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Authors
Advisor(s)
Abstract(s)
Desde tempos remotos que homens faziam a vigilância de bens e mercadorias e mais
recentemente também de pessoas com o intuito de dissuadir roubos, atos de vandalismo e de
violência. Nos últimos anos, com a evolução das novas tecnologias verificou-se a sua adoção
para auxílio da vigilância. Os atos de terrorismo que têm acontecido um pouco por todo o
mundo trouxeram um clima de insegurança à população mundial. Este fenómeno, juntamente
com o elevado número de roubos e atos de violência levou à expansão de utilização dos meios
de videovigilância de forma a dissuadir estes tipos de crime podendo mesmo, nalguns casos
servir como prova para punir os autores dos mesmos.
Em Portugal tem-se verificado uma escalada de crimes nas zonas mais rurais não só de bens
como as alfaias agrícolas mas também de frutos e mesmo de animais. Estes crimes predominam
em locais rurais, relativamente distantes das povoações e em locais onde não existem (ou são
praticamente inexistentes) infraestruturas necessárias para implementar meios de
videovigilância como a falta de rede elétrica e internet o que torna quase inviável a existência
de sistemas de videovigilância nesses locais. Dotar esses locais das infra estruturas necessárias
poderia tornar-se demasiado dispendioso e os vigilantes humanos poderiam correr riscos no
meio dos montes ou noutros locais remotos para além dos seus elevados custos.
Para além do problema dos roubos, existe um outro flagelo relacionado com os incêndios na
floresta portuguesa, que todos os anos é dizimada pelo fogo devido a incêndios que surgem na
sua maioria causados pelo homem sendo uma parte significativa os de origem criminosa.
Para dar resposta a estes problemas e no sentido de vigiar e dissuadir estes tipos de crimes,
iniciamos um estudo que pretende propor um protótipo de um sistema de videovigilância para
locais remotos (SVR - Sistema de Videovigilância Remota) de baixo custo de forma a diminuir o
número de crimes e assim minimizar os prejuízos económico e sociais causados pelos mesmos.
Pretendemos estudar o problema e analisar tecnologias com potencial para propor uma
solução que possa auxiliar a vigilância nesse tipo de locais com o pressuposto de poder vir a
contribuir para a diminuição deste tipo de crimes devido ao seu efeito dissuasor pelo facto de
se poder divulgar que estes locais já têm uma solução de vigilância oculta.
A solução proposta contempla um sistema de videovigilância com uma camara construída com
base num Raspberry Pi onde o vídeo é transmitido em streaming via Web através de
comunicações móveis. A alimentação do sistema nestes espaços sem energia elétrica é feita
através de um painel fotovoltaico. É proporcionado ao utilizador uma interface para visualizar
o vídeo transmitido e um mecanismo de notificações por email. É ainda possível a visualização
de imagens gravadas num cartão de memória relativas a ocorrências de deteção de
movimentos. Foram realizados inúmeros testes ao protótipo SVR sendo os resultados obtidos
aqui descritos.
Since ancient times that men make surveillance of goods and commodities and more recently also from people in order to discouraging theft, vandalism and violence. In recent years, with the evolution of new technologies verified its adoption to assistance surveillance. Acts of terrorism that have taken place all over the world brought a climate of insecurity to the world population. This phenomenon, coupled with the high number of thefts and acts of violence led to the expansion of use of video surveillance means in order to discourage these kinds of crime may even, in some cases serve as evidence to punish the perpetrators thereof. In Portugal has been verified escalating of crime in the most rural areas not only of goods such as agricultural implements but also fruit and even animals. These crimes predominate in rural places, relatively far from the villages and in places where there are not (or are practically nonexistent) infrastructure necessary to implement video surveillance means such as lack of electricity grid and internet which makes almost impossible the existence of video surveillance systems in these places. Provide these local structures needed infrastructure could become too costly and human vigilantes could take risks among the hills or other remote locations in addition to its high costs. Apart from the theft problem, there is another scourge related to forest fires in Portugal, which every year is decimated by fire because of fires that occur mostly manmade being a significant part of the criminal origin. To respond to these problems and in order to monitor and deterring these kinds of crimes, we initiated a study that intends to propose a prototype of a video surveillance system for remote locations (SVR - Remote Video Surveillance System) low cost in order to reduce the number of crimes and so minimize the economic and social damage caused by them. We intend to study the problem and analyze potential with technologies to propose a solution that can help surveillance in such places with the assumption of being able to contribute to reducing this type of crime because of its deterrent effect in that it is able to disseminate these places already have a covert surveillance solution. The proposed solution includes a video surveillance system with a camera built on a Raspberry Pi where the video is broadcast in streaming via the Web through mobile communications. The system power in these spaces is done without electricity through a photovoltaic panel. It provided the user with an interface to view the transmitted video and a mechanism for email notifications. It is even possible to display images recorded to a memory card for the motion detection events. A large number of tests were performed to the SVR prototype and the results are described herein.
Since ancient times that men make surveillance of goods and commodities and more recently also from people in order to discouraging theft, vandalism and violence. In recent years, with the evolution of new technologies verified its adoption to assistance surveillance. Acts of terrorism that have taken place all over the world brought a climate of insecurity to the world population. This phenomenon, coupled with the high number of thefts and acts of violence led to the expansion of use of video surveillance means in order to discourage these kinds of crime may even, in some cases serve as evidence to punish the perpetrators thereof. In Portugal has been verified escalating of crime in the most rural areas not only of goods such as agricultural implements but also fruit and even animals. These crimes predominate in rural places, relatively far from the villages and in places where there are not (or are practically nonexistent) infrastructure necessary to implement video surveillance means such as lack of electricity grid and internet which makes almost impossible the existence of video surveillance systems in these places. Provide these local structures needed infrastructure could become too costly and human vigilantes could take risks among the hills or other remote locations in addition to its high costs. Apart from the theft problem, there is another scourge related to forest fires in Portugal, which every year is decimated by fire because of fires that occur mostly manmade being a significant part of the criminal origin. To respond to these problems and in order to monitor and deterring these kinds of crimes, we initiated a study that intends to propose a prototype of a video surveillance system for remote locations (SVR - Remote Video Surveillance System) low cost in order to reduce the number of crimes and so minimize the economic and social damage caused by them. We intend to study the problem and analyze potential with technologies to propose a solution that can help surveillance in such places with the assumption of being able to contribute to reducing this type of crime because of its deterrent effect in that it is able to disseminate these places already have a covert surveillance solution. The proposed solution includes a video surveillance system with a camera built on a Raspberry Pi where the video is broadcast in streaming via the Web through mobile communications. The system power in these spaces is done without electricity through a photovoltaic panel. It provided the user with an interface to view the transmitted video and a mechanism for email notifications. It is even possible to display images recorded to a memory card for the motion detection events. A large number of tests were performed to the SVR prototype and the results are described herein.
Description
Keywords
SVR Raspberry Pi Streaming Câmara Web Internet Camera Video surveillance