The Design and Implementation of an Embedded Paper Currency Characteristic Data Acquisition System

摘要：

The Paper Currency Characteristic Data Acquisition System is a real-time subsystem of bill acceptor system based on ARM and uClinux,but uClinux can not meet the real-time requirement of the data acquisition system.After considering the characteristic of uClinux and the hardware of the data acquisition System,a method for improving the real-time ability of the data acquisition system is proposed by reference the architecture of RTLinux.A real-time control layer is introduced into thissystem to control hardware interrupts.The Paper Currency Characteristic data acquisition task is put into kernel level as a high priority task of the real-time control layer,and uClinux is regarded as a low priority task of the control layer,and they are scheduled by the real-time control layer. In experiments,the improved Paper Currency Characteristic Data Acquisition System can meet the real-time requirement.

关键词： embedded system paper currency recognition data acquisition

作者: Jianbiao He Zhigang Hu Pengcheng Xu Ou Jin Minfang Peng

作者单位: School of Information Science and Engineering Central South University ChangSha,410083,China College of Electrical and Information Engineering Hunan University ChangSha,410082,China

会议类型: 国际会议

会议名称: 2008 IEEE International Conference on Onformation and Automation(IEEE 信息与自动化国际会议)

会议地点: 张家界

会议语种:英文

页码: 1021-1024

在线出版日期: 2008-06-20（万方平台首次上网日期，不代表论文的发表时间）