Indoor composite locating method for fire rescue

The invention discloses an indoor composite locating method for fire rescue. The method comprises specific steps as follows: an indoor composite locating system comprising a three-axis accelerometer (1), a three-axis gyroscope (2), a three-axis magnetic compass (3), a barometer (4), a card reader (5), an RFID (radio frequency identification) tag (6) and a DSP (digital signal processor) (7) is constructed; a signal acquisition module (8) acquires signals of the three-axis accelerometer (1), the three-axis gyroscope (2), the three-axis magnetic compass (3) and the barometer (4); a dead reckoning module (9) acquires location information of rescue workers; a motion state extraction module (10) determines motion states of the rescue workers; a matching correction module (12) corrects locations of the rescue workers; a fixed-point correction module (13) determines the locations of the rescue workers in combination with cartographic information so as to perform fixed-point correction on the locations of the rescue workers. The indoor composite locating method for fire rescue realizes high-precision indoor location and is easy to implement and low in dependence on external conditions.