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Computerized Assessment of Visual Requirements in Mining Machines.

Rider-JP; Unger-RL
Trends in Ergonomics/human Factors IV 1987 :73-80
This paper describes a computerized technique to assess the visibility from mining machine operator compartments. This research is part of an overall project to make available a computer-based model that could lead to better ergonomic design of mining equipment and a safer mining environment. Visual attention locations (val's) were developed by identifying the location of important visual features that the operator must be able to see in order to operate the equipment safely and efficiently. Val's are defined as points in space described in relation to the front-back, up-down, and side- to-side positions on a mining machine. These locations, which may be applied to any type of machine, are defined in the computer software. A design eye point and a focus point are also identified to the program. The user has the option of defining the eye position by either locating a point in space or by defining a point representing the lumbar joint of a 3-d manikin. The focus point is identified by giving the software a visual attention location or by locating an arbitrary point in space. With this, along with field of vision parameters, the user can simulate sitting inside the operator compartment, or looking from a val into the compartment.
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OP 86-87
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Trends in Ergonomics/human Factors IV 1987, PP. 73-80