scholarly journals Image guided radiotherapy moving towards real time adaptive radiotherapy; global positioning system for radiotherapy?

2019 ◽  
Vol 12 ◽  
pp. 1-2
Author(s):  
Helen McNair ◽  
Monica Buijs
Keyword(s):  
Real Time ◽  
Global Positioning System ◽  
Adaptive Radiotherapy ◽  
Positioning System ◽  
Image Guided Radiotherapy ◽  
Image Guided ◽  
Global Positioning

scholarly journals Investigation of accurate method in 3-D position using Cors-Net in Istanbul

2012 ◽  
Vol 18 (2) ◽  
pp. 171-184 ◽  
Author(s):  
Kutalmis Gumus ◽  
Cahit Tagi Celik ◽  
Halil Erkaya
Keyword(s):  
Real Time ◽  
Conventional Method ◽  
Global Positioning System ◽  
Complex Structure ◽  
Accurate Method ◽  
Reference Station ◽  
Positioning System ◽  
Virtual Reference ◽  
Global Positioning ◽  
Set Up

In this study, for Istanbul, there are two Cors Networks (Cors-TR, Iski Cors) providing Virtual Reference Station (VRS), and Flachen Korrektur Parameter (FKP), corrections to rover receiver for determining 3-D positions in real time by Global Positioning System (GPS). To determine which method (or technique) provides accurate method for position fixing, a test network consisting of 49 stations was set up in Yildiz Technical University Davudpasa Campus. The coordinates of the stations in the test network were determined by conventional geodetic, classical RTK, VRS and FKP methods serviced by both Cors-TR and Iski Cors. The results were compared to the coordinates by the conventional method by using total station. The results showed a complex structure as the accuracy differs from one component to another such as in horizontal coordinates, Y components by CorsTR_VRS and Cors_TR_ FKP showed 'best' results while the same technique provided X components consistent accuracy with the Y component but less accurate than by real time kinematic (RTK). In vertical components, of all the techniques used for the h components, CorsTR_VRS showed 'best' accuracy with three outliers.

scholarly journals Implementasi Aplikasi Augmented Reality Berbasis Lokasi Untuk Pengenalan Atraksi Wisata di Kota Denpasar

2020 ◽  
Vol 4 (2) ◽  
pp. 339-343
Author(s):  
Bagus Putu Wahyu Nirmala ◽  
Nengah Widya Utama ◽  
Anak Agung Istri Ita Paramitha
Keyword(s):  
Augmented Reality ◽  
Real Time ◽  
Global Positioning System ◽  
Positioning System ◽  
Global Positioning

Memahami nilai-nilai kearifan lokal melalui seni budaya sangat penting agar warisan leluhur tersebut dapat dilestarikan. Kota Denpasar sebagai Ibu Kota Provinsi Bali memiliki nilai-nilai kearifkan lokal yang melekat di berbagai karya seni di kota tersebut seperti arsitektur bangunan, ukiran, lukisan, patung dan sebagainya. Perkembangan teknologi 4.0 saat ini seharusnya dimanfaatkan tidak hanya kepentingan ekonomi di Kota Denpasar namun juga untuk kepentingan sosial budaya. Salah satu teknologi yang bisa dimanfaatkan adalah augmented reality (AR). Pemanfaatan AR untuk kepentingan budaya memiliki tantangan tersendiri namun bukan tidak mungkin dilakukan. Adanya AR akan mempermudah masyarakat dan wisatawan mengakses informasi dari sebuah objek karya seni. Terlebih lagi informasi tersebut dapat diakses secara real time. Dengan semakin banyaknya karya seni budaya yang tersampaikan makna, informasi dan fakta nilai-nilai kearifan lokal yang terkandung didalamnya akan semakian meningkatkan kepedulian wisatawan untuk menghormati, turut melestarikan dan menjaganya. Pengabdian ini dilaksanakan dalam bentuk implementasi aplikasi AR dalam rangka pengenalan atraksi wisata yang berupa karya seni bangunan seperti arsitektur bangunan dan patung. Adapun aplikasi AR yang diimplementasikan berbasis lokasi dengan memanfaatkan teknologi Global Positioning System (GPS).

scholarly journals Arduino Based Radioactive Tracking System

2019 ◽  
Vol 8 (6S2) ◽  
pp. 329-331
Keyword(s):  
Real Time ◽  
Global Positioning System ◽  
Mobile Communication ◽  
Communication System ◽  
Tracking System ◽  
Toxic Substance ◽  
Positioning System ◽  
Radiation Sources ◽  
Global Positioning ◽  
Arduino Microcontroller

There is a clear need to enhance security action to prevent any malicious use or inadvertent abuse of radiation sources. Some of these radioactive sources are consistently transferred beyond the office or laboratory grounds for work and consulting reasons. This paper presents the early development of the radioactive citation tracking, which combined the Arduino microcontroller, Global Positioning System (GPS) and Global Mobile Communication System (GSM) systems. The monitoring scheme will assist the proprietor track the motion of irradiated sources. The system is completely capable of monitoring the motion of the toxic substance through GPS satellite signals. The GPS position could either be transferred to the headquarters at a set intervalShort Messaging Service (SMS) enables real-time surveillance or storage on a flash drive for offline surveillance and information capturing..

scholarly journals Posicionamento GNSS em Tempo Real: Evolução, Aplicações Práticas e Perspectivas para o Futuro

2020 ◽  
Vol 72 ◽  
pp. 1359-1379
Author(s):  
Claudia Pereira Krueger ◽  
Paulo Sérgio de Oliveira Junior ◽  
Silvio Jacks dos Anjos Garnés ◽  
Daniele Barroca Marra Alves ◽  
Jorge Felipe Euriques
Keyword(s):  
Real Time ◽  
Global Positioning System ◽  
Precise Point Positioning ◽  
Reference Station ◽  
Space Representation ◽  
Positioning System ◽  
Differential Gps ◽  
Virtual Reference ◽  
State Space Representation ◽  
Global Positioning

O posicionamento em tempo real por meio do emprego dos sinais de satélites foi um avanço nas navegações aérea, marítima e terrestre com o surgimento do GPS (Global Positioning System). Contudo as precisões horizontais e verticais de 100 m e 150 m (nível de probabilidade de 95%) alcançadas, estando a SA (Selective Availability) ativada, passaram a não ser satisfatórias para muitas aplicações e os usuários buscaram galgar outros níveis de precisões. Esforços foram investidos no chamado posicionamento diferencial DGPS (Differential GPS), o qual possibilitou obter precisões em torno de dez vezes melhores do que as do posicionamento absoluto.  Posteriormente, usando-se a fase da onda portadora, conseguiu-se realizar posicionamento com maior acurácia por meio do método RTK (Real Time Kinematic), atingindo qualidade centimétrica. Na sequência, houve uma evolução para posicionamentos em rede, empregando, por exemplo, o algoritmo de VRS (Virtual Reference Station). Vários erros nas observáveis dos satélites passaram a ser modelados com uma solução de multiestações em tempo real. A partir de 2012, surgiram serviços e produtos que favoreceram o desenvolvimento do RT-PPP (Real-Time Precise Point Positioning) baseado no conceito SSR (State Space Representation). A busca da solução das ambiguidades no RT-PPP deu origem ao PPP-RTK com menor tempo de fixação das ambiguidades e convergência para a solução acurada do posicionamento. Neste artigo apresenta-se como foi a evolução do posicionamento em tempo real, algumas das aplicações no âmbito nacional e as perspectivas  desta modalidade de posicionamento para o futuro.

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