| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio communication device capable of suppressing elongation of information distribution time even when a plurality of communication terminals exist in a preset area.SOLUTION: A radio communication device comprises an antenna unit, a radio communication unit, a calculation unit, and an antenna control unit. The antenna unit receives radio signals from a plurality of radio communication terminals existing in a communication area, and can change its orientation. The radio communication unit acquires position information included in a radio signal. The calculation unit calculates a movement direction and movement speed of a radio communication terminal, on the basis of the position information; and calculates residual time required for the radio communication terminal passing through the communication area, on the basis of the position information, movement direction, and movement speed. The antenna control unit changes the orientation of the antenna unit from a set first orientation to a second orientation in which a radio communication terminal having residual time shorter than that of the others exists. |
