The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
GPS receivers constitute a topic of great importance since they have application in many fields of science and industry as geodesy, aviation, security and defense to name a few. The understanding of their internals, including the nature of the signals and the algorithms involved in their processing are crucial in the development of software defined receivers, which are the most common GPS receivers...
In this work, the dosimetric performance of several Commercial Of The Shelf photodiodes was studied. They were tested against gamma rays from a teletherapy source and were characterized with the aim of building a one-dimensional array of dosimeters able to measure the the spatial distribution of dose in a radiotherapy irradiation field. An embedded system comprising an array of 40 photodiodes and...
In this work, a WiFi enabled door lock allows users to lock or unlock doors by codes that are managed from a computer or phone where new codes are issued or deleted including temporary codes to guests or office personnel. This work demonstrates an efficient smart lock system that can be configured remotely using Intel Galileo boards. The on-board server is connected through a mini- PCIe Wi-Fi card...
This paper describe the implementation of a lock-in amplifier (LIA) which conforms to the AXI standard for on-chip communication. The design and implementation is based on the Zynq field programmable gate array (FPGA) present in the open-source instrument RedPitaya. The designed architecture is a mixed solution between VHDL hardware modules and software modules, running within an ARM CPU. General...
The MIL-STD-1553B standard specifies a bidirectional data bus that has been used in defense and aerospace industry in a vast number of systems. However, its use for simulation and development environments might lead to unnecessary restriction on the design and usability due to the high cost incurred for hardware and harness procurement. Since Ethernet networks are nowadays extensible present in simulation...
In embedded systems there is a variant of Multicore System on Chip devices (MSoC devices) where not all the computing elements (processor cores) are equal. The differences in the cores of these devices range from different hardware architectures using the same instruction set to completely different processors working together inside the same device. These SoCs are called “Asymmetric Multi Processing...
FPGA devices allows designer to implement complex digital architectures that involve hardware and software components. Because of the different features of hardware and software design, diverse mechanisms and tools have been proposed for debugging and verification of architectures implemented on FPGA devices. Bus level transactions and data processing algorithms are usually difficult to manage together...
In this paper a new open-source and open-hardware framework for Unmanned Ground Vehicle (UGV) control is described. The hardware is based on CIAA (Computadora Industrial Abierta Argentina) and Arduino modules while the software is based on NuttX real-time operating system (RTOS). For communication, the MAVlink protocol is used, also enabling interfacing with ROS (Robot Operating System). The framework...
In this paper, an user interface and a communication platform for a modular home automation system is presented. Its main objective is to contribute to the comfort and autonomy of users who suffer from some type of disability. At the same time, it proposes to give a simple and economic solution to the problematic of the accessibility, since although there are many options of automation in the market,...
This paper focuses on reducing the computational cost of iterative algorithms used to evaluate the schedulability of a Real-Time System scheduled by the Rate Monotonic (RM) or Deadline Monotonic (DM) policies. These algorithms calculate the worst case response time of each task of a real-time system. Several runtime strategies for fault tolerance mechanisms, power consumption methods and execution...
Although, there have been considerable advances in quantum technology, a great scale quantum computer will not be available until about a few years. In the meantime, it requires quantum emulators which allow to study the existing quantum algorithms and the design of new ones. We propose a flexible method to emulate quantum circuits which reduces design and processing time. In this context, we propose...
A library design is presented aimed to standardize C language programming on microcontroller-based platforms. This library defines a simplified Application Programming Interface (API) that abstracts the most common modes of use of typical peripherals found in current microcontrollers in the marketplace. In this way, it becomes possible to program them with no need of knowing details on the underlying...
In this paper a novel method to improve theWireless Sensor Network synchronization process by introducing networkcoded messages is proposed. The presented technique outweighs the effects of the channel’s outage probability by employing the available data to refine the estimates of the pairwise clock offsets. By virtue of the proposed technique, the mean square error of the estimator is significantly...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.