Fecha de publicación: 14/10/2021 Fuente: Wipo "IOT" According to an embodiment of the present invention, an Internet of Things (IoT) device control and detection system comprises: an IoT devices; a user device that provides state information of the IoT device; a slave RS-485 communication module that receives a control signal from a server and transmits it to the IoT device; a master RS485 communication module that receives the state signal from the server and transmits it to the user device through a direct digital controller (DDC); and a server transmitting the control signal to the slave RS-485 communication module corresponding to the master RS-485 communication module. Therefore, the Internet of Things (IoT) device control and detection system increases facility management stability and convenience. COPYRIGHT KIPO 2022