Abstract: The invention relates to a wireless tire pressure monitoring system provided on a tire or a rim of a vehicle. The system includes: a magnetometer for measuring a magnetic flux value; a pressure sensor for measuring a pressure value within the tire; a controller for receiving the magnetic flux value measured by the magnetometer and the pressure value measured by the pressure sensor, and determining whether the magnetic flux value fluctuates; and a wireless signal transmitter in signal communication with the controller, and controlled by the controller, wherein when the controller determines that the magnetic flux value fluctuates, the controller activates the wireless signal transmitter or raises the transmitting times per minute of the wireless signal transmitter and the wireless signal transmitter transmits a signal which represents the pressure value. The invention also relates to a method for operating a wireless tire pressure monitoring system.

Abstract: This invention relates to a transmitter for a wireless tire pressure monitoring system. The transmitter includes: an insulating housing including a top and a sidewall extending downward from the periphery of the top, wherein the interior surface of the top and the interior surface of the sidewall are configured to define a cavity; an antenna made of metal wire, wherein the antenna is provided on the top and the sidewall of the insulating housing and continuously extends along the top and the sidewall; and a wireless signal transmission assembly covered by the insulating housing and electrically connected to the antenna.