Service-oriented intelligent automobile vehicle-mounted network QoS guarantee method

Abstract

The invention discloses a service-oriented intelligent automobile vehicle-mounted network QoS guarantee method. The method comprises the steps that topology discovery is carried out when a vehicle is started, and parameter import of nodes in a vehicle electronic and electrical architecture and a vehicle-mounted network is completed; service and QoS demand registration is carried out; when the application layer subscribes to the service, the QoS demand is read; network resource calculation and distribution are carried out on subscribed services according to QoS requirements, corresponding forwarding and scheduling strategies are formulated and issued, and static configuration is completed; when the QoS demand is changed or newly added, the node is updated and the node information is returned, meanwhile, whether the residual network resources in the network meet the changed or newly added QoS demand or not can be cauculated; if yes, a configuration file is issued, and connection is established; if not, performing re-negotiation with the previously configured network resources, and if the negotiation is successful, the whole vehicle network resources is reconfigured, a corresponding configuration file to update network configuration and nodes is generated under the condition of sacrificing a part of non-real-time streams, and connection is established; and if the negotiation fails, alarm is given out.

Description

technical field [0001] The present invention relates to the technical field of in-vehicle network, in particular to the application of technologies such as QoS guarantee of in-vehicle network and time-sensitive network in the field of intelligent driving vehicles, and in particular to a service-oriented intelligent vehicle in-vehicle network QoS guarantee method. Background technique [0002] In recent years, the continuous development of intelligent driving vehicles has made it difficult for the traditional vehicle communication network based on CAN (Controller Area Network, Controller Area Network) to meet the increasing communication needs of the vehicle network. The increase in the number of electronic devices such as sensors, controllers, and actuators inside the vehicle has increased the sharing requirements for data transmission and cross-domain communication of intelligent driving vehicles; The real-time and deterministic requirements of real-time and deterministic r...

AI Technical Summary

Problems solved by technology

[0004] On the other hand, due to the increased dynamics of the vehicle network due to the changing traffic scenarios, the update and change of business traffic brings challenges to the reconfiguration and maintenance of the vehicle network

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