Vehicle Tire Pressure Monitoring Using Image Analysis
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Solution Overview
Problem
Current tire pressure monitoring systems consume excessive battery power due to continuous data collection and transmission, leading to inefficient energy use.
Innovation Solution
A system that uses image analysis to determine when tire pressure sensors should switch between high and low power states by comparing images of tires taken upon vehicle shutdown and startup, actuating sensors only when tire position or shape changes are detected, thereby optimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous data collection and transmission is performed, then monitoring reliability is improved, but battery power consumption increases
Solution Approach 1:
The system performs data collection and transmission periodically based on detected events rather than continuously. The sensor remains in low-power mode and only activates for data collection when specific conditions are met (tire pressure threshold exceeded or image changes detected), thereby reducing overall energy consumption while maintaining monitoring reliability through event-driven periodic operations
Solution Approach 2:
The system uses image processing capabilities to automatically detect tire conditions and trigger data collection only when necessary. The image sensor captures tire images, processes them to detect changes in tire shape or position, and autonomously decides when activation is needed, eliminating the need for continuous monitoring and reducing power consumption
2Loss of energy
If image analysis is used to trigger sensor activation, then energy efficiency is improved, but system complexity increases
Solution Approach 1:
The system combines the image sensor, image processing unit, and tire pressure sensor into an integrated monitoring system. The image processing unit serves dual purposes: it processes images for tire condition analysis and simultaneously triggers the pressure sensor activation, merging multiple functions into a unified system that reduces overall complexity despite adding intelligence
Solution Approach 2:
The image processing unit acts as an intermediary between the passive image sensor and the active tire pressure sensor. It processes images to detect tire conditions and mediates the decision to activate the pressure sensor, thereby reducing direct system complexity while enabling intelligent, energy-efficient operation through intermediate processing
Data Source
AI summary
A system includes a computer having a processor and a memory storing instructions executable by the processor to acquire a first image of a tire of a vehicle upon shutdown of the vehicle. The instructions include instruction to then, upon startup of the vehicle, and in response to determining that the tire is unmoved since the shutdown and, in response, acquire a second image of the tire. The instructions include instruction to actuate a component of the vehicle in response to determining that the first image is different that the second image.