基于GIS的大型工程分布式光纤传感监测系统研究

BOTDR是一种新型的分布式光纤传感监测技术,其分布式、高精度、长距离、实时性、远程控制等特点,已逐渐受到工程界的广泛关注。本文结合工程实践中遇到的具体问题,研发了一套基于GIS的大型工程分布式光纤传感监测系统,讨论了系统的设计要求。并结合某隧道BOTDR监测工程实例,开发了一套相应的监测数据管理系统。该系统集工程监测数据的采集与管理、监测结果的可视化、监测信息的对比查询等功能于一体,是一套集智能化分析与决策化管理为一体的多功能管理系统。

Research on large engineering monitoring system using distributed optical fiber sensor based on GIS

The Brillouin Optic Time-Domain Reflectometer (BOTDR) is the newest distributed optical fiber sensor with the characteristics of distributed monitoring, high accuracy, long span, real time, long-range control, etc. More and more engineers pay much attention to this new technology. The data which gained from BOTDR depends on the exactly geographical positions, for the BOTDR can get the strain information along the whole optical fiber which has been bonded on the structure linearly. Considering of the problems met in the practice of BOTDR, a large engineering monitoring system using distributed optical fiber sensor based on GIS is designed. This paper mainly discusses the requirements of the system, including the designing goal, the technical structure, and the characteristic function. Combining a certain tunnel project, a specific data management system is developed. Some important functions are implemented in this system, such as data acquisition and management, visual monitoring results, information contrast and query, etc. It integrates intelligent analysis and decision management into the multifunctional system as a whole.