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--- Timezone: UTC
Creation date: 2024-12-05
Creation time: 19-53-32
--- Number of references
3
article
2014-cheng-acta-geodyn-geomater
Use of MEMS accelerometers/inclinometers as a geotechnical monitoring method for ground subsidence
Acta Geodynamica et Geomaterialia
2014
10
8
11
4
1--12
Accelerometer and inclinometer are inertial sensors capable of measuring corresponding magnitude of Earth gravitational field along the direction of each axis. By means of rotation matrices related to inertial navigation methods, the output values of a three-dimensional accelerometer or a two-dimensional inclinometer can be transformed and processed into the azimuth and dip angle of the monitored target. With the rapid growth in development and cost reduction of Micro Electro Mechanical Systems (MEMS) and Wireless Sensor Network (WSN) in recent years, the engineers are able to carry out real-time wireless geotechnical monitoring during construction. In this paper, we set up a one-day measurement implemented by a self- developed wireless MEMS monitoring system on the surface in the construction site of South Hongmei Road super high way tunnel in Shanghai, by making use of rotation matrices in specific ways, the raw data are processed to expressions of three-dimensional normal vectors that represent the change of the ground. After unifying the vectors in the same coordinate system, we conduct a brief ground settlement analysis by means of an evaluation of the dip angles in the cross section and the azimuths of the sensor nodes.
http://www.irsm.cas.cz/index_en.php?page=acta_detail_doi&id=96
Online
Institute of Rock Structure and Mechanics of the ASCR, v.v.i.
Prague, Czech Republic
Online
en
2336-4351
10.13168/AGG.2014.0015
1
ChengLi
TomásFernández-Steeger
Jó AgilaBitsch Link
MatthiasMay
RafigAzzam
inproceedings
2014-mass-wirtz-mafi
High-performance, Energy-efficient Mobile Wireless Networking in 802.11 Infrastructure Mode
2014
10
fileadmin/papers/2014/2014-wirtz-mass-mafi.pdf
Online
IEEE Computer Society
Proceedings of The 11th IEEE International Conference on Mobile Ad-hoc and Sensor Systems (IEEE MASS 2014), Philadelphia, PA, USA
Philadelphia, USA
11th IEEE International Conference on Mobile Ad-hoc and Sensor Systems (IEEE MASS 2014)
27 - 30 October 2014
en
978-1-4799-6035-4
10.1109/MASS.2014.21
1
HannoWirtz
GeorgKunz
JohannesLaudenberg
RobertBackhaus
KlausWehrle
proceedings
2014-kuvs-zimmermann-mindgap
Mind the Gap – Understanding the Traffic Gap when Switching Communication Protocols
2014
9
29
Stuttgart
1st KuVS Workshop on Anticipatory Networks
September 29-30, 2014
1
MarcWerner
TobiasLange
MatthiasHollick
TorstenZimmermann
KlausWehrle