The invention discloses a method for transferring data in
internet of things, an
internet of things system and a corresponding device, and relates to the technical field of
internet of things. The technical problem that in the prior art, development
workload is large on a network side because a
proprietary protocol of industry sensing equipment is not standard is solved. The
system comprises an M2M gateway and a
middleware platform. The M2M gateway is used for receiving data sent by the industry sensing equipment, finding slave protocol configuration information of the industry sensing equipment according to identification of the industry sensing equipment in the data, converting protocol formats and interpretation meaning of the data into protocols which can be recognized by the gateway according to the protocol configuration information, and sending the protocols to an internet of things platform. The
middleware platform is used for analyzing key information from the data transferred from
the internet of things platform, determining the protocol category of the key information according to message
body type of the key information, adding corresponding identification to the certain protocol category, and converting the key information into data of which the protocol formats can be recognized by
enterprise application terminals according to the identification and a preset state
machine.