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Design of an app for a module of practices of basic electrical installations 为基础电气安装实践模块设计一个应用程序
Pub Date : 2022-12-31 DOI: 10.35429/joti.2022.18.6.1.10
Juan Fernando Hernández-Sánchez, Gregorio Castillo-Quiroz, Claudia Yadira Luna-Carrasco, Jacinto Torres-Jiméne
Currently, electrical installations of any kind must comply with minimum safety standards taken into account at the time of their construction and use. This article aims to present the design and construction of a series of practices as well as the design of a mobile application for the improvement of learning in the training of residential electrical installations of the "Mahatma Gandhi" High School of Xilocuautla, Huauchinango, Puebla, through a practice module "ElectriBasic App". The App will serve as a didactic support, since it is a graphic and technical instruction for students who wish to carry out practices related to residential electrical installations. With this module, students will be able to identify, through various previously organized practices, the types of connections and different types of accessory arrangements of a residential electrical installation, as well as identify concepts from basic to intermediate that they do not know within the topics of electricity.
目前,任何类型的电气装置在建造和使用时都必须符合最低安全标准。本文旨在通过“electricbasic App”实践模块,为普埃布拉州Huauchinango, Xilocuautla的“圣雄甘地”高中的住宅电气安装培训提供一系列实践的设计和构建,并设计一款移动应用程序,以提高学习效果。该应用程序将作为教学支持,因为它是一个图形和技术指导,为学生希望进行有关住宅电气安装的实践。有了这个模块,学生将能够识别,通过各种先前组织的实践,连接的类型和不同类型的住宅电气装置的附属安排,以及识别从基本到中级的概念,他们不知道在电力的主题。
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引用次数: 0
Design and validation of a control for a BLDC motor to be applied on a solar water pump 应用于太阳能水泵的无刷直流电机控制的设计与验证
Pub Date : 2022-12-31 DOI: 10.35429/joti.2022.18.6.11.17
Rene Herrera-Velázquez, Jeovany Rafael Rodriguez-Mejia, Alfonso López-Mártine, M. Araiza-Esquivel
This paper presents the design and implementation of a speed control for BLDC motors; This is considered a high-capacity actuator mainly because of its operation, power, and control characteristics. BLDC motors require digital tools for good practices in position and speed control; as well as the power electronics for optimal performance. In order to take better advantage of the characteristics in this type of motor, a control strategy is presented that allows integrating the internet of things, to monitor and satisfy the needs when applied to a BLDC motor, which will also allow driving a submersible pump. Based on these characteristics, it will be possible to have a greater range of operation of the same, consequently, a better regulation of the speed, so that the desired water flow can be provided in the application of solar pumping systems. The results obtained validate the control designed for speed regulation in the system.
本文介绍了一种无刷直流电机调速系统的设计与实现;这被认为是一个大容量执行器,主要是因为它的操作,功率和控制特性。无刷直流电机需要数字工具来进行位置和速度控制的良好实践;以及电力电子器件的最佳性能。为了更好地利用这种类型的电机的特性,提出了一种控制策略,允许集成物联网,监测和满足应用于无刷直流电机的需求,这也将允许驱动潜水泵。基于这些特性,将有可能具有更大的相同操作范围,因此,更好地调节速度,以便在太阳能泵系统的应用中提供所需的水流量。仿真结果验证了系统调速控制设计的正确性。
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引用次数: 0
Advances in the design of an alternative power generation device using piezoelectric 压电替代发电装置的设计进展
Pub Date : 2022-12-31 DOI: 10.35429/joti.2022.18.6.18.26
This article will give the progress of the project of design of a device of alternative energy generation using piezoelectric, applied in the improvement of the lighting of an urban dwelling. Giving the background of the piezoelectric effect, a diagnosis of the conditions of the housing unit in terms of the energy demand for lighting, its vehicular capacity and road conditions, as well as the proposed solution to the demand for electrical energy, indicating the necessary electronic components in the first proposal and ending with the initial design and technical analysis, to conclude with the results of the research project. It is also important to consider that within the 13 modules that are required to form the speed reducer when a vehicle passes it will not pass through the 13 modules, but only a few, so the energy generated will also have variations in the results; unless a way is sought that when the vehicle passes over the reducer, all modules are pressed at the same time.
