| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio communication device and a radio communication system which have high power-saving effect.SOLUTION: A radio communication device derives a distance between its own device and a partner device (S102), and determines whether the derived distance is equal to or longer than a predetermined distance which is preset, or not (S103). When it is determined that the derived distance is equal to or longer than the predetermined distance in the step S103 (S103:YES), the radio communication device stops an electric current to mechanisms such as a control unit, a long-distance communication unit, and a peripheral device unit (S107). Then, when the distance to the partner device becomes shorter than the predetermined distance, the radio communication device restarts the electric current to the mechanisms such as the control unit and the others (S108). |
