Automotive Gateway Routing Target List Activation
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Solution Overview
Problem
Current routing methods in automotive communication networks are time-consuming and resource-intensive due to the need to analyze and switch multiple communication networks sequentially, leading to increased overall routing time, especially with high message volumes.
Innovation Solution
A method and gateway system that determines the active or inactive state of each communication network and creates a target list to only activate networks necessary for data transmission, eliminating the need for sequential analysis and reducing the number of operations required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gateway computer sequentially analyzes each communication network according to a predetermined list to determine transmission state, then the routing function can be performed, but the execution time increases and the gateway computer becomes overloaded
Solution Approach 1:
The gateway computer pre-determines and stores the transmission state of each communication network in advance, rather than analyzing the state sequentially when a data frame needs to be routed. This preliminary action allows the gateway to quickly check pre-stored states and make routing decisions without time-consuming sequential analysis, directly resolving the contradiction between reliable routing and execution time.
2Reliability
If the gateway computer sequentially checks each network in the predetermined list to determine if activation is needed, then all networks can be properly managed, but the number of operations increases and processing speed decreases
Solution Approach 1:
The gateway computer segments the network management task by maintaining separate storage for each communication network's transmission state, allowing independent and parallel access to each network's status. This segmentation enables the gateway to directly query the state of specific networks without sequentially checking all networks, improving processing speed while maintaining reliable network management.
Solution Approach 2:
The transmission states of all communication networks are determined and stored in advance in a data structure, so when routing is needed, the gateway only needs to retrieve pre-computed state information rather than performing sequential analysis. This preliminary determination of network states directly increases processing speed while ensuring accurate network management.
3Use of energy by moving object
If the gateway computer activates communication networks on demand during sequential analysis, then networks are activated only when needed, but the overall routing time increases due to the sequential process
Solution Approach 1:
The gateway computer pre-determines which communication networks need to be activated by storing their transmission states in advance. When a data frame arrives, the gateway can immediately check the pre-stored states and activate only the necessary networks without time-consuming sequential analysis, reducing routing time while maintaining efficient network activation.
Solution Approach 2:
The gateway computer creates a data structure that copies or represents the transmission states of all communication networks in memory. This copy allows the gateway to quickly query and determine which networks need activation without performing actual sequential analysis on the networks themselves, reducing routing time while ensuring accurate network activation decisions.
Data Source
AI summary
A method for routing a data frame in a communication system on board a motor vehicle. The method includes a step of determining, on the basis of a first list and a second list, a “target” list indicating, for each communication network of the system, whether the transmission state of the communication network is active or has to switch to the active state to transmit the equipment data, and for each communication network in the target list, and if the transmission state of the communication network is inactive but has to switch to the active transmission state to transmit the equipment data, a step of activating the communication network and a step of transmitting the equipment data over the communication network, or if the communication network communication is already in the active transmission state, a step of transmitting the equipment data over the communication network.