MINOS是英国煤炭局(NCB)的标准的计算机远程监测控制系统,它使用第一级计算机做数据采集。这些第一级计算机设备仅具有有限的存贮能力,比如只能存一个星期的生产摘要数据。一个或多个第一级计算机系统能汇接到第二级计算机,这样就提供一个煤矿管理信息系统——MIS。这个第二级计算机系统具有在硬磁盘上长期存贮数据的功能,并能完成 MINOS is the standard computer remote monitoring and control system of the British Coal Board (NCB), which uses a first-level computer for data acquisition. These first-level computing devices have limited storage capacity, such as production summary data for only a week. One or more first-level computer systems can converge to the second-level computer, thus providing a coal mine management information system - MIS. This second-level computer system has the ability to permanently store data on hard disks and can do it