公开(公告)号：US12074661B2

公开(公告)日：2024-08-27

申请号：US17389572

申请日：2021-07-30

Applicant: Cisco Technology, Inc.

Inventor： Samer Salam ,  Min Se Kim

IPC: H04B17/391 ,  G06F30/18 ,  G06T15/00 ,  G06T15/04 ,  G06T15/08 ,  G06T17/10 ,  H04B17/318 ,  H04B17/336 ,  H04W16/20

CPC classification number: H04B17/391 ,  G06F30/18 ,  G06T15/005 ,  G06T15/04 ,  G06T15/08 ,  G06T17/10 ,  H04B17/318 ,  H04B17/336 ,  H04W16/20

Abstract: The present technology is directed to visualizing a Wi-Fi signal propagation in 3-D based on a building plan defined with implicit geometry. The present technology can extract data from a building plan file where a 3-D space and objects in a building plan are defined with implicit geometry, transform the implicit geometry to explicit geometry for the 3-D space and the objects to translate a positioning of the 3-D space and objects from a local coordinate system to a global coordinate system, calculate a RF propagation pattern in the 3-D space based on a RF propagation model for a plurality of Wi-Fi access points located in the 3-D space, and present a 3-D visualization of the RF propagation pattern in the 3-D space.

公开(公告)号：US20230036982A1

公开(公告)日：2023-02-02

申请号：US17389572

申请日：2021-07-30

Applicant: Cisco Technology, Inc.

Inventor： Samer Salam ,  Min Se Kim

IPC: H04B17/391 ,  H04W16/20 ,  H04B17/318 ,  H04B17/336 ,  G06T17/10 ,  G06T15/04 ,  G06T15/08 ,  G06T15/00 ,  G06F30/18

Abstract: The present technology is directed to visualizing a Wi-Fi signal propagation in 3-D based on a building plan defined with implicit geometry. The present technology can extract data from a building plan file where a 3-D space and objects in a building plan are defined with implicit geometry, transform the implicit geometry to explicit geometry for the 3-D space and the objects to translate a positioning of the 3-D space and objects from a local coordinate system to a global coordinate system, calculate a RF propagation pattern in the 3-D space based on a RF propagation model for a plurality of Wi-Fi access points located in the 3-D space, and present a 3-D visualization of the RF propagation pattern in the 3-D space.

公开(公告)号：US12041461B2

公开(公告)日：2024-07-16

申请号：US17481815

申请日：2021-09-22

Applicant: Cisco Technology, Inc.

Inventor： Salvatore Valenza ,  Samer Salam ,  Taha Hajar ,  Nikodin Ristanovic ,  Arun G. Khanna ,  Min Se Kim ,  Matthew Aaron Silverman ,  James Florwick

IPC: H04W16/22 ,  G06T15/06 ,  G06T19/00 ,  H04W16/20

CPC classification number: H04W16/22 ,  G06T15/06 ,  G06T19/00 ,  H04W16/20

Abstract: The present technology is directed to visualizing a Wi-Fi signal propagation in 3-D at various heights and locations. The present technology can calculate a radio frequency (RF) propagation pattern for a Wi-Fi access point (AP) based on a RF propagation model for the Wi-Fi AP and overlay the RF propagation pattern for the Wi-Fi AP over a visualization of the building plan to present a 3-D visualization of the RF propagation pattern of the 3-D space. In particular, the present technology can project a plurality of ray-paths in various directions in a 3-D space originated from the Wi-Fi AP and determine whether the ray-paths interface with objects defined in the building plan. The present technology can segment the respective ray-path into contiguous segments of substantially uniform mediums for each ray-path that interface with the objects and determine a RF signal strength at points along the contiguous segments of the ray-paths.