In view of the fixed sampling rate setting, the problems of under sampling and over sampling in the default sampling mode of Android smartphone sensors are discussed in this paper, and a smartphone sensor signal acquisition software with a custom sampling rate and sampling precision is developed, which can synchronously record the data of the sampling epoch, the time interval and the sensor values. Then, both two power spectrum analysis methods and two displacement signal reconstruction methods of analog acceleration signals are compared and analyzed, and the results show that the L-S method and the frequency-domain integral method can effectively process the non-uniform sampling signal of smartphone sensors with noise. At the end, the acceleration signals of Xuzhou Han Bridge are collected from both smartphones (NX 5 and Mi 3) and a high precision inertial integrated navigation system (SPAN-IGM-A1) used for comparison experiments, and the bridge vibration detection and analysis results verify that the portable and low-cost Android smartphone can be used to conduct the bridge vibration detection.
LIU Zhiping
,
ZHU Dantong
,
YANG Lei
,
YANG Dingliang
. Experiments on bridge vibration detection using Android smartphone sensors[J]. Science & Technology Review, 2017
, 35(10)
: 80
-86
.
DOI: 10.3981/j.issn.1000-7857.2017.10.011
[1] 刘志平, 余前勇. 多传感器融合的手机室内三维定位试验[J]. 山东科技大学学报(自然科学版), 2015, 34(6):90-95. Liu Zhiping, Yu Qianyong. Experiments on 3D indoor localization of smart phones[J]. Journal of Shandong University of Science and Tech-nology (Natural Science), 2015, 34(6):90-95.
[2] Shoaib M, Bosch S, Incel O D, et al. A survey of online activity recogni-tion using mobile phones[J]. Sensors, 2015, 15(1):2059.
[3] 陈龙彪, 李石坚, 潘纲. 智能手机:普适感知与应用[J]. 计算机学报, 2015, 38(2):423-438. Chen Longbiao, Li Shijian, Pan Gang. Smartphone:Pervasive sensing and applications[J]. Chinese Journal of Computers, 2015, 38(2):423-438.
[4] 郑旭锋, 肖沙里, 谭霞, 等. 压电传感技术在桥梁振动检测中的研究与应用[J]. 压电与声光, 2003, 25(1):72-74. Zheng Xufeng, Xiao Shali, Tan Xia, el al. Research and application of piezoelectric bridge vibration detection[J]. Piezoelectrics & Acoustoop-tics, 2003, 25(1):72-74.
[5] 乔燕, 孙传智, 缪长青. 基于GPS的大跨悬索桥动态特性监测及分析[J]. 测绘通报, 2012(3):1-4. Qiao Yan, Sun Chuanzhi, Miao Changqing. Monitoring dynamic charac-teristics of long-span suspension bridge based on GPS technology[J]. Bulletin of Surveying and Mapping, 2012(3):1-4.
[6] 李洪升, 陶恒亮, 郭杏林. 基于频率变化平方比的压力管道损伤定位方法[J]. 大连理工大学学报, 2002, 42(4):400-403. Li Hong, Tao Hengliang, Guo Xinglin. Damage locating method in stress ducting by frequency change square ratio[J]. Journal of Dalian University Of Technology, 2002, 42(4):400-403.
[7] 朱文龙, 周建中, 肖剑, 等. 独立分量分析-经验模态分解特性提取在水电机组振动信号中的应用[J]. 中国电机工程学报, 2013, 33(29):95-101. Zhu Wenlong, Zhou Jianzhong, Xiao Jian, et al. An ICA-EMD feature extraction method and its application to vibration signals of hydroelec-tric generating units[J]. Proceedings of the CSEE, 2013, 33(29):95-101.
[8] 袁扬, 刘维宁, 王文斌. 地铁交通引起环境振动传递特性试验研究[J]. 铁道学报, 2014, 36(4):100-104. Yuan Yang, Liu Weining, Wang Wenbin. Experiments on environmen-tal vibration propagation characteristics induced by metro traffic[J]. Journal of the China Railway Society, 2014, 36(4):100-104.
[9] 李舜酩, 郭海东, 李殿荣. 振动信号处理方法综述[J]. 仪器仪表学报, 2013, 34(8):1908-1915. Li Shunming, Guo Haidong, Li Dianrong. Review of vibration signal pro-cessing methods[J]. Chinese Journal of Scientific Instrument, 2013, 34(8):1908-1915.
[10] 王济. MATLAB在振动信号处理中的应用[M]. 北京:知识产权出版社, 2006. Wang Ji. Application of MATLAB in vibration signal processing[M]. Beijing:Intellectual Property Publishing House, 2006.
[11] 李神送, 温嘉铭, 刘学锋. Android手机上传感器信息的实时获取与可视化[J]. 电子测量技术, 2015(6):104-107. Li Shensong, Wen Jiaming, Liu Xuefeng. Real-time access and visual-ization of sensor information on Android phone[J]. Electronic Measure-ment Technology, 2015(6):104-107.
[12] Scargle J D. Studies in astronomical time series analysis. Ⅱ. statistical aspect of spectral analysis of unevenly spaced data[J]. Astrophysical Journal, 1983, 263(2):835-853.
[13] 徐斌, 杨涛, 谭保华, 等. 基于Lomb-Scargle算法的周期信号探测的模拟研究[J]. 核电子学与探测技术, 2011, 31(6):702-705. Xu Bin, Yang Tao, Tan Baohua, et al. The simulate study of signal de-tection based on Lomb-Scargle algorithm[J]. Nuclear Electronics & Detection Technology, 2011, 31(6):702-705.
[14] 陈为真, 汪秉文, 胡晓娅. 基于时域积分的加速度信号处理[J]. 华中科技大学学报(自然科学版), 2010, 38(1):1-4. Chen Weizhen, Wang Bingwen, Hu Xiaoya. Acceleration signal pro-cessing by aumerical integration[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2010, 38(1):1-4.
[15] 方新磊, 郝伟, 陈宏. 基于频域滤波的加速度信号处理[J]. 仪表技术与传感器, 2012(4):94-96. Fang Xinlei, Hao Wei, Chen Hong. Acceleration signal processing based on frequency domain filtering[J]. Instrument Technique and Sen-sor, 2012(4):94-96.
