CPC H04L 12/2809 (2013.01) [H04L 41/08 (2013.01)] | 16 Claims |
1. A device network system, wherein
system recognition processing that identifies a device connected by a wired line is performed using a low-frequency signal of a frequency lower than a first frequency used in communication,
a signal of the first frequency is used to transmit predetermined instruction information,
the low-frequency signal includes
first information for connection to a network, and
identification information of a group to which a device to which the low-frequency signal is transmitted belongs, and
the predetermined instruction information is transmitted to a device that
has received the low-frequency signal,
has registered the first information, and
has connected to the network, and
for which participation in the network has been approved.
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