Alin Gheorghita Mazare

University of Pitesti

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Co-Authors

Laurenţiu Mihai Ionescu

University of Pitesti

GŞ

Gheorghe Şerban

University of Pitesti

Daniel Alexandru Visan

National Institute for Aerospace Research Elie Carafoli

Ioan Lita

University of Pitesti

Ion Tutănescu

University of Pitesti

Constantin Anton

University of Pitesti

Nadia Belu

Universitatea Națională de Știință și Tehnologie Politehnica București

Adrian Lita

National Institutes of Health

Nicu Bizon

Universitatea Națională de Știință și Tehnologie Politehnica București

Adrian-Ioan Lita

Universitatea Națională de Știință și Tehnologie Politehnica București

Cooperative Institutions

University of Pitesti

151

Universitatea Națională de Știință și Tehnologie Politehnica București

University of Bucharest

National Institute for Research and Development of Isotopic and Molecular Technologies

University of Science and Technology

Gheorghe Asachi Technical University of Iași

Renewable Energy Systems (United States)

National Institute for Research & Development in Informatics

Valahia University of Targoviste

Technical University of Cluj-Napoca

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Embedded System for 3-axis Acceleration Measuring and Local Computing of Related Speeds and Positions

IFAC Proceedings Volumes (2013)

Laurenţiu Mihai Ionescu Silviu Ioniță Alin Gheorghita Mazare

Interface (matter)

Position (finance)

10.3182/20130925-3-cz-3023.00026

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Hardware Implementation of BCH ErrorCorrecting Codes on a FPGA

International Journal of Intelligent Computing Research (2011)

Laurenţiu Mihai Ionescu Constantin Anton Ion Tutănescu Alin Gheorghita Mazare Gheorghe Şerban

BCH code

10.20533/ijicr.2042.4655.2011.0017

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Citations (10)

Microcontroller based thermal enclosure for electronic boards testing

Adrian Lita Daniel Alexandru Visan Alin Gheorghita Mazare Ioan Lita

In this paper is presented a new approach for implementing a versatile temperature control and monitoring system for thermal enclosures based on Peltier thermoelectric elements. The system is intended to be used for temperature testing of equipped or unequipped electronic printed circuit boards (PCB). These types of tests regarding thermal aging and endurance are very important for verifying the long term reliability of the PCBs because they must be designed for different categories of applications which impose certain operational time periods in various thermal conditions. The control module of the thermal enclosure described in this paper is realized with PIC16F877 microcontroller that communicates through serial interface with a dedicated software application running on PC. The functional parameters of the system can be monitored either on a local LCD or on PC's display. The testing procedures can be configured only from the software application. The power of the heating and cooling elements is around 36Wallowing an effective temperature control in the range [-15-100] °C. Compared with classical implementations, the design using Peltier elements has the important advantage of been capable to operate within a wide range of temperatures, including negative values, which allows more accurate tests and a realistic characterization of the electronic boards.

Enclosure

Interface (matter)

Electronic component

Thermoelectric cooling

10.1109/isse.2017.8000940

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An implementation of BCH codes in a FPGA

International Conference on Applied Electronics (2010)

Gheorghe Şerban Constantin Anton Ion Tutănescu Laurenţiu Mihai Ionescu Alin Gheorghita Mazare

Our paper presents the prototyping of a BCH (Bose, Chaudhuri, and Hocquenghem) encoder and decoder using a Field Programmable Gate Array (FPGA) reconfigurable chip. These types of codes are used in communications networks to detect and correct errors. Typically, the algorithms that implement these codes are sequentially type. Our solution is a combination of a parallel and a sequential implementation. We implemented the BCH code in a 3s400FG456 FPGA. In this implementation we used 15 bits-size word code and the results show that the circuits work quite well.

BCH code

Code (set theory)

Source

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Citations (1)

Comparative and Predictive Analysis of Electrical Consumption during Pre- and Pandemic Periods: Case Study for Romanian Universities

Sustainability (2022)

Paul Cristian Andrei Marilena Stănculescu Horia Andrei Ion Căciulă Emil Diaconu

The pandemic period was caused by COVID-19 and it has been an unprecedented event in the last 100 years of human history. Regarding universities, major changes have occurred both in the online method of education as well as in the patterns of their electrical consumption, respective of both students’ and teachers’ residential electrical consumption. The focus of this research is to conduct and assess a comparative analysis of universities’ electrical consumption during the pre- and pandemic periods. Polynomial regression is used to model the electrical consumption of four Romanian universities during the period 2019–2021. Also, this study proposes a method for predicting the electrical consumption of universities in three months of 2021, compared to that of the same months in 2020. The data analysis shows that the electrical consumption had decreased between 20.6% and 36.29% in the pandemic period of 2020 compared to that of 2019. Additionally, this study evaluates the electrical consumption of universities due to their use of computers, which represents an important percentage of the total consumption; this was between 11.28% and 60.5% in the pre-pandemic year 2019, but this was substantially reduced in 2020, to be between 57.13% and 77.27%. Based on the data that has been provided by students and teachers, the calculated values show that the electrical residential consumption increased by about 20 kWh per month and per computer unit during the pandemic.

