基于CAN网络的超声波测距模块设计  

Design of Ultrasonic Distance Measurement Module Based on CAN Network

作　　者：毛建国[1] 李芳培[1] 沈峘[1] 周华鹏[1] 柏方超[1] 李忠[1] 

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210016

出　　处：《压电与声光》2010年第5期874-877,共4页Piezoelectrics & Acoustooptics

基　　金：江苏省普通高校研究生科研创新计划基金资助项目(CX08B_044Z)

摘　　要：障碍物规避是智能车辆和移动机器人领域的重要研究内容之一。本设计以C8051F040单片机为核心,PCA82C250收发器与超声波传感器阵列相结合,实现基于CAN总线通信的超声波测距系统,并给出了工作原理及软硬件设计方法。此外,用温度补偿模块修正超声波传递误差,提高系统测量精度。实验表明,该系统具有测量数据准确,精度高,数据传递效率和利用率高等优点。能有效应用于障碍物测量中。Obstacle avoidance is one of the important researches in intelligent vehicle and mobile robot society.An ultrasonic distance measurement system,which was C8051F040 based MCU and PCA82C250 transceiver,the ultrasonic sensor array combining CAN bus communication was presented.The working principle and design method of hardware and software was discussed in detail.In addition,the compensation module was used to amend ultrasonic transmission error for improving system accuracy.Experiment results showed that the system had some advantages such as the distance data measured by the system is accurate,the high performance of data transmission etc.The system could be effectively applied to obstacle avoidance.

关 键 词：CAN总线 超声波传感器阵列 多目标定位 温度补偿 C8051F040 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TM85[自动化与计算机技术—控制科学与工程]