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Fluidizable bed with occupancy status detection and method of occupancy status detection for a fluidizable bed
专利权人:
发明人:
申请号:
EP13172790.1
公开号:
EP2682085A1
申请日:
2013.06.19
申请国别(地区):
EP
年份:
2014
代理人:
摘要:
A method of detecting a change in occupancy status of a fluidizable bed (10) includes determining (102) an unloaded plenum pressure value corresponding to the absence of a load on the bed, determining (104) a loaded plenum pressure value corresponding to the presence of an occupant on the bed, and establishing a reference (PREF) as a function of at least one of the unloaded plenum pressure value and the loaded plenum pressure value. A signal (116, 120) is issued in response to a relationship between the reference and a value (PMON) representative of actual pressure in the plenum. The bed also includes a pressure sensor (60) for monitoring a pressure value representative of pressure in the plenum and a controller (50) for issuing a signal (116, 120) responsive to a relationship between the monitored value and a reference value.
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