
Line of observation 7-2a and the axial line 4a of locating shaft 4 intersect vertically, and No. two subjectivity survey line 6-2a and No. two pair line of observation 7-2a are in
Same plane, support plate 2 are equipped with the coding disk 5 for 4 rotation angle of measurement and positioning axis, and locating shaft 4 is by motor-driven rotation.
The present embodiment also has power supply, signal processing apparatus etc..
The taper shank 1 of the present apparatus is inserted into the spindle taper hole of numerical control machining center, No. two main observation device 6-2 are directed at quilt
Object A points are surveyed, then No. two secondary observation device 7-2 electric drives, until the CCD numbers built in No. two secondary observation device 7-2
Camera observes that No. two main observation device 6-2 are irradiated to the illuminated laser spot on object A on No. two secondary line of observation 6-2a, encodes
Disk 5 provides the value of the angle of rotation α of No. two secondary line of observation 7-2a, between the axial line 3a of locating shaft 4 and No. two subjective survey line 6-2a
Distance L be known, according to trigonometric function relationship, obtain the value of the axial line 3a of locating shaft 4 and the spacing H of the measured point,
Further according to the posture of distance hs and main shaft of the axial line 4a apart from 2 bottom surface of support plate of locating shaft 4, the coordinate of measured point is determined.
Embodiment 3
See that Fig. 3, the present embodiment have taper shank 1, is equipped with support plate 2 in the bottom of taper shank 1, No. three masters are fixed on support plate 2
Observation device 6-3, No. three main observation device 6-3 are a laser, and optical axis is known as No. three subjective survey line 6-3a, No. three subjective surveys
Line 6-3a is overlapped with the center line 1a of taper shank 1, and the locating shaft 4 that can surround Pivot Point Center line rotation, positioning are equipped on support plate 2
The axial line 4a of axis 4 and No. three subjectivity survey line 6-3a is fixed with No. three secondary observation device 7-3 at spatial vertical on locating shaft 4, and three
Number secondary observation device 7-3 is a laser, and optical axis is known as No. three pair line of observation 7-3a, No. three pair line of observation 7-3a and locating shaft
4 axial line 4a intersects vertically, and No. three subjectivity survey line 6-3a and No. three pair line of observation 7-3a are in same plane, on support plate 2
Coding disk 5 equipped with CCD digital cameras 3 and for 4 rotation angle of measurement and positioning axis, locating shaft 4 is by motor-driven rotation.
The present embodiment also has power supply, signal processing apparatus etc..
The taper shank 1 of the present apparatus is inserted into the spindle taper hole of numerical control machining center, No. three main observation device 6-3 are directed at quilt
Object A points are surveyed, then No. three secondary observation device 7-3 electric drives, until only observing that one is swashed on CCD digital cameras 8
Illumination exit point illustrates that No. three main observation device 6-3 are radiated at the laser point on testee A and No. three secondary observation device 7-3 shine
The laser point penetrated on testee A overlaps, and coding disk 5 provides the value of the angle of rotation α of No. three secondary line of observation 7-3a, locating shaft 4
Axial line 3a and the distance between No. three subjective survey line 6-3a L be known, according to trigonometric function relationship, obtain locating shaft 4
Axial line 3a and the measured point spacing H value, further according to distance hs of the axial line 4a apart from 2 bottom surface of support plate of locating shaft 4
And the posture of main shaft, determine the coordinate of measured point.
In-built CCD digital camera telescope is arrived involved in above-described embodiment, it is seen that He Baoxi is edited, the Yellow River water conservancy publishing house
In August, 2005 publishes it《Total station survey technology》Chapter 2.See also plum text victory, Yang Hongzhu, publishing house of Wuhan University 2011
November publishes it《Robot measurement is developed and application》2nd chapter.
