基于测量机器人自动化监测系统的大气折光改正模型效果分析  

Effect analysis of atmospheric refraction correction model for automatic monitoring system based on measuring robot

作　　者：牛秀博 魏玉敏 Niu Xiubo;Wei Yumin(SPIC Dam Safety Supervision Center,Xian710000;SPIC Sichuan Ganzi Branch,Chendu610000)

机构地区：[1]国家电力投资集团有限公司大坝管理中心,西安710000 [2]国家电投集团四川公司甘孜分公司,成都610000

出　　处：《吉林水利》2023年第2期7-11,共5页Jilin Water Resources

摘　　要：Moto-TPS在大坝外部位移监测中的应用日益广泛,自动化观测过程中,气象条件变化导致的大气折光对距离、角度等测值的影响较大。由于自动化监测中无法通过对向观测来削弱大气折光误差,需要通过模型对大气折光进行修正。在对典型大气折光改正模型总结的基础上,结合实验数据分析不同大气折光改正模型的修正效果。结果表明,在小区域范围内气象改正模型与基准点差分改正模型均能够有效削弱大气折光对观测值造成的影响,提升监测精度,且利用测站气象信息进行改正,与同时利用测站、测点气象信息进行改正效果相当。The application of Moto-TPS in dam external displacement monitoring is increasingly widespread.In the process of automatic observation,atmospheric refraction caused by changes in meteorological conditions has a great influence on measured values such as distance and Angle.Since the atmospheric refraction error cannot be weakened by directional observation in automatic monitoring,the atmospheric refraction error needs to be corrected by model.Based on the summary of typical atmospheric refraction correction models,this paper analyzes the correction effects of different atmospheric refraction correction models combined with experimental data.The results show that both the meteorological correction model and the datum point difference correction model can effectively weaken the influence of atmospheric refraction on the observed values and improve the monitoring accuracy in a small area.The effect of using the meteorological information of the station is equivalent to that of using the meteorological information of the station and the measuring point simultaneously.

关 键 词：大坝自动化监测 大气折光改正模型 气象改正 基准点差分改正 监测精度 

分 类 号：TV698.1[水利工程—水利水电工程] P224.1[天文地球—大地测量学与测量工程]