On-Vehicle Device Unauthorized Image Display Prevention
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Solution Overview
Problem
Existing on-vehicle devices may display images not relevant to driving, such as movies, when the communication cable is replaced with another device after initial authentication, leading to the display of unauthorized images.
Innovation Solution
An on-vehicle device equipped with a reception unit, interruption detection unit, and display control unit that determines if the image transmission device is the authenticated mobile device, and stops displaying images if it is not, using notice images and user input to verify the legitimacy of the transmission source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the communication cable is replaced with another device after initial authentication, then the on-vehicle device can display images from the new device, but unauthorized images not relevant to driving may be displayed
Solution Approach 1:
The system performs authentication and device identification before allowing image transmission. The on-vehicle device stores identification information of the authenticated mobile device and verifies it before displaying images, preventing unauthorized devices from transmitting inappropriate content after the initial authentication
Solution Approach 2:
The interruption detection unit continuously monitors the communication cable to detect device replacements. When a cable replacement is detected, the system re-authenticates the new device and verifies its identification information against stored credentials, providing continuous security feedback to prevent unauthorized image display
2Reliability
If the system continuously verifies device identity to prevent unauthorized images, then security is improved, but processing time and system complexity increase
Solution Approach 1:
Authentication and device identification are performed in advance before image transmission begins. The on-vehicle device stores the identification information of the authenticated mobile device, so subsequent verification simply involves comparing incoming device identifiers against stored credentials, reducing ongoing processing complexity
Solution Approach 2:
The interruption detection unit automatically detects cable replacements and triggers re-authentication without user intervention. The system self-manages the verification process by comparing device identification information against stored data, reducing the need for complex manual authentication procedures
Data Source
AI summary
An on-vehicle device is configured to be able to communicate with a mobile device, and includes a reception unit, an interruption detection unit, a determination unit, and a display control unit. The reception unit receives image information transmitted from a particular mobile device which is a mobile device with which communication is established. The interruption detection unit detects that reception of the image information is interrupted. The determination unit determines whether or not the transmission device which transmits the image information is the particular mobile device, when the reception unit receives image information again after interruption of the reception is detected. The display control unit stops displaying the image information transmitted from the transmission device on a display device when the transmission device is determined not to be the particular mobile device.