Claims (3)
1. a kind of coordinate measuring set based on machining center, it is characterised in that：With taper shank（1）, in taper shank（1）Bottom set
There is support plate（2）, support plate（2）The upper main observation device of fixed No.1（6-1）, the main observation device of No.1（6-1）For an in-built CCD
Digital camera telescope, collimation axis are known as No.1 subjectivity survey line（6-1a）, No.1 subjectivity survey line（6-1a）With taper shank（1）In
Heart line（1a）It overlaps, in support plate（2）The locating shaft of Pivot Point Center line rotation can be surrounded by being equipped with（4）, locating shaft（4）Axle center
Line（4a）With No.1 subjectivity survey line（6-1a）At spatial vertical, locating shaft（4）On be fixed with No.1 pair observation device（7-1）, one
Number secondary observation device（7-1）For a laser, optical axis is known as the No.1 pair line of observation（7-1a）, the No.1 pair line of observation（7-1a）With
Locating shaft（4）Axial line（4a）It intersects vertically, No.1 subjectivity survey line（6-1a）With the No.1 pair line of observation（7-1a）In same
Plane, support plate（2）It is equipped with and is used for measurement and positioning axis（4）The coding disk of rotation angle（5）, locating shaft（4）It is driven by motor
Rotation；Taper shank（1）It is inserted into the spindle taper hole of numerical control machining center, by the main observation device of No.1（6-1）It is directed at testee A
Point drives No.1 pair observation device（7-1）, until the main observation device of No.1（6-1）Built-in CCD digital cameras are in No.1 subjectivity
Survey line（6-1a）On observe No.1 pair observation device（7-1）The illuminated laser spot being irradiated on object, coding disk（5）Provide one
Number secondary line of observation（7-1a）Angle of rotation α value, locating shaft（4）Axial line（3a）With No.1 subjectivity survey line（6-1a）Between
Distance L is known, according to trigonometric function relationship, obtains locating shaft（4）Axial line（3a）With the spacing H's of the measured point
Value, further according to locating shaft（4）Axial line（4a）Apart from support plate（2）The distance h of bottom surface and the posture of main shaft determine tested
The coordinate of point.
2. a kind of coordinate measuring set based on machining center, it is characterised in that：With taper shank（1）, in taper shank（1）Bottom set
There is support plate（2）, support plate（2）On fix No. two main observation devices（6-2）, No. two main observation devices（6-2）For a laser,
Its optical axis is known as No. two subjective surveys line（6-2a）, No. two subjective surveys line（6-2a）With taper shank（1）Center line（1a）It overlaps, is propping up
Board（2）The locating shaft of Pivot Point Center line rotation can be surrounded by being equipped with（4）, locating shaft（4）Axial line（4a）With No. two subjectivities
Survey line（6-2a）At spatial vertical, locating shaft（4）On be fixed with No. two secondary observation devices（7-2）, No. two secondary observation devices（7-2）
For an in-built CCD digital camera telescope, collimation axis is known as No. two secondary lines of observation（7-2a）, No. two secondary lines of observation（7-2a）With
Locating shaft（4）Axial line（4a）It intersects vertically, No. two subjective surveys line（6-2a）With No. two secondary lines of observation（7-2a）In same
Plane, support plate（2）It is equipped with and is used for measurement and positioning axis（4）The coding disk of rotation angle（5）, locating shaft（4）It is driven by motor
Rotation；Taper shank（1）It is inserted into the spindle taper hole of numerical control machining center, by No. two main observation devices（6-2）It is directed at testee A
Point drives No. two secondary observation devices（7-2）, when No. two secondary observation devices（7-2）Built-in CCD digital cameras are in No. two secondary observations
Line（6-2a）On observe No. two main observation devices（6-2）The illuminated laser spot being irradiated on object A, coding disk（5）Provide two
Number secondary line of observation（7-2a）Angle of rotation α value, locating shaft（4）Axial line（3a）With No. two subjective surveys line（6-2a）Between
Distance L is known, according to trigonometric function relationship, obtains locating shaft（4）Axial line（3a）With the spacing H's of the measured point
Value, further according to locating shaft（4）Axial line（4a）Apart from support plate（2）The distance h of bottom surface and the posture of main shaft determine tested
The coordinate of point.
