A heliostat integrated with a sun-position sensor for daylighting

Position control of a MEMS stage with integrated sensor

A novel key management scheme for heterogeneous sensor networks based on the position of nodes

Wireless sensor networks (WSNs) have many applications in the areas of commercial, military and environmental requirements. Regarding the deployment of low cost sensor nodes with restricted energy resources, these networks face a lot of security challenges. A basic approach for preparing a secure wireless communication in WSNs, is to propose an efficient cryptographic key management protocol be...

Flat Optical Fiber Daylighting System with Lateral Displacement Sun-Tracking Mechanism for Indoor Lighting

An essential impact which can improve the indoor environment and save on power consumption for artificial lighting is utilization of daylight. Optical fiber daylighting technology offers a way to use direct daylight for remote spaces in a building. However, the existing paradigm based on the precise orientation of sunlight concentrator toward the Sun is very costly and difficult to install on t...

a new type-ii fuzzy logic based controller for non-linear dynamical systems with application to 3-psp parallel robot

abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...

Integrated Precision 3 - DOF Position Sensor for Planar Linear

Integrated Precision 3-DOF Position Sensor for Planar Linear Motors Zack J. Butler, Alfred A. Rizzi, and Ralph L. Hollis The Robotics Institute, Carnegie Mellon University fzackb, arizzi, [email protected] Abstract Planar linear motors have been shown to be capable of fast accurate 2-DOF motions making them useful for assembly tasks. However, the lack of sensing capability has limited their a...