组合秤称重模块优化方法研究  

Research on optimizing method of combination scale weighing module

作　　者：安世奇[1] 穆庆霖 An Shiqi;Mu Qinglin(College of Automation and Electronic Engineering,Qingdao University of Science and Technology,Qingdao 266100,China)

机构地区：[1]青岛科技大学自动化与电子工程学院,青岛266100

出　　处：《电子测量技术》2019年第24期57-62,共6页Electronic Measurement Technology

摘　　要：针对组合秤由于振动等原因造成的精度低、称重数据不稳定等问题,对组合秤称重模块进行优化。首先对称重模块进行了全新设计,其中,硬件方面对放大电路、AD转换电路、MCU单片机外围电路及电源进行了规范化的设计,软件方面完成了控制逻辑、数据传输以及通讯协议的编写。然后,在硬件设计完成的基础上,采用小波去噪方法对称重数据进行滤波处理,并在现场对该模块的性能进行测试,结果显示该模块能够满足单斗每200 g偏差小于0.1 g的精度要求,可应用于实际工业生产中。Aiming at the problems of low precision and unstable weighing data caused by vibration, the weighing module of combined scale is optimized. Firstly, the weighing module is completely new designed. In hardware, the amplifier circuit, AD conversion circuit, MCU peripheral circuit and power supply are standardized. In software, the control logic, data transmission and communication protocol are completed. Then, on the basis of hardware design, the weighing data are filtered by wavelet denoising method, and the performance of the module is tested on the spot. The results show that the module can meet the accuracy requirement of less than 0.1 g per 200 g deviation of a single bucket, and can be applied in actual industrial production.

关 键 词：称重模块 小波去噪 数据传输 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]