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Method and system for positioning and optimizing indoor area

A positioning optimization and inner area technology, applied in the field of positioning, can solve problems such as the complexity of the collection process, and achieve the effect of simple collection process and improved accuracy

Active Publication Date: 2016-05-04
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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Problems solved by technology

The acquisition process of this positioning method is complicated

Method used

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  • Method and system for positioning and optimizing indoor area
  • Method and system for positioning and optimizing indoor area
  • Method and system for positioning and optimizing indoor area

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Embodiment Construction

[0051] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0052] The invention discloses an indoor area positioning optimization method and system, comprising the following steps: a sensor gateway node collects signal strength indication values ​​of multiple sensor mobile nodes to be positioned within the communication range; the gateway node uniquely identifies the collected mobile nodes, and indicates the signal strength Value, the unique identifier of the gateway node, the current time is assembled into a data packet and sent to the positioning server; the positioning server smoothes the signal strength indicator value according to the currently received data packet; the positioning server performs positive logic based on the smoothed strength value Judgment to obtain th...

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Abstract

The invention relates to a method and a system for positioning and optimizing an indoor area. Signal strength indicators of multiple to-be-positioned sensor mobile nodes in a communication range are acquired; the acquired mobile node unique identifier, the signal strength indicators, the gateway node unique identifier and the current time are packaged into a data packet, and the data packet is sent to a positioning server; the positioning server carries out smoothing processing on the signal strength indicators according to the received data packet; positive logic judgment is carried out according to the strength indicator after smoothing to obtain a possible mobile node area position list; impossible areas are removed from the possible area position list, and a final area list is obtained; and through a reliability calculation method, the area position with the highest reliability in the area list is selected to be the final positioning position. Through introducing the mixed logic, the method and the system are used for indoor area positioning, and the indoor area positioning accuracy is improved.

Description

technical field [0001] The present invention relates to the field of positioning technology, in particular to an indoor area positioning optimization method and system. Background technique [0002] Positioning is mainly divided into indoor positioning and outdoor positioning. The complex indoor environment cannot directly use some mature outdoor positioning technologies such as GPS. The current indoor positioning technology is mainly divided into two types based on propagation model and fingerprint model. [0003] The localization based on the propagation model relies on analyzing the characteristics of the signal propagation process to estimate the propagation distance. Commonly used features include: RSSI (ReceivedSignalStrengthIndication, signal strength indicator value), AOA (AngelofArrival, angle of arrival), TOA (TimeofArrival, time of arrival). The positioning accuracy of this positioning method is not high. [0004] The positioning based on the fingerprint model ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00H04W4/04G01S11/06
CPCG01S11/06H04W4/043H04W64/00H04W64/006
Inventor 朱红松陶冶孙利民黄文军于楠
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
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