Développement d'algorithmes de commande et d'interfaces mécatroniques pour l'interaction physique humain-robot
|Abstract:||For a long time, simple and advanced systems such as robots have been helping humans to accomplish several tasks. In some cases, the system simply replaces the operator while in other cases, the system cooperates with him/her. In the latter case, the system is more a tool used to increase performance or to avoid unpleasant tasks. The principal advantage of this human augmentation is to leave a certain latitude to the operator in the task decision process. Specific strengths of humans and robots are then combined to obtain a synergy, that is obtaining a more complete system than the sum of its parts. However, achieving complex tasks in a way that is intuitive to the human represents a huge challenge. While robots were previously segregated from humans and then designed and programmed accordingly, the new generation of robots must be able to perceive their environment and the human intentions and to respond to them safely, adequately, intuitively and ergonomically. This leads to several opportunities in a wide range of fields such as materials handling, assembly, physical rehabilitation, surgery, learning through haptic simulations, help to disabled people and others. This thesis comprises three parts. The first one deals with the control of physical interaction robots. The approach to an intuitive control, good practices, an interaction algorithm adapting to human intentions and the adaptation of a computed-torque control scheme for human-robot interaction are presented. The second part presents hands on payload systems which are more intuitive to use for the operator. These system developments include mechanical and advanced control innovations. The third part introduces safety features. First, the development of a vibration observer/controller algorithm is presented and then the development of a sensor detecting human proximity is reported. This thesis attempts to provide contributions, in a scientific spirit as much as for industrial applications requiring immediate solutions.|
|Document Type:||Thèse de doctorat|
|Open Access Date:||19 April 2018|
|Collection:||Thèses et mémoires|
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