This file was created by the TYPO3 extension bib --- Timezone: CEST Creation date: 2024-04-24 Creation time: 20-22-27 --- Number of references 3 article 2014-cheng-acta-geodyn-geomater 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 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 2014 9 29 Stuttgart 1st KuVS Workshop on Anticipatory Networks September 29-30, 2014 1 MarcWerner TobiasLange MatthiasHollick TorstenZimmermann KlausWehrle