智能空间中,位置感知应用不仅需要位置相关的快速查询服务,而且需要伺候式的空间事件服务。然而传统的空间数据库系统难以有效地满足以上两种需要。为此提出了一种轻量级的伺候式空间服务模型P roSerM od i。该模型采用了在复合空间索引基础上的双服务处理机制技术,不仅使空间事件服务的通知质量从传统模型的I/2降低到零延时,而且使与位置相关的查询处理的复杂度从传统模型的O(n)降低到O(logkn)。综合性能分析表明该模型在提供位置感知服务上比传统模型更有效。 In smart space, location-aware applications need not only location-dependent quick query services but also server-style spatial event services. However, the traditional spatial database system can not effectively meet the above two needs. For this reason, a lightweight service model of waiting space service, P roSerM od i, is proposed. The model uses a dual service mechanism based on composite spatial indexing, which not only reduces the notification quality of spatial event service from I / 2 of traditional model to zero delay, but also makes the complexity of location-dependent query processing from The traditional model reduces O (n) to O (logkn). Comprehensive performance analysis shows that the model is more efficient than the traditional model in providing location-aware services.