Kazi Ragib Ishraq Sanim

The project was supervised by Assistant Professor Dr. Sadia Sharmin and was funded by the ICT division of the government of Bangladesh. The motivation was to build a remote-controlled vehicle that is packed with different sensor packages, a video camera, and a microphone. It could be sent to a disaster site to feed the environmental data and audio and video feed wirelessly from inside the rubble. I was in charge of the electromechanical and communication part of this project.

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Since the body had to be small, I designed an Arduino shield using Proteus for accommodating all the sensors right on top of the Arduino UNO which was the main microprocessor of the robot. The shield also had a power circuit to supply power to the sensor packages, the Arduino, the headlight, and the AV transmitter. The sensor packages included a gas sensor to measure air quality, a barometric sensor to determine altitude by measuring atmospheric pressure, an 8x8 pixel thermal camera for thermal imaging to detect alive humans.

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All of these sensor data were sent to the station from the bot using HC12, a low-cost radio transceiver module. To prevent data loss in the air, I programmed the transceiver to send the data packets only after getting an acknowledgment packet back from the receiver. This improved the transmission quality by many folds. The downside of this setup was that the speed of transmission was significantly slow. Currently, I am working to increase transmission speed. A conference paper on this project “A Low-Cost Urban Search and Rescue Robot for Developing Countries” has been accepted in the 2019 IEEE International Conference on Robotics, Automation, Artificial-intelligence and Internet-of-Things (RAAICON).