作者: George R. Payne
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摘要: A vehicle backup monitoring and alarm system which comprises a of three closed circuit video cameras, laser-based distance detection systems an associated monitor is disclosed. camera are mounted on each side, as well the rear motor or large truck, coupled to one monitor, located by driver, displays all images simultaneously. The closest object, displayed camera, determined system, superimposed over respective object in monitor. If any these said distances fall below minimum predetermined distance, numeric representation will flash audible sound.