Patent ID: 9607456
Date: 2017-03-28
CPC Classifications: G05B,G07C,H04L

Claim:
1. A method performed by a control device comprising: using an identification sensor, generating an identification sensor signal identifying a user and a destination signal; determining a starting point for a route for the user through a building; determining from the destination signal the route and an end point for the route at a building door of the building; determining a route time for travelling from the starting point for the route to the end point for the route; determining that a sensor signal for the building door was not received before an expiration of the route time; as a result of determining that the sensor signal for the building door was not received before the expiration of the route time, activating by the control device an electrical consumer positioned along the route, the electrical consumer comprising a camera; recording an image of a portion of the route using the camera; analyzing the recorded image; and determining whether the user is in a dangerous situation.