基于ARM7的光纤陀螺经纬仪寻北系统设计与实现

针对机械式陀螺经纬仪系统工艺要求高、结构复杂、精度受多方制约的特点,设计了一个陀螺经纬仪寻北系统,采用四位置寻北方案,选用光纤陀螺为测量元件,用高速32位ARM7微控制器作为主控芯片,寻北过程操作完全通过红外控制实现.实验数据表明,系统能很好的实现寻北功能,稳定性好,精度能够达到要求,同时系统结构简单、易于实现,接口灵活、扩展性好.

Design and Implementation of North-seeking System of Fiber Optic Gyroscope Theodolite

The gyroscope theodolite has many deficiencies such as high technology required,complicated structure and precision restricted by many aspects.Based on this aspect,a north-seeking system of FOG theodolite was presented.The final aim of this design is improving the performance of system's stability,simplification and maneuverability.Four-position method was adopted to eliminate error caused by constant drift.The high-speed 32 bit ARM7 microchip was used as the main processor.During the whole process,all operation was realized by infrared controller,which could avoid unnecessary error and make system be easy to handle.Result of experiment indicates that the system meet the demand in all aspects.