標(biāo)題: 工業(yè)現(xiàn)場控制屬于強實時系統(tǒng)還是弱實時系統(tǒng),？為什么 [打印本頁] 作者: Laura哦呵呵 時間: 2020-2-24 22:18 標(biāo)題: 工業(yè)現(xiàn)場控制屬于強實時系統(tǒng)還是弱實時系統(tǒng)？為什么 大家好,，最近老師留了個題目（如題),，我搜了一些回答，但還是不太理解,，請大家?guī)兔c撥一下,。謝謝！作者: ITALPLANT精密輸送系統(tǒng) 時間: 2020-2-25 07:25
A system is said to be real-time if the total correctness of an operation depends not only upon its logical correctness but also upon the time in which it is performed. Real-time systems, as well as their deadlines, are classified by the consequence of missing a deadline:
Hard – missing a deadline is a total system failure.
Firm – infrequent deadline misses are tolerable but may degrade the system's quality of service. The usefulness of a result is zero after its deadline.
Soft – the usefulness of a result degrades after its deadline, thereby degrading the system's quality of service.作者: 魍者歸來 時間: 2020-2-25 09:31
工業(yè)現(xiàn)場控制,，這個范圍太大了,。