scholarly journals Universal single-board computer based control unit for biomedical test benches

2021 ◽  
Vol 7 (2) ◽  
pp. 629-632
Author(s):  
Grit Rhinow ◽  
Carsten Tautorat ◽  
Swen Grossmann ◽  
Niels Grabow ◽  
Stefan Siewert ◽  
...  
Keyword(s):  
Control Unit ◽  
International Standards ◽  
Raspberry Pi ◽  
Perfusion System ◽  
Software Environment ◽  
Pid Algorithm ◽  
Flow Perfusion ◽  
Computer Based ◽  
Electronic Assemblies ◽  
Application Specific

Abstract Continuous adaptation of international standards for medical devices requires recurrent modification of test benches. A universal control unit using an open software environment is presented to simplify the maintenance of various test benches. Our developed control unit is equipped with a Raspberry Pi 4, with standard communication interfaces and application-specific electronic assemblies. The software is based on Node-RED, a browser-based editor. A measuring setup was adapted for a flow perfusion system. Our control unit simplifies the handling of the flow perfusion system by controlling a hydraulic pump and all required valves. A software programmed PID algorithm adapts the speed of the pump to adjust the pressure automatically. Actuators like proportional pinch valves are handled to control volumetric flow and pressure within the circulation. Consequently, the user directly observes changes inside the system. The measured data are stored and are available for documentation.

Development of a Mechatronics Course Integrated With Lab

2017 ◽  
Author(s):  
Biswanath Samanta
Keyword(s):  
Theoretical Background ◽  
Specific Content ◽  
Course Materials ◽  
Hands On ◽  
Hands On Learning ◽  
Contact Hours ◽  
Computer Based ◽  
Interactive Session ◽  
Application Specific ◽  
Southern University

This paper reports the development of an introductory mechatronics course in Mechanical Engineering (ME) undergraduate program at Georgia Southern University. This an updated version of an existing required course in the ABET accredited BSME program. The course covers three broad areas: mechatronic instrumentation, computer based data acquisition and analysis, and microcontroller programming and interfacing. This is a required 3-credit course in the ME program with updated computing application specific content reinforcing theoretical foundation with hands-on learning activities of the existing course. The course has four contact hours per week with two hours of lecture and two hours of interactive session of problem solving and laboratory experiment. For each topic covered, students get the theoretical background and the hands-on experience in the laboratory setting. Both formative and summative assessment of the students’ performance in the course are planned. Both direct and indirect forms of assessment are considered. The paper reports the details of the course materials.

Exploratory Learning Environments: What are They and Do Students Explore?

1993 ◽  
Vol 9 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Jing-Fong J. Hsu ◽  
Carol A. Chapelle ◽  
Ann D. Thompson
Keyword(s):  
Learning Environment ◽  
Language Learning ◽  
Learning Environments ◽  
Exploratory Learning ◽  
Esl Students ◽  
Software Environment ◽  
Computer Based Learning ◽  
Descriptive Research ◽  
Computer Based ◽  
Exploratory Learning Environments

Computer-based learning environments have been defined as settings where students use software to facilitate active, exploratory learning. We distinguish between illocutionary and non-illocutionary learning environments: the computer interprets the intent of students in the former but not in the latter. We apply these terms to language learning environments, and report descriptive research on ESL students' use of a non-illocutionary learning environment. Results indicated students “explored” the learning environment in a routine way, but failed to explore creatively the program's morphosyntactic possibilities; routine exploration was positively related to attitudes for part of the group, but negatively related to attitudes for students who may have found the software environment too easy. Implications for illocutionary and non- illocutionary learning environments are discussed.

