TPMS Sensor Protocol Adaptation via Burst Pattern Analysis
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Solution Overview
Problem
Existing tire pressure monitoring systems require manual configuration for different vehicle manufacturers and protocols, leading to inefficiencies and increased costs due to the need for multiple protocols and potential errors in transmission.
Innovation Solution
A tire pressure monitoring sensor that learns from transmissions from other sensors to identify a single protocol or reduced set of protocols, allowing it to adapt and transmit data efficiently across various vehicle manufacturers, using a sensing device, transmission buffer, transmitter circuit, receiver circuit, and control circuit to select and alter burst patterns based on detected motion and burst patterns from other sensors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple communication protocols are supported for different vehicle manufacturers, then compatibility with various vehicles is improved, but device complexity and power consumption increase
Solution Approach 1:
The sensor automatically detects the vehicle manufacturer and selects the appropriate communication protocol without requiring manual configuration. The system self-configures by receiving identifier information, determining the manufacturer, and autonomously setting the correct protocol, thereby eliminating the need for users to manually manage multiple protocols.
Solution Approach 2:
The sensor pre-loads multiple communication protocols into its memory before operation. When the sensor is activated, it has all necessary protocols readily available and can quickly switch between them based on the detected vehicle manufacturer, avoiding the need for real-time protocol negotiation or configuration.
2Reliability
If manual configuration of tire pressure monitoring systems is required, then protocol accuracy can be ensured, but user time and operational complexity increase
Solution Approach 1:
The system receives feedback in the form of identifier information from the vehicle's receiver about which communication protocol the vehicle uses. Based on this feedback, the sensor automatically configures itself with the correct protocol, ensuring transmission accuracy without requiring manual user input or configuration steps.
3Reliability
If sensors are pre-configured with specific manufacturer protocols, then transmission reliability is improved, but adaptability to different vehicles decreases
Solution Approach 1:
The sensor dynamically adapts its communication protocol based on the detected vehicle manufacturer. Instead of being statically configured for a single manufacturer, the sensor can change its protocol settings in real-time according to the vehicle it is installed in, maintaining transmission reliability while achieving versatility across different manufacturers.
4Adaptability or versatility
If multiple communication formats are transmitted simultaneously, then compatibility is improved, but power consumption and data transmission efficiency worsen
Solution Approach 1:
The system extracts and transmits only the specific communication protocol that matches the vehicle manufacturer's requirements. By removing unnecessary protocols from the transmission mix, the system maintains compatibility with the target vehicle while significantly reducing power consumption and improving data transmission efficiency compared to transmitting all possible protocols simultaneously.
Data Source
AI summary
Received acceleration or motion information are analyzed and when the analysis of this information indicates that motion or acceleration is detected, received burst patterns from the other sensors are analyzed. Based upon analyzing the detected burst patterns from the other sensors, a first burst pattern is selectively altered to transmit according to a single communication format, the single format being for a single vehicle manufacturer.