The invention discloses a magnetic transmission type
tire pressure sensor, a setting tool and a setting method. The
tire pressure sensor comprises a first micro
control unit, a memory unit, a first power supply, a
pressure sensing unit, a
temperature sensing unit, an acceleration sensing unit, a first low-frequency transmission interface and a
magnetic sensing unit. The setting tool comprises a second micro
control unit, an
internal memory unit, a display unit, a magnetic transmitting unit and a second low-frequency transmission interface. The setting method comprises the steps of using the
magnetic sensing unit which is installed in the
tire pressure sensor to receive magnetic
force lines which are transmitted by the magnetic transmitting unit in the setting tool, then converting the received waveforms into communication protocols and storing the communication protocols in the tire
pressure sensor. Therefore, not only can the goal of
wireless transmission be achieved, but also the stability of
signal transmission can be improved, the restriction of radio regulations can be eliminated, the product quality is improved, the
circuit design is simpler, the
electricity is saved and the magnetic transmission type tire
pressure sensor is not restricted by relevant radio regulations.