| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a detection system detecting the real-time state of a radio communication in a mobile station. <P>SOLUTION: The detection system 12 has: a receiving-field detecting storage 43 detecting receiving-field information 43a from a radio signal and storing positional information 41a and the receiving-field information 43a by a correspondence; and a storage 45 storing fixed-position information 45a and set receiving-field information 45b by the correspondence. The detecting system 12 further includes: a comparator 47 computing the fixed-position information 45a the same as the positional information 41a or the set receiving-field information 45b corresponding to the fixed-position information 45a approximating to the positional information 41a from the storage 45, computing the receiving-field information 43a corresponding to the positional information 41a and comparing the set receiving-field information 45b and the receiving-field information 43a; and a controller 49 detecting the malfunction of a receiver 35 when the set receiving-field information 45b and the receiving-field information 43a have a difference greater than a threshold value, based on the result of a comparison by the comparator 47. <P>COPYRIGHT: (C)2011,JPO&INPIT |