本文将介绍一种利用压电替代能源发电装置的设计进展,并将其应用于改善城市住宅的照明。给出压电效应的背景,根据照明的能源需求,其车辆容量和道路条件对住房单元的条件进行诊断,以及对电能需求的建议解决方案,在第一个建议中指出必要的电子元件,并以初步设计和技术分析结束,以研究项目的结果结束。同样重要的是要考虑到,当车辆通过时,需要形成减速机的13个模块内不会通过13个模块,而只有几个模块,因此产生的能量也会有结果的变化;除非寻求一种方法,当车辆通过减速器时,所有模块同时被压下。
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引用次数: 0
Indoor CO2 monitoring system using a microcontroller via Bluetooth for coronavirus prevention 室内二氧化碳监测系统采用微控制器通过蓝牙预防冠状病毒
Pub Date : 2022-12-31 DOI: 10.35429/joti.2022.18.6.27.33
H. P. Martínez-Hernández, R. Cortés-Maldonado, R. Morales-Caporal, Alejandro Islas-Cerón
This work describes the design and implementation of the CO2 meter, operated with the PIC18F45K50 microcontroller; which detects the concentration of the gas in parts per thousand (ppm); also, this instrument has an-App downloaded on a mobile device with Android operating system, communicating with the microcontroller via Bluetooth. This to measure the concentration of CO2 which is a colorless gas compound of carbon and oxygen. The measurement of CO2 concentration is a strategy that can warn of the risk of COVID-19 contagion in an enclosed place where a group of people are gathered. In the return to classroom, because the risk of contagion by COVID-19, which is spread through CO2, persists. Also, there are very crowded places due to the daily activities developed by the human being, so now it is not a luxury to take care of the air we breathe to have a healthy life.
本工作介绍了CO2计的设计与实现,采用PIC18F45K50单片机进行操作;以千分之一(ppm)为单位检测气体浓度;同时,该仪器在Android操作系统的移动设备上下载了一个应用程序,通过蓝牙与单片机通信。这是为了测量二氧化碳的浓度,二氧化碳是一种无色的碳和氧的气体化合物。测量二氧化碳浓度是一种可以在人群聚集的封闭场所警告COVID-19感染风险的策略。重返课堂,因为通过二氧化碳传播的COVID-19感染的风险仍然存在。此外,由于人类发展的日常活动,有非常拥挤的地方,所以现在照顾我们呼吸的空气来拥有健康的生活并不是一种奢侈。
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引用次数: 0
Aligning system for a pick-and-place BGA soldering equipment 用于取放式BGA焊接设备的对准系统
Pub Date : 2022-06-30 DOI: 10.35429/joti.2022.17.6.17.21
D. Talavera-Velázquez, J. M. Gutiérrez-Villalobos, E. Rivas-Araiza, E. Mejia-Beltran
The necessity to have semiconductor components inside mobile, thinner and lighter devices, has created a new form to solder these electronics components to their main boards. This work for soldering superficial mounting semiconductors has become a precision task. For that reason, nowadays, the construction of equipements to pick and place semiconductors, has got an important attention. A high accuracy aligning systems are required in those equipements. In this work, an aligning prototype for superficial soldering systems is presented, using a laser devise with a set of mirrors, and an aligning mechanic system, which is low-cost, modular and upgradeable.
由于需要在更薄、更轻的移动设备中安装半导体元件,因此创造了一种将这些电子元件焊接到主板上的新形式。这种焊接表面安装半导体的工作已成为一项精密任务。由于这个原因,如今,挑选和放置半导体的设备的建设已经得到了重要的关注。这些设备需要高精度的对准系统。在本工作中,提出了一种表面焊接系统的对准原型,使用一组带有反射镜的激光装置和一种低成本,模块化和可升级的对准机械系统。
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引用次数: 0
Solar concentrating and redirecting systems for application in an agricultural construction 农业建筑中应用的太阳能集中和定向系统
Pub Date : 2022-06-30 DOI: 10.35429/joti.2022.17.6.10.16
This work deals with the design and evaluation of a concentrator-luminoduct system for daylighting. A concentrator with a truncated cone profile was designed to capture, transfer and diffuse sunlight, which was concentrated and transported by reflection along the walls of the system and finally projected to the interior of an agricultural building. The illuminance achieved by the system with and without concentration was compared and a significant difference in illumination levels was found. The concentrator obtained concentration factors between 1.7 and 3.6. The critical aspects that determined the concentration of natural light were the angle of acceptance (45.68º), the orientation (45º and 90º) and the reflectance of the material used (95%), in addition, it was possible to reduce the dimensions of these systems, conserving the illuminance. It was proven that this system increased the illumination of the interior space where the light did not reach naturally, improving the illuminance levels (300-500 lx), according to CIE (Commission Internationale l'Eclarige). It was demonstrated that the system represents a viable and adaptable solution for naturally illuminating buildings.
