En este trabajo se presenta el desarrollo de un prototipo de sistema de acceso a un centro de datos usando como identificación una tarjeta de radio frecuencia o RFiD y verificación del rostro del usuario. El sistema se compone de tres módulos de entrada y un módulo central. El objetivo fue diseñar un sistema para transmitir, desde cada módulo de entrada al módulo central, el identificador único universal de la tarjeta RFiD o UUID y la imagen del rostro del usuario para consultar en una base de datos MySQL y en un directorio de fotografías si el usuario puede acceder al área correspondiente del módulo de entrada. Cada módulo de entrada consta de una tarjeta Raspberry Pi 3 B+, un lector de tarjetas RFiD, una cámara de video y una pantalla de cristal líquido o LCD. El módulo central se compone de los mismos elementos que los módulos de entrada y cuenta con una pantalla táctil usada en la interfaz de usuario en lugar de una pantalla LCD. La comunicación entre los nodos es wifi, logrando una precisión del 99,2 % en la verificación del rostro y un tiempo de respuesta de 180 ms usando 310 fotografías entrenadas.
Las micro y pequeñas empresas a nivel nacional y mundial representan la gran mayoría de las unidades económicas y son consideradas el motor de desarrollo económico de nuestro país. El presente trabajo de investigación tiene como objetivo analizar el conocimiento que tienen los directivos sobre las finanzas de las Mypes del municipio de Ixmiquilpan, con la finalidad dealinear los resultados con las estrategias que coadyuven el desarrollo y crecimiento de las mismas. En los resultados se aprecia el conocimiento y control que tiene el director con respecto a las finanzas de la empresa. AbstractMicro and small companies at a national and global level represent the vast majority of economic units and are considered the engine of economic development in our country. The objective of this research work is to analyze the knowledge that managers have about the finances of the Mypes of the municipality of Ixmiquilpan, with the purpose of aligning the results with the strategies that contribute to the development and growth of the same. The results show the knowledge and control that the director has regarding the company'sfinances.
Currently, one of the most important parts of the cloud and computing platforms are the data centers, since they house the equipment where the applications and information processing are executed. The vitalkey areas of data centers are the equipment sites. In addition to the fact that access is controlled and restricted to these areas, continuous monitoring of the presence of people in these areas is critical. The data centers have closed circuit television systems that allow this activity to be carried out; however, these systems do not send alert messages that allow timely reaction to any threat from unauthorized persons who have accessed the equipment site. Similarly, presence detectors of different technologies are used, which present disadvantages compared to the system presented here. For these reasons, in this work a motion detection system was developed based on the processing of video images captured with a camera integrated into a Raspberry Pi 4 card and programmed with Python and OpenCV functions. When the system detects movement, it sends a WhatsApp alert message to a mobile phone. The tests carried out showed that the system is accurate to 98.08%.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.