FAULT DIAGNOSIS SYSTEM AND FAULT DIAGNOSIS METHOD FOR WIRELESS NETWORK

摘要

PROBLEM TO BE SOLVED: To provide a fault diagnosis system for a wireless network and method thereof in which a factor of the occurrence of communication failure can be determined, while continuing requested communication, in inexpensive and simple configuration.;SOLUTION: A plurality of wireless nodes constituting a wireless network 1 are provided, and the plurality of wireless nodes repeat an awake state and a dose state synchronously with each other. If the communication failure occurs within a predetermined area 3, an object node 4 existent within the predetermined area 3 detects that communication with peripheral wireless nodes is disabled, and switches a radio channel from a communication channel to a normality confirmation channel for confirming normality of the object node 4. A peripheral node 5 that exists outside the predetermined area 3 and is disabled from communicating with the object node 4, switches a radio channel from the communication channel to the normality confirmation channel during the dose state, performs normality confirmation upon the object node 4, and determines whether the communication failure is caused by disturbance.;COPYRIGHT: (C)2008,JPO&INPIT