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Indoor positioning and navigation method, device, and system

A technology for indoor positioning and positioning transmission, which is applied in the fields of navigation methods, indoor positioning, systems, and devices, and can solve problems such as low positioning accuracy and positioning result errors of RSSI indoor positioning technology

Inactive Publication Date: 2019-08-13
云盾智能物联有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An indoor positioning and navigation method, device, and system provided by the present invention mainly solve the technical problem that the positioning result error of RSSI indoor positioning technology is relatively large, and the positioning accuracy is not high

Method used

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  • Indoor positioning and navigation method, device, and system
  • Indoor positioning and navigation method, device, and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] See figure 1 , figure 1 It is a schematic flow chart of the indoor positioning method of Embodiment 1, and the method mainly includes the following steps:

[0054] S101. Receive an electromagnetic signal broadcast by a positioning transmitter deployed indoors, where the electromagnetic signal carries first location information of the positioning transmitter itself.

[0055] This solution is mainly used in shopping malls, underground garages and other indoor areas to achieve precise positioning of vehicles and pedestrians. Vehicles can receive the electromagnetic signal broadcast by the positioning transmitter through the vehicle-mounted terminal, and pedestrians can receive the electromagnetic signal broadcast by the positioning transmitter through mobile terminals such as mobile phones.

[0056] The positioning transmitter can be fixed at the set height position on the indoor wall, and try to be as horizontal as possible with the position of the terminal to be positi...

Embodiment 2

[0091] This embodiment provides an indoor navigation method on the basis of the first embodiment above, please refer to image 3 , the indoor navigation method mainly includes the following steps:

[0092] S301. Obtain an indoor electronic map.

[0093] The positioning transmitter or other equipment of the indoor positioning system can broadcast the indoor electronic map in real time, so that the terminal to be positioned can obtain it at the first time when it enters the area, and locate and navigate in time.

[0094] S302. Based on the coordinate values ​​of the terminal to be positioned obtained by the indoor positioning method described in Embodiment 1 above, the location information of the terminal to be positioned is drawn and updated on the indoor electronic map to form a moving path of the terminal to be positioned.

[0095] After obtaining the current coordinate value of the terminal to be positioned, the coordinate value can be drawn in any existing way, so as to di...

Embodiment 3

[0097] On the basis of the first embodiment above, this embodiment provides an indoor positioning device, which is mainly used to implement the steps of the indoor positioning method described in the first embodiment above. Please refer to Figure 4 , the indoor positioning device 400 mainly includes the following modules:

[0098] The signal receiving module 401 is used to receive the electromagnetic signal broadcast by the positioning transmitter arranged indoors, and the electromagnetic signal carries the first location information of the positioning transmitter itself; the signal receiving module 401 includes but is not limited to a radio frequency antenna .

[0099] The signal detection module 402 is configured to detect the received signal strength indicator P of the electromagnetic signal corresponding to each positioning transmitter. R .

[0100] The signal processing module 403 is configured to analyze the received electromagnetic signal corresponding to each positi...

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Abstract

The invention provides an indoor positioning and navigation method, device, and system. On the basis of RSSI positioning, the influence of distance between the positioning transmitting end and a to-be-positioned terminal on the positioning is fully considered, and the direct use of the distance between the positioning transmitting end and the to-be-positioned terminal for calculation is avoided, the reciprocal sum of the distance is used as a weight, the dominant role of secondary data with greater distance is effectively avoided, the correlation between the two distance values is improved, and positioning accuracy and precision can be improved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to an indoor positioning and navigation method, device and system. Background technique [0002] At present, indoor positioning mostly adopts a positioning method based on RSSI (Received Signal Strength Index, received signal strength indication). RSSI positioning technology generally adopts a method based on ranging. First, the transmit signal strength of the sending node is known, and the signal strength received by the receiving node is compared with the known transmit signal strength to calculate the loss of the signal during propagation. Or an empirical signal propagation model, which converts the propagation loss into a distance, and locates by obtaining the distance between nodes. However, in the process of positioning calculation, the distance of the sending node is not considered, and the impact on the positioning result is also different, resulting in a large ...

Claims

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Application Information

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IPC IPC(8): G01S5/10
CPCG01S5/10
Inventor 漆晶胡永忠
Owner 云盾智能物联有限公司
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