US2018142911A1PendingUtilityA1

Method and apparatus for air purification and storage medium

Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO LTDPriority: Nov 23, 2016Filed: Nov 1, 2017Published: May 24, 2018
Est. expiryNov 23, 2036(~10.3 yrs left)· nominal 20-yr term from priority
F24F 2110/00F24F 11/30F24F 11/63F24F 2140/50F24F 11/62F24F 2130/00F24F 11/52F24F 3/16F24F 11/0086F24F 8/00G06V 20/36
42
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Claims

Abstract

A method and apparatus for air purification are provided. The method includes: acquiring an image of a room to be purified and determining a location at which the image is acquired; determining spatial capacity information of the room to be purified according to the image and the location; and performing air purification for the room to be purified using a purification strategy corresponding to the spatial capacity information.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method for air purification, comprising:
 acquiring an image of a room to be purified;   determining a location at which the image is acquired;   determining spatial capacity information of the room to be purified according to the image and the location; and   using a purification strategy corresponding to the spatial capacity information to perform air purification for the room to be purified.   
     
     
         2 . The method according to  claim 1 , wherein acquiring an image of a room to be purified comprises:
 acquiring the image of the room to be purified using an image acquisition device, wherein the image of the room to be purified comprises images of respective corner points of the room.   
     
     
         3 . The method according to  claim 1 , wherein acquiring an image of a room to be purified comprises:
 acquiring the image of the room to be purified by communicating with an apparatus comprising an image acquisition device, wherein the image of the room to be purified comprises images of respective corner points of the room.   
     
     
         4 . The method according to  claim 1 , wherein determining spatial capacity information of the room to be purified according to the image and the location comprises:
 performing identification to the image of the room to be purified to determine positions of corner points of the room to be purified; and   determining the spatial capacity information of the room to be purified based on the positions of the corner points and the location at which the image is acquired.   
     
     
         5 . The method according to  claim 4 , wherein performing identification to the image of the room to be purified to determine positions of corner points of the room to be purified comprises:
 determining wall intersecting lines within the room to be purified by comparing colors of shadows of respective walls in the image of the room to be purified; and   determining the position of each corner point of the room to be purified according to an intersection point of every three intersecting lines.   
     
     
         6 . The method according to  4 , wherein determining the spatial capacity information of the room to be purified based on the positions of the corner points and the location at which the image is acquired comprises:
 determining a first distance between a projection point of the location at which the image is acquired on a first plane of the room to be purified and each of the corner points on the first plane, based on the positions of the corner points and the location at which the image is acquired, wherein the first plane comprises a floor or ceiling of the room to be purified;   determining a second distance between every two corner points based on the positions of the corner points; and   determining the spatial capacity information of the room to be purified according to the first distances and the second distances.   
     
     
         7 . The method according to  claim 6 , wherein determining a first distance between a projection point of the location at which the image is acquired on a first plane of the room to be purified and each of the corner points on the first plane comprises:
 determining a first height of an image acquisition device from the first plane of the room to be purified, wherein the image of the room to be purified is acquired using the image acquisition device;   determining an angle between a first straight line determined by the image acquisition device and a corner point on the first plane and a vertical line passing the image acquisition device; and   calculating the first distance between the projection point of the location at which the image is acquired on the first plane and the corner point according to the first height and the angle.   
     
     
         8 . The method according to  claim 6 , wherein determining a first distance between a projection point of the location at which the image is acquired on a first plane of the room to be purified and each of the corner points on the first plane comprises:
 determining a second height of a distance measuring device from the first plane of the room to be purified;   acquiring, by the distance measuring device, a corner distance between the distance measuring device and the corner point on the first plane; and   calculating the first distance between the projection point of the location at which the image is acquired on the first plane and the corner point according to the second height and the corner distance.   
     
     
         9 . The method according to  claim 1 , wherein using a purification strategy corresponding to the spatial capacity information to perform air purification for the room to be purified comprises:
 determining a preset purification strategy corresponding to the spatial capacity information of the room to be purified according to a correspondence relationship between preset spatial capacity information for the room to be purified and preset purification strategies; and   performing the preset purification strategy to purify the air of the room to be purified.   
     
     
         10 . An apparatus for air purification, comprising:
 a processor;   a memory for storing processor executable instructions;   wherein the processor is configured to:
 acquire an image of a room to be purified; 
 determine a location at which the image is acquired; 
 determine spatial capacity information of the room to be purified according to the image and the location; and 
 use a purification strategy corresponding to the spatial capacity information to perform air purification for the room to be purified. 
   
     
     
         11 . The apparatus for air purification according to  claim 10 , wherein the processor is further configured to:
 acquire the image of the room to be purified using an image acquisition device, wherein the image of the room to be purified comprises images of respective corner points of the room.   
     
     
         12 . The apparatus for air purification according to  claim 10 , wherein the processor is further configured to:
 acquire the image of the room to be purified by communicating with an apparatus comprising an image acquisition device, wherein the image of the room to be purified comprises images of respective corner points of the room.   
     
     
         13 . The apparatus for air purification according to  claim 10 , wherein the processor is further configured to:
 perform identification to the image of the room to be purified to determine positions of corner points of the room to be purified; and   determine the spatial capacity information of the room to be purified based on the positions of the corner points and the location at which the image is acquired.   
     
     
         14 . The apparatus for air purification according to  claim 13 , wherein the processor is further configured to:
 determine wall intersecting lines within the room to be purified by comparing colors of shadows of respective walls in the image of the room to be purified; and   determine the position of each corner point of the room to be purified according to an intersection point of every three intersecting lines.   
     
     
         15 . The apparatus for air purification according to  claim 13 , wherein the processor is further configured to:
 determine a first distance between a projection point of the location at which the image is acquired on a first plane of the room to be purified and each of the corner points on the first plane, based on the positions of the corner points and the location at which the image is acquired, wherein the first plane comprises a floor or ceiling of the room to be purified;   determine a second distance between every two corner points based on the positions of the corner points; and   determine the spatial capacity information of the room to be purified according to the first distances and the second distances.   
     
     
         16 . The apparatus for air purification according to  claim 15 , wherein the processor is further configured to:
 determine a first height of an image acquisition device from the first plane of the room to be purified, wherein the image of the room to be purified is acquired using the image acquisition device;   determine an angle between a first straight line determined by the image acquisition device and a corner point on the first plane and a vertical line passing the image acquisition device; and   calculate the first distance between the projection point of the location at which the image is acquired on the first plane and the corner point according to the first height and the angle.   
     
     
         17 . The apparatus for air purification according to  claim 15 , wherein the processor is further configured to:
 determine a second height of a distance measuring device from the first plane of the room to be purified;   acquire, by the distance measuring device, a corner distance between the distance measuring device and the corner point on the first plane; and   calculate the first distance between the projection point of the location at which the image is acquired on the first plane and the corner point according to the second height and the corner distance.   
     
     
         18 . The apparatus for air purification according to  claim 10 , wherein the processor is further configured to:
 determine a preset purification strategy corresponding to the spatial capacity information of the room to be purified according to a correspondence relationship between preset spatial capacity information for the room to be purified and preset purification strategies; and   perform the preset purification strategy to purify the air of the room to be purified.   
     
     
         19 . A non-transitory computer readable storage medium having stored therein instructions that, when executed by an apparatus, cause the apparatus to perform a method for air purification, the method comprises:
 acquiring an image of a room to be purified;   determining a location at which the image is acquired;   determining spatial capacity information of the room to be purified according to the image and the location; and   using a purification strategy corresponding to the spatial capacity information to perform air purification for the room to be purified.

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