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.