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Shuttle based storage and retrieval systems (SBS/RS) attract continuous research attention because of their ability to achieve a high throughput. In an SBS/RS system, lifts are regarded as the bottleneck that hinder reaching higher throughput and therefore require subtle control polices. In this paper, the scheduling of two non-passing lifts on a common rail SBS/RS has been studied with consideration...
In this paper we discuss the end-to-end schedulability analysis for the bi-directional multistage pipeline systems, in which the arriving tasks could traverse the pipeline nodes in either of the two opposite directions. By accounting for the task execution overlap among nodes, we could derive an end-to-end delay bound formula for each task, which transforms the schedulability analysis of the task...
There is more and more the ubiquitous use of different types of real-time embedded (RTE) systems in our daily lives with rapid developments in science and technology. Because design faults might result in injury or even death to human beings who are using these systems, how to ensure the RTE systems are really safe is very important. The schedulability problem is a very important problem needs to...
With rapid developments in science and technology, we now see the ubiquitous use of different types of safety-critical systems in our daily lives such as in avionics, consumer electronics, and medical systems. In such systems, unintentional design faults might result in injury or even death to human beings. To make sure that safety-critical systems are really safe, only using the traditional methods...
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