摘要
提出了一种适合野外使用的便携式定向与海拔高度及温度测量的手持解决方案,该手持测量仪可以精确测量方向角、温度以及所在地的气压值进而获得海拔高度值,并采用OLED显示器数字显示。该方案在硬件及软件中采取诸多降低功耗、提高精度的措施包括采用超低功耗CPU以及高精度低功耗的智能传感器,软件流程采用中断方式等。另外采取温度补偿以及基于椭圆假设的磁传感器通道不一致性补偿等误差修正算法,使得该方案具有重量轻、功耗低、精度高、成本低等优点。
A new solution for outdoor orientation and altitude measurement is proposed and implemented.The solution,we proposed,can measure the orientation angle and barometric pressure and altitude precisely which are displayed on an OLED panel.Many measures have been taken to improve measurement precision and reduce power dissipation including the usage of the ultra-low-power-dissipation components（MSP430F149 and smart sensor） and specific software flow.Some calibration algorithms including temperature compensation and inconsistency compensation based on ellipse hypothesis theory are also used.The solution is smart and precise,meanwhile it is low power dissipation and low cost.
出处
《传感技术学报》
CAS
CSCD
北大核心
2010年第8期1093-1097,共5页
Chinese Journal of Sensors and Actuators
基金
广东省科技计划项目资助(2009B010800067)
关键词
智能传感器
高度测量
方向测量
温度补偿
椭圆假设
八位置法标定
smart sensor
altitude measurement
orientation
temperature compensation
ellipse hypothesis
8-position calibration
