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WO2018171276A1 - Instrument de nivellement à base de micro-miroirs - Google Patents

Instrument de nivellement à base de micro-miroirs Download PDF

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Publication number
WO2018171276A1
WO2018171276A1 PCT/CN2017/118380 CN2017118380W WO2018171276A1 WO 2018171276 A1 WO2018171276 A1 WO 2018171276A1 CN 2017118380 W CN2017118380 W CN 2017118380W WO 2018171276 A1 WO2018171276 A1 WO 2018171276A1
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WO
WIPO (PCT)
Prior art keywords
micromirror
module
laser beam
laser
sweeper
Prior art date
Application number
PCT/CN2017/118380
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English (en)
Chinese (zh)
Inventor
张瓯
丁鼎
Original Assignee
常州华达科捷光电仪器有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 常州华达科捷光电仪器有限公司 filed Critical 常州华达科捷光电仪器有限公司
Publication of WO2018171276A1 publication Critical patent/WO2018171276A1/fr

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  • the invention relates to a micromirror sweeper in the field of construction.
  • the structure of the existing laser leveling device is to emit laser light from a single light source, form a point to the outside through the pentagonal prism, and then rotate the laser emitting part of the instrument at a high speed by the motor to form a circumferentially shaped laser line on the target wall.
  • the disadvantage of such an instrument is that it is bulky, heavy in weight and energy-consuming due to the inclusion of the motor.
  • the present invention proposes a micromirror sweeper that replaces the optical path structure of a conventional leveling device. Due to the intelligent programming of the micromirror, the present invention can satisfy the functions of the conventional laser leveling device, and at the same time make it intelligent and lightweight. Chemical.
  • the cumbersome calibration assembly process of the traditional sweeper can be abandoned, and the development of its intelligence and lightness can be realized.
  • the invention discloses a micromirror level sweeper, comprising: a laser source module emitting a laser beam; a micromirror optical module receiving the laser beam; the micromirror optical module comprising micro scanning lenses, the micro scanning lenses are in mutual Moving in two perpendicular directions, the laser beam is reflected by the micro-scanning lens to a target object, the target object reflects the laser beam back to the scanning galvanometer module to form a reflected laser; the light detecting module Receiving a reflected laser light of the laser beam and converting the reflected laser light into an electrical signal; and a data processing module connected to the light detecting module, receiving the electrical signal and calculating distance data of the target object.
  • the micromirror optical module is a set of micromirror mechanisms fixed in the same plane.
  • the micromirror optical module comprises at least six micromirror mechanisms.
  • the scanning range of the micromirror mechanism is 60°, and the scanning range of the six micromirror mechanisms covers 360°.
  • each of the micromirror mechanisms comprises an independent light source.
  • the light detecting module and the data processing module are disposed in an embedded unit.
  • the micromirror sweeper further comprises: a laser modulation module for modulating the laser intensity and the emission time of the laser source module.
  • the micromirror sweeper further comprises: a communication module that is in interactive communication with a mobile device.
  • the micromirror sweeper further comprises: a human-computer interaction module, the human-computer interaction module comprising a user interface and a display.
  • the micromirror sweeper further comprises: a power module, the power module being provided by one of a disposable battery pack, a rechargeable battery or an external regulated power supply.
  • FIG. 1 is a schematic structural view of a system of a micromirror level sweeper in accordance with a preferred embodiment of the present invention
  • the micromirror sweeper includes the following equipment:
  • the laser source module is arranged inside the micromirror sweeper to emit a laser beam outward.
  • the micromirror optical module includes a micro-scanning lens that moves in two directions perpendicular to each other such that the laser beam is reflected by the micro-scanning lens to a target object, and the target object is The laser beam is reflected back to the scanning galvanometer module to form a reflected laser; the micromirror optical module includes at least six micromirror mechanisms. Since the scanning range of a single micromirror mechanism is 60° and the scanning range of the six micromirror mechanisms covers 360°, a programmable variable image can be projected in a omnidirectional plane. Each micromirror mechanism contains an independent light source.
  • the scanning galvanometer module After the scanning galvanometer module receives the reflected laser light, the reflected laser light is reflected to the light detecting module. After receiving the reflected laser light, the light detecting module converts the reflected laser light into an electrical signal, and further processes the electrical signal.
  • the electrical signal may include the frequency, phase, intensity, etc. of the laser beam emitted by the laser source module, as well as the frequency, phase, intensity, etc. of the reflected laser light.
  • the device is connected to the light detecting module, receives the electrical signal converted by the light detecting module and the information of the laser beam carried in the electrical signal, and processes the information to calculate the distance data between the target object and the laser source. Specifically, after the electrical signal is transmitted by the light detecting module to the data processing module, the data processing module extracts the information of the laser beam from the electrical signal, and calculates the cause of the phase difference according to the corresponding principle, that is, the target object. Distance data.
  • the photodetection module and the data processing module can be placed in an embedded unit to facilitate programming by the user, and the micromirror sweeper can be handheld.
  • the micromirror sweeper further includes a laser modulation module that can select different modulation modes for incorrect measurement requirements. For example, when the measured value is calculated based on the time difference of the laser emission reception, the pulse modulation mode can be selected, and when the measured value is calculated based on the phase difference received by the laser emission, the sinusoidal waveform mode can be selected. Therefore, for different modes of demand, the laser modulation module can adjust the laser beam emitted by the laser source module to be converted into a desired form.
  • the micromirror sweeper of the present invention in order to further facilitate the operation of the user, the micromirror sweeper further includes a communication module or a human-computer interaction module.
  • the communication module can communicate with the mobile device, and the mobile device can be installed with application software, and the user can switch to indirectly through the communication module to the drive circuit through operation of the application software.
  • the human-computer interaction module can provide an operation interface to a user who does not have a mobile device, and includes a user interface and a display, and the user can directly input an instruction in the user interface.
  • the micromirror sweeper can be a choice of a separate device with a mobile device or a separate option from a mobile device.
  • the human-computer interaction module can be placed inside the micromirror, or in an external fixed position. This embodiment does not limit the locations of the communication module, the mobile device, and the human-machine interaction module.
  • the power supply of the micromirror sweeper can be provided by a power module, which can be a disposable battery pack and manually replaced by a user; or a rechargeable battery, such as a lithium battery, can be powered by an external power source; An external external regulated power supply is optional.

