Fuente: Wipo "IOT" An operation method for a server device is disclosed. An operation method for a server device, according to one embodiment of the present disclosure may comprise: an operation of receiving an internet protocol (IP) address of an IoT device from the IoT device; an operation of identifying another IoT device having the same IP address as the IP address of the IoT device; an operation of creating a link between the IoT device and the another IoT device when there is no link created between the IoT device and the another IoT device; an operation of increasing the weight of the link created between the IoT device and the another IoT device when there is the link created between the IoT device and the another IoT device; and an operation of generating data on IoT devices for each household on the basis of the weight of the created link.