Title:
THREE-DIMENSIONAL SURVEYING APPARATUS, THREE-DIMENSIONAL SURVEYING APPARATUS DRIVING METHOD, AND THREE-DIMENSIONAL SURVEYING APPARATUS DRIVING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/058148
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a three-dimensional surveying apparatus, a three-dimensional surveying apparatus driving method, and a three-dimensional surveying apparatus driving program that can minimize operating time and save power consumption of a battery. A three-dimensional surveying apparatus 2 is provided with: a motor 433 that rotates a rotation object; a rotary encoder 434 that detects the rotation angle of the rotation object; a calculation unit 461 that calculates, as an initial phase, the phase relationship of the phase of the motor 433 with respect to the zero position of the rotary encoder 434; and a storage unit 468 that stores the initial phase as a drive parameter. The calculation unit 461 stores the drive parameter in advance in the storage unit 468, and drives, at the initial operation after power on, the motor 433 by open loop control. Upon detection of the zero position of the rotary encoder 434, the calculation unit applies the drive parameter stored in the storage unit 468 as a phase angle, and then drives the motor 433 by closed loop control using a value of the rotary encoder 434.
Inventors:
MATSUMOTO MASAE (JP)
ABE JUN (JP)
SHOJI NAOKI (JP)
ABE JUN (JP)
SHOJI NAOKI (JP)
Application Number:
PCT/JP2023/033104
Publication Date:
March 21, 2024
Filing Date:
September 11, 2023
Export Citation:
Assignee:
TOPCON CORP (JP)
International Classes:
G01C15/00; G01B7/30; G01D5/12
Foreign References:
| JP2017102033A | 2017-06-08 | |||
| JP2014023273A | 2014-02-03 | |||
| JP2015023675A | 2015-02-02 |
Attorney, Agent or Firm:
ARAI Tamotsu et al. (JP)
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