Vehicle Communication Apparatus Motion Detection Security
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Solution Overview
Problem
Existing vehicle-to-X communication devices for retrofitting vehicles face security risks due to potential abuse, such as simulating fake position signals or compromising vehicle data, and require connection to a vehicle's data bus for functionality comparable to factory-installed systems.
Innovation Solution
A communication apparatus with a transceiver, GNSS receiver, and inertial measurement unit that performs motion detection to control data transmission based on ascertained motion patterns, allowing flexible deployment without needing a vehicle data transmission link, and includes authorization and quality checks for secure and authorized data output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motion detection is implemented using IMU and GNSS receivers, then security against abuse is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple sensors (IMU accelerometers, gyroscopes, and GNSS receivers) into a unified motion detection system. These sensors work together to monitor motion patterns and determine whether the device is in a vehicle, creating a integrated security framework that improves reliability while managing complexity through coordinated operation of components.
Solution Approach 2:
The system performs preliminary motion pattern analysis and vehicle detection before enabling full V2X communication functionality. By pre-establishing motion criteria and vehicle presence determination, the system prevents abusive use cases from the outset, allowing security measures to be activated in advance rather than reactively.
2Adaptability or versatility
If connection to vehicle data bus is required for functionality, then communication capability is improved, but security risk increases
Solution Approach 1:
The patent extracts the motion detection and vehicle presence determination functions from the vehicle's internal data bus system and implements them in the aftermarket V2X device itself. By using independent IMU and GNSS sensors, the device obtains vehicle motion information without connecting to the vehicle's data bus, thereby maintaining communication capability while eliminating the security vulnerability of bus access.
Solution Approach 2:
The IMU and GNSS receivers serve as intermediary components that provide motion and position information to the V2X device without requiring direct access to the vehicle's data bus. These intermediaries translate physical motion into digital signals that enable V2X functionality while acting as a security barrier between the aftermarket device and the vehicle's internal systems.
3Reliability
If motion pattern-dependent data transmission is implemented, then security is improved, but loss of information may increase
Solution Approach 1:
The system implements partial data transmission by selectively sending V2X messages based on motion pattern criteria. Instead of transmitting all possible data, the device transmits only those messages that meet the established motion thresholds and vehicle presence conditions. This partial action approach maintains security by filtering transmissions while preserving essential safety-relevant information.
Solution Approach 2:
The motion detection system continuously monitors IMU and GNSS data and provides feedback to the V2X communication module. This feedback mechanism dynamically adjusts data transmission decisions based on real-time motion patterns, ensuring that security requirements are met while minimizing information loss by transmitting data only when motion criteria are satisfied.
Data Source
AI summary
A communication apparatus for subsequent installation in a vehicle and/or for mobile use, having: a transceiver having an antenna for wireless data transmission, a GNSS receiver having an antenna for receiving signals from a global satellite navigation system, an inertial measurement unit, and a housing enclosing the transceiver, the GNSS receiver and the inertial measurement unit at least in part. The communication apparatus is configured to use data captured by the inertial measurement unit and/or the GNSS receiver to perform motion detection, in order to ascertain a motion pattern, and to perform or prevent a data transmission by the antenna for the purpose of wireless data transmission as a function of the ascertained motion pattern. Furthermore, the a method for execution using such a communication apparatus is disclosed.