A real-time prototype of a water level monitor and wide area early flood warning


  • Narumon Wannoi
  • Chaisit Wannoi Computer Technology Department, Faculty of Agricultural and Industrial Technology, Phetchabun Rajabhat University, Phetchabun, 67000 Thailand




Real time, Water level monitor, Flood early warning system, Line application


This article presents a real-time prototype of a water level monitor and wide area early flood warning. The prototype consists of two systems: the first is designed to provide real-time display and alarm alerts on a lab view program; the second is designed to measure water levels and display results via applications on a smartphone in real-time using the Blynk application, as well as to alert users of impending floods via the LINE application using Internet of Things (IoT) technology. The target user in this research study is Sado Phong Community, Khao Kho District, Phetchabun Province. This case study was designed for a stream with a water depth of 200 cm and a three-tiered alarm system: 140 cm, 150 cm and 170 cm of water height. The study results showed that when simulating each set level increase, the prototype could display real-time water level changes and give an alarm in both systems. The error value of the meter for the system displayed in the lab view was ± 1.11%. In comparison, the error value for the system displayed via an application on a smartphone for ultrasonic sensor 1 was ± 0.60% and ultrasonic sensor 2 was ± 0.80%, including the ability to notify a group of community members via the LINE application.


J. G. Natividad, J. M. Mendez, Flood Monitoring and Early Warning System Using Ultrasonic Sensor, International Conference on Information Technology and Digital Applications, Yogyakarta, Indonesia. 8 – 9 November 2017, 012020.

W. Indrasari, B.H. Iswanto, M. Andayani, Early Warning System of Flood Disaster Based on Ultrasonic Sensors and Wireless Technology, IOP Conf. Series: Materials Science and Engineering, Padang, West Sumatera, Indonesia. 25 April 2018, 1 – 7.

R. Sujono, H.A. Sulistyowati, A.K. Musthofa, Design and Field Test Equipment of River Water Level Detection Based on Ultrasonic Sensor and SMSGateway as Flood Early Warning, The 3rd International Conference on Engineering, Technology, and Industrial Application, Surakarta, Indonesia. 15 June 2017, 1 – 7.

S. Banakar, K. Sree Vani, K.Y. Shruthi, G. Rajini, Flood Monitoring System with SMS Notification, JETIR. 6 (2019) 383 – 386.

P. Kongtongnok, P. Jomsri, Monitoring and Alert System for Using Computer Laboratory via LINE Application, The 2019 International Academic Research Conference in Amsterdam, Amsterdam, Netherlands. 8 – 10 May 2019, 140 – 144.

N. Srirajun, P. Vantavee, The Development of Theft Notification System with Vibration Sensor on Internet of Things Technology, VESTSU. 6 (2019) 30 – 44.

A. Charles, C. Ayylusamy, J. Deepak Raj, K. Keerthi, T. KE. Thiruvarasan, IOT Based Water Level Monitoring System Using LabVIEW, IJPAM. 118 (2018) 9 – 14.

A. Venkateswara Rao, C. Drakshayini, R.N. Kumar, K. Abhishek, G. Sharmila, M.S. Sai, LabVIEW Based Flood Monitoring System, MSJ. 9 (2020) 254 – 260.

N. Gunantara, P.K. Sudiarta, A.A.I. Prasetya, A. Dharma, I. N.G. Antara, Measurements of the Received Signal Level and Service Coverage Area at the IEEE 802.11 Access Point in the Building, J. Phys.: Conf. Ser. 989 (2018) 1 – 8.

S. Dolha, P. Negirla, F. Alexa, I, Silea, Considerations about the Signal Level Measurement in Wireless Sensor Networks for Node Position Estimation, MDPI. 19 (2019) 1 – 20.

M. Ahmed, H.S. Taha, A. Saaid, M. Tarek UGUENIN, A Real Time Control System Simulation Model Based on LabVIEW Graphical Programming Language, IJERT. 7 (2018) 277 – 282.




How to Cite

Wannoi, N., & Wannoi, C. (2021). A real-time prototype of a water level monitor and wide area early flood warning. Creative Science, 14(1), 19–24. https://doi.org/10.55674/snrujst.v14i1.244485