Method and device for inquiring map

• US 10,210,161 B2
• Filed: 01/16/2015
• Issued: 02/19/2019
• Est. Priority Date: 05/13/2014
• Status: Active Grant

• Current Assignee: Baidu Online Network Technology (Beijing) Co., Ltd (Baidu Incorporated)
• Original Assignee: Baidu Online Network Technology (Beijing) Co., Ltd (Baidu Incorporated)
• Inventors: Yin, Lei
• Primary Examiner(s): Dang, Thanh-Ha
• Application Number:
  US15/115,932
• Publication Number:
  US 20170169036A1
• Time in Patent Office: 1,495 Days
• Field of Search: 707724
• CPC Class Codes: G01C 21/10 by using measurements of speed or acceleration G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01C 21/3679 Retrieval, searching and output of POI information, e.g. hotels, restaurants, shops, filling stations, parking facilities G01C21/3611 takes precedence
• CPC Class Codes: G06F 16/00 Information retrieval; Database structures therefor; File system structures therefor
• CPC Class Codes: G06F 16/444 Spatial browsing, e.g. 2D maps, 3D or virtual spaces
• CPC Class Codes: G06F 16/9537 Spatial or temporal dependent retrieval, e.g. spatiotemporal queries

Abstract

A method and a device for inquiring a map are provided. The method includes receiving a query statement inputted by a user; performing a word segmentation on the query statement received to obtain a result of the word segmentation; extracting specific information related to a demand of the user from the result of the word segmentation; inquiring a route and/or a point of interest related to the specific information extracted in a map.

Claims

1. A method for inquiring a map, comprising:

receiving a query statement inputted by a user;

performing a word segmentation on the query statement received to obtain a result of the word segmentation;

extracting specific information related to a demand of the user from the result of the word segmentation;

inquiring a route and/or a point of interest related to the specific information extracted in a map;

acquiring road condition information of the route inquired at a time, if there is also information about the time in the specific information extracted;

calculating a travel time of the user in accordance with the route inquired, according to the route inquired and the road condition information acquired;

wherein inquiring a route related to the specific information extracted in a map, comprises;

determining a site as a terminal point of a route planning, if there is information about the site in the specific information extracted;

positioning a geographical position where the user is located to obtain a positioning result, and determining the positioning result as an origin of the route planning;

inquiring the route related to the specific information extracted in the map according to the origin and the terminal point determined;

wherein calculating a travel time of the user in accordance with the route inquired, comprises;

if a self-driving is employed, calculating the travel time of the user in accordance with the route inquired by a following formula;

2. The method of claim 1, wherein inquiring a point of interest related to the specific information extracted in a map, comprises:

inquiring the point of interest related to a site, if there is information about the site in the specific information extracted.

3. The method of claim 2, further comprising:

selecting a point of interest related to an event from the points of interest inquired, if there is also information about the event in the specific information extracted.

4. The method of claim 3, wherein selecting a point of interest related to an event from the points of interest inquired, comprises:

determining an action related to the event;

extracting a word with a better comment related to the action determined from comment information of the point of interest inquired;

calculating a contact strength between the word extracted and the event;

using the word extracted as a key word to select the point of interest related to the event from the points of interest inquired, if the contact strength calculated is in accordance with a predetermined condition.

5. The method of claim 4, wherein calculating a contact strength between the word extracted and the event, comprises:

if the word extracted is from a same comment content of a same point of interest, calculating the contact strength between the word extracted and the event by a following formula;

6. An apparatus for inquiring a map, comprising:

a receiving unit, configured to receive a query statement inputted by a user;

a word-segmenting unit, configured to perform a word segmentation on the query statement received to obtain a result of the word segmentation;

an extracting unit, configured to extract specific information related to a demand of the user from the result of the word segmentation;

an inquiring unit, configured to inquiry a route and/or a point of interest related to the specific information extracted in a map;

a road condition acquiring unit, configured to acquire road condition information of the route inquired at a time, if there is also information about the time in the specific information extracted;

a travel time calculating unit, configured to calculate a travel time of the user in accordance with the route inquired, according to the route inquired and the road condition information acquired;

wherein the inquiring unit comprises;

a terminal point determining sub-unit, configured to determine a site as a terminal point of a route planning, if there is information about the site in the specific information extracted;

an origin determining sub-unit, configured to position a geographical position where the user is located to obtain a positioning result, and to determine the positioning result as an origin of the route planning;

a route inquiring sub-unit, configured to inquiry the route related to the specific information extracted in the map according to the origin and the terminal point determined;

wherein if a self-driving is employed, the travel time calculating unit is configured to calculate the travel time of the user in accordance with the route inquired by a following formula;

7. The apparatus of claim 6, wherein the inquiring unit is configured to inquire the point of interest related to a site, if there is information about the site in the specific information extracted.

8. The apparatus of claim 7, further comprising:

an event selecting unit, configured to select a point of interest related to an event from the points of interest inquired, if there is also information about the event in the specific information extracted.

9. The apparatus of claim 8, wherein the event selecting unit comprises:

a related action determining sub-unit, configured to determine an action related to the event;

a comment information extracting sub-unit, configured to extract a word with a better comment related to the action determined from comment information of the point of interest inquired;

a contact strength calculating sub-unit, configured to calculate a contact strength between the word extracted and the event;

a point of interest selecting sub-unit, configured to use the word extracted as a key word to select the point of interest related to the event from the points of interest inquired, if the contact strength calculated is in accordance with a predetermined condition.

10. The apparatus of claim 9, wherein

if the word extracted is from a same comment content of a same point of interest, the contact strength calculating sub-unit is configured to calculate the contact strength between the word extracted and the event by a following formula:

11. A device, comprising:

one or more processors;

a memory;

one or more programs stored in the memory, when executed by the one or more processors, performing following operations;

receiving a query statement inputted by a user;

performing a word segmentation on the query statement received to obtain a result of the word segmentation;

extracting specific information related to a demand of the user from the result of the word segmentation;

inquiring a route and/or a point of interest related to the specific information extracted in a map;

wherein inquiring a route related to the specific information extracted in a map, comprises;

determining a site as a terminal point of a route planning, if there is information about the site in the specific information extracted;

positioning a geographical position where the user is located to obtain a positioning result, and determining the positioning result as an origin of the route planning;

inquiring the route related to the specific information extracted in the map according to the origin and the terminal point determined,

and performing following operations;

acquiring road condition information of the route inquired at a time, if there is also information about the time in the specific information extracted;

calculating a travel time of the user in accordance with the route inquired, according to the route inquired and the road condition information acquired,

wherein calculating a travel time of the user in accordance with the route inquired, comprises;

if a self-driving is employed, calculating the travel time of the user in accordance with the route inquired by a following formula;