本工作涉及采光聚光系统的设计和评价。一个具有截锥形轮廓的聚光器被设计用来捕获、转移和漫射阳光,这些阳光沿着系统的墙壁通过反射被集中和传输,最后投射到农业建筑的内部。比较了系统在有浓度和没有浓度时的照度,发现照度水平有显著差异。富集器的富集系数在1.7 ~ 3.6之间。决定自然光浓度的关键因素是接收角(45.68º)、朝向(45º和90º)和所用材料的反射率(95%),此外,可以减少这些系统的尺寸,保持照度。根据国际照明委员会(CIE)的说法,该系统增加了光线无法自然到达的室内空间的照度,提高了照度水平(300-500 lx)。结果表明,该系统为自然照明建筑提供了可行且适应性强的解决方案。
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引用次数: 0
Two Axis Solar Tracker Monitoring 两轴太阳能跟踪器监测
Pub Date : 2022-06-30 DOI: 10.35429/joti.2022.17.6.22.28
Solar trackers have emerged as an alternative for increased solar energy collection for photovoltaic panels (PV). However, PV trackers could eventually fail or have unexpected changes during tracking, requiring continuous knowledge of the solar tracker parameters at any time. It is possible to accomplish with IoT communication, which consists of implementing microcontrollers, embedded computers and network communication to transmit the information to a server. This paper presents a monitoring scheme for two-axis single pole solar trackers. In contrast to the published papers in the state of the art, it has more functionality and greater flexibility, employing a Wi-Fi connection with the Raspberry PI 4B. This monitoring scheme has been experimentally tested using the motors for a two-axis single pole solar tracker, resulting in an excellent performance along their trajectories.
太阳能跟踪器已成为增加太阳能收集光伏板(PV)的替代方案。然而,光伏跟踪器最终可能会出现故障或在跟踪过程中发生意外变化,这需要随时持续了解太阳能跟踪器的参数。可以通过物联网通信完成,其中包括实现微控制器,嵌入式计算机和网络通信,以将信息传输到服务器。本文提出了一种双轴单极太阳跟踪器的监测方案。与目前发表的论文相比,它具有更多的功能和更大的灵活性,采用了与树莓派4B的Wi-Fi连接。该监测方案已在两轴单极太阳跟踪器的电机上进行了实验测试,取得了良好的跟踪性能。
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引用次数: 0
Design and construction of a token vending machine for wireless internet connection 用于无线互联网连接的代币自动售货机的设计与构建
Pub Date : 2022-06-30 DOI: 10.35429/joti.2022.17.6.1.9
Carmen Jeannette Sampayo-Rodríguez, Gregorio Castillo-Quiroz, Aldo Hernández-Luna, Iberio Cabrera-Hernández
This paper presents the design and construction of a machine that automates the process of selling access credentials to a wireless network. For its construction, the V methodology for project management was followed. The machine consists of a closed box with two buttons on the outside to indicate the start and end of the transaction, a 16x2 LCD screen with an I2c conversion interface to show transaction, user and password indications, a multi-currency purse and four LED lights that serve as indicators of the amount entered. Internally the machine consists of an ESP-8266-E development board, an Mb102 breadboard source module, a 12V 2.5A eliminator, a 5.0 V universal charger cube and a breadboard. Logically, the web-based spreadsheet (Google sheets), Google apps script and the Arduino integrated development environment were used. The result is a low-cost prototype, which provides controlled internet access credentials for multiple users.
