| 摘要 |
PROBLEM TO BE SOLVED: To provide a positioning object terminal, a positioning node, and a positioning system that can make a range where positioning is enabled larger.SOLUTION: A positioning object terminal according to one embodiment comprises a radio communication unit and a positioning calculation unit. The radio communication unit has a connection function and a time synchronization function with a positioning node, and functions as a master of time synchronization. The positioning calculation unit performs positioning calculation on the basis of the reception time of a sound wave communicated with the positioning node.SELECTED DRAWING: Figure 1 |
