深大基坑无线自动化监测系统的开发应用

深大基坑无线监测系统为基坑监测提供实时、精确、连续的数据,预测基坑变形趋势,为基坑安全顺利施工提供保障。该系统由自动监测传感器、无线数据采集器、中继器、基站和用户服务平台组成。选择适用于深大基坑变形、受力和地下水位监测的传感器,并开发与传感器数字信号接口相匹配的自组网通信模块,采用基于IEEE(电气和电子工程师协会)批准通过的802.15.4无线标准的Zig Bee(低功耗局域网协议)无线传输技术。用户服务平台采用SOA(面向服务的体系结构)架构,基于J2EE平台和B/S(浏览器/服务器)多层体系架构,分为展示层、应用层、平台层、数据层和数据接口层。应用服务平台提供基坑模型管理、数据分析处理、安全评估、预警反馈、曲线及报表输出和综合管理等应用功能。

Development and Application of Wireless Automatic Monito-ring System for Deep and Large Foundation Pit

Wireless automatic monitoring system for deep foundation pit can provite real-time,accurate and continu-ous data,which are used to predict the deformation trend and ensure the safety of foundation pit construction.This system for deep foundation pit consists of automatic moni-toring sensor,wireless data collector,repeater,base sta-tion and user service platform.Suitable automatic monito-ring sensors are chosen for monitoring the deformation, stress,crack and ground water level,and the wireless data collectors are developed for automactic monitioring sensors based on the digital signal characteristics of the sensors. The ZiGBee wireless transmission technology based on IEEE approved 802.1 5.4 wireless standards is used for wireless transmission data monitoring.While the user serv-ice platform adopts the SOA architecture,it is based on the J2EE platform and B/S multilayer architecture,it constists of the presentation layer,application layer,platform lay-er,data layer and the data interface layer.User service platform provides the management of foundation pit model management,data analysis, safety assessment and early warning feedback,curve and report output,comprehensive management,and other applications.