基于CAN总线的双轴测斜系统设计

Design and Development of Biaxial Inclinometer SystemBased on CAN Bus

传统使用RS-485通信的测斜仪器在面对当下现代化测控要求时体现出各种不足。为此,采用CAN总线技术重新设计了一套功能齐全的双轴测斜系统。该系统具备数据测量、数据采集、数据通信、数据处理、人工交互、自动预警等一系列相关功能,为对大坝、边坡等滑坡监测有需求的项目提供了一套完整的解决方案。同时对其他类似设计所忽略的双轴正交问题进行了处理,使用二元回归算法提高了测量结果的精度。测试试验通过分度仪对样机进行了测量结果标定,将量程内测量误差缩小到0.2%F.S以内。

Traditional RS-485 bus inclinometers have reached their limits in handling modern displacement monitoring issues which require faster communication speed and longer communication distance.To improve the communication performance of traditional inclinometers,a fully functional biaxial inclinometer system based on the CAN(Controller Area Network)bus has been developed in this study.The whole system has functions of data measurement,data collection,communication,data processing,man-machine interaction,and early warning.This study has managed to fix the mounting error problem that many other studies ignored as well by applying bivariate quadratic regression.The final experimental results indicate a total error less than 0.2%F.S.