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Indoor positioning navigation trolley system based on WiFi, and positioning method thereof

An indoor positioning and positioning method technology, applied in the field of pattern recognition, can solve problems such as positioning error and WiFi information instability, and achieve the effect of improving positioning accuracy, avoiding positioning inaccuracy, and reducing direct dependence.

Active Publication Date: 2017-08-18
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, because the WiFi information is unstable in the indoor environment, it brings a large error to the positioning

Method used

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  • Indoor positioning navigation trolley system based on WiFi, and positioning method thereof
  • Indoor positioning navigation trolley system based on WiFi, and positioning method thereof
  • Indoor positioning navigation trolley system based on WiFi, and positioning method thereof

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Embodiment Construction

[0030] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and examples, but the implementation and protection of the present invention are not limited thereto.

[0031] An architecture diagram of a cart system based on WiFi indoor positioning and navigation figure 1As shown, it mainly includes a movable cart, a human-computer interaction interface, a speed detection module, a direction detection module, a WiFi detection module, a positioning data processing module, a map data construction module, and a data storage module. Among them, the movable cart is used to provide a carrying platform for the WiFi indoor positioning and navigation cart system, and can be used to move and traverse indoor locations during data collection; the human-computer interaction interface is used to display indoors when the WiFi indoor positioning and navigation cart system provides positioning services Space map and huma...

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Abstract

The invention discloses an indoor positioning navigation trolley system based on WiFi, and a positioning method thereof. The indoor positioning navigation trolley system comprises a movable trolley, a human-computer interaction interface, a speed detection module, a direction detection module, a WiFi detection module, a positioning data processing module, a map data construction module and a data storage module. The positioning method comprises that when a pedestrian pushes the movable trolley to walk in a room, the speed detection module and the direction detection module acquire the real-time movement information of the movable trolley; and the relative position of the movable trolley is continuously acquired in an iterated manner according to the movement information while online position prediction is performed by using a particle filter technology, and finally the real-time position of the movable trolley is calculated. According to the present invention, with the indoor positioning navigation trolley system and the positioning method, the indoor dynamic positioning navigation precision can be effectively improved, and the system and the method are suitable for the positioning service for the large-area and complex-environment indoor mobile device.

Description

technical field [0001] The invention relates to an indoor positioning method and device in the field of pattern recognition, in particular to a navigation cart system and positioning method based on WiFi indoor positioning. [0002] technical background [0003] With the continuous development of mobile Internet technology, Location Based Service (LBS) is becoming more and more popular. However, in indoor environments, GPS (Global Position System, GPS) signals are blocked by buildings, and indoor environments cannot be received normally. GPS signal, GPS positioning cannot be used in indoor environment. As a common indoor device, WiFi has been deployed in a large number of indoor environments. Indoor positioning based on WiFi location fingerprints has become a current research hotspot. WiFi indoor positioning can use existing equipment without additional hardware facilities, and has the advantages of low cost and wide availability. However, because the WiFi information is un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 张梅申文波朱金辉
Owner SOUTH CHINA UNIV OF TECH
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