Indoor positioning method

An indoor positioning and positioning module technology, applied in the field of positioning, can solve the problems of many interference sources, susceptibility to environmental interference, complex positioning environment, etc., and achieve the effect of improving precision and high accuracy

Active Publication Date: 2018-12-18
CHONGQING SURVEY INST
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Problems solved by technology

[0003] The indoor environment occupies 80% of the daily life time of human beings. Indoor location-based services have a wide range of application fields and potential demands. However, in practical applications,

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Embodiment Construction

[0059] 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.

[0060] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0061] The present ...

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Abstract

The invention provides an indoor positioning method. The method comprises the following steps: inputting a real-time obtained image, and detecting and outputting a currently located indoor environmenttype by an environment sensing module; performing indoor positioning by using a basic positioning module to obtain a regional level or meter level precision positioning range; matching the output environment type in the environment sensing module with a geographic database to obtain a precise range of the location; corresponding the obtained precise range to a three-dimensional model of a locatedindoor space, and performing two-dimensional-three-dimensional matching with the real-time obtained image in an image matching module; and restoring a geometric mapping relationship between a two-dimensional image and the three-dimensional model according to three-dimensional-two-dimensional matching point pair coordinates, establishing a camera projection model of the two-dimensional image to the three-dimensional model, and solving a three-dimensional space coordinates and pose of an image sensor to obtain final result positioning. According to the method, on the basis of the common indoorpositioning technology, the image recognition technology is imported to effectively improve the precision of indoor positioning.

Description

technical field [0001] The invention relates to the field of positioning, in particular to an indoor positioning method. Background technique [0002] Indoor positioning refers to the realization of position positioning in the indoor environment. It mainly adopts wireless communication, base station positioning, inertial navigation positioning and other technologies to form an indoor position positioning system, so as to realize the position monitoring of people and objects in the indoor space. In addition to the cellular positioning technology of the communication network, common indoor wireless positioning technologies include: WiFi, Bluetooth, infrared, ultra-wideband, RFID, ZigBee and ultrasonic waves. [0003] The indoor environment occupies 80% of the daily life time of human beings. Indoor location-based services have a wide range of application fields and potential demands. However, in practical applications, due to the complex indoor positioning environment and many...

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Application Information

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IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 郑鸿云陈翰新向泽君颜宇白轶多夏君和世开张婕陈尔东昊余晔谢瑞刘军程飞熊明武雪梅常静
Owner CHONGQING SURVEY INST
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