Smart Key Theft Detection Through Radio Transmission Cessation
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Solution Overview
Problem
Existing smart key systems are vulnerable to theft due to relay attacks and lack effective anti-theft measures, making it difficult to integrate motion sensors, and there is a need for improved security measures.
Innovation Solution
An information processing apparatus that utilizes existing smart key system functions to detect anti-theft measures taken by users, such as stopping radio wave transmission, installing lighting, attaching locks, and parking in secure locations, and grants incentives like insurance discounts based on these actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If motion sensors are added to the key to improve security, then anti-theft capability is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent uses radio wave transmission cessation as a substitute for motion sensor detection. Instead of adding physical motion sensors to detect key movement, the system copies the security function by monitoring when radio wave transmission stops, inferring key removal or theft risk from the absence of communication signals.
Solution Approach 2:
The patent replaces mechanical motion sensing with electromagnetic signal monitoring. Rather than using physical sensors to detect key movement, the system uses the vehicle's existing radio communication infrastructure to detect when the key stops transmitting, substituting a mechanical detection system with an electromagnetic field-based approach.
2Reliability
If motion sensors are integrated into the smart key system, then security is improved, but ease of manufacture decreases
Solution Approach 1:
The patent makes the vehicle's radio communication system perform multiple functions: normal keyless entry operation and security monitoring. The existing radio waves used for authentication and communication also serve as the detection mechanism for anti-theft monitoring, eliminating the need for separate motion sensor hardware and simplifying manufacturing.
Solution Approach 2:
The system copies the security detection function from physical motion sensors to radio communication monitoring. By observing when radio wave transmission ceases, the system replicates the security monitoring capability of motion sensors without requiring the actual sensor hardware, making the system easier to manufacture.
3Reliability
If the electronic key continuously transmits radio waves, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements periodic radio wave transmission instead of continuous transmission. The electronic key transmits radio waves at intervals or only when needed for authentication, reducing energy consumption while maintaining communication reliability through the server's ability to track transmission cessation and infer security events.
Data Source
AI summary
Vehicle theft prevention measures are promoted by providing a controller configured to receive, from a vehicle, information corresponding to the vehicle theft prevention measures performed by a user; and output information for providing an incentive to the user according to the information received from the vehicle.