Technology for Hydrologic Data Acquisition and Monitoring

1. Technology for Hydrologic Data Acquisition and Monitoring 2003. 8. 27 Jongkook Lee, Ph.D DataPCS, Korea

2. Introduction • What is the technology for hydrologic data acquisition and monitoring? • Motivation (1997) • Seohae Grand bridge realtime scour monitoring • Goal • Wireless realtime hydrologic monitoring technology development for a researcher level

3. Introduction • Other interested areas • Realtime hydrologic watershed monitoring • Realtime disaster prevention monitoring • Coastal / river / natural environment monitoring • Realtime SOC monitoring and control

4. Feature I • What is the difference compared with the regular methods (phone to phone or dedicated wire connection) ? • Wireless Internet • Perfect glue service of PCS wireless network + High speed wired internet

5. Feature II • Synchronized realtime data acquisition from multiple services • Old dedicated wireless telemetering (VHF) • Each node 1 sec took • 250 nodes 250 secs took ≒ 4 mins 10 secs • Wireless Internet telemetering (PCS) • Each node 5∼10 secs took • 250 nodes 5∼10 secs took

6. Feature III • Nearly realtime services possible • Server size • Small enough fit in a desk top • Hassle-free (network service : commercial) • User only care • Remote data logging systems • A server

7. Feature IV • It goes everywhere you want to be. • It moves anytime you want to do. • It glues anydevice you want to keep.

8. Feature V • Remote sensing ground proof for calibration

9. Demonstration I • Hydrologic realtime monitoring • Realtime rainfall measurement • Realtime water level measurement • Realtime water quality measurement • Realtime AWS • Realtime evaporation, soil moisture measurement • Realtime wireless watershed webcam • Wireless Internet + PDA + WEB

10. Demonstration II • A compact wireless internet realtime datalogger • DP100 + Water level sensor (Frontier project) DP100 Water level sensor

11. Demonstration III • Realtime coastal observation network • From Ssangjungcho light tower deck at Ullungdo • Observation station • More than 30 realtime observational parameters • Wave and Tide measurement • AWS measurement • Coastal water environmental measurement • Lantern operation measurement

12. 감사합니다. Thank you.

13. Introduction

14. Introduction

15. Introduction

18. Realtime experimental watershed monitoring (KICT, Korea Institute of Construction Technology, 2002 ∼Present) Realtime monitoring through PDA

19. Realtime monitoring through WEB