Vehicle Gateway Caching Buffer for Secure Data Transfer
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Solution Overview
Problem
Existing vehicle communication systems lack secure and efficient data transfer mechanisms between controllers and external resources, particularly in distributed storage systems, where data replication and secure connectivity are critical but often compromised by third-party interference.
Innovation Solution
A vehicle gateway with a caching buffer is implemented to establish secure channels using cryptographic protocols like SSL/TLS, generating links between controllers and host devices, and incorporating a caching buffer for data storage and retrieval from distributed data storage nodes, ensuring secure and efficient data transfer across a network of peer nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gateway establishes secure channels using cryptographic protocols between controllers and external resources, then communication security is improved, but device complexity increases
Solution Approach 1:
The gateway acts as an intermediary device between vehicle controllers and external resources, establishing secure channels using cryptographic protocols. It generates links between controllers and host devices, managing security operations centrally to protect communication without requiring each controller to implement complex security mechanisms independently.
2Productivity
If a caching buffer is implemented for data storage and retrieval from distributed storage nodes, then data transfer efficiency is improved, but device complexity increases
Solution Approach 1:
The caching buffer pre-stores frequently accessed data from distributed storage nodes before it is needed by controllers. This preliminary action allows the gateway to retrieve data from the cache rather than querying external storage nodes each time, significantly improving data transfer efficiency while keeping the buffer size manageable.
Solution Approach 2:
The caching buffer provides localized high-speed storage within the gateway, creating a quality difference between the fast cache and slower external distributed storage. This local quality improvement allows frequent data accesses to be served quickly from the gateway's buffer, reducing latency and improving overall system productivity.
3Reliability
If data is stored in a distributed data storage system with multiple nodes, then data reliability is improved, but data access time increases
Solution Approach 1:
The caching buffer pre-loads and stores copies of frequently accessed data from the distributed storage nodes before they are needed. This preliminary action eliminates the need to query external nodes for every data request, significantly reducing data access time while maintaining the reliability benefits of distributed storage.
Solution Approach 2:
The gateway's caching buffer acts as an intermediary layer between controllers and the distributed storage system. It intercepts data requests, serves data from its local cache when available, and only queries external storage nodes when data is not in the cache, thereby reducing access time while preserving data reliability through the distributed architecture.
4Productivity
If a caching buffer stores data for repeated use before discarding, then data reuse efficiency is improved, but memory usage increases
Solution Approach 1:
The caching buffer creates a localized high-speed storage area within the gateway with different characteristics from external storage. It optimally sizes this local buffer to hold frequently reused data, achieving high data reuse efficiency for critical operations while accepting that not all data can be cached. The buffer manages its own content dynamically based on access patterns.
Data Source
AI summary
A system that has a plurality of controllers of a vehicle configured to execute functions of the vehicle as well as a gateway of the vehicle configured to secure communications between the plurality of controllers and resources of the controllers. To secure the communication, the gateway can be configured to generate links between the controllers and host devices having the resources according to a stored group of approved devices as well as establish, via the links, secured channels for communication between the controllers and the host devices. The system can also include a caching buffer, configured to hold data to be stored to and retrieved from data storage nodes of a distributed data storage system of the vehicle. The distributed data storage system can be configured to store data used by operations performed by the controllers and the gateway.