| 摘要 |
PROBLEM TO BE SOLVED: To quickly analyze connection errors, software bugs, abnormal operations, etc., caused after constructing an interphone system for a complex housing. SOLUTION: This system comprises room master units 1a, 1b placed in each lining room of the complex housing, an custodian room master unit 3 placed in the custodian room of the complex housing, an entrance unit 5 placed at the entrance of the complex housing, and a control unit 7 for controlling the communication among the living room master units 1a, 1b, the custodian room master unit 3 and the main entrance unit 5. At least one of the living room master units 1a, 1b, the custodian room master unit 3, the main entrance unit 5 and the control unit 7 has RAM 11a, 11b to 31, 51, 71 with a log file 14 such as a processing history, an error history and a communication history stored therein. Furthermore, a server personal computer 8 connected to the control unit 7 via a network NW has a function for periodically acquiring the log file 14. COPYRIGHT: (C)2004,JPO
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