The claimed subject matter provides industrial automation systems and/or methods that evaluate a proximity to potential hazards. A plurality of sensors can provide redundant detected data. Additionally, a proximity evaluation component can evaluate the detected data, determine a location of at least...http://www.google.com.au/patents/US7522066?utm_source=gb-gplus-sharePatent US7522066 - Systems and methods that evaluate distance to potential hazards utilizing overlapping sensing zones
