Positional measurement system, positional measurement method, and mobile robot
US10564287B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Feb 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S5/0009
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A positional measurement system includes: a mobile robot including a global navigation satellite system (GNSS) signal reception unit that receives GNSS signals and calculates a position of the mobile robot based on the GNSS signals, a GNSS signal precision evaluation unit that evaluates positional measurement precision by the received GNSS signals, and a position control unit that moves the mobile robot to a high-precision reception position, where GNSS signals yielding positional measurement precision higher than a first threshold precision can be received; a relative position detection unit that detects a relative position of a target as to the mobile robot situated at the high-precision reception position; and a target position calculation unit that calculates a position of the target based on the calculated position of the mobile robot based on the GNSS signals received at the high-precision reception position, and the relative position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.