Decision Support at the Point of Care: Challenges in Knowledge Representation, Management, and Patient-specific Access

2003 ◽  
Vol 17 (1) ◽  
pp. 69-73 ◽  
Author(s):  
R.A. Greenes
Keyword(s):  
Decision Support ◽  
Clinical Information System ◽  
Point Of Care ◽  
Medical Knowledge ◽  
User Interaction ◽  
Clinical Information ◽  
Patient Specific ◽  
Local Environments ◽  
Computer Based ◽  
Application Specific

Many applications in a clinical information system can benefit from the incorporation of medical knowledge to provide patient-specific, point-of-care decision support. These include computer-based provider order entry, referral, clinical result interpretation, consultation, adverse event monitoring, scheduling, shared patient-doctor decision-making, and generation of alerts and reminders, among others. To be executable, knowledge must be represented in the form of rules, constraints, calculations, guidelines, and other logical/algorithmic formats. The main difficulty is that the integration of such knowledge into clinical applications, when it occurs, tends to be very system- and application-specific, often encoded in a programming language, or even in the formating specifications of a user interaction display. Also, the data references and services invoked are highly dependent on the system/platform and electronic medical record implementation. This makes it difficult and time-consuming to encode authoritative evidence-based knowledge, severely limits the ability to disseminate and share successes, and hampers efforts to review and update the logic as medical knowledge changes. Solutions to this problem involve the development of standards-based representations for medical knowledge, and tools for authoring/editing, dissemination, adaptation to local environments, and execution. Numerous approaches are being pursued, all of which will be described in this presentation.

scholarly journals Computer Vision-Based Portable System for Nitroaromatics Discrimination

2016 ◽  
Vol 2016 ◽  
pp. 1-10
Author(s):  
Nuria López-Ruiz ◽  
Miguel M. Erenas ◽  
Ignacio de Orbe-Payá ◽  
Luis F. Capitán-Vallvey ◽  
Alberto J. Palma ◽  
...  
Keyword(s):  
Computer Vision ◽  
Picric Acid ◽  
Color Space ◽  
Control Unit ◽  
Nitroaromatic Compounds ◽  
Raspberry Pi ◽  
Real Time Analysis ◽  
Portable System ◽  
Related Compounds ◽  
Explosives And Related Compounds

A computer vision-based portable measurement system is presented in this report. The system is based on a compact reader unit composed of a microcamera and a Raspberry Pi board as control unit. This reader can acquire and process images of a sensor array formed by four nonselective sensing chemistries. Processing these array images it is possible to identify and quantify eight different nitroaromatic compounds (both explosives and related compounds) by using chromatic coordinates of a color space. The system is also capable of sending the obtained information after the processing by a WiFi link to a smartphone in order to present the analysis result to the final user. The identification and quantification algorithm programmed in the Raspberry board is easy and quick enough to allow real time analysis. Nitroaromatic compounds analyzed in the range of mg/L were picric acid, 2,4-dinitrotoluene (2,4-DNT), 1,3-dinitrobenzene (1,3-DNB), 3,5-dinitrobenzonitrile (3,5-DNBN), 2-chloro-3,5-dinitrobenzotrifluoride (2-C-3,5-DNBF), 1,3,5-trinitrobenzene (TNB), 2,4,6-trinitrotoluene (TNT), and tetryl (TT).

scholarly journals Integrating Computer-Based Technology In Higher Education Programs: Availability, Utility, Opinions, And Anxiety Of University Teachers

2021 ◽  
Vol 9 (3) ◽  
Author(s):  
Syeda Fatima Niaz ◽  
Muzammila Akram ◽  
Rabia Bahoo
Keyword(s):  
Quantitative Research ◽  
Sampling Technique ◽  
Private University ◽  
International Standards ◽  
Educational Institutions ◽  
Public And Private ◽  
Systematic Random Sampling ◽  
University Teachers ◽  
Integration Of Technology ◽  
Computer Based

The current study was designed to assess the integration of computer-based technology tools in universities of southern Punjab, Pakistan. Integration of technology has become the major concern of educational institutions. This is because that technology is considered the knowledge transfer highway in various countries. Every nation is working hard to upgrade its education system according to international standards. A quantitative research design was selected for the present study. A survey approach was used for the collection of data. The population of the study was all university teachers in district Bahawalpur, Punjab. The sample size consisted of 205 public and private university teachers and was approached via a systematic random sampling technique. A questionnaire was developed according to the objectives of the study and its reliability was assessed by Cronbach alpha, which was 0.88. It was observed that various factors influence the integration of computer-based technology in classrooms including availability, utility, teachers’ opinions, and anxiety towards computer-based technology.

scholarly journals E-Mail-Related Problem-Solving Behaviors Across Age Groups: An Analysis of Log File Data

