Vehicle Function Activation via Communication Signal Localization
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Solution Overview
Problem
Existing vehicle authentication systems face challenges in reliably and efficiently distinguishing between indoor and outdoor locations of an ID transmitter, leading to complex and costly implementations that compromise safety and comfort.
Innovation Solution
A method utilizing existing communication connections, such as mobile radio or GPS, to evaluate signal properties and patterns for localization, determining the ID transmitter's location within the vehicle, thereby activating vehicle functions based on its presence or absence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional authentication systems use complex interior-exterior recognition methods, then localization accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The system uses the ID transmitter's own communication signals (mobile radio, GPS) to perform localization. The vehicle's monitoring device evaluates signals already present in the environment without requiring additional dedicated localization hardware, making the system self-sufficient and cost-effective
Solution Approach 2:
The monitoring device serves multiple functions: it monitors communication signals for authentication purposes and simultaneously evaluates these same signals for localization. This multi-functionality eliminates the need for separate localization systems, reducing overall device complexity
2Reliability
If manual ID transmitter operation is required for authentication, then security is improved, but ease of operation decreases
Solution Approach 1:
The system performs preliminary localization evaluation by monitoring communication signals before initiating authentication. This preliminary action determines whether the ID transmitter is inside or outside the vehicle, enabling automatic authentication decisions without requiring manual user actions
Solution Approach 2:
The patent replaces manual mechanical operations (physically handling the ID transmitter) with automated electronic signal monitoring and evaluation. The monitoring device automatically detects vehicle influences on communication signals and triggers authentication based on localization results, eliminating the need for manual user intervention
3Ease of operation
If keyless-go systems initiate authentication automatically, then ease of operation is improved, but reliability of interior-exterior recognition decreases
Solution Approach 1:
The system continuously monitors communication signals and provides feedback about vehicle influences on signal transmission. This feedback mechanism allows the monitoring device to dynamically adjust authentication decisions based on real-time localization information, ensuring both convenience and reliability
Solution Approach 2:
The monitoring device performs preliminary evaluation of communication signals to determine localization status before authentication is initiated. This preliminary action ensures that automatic keyless-go systems have accurate localization information available, maintaining reliability while providing convenient automatic operation
Data Source
AI summary
The invention relates to a method (100) for activating at least one function of a vehicle (1), preferably in a security system of the vehicle (1), wherein a mobile communication unit (20) for communication (120) is provided, the method comprising the following steps: a) monitoring the communication (120), wherein at least one evaluation signal (110) specific for the communication (120) is determined; b) detecting a vehicle influence (121) on a transmission during the communication (120) on the basis of an evaluation of the evaluation signal (110) in order to carry out a localization of the communication unit (20); c) activating the function of the vehicle (1) depending on the detection of the vehicle influence (121).