scholarly journals Real Time Operating System Options in Connected Embedded Equipment for Distributed Data Acquisition

2018 ◽  
Vol 11 (2) ◽  
pp. 35-58
Author(s):  
Teodor Sumalan ◽  
Eugen Lupu ◽  
Radu Arsinte
Keyword(s):  
Operating System ◽  
Real Time ◽  
Operating Systems ◽  
Source Code ◽  
Weather Conditions ◽  
Raspberry Pi ◽  
Distributed Data ◽  
Embedded Devices ◽  
The Status ◽  
High Flexibility

Abstract The purpose of the work described in this paper is to compare more configurations belonging to portables real-time operating systems for embedded devices based on Raspberry Pi board. The developed application in this work can monitor the status in a greenhouse: irrigation, heating, ventilation, humidification, closing/opening panels etc. following weather conditions. Our target is to choose an efficient, minimal operating system optimized for the desired application. Other targets are high flexibility, optimal modularity, high readability and maintainability of the source code.

scholarly journals An Adaptive Scheduler for Real-Time Operating Systems to Extend WSN Nodes Lifetime

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Roberto Rodriguez-Zurrunero ◽  
Ramiro Utrilla ◽  
Elena Romero ◽  
Alvaro Araujo
Keyword(s):  
Operating System ◽  
Real Time ◽  
Operating Systems ◽  
Research Area ◽  
Rechargeable Batteries ◽  
Wireless Sensor ◽  
Portable Devices ◽  
Wireless Devices ◽  
Changing Environments ◽  
Tasks Scheduling

Wireless Sensor Networks (WSNs) are a growing research area as a large of number portable devices are being developed. This fact makes operating systems (OS) useful to homogenize the development of these devices, to reduce design times, and to provide tools for developing complex applications. This work presents an operating system scheduler for resource-constraint wireless devices, which adapts the tasks scheduling in changing environments. The proposed adaptive scheduler allows dynamically delaying the execution of low priority tasks while maintaining real-time capabilities on high priority ones. Therefore, the scheduler is useful in nodes with rechargeable batteries, as it reduces its energy consumption when battery level is low, by delaying the least critical tasks. The adaptive scheduler has been implemented and tested in real nodes, and the results show that the nodes lifetime could be increased up to 70% in some scenarios at the expense of increasing latency of low priority tasks.

Operating Linux Softwares on Windows Platform

2013 ◽  
Vol 394 ◽  
pp. 495-498
Author(s):  
Ya Jun Wang
Keyword(s):  
Operating System ◽  
Virtual Machine ◽  
Operating Systems ◽  
Application Programming Interface ◽  
Source Codes ◽  
The Status ◽  
Application Programming ◽  
Programming Interface ◽  
Application Programs

Operating Linux Application softwares on Windows platform, can not only promote the development of interoperability technology of these two operating systems, but also strengthen the status Windows has in the market. Because of the differences in the architectures of Linux and Windows, when running Linux application programs in Windows operating system, we need to resort to some certain kinds of technologies such as Services For Unix, Application Programming Interface emulation, virtual machine platform, source codes refactoring, etc. This paper aims at making deep analyses on the principles and features of these technologies.

scholarly journals RealPi - A Real Time Operating System on the Raspberry Pi

10.29007/p614 ◽  
2019 ◽  
Author(s):  
Samuel Delaney ◽  
Dwight Egbert ◽  
Frederick C. Harris Jr
Keyword(s):  
Operating System ◽  
Real Time ◽  
New Technologies ◽  
Lesson Plan ◽  
Raspberry Pi ◽  
Work Place ◽  
New Developments ◽  
Real Time Operating System ◽  
The University

Academia has always sought to ride the line between established thought and new developments. No much more so than in the terms of technology. Universities seek to teach using known and proven methods and resources but also stay relevant with new technologies to provide students the knowledge they will need to be competitive in the work place or graduate field. In this work we will present how the University of Nevada approaches this problem with its Real Time Operating system course. Namely on how using the established Micro C/OS II Real time Operating System with the new builder phenomena the Raspberry Pi we can overcome the challenge of updating a tried and true lesson plan in order to use technology relevant and interesting to the students of today.

