The advances in the design of embedded systems, availability of tools, and falling fabrication costs allowed for cost-effective migration of the intelligence and control functions to the ﬁeld devices, particularly sensors and actuators. Intelligent sensors combine computing, communication, and sensing functions.
The trend for increased functional complexity of those devices necessitates the use of formal descriptive techniques and supporting tools throughout the design and implementation process. The later part of this report focuses on the Analysis and Design of those issues. It reviews some of the main characteristics of the generic intelligent sensor formal model; subsequently, it discusses an implementation of the model using the CAP language, which was developed speciﬁcally for the design of intelligent sensors. A brief introduction to the language is also provided. The whole development process is illustrated by using an example of a simple distance measuring system comprising an ultrasonic transmitter and two receivers.
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