Patent ID: 7142098
Filing Date: 2006-11-28
Classification: B60D

Abstract:
1. A wireless data transfer system for use in a tractor-trailer vehicle to wirelessly transmit data between the tractor and trailer to assist the driver in operating the vehicle, said system comprising: a first communication unit carried on a front side of said trailer adapted to wirelessly send and receive data using a low signal strength infrared ray beam; a second communication unit carried on a rear side of a tractor cab adapted to wirelessly send and receive data with said first communication unit using a low signal strength infrared ray beam; said front side of said trailer and rear side of said tractor cab being spaced apart when coupled together to define a hitching space between said tractor cab and said trailer which allows for relative pivotal movement between them; and, said first and second communication units aligned facing each other across said hitching space to define a communication gap within said hitching space over which data is wirelessly communicated between said first and second communication units, and wherein said low signal strength infrared ray beams are adapted to transmit data effectively only over distance of said communication gap; whereby data may be wirelessly transmitted between said first and second communication units using a low signal strength due to the proximity and alignment of the communication units to avoid interference with similar equipment in adjacent vehicles and to notify the driver about conditions surrounding the trailer.