IIC Journal of Innovation 7th Edition | Page 89

Digital Twin – Modeling Interrelated Devices Figure 2 Modeling digital twin for a water pump station Let’s create the basic JSON representation for each device and then the pump station. First, the JSON digital twin representation for the Tank device (Figure 3). As can be seen, the JSON representation of the tank has some static properties (tags) that rarely change (name, location, tank height, etc.), commands (desired) none for the tank and some telemetry properties (reported) like outside temperature, water level, incoming water flow, etc. GUID#1 is a generated unique ID that identifies this device. Figure 3 Tank JSON Digital Twin model - 88 - March 2018