Resumen

PANDEY, Anish et al. Design and analysis of all-terrain differential-driven caterpillar-wheeled based unmanned fire extinguisher robot. J. appl. res. technol [online]. 2022, vol.20, n.5, pp.529-535.  Epub 31-Jul-2023. ISSN 2448-6736.  https://doi.org/10.22201/icat.24486736e.2022.20.5.1389.

The usage of wheeled robots in service robots such as planetary exploration robots, pick-and- place robots, cleaning robots, surveillance robots, etc., is continuously increasing day by day. The primary purpose of these service robots is to reduce human resources and minimize life risk of human in a hazardous environment. Therefore, in this article, the authors propose and design the all-terrain differential-driven caterpillar-wheeled based unmanned Fire Extinguisher Robot (FER), which can detect and monitor fire by using a gas (smoke) sensor and temperature sensor. Also, it can extinguish the fire by spreading the fire extinguisher gas. The proposed unmanned FER has been divided into two assembled units, one unit drives the FER, and the other is for spreading the fire extinguisher gas through the nozzle of the cylinder. The driving unit of unmanned FER consists of six DC geared motors, two dual DC motor drivers, caterpillar driving wheels, Arduino MEGA microcontroller, Bluetooth module, gas sensor, temperature sensor, and rechargeable lithium-polymer (LiPo) battery. Besides, one DC motor connected with a motor driver controls the fire extinguisher gas cylinder's opening and closure valve through a Bluetooth signal from an android phone. The specially designed chassis and caterpillar driving wheel arrangement help the FER to travel in any terrain, including stair climbing. Furthermore, the other advantage of this unmanned FER is that it can extinguish the fire from a distance of more than 200 cm by spreading the fire extinguisher gas through the nozzle of the cylinder. Real-time experimental tests have been carried out on the designed unmanned FER during the fire extinguishing process to prove the effectiveness of the developed FER.

Palabras llave : Wheeled robot; service robot; unmanned fire extinguisher robot; gas sensor; temperature sensor; caterpillar driving wheel.

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