How TPMS receiver software combines duty-cycled RF packets, temperature compensation, and Kalman-filtered pressure estimates from four to six independent battery-powered nodes.
TPMS sensors typically transmit every 60 to 90 seconds at rest and accelerate to a few seconds during rapid pressure loss events. The receiver firmware must model this adaptive duty cycle, distinguishing an intentionally sparse transmission schedule from a genuine sensor dropout or jamming attempt, without triggering false dashboard warnings.
Because raw RF packets arrive irregularly and are corrupted by multipath fading inside the wheel well, the fusion engine runs a lightweight Kalman filter per wheel, treating each packet as a noisy measurement update and using a physical tire thermodynamics model as the prediction step between transmissions.