Railway safety monitoring algorithm based on distributed optical fiber vibration sensor
Aiming at the monitoring problem of the human climbing behaviour existing along the railway,a railway safety detection algorithm based on distributed optical fiber vibration sensors was proposed by combining the distributed optical fiber sensing technology and signal analysis technology.The surround...
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| Format: | Article |
| Language: | zho |
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China InfoCom Media Group
2020-09-01
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| Series: | 物联网学报 |
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| Online Access: | http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2020.00173/ |
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| _version_ | 1841531205458067456 |
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| author | Fuyang CHEN Bin JIANG Yu SHA |
| author_facet | Fuyang CHEN Bin JIANG Yu SHA |
| author_sort | Fuyang CHEN |
| collection | DOAJ |
| description | Aiming at the monitoring problem of the human climbing behaviour existing along the railway,a railway safety detection algorithm based on distributed optical fiber vibration sensors was proposed by combining the distributed optical fiber sensing technology and signal analysis technology.The surrounding vibration was sensed and transmitted through the optical cables laid along the fence network of the railway,and then the Internet of things (IoT) connection between the railway and monitoring algorithm was built to realize the intelligent monitoring of the climbing behavior.In view of the complicated surrounding environment of the railway and more interference,the Hamming window and wavelet threshold denoising method were used to filter the signal of each frame to improve the signal-to-noise ratio of the vibration signal.In the selection of features,the power spectrum and short-time over-level rate of the signal were extracted from the time domain and frequency domain respectively as a joint feature to determine whether there was climbing or creeping behavior.Since that the climbing behavior was spatially continuous,the minimum alarm range was set to filter out alarms with a too small range,which improved the accuracy of the monitoring system. |
| format | Article |
| id | doaj-art-d6f00ef4a63c4375965f661f3ae37e84 |
| institution | Kabale University |
| issn | 2096-3750 |
| language | zho |
| publishDate | 2020-09-01 |
| publisher | China InfoCom Media Group |
| record_format | Article |
| series | 物联网学报 |
| spelling | doaj-art-d6f00ef4a63c4375965f661f3ae37e842025-01-15T02:52:59ZzhoChina InfoCom Media Group物联网学报2096-37502020-09-01410611159646177Railway safety monitoring algorithm based on distributed optical fiber vibration sensorFuyang CHENBin JIANGYu SHAAiming at the monitoring problem of the human climbing behaviour existing along the railway,a railway safety detection algorithm based on distributed optical fiber vibration sensors was proposed by combining the distributed optical fiber sensing technology and signal analysis technology.The surrounding vibration was sensed and transmitted through the optical cables laid along the fence network of the railway,and then the Internet of things (IoT) connection between the railway and monitoring algorithm was built to realize the intelligent monitoring of the climbing behavior.In view of the complicated surrounding environment of the railway and more interference,the Hamming window and wavelet threshold denoising method were used to filter the signal of each frame to improve the signal-to-noise ratio of the vibration signal.In the selection of features,the power spectrum and short-time over-level rate of the signal were extracted from the time domain and frequency domain respectively as a joint feature to determine whether there was climbing or creeping behavior.Since that the climbing behavior was spatially continuous,the minimum alarm range was set to filter out alarms with a too small range,which improved the accuracy of the monitoring system.http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2020.00173/distributed optical fiber vibration sensoralong the railwaysignal processingintrusioninternet of things |
| spellingShingle | Fuyang CHEN Bin JIANG Yu SHA Railway safety monitoring algorithm based on distributed optical fiber vibration sensor 物联网学报 distributed optical fiber vibration sensor along the railway signal processing intrusion internet of things |
| title | Railway safety monitoring algorithm based on distributed optical fiber vibration sensor |
| title_full | Railway safety monitoring algorithm based on distributed optical fiber vibration sensor |
| title_fullStr | Railway safety monitoring algorithm based on distributed optical fiber vibration sensor |
| title_full_unstemmed | Railway safety monitoring algorithm based on distributed optical fiber vibration sensor |
| title_short | Railway safety monitoring algorithm based on distributed optical fiber vibration sensor |
| title_sort | railway safety monitoring algorithm based on distributed optical fiber vibration sensor |
| topic | distributed optical fiber vibration sensor along the railway signal processing intrusion internet of things |
| url | http://www.wlwxb.com.cn/zh/article/doi/10.11959/j.issn.2096-3750.2020.00173/ |
| work_keys_str_mv | AT fuyangchen railwaysafetymonitoringalgorithmbasedondistributedopticalfibervibrationsensor AT binjiang railwaysafetymonitoringalgorithmbasedondistributedopticalfibervibrationsensor AT yusha railwaysafetymonitoringalgorithmbasedondistributedopticalfibervibrationsensor |