Magnetometer-Triggered Tire Pressure Detection
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Solution Overview
Problem
Existing tire monitoring systems for vehicles consume high power, leading to low usage due to standby mode and lack of comprehensive data collection across multiple vehicles, often resulting in neglected maintenance and potential safety risks.
Innovation Solution
A device and assembly with a master unit and slave units using low-power wireless communication and a magnetometer to detect tire parameters like pressure, activating only when vehicles approach, allowing for efficient data collection and transmission with minimal power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous power supply is provided to electronic components for monitoring tire parameters, then measurement and analysis operations can be performed continuously, but power consumption increases significantly
Solution Approach 1:
The system activates electronic components only during periodic intervals when a vehicle is detected by the magnetometer, rather than maintaining continuous operation. The control unit switches between active state (when vehicle present) and standby state (when no vehicle), enabling measurement operations to be performed periodically rather than continuously, thus resolving the contradiction between productivity and power consumption
Solution Approach 2:
The magnetometer automatically detects the presence of a vehicle and triggers the activation of the control unit and electronic components without requiring manual intervention. The system serves itself by using the magnetometer's detection capability to autonomously determine when to enter or exit standby mode, optimizing power consumption based on actual operational needs
2Extent of automation
If tire monitoring systems are installed in vehicles, then tire parameters can be measured automatically, but the systems are not used regularly due to high power consumption
Solution Approach 1:
The magnetometer serves as an intermediary device that detects vehicle presence and mediates the activation of the control unit and electronic components. This intermediary mechanism enables automatic measurement to be triggered only when needed (when a vehicle is present), rather than requiring continuous operation, thus maintaining automation while reducing power consumption
Solution Approach 2:
The system performs automatic measurement operations periodically when vehicles are detected, rather than maintaining continuous automated monitoring. The control unit transitions between active measurement mode and standby mode based on vehicle presence, allowing automatic measurement functionality to be preserved while significantly reducing overall power consumption
3Device complexity
If isolated systems process data exclusively locally, then data processing is simple, but users cannot gather broader information across multiple vehicles
Solution Approach 1:
The system merges local data processing capabilities with remote data transmission functionality. The control unit processes data locally and then transmits it to a remote server, combining the advantages of simple local processing with the benefits of centralized data aggregation across multiple vehicles, thus resolving the contradiction between device complexity and information gathering capability
Solution Approach 2:
The system adds a remote dimension to local data processing by transmitting data to a remote server. This creates a multi-dimensional data architecture where data is processed locally at the device level and then aggregated remotely across the fleet, enabling broader information gathering without significantly increasing the complexity of individual device processing
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
Enables automatic, low-power tire parameter detection and maintenance intervention only when necessary, providing reliable and cost-effective monitoring of tire conditions across multiple vehicles.
Implementation Method 1
a magnetometer (35) for the detection of the transit of a vehicle (21)
Data Source
Figure 1~2
Figure 3~4
AI summary
A device for detecting tire parameters of transiting vehicles, comprising an electronic unit for processing radio signals that carry measurements of at least one parameter of at least one tire of a vehicle, such as the pressure, characterized in that it comprises furthermore a detector of the transit of vehicles for the activation of the processing of the radio signals.