基于USB2.0的红外图像数据采集系统

随着红外遥感技术的飞速发展,红外图像数据的实时采集和传输已成为必须研究的课题。基于USB20的图像数据采集系统的设计提出了2个方面的要求一方面,要求接口简单灵活且有较高的数据传输率;另一方面,由于数据量通常都较大,要求主机能够对实时数据作出快速响应,并及时进行分析和处理。在USB2.0协议中,数据传输速率可达到480Mbit/s,且传输稳定,能够满足图像数据的实时传输要求。本文提出了应用USB2.0作为红外图像采集的通讯接口,实现快速、实时的红外图像采集传输。

Inf rar ed image data collect ion system based on the technology of USB2. 0

With the rapid development of infrared telemetry, it is indispensable to collect and transmit infrared image data at real-time. There are two demands for system design: on one hand, the interface should be simple and flexible so as to get a high transmitting rate. On the other hand, because the amount of data is usually large, host computers are required to respond to real-time data rapidly and to analyze these data timely. In USB2.0 specification, data can be transferred at the speed of 480 Mbit/s, which can meet the request of real-time transmission of image data. This paper introduces to use USB2.0 as the communication interface to collect infrared image data so as to realize the real-time transmission of infrared image.