標題: Model the Vibrations of Rack-mounted On-vehicle Devices by Underdamped Oscillations
作者: Chuang, Yi-Ta
Yi, Chih-Wei
Wu, Tsung-Hsiang
Chan, Ching-Yao
資訊工程學系
Department of Computer Science
公開日期: 1-Jan-2014
摘要: Recently, rack-mounted devices such as smartphones were proposed to be installed on vehicles as the sensing source to detect road surface conditions by measuring the vibrations of the vehicles. However, due to lack of models, most proposed solutions need individual sensing system tuning or training based on extensive experiments to capture overall system characteristics and usually the outcomes can\'t be applied to other systems due to various factors, e.g., the suspension systems of vehicles, the mounting racks or adhering methods, the weight of the onboard device, and even the position on the vehicle. It becomes an obstacle for pervasive deployment of such systems. In this work, we intend to verify the feasibility of modeling vibrations measured by onboard devices by under-damped oscillation model (UOM) through time and frequency domain analyses. If the vibrations of the phone can be modeled by UOM, the measurement uncertainties caused by various factors that affect the sensed vibrations may potentially be eliminated. The vibrations caused by road anomalies could be measured in a relative objective way by the ratio of the vibration caused by road anomalies and the background vibrations. Our experimental results suggest that it is acceptabl to model the vibrations of onboard devices by the UOM.
URI: http://hdl.handle.net/11536/128540
ISBN: 978-1-4799-6078-1
ISSN: 
期刊: 2014 IEEE 17TH INTERNATIONAL CONFERENCE ON INTELLIGENT TRANSPORTATION SYSTEMS (ITSC)
起始頁: 982
結束頁: 987
Appears in Collections:Conferences Paper