The invention discloses a high-
usability high-reliability and high-efficiency
fire evacuation indicating
system and a method. The
system adopts a three-layer
system structure formed by an evacuation indicating control
host machine, passageway evacuation indicating control sub machines and passageway detection / indicating devices, wherein the passageway evacuation indicating control sub machines are positioned at
stairs of each floor, each unit of the system exchanges information through an element interconnect
bus (EIB), and the passageway detection / evacuation indicating devices are directly embedded into the control sub machines.
Wireless backup communication is additionally added between the
host machine and the sub machines (the passageway detection / evacuation indicating devices), and the integral reliability and the
usability of the system are enhanced. The secondary threshold warning strategy of a composite
fire hazard detector is adopted, a corresponding
information processing method is used as an auxiliary measure, in addition, evacuation paths are continuously regulated according to the real-time fire conditions, the goals of shortening the warning time and reducing the mistake warning rate are reached, and the
usability of the evacuation indicating system is further improved. The space positions of the detection / indicating devices are shown according to the floors on the basis of the three-dimensional geographical characteristics of the tall
building evacuation paths, the building typical evacuation structure and the Dijkstra
algorithm with an improved
data structure are adopted, and the
route planning efficiency of the escape
route is improved.