Service indicator display method and device

Patent metadata

Field	Value
Publication number	US-10742518-B2
Application number	US-201816138482-A
Country	US
Kind code	B2
Filing date	Sep 21, 2018
Priority date	Mar 24, 2016
Publication date	Aug 11, 2020
Grant date	Aug 11, 2020

Abstract

The present disclosure provides a service indicator display method and device. The method includes: obtaining measurement values of service indicators in a building and a three-dimensional grid model of the building, where an outer surface of the model includes multiple polygons; determining, according to the measurement values of the service indicators, a measurement value that is of a service indicator and that is corresponding to a vertex location of each polygon; performing gradient rendering on each polygon according to a legend and the measurement value, to obtain spatial distribution of the service indicators; and displaying the spatial distribution in the building. A surface of a building model is divided more finely by using a polygon, and spatial location distribution of service indicators is reflected more truly by means of gradient rendering, so as to improve network optimization efficiency.

First claim

What is claimed is:

1. A service indicator display method, comprising:
obtaining measurement values of service indicators in a building, wherein the measurement values of the service indicators in the building are evenly distributed in a three-dimensional space, the service indicators being indicative of signal strength;
obtaining a three-dimensional grid model of the building, wherein an outer surface of the three-dimensional grid model comprises multiple polygons;
determining, according to the measurement values of the service indicators in the building, a measurement value of a service indicator for each of the multiple polygons;
performing gradient rendering on each of the multiple polygons according to a legend and the measurement value of the respective polygon, to obtain spatial distribution of the service indicators in the building; and
displaying the spatial distribution of the service indicators in the building.

2. The method according to claim 1 , wherein the obtaining the three-dimensional grid model of the building comprises:
obtaining a planar two-dimensional vector polygon of the building;
extending the planar two-dimensional vector polygon in a vertical direction by using the planar two-dimensional vector polygon as a benchmark, to form K planar vector polygons in the three-dimensional space, wherein a k th planar vector polygon and a (k+1) th planar vector polygon in the K planar vector polygons are adjacent to each other in a vertical direction, and a height difference between the k th planar vector polygon and the (k+1) th planar vector polygon is a first preset value, wherein k=1, 2, . . . , K−1, and wherein K is a positive integer greater than 1;
performing point insertion processing on each side of each planar vector polygon in the K planar vector polygons, wherein a distance between two adjacent insertion points on each side is a second preset value;
constructing an exterior facade polygon by using a boundary point of the k th planar vector polygon, an insertion point on a side of the k th planar vector polygon, a boundary point of the (k+1) th planar vector polygon, and an insertion point on a side of the (k+1) th planar vector polygon as vertexes; and
constructing a top polygon by using the boundary point of the K th planar vector polygon, the insertion point on the side of the K th planar vector polygon, and mapping points of the measurement values of the service indicators in the building on a surface of the K th planar vector polygon as vertexes.

3. The method according to claim 2 , wherein at least one of the following is true:
the first preset value is a measurement precision of the service indicators in the building in a vertical direction; or
the second preset value is a measurement precision of the service indicators in the building in a horizontal direction.

4. The method according to claim 1 , wherein the obtaining the three-dimensional grid model of the building comprises:
obtaining a refined model of the building; and
obtaining the three-dimensional grid model according to the refined model.

5. The method according to claim 4 , wherein the obtaining the three-dimensional grid model according to the refined model comprises:
obtaining multiple polygons that are included in an outer surface of the refined model; and
performing segmentation processing on a polygon that is in the multiple polygons, wherein a side length of the polygon is greater than a third preset value or an area of the polygon is greater than a fourth preset value, to obtain a post-segmentation-processing polygon, wherein a side length of the post-segmentation-processing polygon is less than the third preset value or an area of the post-segmentation-processing polygon is less than the fourth preset value.

6. The method according to claim 1 , wherein the obtaining measurement values of service indicators in the building comprises:
measuring the service indicators in the building by using a wireless network three-dimensional positioning technology.

7. The method according to claim 1 , wherein the determining, according to the measurement values of the service indicators in the building, the measurement value of the service indicator for each of the multiple polygons comprises:
determining, according to the measurement values of the service indicators in the building and an inverse distance weighted algorithm, the measurement value of the service indicator for each of the multiple polygons.

8. The method according to claim 1 , wherein at least one of the multiple polygons is a triangle.

9. The method according claim 1 , wherein the method further comprises:
collecting statistics about heights of the measurement values of the service indicators in the building;
performing interpolation processing on measurement values at a same height in the measurement values of the service indicators, to obtain a grid image;
performing gradient rendering on the grid image according to the legend, to obtain a distribution of service indicators corresponding to each height; and
displaying the distribution of the service indicators corresponding to each height.

10. A service indicator display device, comprising:
a non-transitory memory storage comprising instructions; and
one or more hardware processors in communication with the non-transitory memory storage, wherein the one or more hardware processors execute the instructions to:
obtain measurement values of service indicators in a building, wherein the measurement values of the service indicators in the building are evenly distributed in a three-dimensional space, the service indicators being indicative of signal strength;
obtain a three-dimensional grid model of the building, wherein an outer surface of the three-dimensional grid model comprises multiple polygons;
determine, according to the measurement values of the service indicators in the building, a measurement value of a service indicator for each of the multiple polygons; wherein
perform gradient rendering on each of the multiple polygons according to a legend and the measurement value of the respective polygon, to obtain spatial distribution of the service indicators in the building; and
a display unit, configured to display the spatial distribution of the service indicators in the building.

11. The device according to claim 10 , wherein the one or more hardware processors execute the instructions to:
obtain a planar two-dimensional vector polygon of the building;
extend the planar two-dimensional vector polygon in a vertical direction by using the planar two-dimensional vector polygon as a benchmark, to form K planar vector polygons in the three-dimensional space, wherein a k th planar vector polygon and a (k+1) th planar vector polygon in the K planar vector polygons are adjacent to each other in a vertical direction, and a height difference between the k th planar vector polygon and the (k+1) th planar vector polygon is a first preset value, wherein k=1, 2, . . . , K−1, and wherein K is a positive integer greater than 1;
perform point insertion processing on each side of each planar vector polygon in the K planar vector polygons, wherein a distance between two adjacent insertion points on each side is a second preset value;
construct an exterior facade polygon by using a boundary point of the k th planar vector polygon, an insertion point on a side of the k th planar vector polygon, a boundary point of the (k+1) th planar vector polygon, and an insertion point on a side of the (k+1) th planar vector polygon as vertexes; and
construct a top polygon by using the boundary point of the K th planar vector polygon, the insertion point on the side o

Assignees

• Huawei Tech Co Ltd

Inventors

• Chen Junliang
• Zhang Jun
• Wang Chao

Classifications

• G06T19/00

  Manipulating three-dimensional [3D] models or images for computer graphics · CPC title

• G06T2210/04

  Architectural design, interior design · CPC title

• H04L41/142

  using statistical or mathematical methods · CPC title

• H04B17/391

  Modelling the propagation channel · CPC title

• G06T15/04

  Texture mapping · CPC title