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HORTA (mining) : ウィキペディア英語版
HORTA (mining)
HORTA is an underground geographic positioning technology utilized in the mining industry and being considered for extraterrestrial space mining applications. The technology utilizes a gyroscope and an accelerometer, together called an inertial navigation system or INS, to aid in 3D-position determination.
It was developed by Canadian mining company Inco in the late 1990s based on an earlier technology that had been originally developed for the U.S. military. It provides an automated solution to the problem of positioning and location in underground mines.〔
(Inco's Innovations ), ''Canadian Mining Journal'', April 2000, accessed 2010-12-02. ''"HORTA unit for determining the geographic position underground. HORTA-Honeywell Ore Retrieval and Tunneling Aid-is a box containing a gyro and an accelerometer, originally developed for the U.S. military, that solves the problem of positioning and location underground."〕
The term is a backronym for the Horta from Star Trek.〔
(LINK WAS: http://www.hobbyspace.com/nucleus/index.php?itemid=25469 (now a deadlink in Feb 2013) -->http://www.frequency.com/video/terrestrial-telerobotic-mining/34304316 Terrestrial telerobotic mining technology: an enabler for extraterrestrial habitation, mining, and construction ) Prof. Greg Baiden, Laurentian University, Talk given at the ''Space Manufacturing 14'' conference, 29-31 October 2010, Space Studies Institute, at 6:10-9:05, accessed 2010-12-02. ''"on the tremendous progress that has been made in automation of deep mining over the past couple of decades."''〕
As Inco uses the term, HORTA stands for Honeywell Ore Retrieval and Tunneling Aid.〔
A mining vehicle "with a HORTA mounted, can survey much faster and more accurately than manual surveys. It takes the truck 120 minutes to survey a 1.6-km-long drift, recording 1,500 points every 60 cm. This compares with a manual survey of the same distance that takes 180 hours, and records only five points every 6 m. Added benefits from such a detailed survey would be to allow engineers to design more effective ventilation systems, or to regularly check ground stability."〔
HORTA units may be fitted onto all mobile underground equipment, including drills,〔 so their position may be determined with acceptable engineering accuracy.
==See also==

* Space mining
* Teleoperation

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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