Mining work machine and obstacle discrimination device
US10908271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Dec 13, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2013/93275
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An obstacle determination device mounted on a mining work machine determines whether the state of the mining work machine is a state immediately after progressing or a normal travel state; selects, as a distance threshold provided to determine a non-obstacle, a starting distance threshold if in the state immediately after starting, or a normal distance threshold if in the normal travel state; extracts obstacle candidates on the basis of the result of comparison of the distance at which an obstacle candidate was initially detected with the distance threshold; selects a starting reflection intensity threshold if the state immediately after starting, or a normal reflection intensity threshold if in the normal travel state; excludes non-obstacles on the basis of the result of comparison of the reception strength of the reflection wave of the remaining obstacle candidates with the reflection intensity threshold; and outputs the remaining obstacle candidates as obstacles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.