Fire-Fighting Robot with Thermal Image Detection

Problem statement

Fire accidents in industrial and residential buildings pose severe risks to firefighters. Detecting hotspots early and extinguishing small fires can prevent disasters. A robot that can detect fire using thermal imaging and navigate autonomously can significantly enhance safety.

Abstract

This robot uses a FLIR thermal camera to detect abnormal heat signatures in real time. Using thresholding and blob detection, the robot identifies potential fire hotspots. It navigates toward the source and activates a mini fire-extinguishing system such as CO₂ spray or water mist. A wireless alert is also sent to the control station.

Components required

• FLIR Lepton Thermal Camera
• ESP32 / Raspberry Pi
• Motor Driver
• Fire Extinguisher Module (Pump/Solenoid)
• Chassis and Motors

Block diagram

Working

The thermal camera identifies hotspots above a threshold. The robot's navigation module computes a movement path. Upon reaching the hotspot, it activates the extinguisher and simultaneously sends an alert to the user. This enables unmanned early-stage fire response.

Applications

• Warehouses
• Chemical industries
• Household fire prevention
• Automated firefighting systems