A system for determining collision risk and calculating the maneuvers necessary to minimize collision impact.
The U.S. Navy seeks to commercialize U.S. Patent Applications 12/144,019 (Method for determining collision risk for collision avoidance systems). 12/145,670 (Host-centric method for automatic collision avoidance decisions), and 12/366,757 (Apparatus and method for automatic omni-directional visual motion-based collision avoidance).
Traditional collision avoidance systems employed in automobile adaptive cruise control (ACC) systems only assist in reducing rear-end collisions with another vehicle in front. Similar to driver limitations such as when their attention is focused elsewhere, ACC systems do not help prevent collisions resulting from laterally approaching vehicles. Furthermore, current systems require costly control processes, installed sensors, and computing machinery. The systems are limited by linear prediction models, which have a low prediction accuracy and require frequent updates when applied to real traffic.
SSC Pacific has developed a low-cost, comprehensive collision risk assessment and avoidance system. The system is composed of methods to determine collision risk, and to calculate the maneuvers necessary to avoid or minimize a collision, as well as an apparatus employing segmented visual motion information. The risk assessment system overcomes the limitations of traditional linear trajectory prediction methods by analyzing the rates of change in range and azimuth angles of objects relative to the host. The avoidance system then calculates the maneuvers necessary to avoid, or minimize the collision velocity, of objects surrounding the vehicle. This assists maneuvering in dense traffic where collision threats can come from any direction.
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- SD 814, December 2008. SSC Pacific, San Diego, CA 92152–5001. Approved for public release; distribution is unlimited.