2020 ◽  
Vol 4 (Supplement_1) ◽  
pp. 410-411
Author(s):  
Taka Yamashita ◽  
Leah Saal ◽  
Roberto Millar ◽  
Shalini Sahoo ◽  
Phyllis Cummins
Keyword(s):  
Older Adults ◽  
Problem Solving ◽  
Odds Ratio ◽  
Related Problem ◽  
Age Groups ◽  
Online Communication ◽  
Software Environment ◽  
Problem Solving Skills ◽  
Computer Based ◽  
Log File

Abstract Email is one of the most common and useful online communication tools. However, older adults tend to have difficulties fully taking advantage of email. Organizing the information in the email software environment and sending a message to selected recipients are examples of common email-related problem-solving. To date, little data are available to understand the email-related problem-solving behaviors of older adults. Nationally representative survey data and log-file data of the U.S. adults (n = 1,341) are derived from the 2012 Program for International Assessment of Adult Competencies (PIAAC), which provides computer-based assessment data on problem-solving skills. The PIAAC respondents used the computer device and solved the problems in the simulated email environment. Descriptive summary showed that those 55 years and older took longer (169 seconds), referred to the help menu (15%) and used the cancel button (26%) more often than younger age groups (e.g., age 25-34; 103 seconds, 3% and 17%, respectively) in one of the tasks. Additionally, binary logistic regression showed that taking longer time (odds-ratio = 0.99, p < 0.05) and using the help menu (odds-ratio = 0.85, p < 0.05) were associated with the incorrect answer to the email problem-solving, although the findings varied across different types of problems. These unique findings from the combination of survey and log-file data analyses suggested that some older adults may benefit from the training for common email-related problems rather than teaching themselves. Detailed descriptions of computer-based assessment log file data and other results are also evaluated in this study.

scholarly journals Web-based Queue Machine Development using Raspberry and ESP8266

2018 ◽  
Vol 7 (1) ◽  
pp. 4
Author(s):  
Anggit Damaz Istoko ◽  
Aulia Faqih Rifa'i
Keyword(s):  
Recent Time ◽  
Analog Signal ◽  
Raspberry Pi ◽  
Network Configuration ◽  
Web Based ◽  
Queue System ◽  
Computer Based ◽  
Arduino Uno ◽  
The Web

At a recent time, a computer-based queue machine, which is using the computer as both a client and a server, is rated to be less practical and inefficient. In this case, the queue machine will need a number of the computer as many as the locket and the network configuration. Given these points, the aim of this research is to build a practice and applicable queue machine. In the development of this system, the writer adopted the prototyping method. Acquiring Arduino Uno to convert the analog signal become a digital which will be shown in the LED P10, utilizing NodeMCU ESP8266 as a WiFi module, and adapting Raspberry Pi 3 as a server, this queue system expected to solve the problem before. In addition, to build the web, this queue system is using javascript and node.js as the software. This research derives a practice, easy to use, and portable queue machine because it uses wifi for their connection.

scholarly journals Sistem Pengaturan Penggunaan Perangkat Listrik Rumah Tangga Menggunakan Komputer Mini Hemat Daya

PRAXIS ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 118
Author(s):  
Hironimus Leong ◽  
Suyanto E.A.
Keyword(s):  
Energy Saving ◽  
Raspberry Pi ◽  
Software Management ◽  
Control Center ◽  
Electrical Control ◽  
Special Software ◽  
Electrical Devices ◽  
Computer Based ◽  
Smart House ◽  
Integrated Software

