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Indoor positioning method for dv-hop based on rssi average hop distance and path loss

An average jump distance and indoor positioning technology, which is applied in the direction of services based on specific environments, wireless communications, electrical components, etc., can solve the problems of many influencing factors, large gaps between measured values ​​and theoretical values, and distance measurement basis, which has not been considered. To achieve the effect of improving positioning accuracy

Active Publication Date: 2022-04-01
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention does not take into account the RSSI value under the actual indoor environmental conditions, which is affected by many environmental factors, and the gap between the measured value and the theoretical value is large, so it is not suitable to be directly used as the basis for distance measurement

Method used

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  • Indoor positioning method for dv-hop based on rssi average hop distance and path loss
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  • Indoor positioning method for dv-hop based on rssi average hop distance and path loss

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Embodiment Construction

[0048] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail, convenient to understand the present invention clearly, but they are not construed as limiting the present invention.

[0049] Example indoor positioning applications such as figure 1 As shown (such as: underground parking lot, etc.), the communication between the upper computer and the gateway in the figure can be wireless communication or wired communication. After the nodes communicate with each other, the RSSI value, the minimum hop count and other data are transmitted to the gateway wirelessly, and finally transferred to the host computer, and then the position of the unknown node is calculated on the host computer by the following method. It is agreed that for the beacon node i, the maximum ideal hop count is h i，max . The maximum ideal hop count h i，max It is used to limit the upper limit of the hop value that appears in this method, and...

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Abstract

The technical scheme that the present invention adopts is: a kind of DV-hop indoor positioning method based on RSSI average hop distance path loss, it is characterized in that comprising the following steps: the beacon node and the unknown node of intercommunication are randomly deployed in the selected indoor area, The coordinates of the beacon node are known; the beacon node and the unknown node transmit the hop count and RSSI value information to each other within their respective communication ranges; then each node transmits the RSSI value, hop count and other data to the host computer through the gateway; finally through the host The computer calculates the position of the unknown node. The purpose of the present invention is exactly for the defective of prior art, provides a kind of DV-hop indoor positioning method based on RSSI average jump distance path loss, has improved the positioning accuracy of DV-hop and RSSI ranging positioning.

Description

technical field [0001] The invention relates to the technical field of indoor wireless network positioning, in particular to a DV-hop indoor positioning method based on RSSI average jump distance path loss. Background technique [0002] With the continuous development of Internet technology, indoor wireless positioning technology is more and more widely used in daily life. For example, indoor scenes such as large shopping malls and underground parking lots, where the population is relatively concentrated, and there is a high demand for location information such as people and objects. Currently known positioning technologies, such as Global Positioning System (Global Positioning System, GPS) and Beidou Navigation Satellite System (Bei Dou Navigation Satellite System, BDS), can no longer meet people's needs in terms of indoor positioning accuracy, so a large number of scholars have carried out research on Research on indoor wireless positioning technology. Among them, the cl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/33H04W64/00
CPCH04W4/33H04W64/00
Inventor 邹学玉周向
Owner YANGTZE UNIVERSITY