CN103616662A - Transmitting base station capable of being reversely arranged at top for angle intersection measurement - Google Patents

Transmitting base station capable of being reversely arranged at top for angle intersection measurement Download PDF

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Publication number
CN103616662A
CN103616662A CN201310554287.8A CN201310554287A CN103616662A CN 103616662 A CN103616662 A CN 103616662A CN 201310554287 A CN201310554287 A CN 201310554287A CN 103616662 A CN103616662 A CN 103616662A
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CN
China
Prior art keywords
base station
transmitting base
measurement
turntable
fixed
Prior art date
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Pending
Application number
CN201310554287.8A
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Chinese (zh)
Inventor
邾继贵
任永杰
杨凌辉
韩延东
薛斌
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Tianjin University
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Tianjin University
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Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201310554287.8A priority Critical patent/CN103616662A/en
Publication of CN103616662A publication Critical patent/CN103616662A/en
Priority to PCT/CN2014/074057 priority patent/WO2015066992A1/en
Pending legal-status Critical Current

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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
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/16—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using electromagnetic waves other than radio waves

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention belongs to the technical field of industrial field large-size three-dimensional coordinate measurement and relates to a transmitting base station capable of being reversely arranged at the top for angle intersection measurement. The transmitting base station capable of being reversely arranged at the top for angle intersection measurement comprises a fixing support, a reversely-arranged fastening mechanism and a rotary platform. A rotary shaft is connected with the reversely-arranged fastening mechanism through a bearing. The rotary platform driven by a direct-current motor is fixed to the lower portion of the rotary shaft. A coded disc is connected to a main shaft of the motor. At least two lasers used for transmitting scanning light are fixed downwards to the bottom of the rotary platform. The light plane of each laser obliquely intersects with the rotary shaft, so that the conic vertex angle of a measurement blind zone ranges from 25 degrees to 35 degrees. A synchronization pulse laser is fixed to the fixing support. Every turn the rotary platform rotates, the synchronization pulse laser is triggered to conduct synchronization pulse output once when the rotary platform passes through a zero position of the coded disc. According to the transmitting base station capable of being reversely arranged at the top for angle intersection measurement, the adaptability and the precision of a whole space measurement system can be improved.

