Patent ID: 6308111
Filing Date: 2001-10-23
Classification: G07F

Abstract:
An information collecting system comprising:a central management computer for collecting and managing information through a personal handyphone system PHS base station and a telephone line; anda plurality of information collection target machines serving as target machines from which information is collected by said central management computer and has a PHS terminal apparatus,wherein some of said plurality of target machines are master units to which outside line telephone numbers and extension telephone numbers are assigned, and each of said master units can perform outside line radio communication with said PHS base station and extension radio communication with other target machines belonging to said master unit,said remaining target machines are subsidiary units to which extension telephone numbers are respectively assigned, and each of said subsidiary units can perform extension radio communication with only a specific master unit, andpieces of information stored in subsidiary units belonging to said specific master unit are sequentially stored from said subsidiary units on a lower layer to a subsidiary unit on an upper layer by extension radio communication, together with pieces of identification information identifying said subsidiary units from which the pieces of information are sent, the pieces of information being finally stored in said specific master unit and collected by said central management computer through said PHS base station and the telephone line by outside line radio communication.