Abstract
Timely and accurate acquisition of the position information of people in distress in the field is an important prerequisite for successful rescue. This paper analyzed the main positioning means of the current call equipment and the research status of LoRa technology in the position information acquisition of the current call equipment. The author proposed a method to obtain the position information of field rescue equipment based on LoRa, and simulated it in NS3 network simulator. This scheme can meet the requirements of high positioning accuracy, long communication distance and long standby time of field rescue equipment, and has high value on practical application.
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