OPERATION METHOD OF DEVICE MANAGEMENT SYSTEM AND DEVICE INFORMATION RETRIEVAL METHOD IN DEVICE MANAGEMENT SYSTEM

摘要

PROBLEM TO BE SOLVED: To reduce a load of a server device due to transaction concentration.SOLUTION: A gateway unit 1 determined whether there is variation exceeding a predetermined threshold in a device on the basis of key device information acquired from the device, and when it is determined that there is the variation exceeding the threshold, the gateway unit transmits information including the key device information acquired from the device after the variation to a server device 2.