| dc.description.abstract | Technologies and, in particular sensors, permeate more and more application sectors. From
energy management, to the factories one, to houses, environments, infrastructure, and building
monitoring, to healthcare and traceability systems, sensors are more and more widespread in our daily
life. In the growing context of the Internet of Things capabilities to acquire magnitudes of interest, to
elaborate and to communicate data is required to these technologies. These capabilities of acquisition,
elaboration, and communication can be integrated on a unique device, a smart sensor, which
integrates the sensible element with a simple programmable logic device, capable of managing
elaboration and communication.
An efficient implementation of communication is required to these technologies, in order to
better exploit the available bandwidth, minimizing energy consumption. Moreover, these devices
have to be easily interchangeable (plug and play) in such a way that they could be easily usable.
Nowadays, smart sensors available on the market reveal several problems such as
programming complexity, for which depth knowledge is required, and limited software porting
capability.
The family of standards IEEE 1451 is written with the aim to define a set of common
communication interfaces. These documents come from the Institute of Electric and Electronic
Engineers (IEEE) with the aim to create a standard interface which allows devices interoperability
produced from different manufacturers, but it is not concerned with problems related to bandwidth,
management, elaboration and programming. For this family of standards, now under review, it is
expected a further development, with the aim to renew applicable standards, and to add new layers
of standardization.
The draft of the ISO/IEC/IEEE 21451.001 proposes to solve problems related to the
bandwidth and the elaboration management, relocating a part of processing in the point of acquisition,
taking advantage of elaboration capabilities of smart sensors. This proposal is based on a Real Time
Segmentation and Labeling algorithm, a new sampling technique, which allows to reduce the high
number of samples to be transferred, with the same information content. This algorithm returns a data
structure, according to which the draft expects two elaboration layers: a first layer, in order to
elaborate basic information of the signal processing, and a second layer, for more complex
elaboration. [edited by author] | it_IT |