Description

A kind of pushed up dress for angle intersection measurement is inverted transmitting base station
Affiliated technical field
The invention belongs to industry spot large scale three-dimensional coordinate measurement technical field, relate to a kind of transmitting base station of angle intersection measurement.
Background technology
The 3 D Coordinate Measuring System that work space measurement and positioning system (workspace Measuring Position System) is a kind of full-automation, multi-task parallel processing, high precision, real-time is high.Be similar to the formation of GPS (GPS), this system mainly comprises transmitting base station and receiver.Transmitting base station is arranged in commercial measurement scene, forms area measure field, and the receiver in this measurement field can be realized the measurement to self three-dimensional coordinate.Its ultimate principle is many plane restrictions positioning principle, and each transmitting base station provides two rotary laser planes, and n transmitting base station can provide 2n laser plane; The time interval between signal when the synchronizable optical signal that receiver perception transmitting base station sends when the initial position of each revolution and certain laser plane rotate to receiver position, obtain this plane and from the initial position of each revolution, rotate to the angle of receiver position, similarly, receiver can other planes of perception rotates to the angle of its position from initial position weekly, like this, in space, a plurality of planes, with regard to intersection on receiver this point, obtain the locus coordinate of this receiver by resolving equation.
Transmitting base station in this measuring system produces by machinery and optical instrument the optical plane rotating around stationary shaft, and surrounding space is scanned.The receiver that light activated element is housed during measurement is installed in needs the target location measured, when measuring scan light signal and forward receiver to from predetermined initial position by the method for timing the scan angle of process.The scan light plane transmitting base station when initial position of usining sends synchronizable optical pulse as the synchronizing signal of angle measurement time zero to receiver, when the inswept receiver of scan light plane photosensitive area, produces scanning pulse signal as receiver timing end point signal.Receiver by measure time interval between synchronizing signal and sweep signal can calculate scan light signal from initial position to receiver the scan angle of process.
Generally, transmitting base station is installed by column at ground certain altitude, and carries out optoelectronic scanning to all-round 360 degree, measures, but exist a lot of not enough thereby realize:
(1), in actual application, because transmitting base station is arranged in ground, when measuring, due to reasons such as personnel, surrounding devices, cause and block;
(2) due to the variation of plant area's operating mode, need the mobile transmitting base station of not timing, while reusing, must recalibrate, thereby increase Measuring Time;
(3) land cable is too much, more outstanding when transmitting base station number is many, affects the trafficability characteristic of all the other equipment;
(4) shafting vibration that shaft coupling transmission causes, makes to scan angle measurement accuracy and reduces.
Summary of the invention
The object of the invention is to overcome the above-mentioned deficiency of prior art, a kind of transmitting base station is provided, thereby solve the trafficability characteristic that affects all the other equipment when cloth station is installed on ground, at some, measure occasion and exist and block and the problem such as frequent calibration, improve adaptability and the accuracy of whole space measurement system, for measurement and the demarcation of measured point, space provides reliable hardware supported.In shafting design, adopt direct current generator direct-drive simultaneously, reduce vibrative intermediate link, speed of mainshaft balance.Technical scheme of the present invention is as follows:
A kind of pushed up dress for angle intersection measurement is inverted transmitting base station, comprise fixed support (4), upside-down mounting tightening mechanism (5) and turntable (3), turning axle (11) is connected with upside-down mounting tightening mechanism (5) by bearing (7), the bottom of turning axle is fixed with the turntable (3) that driven by direct current generator, on electric machine main shaft, be connected with code-disc (10), in the bottom of turntable (3), be fixed with at least two laser instruments for emission scan light (1) down, oblique between the optical plane of laser instrument (1) and turning axle (11), make the cone apex angle of measuring blind area within the scope of 25 degree to 35 degree, on fixed support (4), be fixed with synchronizing pulse laser instrument (2), turntable (3) often rotates a circle, and when through code-disc (10) zero-bit, triggers the synchronizing pulse output of a synchronizing pulse laser instrument (2).
Transmitting base station provided by the invention, can be installed on roof, has overcome the deficiency of common ground mount type transmitting base station.In the design of transmitting base station inner shaft system, adopt direct current generator directly to drive and upside-down mounting locking apparatus simultaneously, by motor direct-drive turntable, rotated, avoided the vibration effect of common rotation axis system.Laser instrument 1 on transmitting base station and synchronizing pulse laser instrument 2 are installed on the end face of instrument simultaneously, and by suitably adjusting setting angle, make it become certain scanning inclination angle with rotating shaft.The present invention is directed to the requirement of top dress, redesigned the installation form of laser instrument 1 and synchronizing pulse laser instrument 2 on transmitting base station, make sweep limit under instrument.By the setting angle of laser instrument 1 is rationally set, expanded sweep limit, and top layer installs effectively to have reduced and measures occlusion issue and the contingent artificial collision problem that occasion exists, make to measure more convenient and hommization.Direct current generator directly drives, and the power waste while having reduced long shaft transmission increases stationarity greatly, has increased greatly speed stability, has improved measuring accuracy.
Accompanying drawing explanation
Fig. 1 top of the present invention dress is inverted transmitting base station design diagram.
The corresponding title of sequence number in figure: 1, laser instrument 2, synchronizing pulse laser instrument 3, transmitting base station turntable 4, support 5, upside-down mounting tightening mechanism 6, electric machine controller 7, bearing 8, motor stator 9, rotor 10, code-disc, 11 turning axles
Embodiment
Below in conjunction with drawings and Examples, the present invention will be described.
The transmitting base station of the present invention's design, is applicable to roof and installs, and paper is total once, transmitting base station turntable 3 is arranged on bearing 7 by turning axle 11, and DC motor rotor 9 is connected with transmitting base station turntable 3, and motor stator 8 is connected with support 4, code-disc 10 is connected with main shaft, for speed governing.Synchronizing pulse laser instrument 2 is arranged on support 4, often rotates a circle, and when through code-disc zero-bit, internal circuit triggers a synchronizing pulse output, indicates that measurement of angle in this week starts timing.Laser instrument 1 is connected to one with transmitting base station turntable 3 by certain angle, realizes rotation under the effect of electric machine controller 6.
By laser instrument 1, synchronizing pulse laser instrument 2 are positioned over to instrument end, and suitably design the angle of laser instrument 1 optical plane and turning axle, make the cone apex angle of measuring blind area within the scope of 25 degree to 35 degree.When top dress is inverted, setting height(from bottom) is 12 meters, and scan blind spot radius is 3.2 meters, by arranging a plurality of tops dress transmitting base station, and impact that can dead zone-eliminating.And because scanning survey scope is positioned at factory building top, can be subject to hardly the interference of pedestrian and all the other equipment.
In structure, by being inverted tightening mechanism 5, make transmitting base station turntable 3 in inversion situation, still can flexible rotating, avoided the impact of turntable gravity.Be compared to surface-mounted form, when top dress is inverted, by imposing on the pretightning force effect of bearing 7 inner rings, guarantee not drift downwards of transmitting base station turntable 3.Rotor 9 is directly connected with transmitting base station turntable 3, thus the stability while having improved work.
During work, by electric machine controller 6, make transmitting base station turntable 3 follow rotor 9 and rotate together, make transmitting base station turntable 3 directly obtain and drive power, by the speed governing of code-disc 10, feed back, make speed stability very high, be convenient to measure.Meanwhile, the synchronizable optical 2 of arranging down, when turntable 3 often rotates a circle, is driven and is produced one-period signal by code-disc, and the laser instrument 1 of arranging is down followed transmitting base station turntable 3 and rotated together instrument lower space is scanned.Due to the angle reason of light beam, under transmitting base station, can form an intrinsic gauging blind area of cone apex angle 30 degree left and right.As previously mentioned, by reasonable Arrangement multistation, can eliminate this blind area.

