The wireless sensor prototype was developed and the field test result, natural frequencies of each mode in stay-cable, showed 0.5% difference compared to the wired sensor. Also, the cable tension derived by the vibration method was 1.177% difference. As a sensor for managing cable tension, the applicability to bridges was confirmed. In the next study, LoRa LPWAN technology will be applied to various sensors used in structures.

• 박원주(한국시설안전공단 국가시설관리본부) | Park Won-Joo
• 하동수(한국시설안전공단 국가시설관리본부) | Ha Dong-Soo
• 양기재(한국시설안전공단 국가시설관리본부) | Yang Ki-Jae
• 박시현(한국시설안전공단 국가시설관리본부) | Park Si-Hyun
• 장범수(한국시설안전공단 국가시설관리본부) | Chang Buhm-Soo