Firefighter Robot: A Low-Cost RC-Based Remote-Controlled Fire Suppression System Using Relay-Triggered Digital Switching Logic

  • Unique Paper ID: 199113
  • Volume: 12
  • Issue: 11
  • PageNo: 12518-12525
  • Abstract:
  • Fire safety is one of those problems that never really goes away. Across homes, factories, and institutions alike, the risk of fire remains constant — and the cost when things go wrong, measured in lives and property, is staggering. This paper describes a Firefighter Robot we built: a remote-controlled system that can drive toward a small fire and put it out using a relay-triggered water jet. It's not autonomous, it doesn't need a microcontroller, and it doesn't require a single line of code. That's deliberate. The build centers on a standard RC car chassis fitted with a mini DC submersible pump (rated 3V–6V), a 5V single-channel relay module, a cut-down plastic bottle as the water tank, and a pen-refill nozzle that turns a trickle into a focused jet. When the user hits the trigger on the remote, the RC receiver sends a 5V HIGH signal, the relay closes, and water fires through the nozzle. Release the button and everything stops. It's a textbook Input–Process–Output loop — except it's real hardware, not a flowchart on a whiteboard. Total component cost came to under Rs. 300. In testing, the system reliably extinguished candle flames from 35 to 60 cm away. The logical next step — adding an Arduino Uno and an IR flame sensor — would make the whole thing autonomous, but that's future work.

Copyright & License

Copyright © 2026 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{199113,
        author = {Saima Z Ansari and Sana Iqbal and Shaufin Pathan and Snigddha Manwatkar},
        title = {Firefighter Robot: A Low-Cost RC-Based Remote-Controlled Fire Suppression System Using Relay-Triggered Digital Switching Logic},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {11},
        pages = {12518-12525},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=199113},
        abstract = {Fire safety is one of those problems that never really goes away. Across homes, factories, and institutions alike, the risk of fire remains constant — and the cost when things go wrong, measured in lives and property, is staggering. This paper describes a Firefighter Robot we built: a remote-controlled system that can drive toward a small fire and put it out using a relay-triggered water jet. It's not autonomous, it doesn't need a microcontroller, and it doesn't require a single line of code. That's deliberate.
The build centers on a standard RC car chassis fitted with a mini DC submersible pump (rated 3V–6V), a 5V single-channel relay module, a cut-down plastic bottle as the water tank, and a pen-refill nozzle that turns a trickle into a focused jet. When the user hits the trigger on the remote, the RC receiver sends a 5V HIGH signal, the relay closes, and water fires through the nozzle. Release the button and everything stops. It's a textbook Input–Process–Output loop — except it's real hardware, not a flowchart on a whiteboard.
Total component cost came to under Rs. 300. In testing, the system reliably extinguished candle flames from 35 to 60 cm away. The logical next step — adding an Arduino Uno and an IR flame sensor — would make the whole thing autonomous, but that's future work.},
        keywords = {Firefighter Robot, RC Car, Relay Module, DC Water Pump, Digital Switching, IPO Model, Fire Suppression, Embedded Systems},
        month = {April},
        }

Cite This Article

Ansari, S. Z., & Iqbal, S., & Pathan, S., & Manwatkar, S. (2026). Firefighter Robot: A Low-Cost RC-Based Remote-Controlled Fire Suppression System Using Relay-Triggered Digital Switching Logic. International Journal of Innovative Research in Technology (IJIRT), 12(11), 12518–12525.

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