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This paper describes the implementation of a system for measuring entropy. The design was optimized to be implemented in a simple and small microcontroller, achieving acceptable accuracy. The system allows measuring the entropy of internally code-generated signals, and also, sampled external analog signals. The development board used M1AFS-embedded kit of Actel. In the FPGA (Field Programmable Gate...
This paper presents a Real-Time Operating System (RTOS) implementation. This RTOS is based on the OSEK-OS 2.2.3 standard, which will be extended to support an Asymmetric Multiprocessor System (AMP). The term asymmetric means that the microprocessors included in the system have heterogeneous architectures (a subgroup of identical processors may exist but not the whole amount of them are identical)...
Many industrial application could benefit from the use of wireless sensor networks technology in safety critical context. This paper analyses the existing platforms to determine if they are suitable for a safety related application, analyses the possible modification to fulfill the requirements and propose an architecture that combines costs, performances and reliability.
The aim of this paper is to review the current existing development platforms in order to present one alternative for students as part as an Educational environment. Furthermore, the STEM (Science, Technology, Engineering and Mathematics) education is an emerging trend which needs modular, adaptable and easy to use tools, these attention during the educational session. Additionally, this paper covers...
A designed set of practices for a general course of Automotive Electronics is presented. The practices have been designed using the ‘mbed’ environment with the LPC1768 microcontroller. These practices aim to address the interaction of a system based on microcontroller and a real time operating system, with sensors and actuators, including buses commonly used in vehicles and OBD-II diagnostic systems.
This document covers the usage and development of a Linux based virtual machine with specific tools to help out students in the learning process of digital designs and microprocessors. It describes the advantages of an unified development environment for the teaching process and how it helps students to understand key concepts. Furthermore, a series of examples allow the student to get started in...
Embedded systems for wearable robotics are ideally low-cost, lightweight, miniature, reliable and safe. They have high peak output and negligible standby power, are simple to use and program, can support high-performance real-time control loops and accept additional degrees of freedom, input and output devices. However, practical solutions cannot accommodate all of these criteria and compromises are...
This paper presents the implementation of neural network based on Arduino Uno R3 microcontroller for energy saving of electric kettle in the office. The neural network uses back propagation technique and levenberg-marquardt algorithm for learning and training. The day and usage time of electric kettle are inputs for learning and training until the neural network can predict and control the operation...
Duty cycling has been the main concept for saving energy in sensor networks for a long time. Yet, additional overhead for synchronization and the fact that overhearing and idle listening cannot completely be prevented, motivated further research. Wake-up receiver, i.e., additional ultra-low power radios that are not switched off and can receive a so called wake-up signal, aim to fill this gap. The...
This study looks at the need for a device that monitors upper extremity movements. The device needs to be able to predict gestures on-board to provide immediate feedback. Linear Discriminate Analysis and Support Vector Machine Light and Support Vector Machine Multiclass libraries were implemented on an Atmel embedded system to investigate the limitations. For the Support Vector Machine Light implementation...
This paper emphasis the best efforts and technique in reduction of harmonic content of the sinusoidal waveform in ac voltage. This is done by increasing the number of steps. In general, number of bridges are determined by the formula 2N+1=Levels, where N is the number of bridges, which leads to 10 bridges. But this research makes use of 4 H-Bridges. This is achieved by making use of asymmetrical multilevel...
Advances in technology supported with higher communication bandwidth and data rate have led to optimum utilization of channel capacity for e-learning. Data rate to the extent of few gigabits per second provide easy access to students and professionals to learn from the best universities and eminent professors online without hassles and further evaluation with certification for the e-courses. The e-learning...
Power quality has an essential relevance for industrial economies. Server farmsand highly accurate automation processes are directly dependent on the powerquality of the power grid. To guarantee a standard of quality, power is measuredby power quality monitoring (PQM) units. However, standard PQM systems usingservers for data processing are too expensive for the installation on smallpower plants,...
This paper presents a study on the effect of Forward Body Biasing on the laser fault sensitivity of a CMOS 90nm microcontroller. Tests were performed on a register of this target, under several supply voltage and body bias settings, showing significant laser sensitivity variations. Based on these results, a method which aims at decreasing fault repeatability by using variable supply voltage and body...
Verifying security requirements of the firmware in contemporary system-on-chip (SoC) designs is a critical challenge. There are two main difficulties in addressing this problem. Security properties like confidentiality and integrity cannot be specified with commonly-used property specification schemes like assertion-based verification/linear temporal logic (LTL). Second, firmware interacts closely...
Modern age electronic systems give highest speed and performance. Hardware optimization leads to reduction in board area, hardware, number of components and also the manufacturing cost of the electronic system. Optimization becomes severe in design of battery operated portable equipments. By using multifunctional input output port pins, device level optimization can be achieved. Higher optimization...
The complexity of a particle accelerator implies the remote control of very large numbers of devices, with many different typologies, either distributed along the accelerator or concentrated in locations, often far away from each other. Local and global control systems handle the devices through dedicated communication channels and interfaces. Each controlled device is practically a “smart node” performing...
This paper presents prototype implementation of low-cost, open hardware, static — gesture recognition system. The implemented system has three major components: A Glove and Sensor Unit (GSU) — consisting of a pair of gloves embedded with custom made, low-cost flex and contact sensors, a Primary Supporting Hardware (PSH) that maps change in input values from GSU, a Secondary Supporting Hardware (SSH)...
The ability of monitoring a laboratory scale power system is crucial for research and educational purposes. This paper proposes the development of a low-cost real-time platform for monitoring a laboratory scale power system. The design and development of this novel monitoring system is based on a TMS320F28335 microcontroller of Texas Instruments. The microcontroller reads voltage and current measurements...
Modern IoT prototyping platforms fall short in terms of energy efficiency, connectivity and software programming practices. We present the design of a new hardware and software platform that addresses these shortcomings by bringing together Mobile, Wearable, Maker and Wireless Sensor Network technologies to enable rapid prototyping with a high degree of synergy and energy efficiency. This is achieved...
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