基于STM32的RS485总线多路超声波测距系统  

Multi-channel Ultrasonic Distance Measuring System of RS485 Bus Based on STM32 Microprocessor

作　　者：郑昆 侯卫国[1,2] 姚婧 华扬 ZHENG Kun1,HOU Weig-uo1,2,YAO Jing3,HUA Yang(1.Wuhu Laboratory of the Fifth Electronics Research Institute of the Ministry of Industry and Information Technology,Wuhu 241003,China;2. National Engineering Research Center of Novel Equipment forPolymer Processing,South China University of Technology,Guangzhou 510640,China;3. Key Laboratoryof the Fifth Electronics Research Institute of the Ministry of Industry and Information Technology,Guangzhou 510507,Chin)

机构地区：[1]工业和信息化部电子第五研究所芜湖实验室,安徽芜湖241003 [2]华南理工大学聚合物新型成型装备国家工程研究中心,广东广州510640 [3]工业和信息化部电子第五研究所重点实验室,广东广州510507

出　　处：《仪表技术与传感器》2018年第6期79-82,共4页Instrument Technique and Sensor

摘　　要：研制了一种以STM32单片机作为超声波传感器控制核心及采用RS485分布式多从站布局的多路超声波测距系统的设计方案,介绍了系统的工作原理、硬件电路构成、软件设计思想及通信协议机差错控制。与传统超声波测距系统相比,该系统可更好地应用在移动机器人或智能汽车的避障系统中,可简化其控制系统的硬件及软件资源。A multi-channel ultrasonic distance measurement system with STM32 microprocessor as the core and the use of RS485 distributed multi-slave layout is presented. The hardware circuit,operating principle,software design method,communication protocols and error control are proposed. Compared with the traditional ultrasonic distance measurement,using the measurement system in robot or smart car obstacle avoidance system simplifies the control system hardware and software resources.

关 键 词：STM32单片机 RS485总线 超声波测距 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]