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基于avr单片机的电子秤毕业设计.doc

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基于avr单片机的电子秤毕业设计.doc

上传人:1017848967 2016/8/3 文件大小:698 KB

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基于avr单片机的电子秤毕业设计.doc

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文档介绍:1 摘要电子秤是将检测与转换技术、计算机技术、信息处理、数字技术等技术综合一体的现代新型称重仪器。它与我们日常生活紧密结合成为一种方便、快捷、称量精确的工具,广泛应用于商业、工厂生厂、集贸市场、超市、大型商场、及零售业等公共场所的信息显示和重量计算。电子称主要以单片机作为中心控制单元,通过称重传感器进行模数转换单元,在配以键盘、显示电路及强大软件来组成。电子称不但计量准确、快速方便, 更重要的自动称重、数字显示,对人们生活的影响越来越大,广受欢迎。本系统针对电子称的自动称重、数据处理等进行了设计和制作。为了阐明用单片机是如何对采样数据进行处理,对数据的采集和转换、计算问题进行了研究, 讨论了单片机控制系统中关键的计算问题。本文在给出智能电子称硬件设计的基础上,详细分析了电子称的软件控制方法。单片机控制的电子称结构简单,成本低廉,深受人们的喜爱,本文将对此进行详细讨论。关键词:电子称;单片机;称重传感器 2 Abstract Intelligent electronic scale isthe detection and conversion technology, computer technology, information processing, digital technology, anintegrated modern technology ofnew weighing equipment. Itisclosely integrated with our daily lives into aconvenient, fast, precision weighing instrument, widely used mercial, plant health plant, country markets, supermarkets, shopping malls, and retail and other public places, information display and weight. Intelligent Electronics said the key toSCM asthe central control unit, through the weighing sensor analog-digital conversion unit, inthe panied keyboard, display circuit and powerful software ponent. Said not only accurate measurement ofthe electronic, fast and convenient, more importantly, automatic weighing, statistics show that bythe majority ofusers. Intelligent Electronics said that aseasy tocarry, easy touse, the impact onpeople's lives more and more. This system isknown for the electronic automatic weighing and data processing ofresearch. Toillustrate how touse the MCU issampling data processing, data acquisition and conversion, computational problems studied. Discuss the key SCM system calculation. This paper presented the hardware design ofintelligent electronics that, based ondetailed analysis ofthe electronic control, said the software. Asthe structure ofmicroprocessor controlled electronics that simple, low cost and very popular, this will bediscussed indetail. Keywords: electronic scale; MCU ;Load sensor 3 第一章绪论 引言在我们生活中经常都需要测量物体的重量,于是就用到秤,但是随着社会的进步、科学的发展,我们对其要求操作方便、易于识别。随着计量技术和电子技术的发展,传统纯机械结构的杆秤、台秤