Popis: |
In this paper, we propose an indoor positioning system by studying micro-inertial navigation technology and Pedestrien Dead Reckoning. In the complex fire environment, the system can collect the three-dimensional motion trajectory of firefighters in real time, realizing indoor three-dimensional positioning without blind zone and monitoring of personnel movement state. The system can improve the rescue capability of the fire department. Through different scene tests, the positioning accuracy of the system is high and the precise positioning time is long. |