Theme

R&D issues

Even in distant locations, teleoperation of the CA enables the user to experience the CA as if he/she were in the same place, and to communicate with people in remote locations. To achieve this, the CA must be able to be operated as desired by the teleoperator, and the video and audio from remote location must be clearly experienced. In addition, the CA must be able to behave like a human (teleoperator) so that people who talk to or interact with the teleoperator via the CA do not feel discomfort.
This not only requires that the CA have sufficient functionality and performance, but also that the network between the CA and the teleoperator be of high quality.
In this research item, we will develop a CA reliability assurance platform to maintain stable communication performance throughout the entire communication path, including both wired and wireless communication. Develop a method to maintain optimal networks that follows the movement (change of location) of the CA and teleoperator and takes into account the surrounding congestion to minimize jitter and delays in the communication.

●Design a communication platform "support node"

◎Ensure redundancy of E2E communication path as much as possible on the current network
◎Located in terminals, network connection points, and networks managed by different entities
　○Essentially, the communication equipment in each sub-network should have a function
　○In today's networks, it is necessary to implement functions in servers, etc. independently of communication devices.
◎Although it is difficult to guarantee the quality of the Internet as a whole, it is necessary to maintain the quality by connecting "sections where the communication quality can be guaranteed" and "sections where the communication quality can be estimated" and controlling them dynamically.

●Two functions of a support node

1.Function to grasp and monitor the communication quality of the link between adjacent support nodes
　○The communication quality is grasped for each section between each support node, and the information is regularly updated.
2.A function of dynamically selecting a communication path according to the grasped link quality
　○The support node operates as a virtual router to configure the overlay network, and dynamically switches the communication path between the teleoperator and the CA to an alternative path when quality degradation or failure occurs in the communication path.