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Title: A smart location system
Category: Pigsource Papers
Downloadable: Yes 
Project No.:
Research Agency:
Catalog No.: pg3415
Date of Publication: Feb 1 2004 12:00AM
Price: $25.00 US
Authors: José Augusto Pereira da Silva, Rodrigo de Castro Antunes, Fábio Augusto Ferreira de Azevedo et al
Abstract: This paper describes the technology used in the Intelligent Location System developed by Pipeway and includes some of the results already obtained optimizing repair time and logistic costs during the location of anomalies detected by intelligent pigs, a joint operation within the scope of the contract for Subsea Pipeline Recovery in the Guanabara Bay with Petrobras/Transpetro and GDK Engenharia. The system uses the ELF (Extra Low Frequency) transmission and reception technology at points near a pipe, with or without concrete coating, whose signals are recorded in the inspection tool memory to accurately establish reference points, thus preventing excessive dig work or dredging when human and operational risks tend to be high.
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