Microservers are networked embedded devices that accept user tasks

on demand and execute them on real world information collected

by sensors. Sharing intermediate sensing and computing results

among these tasks is critical for optimal resource utilization. This

paper presents a service-oriented microserver runtime — SHARE

and its semantics-based task management design. Event semantics

checking and conversion are based on a signal type system (STS)

that captures both data values and service triggering. Based on the

compatibility of event semantics, redundant computations in uncoordinated

tasks are removed from the runtime. A prototype of

SHARE has been experimented with a parking garage sensor network

executing three uncoordinated user queries.

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In: Proceedings of the 5th ACM Conference on Embedded Software (EMSOFT 2005)

Publisher: Association for Computing Machinery, Inc.
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