POSITION ADJUSTMENT ASSISTANCE DEVICE, POSITION ADJUSTMENT ASSISTANCE SYSTEM, POSITION ADJUSTMENT ASSISTANCE METHOD, AND POSITION ADJUSTMENT ASSISTANCE PROGRAM

摘要

A position adjustment assistance device (10) detects the received-signal strength of a second optical signal (L2) received by an optical wireless communication device (20A). The optical wireless communication device (20A) includes: a transmission unit (21) that transmits a first optical signal (L1); and a reception unit (22) that receives the second optical signal (L2). An output control unit (16) outputs a sound (S) which is in accordance with the received-signal strength.