A terminal device management system and a method for detecting a failed terminal device using the system.

摘要

A terminal device management system 1 includes a plurality of terminal device 3 and a remote management apparatus 4 for remotely managing the plurality of terminal devices. The remote management apparatus 4 includes a data receiving section 42, a management table storing section 43 for storing a management table including identifiers for the terminal device 3 which are set to transmit data in a transmission time interval for identifying whether data has been set from the devices or not, a timer section 44 for measuring.a time period during which a line is not connected in the transmission time interval, and a control section 91 for detecting whether or not the time period measured by the timer section reaches a predetermined time period, and for, when it is detected that the predetermined time period is reached, detecting a terminal device 3 the identifier of which in the management table stored in the management table storing section indicates data has not been received therefrom, as a failed terminal device. <IMAGE>