scholarly journals Automation and Control of Vehicle Flow using Raspberry Pi

Author(s):  
Leonardo Chancay-García ◽  
Walter Zambrano-Romero ◽  
Tatiana Zambrano-Solorzano

The number of vehicles in the world's cities increases exponentially, this is the case of Latin American cities, and particularly in the city of Portoviejo, province of Manabí in Ecuador, has been growing considerably in recent years, the city has been expanding towards its surroundings. Due to this big number of vehicles, which also adds little planning to improve the use of public transport, little planning to improve urban vehicular flow, the centralization of administrative area and main shops in the city, are the main reasons why in certain times of the day the traffic can become a little slow. Universidad Técnica de Manabí, has the objective of modernizing the improvement of vehicular flow in its surroundings and in addition to automating the vehicular entrance to its facilities through the automation of the respective permit for visiting drivers and staff. In this paper we show the methodology and tools necessary to create a system to control vehicles entry and exit using a Raspberry Pi, an analysis of the different technologies that can be used to improve vehicular flow is also included, approaching the Internet of Things.

Author(s):  
Luis David Cárdenas-Pérez ◽  
Luis David Campos-Cruz ◽  
Andrés Salinas-Rico ◽  
Moisés Agustín Martínez-Hernández

The massive connection of devices to the internet, known as the internet of things, brings with it a great opportunity for improvement in any technological field. With its incorporation into the automation and control techniques that make up home automation, it is sought to integrate in a network the devices that operate in a space, generating a constant exchange of information. An access control system that integrates IoT is presented, as a tool to manage records in real time. The device in turn stores a database with the access profile of each user, whose parameters allow the establishment of entry times, defined by the administrator. With its implementation, a secure space is generated, where each access that is presented is registered in the IoT server, as well as the profile of the user that has entered. The security method used operates through a numeric keypad, a technique that, due to its effectiveness, is commonly used in a large part of digital systems, in addition to its low implementation cost. In this way, a system adapted to the conditions demanded by current technology is obtained.


2018 ◽  
Vol 5 (6) ◽  
pp. 745 ◽  
Author(s):  
Erfan Rohadi ◽  
Dodik Widya Adhitama ◽  
Ekojono Ekojono ◽  
Rudy Ariyanto ◽  
Rosa Andrie Asmara ◽  
...  

<p><strong>Abstrak</strong><em><br /></em></p><p><em>Internet of Things</em> merupakan perkembangan teknologi berbasis internet masa kini yang memiliki konsep untuk memperluas manfaat yang benda yang tersambung dengan koneksi internet secara terus menerus. Sebagai contoh benda elektronik, salah satunya adalah Raspberry Pi. Teknologi ini memiliki kemampuan memberikan informasi secara otomatis dan <em>real time</em>. Salah satu pemanfaatan perkembangan teknologi ini di bidang perikanan adalah sistem pemantauan air kolam. Pada prakteknya, para pembudidaya ikan lele masih melakukan pemantauan tersebut secara konvensional yaitu dengan cara mendatangi kolam ikan. Hal ini berpengaruh terhadap efisiensi waktu dan keefektifan kerja pembudidayaan ikan.<strong></strong></p><p>Pada penelitian ini dikembangkan alat yang berfungsi untuk membantu memantau dan mengontrol kualitas air kolam ikan lele berbasis <em>Internet of Things</em>. Piranti yang diperlukan adalah sensor keasaman (pH), sensor suhu dan sebuah relay untuk mengatur aerator oksigen air. Data dari sensor-sensor tersebut direkam oleh Raspberry Pi untuk kemudian diolah menjadi informasi sesuai kebutuhan pengguna melalui perantara internet secara otomatis. Selanjutnya data-data tersebut dapat ditampilkan dengan berbagai macam platform, salah satunya dengan model <em>mobile web</em>.  <strong></strong></p><p>Hasil uji menunjukan bahwa pengembangan teknologi <em>Internet of Things</em>  pada sistem ini dapat membantu pembudidaya untuk melakukan pemantauan terhadap kualitas air secara otomatis. Sistem otomasi yang dikembangkan menjanjikan peningkatan keberhasilan dalam pembudidayaan ikan lele.</p><p> </p><p><em><strong>Abstract</strong></em></p><p><em>For recent years, the Internet of Things becomes the topic interest of improvement based on technologies that have the concept of extending the benefits of an object that is connected to an internet constantly. This technology has the ability to provide information automatically and real time. One of expansion in the field of fishery is the water ponds monitoring system. In the fact, the catfish farmers are still doing conventional monitoring by coming to the fish pond. This could affects the efficiency of time and effectiveness of fish cultivation work.</em></p><p><em>In this research, the systems that can monitor and control the quality of catfish water ponds based on the Internet of Things is proposed. The necessary tools are acidity sensor (pH), temperature sensor and a relay to adjust water oxygen aerator. The data sensors have been recorded by Raspberry Pi that processed into information according to user needs through internet automatically. Furthermore, these data have been displayed with a variety of platforms, one with a mobile web model.</em></p><p><em>The results shows that the system based on Internet of Things technology can monitor the water quality automatically. The automation system promises the productivity of catfish farming.</em></p>


