A survey of available sensor data modeling techniques

In Cyber-physical systems (CPSs), digital computing components control or monitor physical components in real-time. Models for CPS involve digital (discrete) and physical (continuous) elements. The development of accurate models for CPS always is a challenge due-to complexity of the system, fundamental differences in the operation of cyber and physical components, and significant inter-dependencies among these components. Sensors and sensor devices with diverse capabilities and complexities are major physical elements. The major theme of this paper is to present a survey on sensor models and their relationship to realizations of CPS. A technical analysis brings out the gaps of existing sensor description methods mainly in sensor modeling and subsequently underlines the importance to create a comprehensive description of a physical sensor to establish the correctness and validity of such cyber-physical models.