Estimation of the instantaneous centre of rotation with nonholonomic omnidirectional mobile robots

Formation control of nonholonomic mobile robots with omnidirectional visual servoing and motion segmentation

We consider the problem of having a team of nonholonomic mobile robots follow a desired leader-follower formation using omnidirectional vision. By specifying the desired formation in the image plane, we translate the control problem into a separate visual servoing task for each follower. We use a rank constraint on the omnidirectional optical flows across multiple frames to estimate the positio...

Localization of Mobile Robots with Omnidirectional Cameras

Localization of mobile robots are important tasks for developing autonomous mobile robots. This paper proposes a method to estimate positions of a mobile robot using a omnidirectional camera on the robot. Landmarks for points of references are set up on a field where the robot works. The omnidirectional camera which can obtain 360 [deg] around images takes photographs of these landmarks. The po...

Omnidirectional sensors for mobile robots

CONTACT Dr.-Ing. Dipl. Inform. Hartmut Surmann Schloss Birlinghoven, 53757 Sankt Augustin, Tel 02241/142518 Fax 02241/144-2518 email: [email protected] REFERENCES [1] Surmann, H.: The VolksBot, http://www.VolksBot.de, Oct. 2008 [2] Murphy, R.: Trial by fire [rescue robots]. Robotics & Automation Magazine, IEEE 11 (3) (Sept. 2004) 50–61 [3] Durrant-Whyte, H., Bailey, T.: Simulta...

ISS properties of nonholonomic mobile robots

The paper presents the first result on ISS properties of dynamic unicycle models describing nonholonomic mobile robots. It is known that ISS is related to smooth stabilizability, however this relation cannot exclude the possibility of non smoothly stabilizable systems to possess ISS properties. In fact, it is shown that in a certain topology that seems to suit the nonholonomic nature of the mob...

Model Predictive Control of Nonholonomic Mobile Robots