Patent ID: 6794993
Filing Date: 2004-09-21
Classification: B60C

Abstract:
An arrangement for transmitting signals from a device (3) for monitoring the tire pressure in vehicle wheels (1), being arranged in the tire, and comprisinga pressure sensor arranged for measuring the tire pressure and generating an electric pressure signal, a control circuit, a battery as power source, and a transmitter with a sending antenna for transmitting the measured pressure signal as a radio-frequency (RF) signal under the control of the control circuit to a central evaluation and control unit (8), which is arranged in the vehicle (2) and which is connected to receiving antennas (4), to which individual wheels (1) or groups of wheels (1) of the vehicle (2) are allocated, via a RF receiver which comprises a demodulator and transforms the received RF signals to low-frequency (LF) signals, characterized in that there is arranged, at each receiving antenna (4), a single-channel RF receiver (5) with demodulator (6) so that low frequency signals instead of RF signals are transmitted via unshielded electric lines (7).