新型包装印刷机存储系统的设计与应用

发布时间：2018-02-01 21:26

本文关键词： 包装印刷机文件系统 FAT IIC总线油墨温压曲线　出处：《辽宁师范大学》2012年硕士论文　论文类型：学位论文

【摘要】：随着我国经济的增长以及世界加工制造业重心向我国转移,促使我国的包装印刷业得到快速的发展。用户对于包装印刷品的质量要求越来越高,着眼于目前包装印刷业的发展形势,只有及时推出新一代高速、高精度包装印刷设备,才能在激烈的市场竞争中占有有利的地位。在实际印刷作业过程中,包装印刷机既可能工作于联机环境下也可能工作于脱机环境下,脱机环境下包装印刷机在接收完上位PC机的图像数据和印刷参数后便脱离PC机,独立进行包装印刷,这时图像数据需要一定的空间存储和管理。由于印刷机工作环境的复杂多变性,致使喷头内部墨腔的温度不断改变,为了保证印刷图像有比较清晰的视觉效果,需要根据外部温度的变化结合油墨温压曲线实时的控制喷头的驱动电压。针对包装印刷机系统中图像数据存储的需求,本文仔细研究和分析了嵌入式环境下文件系统设计的要点,设计出基于FAT格式的文件系统。为了最大限度确保FAT表的安全性,系统设计时将维护多份FAT表,一旦主表遭到破坏,可以马上通过从表恢复数据。由于存储介质自身无法确保文件系统的可靠性,系统设计时在坏块管理和磨损均衡方面加以弥补,使所设计的文件系统结构紧凑、功能健全,能有效的管理和维护系统的图像数据。针对包装印刷机系统中油墨温压曲线的存储,本文设计规定每个喷头控制板的驱动芯片中只存储当前所使用的油墨温压曲线及一系列参数,在系统初始化时,根据实际使用情况来决定是否更新喷头参数,此种设计不仅节约存储空间还有利于喷头的更换和参数的更新。最后,本文重点介绍了基于ⅡC总线配置喷头参数和油墨温压曲线的软硬件设计过程,实现了主控制系统对多个喷头的高效管理和精确控制。
[Abstract]:With the economic growth of our country and the shift of the world processing manufacturing center to our country, the packaging and printing industry in our country has been developed rapidly. In view of the current development situation of packaging and printing industry, only by introducing a new generation of high speed and high precision packaging printing equipment in time can it occupy a favorable position in the fierce market competition. In the actual printing process, the packaging printing machine may work in the on-line environment or in the offline environment. After receiving the image data and printing parameters of the upper PC, the packaging printing machine leaves the PC and carries on the packaging printing independently under the offline environment. At this time, the image data need some space storage and management. Because of the complex variability of the working environment of the printing press, the temperature of the ink chamber inside the nozzle is constantly changing, in order to ensure that the printing image has a relatively clear visual effect. Need according to the change of external temperature and ink temperature-pressure curve real-time control of the nozzle drive voltage. Aiming at the requirement of image data storage in packaging printing machine system, this paper studies and analyzes the key points of file system design in embedded environment. Design a file system based on FAT format. In order to maximize the security of FAT tables, the system will maintain multiple FAT tables, once the main table is broken. Data can be recovered from the table immediately. Because the storage medium itself can not ensure the reliability of the file system, the system is designed to make up for the bad block management and wear balance, so that the designed file system structure is compact. The function is sound, can manage and maintain the image data of the system effectively, aiming at the storage of the printing ink warm pressure curve in the packaging printing machine system. In this paper, it is stipulated that only the ink temperature and pressure curve and a series of parameters are stored in the drive chip of each nozzle control board. When the system is initialized, it is decided whether to update the spray head parameters according to the actual use. This design not only saves storage space, but also helps to replace the nozzle and update the parameters. Finally, this paper focuses on the hardware and software design process of configuration of nozzle parameters and ink warm pressure curve based on II C bus. The high efficiency management and accurate control of multiple sprinklers are realized by the master control system.
【学位授予单位】：辽宁师范大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TS851.6;TP333

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