An Embedded System of Bridge Stress Monitoring Based on ARM9 and Zigbee

With the growing number of large-scale bridge construction as well as the increasing complexity of form and function in recent years, the bridge´s structural health monitoring technology has become increasingly important. This work presents an ARM9-based embedded bridge stress monitoring system. The system uses the measuring principle of vibrating wire sensors to collect bridge stress change, and the wireless transmission of data will be completed by the Zigbee. The stress acquisition module driver was analyzed and designed under Linux. Depend upon the embedded GUI solutions-QtEmbedded, a highly effective, stable GUI application has been designed. The new design is suitable for the real-time bridge stress monitoring, thus making an important towards low-cost and portable systems.