Computerized Assessment of the Illumination and Visual Requirements of Underground Mining Machines.
Int'l Conf on Ergonomics Occupational Safety & Health & the Env Beijing 9-88 PP 490-498 :490-498
The Bureau of Mines is researching a computerized technique to assess the illumination and visibility requirements of underground mining machines. 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. Federal underground coal mine regulations require that designated surfaces within the miner's normal field of vision be illuminated to 0.06 Ft-lambert while self-propelled mining equipment is being operated in the working place. The program simulates mine illumination systems and allows the user to quickly analyze proposed lighting configurations without resorting to building physical mockups and manually taking light readings. Through a task analysis, 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. The location of the val's can be specified by their position in three planes: fore-aft, lateral or side to side, and vertical or up-down. A view from the operator's station is drawn, taking into account the field of vision at the eye, and the user then notes which val's can or cannot be seen and what modifications may be needed in the machine design.
Int'l Conf. on Ergonomics, Occupational Safety & Health & the Env., Beijing, 9-88, PP. 490-498