Robust sensing for a 3,500 tonne field robot

The mining industry is highly suitable for the application of robotics and automation technology since the work is arduous, dangerous and often repetitive. This paper discusses a robust sensing system developed to find and trade the position of the hoist ropes of a dragline. Draglines are large `walking cranes' used in open-pit coal mining to remove the material covering the coal seam. The rope sensing system developed uses two time-of-flight laser scanners. The finding algorithm uses a novel data association and tracking strategy based on pairing rope data.

Robot control of a 3,500 tonne mining machine

The mining industry is highly suitable for the application of robotics and automation technology since the work is arduous, dangerous and often repetitive. This paper describes the development of an automation system for a physically large and complex field robotic system - a 3,500 tonne mining machine (a dragline). The major components of the system are discussed with a particular emphasis on the machine/operator interface. A very important aspect of this system is that it must work cooperatively with a human operator, seamlessly passing the control back and forth in order to achieve the main aim - increased productivity.

Vegetation and climate variations at Taibai, Qinling Mountains in central China for the last 3 500 cal BP

IEECAS SKLLQG

Croig Cave: a late Bronze Age ornament deposition and 3,500 years of coastal foraging in NW Mull, Scotland

Activity within caves provides an important element of the later prehistoric and historic settlement pattern of western Scotland. This contribution reports on a small-scale excavation within Croig Cave, on the coast of north-west Mull, that exposed a 1.95m sequence of midden deposits and cave floors that dated bewteen c 1700 BC and AD 1400. Midden analysis indicated the processing of a .... 950 BC, a penannular copper bracelet a discrete ritual episode within the cycle of otherwise potentially mundane activities. Lead isotope analysis indicates an Irish origin for the copper ore. A piece of iron slag within later midden deposits, dated to c 400 BC, along with high frequencies of wood charcoal, suggest that smithing or smelting may have occurred within the cave. High zinc levels in the historic levels of the midden c AD 1200 might indicate intensive processing of seaweed.

Ms.Ff.F.Stoltze 3. 500 - Brief von Friedrich Stoltze an Lyda Stoltze und Laura Stoltze

Frankfurter Latern: Produktion, Königstein, Alice Stoltze, Marie Geisselbrecht

Phase I survey of 3,500 acres at Fort Leonard Wood, Pulaski County, Missouri /

"For submission to U.S. Army Construction Engineering Research Laboratories, Champaign, Illinois"

English spelling simplified, as recommemded by President Roosevelt, Andrew Carnegie, Mark Twain, Brander Matthews, and other distinguished men. A history of the reformed spelling movement to date, including the 300 words adopted for immediate use in the government departments, together with 3,500 amended spellings, rules and other valuable information ...

Mode of access: Internet.

A guide to collectors. 3,500 illustrations. English furniture, decoration, woodwork & allied arts during the last half of the seventeenth century, the whole of the eighteenth century, and the earlier part of the nineteenth,

Mode of access: Internet.

Test and evaluation period of 120,000 pph atmospheric fluidized bed combustion boiler with 3,500 kw cogenerated electric power /

"ILENR/CD-87/02."