| Summary: | 碩士 === 國立臺灣科技大學 === 營建工程系 === 106 === There are many bridges in Taiwan. The cost of inspection and safety evaluation process is expensive. In general, one of bridge detection methods is to use Taiwan Bridge Maintenance Management System, “TBMS-D.E.R. & U. “. This method is a visual inspection evaluation process and is operated by human, possibly, resulting in many errors. Alternatively, frequency-based method such as ambient vibration method is also available. If frequency-based method is adopted, the cost of bridge maintenance may increase.
One of the main ideas of this research is to use Arduino microcontroller connecting to accelerometer. By utilizing the Zigbee wireless technology, it will activate the warning light equipment, which is setting on the bridge, if the measured ground acceleration is greater than the yielding acceleration. In addition, if the reduction of bridge frequency derived from the measured accelearions, which is recorded using SD card, the waring system will be activated as well. The cost of the developed module is about NTD 3000, which significantly reduces expense.
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