Broker-Based eSync Bus Protocol for Vehicle Network Interoperability
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Solution Overview
Problem
In vehicles, electronic devices often struggle to communicate effectively due to lack of address information and network compatibility, leading to inefficient message routing and security challenges across multiple networks like Ethernet and CAN bus.
Innovation Solution
The eSync bus protocol employs a broker-based system that registers devices with unique designations, enabling message routing without address information, and ensures secure communication through authentication and encryption mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If devices communicate directly using traditional bus protocols, then communication speed is maintained, but security is compromised due to lack of authentication mechanisms
Solution Approach 1:
The patent introduces a broker as an intermediary component that mediates all communications between devices. The broker handles authentication, authorization, and message routing, allowing devices to communicate securely without implementing complex security protocols themselves. This resolves the contradiction by centralizing security functions in the broker while keeping device-level protocols simple.
2Productivity
If devices are assigned unique addresses for direct communication, then routing efficiency is improved, but network compatibility across different bus types is lost
Solution Approach 1:
The broker implements a universal addressing and routing mechanism that works across different bus types (CAN, Ethernet, LIN). Instead of requiring address-specific routing logic for each bus type, the broker provides a single unified interface that handles message routing efficiently while maintaining compatibility with multiple network protocols simultaneously.
3Ease of operation
If address information is required for device identification, then direct routing is simplified, but communication flexibility across heterogeneous networks is reduced
Solution Approach 1:
The broker serves as an intermediary that abstracts away the complexity of cross-network communication. Devices only need to communicate with the broker using simple protocols, while the broker handles the complex tasks of address translation, message routing, and protocol conversion across different bus types, maintaining both simplicity and versatility.
Data Source
AI summary
A system and method for an eSync bus protocol is provided. The eSync bus protocol uses a broker to route communications between electronic devices within an electronic environment, such as within a vehicle or the like. The electronic devices may first register with the broker, and thereafter send messages to the broker for routing to other registered electronic devices. In this way, the broker may as an intermediary to route communications using the eSync bus protocol. A multi-client architecture is also provided in which multiple domains may be defined by the functions performed by electronic devices within a respective domain.