Abstract: The use of household electrical appliances can be controlled automatically by utilizing computer that can control when the device is switched on or off according to the schedules and conditions provided by the user. Provisions and schedules can be determined by the user through software management that regulates the date and time regularly or specifically. By utilixing "Rasberry Pi" energy saving mini computer that that is equipped with special software, electrical control center can be connected to the mini computer and the user can use integrated software to control the use of household electrical appliances according to the need on determined schedules. The final goal of this research is to produce computer based system to manage the electric use that results in the efficiency of the use of electricity in the household and to create smart house that environmentally friendly Keywords: electrical devices, management, setting, rasberry pi, saving power Abstrak: Penggunaan perangkat listrik rumah tangga dapat dikendalikan secara automatis dengan memanfaatkan kemampuan komputer yang mampu mengontrol kapan perangkat tersebut dinyalakan atau dimatikan sesuai dengan jadwal dan ketentuan yang diberikan oleh pengguna. Ketentuan dan jadwal dapat ditentukan oleh pengguna melalui software manajemen yang mengatur waktu tanggal dan jam baik secara regular maupun jadwal dan jam yang berlaku secara khusus atau spesifik. Dengan memanfaatkan komputer mini hemat “Raspberry Pi” dan dilengkapi dengan software khusus, maka pusat kontrol listrik dapat dihubungkan ke komputer mini tersebut dan pengguna dapat memanfaatkan software terintegrasi untuk mengatur penggunaan perangkat listrik rumah tangga sesuai dengan kebutuhan pada jadwal-jadwal yang sudah ditentukan. Tujuan akhir dari penelitian ini adalah menghasilkan sistem berbasis komputer untuk mengatur penggunaan listrik yang berdampak pada efisiensi penggunaan listrik dalam rumah tangga serta menciptakan rumah pintar yang ramah lingkungan. Kata kunci: perangkat listrik, manajemen, pengaturan, raspberry pi, hemat daya

scholarly journals COSMOS: Collaborative, Seamless and Adaptive Sentinel for the Internet of Things

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1492 ◽  
Author(s):  
Pantaleone Nespoli ◽  
David Useche Pelaez ◽  
Daniel Díaz López ◽  
Félix Gómez Mármol
Keyword(s):  
Internet Of Things ◽  
Real World ◽  
Smart Devices ◽  
Raspberry Pi ◽  
The Internet ◽  
Security Issues ◽  
Dynamic Scenario ◽  
Computer Based ◽  
Iot Devices ◽  
The Internet Of Things

The Internet of Things (IoT) became established during the last decade as an emerging technology with considerable potentialities and applicability. Its paradigm of everything connected together penetrated the real world, with smart devices located in several daily appliances. Such intelligent objects are able to communicate autonomously through already existing network infrastructures, thus generating a more concrete integration between real world and computer-based systems. On the downside, the great benefit carried by the IoT paradigm in our life brings simultaneously severe security issues, since the information exchanged among the objects frequently remains unprotected from malicious attackers. The paper at hand proposes COSMOS (Collaborative, Seamless and Adaptive Sentinel for the Internet of Things), a novel sentinel to protect smart environments from cyber threats. Our sentinel shields the IoT devices using multiple defensive rings, resulting in a more accurate and robust protection. Additionally, we discuss the current deployment of the sentinel on a commodity device (i.e., Raspberry Pi). Exhaustive experiments are conducted on the sentinel, demonstrating that it performs meticulously even in heavily stressing conditions. Each defensive layer is tested, reaching a remarkable performance, thus proving the applicability of COSMOS in a distributed and dynamic scenario such as IoT. With the aim of easing the enjoyment of the proposed sentinel, we further developed a friendly and ease-to-use COSMOS App, so that end-users can manage sentinel(s) directly using their own devices (e.g., smartphone).

scholarly journals Raspberry PI 3B + microcomputer as a central control unit in intelligent building automation management systems

2018 ◽  
Vol 196 ◽  
pp. 04032 ◽  
Author(s):  
Mateusz Sałuch ◽  
Daniel Tokarski ◽  
Tomasz Grudniewski ◽  
Marta Chodyka ◽  
JerzyAntoni Nitychoruk ◽  
...  
Keyword(s):  
Rest Period ◽  
Control Unit ◽  
Management Systems ◽  
Raspberry Pi ◽  
Central Control ◽  
Building Automation ◽  
Intelligent Building ◽  
Central Control Unit ◽  
Building Management ◽  
Automation Systems

This article aims to show the possible savings in electricity costs in smart building installations with the use of new version of Raspberry Pi 3 model B + as the control unit in intelligent building automation systems. It presents a comparison of the consumption of electricity in two units used in the central control systems, i.e. a small Windows-based computer and a Raspberry microcomputer. The power consumption of these units was measured during the rest period and during standard operations in the intelligent installation system. The conducted measurements proved that the use of the new updated version of Raspberry Pi 3 model B + as the central control unit in intelligent building management systems is more economical and energy-saving.

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