基于STM32的雷达物位检测系统设计  

Design of Radar Level Detection System Based on STM32

作　　者：陈阿辉 黄继伟[1] 柯玉山 邱菁[1] CHEN A-hui HUANG Ji-wei KE Yu-shan QIU Jing(College of Physics and Information Engineering,Fuzhou University ,Fuzhou 350116,China)

机构地区：[1]福州大学物理与信息工程学院,福州350116

出　　处：《自动化与仪表》2017年第6期28-31,38,共5页Automation & Instrumentation

基　　金：福建省科技计划重点项目(2014H0026)

摘　　要：该文设计了一款雷达物位检测系统,用于检测工业场合大型罐体或储料仓的物料存储高度。该系统以STM32F407作为信号处理和控制的核心,通过ADC接口对雷达收发模块的差频输出信号进行数据采样,并对数据做FFT+Chirp-Z联合算法处理。系统根据计算得到的测距信息判断当前物位是否到达警戒物位,以及是否输出报警信号。该物位检测系统可以满足实际应用要求,并且结构简单,测距精度高。A radar level detection system is designed to detect the height of material storage in large scale tanks or storage silo in the industrial occasions. This system takes STM32F407 as the core of signal processing and control,the data sampling of the differential frequency output signal of the radar transceiver module is realized by ADC interface,and the data are processed by FFT ＋Chirp-Z algorithm. According to the calculated distance information,the system judges whether the current level reaches the alert level and whether the alarm signal is output. The system meets the requirements of practical application,and has the characteristics of simple structure and high precision.

关 键 词：物位检测 STM32F407 数据采样 FFT+Chirp-Z联合算法 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置] TB921[自动化与计算机技术—控制科学与工程]