17,907 research outputs found
An Integrated Software-based Solution for Modular and Self-independent Networked Robot
An integrated software-based solution for a modular and self-independent
networked robot is introduced. The wirelessly operatable robot has been
developed mainly for autonomous monitoring works with full control over web.
The integrated software solution covers three components : a) the digital
signal processing unit for data retrieval and monitoring system; b) the
externally executable codes for control system; and c) the web programming for
interfacing the end-users with the robot. It is argued that this integrated
software-based approach is crucial to realize a flexible, modular and low
development cost mobile monitoring apparatus.Comment: 9 pages, Proceeding of the 10th International Conference on Control,
Automation, Robotics and Visio
Implementation and evaluation of the sensornet protocol for Contiki
Sensornet Protocol (SP) is a link abstraction layer between the network layer and the link layer for sensor networks. SP was proposed as the core of a future-oriented sensor node architecture that allows flexible and optimized combination between multiple coexisting protocols. This thesis implements the SP sensornet protocol on the Contiki operating system in order to: evaluate the effectiveness of the original SP services; explore further requirements and implementation trade-offs uncovered by the original proposal. We analyze the original SP design and the TinyOS implementation of SP to design the Contiki port. We implement the data sending and receiving part of SP using Contiki processes, and the neighbor management part as a group of global routines. The evaluation consists of a single-hop traffic throughput test and a multihop convergecast test. Both tests are conducted using both simulation and experimentation. We conclude from the evaluation results that SP's link-level abstraction effectively improves modularity in protocol construction without sacrificing performance, and our SP implementation on Contiki lays a good foundation for future protocol innovations in wireless sensor networks
Next Generation Teaching and Learning ??? Technologies and Trends
The landscape of teaching and learning has been radically shifted
in the last 15 years by the advent of web technologies, which
enabled the emergence of Learning Management Systems (LMS).
These systems changed the educational paradigm by extending the
classroom borders, capturing and persisting course content and
giving instructors more flexibility and access to students and other
resources. However, they also constrained and limited the
evolution of teaching and learning by imposing a traditional,
instructional framework. With the advent of Web 2.0
technologies, participation and collaboration have become
predominant experiences on the Web. The teaching and learning
community, as a whole, has been late to capitalize on these
technologies in the classroom. Part of this trend is due to
constraints in the technology (LMS), and part is due to the fact
that participatory media tools require an additional shift in
educational paradigms, from instructional, on-the-pulpit type of
teaching, to a student-centered, adaptive environment where
students can contribute to the course material and learn from one
another. This panel will discuss the next generation of teaching
and learning, involving more lightweight, modular systems to
empower instructors to be flexible, explore new student-centered
paradigms, and plug and play tools as needed. We will also
discuss how the iSchools are and should be increasingly involved
in studying these new forms, formulating best practices and
supporting the needs of teachers as they move toward more
collaborative learning environments
Managed ecosystems of networked objects
Small embedded devices such as sensors and actuators will become the cornerstone of the Future Internet. To this end, generic, open and secure communication and service platforms are needed in order to be able to exploit the new business opportunities these devices bring. In this paper, we evaluate the current efforts to integrate sensors and actuators into the Internet and identify the limitations at the level of cooperation of these Internet-connected objects and the possible intelligence at the end points. As a solution, we propose the concept of Managed Ecosystem of Networked Objects, which aims to create a smart network architecture for groups of Internet-connected objects by combining network virtualization and clean-slate end-to-end protocol design. The concept maps to many real-life scenarios and should empower application developers to use sensor data in an easy and natural way. At the same time, the concept introduces many new challenging research problems, but their realization could offer a meaningful contribution to the realization of the Internet of Things
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