Modular Composition of Synchronous Programs: Applications to Traffic Signal Control

All authors:
Zennaro, M., Sengupta, R.
Host organisation: CoE Berkeley, USA
Publication year: 2006
Published in:
Working Paper, Intelligent Transportation Studies, UCB‐ITS‐VWP‐2006‐1
Research theme: Management and Control
distributed synchronous programming, modular compilation, Simulink
This paper describes a modular compilation scheme for distributed synchronous programming. The approach is first described mathematically and then implemented as a library to distribute the program Simulink. Application of the scheme is illustrated by developing a control system to coordinate traffic signals. The purpose of the research is to advance programming tools for control of large networked systems. For example, USDOT's Vehicle Infrastructure Integration Initiative is an ad-hoc wireless infrastructure to create the networked roadway. This will enable distributed operation of the traffic control infrastructure. Hence our study of the signal controls application. Typically, these are large-scale systems with a centralized computing architecture controlling thousands of devices connected to a traffic management centre over leased telephone lines. Other areas familiar to the authors that motivate this paper are control for collaborating unmanned air vehicle systems and roadside vehicle systems for crash avoidance. The control engineers working on these systems are almost always familiar with Simulink and typically write the first compliable specification of control in the language. We try to extend Simulink through the compilation scheme in this paper to program networked control systems because it is well established as a high-level specification language in the control community.
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