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Sohn, Hoon

2-2-2 Project Director

Project : Development of a self-sufficient wireless sensor node for structural monitoring
Purpose In this research, a novel self-sufficient wireless sensor node is developed. This sensor node automatically detects early fatigue cracks in real-time, and semi-permanently operates without battery replacement by using harvested energy.
Contents [Wireless sensor node for automated fatigue crack detection]
- Low-power implementation of the nonlinear ultrasonic based automated fatigue crack detection algorithm
- User-friendly and low-power wireless data transmission algorithm
-Wireless sensor node minimization using optimized component/design
[Low-frequency vibration energy based power supply module]
- Development and minimization of the electromagnetic based vibration energy harvester
- High efficient battery charging circuit
[Performance validation and commercialization]
- Performance validation on various real structures
- Application and commercialization to various real structures
Expected Contribution - Securement of source technology for structural monitoring
- Prevention of catastrophic disasters and satisfaction of the social demand to
safety
Publication
No Title Year Phase
3 Binding conditions for nonlinear ultrasonic generation unifying wave propagation and vibration 2014.07 Phase 2
1st year
2 Reference-free fatigue crack detection using nonlinear wave modulation 2014.04 Phase 2
1st year
1 Nonlinear ultrasonic wave modulation for fatigue crack detection 2014.02. Phase 2
1st year
1
Patent
No Title Country Date Phase
1 비선형 초음파 모듈레이션 기법을 이용한 구조물의 무선 진단장치 및 그를 이용한 안전진단 방법 KR 2014-06-26 Phase 2
1st year
1
Conference
No title Conference Name Date Phase
2 Noncontact Laser Sensing Technology for Structural Health Monitoring and Nondestructive Testing 6th World Conference on Structural Control and Monitoring 2014-07-15 Phase 2
1st year
1 RF based Wireless Power Transmission System for Structural Health Monitoring Sensors 2014년도 한국통신학회 하계종합학술발표회 2014-06-25 Phase 2
1st year
1
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