Bed exit monitoring

摘要

A bed exit detection device (100) according to an embodiment of the present invention is mounted to a privacy rail (11) provided in the vicinity of a bed (10) to be monitored. The device (100) comprises a thermographic sensor (130) and a range sensor (40). The thermographic sensor comprises an array of sensing elements operable to generate an output value matrix from the output signals of each individual sensing element.The device (100) is also provided with a processing unit (150) operable to process the output value matrix of the thermographic sensor (130) and the distance output by the range sensor (140) so as to determine the position of a bed occupant and thereby (10) determine the likelihood of a bed exit event.