scholarly journals Smart Bike System

2020 ◽  
pp. 312-317
Author(s):  
Suvarna Gaikwad ◽  
Parth Dode ◽  
Shubham Chhipa ◽  
Shubhangi Vaikole
Keyword(s):  
Operating System ◽  
Open Source ◽  
Operating Systems ◽  
Computer Technology ◽  
Current System ◽  
Raspberry Pi ◽  
The World ◽  
And Control ◽  
Made In

<p>Vehicles being the most widely used machines need to get smarter compared to their current technology. The necessity described by the younger generation of users, the millennials, for their devices to be smart and their vision to have more computerized and smarter applications of various sensors. The invention and development of better-computerized systems for infotainment and control of vehicles have taken speed and research is done mainly in an open-source on Linux kernel-based operating systems. The Smart Bike System is a Raspberry pi based operating system(AGL) for bikes tracks the various components of the bike like Speed, Quantity of fuel, Distance covered in a single trip, Temperature, Date and Time. We make a note that the current system of dashboards for representing the various aspects of a bike is old. A significant improvement would be made in the quality of the bike and the way people use it if the current computer technology of the world embraces the vehicular system. Automotive Grade Linux(AGL) is an (open source tech) operating system for automobiles which when installed on a computer in synchronization with the parts of a motor-bike has an ability to display more information in a more colorful and animated format like a computer desktop but specifically for automobiles.</p>

Embedded Virtualization Techniques for Automotive Infotainment Applications

2014 ◽  
pp. 372-387
Author(s):  
Massimo Violante ◽  
Gianpaolo Macario ◽  
Salvatore Campagna
Keyword(s):  
Operating System ◽  
Embedded Systems ◽  
Experimental Evidence ◽  
Real Time ◽  
Operating Systems ◽  
Resource Usage ◽  
Single Chip ◽  
Real Time Operating System ◽  
Multicore Computing ◽  
Computing Platforms

Automotive infotainment applications are examples of embedded systems in which a heterogeneous software stack is used, which most likely comprises a real-time operating system, an automotive-grade Linux, and possibly Android. Thanks to the availability of modern systems-on-a-chip providing multicore computing platforms, architects have the possibility of integrating the entire software stack in a single chip. Embedded virtualization appears an interesting technology to achieve this goal, while providing the different operating systems the capability of exchanging data as well as optimizing resource usage. Although very well known in server-class systems, virtualization is rather new to the embedded domain; in order to leverage its benefits, it is therefore mandatory to understand its peculiarities and shortcomings. In this chapter, the authors illustrate the virtualization technologies with particular emphasis on hypervisors and Linux Containers. Moreover, they illustrate how those technologies can cooperate to fulfill the requirements on automotive infotainment applications. Finally, the authors report some experimental evidence of the performance overheads introduced when using embedded virtualization.

Teaching Assembly and C Language Concurrently

2010 ◽  
Vol 47 (2) ◽  
pp. 120-131 ◽  
Author(s):  
Janez Puhan ◽  
Árpád Bűrmen ◽  
Tadej Tuma ◽  
Iztok Fajfar
Keyword(s):  
Operating System ◽  
Computer Architecture ◽  
Programming Languages ◽  
Real Time ◽  
Operating Systems ◽  
Electrical Engineering ◽  
Engineering Curriculum ◽  
Assembly Code ◽  
C Language ◽  
Real Time Operating System

The paper discusses whether (and how) to teach assembly coding as opposed to (or in conjunction with) higher programming languages as part of a modern electrical engineering curriculum. We describe the example of a very simple cooperative embedded real-time operating system, first programmed in C and then in assembler. A few lines of C language code are compared with the slightly longer assembly code equivalent, and the advantages and drawbacks are discussed. The example affords students a much deeper understanding of computer architecture and operating systems. The course is linked to other courses in the curriculum, which all use the same hardware and software platform; this lowers prices, reduces overheads and encourages students to reuse parts of a written code in subsequent courses. A student learns that badly written and poorly documented code is very difficult to reuse.

scholarly journals Study on Application of Real-time Control Method for Controlling Position of Robots in the Given Time

