Communication method in cross-local area network distributed system based on Zenoh

Abstract

The invention discloses a communication method and system in a cross-local area network distributed system based on Zenoh. The method comprises the following steps: dividing node categories for edge small stations and dynamically establishing a global Zenoh named data network; based on a global Zenoh naming data network, receiving information of edge small stations and completing data transmission; the node category comprises a seed node and a common node, and the global Zenoh named data network is a Zenoh network where the seed node is located. By using the method and the system, cross-local-area-network communication can be carried out without connecting to the cloud host through a core network, and the characteristics of the distributed system are considered, so that the stability and the availability of the system are enhanced. The communication method in the cross-local area network distributed system based on Zenoh can be widely applied to the field of cross-local area network communication.

Description

technical field [0001] The invention relates to the field of cross-local area network communication, in particular to a Zenoh-based communication method in a cross-local area network distributed system. Background technique [0002] In the mobile edge computing (Mobile Edge Computing) scenario, some resource-constrained edge devices (such as sensors, cameras, robots, etc.) will generate a large amount of data every day that needs to be processed to provide services such as Internet of Vehicles, face recognition, and monitoring. . At this time, due to insufficient computing resources and energy, the edge device cannot complete the calculation well and deliver on time. The device needs to offload the task to a nearby edge server or cloud server for calculation. In robot applications, the robot operating system (Robot Operating System, ROS) is often used as a means of communication. Through the ROS robot, the sensor data, lidar data, camera data, etc. collected by itself can b...

AI Technical Summary

Problems solved by technology

At this time, due to insufficient computing resources and energy, the edge device cannot complete the calculation well and deliver on time. The device needs to offload the task to a nearby edge server or cloud server for calculation

In robot applications, the robot operating system (Robot Operating System, ROS) is often used as a means of communication. Through the ROS robot, the sensor data, lidar data, camera data, etc. collected by itself can be transmitted to nearby computing devices for calculation. , in complex edge networks, servers and mobile edge devices are often not in the same local area network, and communication and computing frameworks such as ROS have the limitation that devices are in the same local area network

[0003] Existing cross-LAN communication solutions have the problem of single-point dependence, and need to maintain an accessible public node. If the node cannot be accessed, the communication will be terminated directly

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