Pandemic

Consumption

Romanian

10.3390/su141811346

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Citations (4)

Programable IoT Pills Dispenser

Mădălin Vasile Moise Paul Svasta Alin Gheorghita Mazare

The core of this paper is to present an example of use for a growing technology, which is Internet of Things, with an explicit, complete design and implementation of a custom prototyping embedded system capable to automatically dispense pills in the right dose at given intervals. We've designed the system for use at home and in hospitals by children, adults, the elderly and even by people with visual impairments. The system has been designed to give access to monitor and control through a phone application with no monthly subscription. The user controls the system using the application and on-board keys to set the distribution range of the pills and the number of pills per interval. Also, alerts are sent when the pills were not removed from the tray. The experimental results were obtained by developing the module and using it to dispense pills at certain predefined intervals.

Pill

Tray

10.1109/isse49702.2020.9121107

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Citations (6)

An error detection and correction system based on associative memories

2022 30th Telecommunications Forum (TELFOR) (2012)

Constantin Anton Laurenţiu Mihai Ionescu Ion Tutănescu Alin Gheorghita Mazare Gheorghe Şerban

Associative memories have the property to allow the searching of a binary stored value, having as an input data a partial amount of this value. This property can be used in communication for detecting and correcting the errors encountered in the communication channel. We present in our paper a solution to design and implement a hardware errors' correction and detection circuit using associative memories. In the final part of our paper, an analysis was realized in order to compare the obtained experimental results with performances of other implemented hardware systems.

Associative property

Value (mathematics)

Content-addressable storage

10.1109/telfor.2012.6419274

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QPSK Transmission System for Machine to Machine Communication

Daniel Alexandru Visan Ioan Lita Alin Gheorghita Mazare Laurenţiu Mihai Ionescu

In this paper are presented the results regarding the design and the implementation of an enhanced digital transmission system dedicated especially for applications in the field of machine to machine communications. The improved performances of the system, regarding the transmission speed, spectral efficiency and the resistance to noises, are ensured by the very efficient and reliable implementation based on quadrature phase-shift keying (QPSK) modulation technique. For obtaining a bidirectional communication, the architecture of the proposed design relies on a cascaded configuration. For each direction of communication are used pairs of AD 633 multipliers connected in symmetrical structures that forms a set of balanced quadrature modulators and demodulators. The synchronization of the emission and reception modules that compose the system is realized with a custom scheme that use specialized circuits based on phase-locked-loop principle. Compared with other implementations, the proposed transmission system represents a very suitable solution for direct communication and extended data exchange between various devices, including industrial instrumentation and other equipments that can be integrated into larger networks for increased efficiency.

Transmission system

10.1109/siitme.2018.8599237

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Embedded system for real time analysis of thermal images for prevention of water stress on plants

Alin Gheorghita Mazare Laurenţiu Mihai Ionescu Daniel Alexandru Visan Adrian Lita Gheorghe Şerban

Given the evolution of electronics technology and electronics equipment, their price has fallen, thus making them affordable for the use in new branches: industry, security, agriculture. In this paper we propose a complete integrated analysis system that can learn - through deep learning algorithm - several templates for one parameter (spatial temperature evolution) for the occurrence of water stress and can then recognize these preconditions in the real environment. The system can then generate alarms to farmers / researchers about the occurrence of water stress. The system uses a FLIR camera sensor and capture the spatial arrangement of temperature at plant level, make an local intelligent analysis and return different levels of alarm. Thus, instead of transmitting the image to the central station on a conventional channel, the system will perform an on-site analysis over a period, identify potential water stress by recognizing templates, and will only convey indications of the crop state.

Environmental stress

Water Stress

10.1109/isse.2018.8443604

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Citations (3)

Real time PCB diagnosis using FPGA - implemented video analysis tool

Vasilica A. Berechet Laurenţiu Mihai Ionescu Alin Gheorghita Mazare Ioan Lita Adrian-Ioan Lita

This paper presents a solution to diagnosis printed circuit boards in terms of wiring crossing, based on real-time image analysis. The image is captured using an ordinary video camera (web cam) that is placed above the board while a light source is placed under. The image is processed locally in the FPGA, and bright spots which indicate board cross are isolated. Through an Ethernet interface, the system allows the input "pattern" (correct PCB cross positions) to be compared to the processed image. The comparison can determine the exact position of the cross points and if it corresponds to the expected pattern. The system is meant to be an effective method of real time checking of the printed circuit boards' quality. For this paper we use the SoC circuit Zynq 7000 (XC7Z010).

Interface (matter)

Position (finance)

10.1109/siitme.2015.7342323

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