Building Fire Alarm System with Multi-sensor and Information Fusion Technology Based on D-S Evidence Theory

Development of a method to improve the performance speed of maximal fire detectors

“…In this regard, there is an intensive research into finding constructive ways to improve performance speed of MTFD under real dynamic conditions with regard to occasional temperature perturbation. Paper [4] examined the possibilities of employing the methods of D-S theory. Using the methodology of sensory networks is tackled in article [5].…”

Examining the learning fire detectors under real conditions of application

“…Thus, for instance, article [3] addresses special features of creating multi-sensor detectors for fire automation systems, which function under conditions of uncertainty based on the theory of fuzzy logic. In this case, fuzzy logic is limited to the description of uncertainty in the form of fuzzy magnitudes with the assigned membership functions.…”

“…Consequently, papers [3][4][5] address the problem on improving the effectiveness of fire detection under conditions of uncertainty, which is limited to the cases of either assigned statistics of observations or disturbances, or assigned fuzzy magnitudes with the assigned membership functions. In this case, the problem of the guaranteed fire detection under conditions of uncertainty, characterized by the lack of data about observation statistics, is not examined in the above-mentioned studies.…”

“…Temperature of the elements of design of traction engines increases over the time of operation and can exceed permissible structural limits [2,3]. This is especially true for temperature of the insulation of the motor windings, which is constrained by a class of the applied insulation [3,4].…”

“…Temperature of the elements of design of traction engines increases over the time of operation and can exceed permissible structural limits [2,3]. This is especially true for temperature of the insulation of the motor windings, which is constrained by a class of the applied insulation [3,4]. To reduce temperature in the elements of design of engines, the cooling systems are employed that increase the efficiency of heat exchange in the engine design elements through the application of ventilation by air [5,6], by wa-…”