Claims (1)

1. the pushed up dress for angle intersection measurement is inverted transmitting base station, comprise fixed support (4), upside-down mounting tightening mechanism (5) and turntable (3), turning axle (11) is connected with upside-down mounting tightening mechanism (5) by bearing (7), the bottom of turning axle is fixed with the turntable (3) that driven by direct current generator, on electric machine main shaft, be connected with code-disc (10), in the bottom of turntable (3), be fixed with at least two laser instruments for emission scan light (1) down, oblique between the optical plane of laser instrument (1) and turning axle (11), make the cone apex angle of measuring blind area within the scope of 25 degree to 35 degree, on fixed support (4), be fixed with synchronizing pulse laser instrument (2), turntable (3) often rotates a circle, and when through code-disc (10) zero-bit, triggers the synchronizing pulse output of a synchronizing pulse laser instrument (2).
CN201310554287.8A 2013-11-07 2013-11-07 Transmitting base station capable of being reversely arranged at top for angle intersection measurement Pending CN103616662A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201310554287.8A CN103616662A (en) 2013-11-07 2013-11-07 Transmitting base station capable of being reversely arranged at top for angle intersection measurement
PCT/CN2014/074057 WO2015066992A1 (en) 2013-11-07 2014-03-25 Top-mounted up-side-down transmit base station for intersection measurement of angle

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Application Number Priority Date Filing Date Title
CN201310554287.8A CN103616662A (en) 2013-11-07 2013-11-07 Transmitting base station capable of being reversely arranged at top for angle intersection measurement

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015066992A1 (en) * 2013-11-07 2015-05-14 天津大学 Top-mounted up-side-down transmit base station for intersection measurement of angle
CN106249202A (en) * 2016-07-04 2016-12-21 北京国承万通信息科技有限公司 Location beam launcher, location beam emission equipment and alignment system
CN106324564A (en) * 2016-08-05 2017-01-11 北京国承万通信息科技有限公司 Positioning method, positioning device, positioning equipment and positioning system
CN108181629A (en) * 2018-01-16 2018-06-19 永发（河南）模塑科技发展有限公司 A kind of vacuum suction detection device for detecting three-dimensional layered product
CN108226865A (en) * 2016-12-22 2018-06-29 上海乐相科技有限公司 A kind of object localization method and device using laser scanning
CN109884609A (en) * 2019-02-27 2019-06-14 深圳市杰普特光电股份有限公司 Laser radar
CN110794385A (en) * 2019-10-18 2020-02-14 北京空间机电研究所 Method and system for evaluating zero gravity pointing of laser

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015066992A1 (en) * 2013-11-07 2015-05-14 天津大学 Top-mounted up-side-down transmit base station for intersection measurement of angle
CN106249202A (en) * 2016-07-04 2016-12-21 北京国承万通信息科技有限公司 Location beam launcher, location beam emission equipment and alignment system
CN106324564A (en) * 2016-08-05 2017-01-11 北京国承万通信息科技有限公司 Positioning method, positioning device, positioning equipment and positioning system
CN106324564B (en) * 2016-08-05 2020-01-14 北京国承万通信息科技有限公司 Positioning method, device, equipment and system
CN108226865A (en) * 2016-12-22 2018-06-29 上海乐相科技有限公司 A kind of object localization method and device using laser scanning
CN108181629A (en) * 2018-01-16 2018-06-19 永发（河南）模塑科技发展有限公司 A kind of vacuum suction detection device for detecting three-dimensional layered product
CN109884609A (en) * 2019-02-27 2019-06-14 深圳市杰普特光电股份有限公司 Laser radar
CN110794385A (en) * 2019-10-18 2020-02-14 北京空间机电研究所 Method and system for evaluating zero gravity pointing of laser

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Inventor after: Zhu Jigui

Inventor after: Ren Yongjie

Inventor after: Yang Linghui

Inventor after: Han Yandong

Inventor after: Xue Bin

Inventor before: Zhu Jigui

Inventor before: Ren Yongjie

Inventor before: Yang Linghui

Inventor before: Han Yandong

Inventor before: Xue Bin

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20140305