Mr. William Merrill Profile

William Merrill

at Sensoria Corp

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Author

Publications (2)

Proceedings Article | 18 September 2003 Paper

Energy-aware networked embedded systems for tactical unattended ground sensors

Fredric Newberg, Dustin McIntire, Brian Schiffer, Scott Valoff, William Merrill, Katayoun Sohrabi, William Kaiser

Proceedings Volume 5090, (2003) https://doi.org/10.1117/12.500737

KEYWORDS: Digital signal processing, Unattended ground sensors, Analog electronics, Software frameworks, Sensors, Power supplies, Embedded systems, Clocks, Signal processing, Control systems

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Proceedings Article | 7 August 2002 Paper

Open standard development platforms for distributed sensor networks

William Merrill, Katayoun Sohrabi, Lewis Girod, Jeremy Elson, Fredric Newberg, William Kaiser

Proceedings Volume 4743, (2002) https://doi.org/10.1117/12.449279

KEYWORDS: Sensors, Standards development, Sensor networks, Sensing systems, Algorithm development, Software development, Distributed computing, Telecommunications, Control systems, Embedded systems

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In the development of distributed security sensor networks a large variety of prototype systems have been implemented and tested. However these systems tend to be developer specific and require substantial overhead in demonstrating more than one application. To bridge the gap between embedded, networked systems and desktop simulation environments, systems are necessary which are easily deployable and allow extended operation of distributed sensor networks, while allowing the flexibility to quickly test and evaluate a variety of operational algorithms. To enable fast optimization by leveraging the widest development community, open standards for such a portable development system are desired. An open development system allows individual developers and small groups to focus on and optimize specific aspects of a distributed sensor network within realistic deployment constraints, prior to complete integration and deployment of a system within a specific application. By providing an embedded sensor and processing platform with integrated wired and wireless networking, a modular software suite separating access and control of individual processes, and open APIs, algorithm development and software optimization can be greatly accelerated and more robustly tested. To meet the unique needs of distributed sensor network applications, additional separation must be provided between the access to various subsystems, for example real-time embedded control versus tasks with less stringent timing requirements. An open platform that separates these requirements allows developers to accelerate testing and development of applications by focusing on individual components of the distributed sensor system, such as target tracking or low power networking. The WINS NG 2.0 developer's platform, provided by Sensoria Corporation for the DARPA/ITO Sensor Information Technology (SensIT) program, provides one example of such a system. This systems bridge the gap between dedicated desktop development environments and embedded application-specif

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