Vehicle Anti-Theft Authentication for Unauthorized Tow Detection
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Solution Overview
Problem
Existing vehicle anti-theft systems, such as immobilizers, cannot prevent vehicles from being stolen using tow trucks and require multiple dedicated keys for multi-user vehicles, and existing monitoring systems only prevent movement from a specific parking location.
Innovation Solution
A vehicle anti-theft device that registers IDs of mobile devices belonging to owners and concerned persons, using wireless communication to detect and notify theft when unauthorized movement occurs, employing sensors and a positioning system to determine the vehicle's state and trigger alarms or recording devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an immobilizer is used for vehicle anti-theft measures, then the engine cannot be started without a dedicated key, but the vehicle can still be stolen using a tow truck and multiple dedicated keys are required for multi-user vehicles
Solution Approach 1:
The patent replaces dedicated physical keys with mobile devices that can be freely distributed to multiple users. The vehicle authentication device communicates with any registered mobile device via wireless communication, allowing multiple authorized users to start the engine without requiring multiple dedicated keys. This resolves the contradiction by making the anti-theft system universal across multiple users while maintaining security.
Solution Approach 2:
The patent replaces the mechanical key-cylinder alignment system with an electronic authentication system using mobile devices and wireless communication. The engine start control is based on electronic verification of mobile device information rather than mechanical key insertion, eliminating the need for multiple dedicated physical keys while maintaining anti-theft capability.
2Reliability
If a monitoring device is provided to prevent vehicle theft, then the vehicle cannot be moved from the parking position, but the vehicle can still be stolen by moving it to another location
Solution Approach 1:
The patent implements a feedback mechanism where the vehicle authentication device continuously monitors for the presence of authorized mobile devices and communicates their status to the notification device. When an unauthorized movement is detected or no authorized mobile device is present, the system notifies the mobile device holders, allowing them to respond. This creates an adaptive anti-theft system that provides real-time information rather than simply preventing movement.
Solution Approach 2:
The patent introduces a notification device as an intermediary between the vehicle authentication device and mobile device holders. This intermediary translates authentication status and movement detection into notifications sent to users' mobile devices, enabling remote awareness and response to potential theft situations without physically constraining the vehicle.
3Reliability
If dedicated keys are required for each user, then the engine can be started only by authorized users, but it requires preparing as many dedicated keys as the number of users
Solution Approach 1:
The patent makes a single vehicle authentication device universal by allowing it to recognize multiple mobile devices as authorized. Instead of requiring one dedicated key per user, the system accepts any mobile device that has been registered with the vehicle authentication device. This dramatically reduces the number of physical components needed while maintaining authorization control.
Solution Approach 2:
The patent creates virtual copies of authorization credentials in the form of mobile device identifiers rather than physical key copies. Each user's mobile device contains or displays information that can be authenticated by the vehicle authentication device, replacing the need for multiple physical key copies with digital representations of authorization.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents vehicle theft by detecting and notifying owners or concerned persons of unauthorized movement, even when they are not near the vehicle, without the need for multiple dedicated keys, thus enhancing security for multi-user vehicles.
Implementation Method 1
a radio receiver for receiving information including an ID of a mobile device wirelessly transmitted from the mobile device
Data Source
AI summary
This vehicle anti-theft device comprises: a wireless receiver that is installed in a vehicle and receives information including the ID of a portable device transmitted wirelessly from the portable device; a first registration processing unit that registers a first ID received by the wireless receiver, using a predefined procedure, as the ID of the portable device belonging to an owner group; a second registration processing unit that, when a second ID is received by the wireless receiver together with the ID registered by the first registration processing unit, registers the second ID as the ID of the portable device belonging to an affiliate group; and a theft determination processing unit that, on detecting movement of the vehicle without having received the ID registered by the first registration processing unit or the ID registered by the second registration processing unit at that time, determines that the vehicle is in a stolen state.