Fecha de publicación: 25/04/2017 Fuente: Wipo "IOT" The present invention relates to a technique for realizing an open home Internet of things (IoT) service system by using home IoT devices based on various communication protocols and a set-top box IoT home gateway interconnecting the home IoT devices. In particular, the IoT home gateway is installed in a home set-top box in order to allow a plurality of home IoT devices individually following a separate wireless communication technology to be interconnected in a heterogeneous wireless communication (for example, Z-wave, ZigBee, Bluetooth, smart utility network, Wi-Fi), and such IoT home gateway constructs and provides an open application program interface (API) for the home IoT device, an interlocking system among an external operation management server, a home IoT service application, and the home IoT devices, such that an entertainment filed service (for example, personalized TV, smart advertisement, and customized advertisement), a security field service (for example, home monitoring, living-alone elderly person management, and visitor confirmation), a home appliance field service (for example, good management, automatically cleaning, and food purchase), and an energy field service (for example, electricity, city water, and gas management) can be effectively provided. COPYRIGHT KIPO 2017