Early Earthquake Warning Systems

• Main Authors: Tzu-Ho Wang, 王咨賀
• Other Authors: 王多柏
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/ttyway

碩士 === 國立臺北科技大學 === 電子工程系 === 106 === This dissertation is a practical implementation of the wireless seismic system. The triaxial acceleration sensor to detect seismic waves. DC is removed through the AC capacitors. The temperature-dependent DC level is removed, and the signal is amplified to maximize the resolution of the analog-to-digital converter. The signal is converted to a digital signal by using a 16-bit analog to digital converter. The Raspberry Pi analyzes the data and uses the network to transfer to a computer server. After the Raspberry Pi analyzed the data, the Borland C++ Windows software was transmitted to the computer server using the Internet. The software can also be transmitted to the computer using Modbus RTU for data analysis and display of results. When the earthquake occurs, this design can detect the guided wave (P wave) before the earthquake, perform data analysis and achieve control of external circuits (turn off the gas and the power supply) to achieve disaster reduction effect.