A heterogeneous modular robotic design for fast response to a diversity of tasks

This paper describes a heterogeneous modular robot system design which attempts to give a quick solution to a diversity of tasks. The approach is based on the use of an inventory of three types of modules i.e., power and control module, joint module and specialized module. Each module type aims to balance versatility and functionality. Their design permits rapid and cost effective design and fabrication. They are interchangeable in different ways to form different robot or system configurations. Depending on the task, the operator decides what type of robot can provide the best performance within the mission. A spherical joint module is described and used to build different robots, hence, forward and inverse kinematics models are obtained. Finally, from the modules described in this work, several robot configurations such as robotic arms, leg-based robots and wheel-based robots are assembled to demonstrate the execution of manipulation and locomotion tasks.

► We present the design of a heterogeneous modular robotic system (MRS).
► Its design gives a quick and cost-effective solution for a diversity of tasks.
► The approach is based on the use of an inventory of three types of modules.
► Teleoperation of the system demonstrates its versatility during execution of tasks.
► The heterogeneity in MRS is an advantageous property at an appropriate level.