基于FPGA超声测距系统的改进  

Improved method which FPGA design of ultrasonic distance measurement system

作　　者：杨兆飞[1] 司洋[1] 

机构地区：[1]中北大学信息探测与处理技术研究所,山西太原030051

出　　处：《电子测试》2012年第8期39-42,共4页Electronic Test

摘　　要：本文介绍了一种基于FPGA超声波测距系统的改进方法。文中的控制模块为黑金开发板,并且对其搭建了外围的硬件电路。目前测距模块主要是以单片机为主,这样的模块存在一些不足,如晶振频率不高、程序不宜修改和测量精度不高,并且相关的FPGA程序只有理论的研究,在实际中不能够实现相对应的功能。针对这些问题,本文主要是对现有的软件进行改进,使用了FPGA,使程序模块化,简单化。This paper describes an improved method which FPGA design of ultrasonic distance measurement system.The control module made of Black gold development board,and set up external hardware circuit.In recently,distance measurement module is mainly with a MCU,this module has some shortcomings,including,not have high frequency,the program should not modify,not have high the measurement accuracy.Usually the FPGA program is not work,they are only a theory.Above all these issues,this paper is to improve the existing program,made it more modular and more simplified in using FPGA.

关 键 词：FPGA 超声波测距 VHDL 超声波 

分 类 号：TP274.53[自动化与计算机技术—检测技术与自动化装置]