Fecha de publicación: 08/11/2018 Fuente: Wipo "IOT" An IoT system is disclosed. More specifically, the present invention relates to: a lighting device having a thing relay function for controlling a thing by using a lighting instrument having a socket, which is provided at a home or an office and the like; and an IoT system including the same. According to an embodiment of the present invention, a plurality of electronic devices, which are controlled by a conventional IR signal, can be relayed and controlled by providing a means for generating and transmitting an IR signal for controlling electronic devices within the lighting device having the socket part which is provided at each home, office and the like.