K. Pister
UC Berkeley, Electrical Engineering and Computer Science, Faculty Member
Progress has been made in the development of flying silicon. Fully self-contained MEMS rockets have been designed, fabricated and tested. A peak thrust of 4 mN was obtained from a rocket with a mass of 0.98 grams. This rocket was... more
Progress has been made in the development of flying silicon. Fully self-contained MEMS rockets have been designed, fabricated and tested. A peak thrust of 4 mN was obtained from a rocket with a mass of 0.98 grams. This rocket was comprised of a 3.2 mm inside diameter ceramic tube bonded to a silicon chip containing the rocket nozzle, igniter and
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Rfc, 6551. Title, Routing Metrics Used for Path Calculation in Low-Power and Lossy Networks. Author, JP. Vasseur, Ed., M. Kim, Ed., K. Pister, N. Dejean, D. Barthel. Date, March 2012. Format: TXT=67707 bytes. Status: PROPOSED STANDARD. ...
ABSTRACT The wide deployment of lower-cost wireless devices will significantly improve the productivity and safety of industrial plants while increasing the efficiency of plant workers by extending the information set available about the... more
ABSTRACT The wide deployment of lower-cost wireless devices will significantly improve the productivity and safety of industrial plants while increasing the efficiency of plant workers by extending the information set available about the plant operations. The aim of this document is to analyze the functional requirements for a routing protocol used in industrial Low-power and Lossy Networks (LLNs) of field devices.
[Docs] [txt|pdf] [draft-ietf-roll-rpl] [Diff1] [Diff2] [IPR] PROPOSED STANDARD Internet Engineering Task Force (IETF) T. Winter, Ed. ... Winter, et al. Standards Track [Page 1] RFC 6550 RPL March 2012 Status of This Memo This is an... more
[Docs] [txt|pdf] [draft-ietf-roll-rpl] [Diff1] [Diff2] [IPR] PROPOSED STANDARD Internet Engineering Task Force (IETF) T. Winter, Ed. ... Winter, et al. Standards Track [Page 1] RFC 6550 RPL March 2012 Status of This Memo This is an Internet Standards Track document. ...
This paper presents a practical solution for the fence-line intrusion detection problem. The MEMS based sensor platform is introduced along with its WirelessHART networking capabilities. A Decentralized Sequential Hypothesis Testing... more
This paper presents a practical solution for the fence-line intrusion detection problem. The MEMS based sensor platform is introduced along with its WirelessHART networking capabilities. A Decentralized Sequential Hypothesis Testing algorithm is studied at the theoretical level before being applied to the problem at hand. Results from several deployments show 100% detection rates within one second of the intrusion. The system is presented as a viable replacement for much more expensive and less performant security systems.
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... chraim,watteyne,pister}@eecs.berkeley.edu Civil and Environmental Engineering, University of California, Berkeley, USA, ali.ganji@gmail.com ... The algorithm is first run off-board using a set of previously collected magnetome-ter... more
... chraim,watteyne,pister}@eecs.berkeley.edu Civil and Environmental Engineering, University of California, Berkeley, USA, ali.ganji@gmail.com ... The algorithm is first run off-board using a set of previously collected magnetome-ter measurements, before being implemented and ...
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Abstract Wireless sensor networks (WSNs) have proven and increased their popularity in many different applications where sensitive information is collected at sensor nodes and forwarded to a central analysis (CA) center. However, the... more
Abstract Wireless sensor networks (WSNs) have proven and increased their popularity in many different applications where sensitive information is collected at sensor nodes and forwarded to a central analysis (CA) center. However, the constraints of limited resources and ...
Page 1. Adaptive Time Synchronization and Frequency Channel Hopping for Wireless Sensor Networks Branko Kerkez Kristofer Pister Electrical Engineering and Computer Sciences University of California at Berkeley Technical Report No. ...
The authors demonstrate a range of applications of micromachining and micromechanical systems in achieving efficient and tunable field emission devices, and improving their ease of integration
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ABSTRACT Recent standardization efforts on industrial low-power wireless communication technologies clearly bet for the Time Slotted Channel Hopping (TSCH) medium access control (MAC) layer as it proved to achieve 99.999% reliability... more
ABSTRACT Recent standardization efforts on industrial low-power wireless communication technologies clearly bet for the Time Slotted Channel Hopping (TSCH) medium access control (MAC) layer as it proved to achieve 99.999% reliability while ensuring deterministic behavior. Standards such as WirelessHART, ISA100.11a, and IEEE802.15.4e rooted at the TSCH MAC layer are used to connect millions of industrial devices today, enabling the emergence of the Industrial Internet paradigm. At that point and due to the ultralow energy profile of TSCH networks, scavengers come into play, enabling autonomously powered control and monitoring systems on industries. However, putting these systems together requires a clear understanding of their behavior. Therefore, this paper presents a methodology and a model to reliably dimension scavenger properties to network requirements and application needs, allowing industries to optimize the adoption of that technologies while keeping technical risks low.
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Large-scale networks of wireless sensors are becoming an active topic of research. Advances in hardware technology and engineering design have led to dramatic reductions in size, power consumption and cost for digital ...
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Recent results in the development of synthesis tools for Micro-Electromechanical Systems (MEMS) are presented. Single-objective and Multi-objective Genetic Algorithms (MOGA) have been successfully applied to several MEMS synthesis... more
Recent results in the development of synthesis tools for Micro-Electromechanical Systems (MEMS) are presented. Single-objective and Multi-objective Genetic Algorithms (MOGA) have been successfully applied to several MEMS synthesis examples. Genetic Algorithms (GA) are compared to the optimization technique of Simulated Annealing (SA) in terms of robustness, effectiveness and speed. Results show that SA can synthesize valid designs faster then Genetic Algorithms but does not handle multiple objectives as well and tends to have more difficulty in finding the global optimum.
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ABSTRACT
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... In fact, communication to aircraft or even satellites in low earth orbit will be possible from devices in the cubic centimeter to ... As the level of integration increases in MEMS sensor network components, the cost of the sensing,... more
... In fact, communication to aircraft or even satellites in low earth orbit will be possible from devices in the cubic centimeter to ... As the level of integration increases in MEMS sensor network components, the cost of the sensing, communication, and control will approach the nickel ...
Abstract Process variations, incurring during the fabrication stage of MEMS structures, may lead to substantially di erent performances from the nominal ones. This is mainly due to the small variation of the geometry of the structure with... more
Abstract Process variations, incurring during the fabrication stage of MEMS structures, may lead to substantially di erent performances from the nominal ones. This is mainly due to the small variation of the geometry of the structure with respect to the ideal design. In this ...