毕业设计（论文）-基于PLC的动态电子轨道衡设计.docx

北华大学毕业设计（论文） - PAGE \* MERGEFORMAT 57- 摘要 当今社会，随着生产、贸易、科技的快速发展，衡器技术由简单的计重向信息化、一体化发展。然而，衡器技术在向这个趋势发展的时候，计量的准确化、快速化的矛盾一直是困扰衡器技术发展的瓶颈。直到上世纪70年代，技术上逐步成熟的动态电子衡器的发展，它有效的解决了快速性、准确性一衡器技术的两个最重要的性能指标难以统一的问题。这对于解决工程中称重系统的实时称重.问题尤为重要。 动态电子轨道衡是动态称重技术中最常见的一种，本文介绍了动态称重的特色:动态电子轨道衡系统采用了WINDOWS操作系统作为平台，其强大的软件功能是有效的解决快速性和准确性统一问题的基础;用软件方法判别火车车型克服了硬件判别法故障率高的弱点。采用自动车号识别(AEI)技术，有效地解决了计量过程中人工抄???的弊端，杜绝了人工篡改计量数据的机会。提高了计量数据的真实有效性。动态轨道衡称重系统做到了数据自动上传、统计报表、存储、打印。本设计分别阐述了计量器具的发展，称重传感器的原理，动态电子衡器的设计原理与构成部分，PLC与组态王Wincc的通信，信号处理的方法，车型判别逻辑控制系统，自动车号识别系统的设计。 关键词:传感器;动态电子轨道衡;PLC;Wincc Abstract In todays society, with production, trade, and the rapid development of technology, weighing apparatus technology by simple account heavy information, to integration development. However, weighing apparatus in to the development trend of technology, the accurate measurement of the contradiction of the fund, has been a major instruments of the development of the technology bottleneck. Until the 1970 s, the technology is gradually mature dynamic electron weighing apparatus of development, it is effective to solve the faster and more accurate a weighing apparatus technology two of the most important performance to the problem of unity. This to engineering of the weighing system real time weighing. The problem is especially important. Dynamic electronic GuiDaoHeng dynamic weighing technology is the most common kind, this paper introduces the characteristics of dynamic weighting: dynamic electronic GuiDaoHeng system USES the WINDOWS operating system as a platform, its powerful software function is to effectively solve the problem of efficiency and accuracy unity based; With the software method judging the train car overcome the hardware discriminant method of high failure weakness. Adopt the automatic car number identification (AEI) technology, which can effectively solve the measurement process, artificial copy the disadvantages, and put an end to the measurement data of the artificial tamper wit