Vehicle Data Retrieval via Encrypted Portable Reader
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle data retrieval systems, such as event data recorders (EDRs), require vehicles to be transported to facilities for data extraction, which is cumbersome, especially for vehicles with mobility issues, and can lead to data corruption or loss during portable device usage.
Innovation Solution
A system comprising a nonvolatile memory in vehicles for storing data, a portable reader device for encrypted data retrieval, and an analyzing device for decryption, allowing secure and accurate data extraction without rewriting or losing information, using a nonvolatile memory that prevents data alteration and a portable reader device that encrypts and stores data externally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data is downloaded from EDR memory using a portable device, then data can be obtained without transportation, but data credibility is impaired due to potential rewriting or loss
Solution Approach 1:
The system divides the data handling process into three separate components: the EDR memory in the vehicle, the portable reader device for data extraction, and the analyzing device for data processing. This segmentation allows the portable device to only read and transfer data without modification capabilities, while the analyzing device performs decryption and analysis, thus preventing data rewriting or loss during the retrieval process.
Solution Approach 2:
The portable reader device acts as an intermediary between the EDR memory and the analyzing device. It extracts data from the EDR memory and transfers it to the analyzing device without allowing modification, serving as a trusted mediator that ensures data integrity during the transfer process while enabling convenient data retrieval.
2Reliability
If vehicle is transported to facility for data extraction, then data credibility is maintained, but operation becomes troublesome and time-consuming
Solution Approach 1:
The system extracts the data reading functionality from the facility-based analysis system and places it in a portable reader device that can be brought to the vehicle. This allows data to be extracted at the vehicle location without transportation, while the extracted data is transferred to an analyzing device for credible processing, thus taking out the data extraction function from the facility context.
Solution Approach 2:
The portable reader device creates a copy of the data from the EDR memory and transfers it to the analyzing device. This copying process allows the original data to remain in the EDR memory untouched, ensuring credibility, while enabling convenient data retrieval at the vehicle location without transportation.
3Ease of operation
If decryption program is installed in portable reader device, then data can be viewed locally, but data credibility is compromised
Solution Approach 1:
Instead of installing the decryption program in the portable reader device (which would allow local data viewing but compromise credibility), the system inverts the arrangement by placing the decryption program only in the analyzing device. This ensures that data credibility is maintained while still allowing decryption and analysis to occur at the facility with proper controls.
Data Source
AI summary
An information obtaining system in a vehicle is provided. The information obtaining system includes a nonvolatile memory built into the vehicle, vehicle information relating to the vehicle being stored in the nonvolatile memory; a portable reader device which is not incorporated into the vehicle and can be carried by a person, the portable reader device being configured to read out the vehicle information from the nonvolatile memory, encrypt the vehicle information, and store the encrypted vehicle information, and being capable of outputting the encrypted vehicle information; and an analyzing device which is not incorporated into the vehicle, the analyzing device being separate from the portable reader device, and configured to decrypt the encrypted vehicle information output from the portable reader device into the vehicle information.