| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a base station device which automatically diagnoses presence/absence of abnormalities of motions without increasing costs and size. <P>SOLUTION: A base station 10 includes: radio parts 11a-11n which transmit/receive a radio signal to/from a terminal 20; a delay time measurement part 16 which measures delay time after the radio signal is transmitted to the terminal 20 until a radio signal as a response to the radio signal is received by the radio parts 11a-11n; an RSSI measurement part 15 which measures an RSSI showing the receiving state of the radio signal to be received by the radio parts 11a-11n; and a normality diagnostic part 18 which determines the presence/absence of the abnormalities in the radio parts 11a-11n by determining whether relation between the measurement result of the delay time measurement part 16 and the measurement result of the RSSI measurement part 15 is within a predetermined normal range. <P>COPYRIGHT: (C)2011,JPO&INPIT |
