(完整版)基于STM32的语音电子秤的设计本科毕业设计

基于STM32的语音电子秤的设计

学生专业：

测控技术与仪器

学生姓名： 导师姓名：

张城照 张福才

摘 要

质量是测量领域中的一个非常有意义的被测参数，称重技术的发展从古至今被人们所重视，称重在日常生活中随处可见，如首饰店测量贵金属重量，工厂原料定量配比，市场上称菜，货车过地磅等。秤是最普通、最普及的计量设备。传统的机械秤体积庞大，结构繁琐，易受外界挤压、碰撞变形，在长期使用中由于金属腐蚀，机械磨损会给机械秤带来不可逆的损害直接导致机械秤精度下降。

电子秤相比机械秤拥有诸多优点，例如成本低、响应快、稳定、高智能等。随着社会的迅猛发展，人们的需求日益多元化，多元化的电子秤将具有极其广阔的市场前景。

本设计采用STM32F103作为主控芯片，外接电桥式称重传感器和24位高精度A/D转换芯片来完成称重，以TFT液晶屏和触控芯片实现人机交互，独特的语音播报功能给本设计增添了个性特点，实时温度和实时时钟方便了使用者的日常生活。

关键词 质量 电子秤 STM32F103 语音

Abstract

Quality is an important parameter to measured in the field of measurement, weighing technology is paid great attention by people since ancient times, weighing can be seen everywhere in our daily life, such as jewelry shop measuring weight of precious metals, quantitative ratio of raw materials, weighing food on the market, trucks pass loadometer, etc. Balance is the most common, the most popular measuring equipment. The traditional mechanical scale is large, the structure is complicated, vulnerable to external extrusion, collision deformation, due to the metal corrosion in the long-term use, mechanical wear will bring irreversible damage to mechanical scale directly led to the decrease of the precision of mechanical scale.

Electronic scale mechanical scale compared with many advantages, such as low cost, fast response, stability, high intelligence, etc. With the rapid development of society, the demand of people increasingly diversified, diversified electronic scale will be extremely broad market prospect.

This design uses STM32F103 as the master control chip, external bridge type weighing sensors and 24 bit high precision A/D transformation chip to complete the weighing, TFT LCD screen and touch chip to realize human-machine interaction, unique speech function add individuality to the design characteristics of real-time