By Alessandro Abate, Alessandro D’Innocenzo, Maria D. Di Benedetto, Shankar S. Sastry (auth.), Magnus Egerstedt, Bud Mishra (eds.)

This quantity comprises the lawsuits ofthe eleventh Workshop on Hybrid platforms: Computation and regulate (HSCC 2008) held in St. Louis, Missouriduring April 22–24,2008.The annual workshop on hybrid structures specializes in researchin - bedded,reactivesystemsinvolvingtheinterplaybetweensymbolic/switchingand non-stop dynamical behaviors. HSCC draws educational in addition to business researchers to switch details at the most recent advancements of functions and theoretical developments within the layout, research, keep an eye on, optimization, and implementation of hybrid platforms, with specific cognizance to embedded and networked regulate platforms. New for this 12 months used to be that HSCC was once a part of the inaugural CPSWEEK (Cyber-Physical platforms Week) – a co-located cluster of 3 meetings: HSCC, RTAS (Real-Time and Embedded expertise and purposes Sym- sium), and IPSN (International convention on details Processing in Sensor Networks). the former workshops within the sequence of HSCC have been held in Berkeley, united states (1998),Nijmegen,TheNetherlands(1999),Pittsburgh,USA(2000),Rome,Italy (2001), Palo Alto, united states (2002), Prague, Czech Republic (2003), Philadelphia, united states (2004),Zurich, Switzerland (2005) , Santa Barbara,USA (2006), and Pisa, Italy (2007). we want to thank this system Committee participants and the reviewers for an exceptional task of comparing the submissions and collaborating within the on-line application Committee discussions. we're thankful to the steerage Committee for his or her important assistance and help. we might additionally prefer to thank Patrick Martin for placing jointly those complaints, and Jiuguang Wang for constructing and keeping the HSCC 2008 site. January 2008 Magnus Egerstedt Bud Mishra association HSCC 2008 was once technically co-sponsored via the IEEE keep watch over platforms Society and arranged in cooperation with ACM/SIGBED.

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Furthermore, we assume that the link L1 is also traversed by cross-traffic corresponding to a multimedia application whose source and destination are attached to nodes 3 and 0, respectively. The network parameters are the same as those in Sect. 5. The speed is sampled at constant intervals of 2ms, and the samples are inscribed into packets of size 100B. The multimedia source starts injecting packets in the network at time 2sec and lasts for only 1sec. The multimedia packets are 1000B. We consider the effect of cross-traffic on the drive train NCS for two cases: when the multimedia source transmits at a constant rates of 625Kbps and 715Kbps.

5(c) and 5(d)). For more experimental results utilizing the two agents NSCSPlant and NSCSController, see [20,2,21], where we experimented with a larger number of NCSs. 75 50 100 Time (seconds) 150 (d) Fig. 5. (a) The input signal, R(t), the two plants are instructed to follow. (b) The transmission/sampling rates r0 and r1 for ncs0 and ncs1 . (c) and (d) The plants states x1 (t) and x0 (t), respectively, while tracking the input signal R(t) in (a). Co-simulation Tools for Networked Control Systems 6 25 Modelica/ns-2 Integration Although the Agent/Plant has much flexibility, modeling of large physical systems, especially those incorporating systems of subsystems and those including hybrid dynamics, becomes a tedious, and perhaps an error prone, task.

2 Background and Related Work There have been well-developed simulation tools that target the simulation of either networks or physical systems separately. For example, networks simulators include ns-2 [7] and OMNet++ [8]. On the other hand, simulations of physical and embedded systems utilize hybrid systems tools, which allow the construction and the simulation of systems involving continuous and discrete dynamics. Examples of hybrid systems simulation tools include Modelica simulation environments [6], Simulink [9], Ptolemy [10], and adevs [11].

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