在汽车驾驶模拟器视景系统的开发中,场景模型的建立和管理是非常重要的内容,直接影响到整个系统的沉浸感、交互性和实时性.根据系统要求主要使用M u ltiG en C reator建立了场景模型,采用O penGV S对场景进行了驱动,提出了场景的组织和管理原则,并对其中的关键技术如场景导入、摄像机跟随、碰撞检测等进行了探讨.这些技术已在系统开发中获得成功应用,取得了较好的仿真效果.
A line-feature based SLAM algorithm is presented in this paper to resolve the conflict between the requirements of computational complexity and information-richness within the point-feature based SLAM algorithm, All operations required for building and maintaining the map, such as model-setting, data association, and state-updating, are described and formulated. This approach has been programmed and successfully tested in the simulation work, and results are shown at the end of this paper.
无线传感器网络和无线射频识别技术通过IEEE802.15.4标准和ZigBee协议结合起来组成WSID网络,相对于现有的无线传感器网络与主动RFID,在通信距离、时钟同步、定位跟踪以及数据融合等方面均有较大的改善和提高,根据此类系统的应用特点,提出基于面向服务架构和XML Web Services的软件平台的体系结构,具有良好的开放性,使系统的利用率和可重复使用性大大提高。
