A positioning method based on image sensor and inertial navigation sensor

An image sensor and inertial navigation sensor technology, applied in navigation, instrumentation, surveying and navigation, etc., can solve the problem of lack of cheap and easy-to-use angle measuring devices, and achieve the effect of great practical value and high plane positioning accuracy

Active Publication Date: 2019-07-19
WUHAN POST & TELECOMM RES INST CO LTD
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Problems solved by technology

Compared with the other two methods, the AOA-based method can obtain more stable and accurate measurement results, but the main problem is the lack of cheap and easy-to-use angle measurement devices

Method used

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  • A positioning method based on image sensor and inertial navigation sensor
  • A positioning method based on image sensor and inertial navigation sensor
  • A positioning method based on image sensor and inertial navigation sensor

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Embodiment Construction

[0027] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples. Those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms are also within the scope of the claims listed in this application.

[0028] Such as figure 1 and figure 2 As shown, the present invention provides a positioning method based on an image sensor and an inertial navigation sensor. The positioning method uses an image sensor and an inertial navigation sensor at the mobile end, and uses the imaging of the reference point light source and its own attitude data to measure the reference point light source. Incident to the launch angle AOA of the mobile terminal, and then determine the position of the mobile terminal itself through the principle of triangulation.

[0029] The...

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Abstract

The invention discloses a positioning method based on an image sensor and an inertial navigation sensor. The positioning method is characterized by comprising steps as follows: an emission angle AOA (angle of arrive) of each reference point light source emitted to a mobile terminal is measured by the image sensor and the inertial navigation sensor at the mobile terminal according to images and attitude data of the reference point light source, and the position of the mobile terminal is determined according to the triangular surveying principle. According to the method, higher planar positioning precision can be stably obtained on the basis of the image sensor and the inertial navigation sensor, besides, imaging detection and arithmetic processing can be performed at a receiving terminal by portable equipment such as the mobile phone and the like, so that hardware cost is very low, portability is realized, and the positioning method has higher practical value.

Description

technical field [0001] The invention belongs to the technical field of space positioning, and specifically relates to a positioning method based on an image sensor and an inertial navigation sensor. Background technique [0002] LED (Lighting Emitting Diode) is called the fourth-generation lighting source or green light source. It has the characteristics of energy saving, environmental protection, long life, and small size. It can be widely used in various indications, displays, decorations, backlights, general lighting and urban lighting. Fields such as night scenes are bound to become the next generation of lighting technology. Because LEDs have the advantages of energy saving, safety, and wide available spectrum, they can also be used in wireless optical communication systems while providing indoor lighting, and at the same time meet indoor Internet access and a series of extended applications. LED-based indoor positioning is one of the application directions with great ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/16
CPCG01C21/165
Inventor 刘武杨超杨奇
Owner WUHAN POST & TELECOMM RES INST CO LTD
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