| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a positioning device and method for measuring positional relationship in a planar direction to provide the notification of the measured positional relationship without using an antenna array. <P>SOLUTION: A positioning device 100 includes an antenna 140 which is any one of first, second and third antennas; an acquiring part 112 which acquires first and second distances measured by radio communication, among the first distance between the first and second antennas, the second distance between the first and third antennas, and a third distance between the second and the third antennas; a measuring part 113 which based on the first to third distances calculates interior angles of a triangle formed by lines connecting the antennas to measure positional relationships of the antennas; and a determination part 114 which provides the notification of the relationships if both a first interior angle at the second antenna and a second interior angle at the third antenna are not obtuse angles. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
