基于ARM平台的振动监测系统实现

Realization of vibration monitoring system based on ARM platform

在桥梁结构健康监测的应用中,针对监测环境恶劣、数据传输质量难以保证的特点,提出并实现了基于ARM平台的振动监测系统。将基于QF4A512芯片的传感采集模块移植于ARM9平台,设计了一种全新的结构健康监测系统。该系统通过ARM9处理器的GPIO接口驱动QF4A512处理器的SPI接口,实现基于QF4A512传感采集模块的优良特性与ARM9平台的可靠性和稳定性相结合。通过采用多线程软件设计,这种系统能够对桥梁振动情况进行24h连续实时监测。对系统的标准振动试验和在桥梁监测现场的试验表明:该系统测量精度高、运行情况稳定,适用于桥梁结构健康监测的应用。

In application of structural health monitoring of bridges, aiming at harsh monitoring environment and the difficulty of data transmission, a vibration monitoring system for bridges based on ARM platform is proposed. The sensing acquision module based on QF4A512 is transplanted on the ARM platform, a brand new structural health monitoring system is designed. This system drives SPI interface of QF4A512 processor, through GPIO interface of ARM processor, and excellent characteristics of sensing acquisition module based on QF4A512 are combined with the reliability and stability of ARM platform. Using multi-threaded software design, this system is able to monitor the vibration of bridge continuously for 24 h and real-time. System standard vibration and field monitoring on bridge experiments show that the precision of measurements is high and running is stable, which is suitable for application of structural health monitoring of bridges.