基于MEMS传感器的虚拟现实参观系统

摘要

提出了一种基于MEMS传感器、LM3S1138嵌入式处理器和Vega仿真平台的虚拟现实参观系统,介绍了系统主机端和手柄模块的系统结构.通过坐标变换的方法将传感器测量值转换成手柄在球坐标系中的状态,并计算出动作指令发送给主机端以改变虚拟场景中的视角.在Vega虚拟场景中对比了理论指令边界和实测指令边界,说明该系统可以达到预期设计目标.%A virtual reality touring system (VRTS) based on MEMS sensors, LM3S1138 embedded MCU and Vega simulation platform is proposed. The structures of host and joystick are introduced. The measurements of sensors are transformed into the state of joystick in spherical coordinates which is used to generate action command changing the viewpoint in the virtual scene. In Vega virtual scene theoretical command edge and measured command edge are compared and it illustrates that the requirements are satisfied.