Indoor positioning method and indoor positioning device based on barometer

Abstract

The invention discloses an indoor positioning method and an indoor positioning device based on a barometer, wherein the indoor positioning method comprises the steps of performing storey change determination by means of a mobile terminal which is internally provided with the barometer through a WiFi and / or Bluetooth positioning method; if storey change is determined by the mobile terminal, acquiring air pressure change value of a current user by means of the mobile terminal which is internally provided with the barometer, searching a preset storey switching air pressure change threshold, determining whether the air pressure change value is larger than the preset storey switching air pressure change threshold; and if the air pressure change value is larger than the preset storey switching air pressure change threshold, switching the storey in which the user exists. The indoor positioning method and the indoor positioning device improves indoor positioning accuracy by means of the mobile terminal through introducing air pressure detection.

Description

technical field [0001] The invention belongs to the technical field of navigation, and in particular relates to a barometer-based indoor positioning method and device. Background technique [0002] With the rapid development of the mobile Internet, people's demand for various mobile services in daily life also increases, and location service is one of the basic needs. Representative positioning systems such as GPS and Beidou provide location services outdoors, but these systems cannot continue to serve indoors because buildings block signals, and the demand for height and floor information is stronger indoors than outdoors. other signals to achieve positioning. WiFi / Beacon positioning is a method with high accuracy in indoor positioning. Commonly used methods include geometric positioning based on RSSI ranging and fingerprint positioning based on RSSI features. Geometric positioning is to estimate the distance from the terminal to the node through the node signal strength ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the inaccurate positioning technology caused by the transparent transmission of positioning signals between the upper and lower floors and serious interference caused by areas such as patios in existing buildings, resulting in misjudgment of positioning floors through WiFi / Beacon, and inaccurate positioning caused by floor results of positioning judgments bouncing back and forth Defect, the present invention assists WiFi / Beacon positioning through the built-in barometer in the smart mobile terminal, thereby improving the accuracy and stability of floor information

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