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High-density rapid collection method for indoor fingerprint positioning database

A collection method and fingerprint positioning technology, applied in the directions of location-based services, nan, electrical components, etc., can solve problems such as difficulty in updating the database and increase the time for establishing the database, so as to reduce the workload, simplify the establishment process, and improve the positioning accuracy. Effect

Active Publication Date: 2016-01-13
北京停碳科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-density and fast collection method for indoor fingerprint positioning database, aiming to solve the problem that the high grid density of the prior art greatly increases the time for establishing the database, which also causes difficulties in the later database update, making the fingerprint Localization methods have strong limitations in practical applications

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  • High-density rapid collection method for indoor fingerprint positioning database
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  • High-density rapid collection method for indoor fingerprint positioning database

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[0049] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0050]The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0051] Such as figure 1 As shown, the indoor fingerprint positioning database high-density rapid acquisition method of the embodiment of the present invention includes the following steps:

[0052] S101: In the area to be positioned, plan different database RSSI acquisition paths, take the straight line path as the smallest unit path, and set the starting point of each unit path. Based on the starting point, the collector carries the RSSI acquisition device and the inertial navigation ...

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Abstract

The invention discloses a high-density rapid collection method for an indoor fingerprint positioning database, and the method comprises the steps: obtaining electronic map coordinates of a unit path; carrying out RSSI collection, scanning a wireless signal transmission device, and obtaining and recording RSSI values; solving the absolute values of the differences between scanning moments of all signal intensities and the generation moments of all coordinates, finding the generation moment of coordinates with the minimum absolute value, carrying out pairing, and storing the generation moment of coordinates with the minimum absolute value as a basic data unit of the database; extracting the mean value of RSSI values if there are a plurality of electronic map coordinates corresponding to RSSI data in the database at the same time, and taking the mean value as the unit data of the electronic map coordinates in the database. The method achieves the data collection when a person is in continuous movement. Compared with a conventional gridding collection method, the method is high in signal collection speed, is high in signal collection density, greatly reduces the time in building the database, and improves the collection density and positioning precision of the database. The method facilitates the large-scale popularization of a fingerprint positioning method.

Description

technical field [0001] The invention belongs to the technical field of fingerprint positioning, in particular to a high-density and fast collection method for an indoor fingerprint positioning database. Background technique [0002] The traditional indoor fingerprint positioning method based on received signal strength information (Received Signal Strength Indicator, RSSI) needs to divide the area to be positioned into a plurality of grids with known positions in the database establishment stage, and carry out data sampling in the grid through a handheld device, and finally The sampling data and the collection location are paired and stored in the database. The density of the grid greatly affects the final positioning accuracy, the greater the density, the higher the positioning accuracy. [0003] The higher grid density of the prior art greatly increases the time for establishing the database, and also causes difficulties for later database updates, which makes the fingerp...

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Application Information

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IPC IPC(8): H04W64/00H04W4/04H04W4/02
CPCH04W4/027H04W64/006
Inventor 段林甫秦爽齐云来聂永峰吴国栋仰石柏思琪
Owner 北京停碳科技有限公司
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