Development of an IoT-Based Real-Time Flood Monitoring and Alert System UsingGSM-Based SMSin Santo Tomas
Keywords:
Flood Monitoring, GSM / SMS, Water Level Sensor, Real-Time SystemAbstract
ABSTRACT
Flooding is a recurring environmental hazard that can affect communities, properties,
transportation, and public safety, particularly in areas experiencing heavy rainfall and changes in
water levels. One challenge during flooding is the lack of timely and localized information that
can help residents become aware of increasing water levels. This study proposes the
development of an Internet of Things (IoT)-based real-time flood monitoring and alert system
using GSM-based Short Message Service (SMS) for Santo Tomas. The system is designed to
continuously monitor water levels through a water-level sensor connected to a microcontroller.
Measurements will be processed and compared with site-calibrated threshold levels to determine
the corresponding flood condition. When a predefined warning threshold is reached, the system
will automatically send an SMS notification to designated recipients through a GSM
communication module.
The study will employ a descriptive-developmental research design with a quantitative
evaluation component. The development process will include system requirements identification,
site assessment, stakeholder consultation, system design, hardware and software integration,
prototype development, testing, and evaluation. System performance will be evaluated based on
water-level measurement accuracy, consistency of readings, alert-triggering accuracy, SMS
delivery, response time, reliability, and selected software and system quality characteristics. Repeated testing will determine whether the system can consistently detect changes in water
levels and provide appropriate notifications based on established thresholds.
The proposed system will serve as a localized supplementary monitoring and notification
tool and will not replace official weather forecasts, flood warnings, or government emergency
response systems. Expected outputs include a functional prototype, calibrated thresholds,
evaluation results, and recommendations for improvement and future deployment
References
REFERENCES
Zakaria, M. I., Jabbar, W. A., & Sulaiman, N. (2023). Development of a smart sensing unit for
LoRaWAN-based IoT flood monitoring and warning system in catchment areas. Internet of
Things and Cyber-Physical Systems, 3, 249-261.
https://www.sciencedirect.com/science/article/pii/S2667345223000263
Ma’Ti, M. A. N. B., Isa, R. M., Kasran, F. A. M., Hassan, S. L. M., Zakaria, W. N. W., & Ismadi,
M. H. N. M. (2025, August). Smart IoT-based flood detection and alert system with real
time data logging. In 2025 IEEE 16th Control and System Graduate Research Colloquium
(ICSGRC) (pp. 7-12). IEEE.
https://ieeexplore.ieee.org/abstract/document/11159736?fbclid=IwY2xjawT5J9lwZG9mBWV4d
G4DYWVtAjEwAGJyaWQRMXJqSDVuSzFlbHZvbG5qUnJzcnRjBmFwcF9pZBAyMjIwMzk
xNzg4MjAwODkyAAEeZkjQyi32gsaUPD5vqyoCbx6UY3ad4EwB03Y8lc
1XjvksxEwWmFUmciu3-o_aem_z1CHC_Rc3l3G1I1DAombcw Pramono, N. A., Purwandani, B. A., Ghaisyani, O., Mallisa, F. P. P., & Sofyan, F. I. (2023, May).
Development a prototype of river water level monitoring system using ESP32 based on
internet of things for flood mitigation. In Journal of Physics: Conference Series (Vol. 2498,
No. 1, p. 012039). IOP Publishing.
https://iopscience.iop.org/article/10.1088/1742-6596/2498/1/012039
Curumtally, F., & Khoodeeram, R. (2021, May). Real time flood monitoring and prevention
using IoT sensors in developing countries. In 2021 IST-Africa Conference (IST-Africa)
(pp. 1-9). IEEE.
https://ieeexplore.ieee.org/abstract/document/9577002/
Wannoi, N., & Wannoi, C. (2022). A real-time prototype of a water level monitor and wide area
early flood warning. Creative Science, 14(1), 19-24.
https://ph01.tci-thaijo.org/index.php/snru_journal/article/download/244485/168101/877019
Okeke, R. O. Design Analysis of an IoT based Early Flood Detection and Alerting System.
https://www.academia.edu/download/111903937/IJAERS_07_february_2024.pdf
Suryagan, A. A., Nemte, A. L., Thorat, K. D., & Khadake, S. B. (2025). IoT Based Flood
Monitoring System by using Thing Speak Cloud. No publication details–needs clarification
https://www.researchgate.net/profile/Suhas
Khadake/publication/391857598_IoT_Based_Flood_Monitoring_System_by_using_Thing_Spea
k_Cloud/links/682ab2ad6b5a287c30426f66/IoT-Based-Flood-Monitoring-System-by-using
Thing-Speak-Cloud.pdf
Sihombing, J., Jaenul, A., Wilyanti, S., & Putri, N. (2022). Prototype of Drainage Water Level
Monitoring System Using Internet of Things (IoT) Based Web. SMARTICS Journal, 8(2),
52-58. https://ejournal.unikama.ac.id/index.php/jst/article/view/7559
Anggreani, A. D., & Setiadi, D. (2026). PROTOTYPE PERINGATAN DINI DAN MITIGASI
BANJIR BERBASIS IOT PADA RUKO DENGAN NOTIFIKASI PENGHALANG AIR
OTOMATIS DAN POMPA AIR. MULTEKS (Multidisiplin Teknologi & Sosial), 1, 234
243.
https://multeks.pppmitpa.or.id/index.php/semnas/article/view/51
Yultrisna, Fitriyan, R., Anggraini, T., Antonisfia, Y., & Wardhani, A. (2025, February). Design
of monitoring and flood early warning systems in homes based on IoT. In AIP Conference
Proceedings
(Vol.
3281,
No. 1, p. 020006). AIP Publishing LLC.
https://pubs.aip.org/aip/acp/article-abstract/3281/1/020006/3336608
Suryagan, A. A., Nemte, A. L., Thorat, K. D., & Khadake, S. B. (2025). IoT based flood
monitoring
system
by
using
ThingSpeak
cloud.
ResearchGate.
https://www.researchgate.net/profile/SuhasKhadake/publication/391857598_IoT_Based_Fl
ood_Monitoring_System_by_using_Thing_Speak_Cloud/links/682ab2ad6b5a287c30426f6
6/IoT-Based-Flood-Monitoring-System-by-using-Thing-Speak-Cloud.pdf
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Copyright (c) 2026 Zyrus Fernandez, Vincent Sambile, Dexter Benzula, Dennis William Nicdao, Jam Cedric Ampuan (Author)
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