Vibration-Based Vehicle Usage Tracking
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Solution Overview
Problem
Current methods for estimating vehicle mileage and speed, such as OBD devices and odometers, are prone to errors, costly, and power-intensive, while GPS-based solutions require continuous device operation and may not provide accurate data when the smartphone is not present.
Innovation Solution
A vehicle-installed device senses vibrations to determine usage, transmitting data to a smartphone for processing when network access is available, allowing for accurate tracking of distance and speed without continuous GPS use, using accelerometers and machine learning to infer vehicle motion and correct for errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If OBD devices are used to directly acquire odometer and speedometer readings, then measurement accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical/OBD-based measurement system with a vibration-based detection system. Instead of directly reading odometer and speedometer through OBD ports, the system uses a vibration sensor to detect vehicle motion characteristics, which are then processed to estimate mileage and speed. This substitution reduces device complexity while maintaining measurement accuracy.
Solution Approach 2:
The patent introduces vibration as an intermediary parameter to indirectly measure mileage and speed. Rather than directly accessing vehicle data through OBD, the system detects vibrations caused by vehicle motion and uses these vibration patterns as mediators to infer travel characteristics. This intermediary approach simplifies the system architecture while providing accurate measurements.
2Measurement precision
If OBD devices are installed to continuously monitor vehicle usage, then measurement accuracy is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic vibration sampling rather than continuous monitoring. The vibration sensor operates in intervals, capturing vibration data at specific moments during vehicle motion. This periodic action significantly reduces power consumption compared to continuous OBD monitoring while maintaining sufficient accuracy for usage tracking purposes.
Solution Approach 2:
The system uses the vehicle's own vibration characteristics as the measurement source, eliminating the need for external power-intensive OBD devices. The vibration sensor leverages the natural motion of the vehicle itself, requiring minimal additional power while providing accurate usage data without draining the vehicle battery.
3Measurement precision
If GPS-based tracking is used to determine vehicle usage, then measurement accuracy is improved, but device complexity and power consumption increase
Solution Approach 1:
The patent extracts the essential measurement function from complex GPS-based systems. Instead of using full GPS hardware and processing capabilities, the system extracts vibration patterns from the vehicle and uses these simplified vibration signatures to determine distance and speed. This extraction approach maintains measurement accuracy while dramatically reducing device complexity.
Solution Approach 2:
The patent replaces expensive, complex GPS hardware with a simple, low-cost vibration sensor. The vibration sensor is a inexpensive component that can be easily attached to the vehicle, providing accurate measurements without the high cost and complexity of GPS receivers. The system uses disposable-like simplicity in its sensing approach.
4Ease of operation
If smartphone-based tracking is used, then ease of operation is improved, but reliability decreases when smartphone is not present
Solution Approach 1:
The patent segments the tracking system into two independent parts: a vibration sensor that continuously monitors vehicle usage and a smartphone that processes data and provides user interface. The sensor operates autonomously without requiring the smartphone to be present, ensuring reliability. When the smartphone is available, it receives and processes the vibration data, maintaining ease of operation. This segmentation resolves the contradiction by making the tracking function independent of smartphone presence.
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
This approach provides increased accuracy, reduces power consumption, and eliminates the need for ongoing GPS usage, offering a simpler, less expensive, and more reliable method for tracking vehicle usage, including distinguishing between different road types and modes of travel.
Implementation Method 1
a vehicle-installed device senses vibration in a vehicle, and based on this sensed vibration, determines usage of the vehicle
Data Source
AI summary
An approach to determining vehicle usage makes use of a sensor that provides a vibration signal associated with the vehicle, and that vibration signal is used to infer usage. Usage can include distance traveled, optionally associated with particular ranges of speed or road type. In a calibration phase, auxiliary measurements, for instance based on GPS signals, are used to determine a relationship between the vibration signal and usage. In a monitoring phase, the determined relationship is used to infer usage from the vibration signal.