长江科学院院报 ›› 2023, Vol. 40 ›› Issue (5): 183-190.DOI: 10.11988/ckyyb.20211206

• 水利信息化 • 上一篇    

基于CAN总线的双轴测斜系统设计

张锋1, 彭思唯2, 杜泽东1   

  1. 1.中国三峡建工(集团)有限公司,成都 610095;
    2.长江科学院 工程安全与灾害防治研究所,武汉 430010
  • 收稿日期:2021-11-12 修回日期:2022-02-23 出版日期:2023-05-01 发布日期:2023-05-22
  • 通讯作者: 彭思唯(1992-),男,湖北红安人,工程师,硕士,主要研究方向为监测自动化、信息化技术。E-mail:richarde_0129@qq.com.cn
  • 作者简介:张锋(1983-),男,湖北应城人,高级工程师,硕士,主要研究方向为监测自动化、信息化技术。E-mail:zhang_feng5@ctg.com.cn
  • 基金资助:
    国家重点研发计划项目(2018YFC0407100)

Design and Development of Biaxial Inclinometer System Based on CAN Bus

ZHANG Feng1, PENG Si-wei2, DU Ze-dong1   

  1. 1. China Three Gorges Construction Engineering Corporation, Chengdu 610095, China;
    2. Dapartment of Engineering Safety and Disaster Prevention, Changjiang River Scientific Research Institute, Wuhan 430010, China
  • Received:2021-11-12 Revised:2022-02-23 Online:2023-05-01 Published:2023-05-22

摘要: 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。

关键词: 固定式测斜仪, CAN总线, MEMS传感器, 双轴正交, 安装误差, 二元回归

Abstract: 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.

Key words: in-place inclinometer, CAN bus, MEMS, biaxial orthogonal, mounting error, bivariate fitting

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