A Smartphone-Based Indoor Floor Locating Method
A technology of a smart phone and a positioning method, applied in the field of positioning, can solve the problems of weak signal, difficult elevation measurement, and inconvenience to carry around.
Active Publication Date: 2020-01-07
JIANGXI NORMAL UNIV
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Problems solved by technology
GPS is commonly used outdoors for elevation measurement and laser altimetry, but in the indoor environment, there are the following limitations: (1) The building shields the satellite signal, making the indoor GPS signal weak, so it is difficult to use for elevation measurement; (2) Laser height measurement requires specific equipment, the cost is too high, and it is inconvenient to carry around
Therefore, there are many difficulties in applying outdoor altimetry technology to indoor floor positioning.
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[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0054] These and other aspects of embodiments of the invention will become apparent with reference to the following description and drawings. In these descriptions and drawings, some specific implementations of the embodiments of the present invention are specifically disclosed to represent some ways of implementing the principles of the embodiments of the present invention, but it should be understood that the scope of the embodiments of the present invention is not limited by this limit. On the contrary, the embodiments of the present...
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The invention provides an indoor floor positioning method based on a smart phone, and belongs to the technical field of indoor positioning. First, through the "entry" detection algorithm, it is judged whether the user currently enters the building to be located. If so, the initial location of the floor location is given: the first floor; The behavior of going downstairs, and then calculate the amount of floor change when the user is going upstairs or downstairs, and then combine the initial location of the floor positioning to get the number of floors the user is currently on. In addition, space users are grouped, and users who have been positioned upload their location information for location sharing, so that all users can obtain a new initial location for floor positioning. Combined with the detection of up and down floors and vertical movement estimation, the floor information of users at any time will be known. . The invention realizes a high-precision and high-availability indoor floor positioning technology, realizes indoor high-precision positioning, and promotes indoor location services and applications.
Description
technical field [0001] The invention relates to the technical field of positioning, in particular to a smart phone-based indoor floor positioning method. Background technique [0002] The rapid development of navigation and positioning technology has brought great convenience to people's lives. Outdoors, location-based service-related products such as car navigators, Baidu maps, and Didi Taxi have become an indispensable part of people's lives. Indoors, people also have a strong demand for accurate location services, such as finding the location of a certain room or facility in an unfamiliar building, determining the precise location of trapped people and firefighters during fire rescue, and location-based location-based services in large shopping malls. Advertisement push, positioning of rooms in food delivery, etc. For indoor positioning, floor information is an extremely important part. [0003] Deng Zhongliang of Beijing University of Posts and Telecommunications propo...
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IPC IPC(8): H04W4/021H04W4/33G01S5/02G01S11/06
CPCG01S5/0252G01S11/06H04W4/021
Inventor 余敏阮超郭杭
Owner JIANGXI NORMAL UNIV