在线动态称重系统开发及质量采集算法研究

Development of online dynamic weighing system and research on weight acquisition algorithm

以包装生产线上连续在线动态称重及后续处理的功能为导向,从称重工作站的结构、控制系统、分拣机构、数据处理与保存方面进行研究。采用PLC、A/D模块、称重仪表、称重传感器、变频传送带控制等技术,开发出一套在线动态称重系统。系统采用区间采样、区间数值平均的算法,测量和计算动态数据,使产品的动态质量值与静态值之间的差值最小。在线称重系统可根据功能快速搭建,实现对产品的质量采集、对比及对产品的分拣、分装、包装等功能。系统可快速二次开发对接包装线所需要的功能,且构造简洁实用、成本低,质量采集的准确性高,应用前景广泛。

On-line dynamic weighing is an important part of the unpacked foods packaging production line,which can realize the functions of error prevention,leakage prevention,packing and filling.It was investigated the formation of the structure,control system,sorting mechanism,data processing and preservation of weighing workstation in this study,based on the function of continuous online dynamic weighing an subsequent processing in packaging production line.The interval sampling and numerical averaging methods were used to collect and calculate dynamic weight data,and the difference of the product between the dynamic weight value and the static were minimized.The system could be quickly built according to the function of achieving the weight of the product collection,comparison,sorting,packaging etc.Therefore,this system could be used widely for rapid secondary development of docking packaging line,with the simple structure,low cost and high accuracy.