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A real-time indoor positioning data optimization method

A data optimization and indoor positioning technology, which is applied in satellite radio beacon positioning systems, measuring devices, instruments, etc., can solve problems that affect positioning effects, lack of continuous positioning points, positioning errors, etc., to optimize positioning results and avoid positioning results missing effect

Active Publication Date: 2016-08-17
CAS OF CHENGDU INFORMATION TECH CO LTD
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Problems solved by technology

[0004] In the process of real-time positioning, due to the complex indoor environment, obstacles such as tables and cabinets, and the existence of positioning errors, the located personnel will appear in areas such as tables and cabinets, which is not realistic. logical
[0005] In view of this situation, the method of ignoring the points that appear in the obstacle area can be adopted, but this method will cause the lack of positioning position points, especially in areas where obstacles are densely distributed, which may cause the lack of continuous positioning points, affecting positioning effect

Method used

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  • A real-time indoor positioning data optimization method

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Embodiment Construction

[0018] A real-time indoor positioning data optimization method, such as figure 1 shown, including the following steps:

[0019] Step 1, judging whether the positioning is over: if not, go to step 2, if yes, go to step 7;

[0020] Step 2, obtaining the location information of the current location point;

[0021] Step 3. Determine whether the current location point is within the obstacle area:

[0022] Use the algorithm of the sum of angles to judge whether the current position point is located in the obstacle area, the specific method is as follows:

[0023] (1) abstract the obstacle area into a polygon in a two-dimensional plane (hereinafter referred to as "obstacle area polygon");

[0024] (2) Calculate the angle sum of the angles formed by the current position point and all adjacent vertices of the obstacle area polygon;

[0025] (3) Determine whether the angle sum is equal to 360 degrees:

[0026] If not, then determine that the current location point is on the boundar...

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Abstract

The invention discloses a real-time indoor positioning data optimizing method. In the real-time indoor positioning process, when a positioning result appears in an obstacle area, positioning result optimization is achieved by working out the point of intersection between a line connecting the previous position with the current position and the obstacle area and replacing the current position with the optimized intersection point, and in this way, the deficiency of the positioning result caused when the positioning result appears in the obstacle area is effectively avoided, and the positioning result is made to conform to realistic logic better.

Description

technical field [0001] The invention relates to a real-time indoor positioning data optimization method, in particular to a processing method when the positioning result appears in an obstacle area. Background technique [0002] At present, the way people obtain outdoor location information is mainly through the Global Positioning System (Global Positioning System, GPS). However, since satellite signals are easily blocked by buildings, GPS and other satellite positioning technologies are not suitable for indoor or tall buildings. The rapid development of indoor positioning technology has become a powerful supplement to GPS. Indoor positioning has broad application prospects in medical and health, fire rescue, military applications and other fields. [0003] The main principle of indoor positioning is to use wireless sensor signals to obtain information such as signal strength and signal transmission time in an indoor environment, and then use these information to obtain pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S19/42
CPCG01C21/206
Inventor 崔喆彭程官磊巫浩龙珊李沁吴奕甫冯月孚
Owner CAS OF CHENGDU INFORMATION TECH CO LTD
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