Low-Earth Orbital Internet of Things Satellite System on the Basis of Distributed Satellite Architecture

Author(s):  
Mikhail Ilchenko ◽  
Teodor Narytnyk ◽  
Vladimir Prisyazhny ◽  
Segii Kapshtyk ◽  
Sergey Matvienko
2019 ◽  
pp. 138-151
Author(s):  
Михаил Ефимович Ильченко ◽  
Теодор Николаевич Нарытник ◽  
Владимир Ильич Присяжный ◽  
Сергей Владимирович Капштык ◽  
Сергей Анатольевич Матвиенко

There are considered issues of building a Low-Earth-Orbit Satellite System designed to provide the Internet of Things services and adapted to the features of the services and systems of the Internet of Things. The considered system provides the creation of the necessary telecommunication infrastructure based on the Low-Earth-Orbit Broadband Access Satellite System and places Computational Facilities into the Low-Earth-Orbit for to ensure the processing of Internet of Things devices and systems information, and perform computations. The architecture of a “Distributed Satellite” was chosen to construct the telecommunications part of the Internets of Things Satellite System. The chosen architecture allows, on the one hand, to ensure the full functionality of complex telecommunication systems, and on the other hand, to use spacecraft of the form factor nano-satellite / cub-sat. The using of the cube-sat spacecraft for development of the satellite-based system allows to significantly reduce the cost of development of the system and the time of the system deploying. A promising direction in the development of the Internet of Things systems is the implementation of the concept of “Fog Computing” for processing Internet of Things information. To implement “Fog Computing”, it was proposed to include into the composition of each “Distributed Satellite” a separate Satellite-Computer and to build an Orbital Distributed Network based on Satellite-Computers. The issues of the inter-satellite connectivity are considered taking into account ensuring the connection between Satellites-Computers in the framework of the Orbital Distributed Computer Network using inter-satellite links between Distributed Satellites, the characteristics of the orbital construction of the Satellite System Constellation. It was proposed to create and deploy the Distributed Localized Database based on the Orbital Distributed Computer Network, for to ensure the continuous provision of Internet of Things services, taking into account the movement of spacecraft in the orbital plane and the rotation of the Earth. It was shown the direction of transmission of the operational part of a Localized Distributed Database. Proposals are made on the distribution of the excess computational load arising in certain regions of the satellite telecommunications system's service area, involving the resource of neighboring satellite computers in its orbital plane and neighboring orbital planes. An algorithm is proposed for moving the excess computational load to the polar and oceanic regions.


2020 ◽  
Vol 26 (4) ◽  
pp. 57-85
Author(s):  
M.Yu. Ilchenko ◽  
◽  
T.M. Narytnyk ◽  
V.I. Prysiazhnyi ◽  
S.V. Kapshtyk ◽  
...  

2018 ◽  
pp. 33-43
Author(s):  
Михаил Ефимович Ильченко ◽  
Теодор Николаевич Нарытник ◽  
Борис Михайлович Рассамакин ◽  
Владимир Ильич Присяжный ◽  
Сергей Владимирович Капштык

Presented are the results of an analysis of the growing interest in the use of low Earth orbits (up to 1500 km high) for the introduction and development of the Internet of things (Internet of Things - IoT). Industrial Internet of things (Industrial Internet of Things-IIoT). Internet of things for remote areas (Remote Internet of Things - RioT, for the purposes of scientific research and economic use of natural resources, control of the development and operation of infrastructure projects, the operation of territorially distributed industrial production, transport infrastructure. Factors significantly limiting the further introduction of micro and nano satellites are given. The authors proposed to resolve this contradiction on the basis of the developed concept of creating the architecture of a "distributed satellite". As an example, the article considers possible applications of the distributed satellite architecture in two segments of the space information systems market: remote sensing of the Earth and telecommunication systems. The application of the "distributed satellite" in radar systems with synthesized aperture (SAR-system) was considered taking into account the requirements of the operators of satellite SAR-systems and consumers of their information. It is shown. that the use of the "distributed satellite" architecture in SAR-systems also makes it possible to realize the technology of multi-static radar with a "soft" interference base (from 200 m to 1 km). The scheme of organization and interaction of the "distributed satellite" in the satellite-transmitter on the platform of the micro satellite, which is the core of the satellite cluster, and several satellites-receivers on the cube-sat platform is presented. The functions performed by the satellite-transmitter, the inter-satellite radio link and the satellite-receiver are considered in detail. The work of the "distributed satellite" is illustrated by the presented structural diagram of the SAR-system for remote sensing of the Earth, a version of the architecture of the low-orbit satellite communication system and the scheme for constructing a satellite system for the provision of IoT services. In conclusion, it is noted that the architecture of the "distributed satellite" makes it possible to effectively use satellites of the class of micro/nano satellite (cube-sat) to create complex space-based information and telecommunication systems


2020 ◽  
Vol 72 (2) ◽  
pp. 326-344
Author(s):  
Henrique Candido de Oliveira ◽  
Rafael Lino dos Santos ◽  
Luciano Aparecido Barbosa ◽  
Diogenes Cortijo Costa ◽  
Ricardo Antunes Barbosa ◽  
...  

O crescimento urbano na perspectiva de território e população se tornou uma das maiores preocupações deste século. Em função deste fenômeno, órgãos de planejamento e gestão de transporte público do país buscam ofertar um serviço de qualidade baseado em um sistema otimizado da rede de transporte. Entender a demanda de passageiros constitui-se como uma tarefa fundamental deste processo. Assim, o método proposto neste trabalho prevê a determinação da demanda de volume de passageiros de forma automatizada a partir de dados de posicionamento GNSS (Global Navigation Satellite System) fornecidos por uma plataforma IoT (Internet of Things). O trabalho tem por objetivo identificar variações de demanda de passageiros, a partir do uso de mapas de densidade, e otimizar rotas do serviço de transporte público, tendo a Universidade Estadual de Campinas como área de estudo. Experimentos foram realizados a partir de uma das rotas que compreendem o sistema de transporte da Universidade. Os resultados foram satisfatórios, pois apresentaram uma redução de 1,43 km em relação ao percurso realizado pela rota original, representando um impacto financeiro inicial de aproximadamente 18% de redução do custo total anual com a contratação de serviço de transporte. Portanto, o método apresenta-se como uma alternativa viável para obtenção de dados fundamentais para tarefa de roteirização para as linhas de ônibus do campus, podendo ser replicado para os demais trajetos que compõem o sistema de transporte público da Universidade.


2018 ◽  
Vol 15 (8) ◽  
pp. 485-500 ◽  
Author(s):  
Nozomi Hitomi ◽  
Hyunseung Bang ◽  
Daniel Selva

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