WO2018157541A1 - Procédé et dispositif de dessin de routes dans une carte électronique - Google Patents

Procédé et dispositif de dessin de routes dans une carte électronique Download PDF

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Publication number
WO2018157541A1
WO2018157541A1 PCT/CN2017/094135 CN2017094135W WO2018157541A1 WO 2018157541 A1 WO2018157541 A1 WO 2018157541A1 CN 2017094135 W CN2017094135 W CN 2017094135W WO 2018157541 A1 WO2018157541 A1 WO 2018157541A1
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WO
WIPO (PCT)
Prior art keywords
area
mobile terminal
map
collection point
location information
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PCT/CN2017/094135
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English (en)
Chinese (zh)
Inventor
黄朝志
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780012386.XA priority Critical patent/CN108700428B/zh
Publication of WO2018157541A1 publication Critical patent/WO2018157541A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/26—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 specially adapted for navigation in a road network
    • G01C21/34—Route searching; Route guidance
    • G01C21/36—Input/output arrangements for on-board computers

Definitions

  • the present application relates to the field of computer technology, and in particular, to a method and an apparatus for drawing a road in an electronic map.
  • mobile terminals such as mobile phones and car terminals have the functions of positioning and navigation, which bring a lot of convenience to people's travel.
  • the drawing and updating of electronic maps is a prerequisite for the implementation of positioning and navigation functions.
  • the accuracy of electronic maps affects the functional accuracy of mobile terminal navigation.
  • the mapping of electronic maps requires professional surveying and mapping personnel to survey buildings, roads, parks, lakes and other facilities to obtain basic geographic information. Then, through map drawing software, the information obtained by surveying and mapping is marked on the map. A detailed map of a city.
  • the embodiment of the present application provides a method and a device for drawing a road in an electronic map, and provides a low-cost and simple method for drawing a road in a map, which can realize real-time updating of the electronic map.
  • the embodiment of the present invention provides a method for drawing a road in an electronic map, comprising: a map server receiving location information of a collection point sent by a mobile terminal, where the location information is obtained by the mobile terminal at the collection point by positioning; The map server draws a road in the first area of the electronic map according to the location information of the collection point transmitted by the mobile terminal included in the first area of the electronic map.
  • the map server obtains the location information of the collection point through the mobile terminal, and provides a low-cost and simple method for drawing the road in the map, which can realize real-time updating of the electronic map.
  • an implementation manner in which the map server draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal included in the first area of the electronic map may be :
  • a road of a first width is generated with the line as an axis of symmetry.
  • an implementation manner in which the map server draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal included in the first area of the electronic map may be
  • the map server performs probability statistics on the location information of the collection point sent by the mobile terminal included in the first area of the electronic map, and the screening probability is greater than the first probability value, and according to the selected location point, linearly Generating or non-linear fitting algorithm to generate a line, and further, generating a first line in the first region of the electronic map with the line as an axis of symmetry The width of the road.
  • the map server simplifies the data processing process of the map server by filtering the collection points, so that the road drawing in the map is more convenient.
  • an implementation manner in which the map server draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal included in the first area of the electronic map may be
  • the map server performs probability statistics on the location information of the collection point sent by the mobile terminal included in the first area of the electronic map, and the screening probability is equal to the two sets of location points of the second probability value; the second probability value is smaller than the location Generating a maximum probability value of a position point in the first region, respectively generating a first line and a second line by a linear fitting or a nonlinear fitting algorithm according to the selected group of position points, and further, the first map on the electronic map In the area, a road is generated by using the first line and the second line as boundaries.
  • the map server simplifies the data processing process of the map server by filtering the collection points, so that the road drawing in the map is more convenient.
  • an implementation manner in which the map server performs probability statistics on location information of the collection point sent by the mobile terminal in the first area of the electronic map may be: the map server determines to be included in the electronic map. a weighting factor of the collection point sent by the mobile terminal in an area; using the weighting factor, applying a probability statistical formula to calculate a probability of occurrence of a collection point at each location point in the first area.
  • the map server determines the weights of the collection points, so that the road drawn by the selected collection points is closer to the real road, and the accuracy of the drawing is improved.
  • the location information further includes at least one of positioning identifier information, identification information of a mobile terminal, or a positioning accuracy factor, where the positioning identifier information is used to instruct the mobile terminal to locate the collection point.
  • the positioning method may be: determining, by the map server, a weighting factor of the collection point sent by the mobile terminal that is included in the first area of the electronic map, according to the positioning identification information, the identification information of the mobile terminal, or At least one of the positioning accuracy factors determines a weighting factor of the collection point.
