一种简易家用地震报警仪的设计

Design of a simple household earthquake alarming instrument

本文以MSP430系列单片机为控制器,辅以必要的模拟电路,设计了一种简易的家用地震报警仪。本设计采用均衡滤波对原始地震反射地层吸收衰减进行有效补偿,使地震反射波的特征参数得到明显改善,采用高阶低通滤波器将高频段噪声滤除,采用12位A/D转换提高系统对信号的分辨率。本设计硬件均采用模块化的设计思路,使得设计具有移植性和可扩展性。

Using an MSP430 series single-chip microcomputer as the controller, supplemented with necessary analog circuits, the author designed a simple household earthquake alarming instrument. This design uses a balanced filter attenuation to compensate the original seismic stratigraphy, the parameters of seismic reflection wave can be obviously improved; the high order low pass filter can remove the high-frequency noise, and a 12 bit A/D converter is used to improve the signal system. The hardware of this design are modular, and the design has remarkable portability and scalability.