Maximally Permissive Supervisory Control of Timed Discrete-Event Systems under Partial Observation ⁎This work was supported by the National Natural Science Foundation of China (61803259, 61833012) and Shanghai Jiao Tong University Scientific and Technological Innovation Funds. Issue 2 (2020)

• Record Type: Journal Article
• Authors: Yang, Ziteng; Yin, Xiang; Li, Shaoyuan
• Is Part Of: IFAC-PapersOnLine. Volume 53:Issue 2(2020)
• Page Start: 1770
• Page End: 1775
• Publication Date: 2020
• Subjects: Timed Discrete Event Systems -- Supervisory Control -- Partial Observation; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2020.12.2318
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: In this paper, we investigate the supervisory control problem for timed discrete-event systems (TDES) under partial observation. In the timed setting, the system consists of both standard logical events and time event, where the former can be disabled directly by the supervisor if it is controllable while the latter can only be preempted by forcing the occurrences of forcible events. We consider a general control mechanism where the supervisor can choose which events to force dynamically online at each instant. The design objective is to synthesize a maximally-permissive supervisor to restrict the behavior of the system such that the closed-loop language is within a safe specification language. Effective procedure is presented to synthesize such a supervisor. To our knowledge, how to synthesize a maximally-permissive partial-observation supervisor has not been solved for timed DES. We provide a solution to this problem under a general control mechanism.