Stargate Developer's Forum

Presentation Abstracts

Monday, May 2, 2005

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Roy Want
Trevor Pering






Commercialization of Stargate

Mike Horton
President and CEO


Crossbow has offered the Stargate gateway and Xscale CPU platform for approximately 1.5 years. In this time, the Stargate has found a wide range of applications. Crossbow will review these applications. In addition to selling as a standalone item, Crossbow has developed a number of software utilities that run on the Stargate for managing sensor networks. Crossbow will review these tools and present how the Stargate is an effective sensor network appliance.

Bio: Mike Horton co-founded Crossbow(r) Technology and has served as its President & CEO since inception. Horton has led Crossbow from its founding product line of digital MEMS accelerometers and tilt sensors to its current market leading inertial sensor and wireless sensor networking platforms. To this point in time, he has co-authored four patents. Under his leadership, the company's revenue has grown more than 50 fold and became net profitable in 2002. Horton has closed $13 Million in venture financing for the company, including from Intel Capital, its lead corporate investor. Horton was named one of the Top 100 Innovators in the MIT Technology Review and was named one of The Top 50 Movers and Shakers in high technology by Electronic Business Magazine. He graduated from UC Berkeley with a B.S. and M.S. in Electrical Engineering. He was nominated for the University Medal and won the Warren Y. Dere Design Award.

Personal Sever

Roy Want
Principal Engineer
Intel Research




The Personal Server is a small, mobile device that is designed to be a user’s wireless repository for their mobile media, documents, preferences, and other personal information. Built around the Stargate platform it takes advantage of the trend in high density mobile storage and short range wireless standards. Initial Personal Server prototypes have paved the way for commercial adoption of basic media-access technology, highlighting the power of personal mobile systems that are small enough to be easily carried in the pocket and conveniently accessed over a wireless link. In addition to storing movies, music, and photographs, the Personal Server has also been used as the center of personal medical data in the CareLog application, as well as the basis for interaction with smart spaces using RFID. From a research perspective, the Personal Server highlights how the emerging technologies embodied in the Stargate platform can be integrated into personal mobile devices.

Bio: Dr. Want is a principal engineer at Intel Research, where he has managed the Ubiquity project since 2001. He received his B.A. degree in computer science from Churchill College, Cambridge University, UK, in 1983 and continued research at Cambridge into reliable distributed multimedia systems. He earned a Ph.D. degree from Cambridge in 1988 and then joined Olivetti Research in 1988. While there, he developed the Active Badge, a system for automatically locating people in a building. Dr. Want later joined the Ubiquitous Computing program at Xerox PARC in 1991 and led a project called PARCTab, one of the first context-aware computer systems. At PARC, he managed the Embedded Systems group and earned the position of principal scientist.

CENS Overview

Richard Guy
(Center for Embedded Networked Sensing)


Abstract not available.

Embedded Robotics

Steve Richards
Chief Roboticist

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This discussion involves the development hurdles and challenges posed when integrating the Stargate into an advanced surveillance robot platform. The LRV (Lightweight Reconnaissance Vehicle) can climb stairs, navigate through snow, and fit below vehicles for inspection. The Stargate is stretched by this robot to real-time video streaming, 2-way stereo audio, and an interface to several BrainStem processors that handle motion control and I/O functions on the robot. The discussion will center around the development of the Acroname Daughter Board which manages many of these features including a USB hub, audio Codecs, video capture and streaming, and several other key functions of the system. The challenges include mechanical, electrical, and software interfaces in the robotics domain.

Acroname has been involved in the Stargate development for several years working with Intel on design issues for the Stayton and Stargate processors. The commercially available Stargate is distributed by Acroname to robotics researchers and the platform is also used in contract design work Acroname is involved in.

Intel Mote

Lama Nachman
Intel Research








The Intel Mote platforms are motivated by several design goals: increased CPU performance, improved radio bandwidth and reliability, and the usage of commercial off-the-shelf components in order to maintain cost-effectiveness. The first generation is built around an integrated wireless microcontroller consisting of an ARM7 core, a Bluetooth radio, RAM and FLASH memory, as well as various I/O options. The software architecture is based on an ARM port of TinyOS. Networking and routing layers have been created on top of the TinyOS base to provide the underlying multi-hop functionality. The network is self-organizing on startup and has mechanisms to repair failed links and circumvent failed nodes. The second generation Intel mote has a common core to the next generation Stargate2 platform, and is built around a new low power X-Scale processor and an 802.15.4 radio. The processor has a rich set of interfaces that ease the sensor integration, larger RAM and CPU power to support data processing and larger FLASH to enable extended offline logging.

