Figure 2.

A networked module/skin cell with local processing capabilities, see Figure 1, can realize an event generator (EG) and an event packet generator (EPG) representing events in the SoDP; a sensor with an $ID$ is sampled and its value $x\left(t_k\right)$ is compared with the value $x\left(t_{{\mathrm{K}}_{i-1}}\right)$ of the previous event ${\mathbf{e}}_{i-1}$; if the absolute difference is below $\delta$, then the next sample is acquired, otherwise a new event ${\mathbf{e}}_i$ is generated with a sensor value $x\left(t_{{\mathrm{K}}_i}\right)$; the EPG creates an event packet containing the $ID$ of the sensor and the sensor value $x\left(t_{{\mathrm{K}}_i}\right)$; the red background indicates components that are strictly clock-driven, and the green background represents components that are event-driven.