A Wireless controlled semi-autonomous fire extinguishing robot to rescue and monitor hazardous
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This thesis work covers the design and construction of a very contemporary advantageous electro-mechanical arrangement for fire extinguishing purpose that is an intelligent robotic system which is basically used to move through any complex maze of any building or industry where fire is swept everywhere, for the visual detection of fire in the floor of any building, for wireless transmission of data to parent server and to extinguish the fire by the manual command or run in fully autonomous mode according to the command from the base station. The proposed robot is controlled using a high power 2.4GHz ISM band radio frequency based NRF24L01+PA+LNA technology covering 1km range outdoor. The entire structure of the fire extinguishing robot was built to survive the machine in extreme heat of fire which was certainly a challenging ingredient of our research by selection of appropriate material for designing framework of the system. This multipurpose robot was used to extinguish fire which is generally occurred by indifference of inhabitants or sudden accident or unanticipated electric spark in any industry or garments as well. The proposed fire extinguisher robotic system is able to go through any difficult place by overcoming tremendous heat created by fire in any industry or fired house and efficiently transmit the video stream through setting up an automatically wireless communication between robot’s microprocessor and control panels’ common server. A unique RF channel is dedicated to control the robot to avoid any third party involvement into server. Therefore the proposed mechatronics for our robot, which is the sole combination of Electronics and Mechanical Engineering, can be divided in to 2 basic parts to explain the whole work easily i.e. one is Control system of a Robot by Electronic Pulse technique from a remote place and another is a Mechanically Controlling System to extinguish fire where the mechanical part consists of cylinder for fire extinguishing material like dry ice spraying mechanism. The proposed system’s one of the parts could be used to control by observing wireless video transmission in a Graphical User Interface software for any other highly security purpose. To extinguish fire, high quality dry ice is used and mechanical structure is designed using computer aided drawing (CAD). For the electronics segment, a micro controller board named Arduino is used with the corresponding firmware loaded into it. Moreover, a highly efficient fire tolerant material is used to build the body structure of whole robot in order to ensure the performance as an immaculate fire extinguisher to save humans and other valuable properties. Lastly, the experimental analysis and real life implementation of the robot is depicted all the way through work.