中文摘要：

结合uClinux操作系统和S3C4510B的特点，设计了以中断方式实现的实时特征采集系统，通过开辟非实时程序与实时特征采集系统共享的存储区，将大大地提升纸币识别系统的并发处理能力。但是uClinux操作系统并不能完美地满足实时采集系统对实时性的要求。为了能使用功能强大并且免费的uClinux，有必要改进uClinux的中断延迟时间，提出了改进方法。经过改进后的uClinux可以满足要求。

英文摘要：

According to the Characteristic of uClinux and S3CA510B,designed a real-time data acquisition system which use interrupt. A memory area was set up which was shared by non-real time programs and this real-time data acquisition system , and it could greatly improve the ability of concurrent processing of this bill acceptor system. But the real time of uClinux could not perfectly meet the request of this real-time data acquisition system. In order to make use of uClinux which was free and had powerful function. It was necessary to improve its interrupt latency, and a method was brought forward, uClinux can meet the request of this real-time data acquisition system by using this method.