公开(公告)号：US08988232B1

公开(公告)日：2015-03-24

申请号：US14508146

申请日：2014-10-07

Applicant: Google Inc.

Inventor： David Sloo ,  Nick Webb ,  Matthew L. Rogers ,  Anthony M. Fadell ,  Jeff Lee ,  Sophie Le Guen ,  Andrew W. Goldenson

IPC: G08B21/00 ,  G08B21/18 ,  G08B17/10

CPC classification number: G06K9/00744 ,  F24F11/30 ,  F24F11/33 ,  F24F11/34 ,  F24F11/46 ,  F24F11/58 ,  F24F11/70 ,  F24F11/75 ,  F24F11/89 ,  F24F2120/10 ,  G01J1/4204 ,  G01N27/02 ,  G01N27/121 ,  G01N33/0031 ,  G01N33/004 ,  G01V8/10 ,  G06T7/70 ,  G08B3/10 ,  G08B5/22 ,  G08B5/36 ,  G08B17/10 ,  G08B17/117 ,  G08B19/005 ,  G08B21/12 ,  G08B21/14 ,  G08B21/18 ,  G08B21/182 ,  G08B25/002 ,  G08B25/008 ,  G08B25/012 ,  G08B25/08 ,  G08B29/02 ,  G08B29/04 ,  G08B29/185 ,  G08B29/22 ,  G08B29/26 ,  H04L12/2803 ,  H04L12/2809 ,  H04L12/2818 ,  H04L12/282 ,  H04L67/025 ,  H04L67/10 ,  H04L67/24 ,  H04M1/72561 ,  H04N7/183 ,  H05B33/0854 ,  H05B33/0872 ,  H05B37/0218 ,  H05B37/0272 ,  Y02A50/243

Abstract: Ambient amount of a hazardous condition may be monitored. A mode may be set to a state indicative of the hazardous condition being present in the ambient environment. It may then be determined that the amount of the hazard in the ambient environment has dropped below a threshold hazardous condition level. A time period may then be tracked during which the amount of the hazardous condition present in the ambient environment of the hazard detector has remained below the threshold hazardous condition level. It may be determined that the time period has reached at least a threshold duration, during such time period the amount of the hazardous condition present in the ambient environment of the hazard detector having remained below the threshold hazardous condition level. An indication of the hazardous condition easing may be output in response to the time period being at least the threshold duration.

Abstract translation: 可能会监测危险状况的环境数量。 可以将模式设置为指示在周围环境中存在的危险状况的状态。 然后可以确定周围环境中的危险量已经降到阈值危险状况水平以下。 然后可以跟踪危险检测器的周围环境中存在的危险状况的量已经保持低于阈值危险状况水平的时间段。 可以确定时间段已经达到至少阈值持续时间，在该时间段期间，危险检测器的周围环境中存在的危险状况的量已经保持在阈值危险状态水平以下。 可以响应于该时间段至少为阈值持续时间来输出危险状况宽松的指示。