In-Vehicle Repeater Routing Map Update via Internal Frame Analysis
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Repeaters face challenges in updating the routing map when new communication nodes are added to the network, often requiring external communication and storage, which can be costly and prone to communication issues.
Innovation Solution
A repeater system that generates and updates a routing map internally within a vehicle communication system without external communication, using a storage unit, retransmission unit, determiner, and generator to create and store the routing map based on information from communication frames when preset conditions are met, such as the addition of new ECUs or a battery installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the routing map is updated using external communication and storage, then the routing map can be updated when new communication nodes are added, but the cost increases and communication issues may occur
Solution Approach 1:
The patent merges the routing map storage function into the repeater device itself, combining the storage unit and routing map into a single integrated system. This eliminates the need for separate external storage devices and reduces system complexity while maintaining the ability to update routing maps when new communication nodes are added.
Solution Approach 2:
The patent introduces a determination unit as an intermediary component that automatically determines whether to update the routing map based on received communication frames. This intermediary mechanism enables automatic routing map updates without requiring external communication or manual intervention, reducing both cost and potential communication issues.
2Adaptability or versatility
If the routing map is stored externally, then the routing map can be updated, but the cost of external storage and communication increases
Solution Approach 1:
The patent combines the routing map storage function into the repeater device's internal storage unit, eliminating the need for separate external storage resources. This integration maintains full routing map update capability while reducing the quantity of external storage resources required.
Solution Approach 2:
The repeater device performs self-service by automatically determining and updating its own routing map using the determination unit and generator. The system uses information from received communication frames to autonomously update the routing map without requiring external storage or communication resources.
3Quantity of substance
If manual intervention is used for routing map updates, then external communication is avoided, but the complexity of operation increases
Solution Approach 1:
The patent implements self-service functionality where the determination unit automatically determines whether routing map updates are needed and the generator automatically generates updated routing maps based on received communication frames. This eliminates manual intervention requirements while avoiding external communication, making the system both autonomous and isolated from external dependencies.
Data Source
AI summary
A repeater is used in an in-vehicle communication system for retransmitting communication frames between communication nodes. The repeater includes a storage unit, a retransmission unit, a determiner, and a generator. The storage unit stores a routing map that associates a frame ID that identifies a communication frame from a communication node and a destination of the communication frame. The retransmission unit retransmits the communication frame between the communication nodes based on the routing map stored in the storage unit. The determiner determines whether a preset condition for generating the routing map is satisfied. The generator generates the routing map based on information in the communication frame received from the communication node and stores the map in the storage unit when the determiner determines that the preset condition is satisfied.