  • the map server sets different weight factors for each collection point obtained by different positioning methods, different mobile terminals, and/or different positioning accuracy factors, so that the road drawn by the selected collection points is closer to the real one. Roads to improve the accuracy of the drawing.
  • the location information further includes identifier information of the mobile terminal that locates the collection point; the map server generates a road of a first width with the line as a symmetry axis in the first area of the electronic map. Previously, the map server may further determine the first width according to the identification information of the mobile terminal.
  • an implementation manner of determining, by the map server, the first width according to the identifier information of the mobile terminal may be: determining, according to the identifier information of the mobile terminal, the type of the mobile terminal, according to the type and The correspondence of the widths determines a first width corresponding to the type of the mobile terminal.
  • the map server may calculate the first width in the first area of the electronic map and generate the first width road by using the line as the symmetry axis; the first width is vertical The distance between two position points whose probability is the third probability value in the line direction.
  • the method further includes: the map server marking the update time of the road in the first area of the electronic map; the update time is used to indicate the latest update of the first area of the electronic map The time of the road to facilitate users to understand the latest update time of the road and improve the user experience.
  • the method further includes: the map server receives the tag information sent by the mobile terminal for the first location, and associates the tag information with the first location in the electronic map, so that the user understands Additional information on the road to improve the user experience.
  • the method further includes: the map server receiving an update request for the first area sent by the mobile terminal, where the map server sends the map data corresponding to the first area to the mobile terminal, After the mobile terminal receives the map data, the mobile terminal updates a map in the first area on the electronic map in the mobile terminal according to the map data.
  • the mobile terminal may update only the map data of the designated area of the user, and the update speed is fast, thereby avoiding excessive traffic loss of the mobile terminal.
  • the collection point in the second area location information K composing the data set R k; R k of the data set comprises at least one data set P i, P i of the data set in the map server
  • the i-th group of data received in the K-th area; the data group P i may include a data element P ij , and the data element P ij is location information of a j-th collection point in the data group P i ; i, j is a positive integer; after receiving the location information of the collection point sent by the mobile terminal, the map server may further add the data group composed of the location information of the collection point to the data set corresponding to the area where the collection point is located. .
  • the map server includes an activation area and an aging area; the activation area includes a data set corresponding to the second area; the aging area includes a data set corresponding to the third area; the method may further include:
  • the map server moves the corresponding data set in the second area to the aging area, and deletes the a road in the second area in the electronic map;
  • the map server When the map server receives the location point including the location point within the third area, moving the data set corresponding to the third area to the activation area; and the third in the electronic map A road drawn by the data set corresponding to the third area is added to the area.
  • the map server manages the received map data, and only the data in the active area can be drawn into a road and displayed in the electronic map.
  • the embodiment of the present application further provides a road drawing method in an electronic map, including: the mobile terminal acquires location information of the collection point by positioning, and sends the location information to a map server, so that the map server is After receiving the location information, the map server draws a road in the first area of the electronic map according to location information of the collection point sent by the mobile terminal in the first area of the electronic map.
  • the location information of the collection point is obtained by using the mobile terminal as the collection device, and is sent to the map server, so that the map server draws the road in the electronic map according to the location information of the collection point obtained by the mobile terminal.
  • the embodiment of the present application provides a low-cost and simple method for drawing a road in a map, which can realize real-time updating of an electronic map.
  • the location information of the collection point obtained by the mobile terminal by using the positioning system may include one of the following three implementation manners:
  • the mobile terminal after detecting that the strength of the satellite positioning signal is less than the first threshold and the strength of the mobile communication signal is less than the second threshold, acquires the location information of the collection point by inertial positioning or indoor positioning.
  • the mobile terminal According to the occasion category of the current location, the mobile terminal acquires the location information of the collection point by using a positioning method corresponding to the occasion category.
  • the third embodiment is as follows: the mobile terminal detects a currently available positioning method, and the available positioning method includes a first positioning method, and receives a selection instruction for the first positioning method, and acquires a location of the collection point by using the first positioning method. information.
  • the mobile terminal sending the location information to the map server may include one of the following implementation manners:
  • the mobile terminal sends the location information to a map server at a fixed period;
  • the second embodiment is: the mobile terminal caches the location information, and the cached location information is sent to the map server when the data size of the cached location information is not less than a storage threshold.
  • the mobile terminal may further receive the tag information for the first location, and send the tag information to the map server, so that the map server, after receiving the tag information, is in the electronic
  • the tag information is associated with the first location in the map, so that the user can understand other information of the road and improve the user experience.