1962 ◽  
Vol 4 (4) ◽  
pp. 473-493 ◽  
Author(s):  
Richard M. Morse

This essay will advance two interrelated hypotheses about the Latin American city. The first of them has to do with the role of the city in the settlement of the New World. The second suggests certain characteristics of the modern Latin American metropolis.


2018 ◽  
Vol 7 (11) ◽  
pp. 428 ◽  
Author(s):  
Monika Kuffer ◽  
Jiong Wang ◽  
Michael Nagenborg ◽  
Karin Pfeffer ◽  
Divyani Kohli ◽  
...  

The continuous increase in deprived living conditions in many cities of the Global South contradicts efforts to make cities inclusive, safe, resilient, and sustainable places. Using examples of Asian, African, and Latin American cities, this study shows the scope and limits of earth observation (EO)-based mapping of deprived living conditions in support of providing consistent global information for the SDG indicator 11.1.1 “proportion of urban population living in slums, informal settlements or inadequate housing”. At the technical level, we compare several EO-based methods and imagery for mapping deprived living conditions, discussing their ability to map such areas including differences in terms of accuracy and performance at the city scale. At the operational level, we compare available municipal maps showing identified deprived areas with the spatial extent of morphological mapped areas of deprived living conditions (using EO) at the city scale, discussing the reasons for inconsistencies between municipal and EO-based maps. We provide an outlook on how EO-based mapping of deprived living conditions could contribute to a global spatial information base to support targeting of deprived living conditions in support of the SDG Goal 11.1.1 indicator, when uncertainties and ethical considerations on data provision are well addressed.


2010 ◽  
Vol 25 (2) ◽  
pp. 395 ◽  
Author(s):  
Inaiá María Moreira de Calvalho ◽  
Gilberto Corso Pereira

En este artículo se analiza la evolución reciente de la segregación socioespacial y la de la conformación urbana en la ciudad de Salvador, a la luz del debate sobre las transformaciones de las metrópolis dentro del capital globalizado. Si bien se reconoce que todas las grandes ciudades terminan siendo alcanzadas por la globalización, en el texto se resalta, sin embargo, que los efectos de ese proceso no son uniformes ni convergen en un modelo único de ciudad. Es necesario considerar la conformación histórica de cada una de ellas, sus instituciones, actores y decisiones políticas locales dentro de una dinámica definida por la continuidad/transformación, donde lo que ya existía condiciona la irrupción de lo nuevo, que en muchos casos ya había comenzado a delinearse en el pasado. Mediante la demostración de la conformación de una metrópoli extremadamente desigual y segregada y la medida en que las transformaciones han agravado tales alteraciones al paso de los últimos años, esta revisión del caso de Salvador se propone exponer algunas reflexiones para entender mejor los efectos del proceso de globalización sobre las grandes ciudades de América Latina. AbstractThis article analyzes the recent evolution of the socio-spatial segregation and urban configuration of the city of Salvador, in light of the debate on the transformations of metropolises within globalized capital. Although it is a well-known fact that large cities end up being absorbed by globalization, the text stresses the fact that the effects of this process are not uniform nor do they converge in a single model of a city. It is essential to  consider the historical moment of each of them, their institutions, actors and local political decisions within a dynamic defined by continuity/transformation, in which what already existed conditions the emergence of what is new, which in many cases, had already begun to be shaped in the past. Through the demonstration of the configuration of an extremely unequal, segregated metropolis, and the extent to which the transformations have aggravated these alterations over the years, this review of the case of Salvador proposes offering some reflections to provide a better understanding of the effects of globalization on major Latin American cities.


Religions ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 791
Author(s):  
Lidia Rodríguez ◽  
Juan Luis de León ◽  
Luzio Uriarte ◽  
Iziar Basterretxea

A number of empirical studies have shown the continuous lack of adherence and the growing autonomy of the population regarding religious institutions. This article reflects on the kind of relationship between deinstitutionalisation and religious experience based on the following hypothesis: the evident decline in religious institutions does not necessarily lead to the disappearance or the weakening of religious experience; rather, it runs simultaneously with a process of individualisation. Our aim is to provide empirical evidence of such transformations; therefore, we do not get involved in speculations, but take into account the contributions of scholars concerning three key terms integrated in the conceptual framework of “religious experience’’: “experience of God”, “God image”, and “institutional belonging”. We analysed 39 in-depth interviews with a qualitative approach; interviews were conducted during the years 2016–2018 amongst Evangelical and Catholic populations in three Latin American cities (Córdoba, Montevideo, and Lima) and in the city of Bilbao (Spain). These interviews clearly indicate a growing autonomy from the religious institution, while evidencing a rich range of experiences of God and a great diversity of God representations. In both cases, they point to processes of individualisation of believers who elaborate their own religious experience in a personal and complex way.