2020 ◽  
Vol 3 (3) ◽  
pp. 461-471
Author(s):  
Tri Cong Phung
Keyword(s):  
Operating System ◽  
Real Time ◽  
Operating Systems ◽  
Control Method ◽  
Real Time Control ◽  
Real Time Operating System ◽  
The Real ◽  
Time Control ◽  
Robot Trajectory ◽  
The Given

Controlling accurately the position and velocity of robots in a given time is an important requirement in the industry. The open-source real-time operating systems not only have more advantages than the normal operating systems in both economy and flexibility but also meet the needs. This paper concentrates on building algorithms for controlling the robot trajectory in time using a modern real-time operating system called Linux-Xenomai. Firstly, the paper analyzes several advantages of the real-time operating system Linux-Xenomai comparing general operating systems and other real-time operating systems. Secondly, a real-time controller of a 5 degree-of-freedom (DOF) robot is built based on the real-time operating system Linux-Xenomai. After that, the paper proposes algorithms to test the ability of working in time of the robot. Finally, the real experiments are done to verify the proposed algorithms.

scholarly journals Binocular intelligent following robot based on YOLO-LITE

2021 ◽  
Vol 336 ◽  
pp. 03002
Author(s):  
Yuanyuan Zheng ◽  
Jun Ge
Keyword(s):  
Neural Network ◽  
Real Time ◽  
Deep Neural Network ◽  
Frame Rate ◽  
Raspberry Pi ◽  
Detection Accuracy ◽  
Location Error ◽  
Embedded Devices ◽  
Robot System ◽  
Time Performance

In order to solve the problem that the deep neural network model is large in scale, the calculation time is too long, and the real-time performance is severely limited when combined with embedded devices, so studied the intelligent follower robot system based on YOLO-LITE algorithm combined with Raspberry Pi 3B+. The system mainly includes camera processing, target detection and other modules. Obtained the internal and external parameters of the camera through calibration, and according to these parameters to correct the binocular camera. Recognized and located the target in each frame of image, calculated the distance from the camera to the target and the center location error, and driven the car to move. The experimental results show that the following car has excellent real-time performance, the average detection frame rate can reach 20Fps, and the average detection accuracy can reach more than 80%.

Performance Comparisons of Timing Techniques in a Non-Real-Time Environment

2005 ◽  
Author(s):  
Frederick M. Proctor ◽  
Justin R. Hibbits
Keyword(s):  
Operating System ◽  
Real Time ◽  
Operating Systems ◽  
High Performance ◽  
Low Cost ◽  
General Purpose ◽  
Control Applications ◽  
Real Time Operating System ◽  
Performance Comparisons

General-purpose computers are increasingly being used for serious control applications, due to their prevalence, low cost and high performance. Real-time operating systems are available for PCs that overcome the nondeterminism inherent in desktop operating systems. Depending on the timing requirements, however, many users can get by with a non-real-time operating system. This paper discusses timing techniques applicable to non-real-time operating systems, using Linux as an example, and compares them with the performance that can be obtained with true real-time OSes.

A Review of the Scopes and Challenges of the Modern Real-Time Operating Systems

2018 ◽  
Vol 9 (1) ◽  
pp. 66-82 ◽  
Author(s):  
Amit K. Shukla ◽  
Rachit Sharma ◽  
Pranab K. Muhuri
Keyword(s):  
Operating System ◽  
Embedded System ◽  
Real Time ◽  
Task Scheduling ◽  
Operating Systems ◽  
Computational Cost ◽  
Dynamic Environments ◽  
Real Time Operating System ◽  
Starting Point ◽  
Design Challenges

A real-time operating system (RTOS) is an integral part of a real-time embedded system (RTES). Most of the RTESs work on dynamic environments, and hence, the computational cost of tasks cannot be calculated in advance. Thus, RTOSs play a significant role in the smooth operations of the RTES through efficient task scheduling schemes and resource managements. This article investigates the existing design challenges and scope of the modern RTOSs. A wide variety of latest RTOSs are discussed and elaborated in detail. A comparative study with their prospects has been explained so that interested readers can use the article as a readily available starting point for their further studies on this topic.

Sign in / Sign up

Export Citation Format

Share Document