The Intel Mote was deployed in multiple pilot industrial applications. In this talk, we describe the equipment monitoring application using industrial vibration sensors. This application was chosen since it benefits from the increased platform capabilities and network bandwidth of the Intel Mote platform. We will also describe a water pipeline monitoring application, deployed in Boston last year.

Bio: Lama is currently a senior researcher at Intel Corporation. She is working on creating the next generation of self-organizing wireless sensor network nodes (also called "motes"). Lama has over 8 years of experience in the areas of computer architecture, embedded platforms, networking and wireless sensor networks. Previous assignments at Intel involved the development and evaluation of microarchitecture components for the Itanium® and Itanium® 2 processors. Prior to joining Intel, Lama has held multiple senior roles at Ubicom Inc, Weave Innovations and Microsoft Corporation. Lama received her MS and BS in computer engineering at the University of Wisconsin-Madison. Her research focused on computer architecture and design validation.

Extreme Scaling with ExScal

Vinayak Naik
Excal - Ohio State University





Project ExScal (for Extreme Scale) designed, developed, and deployed the largest wireless sensor network to date. The system was used to detect, classify, and track intruders in real time across an extended area (1km by 300m). To span this area, ExScal included a backbone ad hoc network of 802.11 nodes on a hitherto unprecedented scale. We adopted the Stargate platform for the backbone tier to serve as the basis for developing efficient, robust, and easily deployable backbone service. Stargate's Linux-based open source system software and the portability of EmStar framework facilitated our software design and development. In this talk, we focus on the ad hoc 802.11 backbone of ExScal and detail the design and performance of one of its three routing protocols.

Bio: Vinayak Naik is a PhD candidate in the Department of Computer Science and Engineering at the Ohio State University. His research interests include fault-tolerance and security properties of the distributed and networked systems. His recent research is focused on wireless networks. He received a BE in Computer Technology from the University of Mumbai, India.

Dev Tools

Trevor Pering
Research Scientist
Intel Research






PlatformX is an open-source suite of development tools designed to support various Stargate-related platforms and applications. Hosted on Sourceforge, it is designed to allow individual contributors to maintain local versions of a Stargate software build, configured for their specific needs, while still tracking a central system base. Additionally, the system is designed to encourage community participation, by allowing people to generate and submit patches to the build process, enabling the core system to be used for a wide variety of purposes. This tutorial will cover the basic development tools, showing how they can be used to update and configure a Stargate platform.

Bio: Dr. Pering is a research scientist at Intel Research, where he is a member of the Ubiquity project. He received his Ph.D. in electrical engineering from the University of California, Berkeley, where he worked on the InfoPad project and then focused on operating system power management techniques. Outside of engineering, he enjoys music (he plays jazz trombone), orienteering, backpacking, and travel. Dr. Pering is also a member of the ACM.


Martin Lukac




Many Wireless Sensor Network (WSN) applications are composed of a mixture of deployed devices with varying capabilities, from extremely constrained 8-bit "Motes" to less resource-constrained 32-bit Stargates. The development and deployment of WSNs rides heavily on the availability of simulation, emulation, visualization and analysis support. EmStar is a software environment for developing and deploying complex WSN applications on networks of 32-bit embedded microserver platforms, and integrating with networks of Motes. EmStar consists of libraries that implement message-passing IPC primitives, tools that support simulation, emulation, and visualization of live systems, both real and simulated, and services that support networking, sensing, and time synchronization.


Trevor Pering
Research Scientist
Intel Research


What new feature/capability would you like to have in a next-gen Stargate device?
  • Kent Lyons of GA Tech: VGA Video
  • Fredric Newberg of Sensoria: Power Scaling
  • Ralph Kling of Intel: Gateway/Mote Integration
  • Steve Richards of Acroname: Robotics Input Output