涉及的嵌入式网络化装置是一个具有以太网接口的分布式输入输出装置，主要应用于工业自动化控制领域，对大型设备实施远程监控。
The embedded network device resarched is a distributed I/O device which has an ethernet interface, it is applied mainly in industrial automatic control field to monitor heavy-duty equipments remotely.
通用串行总线(usb)是目前PC外设接口的主流总线标准，并迅速在工业自动化仪器仪表中得到应用。
USB (Universal Serial bus) is a mainstream bus standard of PC peripheral interface, which extends its applications to industrial automatic instruments.
文章介绍了COM/DCOM接口技术、自动化技术以及访问组件的方式，然后用一个COM在MATLAB中的应用实例说明了它的具体应用。
This paper introduces COM/DCOM interface technology, automation and the modes of accessing components, and then shows its concrete application by a COM application instance in MATLAB.
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