3. a kind of coordinate measuring set based on machining center, it is characterised in that：With taper shank（1）, in taper shank（1）Bottom set
There is support plate（2）, support plate（2）On fix No. three main observation devices（6-3）, No. three main observation devices（6-3）For a laser,
Its optical axis is known as No. three subjective surveys line（6-3a）, No. three subjective surveys line（6-3a）With taper shank（1）Center line（1a）It overlaps, is propping up
Board（2）The locating shaft of Pivot Point Center line rotation can be surrounded by being equipped with（4）, locating shaft（4）Axial line（4a）With No. three subjectivities
Survey line（6-3a）At spatial vertical, locating shaft（4）On be fixed with No. three secondary observation devices（7-3）, No. three secondary observation devices（7-3）
For a laser, optical axis is known as No. three secondary lines of observation（7-3a）, No. three secondary lines of observation（7-3a）With locating shaft（4）Axial line
（4a）It intersects vertically, No. three subjective surveys line（6-3a）With No. three secondary lines of observation（7-3a）In same plane, support plate（2）On set
There are CCD digital cameras（3）With for measurement and positioning axis（4）The coding disk of rotation angle（5）, locating shaft（4）Turned by motor driving
It is dynamic；Taper shank（1）It is inserted into the spindle taper hole of numerical control machining center, by No. three main observation devices（6-3）It is directed at testee A
Point drives No. three secondary observation devices（7-3）, when in CCD digital cameras（8）On only observe an illuminated laser spot, illustrate three
Number main observation device（6-3）The laser point being radiated on testee A and No. three secondary observation devices（7-3）It is radiated at testee
Laser point on A overlaps, coding disk（5）Provide No. three secondary lines of observation（7-3a）Angle of rotation α value, locating shaft（4）Axle center
Line（3a）With No. three subjective surveys line（6-3a）The distance between L be known, according to trigonometric function relationship, obtain locating shaft（4）
Axial line（3a）With the value of the spacing H of the measured point, further according to locating shaft（4）Axial line（4a）Apart from support plate（2）Bottom
The distance h in face and the posture of main shaft, determine the coordinate of measured point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523872.0A CN105758302B (en) | 2015-08-24 | 2015-08-24 | Coordinate Measuring Device Based on Machining Center |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523872.0A CN105758302B (en) | 2015-08-24 | 2015-08-24 | Coordinate Measuring Device Based on Machining Center |
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| Publication Number | Publication Date |
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| CN105758302A CN105758302A (en) | 2016-07-13 |
| CN105758302B true CN105758302B (en) | 2018-07-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2489303Y (en) * | 2001-07-18 | 2002-05-01 | 叶恩华 | Trigonometric function rangefinder |
| CN2619238Y (en) * | 2003-05-21 | 2004-06-02 | 逄锦伦 | High precision distance detector |
| CN202057325U (en) * | 2011-04-28 | 2011-11-30 | 长春工业大学 | Distance meter with two test lenses |
| CN104075688A (en) * | 2013-03-29 | 2014-10-01 | 中原工学院 | Distance measurement method of binocular stereoscopic gazing monitoring system |
| CN204142253U (en) * | 2014-07-11 | 2015-02-04 | 刘雁春 | Duplex measurement instrument |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8943701B2 (en) * | 2010-06-28 | 2015-02-03 | Trimble Navigation Limited | Automated layout and point transfer system |
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2015
- 2015-08-24 CN CN201510523872.0A patent/CN105758302B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2489303Y (en) * | 2001-07-18 | 2002-05-01 | 叶恩华 | Trigonometric function rangefinder |
| CN2619238Y (en) * | 2003-05-21 | 2004-06-02 | 逄锦伦 | High precision distance detector |
| CN202057325U (en) * | 2011-04-28 | 2011-11-30 | 长春工业大学 | Distance meter with two test lenses |
| CN104075688A (en) * | 2013-03-29 | 2014-10-01 | 中原工学院 | Distance measurement method of binocular stereoscopic gazing monitoring system |
| CN204142253U (en) * | 2014-07-11 | 2015-02-04 | 刘雁春 | Duplex measurement instrument |
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| CN105758302A (en) | 2016-07-13 |
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