| 摘要 |
PROBLEM TO BE SOLVED: To provide a terminal designation system that is able to designate a desired terminal by simple operation at a terminal with general-purpose structure.SOLUTION: An operation terminal 1 and designated terminals 2 constituting a terminal designation system 10 are capable of data communication with each other, and a designation object terminal 2 is determined by operation of making the terminal 1 perform circular motion centering on the designation object terminal 2. When an operation detection unit 15 detects that circular motion is applied to the terminal 1 on the basis of acceleration obtained by an acceleration sensor unit 14, a sound wave transmission unit 12 transmits a sound wave on which sound wave information is set with a prescribed interval, a sound wave analysis unit 23 obtains a reception interval on the basis of the sound wave information from the sound wave received by a sound wave receiving unit 22, and a terminal determination unit 16 determines a terminal 2 about which the difference between the transmission interval and the reception interval is small as the designation object. |
