Tire Pressure Monitoring Signal Control for Uneven Battery Drain
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Solution Overview
Problem
Existing tire pressure detectors waste electricity due to fixed signal ranges, leading to uneven energy consumption and reduced service life, especially for detectors closer to the receiving device.
Innovation Solution
A tire pressure monitoring device with a dynamic energy-saving mechanism that adjusts signal strength, receiving sensitivity, and data update times based on the distance between detectors and the main control receiver using duplex communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed signal range is used for all tire pressure detectors, then all detectors can transmit signals to the receiving device, but detectors closer to the receiving device waste excessive energy
Solution Approach 1:
The patent applies local quality by allowing each tire pressure detector to independently adjust its signal transmission parameters based on its specific distance from the receiving device. Detectors closer to the receiving device use lower transmit power and lower data update frequencies, while detectors farther away use higher power and more frequent updates, optimizing energy consumption for each local position
Solution Approach 2:
The patent implements dynamics by making the signal transmission parameters (transmit power, data update frequency) variable rather than fixed. The controlling device receives feedback from each detector and dynamically adjusts transmission parameters based on signal quality and distance, enabling the system to adapt to changing conditions and optimize energy usage
2Reliability
If high transmit power is used by all tire pressure detectors, then signals can be received reliably, but the service life of detectors is reduced due to excessive energy consumption
Solution Approach 1:
The patent applies parameter changes by adjusting key transmission parameters (transmit power, data update frequency) based on the detector's distance from the receiving device and signal quality feedback. This allows the system to maintain reliable communication while minimizing energy consumption, thereby extending the service life of battery-powered detectors
3Reliability
If uniform data update frequency is used for all detectors, then data consistency is maintained, but energy is wasted on frequent updates for detectors that do not require it
Solution Approach 1:
The patent applies local quality by allowing each detector to operate at its own optimal data update frequency based on its position and signal conditions. The controlling device manages data consistency by receiving and processing data from detectors with different update frequencies, ensuring that the overall system maintains data integrity while allowing local optimization of energy consumption
Data Source
AI summary
A tire pressure monitoring device with a dynamic energy-saving mechanism and an energy-saving method of tire pressure monitoring are provided. The tire pressure monitoring device is installed in a car and includes a plurality of tire pressure detectors and a main control receiver. Through the mutual transmission of signal and information between each tire pressure detector and the main control receiver, the main control receiver or each tire pressure detector can directly control and change the transmission range of each tire pressure detector. The signal range can match the distance between the tire pressure detector and the main control receiver, the closer the distance from the tire pressure detector to the main control receiver is, the smaller the signal range is.