变形监测作为大坝安全状态感知的重要手段,具有测值直观、能全面反映大坝安全状态等特点,对保障大坝长期安全稳定运行具有重要的意义。目前大坝水平位移自动化监测主要使用引张线法、真空激光准直法及垂线法。尽管CCD垂线坐标仪已在大坝工程实践中广泛应用,可该仪器存在不支持现场配置、现场实时数据读取等不足,且无直接远程交互功能,需要接入其他采集装置或转接设备才能进行远程通信。本文设计的智能式CCD垂线坐标仪运用微处理器及以太网接口,不需要接入其他采集设备,可直接接入软件系统,解决了仪器集成复杂、传统通信方式不稳定等问题;并运用蓝牙通信和智能手机APP,解决了现场参数配置、实时采集显示的问题;提出了一种反馈式自适应调光技术,提高了仪器的自适应性和稳定性。
Abstract
Safety monitoring plays a crucial role in ensuring the safe and stable operation of water conservancy projects, serving as a fundamental prerequisite for achieving intelligent water conservancy. By directly capturing the displacement (or deformation) response of building structures under external loads, deformation monitoring offers a direct reflection of building safety. Currently, automatic monitoring of dam horizontal displacement primarily relies on the tension line method, vacuum laser alignment method, and vertical line method. The CCD vertical coordinate instrument has seen widespread use in dam engineering practice; however, it suffers from drawbacks such as the lack of on-site configuration and real-time data reading capabilities, and the absence of direct remote interaction function. This necessitates the use of auxiliary acquisition devices or switching devices for remote communication. To address these limitations, we designed an intelligent CCD vertical coordinate instrument with a microprocessor and Ethernet interface, eliminating the need for connection to additional acquisition equipment and enabling direct connectivity to the software system. This solution effectively resolves issues related to complex instrument integration and the unstable nature of traditional communication modes. To address field parameter configuration, real-time acquisition and display challenges, we employed bluetooth communication and a smartphone APP in designing this instrument. Furthermore, we propose an adaptive dimming technique to enhance the instrument’s self-adaptability and stability.
关键词
大坝变形监测 /
线阵CCD /
垂线坐标仪 /
以太网 /
蓝牙通信
Key words
dam deformation monitoring /
linear array CCD /
vertical coordinate instrument /
Ethernet /
bluetooth communication
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] SCAIONI M, MARSELLA M, CROSETTO M, et al. Geodetic and Remote-sensing Sensors for Dam Deformation Monitoring[J]. Sensors, 2018, 18(11): 3682.
[2] 赵 彪. 基于线阵CCD的坝体变形监测仪的研究及设计[D]. 长沙: 湖南大学, 2015.(ZHAO Biao. Research and Design of Monitoring Instrument for Dam Body Deformation Based on Linear CCD[D]. Changsha: Hunan University, 2015.(in Chinese))
[3] 徐成功. 智能CCD垂线坐标仪[D]. 青岛: 山东科技大学, 2010. (XU Cheng-gong. Intelligent CCD Vertical Coordination Instrument[D]. Qingdao: Shandong University of Science and Technology, 2010. (in Chinese))
[4] 黄跃文, 牛广利, 李端有, 等. 大坝安全监测智能感知与智慧管理技术研究及应用[J]. raybet体育在线
院报, 2021, 38(10): 180-185, 198. (HUANG Yue-wen, NIU Guang-li, LI Duan-you, et al. Research and Application of Intelligent Perception and Intelligent Management Technology for Dam Safety Monitoring[J]. Journal of Yangtze River Scientific Research Institute, 2021, 38(10): 180-185, 198.(in Chinese))
[5] 周良平, 王文华, 徐乐年. 基于CCD的三维垂线坐标仪设计[J]. 工矿自动化, 2014, 40(1): 97-100. (ZHOU Liang-ping, WANG Wen-hua, XU Le-nian. Design of 3D Vertical Plumb Line Coordinator Based on CCD[J]. Industry and Mine Automation, 2014, 40(1): 97-100.(in Chinese))
[6] 周芳芳, 毛索颖, 黄跃文, 等. 基于线阵CCD和CAN总线通信的引张线仪的设计与实现[J]. raybet体育在线
院报, 2021, 38(4): 150-154. (ZHOU Fang-fang, MAO Suo-ying, HUANG Yue-wen, et al. Design and Implementation of Wire Alignment Transducer Based on Linear Array CCD and CAN Field-bus Communication[J]. Journal of Yangtze River Scientific Research Institute, 2021, 38(4): 150-154.(in Chinese))
[7] 来冰华, 鲍秀武. 正倒垂法变形监测的原理与数据分析[J]. 北京测绘, 2014(3): 1-6. (LAI Bing-hua, BAO Xiu-wu. Principle and Data Analysis of Deformation Monitoring Using Normal and Inverted Plumb Line Method[J]. Beijing Surveying and Mapping, 2014(3): 1-6.(in Chinese))
[8] 王 盼. 低功耗蓝牙4.2协议栈应用层设计与实现[D].南京:东南大学,2018.(WANG Pan. Design and Implementation of Application Layer for Bluebooth Low Energy Stack 4.2[D]. Nanjing:Southeast University,2018. (in Chinese))
基金
中国三峡建工(集团)有限公司科研项目(JG/20016B);国家重点研发计划项目(2022YFC3005503)
PDF(3792 KB)
