Data interface for Cloud Markus Jung, IoT Solution Lab Software R&D Center Samsung Electronics

Data interface for Cloud Use Cases Actuation on devices through cloud-based applications Data collection of sensor data Cloud (CI server + RD + HTTP- CoAP proxy + Cloud storage) CoAP over TCP/TLS HTTP(REST) App to control device Device 1 Device 2 CoAP over TCP/TLS * CI server: Cloud Interface server * RD: Resource directory

Function Device to Server (Storing sensor data to cloud) Devices can store sensor data to cloud storage. Devices connect to CI(Cloud Interface) server through CoAP over TCP. CI server acts as RD to devices. CI server relay RD register message to RD. CI server observe devices and store sensor data to Cloud storage when devices send notifications Server to Device (Actuation on devices through cloud) Server can actuate devices through HTTP PUT method. Server send HTTP PUT method to Cloud (HTTP-CoAP proxy server) to actuate devices HTTP-CoAP proxy server send CoAP PUT method to devices through CoAP over TCP/TLS.

Flow diagram (D2S) DeviceCloud Interface server Cloud Storage Register to RD GET / Observe Notification CoAP over TCP HTTP Notification Store to Storage RD Register to RD

Flow diagram (S2D) ServerHTTP-CoAP proxy Device1 Actuate on device 1 HTTP CoAP over TCP Actuate on device 1 OK RD Get device1 location from RD CI server OK Actuate on device 1 OK

Data Interface for Cloud Schedule Schedule Feature Feature complete Code Enhancement (Compliant Test Start) CoAP over TCP/TLS library (based on draft 03)31/07 Cloud Interface server30/09 HTTP-CoAP proxy for Cloud30/09