Multi-level software reconfiguration for sensor networks

In-situ reconfiguration of software is indispensable in embedded networked sensing systems. It is required for re-tasking a deployed network, fixing bugs, introducing new features and tuning the system parameters to the operating environment. We present a system that supports software reconfiguration in embedded sensor networks at multiple levels. The system architecture is based on an operating system consisting of a fixed tiny static kernel and binary modules that can be dynamically inserted, updated or removed. On top of the operating system is a command interpreter, implemented as a dynamically extensible virtual machine, that can execute high-level scripts written in portable byte code. Any binary module dynamically inserted into the operating systems can register custom extensions in the virtual machine interpreter, thus allowing the high-level scripts executed by the virtual machine to efficiently access services exported by a module, such as tuning module parameters. Together ...

• Type: Conference
• Year: 2006
• Where: EMSOFT
• Authors: Rahul Balani, Chih-Chieh Han, Ram Kumar Rengaswamy, Ilias Tsigkogiannis, Mani B. Srivastava
• Keywords: Binary Module, Embedded Networked Sensing, EMSOFT 2006, Software Engineering, Virtual Machine