In-Vehicle Network Configuration Inspection by Specification Comparison
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Solution Overview
Problem
Existing technologies are unable to determine whether an appropriate in-vehicle network is configured by the plurality of in-vehicle devices assembled into a vehicle, as they only verify the presence of a correct program in the second control unit without assessing the network configuration.
Innovation Solution
A management device with specification and state information acquisition units, along with a comparison unit, is used to acquire and compare the specification and assembly state of in-vehicle devices, determining if the network configuration conforms to the specified requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing verification methods are used to check program presence in control units, then program integrity can be confirmed, but network configuration compliance cannot be determined
Solution Approach 1:
The patent combines program verification functionality with network configuration inspection functionality into a single integrated inspection system. The management device simultaneously verifies program integrity in control units and inspects network configuration compliance by acquiring actual configuration information and comparing it with specification information, thus resolving the limitation of existing methods that could only verify programs but not network configuration
Solution Approach 2:
The inspection system is designed with multi-functional capabilities: it can verify program integrity in control units, acquire actual network configuration information from multiple sources (vehicle specification information, in-vehicle devices, external servers), and compare actual configuration with specified configuration. This universal inspection capability allows a single system to perform both program verification and network configuration compliance determination
2Measurement precision
If comprehensive network configuration inspection is implemented by acquiring specification and state information and comparing them, then network configuration compliance can be accurately determined, but system complexity increases
Solution Approach 1:
The inspection system is segmented into distinct functional modules: a specification information acquisition unit that obtains intended network configuration, a state information acquisition unit that obtains actual network configuration from multiple sources (in-vehicle devices, external servers), and a comparison unit that determines compliance by comparing the two. This segmentation allows each module to perform a specific function, making the overall complex inspection process manageable and systematic
Solution Approach 2:
The management device acts as an intermediary that coordinates between multiple information sources (vehicle specification information, in-vehicle devices, external servers) and the inspection process. It acquires specification information indicating intended network configuration, acquires actual configuration information from various sources, and performs the comparison to determine compliance, thereby simplifying the interaction between multiple components
Data Source
AI summary
A management device includes: a specification information acquisition unit configured to acquire specification information indicating a specification of a configuration of an in-vehicle network; a state information acquisition unit configured to acquire state information indicating an assembly state, in the in-vehicle network, of a plurality of in-vehicle devices forming the in-vehicle network; and a comparison unit configured to compare the specification indicated by the specification information acquired by the specification information acquisition unit with the assembly state indicated by the state information acquired by the state information acquisition unit.