This paper proposes a control method for wheels to pass over rough terrain. In our previous work, we have developed a holonomic mobile mechanism capable of running over steps. The mechanism realizes omni-directional motion on a flat floor and passes over uneven ground in forward and backward directions. The vehicle has seven special wheels with cylindrical free rollers and two passive body axes...

Airborne Laser Scanning (ALS) is capable of estimating a variety of forest parameters using different metrics extracted from the normalized heights of the point cloud using a Digital Elevation Model (DEM). In this study, six interpolation routines were tested over a range of land cover and terrain roughness in order to generate a collection of DEMs with spatial resolution of 1 and 2 m. The accu...

A case study of the Eskilstuna River in Sweden is presented. This study is carried out within the project KRIS-GIS, a Swedish initiative of handling crisis situations, including flooding. The purpose is to show how different resolutions in input elevation data affect the resulting inundation maps. Terrain elevation points at the sides of the river were gathered from an airborne laser altimetry ...

RÉSUMÉ. Les phases amont des projets de conception peuvent être des périodes propices à l’introduction d’innovations technologiques dans les produits. Lors de ces phases, les processus de coopération et de confrontation des différents points de vue entre les acteurs impliquent des échanges d’informations qui sont parfois informels, non contractuels et peu ou pas structurés. Pourtant, ces phases...

Sensor networks offer the potential to provide timely information in an untethered and unattended real-world domain. Dynamic (real-time) visualization of sensor network data is needed in order to fully harvest that potential, allowing the users to see the patterns and trends – both spatial and temporal – inherent in the sensor data. Such visualization is the goal of this paper. Our approach to ...

In order to study lunar regolith properties, wireless sensor network is planned to be deployed on surface of the Moon. This network can be deployed having few wireless sensor nodes capable of measuring soil properties and communicating results, as and when ready. Communication scenario on lunar surface is quite different as compared to that on the Earth, as there is no atmosphere and also there...

Animals are the current gold standard of locomotion ability. Their ability to navigate rough terrain is unmatched by their man-made counterparts. Recent studies by biologists have begun to demonstrate some of the principles behind their remarkable capabilities. In particular, studies of cockroaches have shown that they use a feed-forward motor actuation pattern that is virtually unchanged, even...