Floor identification method based on building open edge distance weighting

A technology of edge distance and identification method, which is applied in the direction of measuring devices, instruments, electrical components, etc., and can solve the problem of high computing power and storage capacity of positioning equipment

Active Publication Date: 2014-12-10
B SOFT CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

These methods require additional sensor devices or complex algorithms, and require high computing and storage capabilities for positioning devices.

Method used

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  • Floor identification method based on building open edge distance weighting
  • Floor identification method based on building open edge distance weighting
  • Floor identification method based on building open edge distance weighting

Examples

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Embodiment Construction

[0050] A distance-weighted approach to floor recognition based on building open edges, first deployed and then floor localized.

[0051] The deployment is to measure and calculate a building with n floors and m APs on each floor to obtain signal characteristic data of the building. The AP is a hotspot (AccessPoint, wireless access point), and the specific steps are :

[0052] Step 1. Number each AP in the building AP(k,j), where k is the floor number of the AP, and j is the number of the AP on the floor, 1≤k≤n, 1≤j≤m. E.g figure 2 Middle AP(8,2) represents the second AP in the 8th layer.

[0053] Step 2. Determine the minimum distance D(k,j) between each AP(k,j) and the open edge of the floor where the open edge refers to the part of the building exterior wall without concrete walls, such as windows and guardrails Wait. E.g figure 2 The rectangle in the center represents the central patio of the building. The 8th floor near the central patio has metal railings and no wa...

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Abstract

The invention relates to a floor identification method based on building open edge distance weighting. An extra sensor device or a complex algorithm is needed by current methods, and requirements on the operational capability and storage capability of a device are high. The floor identification method based on building open edge distance weighting comprises the steps of: deploying firstly, and then locating floors. The deployment comprises the sub-steps of: firstly, determining a minimum distance between each AP and an open edge of a floor where each AP is, so as to obtain an average value of the minimum distances; then calculating a floor positioning weight for each AP to obtain each measuring point, and measuring to obtain signal intensity vectors. The floor location comprises the sub-steps of: firstly, measuring a signal intensity vector of the current position; then calculating a signal intensity vector weighted distance between each measuring point and the current position; regarding the floor where the measuring point with the minimum signal intensity vector weighted distance as the floor where the current currently is. As the signal intensity vector distance is calculated based on the distance between each AP and the open edge of the floor as a weight factor, and a traditional algorithm is amended, a more precise floor locating result is obtained.

Description

technical field [0001] The invention belongs to the technical field of signal positioning and identification, and in particular relates to a floor identification method based on weighted distances from open edges of buildings. Background technique [0002] With the rapid development of wireless network technology and the increasing demand for location services, wireless location technology has received more and more attention. GPS (Global Position System, Global Positioning System) is a space satellite navigation and positioning system developed by the United States in the 1970s to provide real-time, all-weather and global navigation services in the three major fields of land, sea and air. For the open outdoor environment where the signal is easy to reach, GPS can provide high-precision positioning information. As for the indoor environment, due to the occlusion of the building itself and the internal structure of the building including walls, doors and windows, various fur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W64/00G01S5/00
Inventor 朱旭东邱瑛沈丽华
Owner B SOFT CO LTD
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