基于单片机的人体智能电子秤设计
摘要 本系统主要由AT89S52单片机来控制，测量物体重量部分由称重传感器及A/D转换器组成，加上显示单元，当被称物体放置在秤台上时，称重传感器将物体的重量转换成与被称物体重量成一定函数关系(一般成正比关系)的电信号(电压)。此信号由放大电路进行放大、经滤波后再由模/数（A/D）器进行转换，数字信号再送到微处器的CPU处理，外围附以称重电路、显示电路、体胖瘦判断功能，语音告知等构成智能称重系统电路板，从而实现自动称重系统的各种控制功能。 铅封线
关键词 AT89S52 称重传感器 A/D转换器 L布卫生巾at89s52最小系统CD显示器
THE HUMAN BODY INTELLIGENCE ELECTRONIC SCALE DESIGN BASED ON SINGLE CHIP MICROCOMPUTER
Xuzhenyue
2006892014，Automation major，2006，
Dept.of Information Engineering,Chengyi College of Jimei University后藤美帆
ABSTRACT The system is mainly controlled by AT89S52 single chip microcomputer. The parts weighing the article consist of weighing sensor, A/D converter and display unit. When the article to be weighed is put on the weighting platform, the weighting sensor will be converted the article weight into an electric signal (voltage) having a certain function relationship (generally a direct proportion) with the weight of the article being weighed. The signal will be amplified by amplifying circuit and converted by an analog-to-digital (A/D) converter after filtering. The digital signal will then be sent to the CPU of micro-processor for processing. with weighing circuit, displaying circuit, fat and shin body judgment function, voice function being the boundary parts, so as to form a circuit board of intelligent weighing system and realize the various weighing functions of weighing system. In a way, the electronic scale adopting this design can satisfy the application requirements to a great extent.
KEYWORDS 运动地垫 AT89S52 Weighing sensor A/D converter LCD displayer
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