Spatio-temporal constraints in fieldbus: Requirements and current solutions |
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| Affiliation: | 1. CAS Engineering Laboratory for Yellow River Delta Modern Agriculture, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;2. Shandong Dongying Institute of Geographic Sciences, Dongying 257000, China;3. University of Chinese Academy of Sciences, Beijing 100049, China;1. MedStar Heart and Vascular Institute, Washington, DC;2. University of Montréal, Montréal, Québec, Canada;3. University of Pennsylvania Health System, Philadelphia, Pennsylvania;4. Columbia University Medical Center/New York Presbyterian Hospital, New York, New York;5. Cleveland Clinic, Cleveland, Ohio;6. Cedars-Sinai Medical Center, Los Angeles, California;7. New York University Langone Medical Center, New York, New York;8. Barnes-Jewish Hospital at Washington University Medical Center, St. Louis, Missouri;9. Emory University, Atlanta, Georgia;10. Stanford University, Stanford, California;11. University of Virginia Health System, Charlottesville, Virginia;12. Mayo Clinic, Rochester, Minnesota;13. Baylor Scott & White Health, Plano, Texas;14. Georgetown University, Washington, DC |
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| Abstract: | Fieldbus are used to interconnect devices at the process level. At this level, temporal and spatial consistencies are of prime importance. The communication must provide ways to comply with these requirements.In this paper, we explain the consistency requirements and show how they are supported in existing fieldbus proposals. This study shows that only FIP takes them into account, although partially, while the other proposals leave it to the application. Finally, we show how these requirements may be satisfied in a simple and efficient manner with minor modification and appropriate use of the FIP mechanisms. |
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