scholarly journals Design of an open source-based control platform for an underwater remotely operated vehicle

DYNA ◽  
2016 ◽  
Vol 83 (195) ◽  
pp. 198-205 ◽  
Author(s):  
Luis M Aristizábal ◽  
Santiago Rúa ◽  
Carlos Esteban Gaviria ◽  
Sandra Patricia Osorio ◽  
Carlos A Zuluaga ◽  
...  
Keyword(s):  
Open Source ◽  
Development Time ◽  
Modular Approach ◽  
Remotely Operated Vehicle ◽  
Extensive Experience ◽  
Robotic Exploration ◽  
Software Platforms ◽  
Open Source Hardware ◽  
And Control ◽  
Closed Source

This paper reports on the design of an open source-based control platform for the underwater remotely operated vehicle (ROV) Visor3. The vehicle’s original closed source-based control platform is first described. Due to the limitations of the previous infrastructure, modularity and flexibility are identified as the main guidelines for the proposed design. This new design includes hardware, firmware, software, and control architectures. Open-source hardware and software platforms are used for the development of the new system’s architecture, with support from the literature and the extensive experience acquired with the development of robotic exploration systems. This modular approach results in several frameworks that facilitate the functional expansion of the whole solution, the simplification of fault diagnosis and repair processes, and the reduction of development time, to mention a few.

scholarly journals Shock tube data processing tools using open source hardware and software platforms

2020 ◽  
Author(s):  
K. Thirumalesh ◽  
Salgeri Puttaswamy Raju ◽  
Hiriyur Mallaiah Somashekarappa ◽  
Kumaraswamy Swaroop
Keyword(s):  
Data Processing ◽  
Shock Tube ◽  
Open Source ◽  
Software Platforms ◽  
Open Source Hardware

Effort, Time, and Staffing in Continually Evolving Open-Source Projects

2015 ◽  
pp. 1722-1743
Author(s):  
Liguo Yu
Keyword(s):  
Software Development ◽  
Open Source ◽  
Power Law ◽  
Development Time ◽  
Development Effort ◽  
Linux Kernel ◽  
Software Projects ◽  
Management And Development ◽  
Software Development Effort ◽  
Closed Source

Scheduling and staffing are important management activities in software projects. In closed-source software development, the relationships among development effort, time, and staffing have been well established and validated: the development effort determines the development time and the best number of developers that should be allocated to the project. However, there has been no similar research reported in open-source projects. In this chapter, the authors study the development effort, development time, and staffing in an open-source project, the Linux kernel project. Specifically, they investigate the power law relations among development effort, development time, and the number of active developers in the Linux kernel project. The authors find the power law relations differ from one branch to another branch in the Linux kernel project, which suggests different kinds of management and development styles might exist in different branches of the Linux kernel project. The empirical knowledge of software development effort obtained in this study could help project management and cost control in both open-source communities and closed-source industries.

Effort, Time, and Staffing in Continually Evolving Open-Source Projects

2013 ◽  
pp. 86-108
Author(s):  
Liguo Yu
Keyword(s):  
Software Development ◽  
Open Source ◽  
Power Law ◽  
Development Time ◽  
Development Effort ◽  
Linux Kernel ◽  
Software Projects ◽  
Management And Development ◽  
Software Development Effort ◽  
Closed Source

Scheduling and staffing are important management activities in software projects. In closed-source software development, the relationships among development effort, time, and staffing have been well established and validated: the development effort determines the development time and the best number of developers that should be allocated to the project. However, there has been no similar research reported in open-source projects. In this chapter, the authors study the development effort, development time, and staffing in an open-source project, the Linux kernel project. Specifically, they investigate the power law relations among development effort, development time, and the number of active developers in the Linux kernel project. The authors find the power law relations differ from one branch to another branch in the Linux kernel project, which suggests different kinds of management and development styles might exist in different branches of the Linux kernel project. The empirical knowledge of software development effort obtained in this study could help project management and cost control in both open-source communities and closed-source industries.

scholarly journals Stimjim: open source hardware for precise electrical stimulation

2019 ◽  
Author(s):  
Nathan Cermak ◽  
Matthew A. Wilson ◽  
Jackie Schiller ◽  
Jonathan P. Newman
Keyword(s):  
Electrical Stimulation ◽  
Open Source ◽  
Brain Slices ◽  
Brain Stimulation Reward ◽  
Reward Seeking ◽  
Seeking Behavior ◽  
Open Source Hardware ◽  
Closed Source

AbstractElectrical stimulation is a simple and powerful tool to perturb and evoke neuronal activity in order to understand the function of neurons and neural circuits. Despite this, devices that can provide precise current or voltage stimulation are expensive and closed-source. Here, we introduce Stimjim, a capable and inexpensive ($200 USD) open-source instrument for electrical stimulation that combines both function generation and electrical isolation. Stimjim provides microsecond temporal resolution with microampere or millivolt scale precision on two electrically isolated output channels. We demonstrate Stimjim’s utility both in vitro by precisely stimulating brain slices, and in vivo by training mice to perform intracranial self-stimulation (ICSS) for brain stimulation reward. During ICSS, Stimjim enables the experimenter to smoothly tune the strength of reward-seeking behavior by varying either the output frequency or amplitude. We envision Stimjim will enable new kinds of experiments due to its open-source and scalable nature.

scholarly journals Promoting Open-source Hardware and Software Platforms in Mechatronics and Robotics Engineering Education

2020 ◽  
Author(s):  
Nima Lotfi ◽  
Kenechukwu Mbanisi ◽  
David Auslander ◽  
Carlotta Berry ◽  
Luis Rodriguez ◽  
...  
Keyword(s):  
Engineering Education ◽  
Open Source ◽  
Software Platforms ◽  
Open Source Hardware ◽  
And Robotics

Development and Control of a Low-Cost, Three-Thruster, Remotely Operated Underwater Vehicle

2015 ◽  
Vol 9 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Khoa Duy Le ◽  
◽  
Hung Duc Nguyen ◽  
Dev Ranmuthugala
Keyword(s):  
Mathematical Model ◽  
Control Algorithm ◽  
Control Structure ◽  
Hybrid Control ◽  
Low Cost ◽  
Remotely Operated Vehicle ◽  
Model Based ◽  
Heading Control ◽  
Open Source Hardware ◽  
And Control

This paper presents the development of a low cost Remotely Operated Vehicle (ROV) which consists of open source hardware and has three thrusters. First, the hardware of the vehicle, including the actuators, sensors, and control structure, is described. Second, to study the relationship between the thrust forces and the performance of the ROV, a mathematical model of the vehicle in the form of a kinematic and kinetic model is established. Next, a hybrid control algorithm consisting of two components, namely model-based and PID algorithms, is proposed for surge speed, depth, and heading control. The effectiveness of the hybrid control algorithm is then verified by the ROV mathematical model-based simulations. Finally, free running tests for depth control are conducted to verify the robustness and reliability of the control structure and proposed algorithms.

R2P: An open source hardware and software modular approach to robot prototyping

2014 ◽  
Vol 62 (7) ◽  
pp. 1073-1084 ◽  
Author(s):  
Andrea Bonarini ◽  
Matteo Matteucci ◽  
Martino Migliavacca ◽  
Davide Rizzi
Keyword(s):  
Open Source ◽  
Modular Approach ◽  
Open Source Hardware
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