This paper illustrates how the adoption of techniques typical of artificial intelligence ( AI) could improve the performance of monitoring and control systems (MCSs). Traditional MCSs are designed according to a three...
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This paper illustrates how the adoption of techniques typical of artificial intelligence ( AI) could improve the performance of monitoring and control systems (MCSs). Traditional MCSs are designed according to a three-level architectural pattern in which intelligent devices are usually devoted to evaluate whether the data acquired by a set of sensors could be interpreted as anomalous or not. Possible mistakes in the evaluation process, due to faulty sensors or external factors, can cause the generation of undesirable false alarms. To solve this problem, the traditional three-tier architecture of MCSs has been extended with a fourth level, named the correlation level, where an intelligent module, usually a knowledge-based system, collects the local interpretations made by each evaluation device, building a global view of the monitored field. In this way, possible local mistakes are identified by the comparison with other local interpretations.
This paper presents the concept or human-centered Industrial controlsystems (ICSs) that employ network-based controllers interconnected with business systems. Seamless communication and computing are key issues for e...
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ISBN:
(纸本)9784907764302
This paper presents the concept or human-centered Industrial controlsystems (ICSs) that employ network-based controllers interconnected with business systems. Seamless communication and computing are key issues for enabling remote operations of human-centered interfaces, from any location, as well as information sharing. in addition, the flexible reconfiguration of field devices contributes to the continual improvement of manufacturing processes.
This paper presents the concept of human-centered industrial controlsystems (ICSs) that employ network-based controllers interconnected with business systems. Seamless communication and computing are key issues for e...
详细信息
ISBN:
(纸本)9784907764296
This paper presents the concept of human-centered industrial controlsystems (ICSs) that employ network-based controllers interconnected with business systems. Seamless communication and computing are key issues for enabling remote operations of human-centered interfaces, from any location, as well as information sharing. In addition, the flexible reconfiguration of field devices contributes to the continual improvement of manufacturing processes.
Energy use in homes represents 21% of US total energy demand in 2004. Managing this sector is an important priority for addressing global warming, conserving resources and improving energy security. Much energy is was...
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ISBN:
(纸本)1424403510
Energy use in homes represents 21% of US total energy demand in 2004. Managing this sector is an important priority for addressing global warming, conserving resources and improving energy security. Much energy is wasted in delivering energy services not actually used by residents. Two examples include heating/cooling and lighting of unoccupied houses and rooms, and overheating or overcooling to make up for temperature variations. IT-enabled monitoring and control technologies have played an important role in eliminating similar kinds of inefficiencies in other sectors, so it is natural to think that these systems could have an important role in the home as well. The technology level of energy control in most homes is at least 20 years old, with simple programmable thermostats still in only about a quarter of US homes. Networked thermostats, power meters and switches, and zone heating are technologies that can provide information on energy use and allow it to be controlled for distribution only when needed. In addition to direct energy savings, there is also a demand to reduce indirect needs for energy infrastructure through peak shifting, or redistributing of electricity demand more evenly throughout the day. In addition to surveying these energy management issues, this article also relates the experience of a pilot project setting up monitoring/controlsystems in three Sacramento homes. The design specifications of these systems combine capabilities for web-based monitoring and control and peak shifting via precooling, and load shedding. The pilot has shown that such a monitoring and control system satisfying the design parameters can be implemented via mainly off-the-shelf parts. Much work remains to be done however, to develop low-cost user friendly systems attractive to typical homeowners.
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