河床地形实时在线监测系统开发及其应用

发布时间：2018-07-01 15:36

  本文选题：河床地形 + 实时在线监测　； 参考：《长江科学院院报》2017年12期

【摘要】：实时地形数据有利于河床演变分析和工程评估。基于超声波、4G无线传输、网络数据库等技术,研发了河床地形实时在线监测系统。为消除温度、盐度等因素对测量结果的影响,设计了超声波声速校核装置:利用固定校核面反射超声波信号,通过计时器获取超声波发射和反射信号时间间隔,从而反演超声波声速,实现对声速的实时校正。系统应用到姚江大闸下游河床地形监测,监测时段内河床地形淤积了0.041 m,对应时段内GPS-RTK测量结果为河床地形淤积了0.050 m,2种方法测量结果基本一致。实践应用结果表明本系统监测数据可靠,能用于地形实时监测中。
[Abstract]:Real-time terrain data is useful for river bed evolution analysis and engineering evaluation. Based on the technology of wireless transmission and network database, a real-time online monitoring system for river bed topography is developed. In order to eliminate the influence of temperature, salinity and other factors on the measurement results, the ultrasonic speed check device is designed. The ultrasonic signal is reflected by the fixed check surface, and the time interval between the ultrasonic emission and the reflection signal is obtained by a timer. Thus the ultrasonic velocity can be retrieved and the sound velocity can be corrected in real time. The system has been applied to the topographic monitoring of the lower reaches of the Yaojiang sluice. The results of the monitoring period are 0.041 m, and the results of GPS-RTK measurement in the corresponding period are almost the same as those of the two methods. The practical application results show that the monitoring data of this system are reliable and can be used in real-time terrain monitoring.
【作者单位】： 广东水利电力职业技术学院水利工程系;河海大学水利水电学院;
【基金】：国家自然科学基金项目(51309083) 广东水利科技创新项目(2016-03) 重大科学仪器设备开发专项(2011YQ070055)
【分类号】：TP274;TV147

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