scholarly journals Qucs-0.0.19S: A new open-source circuit simulator and its application for hardware design

2016 ◽  
Author(s):  
Mike Brinson ◽  
Vadim Kuznetsov
Keyword(s):  
Open Source ◽  
Hardware Design ◽  
Circuit Simulator

Research of CANopen Slave Node Based on Embedded System

2011 ◽  
Vol 219-220 ◽  
pp. 629-632
Author(s):  
Zai Ping Chen ◽  
Feng Wang ◽  
Chao Jia
Keyword(s):  
Embedded System ◽  
Open Source ◽  
Can Bus ◽  
Hardware Design ◽  
Protocol Stack ◽  
Application Layer ◽  
Slave Node ◽  
Typical Application ◽  
Implementation Scheme ◽  
Avr Microcontroller

As a typical application layer protocol of CAN-bus, CANopen has been widely accepted in many fields. In this paper, CanFestival, which is a kind of open-source CANopen stack, is briefly introduced. The implementation scheme of CANopen slave node is proposed, which is based on a kind of AVR microcontroller-AT90CAN128 and open-source CANopen stack-CanFestival. In this paper the hardware design of slave node and the open-source protocol stack transplant have completed successfully. The debugging experiment of this slave node communication has been carried out, and the correctness of the scheme of hardware design and software transplant is verified by debugging experiment results in this paper.

THE DESIGN OF THE iCub HUMANOID ROBOT

2012 ◽  
Vol 09 (04) ◽  
pp. 1250027 ◽  
Author(s):  
ALBERTO PARMIGGIANI ◽  
MARCO MAGGIALI ◽  
LORENZO NATALE ◽  
FRANCESCO NORI ◽  
ALEXANDER SCHMITZ ◽  
...  
Keyword(s):  
Embodied Cognition ◽  
Open Source ◽  
Humanoid Robot ◽  
Hardware Design ◽  
Robotic Platform ◽  
Support Research ◽  
Sensing Performance ◽  
Electronic Design

This article describes the hardware design of the iCub humanoid robot. The iCub is an open-source humanoid robotic platform designed explicitly to support research in embodied cognition. This paper covers the mechanical and electronic design of the first release of the robot. A series upgrades developed for the second version of the robot (iCub2), which are aimed at the improvement of the mechanical and sensing performance, are also described.

scholarly journals Democratising Design in Scientific Innovation: Application of an Open Value Network to Open Source Hardware Design

2016 ◽  
Author(s):  
Maria Frangos ◽  
Joshua M. Pearce ◽  
Tiberius Brastaviceanu ◽  
Ahmed Akl Mahmoud ◽  
Abran Khalid
Keyword(s):  
Open Source ◽  
Hardware Design ◽  
Value Network ◽  
Scientific Innovation ◽  
Open Source Hardware

scholarly journals An Open Hardware Design for Internet of Things Power Quality and Energy Saving Solutions

Sensors ◽  
2019 ◽  
Vol 19 (3) ◽  
pp. 627 ◽  
Author(s):  
Eduardo Viciana ◽  
Alfredo Alcayde ◽  
Francisco Montoya ◽  
Raul Baños ◽  
Francisco Arrabal-Campos ◽  
...  
Keyword(s):  
Power Systems ◽  
Open Source ◽  
Power Quality ◽  
Low Voltage ◽  
Renewable Energy Sources ◽  
Hardware Design ◽  
Operating Conditions ◽  
Monitoring And Control ◽  
Open Hardware ◽  
Wide Range

An important challenge for our society is the transformation of traditional power systems to a decentralized model based on renewable energy sources. In this new scenario, advanced devices are needed for real-time monitoring and control of the energy flow and power quality (PQ). Ideally, the data collected by Internet of Thing (IoT) sensors should be shared to central cloud systems for online and off-line analysis. In this paper openZmeter (oZm) is presented as an advanced low-cost and open-source hardware device for high-precision energy and power quality measurement in low-voltage power systems. An analog front end (AFE) stage is designed and developed for the acquisition, conditioning, and processing of power signals. This AFE can be stacked on available quadcore embedded ARM boards. The proposed hardware is capable of adapting voltage signals up to 800 V AC/DC and currents up to thousands of amperes using different probes. The oZm device is described as a fully autonomous open-source system for the computation and visualization of PQ events and consumed/generated energy, along with full details of its hardware implementation. It also has the ability to send data to central cloud management systems. Given the small size of the hardware design and considering that it allows measurements under a wide range of operating conditions, oZm can be used both as bulk metering or as metering/submetering device for individual appliances. The design is released as open hardware and therefore is presented to the community as a powerful tool for general usage.

scholarly journals Open Source Hardware Communities: Investigating Participation in Design Activities

2019 ◽  
Vol 1 (1) ◽  
pp. 2307-2316
Author(s):  
Jean-François Boujut ◽  
Franck Pourroy ◽  
Philippe Marin ◽  
Jason Dai ◽  
Gilles Richardot
Keyword(s):  
Open Source ◽  
Case Studies ◽  
Hardware Design ◽  
Participation Rate ◽  
Sharing Economy ◽  
Voluntary Participation ◽  
Creative Commons ◽  
Design Activities ◽  
Design Projects ◽  
Open Source Hardware

AbstractOpen source design of hardware products is an emerging phenomenon that takes more and more importance today's in the society. However, open source (hardware) design implies a tremendous change in both design practices and philosophy because it is partly related to the movements of creative commons and the sharing economy. From this perspective one could think that participation is crucial in the success of open source design projects. In this paper, we analyse 9 case studies in the light of 3 hypotheses. If many studies highlight the potential of the crowd as a resource for design tasks, our study shows that for open source design communities the participation is not massive. In this study, we used an activity-based approach to build our model. As open source design processes are fairly unstructured and based on voluntary participation, it is impossible to adopt a classical task-based model. With the help of this model, we were able evaluate the overall size of the active community, the participation rate with regards to the activities. This study paves the way to deeper and extensive studies on how to support communities engaged in open source design of hardware products.

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