Wireless Terminal Command Filtering for Vehicle Safety
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Solution Overview
Problem
The integration of a radio communication module in On-Board Diagnostics (OBD) systems poses a security risk as it allows malicious third parties to remotely control vehicles through mobile terminals, potentially threatening passenger safety by transmitting wrong or forged command data.
Innovation Solution
A command data processing method that selectively delivers command data to vehicles based on the operation status, communication protocol, type of data, and identity verification of the mobile terminal, ensuring only authorized and safe commands are executed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the radio communication module supports remote communication, then the ease of operation is improved, but the safety deteriorates due to potential unauthorized control
Solution Approach 1:
The patent introduces an intermediary verification mechanism that mediates between the remote control request and the vehicle's execution system. The verification unit acts as a mediator that checks authentication information and command validity before allowing the control unit to execute received commands, thus enabling remote operation while preventing unauthorized control
Solution Approach 2:
The patent implements preliminary verification actions before command execution. The verification unit performs authentication checks and command validity verification in advance of the actual control operation, ensuring that only authorized and safe commands are executed, thereby maintaining safety while enabling remote operation
2Ease of operation
If command data is transmitted freely, then the ease of operation is improved, but the harmful factors increase due to malicious applications
Solution Approach 1:
The verification unit serves as an intermediary that filters command data between the communication interface and the control unit. It authenticates the mobile terminal and validates command content, blocking malicious commands while allowing legitimate ones to pass through, thus maintaining operational freedom while eliminating harmful factors
Solution Approach 2:
The patent converts the potential harm of unrestricted command transmission into a benefit by implementing a verification system that uses the received command data as input for authentication and validation processes. The verification mechanism transforms the risk into a controlled process where only verified commands can affect the vehicle
3Productivity
If remote control is enabled, then the productivity is improved, but the harmful factors increase due to forged commands
Solution Approach 1:
The verification unit performs preliminary authentication of the mobile terminal and validation of command data before the control unit executes any remote control operations. This preliminary verification ensures that only authenticated users can send commands and that the commands themselves are valid, thereby enabling efficient remote control while preventing forged commands
Data Source
AI summary
A command processing method of a wireless terminal configured to communicate with a transportation means and a mobile terminal. The command data processing method includes receiving command data destined for the transportation means from the mobile terminal and checking an operation status of the transportation means. The method also includes determining whether to deliver the command data to the transportation means based on the operation status of the transportation means and information on the command data and delivering, when the command data is determined to be delivered to the transportation means, the command data to the transportation means.