Sensor unit for detection of rapid tire pressure loss

A sensor unit for detection of rapid pressure loss in a tire, the sensor unit being attached to the tire, the sensor unit comprising:

• an integrated circuit;
• a microcontroller unit in electronic communication with the integrated circuit;
• an antenna in electronic communication with the integrated circuit and transmitting a signal from the sensor unit;
• a power source in electronic communication with the integrated circuit to power the sensor unit;
• a discrete analog component in electronic communication with the integrated circuit and the microcontroller unit, the discrete analog component including:
• an analog pressure sensor to generate a signal of pressure indication;
• a differentiator receiving the signal of pressure indication and calculating a rate of pressure change;
• a level detector storing a threshold value of a rate of pressure change;
• and an interrupt request generated by the level detector when the calculated rate of pressure change exceeds the threshold value, indicating a rapid air loss event;
• and
• whereby the interrupt request is sent from the analog component through the integrated circuit to the microcontroller unit to actuate or interrupt the microcontroller unit.