Abstract: Aiming at the defects of wired sensor data acquisition network，a three-tier monitoring program is proposed，which includes remote data management and analysis center，embedded on-site data acquisition subsystem，and ZigBee wireless sensor data acquisition network． An on-site data acquisition system using S3C2440 processor as the core is established; and a ZigBee wireless sensor network is also established to complete the on-site data acquisition，which sends the integrated and pretreated data back to the remote data center by the GPRS network． Multi-source heterogeneous sensor acquisition of experimental data corresponds with the environment variables exactly，which verifies the stability and reliability of the system．

Key words: bridge health monitoring, GPRS, ZigBee, embedded systems, embedded database

摘要： 以有线方式采集传感器数据的缺陷，提出了具有远程数据分管中心、嵌入式现场数据采集子系统、ZigBee 无线传感器数据采集网络等3 层子系统的监测方案; 构建了一个以S3C2440 处理器为核心的现场数据采集系统; 组建ZigBee 无线传感器网络完成现场采集，将融合、预处理后的数据经GPRS 网络发回远程数据中心。多源异构传感器采集的实验数据与对应环境变量完全吻合，验证了系统的稳定性与可靠性。

关键词: 桥梁健康监测, GPRS, ZigBee, 嵌入式系统, 嵌入式数据库