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Wyszukujesz frazę "field robots" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Bending path understanding based on angle projections in field environments
Autorzy:
Wang, Luping
Wei, Hui
Tematy:
bending path
field robots
scene understanding
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Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Powiązania:
https://bibliotekanauki.pl/articles/59115599.pdf  Link otwiera się w nowym oknie
Opis:
Scene understanding is a core problem for field robots. However, many unsolved problems, like understanding bending paths, severely hinder the implementation due to varying illumination, irregular features and unstructured boundaries in field environments. Traditional three-dimensional(3D) environmental perception from 3D point clouds or fused sensors are costly and account poorly for field unstructured semantic information. In this paper, we propose a new methodology to understand field bending paths and build their 3D reconstruction from a monocular camera without prior training. Bending angle projections are assigned to clusters. Through compositions of their sub-clusters, bending surfaces are estimated by geometric inferences. Bending path scenes are approximated bending structures in the 3D reconstruction. Understanding sloping gradient is helpful for a navigating mobile robot to automatically adjust their speed. Based on geometric constraints from a monocular camera, the approach requires no prior training, and is robust to varying color and illumination. The percentage of incorrectly classified pixels were compared to the ground truth. Experimental results demonstrated that the method can successfully understand bending path scenes, meeting the requirements of robot navigation in an unstructured environment.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Messor - Verstatile wal king robot for serach and rescue missions
Autorzy:
Walas, K.
Belter, D.
Tematy:
walking robot
six-legged
field robots
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Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Powiązania:
https://bibliotekanauki.pl/articles/384762.pdf  Link otwiera się w nowym oknie
Opis:
Nowadays there are more people living in the cities than in the countryside.With the growing number of multistorey buildings, which are built very fast, the number of possible collapses is rising. Rescue missions in ruins of such constructions pose a possible threat to the life of the rescuers. To avoid involving people in such missions mobile robots are used. The use of a six-legged robot in Urban Search and Rescue missions is proposed due to its static stability while walking on rough terrain. In this paper six-legged walking robot Messor is described. Its mechanical structure was designed in such a way, that negotiating obstacles met in urban space is possible. In order to perform such tasks as walking over rough terrain or climbing stairs the robot is equipped with significant number of on-board sensors. The control algorithms, which take advantage of mechanical structure were developed. At the beginning a mechanical structure of the robot is described. Next, the design of the robot control system architecture is considered. Then the robot sensory system is presented and afterward the application software is characterized.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Motion planning for wheeled mobile robot using potential field method
Planowanie ruchu mobilnego robota kołowego z zastosowaniem sztucznego pola potencjalnego
Autorzy:
Żylski, W.
Tematy:
mobile robots
obstacle avoidance
artificial potential field
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Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Powiązania:
https://bibliotekanauki.pl/articles/281931.pdf  Link otwiera się w nowym oknie
Opis:
A potential field method in the real-time approach toward avoidance of obstacles for a mobile robot has been developed. A collision-free path and goal-seeking behaviour are calculated using an artificial potential field method. The proposed reactive nevigation approach is based on the coordination of elementary responses. To avoid convex obstacles, the navigator generates a "reaching the middle of the collision-free space" and goal-seeking behaviours. A control strategy based on artificial potential fields that generates a trajectory to be followed by a mobile robot that represents a reference for the robot at the same time is proposed. The effectiveness of the proposed method is numerically verified by a series of experiments on the emulator of the wheeled mobile robot Pioneer-2DX.
W pracy rozważa się problem generowania bezkolizyjnej trajektorii ruchu mobilnego robota w czasie rzeczywistym z zastosowaniem sztucznego pola potencjalnego. Analizuje się elementarne zachowanie mobilnego robota, takie jak: osiągnij środek wolnej przestrzeni oraz idź do celu. Wygenerowana trajektoria ruchu umożliwiająca omijanie przeszkód wypukłych uwzględnia elementarne zachowania robota. Stanowi ona trajektorię zadaną, która realizuje układ sterowania. Efektywność zaproponowanego rozwiązania została numerycznie zweryfikowana na emulatorze mibilnego robota kołowego Pioneer-2DX.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A field study on Polish customers’ attitude towards a service robot in a cafe
Autorzy:
Indurkhya, Bipin
Kiraga, Maria
Samsel, Zofia
Wydawca:
Springer
Opis:
MoreandmorestoresinPolandareadoptingrobotsascustomerassis- tants or promotional tools. However, customer attitudes to such novelty remain unexplored. This study focused on the role of social robots in self-service cafes. This domain has not been explored in Poland before, and there is not much research in other countries as well. We conducted a field study in two cafes with a teleop- erated robot Nao, which sat next to the counter serving as an assistant to a human barista. We observed customer behavior, conducted semi-structured interviews and questionnaires with the customers. The results show that Polish customers are neutral and insecure about robots. However, they do not exhibit a total dislike of these technologies. We considered three stages of the interaction and identified features of each stage that need to be designed carefully to yield user satisfaction.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
    Wyświetlanie 1-4 z 4

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