公开(公告)号：US12174639B2

公开(公告)日：2024-12-24

申请号：US17813262

申请日：2022-07-18

Applicant: Tata Consultancy Services Limited

Inventor： Ruddra Dev Roychoudhury ,  Brojeshwar Bhowmick ,  Madhava Krishna Krishnan ,  Gulshan Kumar ,  Sai Shankar Narasimhan ,  Himansu Didwania

IPC: G05D1/00 ,  G06V10/22 ,  G06V10/764 ,  G06V10/774 ,  G06V10/82 ,  G06V20/70

Abstract: In state of the art methods for object goal navigation, scene understanding is implicit in their goal oriented exploration policies. Implicit scene understanding coupled with navigation is shown to be specific to tasks for which training is done and not generalizable to new tasks. Thus, embodiments of present disclosure propose a method of goal-conditioned exploration wherein scene understanding is decoupled from the exploration policies. Here, the scene understanding required for navigation is provided by a region classification network that is trained using semantic graphs representing the scene and agent can be navigated towards the goal either by using any state of the art pure exploration policies or by traversing through potential sub-goals identified based on a Co-occurrence Likelihood score calculated by using predictions from the region classification network. Hence, the method of present disclosure can be easily generalized to new tasks and new environments.

公开(公告)号：US12181880B2

公开(公告)日：2024-12-31

申请号：US17814306

申请日：2022-07-22

Applicant: Tata Consultancy Services Limited

Inventor： Snehasis Banerjee ,  Pradip Pramanick ,  Chayan Sarkar ,  Abhijan Bhattacharyya ,  Ashis Sau ,  Kritika Anand ,  Ruddra Dev Roychoudhury ,  Brojeshwar Bhowmick

IPC: G05D1/00 ,  G06F40/20 ,  G06V10/22 ,  G06V10/82 ,  G06V20/50 ,  G10L15/16 ,  G10L15/22 ,  H04L67/125

Abstract: The embodiments of present disclosure herein address unresolved problem of cognitive navigation strategies for a telepresence robotic system. This includes giving instruction remotely over network to go to a point in an indoor space, to go an area, to go to an object. Also, human robot interaction to give and understand interaction is not integrated in a common telepresence framework. The embodiments herein provide a telepresence robotic system empowered with a smart navigation which is based on in situ intelligent visual semantic mapping of the live scene captured by a robot. It further presents an edge-centric software architecture of a teledrive comprising a speech recognition based HRI, a navigation module and a real-time WebRTC based communication framework that holds the entire telepresence robotic system together. Additionally, the disclosure provides a robot independent API calls via device driver ROS, making the offering hardware independent and capable of running in any robot.

公开(公告)号：US11573563B2

公开(公告)日：2023-02-07

申请号：US16988453

申请日：2020-08-07

Applicant: Tata Consultancy Services Limited

Inventor： Abhijan Bhattacharyya ,  Ashis Sau ,  Ruddra Dev Roychoudhury ,  Hrishav Bakul Barua ,  Chayan Sarkar ,  Sayan Paul ,  Brojeshwar Bhowmick ,  Arpan Pal ,  Balamuralidhar Purushothaman

IPC: G05D1/00 ,  G05D1/02 ,  H04L67/141

Abstract: Robotic platform for tele-presence applications has gained paramount importance, such as for remote meetings, group discussions, and the like and has sought much attention. There exist some robotic platforms for such tele-presence applications, these lack efficacy in communication and interaction between remote person and avatar robot deployed in another geographic location thus adding network overhead. Embodiments of the present disclosure for edge centric communication protocol for remotely maneuvering tele-presence robot in geographically distributed environment. More specifically, edge-centric tele-presence robot architecture is provided for maneuvering tele-presence robot in distributed geographical environment, wherein the architecture provides a framework that implements both cloud and edge-centric systems together with a first communication protocol for communication between a master device and an edge device and a second communication protocol different from the first communication protocol for communication between the edge device and the tele-presence robot to improve robustness and efficacy in communication.