초록 ▼

The data communication device is designed for a towed vehicle having wheels rear lights, brake lights, turn signal lightsand an anti-lock braking system, that is drawn by a motor vehicle. This data communication device includes an electrical cable connection (19) for supplying electrical power from

The data communication device is designed for a towed vehicle having wheels rear lights, brake lights, turn signal lightsand an anti-lock braking system, that is drawn by a motor vehicle. This data communication device includes an electrical cable connection (19) for supplying electrical power from the towing vehicle to the rear, brake and turn signal lights; an electrical pulse generator and electrical power supply circuit (14) for producing direct current from wheel motion of the towed vehicle; a rechargeable battery (15) to provide a supplementary direct current in addition to this direct current, when necessary; a controller (10) for the anti-lock braking system including a data producing unit (7) for producing data including mileage covered by the towed vehicle and a wireless transponder (6) operating the gigahertz range for transmission and reception of data from the data producing unit to and from an external data transmitting and receiving station (1).

대표청구항 ▼

[ We claim:] [1.] A data communication device for a towed vehicle having wheels, said data communication device comprisingan electrical cable connection (19) for supplying electrical power from a towing vehicle pulling said towed vehicle;an electrical power supply circuit for supplying a direct curr

[ We claim:] [1.] A data communication device for a towed vehicle having wheels, said data communication device comprisingan electrical cable connection (19) for supplying electrical power from a towing vehicle pulling said towed vehicle;an electrical power supply circuit for supplying a direct current in the towed vehicle, wherein said electrical power supply circuit is located inside said towed vehicle and includes a chargeable battery (15), at least one pulse generator (9) for producing electrical pulses from motion of at least one of said wheels (8) of the towed vehicle and a rectifier for said electrical pulses to thus produce said direct current;a data producing unit (7) for producing data including mileage covered by said towed vehicle, said data producing unit (7) being connected electrically to the electrical power supply circuit inside the towed vehicle so as to be able to receive said direct current therefrom, said data producing unit including analysis means (11) for processing said pulses from said at least one pulse generator (9) for determination of said mileage covered by said towed vehicle; andmeans (6) for wireless transmission and wireless reception of said data from said data producing unit (7) to and from an external data transmitting and receiving station (1) located outside said towed vehicle, said means (6) for wireless transmission and wireless reception consisting of a transponder operating in the gigahertz range in said towed vehicle.