针对三峡库区的航道条件、地理环境等实际情况航标测控系统提出的低功耗、高可靠性及定位精度的要求,采用双MCU架构设计了终端系统,并采用莱以特判别法处理GPS异常数据,应用软件对多个任务进行任务限时处理,实现了系统的设计要求。终端功耗仅30mA/4V。已在长江三峡库区使用近3年,经历寒暑变化,仍然可靠运行。
A Remote Terminal Unit of pharos monitor system based on double MCUs is developed to lower its power cost down to 30mA/4V. Task -time limited service is used in MCU's software. RTUs have been running in the three gorges along Yangtse river for 2 years, and it still works well.