Patent ID: 6998992
Filing Date: 2006-02-14
Classification: G08B

Abstract:
1. A method for evaluating the development of a hazard situation within a space or an area with the aid of hazard level concepts and, upon the occurrence of a hazard situation, creating conditions whereby the hazard level of the hazard situation can be obtained on the basis of information relating to the development of said hazard situation deriving from a plurality of sensors that function in respect of mutually the same or mutually different criteria, wherein information relating to the time-wise variation of output signals related to the hazard situation and obtained from a first sensor and also relating to at least the time-wise variation of similar output signals obtained from a second sensor can be stored; a comparison between the current or momentary values of the output signals and/or measured time-related changes generate a hazard level value for the occurring hazard situation through the medium of a calculating circuit; wherein solely the hazard level values that exceed a first hazard level of an indicated hazard situation are chosen to follow the development of the hazard situation by means of the output signals from said sensors and to calculate the geographic location of the hazard, and wherein a calculated location is dependent on a significant change in the variation of the output signal of the first sensor in respect of the hazard situation, a significant change in the variation of the output signal of the second sensor in respect of the same hazard situation, the time duration between said significant changes, and the distance between used sensors.