发明申请
US20120154583A1 METHOD AND SYSTEM FOR MONITORING THE ACCESSIBILITY OF AN EMERGENCY EXIT
审中-公开
监测紧急出口可及性的方法和系统
- 专利标题： METHOD AND SYSTEM FOR MONITORING THE ACCESSIBILITY OF AN EMERGENCY EXIT
- 专利标题（中）： 监测紧急出口可及性的方法和系统
-
申请号： US13330107申请日： 2011-12-19
-
公开(公告)号： US20120154583A1公开(公告)日： 2012-06-21
- 发明人: Stefan Lundberg , Carl-Axel Alm
- 申请人： Stefan Lundberg , Carl-Axel Alm
- 申请人地址： SE Lund
- 专利权人： AXIS AB
- 当前专利权人： AXIS AB
- 当前专利权人地址： SE Lund
- 优先权： EP10195988.0 20101220
- 主分类号： H04N7/18
- IPC分类号： H04N7/18
摘要：
A system and device perform a method for monitoring the accessibility of an emergency exit, which includes illuminating an area in front of the emergency exit by emitting light, detecting reflected light from the illuminated area using an image sensor, calculating a plurality of distances based on the detected reflected light for discrete positions in the image sensor, comparing the each of the plurality of distances with a predetermined distance, and generating an alarm signal if the comparing indicates a substantial difference in distance in at least one position in the image sensor.
信息查询
