摘要
为实现对次声波的远距离监测,设计了一种基于STM32的高精度、高动态范围的无线次声波传输系统。系统前端采用基于Δ-Σ技术的24位精准模数转换器ADS1246和八阶椭圆形低通滤波器MAX293,因而实现较强的数据采集和处理能力。主控制器采用STM32,提高了系统的可靠性,同时降低了系统的功耗。通过网口连接路由器上网,实现数据的无线传输。上位机设计采用LabVIEW软件平台,通过串口与主控制器实现通信,完成系统的参数配置。
A design of wireless infrasound data acquisition system with high precision and wide dynamic range based on STM32 is presented and makes the remote monitoring for infrasonic feasible . ADS1246 , a 24bits highly precision △-∑ ADC is used along with the 8th-order,lowpass ,elliptic switched-capacitor filters MAX293 at the front-end of tile system contributes to the ef- （＇ective data acquisition and processing ability.Using STM32 as the MCU chip enhances the reliability also reduces the power con- sumption. Data wireless transmission is achieved through connecting the network interface to router and access the network. The host PC programmed in the LabVIEW software ,and sends orders to the MCU via the USART.
出处
《电子技术应用》
北大核心
2014年第4期92-95,共4页
Application of Electronic Technique
