何源

副教授、博导，中国计算机学会物联网专委会委员，IEEE高级会员

Title:​ mmVib: Micrometer-Level Vibration Measurement with mmWave Radar

Abstract: 

Vibration measurement is a crucial task in industrial systems, where vibration characteristics reflect the health and indicate anomalies of the objects. Previous approaches either work in an intrusive manner or fail to capture the micrometer-level vibrations. In this work, we propose mmVib, a practical approach to measure micrometer-level vibrations with mmWave radar. By introducing a Multi-Signal Consolidation (MSC) model to describe the properties of the reflected signals, we exploit the inherent consistency among those signals to accurately recover the vibration characteristics. We implement a prototype of mmVib, and the experiments show that this design achieves 8.2% relative amplitude error and 0.5% relative frequency error in median. Typically, the median amplitude error is 3.4um for the 100um-amplitude vibration. Compared to two existing approaches, mmVib reduces the 80th-percentile amplitude error by 62.9% and 68.9% respectively.

报告人简介：

       何源，副教授、博导，中国计算机学会物联网专委会委员，IEEE高级会员，分别于中国科学技术大学、中国科学院软件研究所、香港科技大学获得工学学士、工学硕士、博士学位。研究工作得到国家自然科学基金、国家重点研发计划重点专项、973计划青年科学家专题等国家科研基金和国家电网、华为、腾讯、西门子、中建集团等企业的共同支持。担任ACM TIOT、JCST等期刊编委，EWSN 2019、DCOSS 2018等国际会议的程序委员会主席，INFOCOM、WWW、SenSys、IPSN、ICDCS、SECON等国际会议程序委员会委员。在JSAC、TON、TMC、TPDS等学术期刊和MobiCom、INFOCOM、SenSys、IPSN、ICNP、RTSS等国际会议上发表论文100余篇，Google Scholar统计论文被引用超过3000次。获得IEEE ICPADS 2010、IEEE ICPADS 2017、IEEE ICII 2018、BIGCOM 2019等国际会议的最佳论文奖，INFOCOM 2016/2017/2019杰出程序委员会委员。