数字电子秤的设计毕业设计 下载本文

毕 业 设 计(论文)

题 目:数字电子秤的设计

系 : 专 业:

班 级: 学 生: 学 号:

指导教师:

职称:讲 师

摘 要

电子秤是目前城市商店中应用较广的称量、计价工具。随着微电子技术的应用,市场上使用传统称重工具已经 满足不了人们的需求。为了改变传统称重工具在使用上存在的问题,本设计中将智能化、自动化、人性化用在电子秤重的控制系统中。本系统主要由单片机来控制。测量物体重量部分由电位模拟压力传感器及A/D转换器组成,加上显示单元,以及总价计算及显示单元。

关键词: SST89E564RD; A/D转换器; BCD码转换 ;LED显示 ;键盘输入; 乘除法计算

ABSTRACT

Electronic scale is now wide application in urban stores of weighing, valuation tools. As microelectronics technology application, on the market to use traditional says heavy tools already can't satisfy the people's needs. In order to change traditional weighing tools using on existing problems, the design of will intelligence, automation and humanized used in electronic scales heavy control system. This system mainly by the single-chip microcomputer to control. Measuring the weight of the body parts from potential simulation pressure sensor and A/D converter component, plus display unit, and total price calculation and display unit, times embodies electronic filling points in the advanced automation is largely meet the application requirements.

Keywords: SST89E564RD A/D converter BCD conversion LED display, keyboard input

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