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  • Optical Radar Systems And Details Thereof (AREA)

Abstract

L'invention concerne un instrument de nivellement à base de micro-miroirs comprenant : un module de source laser pour émettre un faisceau laser ; un module optique à micro-miroir pour recevoir et réfléchir le faisceau laser vers un objet cible, l'objet cible réfléchissant le faisceau laser en retour vers le module optique à micro-miroirs pour former un faisceau laser réfléchi ; un module de détection optique recevant le faisceau laser réfléchi et convertissant le faisceau laser réfléchi en un signal électrique ; un module de traitement de données connecté au module de détection optique, le module de traitement de données recevant le signal électrique et effectuant un calcul pour obtenir des données de distance par rapport à l'objet cible. Dans l'instrument de nivellement à base de micro-miroirs, un mécanisme de rotation et un mécanisme de trajet optique dans un instrument de nivellement classique sont remplacés par un système optique à micro-miroirs. Le système optique à micro-miroirs utilise un ensemble de mécanismes à micro-miroirs fixés dans le même plan pour couvrir une plage de 360°. La programmabilité du système optique à micro-miroirs réalise une fonction d'un instrument de nivellement laser classique et permet d'actionner l'instrument de manière intelligente et d'obtenir une taille compacte.
PCT/CN2017/118380 2017-03-21 2017-12-25 Instrument de nivellement à base de micro-miroirs WO2018171276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720277602.0U CN207197514U (zh) 2017-03-21 2017-03-21 一种微镜扫平仪
CN201720277602.0 2017-03-21

Publications (1)

Publication Number Publication Date
WO2018171276A1 true WO2018171276A1 (fr) 2018-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/118380 WO2018171276A1 (fr) 2017-03-21 2017-12-25 Instrument de nivellement à base de micro-miroirs

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CN (1) CN207197514U (fr)
WO (1) WO2018171276A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11754393B2 (en) 2020-12-01 2023-09-12 Milwaukee Electric Tool Corporation Laser level interface and control

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618132B1 (en) * 1997-09-12 2003-09-09 The Regents Of The University Of California Miniature laser tracker
CN101118314A (zh) * 2007-07-31 2008-02-06 北京汇冠新技术有限公司 一种使用mems微镜检测触摸物坐标的光路系统
CN101344591A (zh) * 2008-08-22 2009-01-14 清华大学 一种微型激光二维扫描测量系统
US20090059179A1 (en) * 2007-08-30 2009-03-05 Tomoki Kobori Image displaying apparatus, and a method for adjusting vibrating condition of a reflection mirror in the image displaying apparatus
CN103399402A (zh) * 2013-08-13 2013-11-20 国家纳米科学中心 一种电磁驱动微型二维扫描镜装置
CN104296698A (zh) * 2014-10-27 2015-01-21 广州飞拓优视光电科技有限公司 一种超高精度的光学表面平整度测量方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618132B1 (en) * 1997-09-12 2003-09-09 The Regents Of The University Of California Miniature laser tracker
CN101118314A (zh) * 2007-07-31 2008-02-06 北京汇冠新技术有限公司 一种使用mems微镜检测触摸物坐标的光路系统
US20090059179A1 (en) * 2007-08-30 2009-03-05 Tomoki Kobori Image displaying apparatus, and a method for adjusting vibrating condition of a reflection mirror in the image displaying apparatus
CN101344591A (zh) * 2008-08-22 2009-01-14 清华大学 一种微型激光二维扫描测量系统
CN103399402A (zh) * 2013-08-13 2013-11-20 国家纳米科学中心 一种电磁驱动微型二维扫描镜装置
CN104296698A (zh) * 2014-10-27 2015-01-21 广州飞拓优视光电科技有限公司 一种超高精度的光学表面平整度测量方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11754393B2 (en) 2020-12-01 2023-09-12 Milwaukee Electric Tool Corporation Laser level interface and control

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