2019 ◽  
pp. 44
Author(s):  
Marlown Cuenca Gonzaga

ResumenLa informalidad es parte del paisaje urbano en la ciudad de Quito, ha crecido deprisa y heterogéneamente, desbordada por condicionantes físicas y condicionantes económico-sociales propias de la evolución de las ciudades modernas latinoamericanas, cuya economía depende directamente de la extracción de recursos naturales, esto ha creado dos ciudades con características diferenciadas: la ciudad formal y la ciudad informal. Este estudio trata de entender estos dos modelos a través de una herramienta que analice las relaciones de los componentes urbanos insertados en la globalidad de la complejidad urbana. Desde la hipótesis se comprueba que los barrios de invasión y autoconstrucción generan mecanismos y procesos urbanos evolutivos, que guardan mejores relaciones escalares y relaciones internas de conectividad más dinámicas e intensas que los sistemas planificados convencionales para la vivienda social.AbstractInformality is part of the urban landscape in the city of Quito, it has grown rapidly and heterogeneously, overwhelmed by physical conditions and socio-economic conditions of the evolution of modern Latin American cities, whose economy depends directly on the extraction of natural resources. has created two cities with different characteristics: the formal city and the informal city. This study tries to understand these two models through a tool that analyzes the relationships of the urban components inserted in the globality of urban complexity. From the hypothesis it is verified that the neighborhoods of invasion and self-construction generate evolutionary urban mechanisms and processes, which have better scalar relationships and internal connectivity relationships that are more dynamic and intense than the conventional planned systems for social housing.


Author(s):  
Bill Karakostas

To improve the overall impact of the Internet of Things (IoT), intelligent capabilities must be developed at the edge of the IoT ‘Cloud.' ‘Smart' IoT objects must not only communicate with their environment, but also use embedded knowledge to interpret signals, and by making inferences augment their knowledge of their own state and that of their environment. Thus, intelligent IoT objects must improve their capabilities to make autonomous decisions without reliance to external computing infrastructure. In this chapter, we illustrate the concept of smart autonomous logistic objects with a proof of concept prototype built using an embedded version of the Prolog language, running on a Raspberry Pi credit-card-sized single-board computer to which an RFID reader is attached. The intelligent object is combining the RFID readings from its environment with embedded knowledge to infer new knowledge about its status. We test the system performance in a simulated environment consisting of logistics objects.


Humanities ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 18 ◽  
Author(s):  
Clovis Ultramari ◽  
Fernanda Cantarim ◽  
Manoela Jazar

This paper investigates the circulation of ideas regarding the city among selected countries in Latin America. It discusses convergences between academic and scientific institutions and investigative weakness in partnerships between Brazil, Argentina, Chile, Colombia, and Mexico. It identifies two historical moments: one of vertical dialogues between Latin America and central countries in the elaboration of urban plans (20th century) and another of contemporary academic exchange signalling a horizontal dialogue that is fragile and sporadic but distinct from those observed in the past. Empirical reference is obtained from the analysis of scientific events and papers published by distinguished post-graduate programs concerning urban topics in selected countries, during the time frame of 2000–2015. The methodological approach is based on a bibliographic review and content analysis. Results indicate that the old “one-way” of transfer of urban planning ideas from central countries to Latin America is changing; slowly, the continent has been growing more independent in terms of knowledge creation and circulation.


Tempo Social ◽  
2019 ◽  
Vol 31 (1) ◽  
pp. 55-69
Author(s):  
Sebastian Dorsch

The article seeks to investigate urban phenomena in São Paulo’s 19th and 20th centuries by utilizing Henri Lefebvre’s concept of appropriation. Thus I focus on the relations between urban space(s) and its inhabitants, and the analysis of the city – usually perceived as space – becomes a spatio-temporal and relational analysis regarding dynamic practices, conflicts, etc. understood as urban phenomena. How did the inhabitants appropriate São Paulo? May we state special forms by comparing it to other Latin American cities of former times? How did the migrants arriving at the end of 19th century change old forms of living in the city? I conclude with remarks and critics on the potential of using the concept of appropriation in urban studies.


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