关键词: 层次包围盒, 协同工作, 空间换时间, 适时终止

Abstract: Based on the real-time judgment of vehicle location system，this paper uses bounding-volume hierarchies algorithm to simplify computation.In specific design，the strategy of how super ordination machine and lower place machine work together is provided firstly and concretely，then has led into “termination at the right moment " mechanism，and has analyzed the algorithmic function in detail.Experiment proves that this kind of method can solve difficult point realizing vehicle location real-time supervisory control in low cost vehicle equipment effectively.

Key words: bounding-volume hierarchies, cooperation, space for time, termination at the right moment