Patent ID: 8629780
Filing Date: 2014-01-14
Classification: G08B

Abstract:
1. A method for detecting and localizing a fire in a monitored room having a first detector unit and a second detector unit for detecting a characteristic fire value, and an evaluation unit connected to the first and second detector units and configured to evaluate the characteristic fire values, the method which comprises: feeding at least some air contained in the monitored room to the first detector unit via a first pipe conduit and to the second detector unit via a second pipe conduit, the first and second pipe conduit being formed with suction intakes, thereby pumping the air to the detector units by way of at least one suction unit and setting a mean air speed of the air in the first pipe conduit to differ from a mean air speed in the second pipe conduit; on detection of at least one threshold value of the characteristic fire value, determining with the evaluation unit a time difference between a detection of the at least one threshold value at the first detector unit and a detection of the same at least one threshold value at the second detector unit; and determining a location of the fire with the at least one determined time difference in dependence on the mean air speeds in the first and second pipe conduit.