A vehicle communication device includes a plurality of transmitting and
receiving sensors respectively are installed in the front and back side
and the left and right side of a vehicle so as to transmit/receive
driving information to/from neighboring vehicles, a left/right rotation
signal detecting section detects a left or right rotation signal
generated by a driver of the vehicle, a wheel angle detecting section
detects a wheel rotation angle of the vehicle, a central control section
transmits the driving information of the vehicle, including lane change
or increase and reduction in speed, to the neighboring vehicle through
the corresponding transmitting and receiving sensor, when a left or right
rotation signal is detected through the left/right rotation signal
detecting section, the detected wheel rotation angle of the vehicle
changes more than a predetermined angle, or the detected speed of the
vehicle changes more than or less than predetermined speed, and that
outputs positional information of the neighboring vehicle with an alarm
signal, when receiving the lane change or speed change information of the
neighboring vehicle from an arbitrary transmitting and receiving sensor;
and a driver information section that, when receiving the positional
information of the neighboring vehicle with the alarm signal from the
central control section, inform a driver of the information.