基于RFID的信息集成柔性制造系统设计研究

摘要

设计基于射频识别(RFID)技术信息集成的小型柔性加工制造系统.通过射频识别技术容易实现各控制子系统的信息集成和交换.将各子系统中所需的关键信息写入射频标签中,射频读写器扫描读取工件上附着的标签.上位机对信息进行处理之后,实时地把控制信息送达各控制子系统.各控制系统的状态信息也可及时反馈到上位机,由上位机把信息写入到标签中,以更新标签中的内容.数控机床的加工代码全部按不同的文件名形式存入代码库中,上位机通过射频读写器读取不同工件上的标签中的信息来决定调用相应的加工代码文件,控制机床加工工件.因此当工件改变时,并不需要对生产线做大范围的调整,实现一定程度上的柔性制造.%Based on radio frequency identification (RFID) technology, a small information integrated flexible manufacturing system is designed. Different control subsystems can be easily integrated and exchange their information with RFID. Key information needed is written into RFID tags, and RFID readers read the tags attached to the workpieces for information. After processing the information, the host computer send it to the control subsystems. The status information of the control subsystems can also be fed back to the host computer, and write the tags in order to update the information. Processing codes for machine tools are saved in the code database with different file names, and the host computer calls conrresponding file names after the RFID readers read the tags for the workpieces. Although workpieces are different, it is not required to adjust the production line largely, and a certain degree of flexible manufacturing is achieved.