Method and device for determining floor in which a moving target is located based on differential barometric leveling

Abstract

The embodiment of the invention provides a method and device for determining a floor in which a moving target is located based on differential barometric leveling. The method and the device are applied to a mobile terminal. The method comprises the steps of determining a position area in which the moving target is located according to floor map information of a stored target building; for the position area, obtaining a motion attribute of the moving target through an inertia sensor, wherein the motion attribute comprises standstill and walking passing by the position area; for the motion attribute, determining at least one first height value of the moving target through a differential barometric leveling method; and determining the floor in which the moving target is located according to the stored floor height information and the at least one first height value, wherein the floor height information is a height value of each floor of the target building. According to the embodiment of the invention, the accuracy of testing the floor in which the moving target is located is improved.

Description

technical field [0001] The invention relates to the technical field of positioning and navigation, in particular to a method and device for determining the floor of a moving target based on differential air pressure altimetry. Background technique [0002] With the continuous development of science and technology, various handheld terminal devices are used to locate the location of a moving object (eg, a mobile person), where the location of the moving object includes: altitude, latitude, longitude, etc. [0003] There are many methods for measuring the height of a moving target in the prior art, among which, in the field of positioning and navigation technology, the differential air pressure altimetry method is mainly used to obtain the height of the moving target. Specifically, the specific process of using differential air pressure altimetry to determine the height of the moving target is: obtain the air pressure value and temperature value of the moving target through th...

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Problems solved by technology

[0004] However, the air pressure and temperature values ​​obtained by using the universal air pressure sensor at the location of the moving target do not take into account the inconsistency of the indoor and outdoor environments. Larger, when the moving target is indoors or outdoors on the same floor, the outdoor height value of the moving target obtained by using the existing technical scheme may be different from the indoor height value of the moving target. It can be seen that using the differential pressure altimetry method The accuracy of obtaining the height of the moving target is not high

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