本文介绍了一种能够自动向无线网络出售访问凭证的机器的设计和构造。在构建过程中,遵循了项目管理的V方法论。这台机器由一个封闭的盒子组成,盒子外面有两个按钮来指示交易的开始和结束,一个16 × 2的液晶屏幕,带有I2c转换接口,显示交易、用户和密码指示,一个多币种钱包和四个LED灯,作为输入金额的指示。本机内部由一个ESP-8266-E开发板、一个Mb102面包板源模块、一个12V 2.5A消光器、一个5.0 V通用充电器盒和一个面包板组成。逻辑上,使用了基于web的电子表格(Google sheets)、Google apps脚本和Arduino集成开发环境。其结果是一个低成本的原型,它为多个用户提供受控的互联网访问凭证。
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引用次数: 0
Bioethanol production of cheese whey in continuous culture 连续培养中奶酪乳清的生物乙醇生产
Pub Date : 2021-06-30 DOI: 10.35429/joti.2021.15.5.22.25
F. Sandoval-Salas, Carlos Méndez-Carreto, Christell Barrales-Fernández, Graciela Ortega-Avila
The cheese industry produces a large amount of waste, the equivalent of 9L of cheese whey for every 10L of milk (Murari et al., 2018; Pendon et al., 2021; Sar et al., 2021). Whey is composed by lactose and proteins, mainly (Murari et al., 2018; Murari et al., 2019; Tesfaw et al., 2021). In most cases, cheese whey had not added value or specific use, being discarded and causing very important environmental implications (Maruri et al., 2018; Tesfaw et al., 2021; Sar et al., 2021). In the present study, the production of bioethanol from cheese whey were analyzed, using Kluyveromyces marxianus as inoculum, under continuous culture conditions (28°C, agitation at 100 rpm, aeration at 1 vvm, feed at 8.63 mL/min), where it was established that is possible to obtain yields of 0.62 g of ethanol per g of lactose in the first 18 h, this makes it feasible for the continuous production of ethanol with cheese whey with minimal pretreatment.
奶酪行业产生大量废物,相当于每10L牛奶产生9L奶酪乳清(Murari等人,2018;Pendon et al., 2021;Sar et al., 2021)。乳清主要由乳糖和蛋白质组成(Murari et al., 2018;Murari等人,2019;Tesfaw et al., 2021)。在大多数情况下,奶酪乳清没有附加价值或特定用途,被丢弃并造成非常重要的环境影响(Maruri等人,2018;Tesfaw等人,2021;Sar et al., 2021)。在本研究中,以马氏克鲁维菌为接种物,在连续培养条件下(28°C, 100 rpm搅拌,1 vvm曝气,8.63 mL/min进料),分析了奶酪乳清生产生物乙醇的情况,确定了在前18小时内每g乳糖可以获得0.62 g乙醇的产量,这使得用奶酪乳清连续生产乙醇成为可能。
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引用次数: 0
Design of an academic data repository applying data warehouse technology 应用数据仓库技术设计一个学术数据存储库
Pub Date : 2021-06-30 DOI: 10.35429/joti.2021.15.5.8.15
Luz María Hernández-Cruz, M. Castillo-Téllez, Martina Díaz-Rosado, Johan Oliver Chan-Chi
This article presents the proposal for the design and construction of an academic data repository under data warehouse technology. The initiative of the study arises from the identification of large volumes of data and the importance of combining them to analyze relevant indicators in decision-making by managers in higher-level educational institutions. The applied research proposes the use and implementation of the Hefesto v2.0 methodology capable of guiding step by step in the development of the data warehouse ensuring its start-up. As an added value, emerging technologies are integrated, particularly Microsoft SQL Server 2019 and Visual Studio 2019. The exposed results will serve as an applied study case for information systems administrators, administrative personnel and directors of educational institutions who wish to implement strategies with the aim of optimizing and make more efficient the analysis of data oriented to the benefit of educational processes that allow discerning relevant findings for decision-making.
本文提出了基于数据仓库技术的学术数据存储库的设计与构建方案。这项研究的倡议源于对大量数据的识别,以及将这些数据结合起来分析高等教育机构管理人员决策中的有关指标的重要性。应用研究提出了Hefesto v2.0方法的使用和实现,该方法能够逐步指导数据仓库的开发,确保其启动。作为附加价值,集成了新兴技术,特别是Microsoft SQL Server 2019和Visual Studio 2019。所公布的结果将作为一个应用研究案例,供信息系统管理员、行政人员和教育机构主任使用,他们希望执行战略,以优化和提高面向教育过程的数据分析的效率,以便为决策提供辨别相关结果。
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引用次数: 0
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Revista de la Invención Técnica
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