Indoor positioning and path planning method for fire extinguishing rescue condition

Abstract

The invention discloses an indoor positioning and path planning method for a fire extinguishing rescue condition. The method involves a server platform of an emergency site command center, a GPS positioning module of a fireman, an inertial navigation module, an air respirator with augmented reality glasses, and terminal equipment for information processing and transmission. A conversion relationship between an inertial navigation coordinate system and a world coordinate system is obtained through GPS positioning and inertial navigation positioning; the specific position of the fireman in a building is obtained; and an indoor optimal path from the fireman to a target position is planned according to a target position specified by the command center. According to the method, the fire extinguishing rescue action speed of firefighters can be effectively increased, and the action safety of the firefighters can be guaranteed.

Description

technical field [0001] The invention relates to an indoor positioning and optimal path planning method, in particular to an indoor positioning and path planning method in the case of fire fighting and rescue. Background technique [0002] With the rapid development of cities, large building fires occur from time to time. When carrying out fire fighting and rescue inside a large building, due to the extremely high smoke concentration at the fire scene and the complex internal structure of the building, firefighters are prone to lose their way, slow down their action speed, miss the best time for fire fighting and rescue, and increase the risk of firefighters' own safety . [0003] The relatively mature positioning and path planning systems are mainly outdoor positioning and path planning systems, such as the outdoor vehicle-mounted positioning and path planning systems of AutoNavi and Google. The above positioning methods are widely based on the global positioning system, a...

AI Technical Summary

Problems solved by technology

For indoor situations, outdoor positioning and path planning systems often rely on a good outdoor network and data foundation, but Beidou / GPS and cellular signals will be seriously attenuated after entering the room, and there will be serious multipath effects at the same time, and the positioning accuracy is very low

The UWB (UltraWideband) system can achieve high-precision indoor positioning, but it needs to be deployed in the building in advance. The deployment range is wide and difficult, and it cannot be used in the event of a fire and power failure.

Images