Use of a Single L1 GPS Receiver for Monitoring Structures: First Results of the Detection of Millimetric Dynamic Oscillations

Schaal, Ricardo Ernesto; Larocca, Ana Paula Camargo; Guimarães, Gabriel do Nascimento

doi:10.1061/(asce)su.1943-5428.0000070

Cited by 10 publications

(8 citation statements)

References 12 publications

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“…The vibration frequencies and displacements of the bridge were accurately identified by the abovementioned GPS method . Another experiment was conducted on the Hawkshaw Bridge in Canada with a similar result …”

Section: Innovative Techniques Of Gnss Data Acquisitionmentioning

confidence: 99%

“…58 Another experiment was conducted on the Hawkshaw Bridge in Canada with a similar result. 85 Further to the abovementioned geodetic receivers, preliminary studies had assessed the performance of nongeodetic single-frequency GPS modules with an its cost-effectiveness and compact advantages. Jo et al 82 performed numerous tests to investigate the overall performance of four sets of GlobalTop Gms-u1LP GPS modules, with an overall size of 16 × 16 × 6 mm, for dynamic displacement monitoring (Figure 11).…”

Section: Low-cost Single Frequency Receiver Systemmentioning

confidence: 99%

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Global Navigation Satellite System‐based positioning technology for structural health monitoring: a review

Meng

Yan

et al. 2019

Struct Control Health Monit

114

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Summary Global Navigation Satellite System (GNSS) positioning technology has had widespread applications in the structural health monitoring as its overall performance has improved significantly in the last two decades. It is capable of providing timely and accurate structural vibration information such as dynamic displacements and modal frequencies at higher performance than traditional accelerometers. The studies summarized in this paper focus on the improvement of the multi‐sensors and multi‐constellation data acquisition techniques, the improvement of multiple approaches for erroneous noise mitigation, and innovative modal parameter identification methods. We also detailed the applications of GNSS on the deformation monitoring for towers, chimneys, tall buildings, and bridges. With continuous enhancements in the algorithm and hardware of GNSS, it is expected that the application of GNSS technology can be expanded to other fields such as bridge cable‐force measurements and bridge weight‐in‐motion as well as structural deformation monitoring.

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Section: Innovative Techniques Of Gnss Data Acquisitionmentioning

confidence: 99%

Section: Low-cost Single Frequency Receiver Systemmentioning

confidence: 99%

Global Navigation Satellite System‐based positioning technology for structural health monitoring: a review

Meng

Yan

et al. 2019

Struct Control Health Monit

114

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“…If we consider single frequency GPS receivers but not strictly low-cost sensors, many other examples arise from literature. In [21], a single frequency GPS receiver was used for dynamic oscillation detection through experimental tests. Also, a real case on the Hawksham Bridge in Nackawic (New Brunswick, Canada) was carried out; after an appropriate polynomial adjustment, the results showed that it is possible to detect displacements of some centimeters considering the phase observations related to single satellite and millimeters if phase differences between satellites were considered.…”

Section: Introductionmentioning

confidence: 99%

Exploiting Performance of Different Low-Cost Sensors for Small Amplitude Oscillatory Motion Monitoring: Preliminary Comparisons in View of Possible Integration

et al. 2016

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We address the problem of low amplitude oscillatory motion detection through different low-cost sensors: a LIS3LV02DQ MEMS accelerometer, a Microsoft Kinect v2 range camera, and a uBlox 6 GPS receiver. Several tests were performed using a one-direction vibrating table with different oscillation frequencies (in the range 1.5-3 Hz) and small challenging amplitudes (0.02 m and 0.03 m). A Mikrotron EoSens high-resolution camera was used to give reference data. A dedicated software tool was developed to retrieve Kinect v2 results. The capabilities of the VADASE algorithm were employed to process uBlox 6 GPS receiver observations. In the investigated time interval (in the order of tens of seconds) the results obtained indicate that displacements were detected with the resolution of fractions of millimeters with MEMS accelerometer and Kinect v2 and few millimeters with uBlox 6. MEMS accelerometer displays the lowest noise but a significant bias, whereas Kinect v2 and uBlox 6 appear more stable. The results suggest the possibility of sensor integration both for indoor (MEMS accelerometer + Kinect v2) and for outdoor (MEMS accelerometer + uBlox 6) applications and seem promising for structural monitoring applications.

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“…Esta pesquisa busca melhorar o limiar de detecção do Global Positioning System (GPS), a partir do MRF, para que possa ser utilizado, também, no monitoramento dinâmico de pontes rígidas de pequeno porte. Até o momento, a aplicação do MRF era concentrada no monitoramento de oscilações de pontes suspensas e estaiadas de médio e grande porte Larocca et al, 2005;Larocca e Schaal, 2010;Larocca et al, 2011;Schaal et al, 2012;Larocca et al, 2013). Este método apresentava como grande desvantagem em 2004, a necessidade de programar o horário de coleta de dados em relação ao horário que apresentasse satélites com elevação maior de 80º, fato que foi mitigado com a introdução de maior número de satélites na constelação do sistema GPS.…”

Section: Introductionunclassified

Uso De Receptores GPS De 100 Hz Na Detecção De Deflexões Verticais Milimétricas De Pontes De Concreto De Pequeno Porte

et al. 2015

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Resumo:As últimas quatro décadas foram importantes para o desenvolvimento da malha rodoviária brasileira. O país recebeu incentivos financeiros para a sua expansão e diversas soluções estruturais para pontes e viadutos foram criadas. Em paralelo a este desenvolvimento, houve nos últimos anos um crescimento significativo dessas estruturas em estágio avançado de deterioração devido à ausência de programas de manutenção preventiva. Dessa maneira, este trabalho propõe o uso de receptores GPS num plano de monitoramento de curta duração para acompanhar o comportamento estrutural de uma ponte rodoviária curva de concreto armado já em serviço. E apresenta os primeiros resultados da pesquisa com a portadora L1 do sistema GPS e dados gravados com taxa de 100 Hz, no monitoramento do vão central de ponte de concreto de pequeno porte situada sobre o Rio Jaguari, na cidade de Extrema, divisa entre os Estados de Minas Gerais e São Paulo. O desafio reside no fato de que estruturas como estas -pontes de concreto de pequeno e médio porte -respondem pela grande maioria das obras de arte da malha rodoviária brasileira e por serem

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Use of a Single L1 GPS Receiver for Monitoring Structures: First Results of the Detection of Millimetric Dynamic Oscillations

Cited by 10 publications

References 12 publications

Global Navigation Satellite System‐based positioning technology for structural health monitoring: a review

Global Navigation Satellite System‐based positioning technology for structural health monitoring: a review

Exploiting Performance of Different Low-Cost Sensors for Small Amplitude Oscillatory Motion Monitoring: Preliminary Comparisons in View of Possible Integration

Uso De Receptores GPS De 100 Hz Na Detecção De Deflexões Verticais Milimétricas De Pontes De Concreto De Pequeno Porte

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