Magnetic field communication arrangement and method for monitoring the presence of vechicles

摘要

An automotive communication method includes installing a sensor within a vehicle such that the sensor is submerged in a liquid during operation of the vehicle and/or substantially surrounded by a metallic structure during operation of the vehicle. A long wave magnetic signal is transmitted from the sensor. The signal is indicative of a condition sensed by the sensor. The signal is wirelessly received at a controller disposed within the vehicle. Receipt of the signal at the controller is responded to by adjusting a display and/or a setting within the vehicle.

主权项

1. A method of monitoring the presence of vehicles within a predetermined space, said method comprising the steps of:
periodically broadcasting a respective long wave magnetic identification signal from each of a plurality of vehicles, each of the identification signals uniquely identifying the vehicle from which the signal is broadcasted; using a plurality of long wave magnetic signal readers to receive the identification signals from the vehicles, each of the long wave magnetic signal readers being associated with at least one parking space of a plurality of parking spaces within a parking lot; detecting the presence of a vehicle in a parking space in response to the long wave magnetic signal reader associated with the parking space receiving the long wave magnetic identification signal from one of the vehicles; and automatically responding to the received identification signals by recording the identifications of the vehicles in association with each of the portions of the predetermined space and/or transmitting a response signal.