Conductive Bolt Anti-Theft Sensing for False-Alarm-Free Rim Removal
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Solution Overview
Problem
Existing anti-theft technologies for vehicle rims or frames are prone to false alarms due to environmental factors like strong winds or large vehicles passing by, and are often costly and ineffective in detecting small angle tilts or removals of vehicle rims.
Innovation Solution
An anti-theft sensor system utilizing conductive bolts or screws and iron frames, which forms an electrical loop with a processor and communication module. When the loop is disconnected, the processor sends a warning signal to an alarm device, triggering an immediate alarm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If vibration sensing is used as anti-theft sensing, then the cost is relatively low, but it is prone to false alarms due to strong winds or large vehicles passing by
Solution Approach 1:
The patent segments the anti-theft sensing function into two independent parts: vibration sensing (for low cost) and electrical loop sensing through conductive bolts (for high reliability). The electrical loop is formed by conductive members connected to bolts that secure the vehicle rim, creating a separate detection mechanism that does not suffer from environmental false alarms while maintaining low overall system cost.
2Measurement precision
If tilt sensor is used as anti-theft sensing, then it can detect vehicle rim removal, but it is difficult to detect small angle tilts and the cost is relatively high
Solution Approach 1:
The patent replaces the mechanical tilt sensor system with an electrical loop sensing system using conductive bolts and conductive members. This substitution eliminates the need for complex mechanical tilt detection while providing more accurate detection of rim removal events. The electrical loop provides binary clear detection (connected/disconnected) that is more precise for removal detection than small-angle tilt measurement.
3Measurement precision
If electrical loop with conductive bolts is used, then accurate detection of rim removal is achieved, but the device complexity increases
Solution Approach 1:
The patent makes the bolts serve multiple functions: they mechanically secure the vehicle rim to the wheel AND simultaneously form part of the electrical loop for anti-theft detection. This multi-functionality eliminates the need for separate detection components, reducing overall system complexity while maintaining high detection accuracy. The conductive members are integrated into the existing bolt structure rather than adding separate sensing apparatus.
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
The system provides accurate and immediate detection of vehicle rim or frame removals, minimizing false alarms and ensuring effective anti-theft protection without increasing costs.
Implementation Method 1
the first conductive member and the second conductive member are electrically connected to the processor, and the first conductive member and the second conductive member are connected with at least one bolt to form an electrical loop
Data Source
AI summary
An anti-theft sensor and an alarm system thereof are provided. The alarm system includes a plurality of anti-theft sensors and an alarm device, and the plurality of anti-theft sensors are electrically connected to bolts of a vehicle frame of a vehicle to form an electrical loop/circuit, so that the plurality of anti-theft sensors must be removed when the vehicle frame is moved. In this way, when the plurality of anti-theft sensors are removed, the plurality of anti-theft sensors are triggered to send a warning signal to the alarm device, so that the alarm device sends out an alarm. Therefore, the vehicle owner can be immediately and correctly reminded that the condition of the vehicle frame of the vehicle is abnormal without false alarms.