Tire Sensor Device for Theft Detection via Mounting Status
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Solution Overview
Problem
Tires, especially high-value ones, are frequently stolen due to their significant value, necessitating a quick alert system to prevent and minimize theft consequences.
Innovation Solution
A tire sensor device that recognizes when a tire is removed from a vehicle, transmitting information to a central control unit to output a warning, allowing for immediate notification of theft and enabling location of the tire through radio signals and satellite navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a tire sensor device is installed to detect tire removal, then theft detection capability is improved, but device complexity increases
Solution Approach 1:
The tire sensor device utilizes the existing tire pressure monitoring system infrastructure by nesting the removal detection functionality within the existing sensor housing and communication protocols. The removal detection sensor shares the same physical platform and communication channel as the pressure monitoring system, eliminating the need for separate hardware and reducing overall system complexity.
Solution Approach 2:
The tire sensor device performs multiple functions simultaneously: it monitors both tire pressure and tire removal status using a single integrated system. The control unit processes both pressure data and removal detection signals through the same communication interface, making the system universal and avoiding the need for separate dedicated theft prevention hardware.
2Loss of time
If real-time tire removal notification is implemented, then response time to theft is reduced, but energy consumption increases
Solution Approach 1:
The system uses periodic status checks rather than continuous monitoring. The sensor device checks tire mounting status at regular intervals defined by a predetermined time constant, transmitting removal status only when changes are detected or at scheduled intervals. This periodic operation significantly reduces energy consumption compared to continuous real-time monitoring while still providing timely theft detection.
Solution Approach 2:
The tire sensor device autonomously determines when transmission is necessary by monitoring its own operational state and environmental conditions. The system self-regulates its energy consumption by activating transmission only when tire removal is detected or when scheduled according to the predetermined time constant, without requiring continuous external power management intervention.
3Reliability
If alarm system is activated immediately upon tire removal detection, then theft prevention effectiveness is improved, but false alarms increase
Solution Approach 1:
The system performs preliminary verification before activating the alarm by checking multiple parameters simultaneously. When tire removal is detected, the control unit cross-references the removal signal with operational status data, vehicle ignition state, and other sensor inputs to verify the authenticity of the theft event before triggering the alarm, thereby reducing false alarms while maintaining effective theft detection.
Solution Approach 2:
The system implements feedback mechanisms where the alarm activation decision is based on multiple input signals including tire removal detection, vehicle operational status, and historical data. The control unit continuously monitors these parameters and adjusts alarm activation based on the combined feedback, allowing it to distinguish between actual theft events and situations that may trigger false alarms.
Data Source
AI summary
A method for recognizing the removal of a tire provided with a tire sensor device, includes recognizing, with the tire sensor device, if a respective tire is mounted on the motor vehicle and storing an item of information relating to a mounting status in the tire sensor device. If a removal is determined, the tire sensor device sends an item of information characterizing the removal to a central control unit and the central control unit outputs a warning. A tire sensor device, a central control unit and a system for anti-theft protection through tire removal recognition, are also provided.