| 摘要 |
PROBLEM TO BE SOLVED: To give direction notification for showing the way to a communicable zone when the present location gets out of the communicable zone at or below a certain speed (low speed) while communicating using a radio communication apparatus having radio mounted therein.SOLUTION: A radio communication apparatus having a function to perform radio communication comprises: a photographing unit which can photograph the circumference; a communication zone in/out detection unit which detects whether the present location is within the communication zone of radio communication; a movement vector arithmetic unit which, on the basis of comparison between a first image photographed by the photographing unit when the communication zone in/out detection unit determined that the present location is within the communication zone and a second image photographed by the photographing unit when the communication zone in/out detection unit determined that the present location has moved out of the communication zone, calculates a direction of movement from the timing at which the first image was photographed to the timing at which the second image was photographed; and a notification unit which, on the basis of the direction of movement, gives notification for guiding a near field radio communication apparatus from outside the communication zone into the inside of the communication zone. |
