Intelligent fire evacuation escape indicating system and method

Abstract

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.

Description

technical field [0001] The invention belongs to the technical category of fire evacuation and escape indication systems, and in particular relates to a high-availability, high-reliability and high-efficiency fire evacuation indication system and method. Background technique [0002] With the advancement of my country's urbanization process, the emerging modern buildings are becoming more and more high-rise, multi-functional, large-scale and complex, and the resulting fire protection problems are also becoming more and more serious. For example, on November 15, 2010, a major fire broke out in an apartment building at No. 728 Jiaozhou Road, Jing'an District, Shanghai, killing 58 people, injuring 71, and causing a direct economic loss of 158 million yuan. The primary task in the event of a fire is to ensure the safe evacuation of personnel, and the evacuation indication system is an indispensable technical equipment to achieve safe evacuation. Therefore, the business community ...

AI Technical Summary

Problems solved by technology

The Dijkstra algorithm can adapt to changes in network topology and has stable performance, so it is very popular in the fire evacuation product industry; the time complexity of the standard Dijkstra algorithm is O(n 2 ), has the disadvantages of taking a long time and taking up a lot of space

There are more than 30 kinds of improved Dijkstra, and the heuristic information related to the problem is added to the algorithm - the evaluation function. The advantage of introducing the evaluation function is to make the path planning directional; the disadvantage is that it is not easy to construct an applicable "evaluation function". At the same time, the "valuation function" also caused additional overhead

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