摘要
本文针对天生桥一级水电站上游的水情监测,基于视觉测流原理,设计并开发了一套低成本、高效的图像采集与处理系统,并与走航式ADCP进行了比测分析。结果表明,视觉测流虚流量与比测流量相关关系拟合曲线的可决系数R2达到了0.99,系统误差为−0.44%,随机不确定度为9.87%,符合一类精度站的流量测验允许误差标准,验证了视觉测流系统的准确性和稳定性,为天生桥一级水电站的水库调度提供重要数据支持。
This paper focuses on hydrological monitoring upstream of the Tianshengqiao First Level Hydropower Plant. Based on the principle of visual flow measurement, a low-cost and efficient image acquisition and processing system was designed and developed. A comparative analysis was conducted with the mobile ADCP. The results show that the coefficient of determination (R2) of the fitting curve between the visual flow measurement and the comparative flow measurement reached 0.99. The system error was −0.44%, and the random uncertainty was 9.87%, which meets the allowable error standard for flow measurement of Class I accuracy stations. This validates the accuracy and stability of the visual flow measurement system, providing important data support for the reservoir dispatching of the Tianshengqiao First Level Hydropower Plant.
出处
《水资源研究》
2024年第3期273-282,共10页
Journal of Water Resources Research
