Survey and Preliminary Results on the Design of a Visual Light Communication System for Radioactive and Underwater Scenarios

Giovanni Napoli, José Avilés, Raúl Prades, Pedro Valero

Abstract

The use of radio-frequency communication systems is very well known and also it is broadly used in the design of mobile robotics. In fact, it can be very well applied in rescue robotic systems, such as the ones that present smoke and fire. In radioactivity scenarios the robot might get problems to communicate, in the presence for example of magnets. Also, in underwater fields radio-frequency solutions need to improve the communication distance, while sonar systems present variable delays and limited bandwidth, which are difficulties to provide remote visual feedback to the operator. This paper states that field robotic systems, such as the ones in radioactivity and underwater scenarios, need to complement the current communication systems with multi-modal solutions, in order to enhance operation safety and reliability, while better adapting to the mission unexpected situations. For this, Visual Light Communication solutions have been studied in detail and a preliminary prototype, which is presented in this paper, has been designed. This prototype would need further work to be applied successfully in real radioactive and underwater scenarios, as stated in the conclusions.

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