  • the mobile terminal may further send an update request for the first area to the map server, so that after the map server receives the update request, the map server sends the map server to the mobile terminal.
  • the mobile terminal may update only the map data of the designated area of the user, and the update speed is fast, thereby avoiding excessive traffic loss of the mobile terminal.
  • the embodiment of the present application further provides a map server, including: a processor, a memory, and a communication interface;
  • the memory is for storing instructions and data
  • the processor is configured to read instructions and data stored in the memory, and perform the following operations:
  • the processor draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processor draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processor draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • the second probability value is smaller than the first The maximum probability value of the location point within the area
  • a road is generated with the first line and the second line as boundaries.
  • the processor performs probability statistics on the location information of the collection point sent by the mobile terminal in the first area of the electronic map, and specifically includes:
  • a probability statistical formula is applied to calculate a probability of occurrence of a collection point at each location point in the first region.
  • the location information further includes at least one of positioning identifier information, identification information of a mobile terminal, or a positioning accuracy factor, where the positioning identifier information is used to instruct the mobile terminal to locate the collection point.
  • a positioning method the processor determines a weighting factor of the collection point, specifically:
  • Determining a weighting factor of the collection point according to at least one of the positioning identification information, the identification information of the mobile terminal, or the positioning accuracy factor.
  • the location information further includes identifier information of the mobile terminal that locates the collection point; the processor generates a first width in the first area of the electronic map by using the line as a symmetry axis. Before the road, the processor is also used to execute:
  • the determining, by the processor, the first width according to the identifier information of the mobile terminal specifically includes:
  • the processor is further configured to: before generating a road of a first width with the line as an axis of symmetry in the first area of the electronic map, the processor is further configured to:
  • the processor is further configured to:
  • the update time is used to indicate the time of the most recent update of the road in the first area of the electronic map.
  • the processor is further configured to:
  • the first location in the electronic map is associated with the tag information.
  • the processor is further configured to:
  • the collection point in the second area location information K composing the data set R k; R k of the data set comprises at least one data set P i, P i of the data set in the map server
  • the i-th group of data received in the K-th area; the data group P i may include a data element P ij , and the data element P ij is location information of a j-th collection point in the data group P i ; I, j is a positive integer; after the processor receives the location information of the collection point sent by the mobile terminal by using the communication interface, the processor is further configured to:
  • the map server includes an activation area and an aging area; the activation area includes a data set corresponding to the second area; the aging area includes a data set corresponding to the third area; For execution:
  • the map server When the map server receives the location point including the location point within the third area, moving the data set corresponding to the third area to the activation area; and the third in the electronic map A road drawn by the data set corresponding to the third area is added to the area.
  • the embodiment of the present application further provides a mobile terminal, including: a processor, a memory, and a communication module;
  • the memory is for storing instructions and data
  • the processor is configured to read instructions and data stored in the memory, and perform the following operations:
  • the communication module Sending, by the communication module, the location information to a map server, so that after the location information is received by the map server, the map server is sent by the mobile terminal according to the first area included in the electronic map. Collecting location information of the point, drawing a road in the first area of the electronic map.
  • the processor acquires location information of the collection point by using a positioning system, and specifically includes:
  • the location information of the collection point After detecting that the strength of the satellite positioning signal is less than the first threshold and the strength of the mobile communication signal is less than the second threshold, acquiring the location information of the collection point by inertial positioning or indoor positioning; or
  • the available positioning method includes a first positioning method, receiving a selection instruction for the first positioning method, and acquiring location information of the collection point by using the first positioning method.
  • the processor sends the location information to the map server by using the communication module, which specifically includes:
  • the location information is cached by the memory, and the cached location information is sent to the map server by the communication module when the data size of the cached location information is not less than a storage threshold.
  • the mobile terminal further includes an input module, where the processor is further configured to:
  • the processor is further configured to:
  • the embodiment of the present application further provides a map server, including:
  • a receiving unit configured to receive location information of a collection point sent by the mobile terminal, where the location information is obtained by the mobile terminal by using the location at the collection point;
  • a processing unit configured to draw a road in the first area of the electronic map according to location information of the collection point sent by the mobile terminal included in the first area of the electronic map.
  • the processing unit draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processing unit draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processing unit draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • the second probability value is smaller than the first The maximum probability value of the location point within the area
  • a road is generated with the first line and the second line as boundaries.
  • the processing unit performs probability statistics on the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a probability statistical formula is applied to calculate a probability of occurrence of a collection point at each location point in the first region.
  • the location information further includes at least one of positioning identifier information, identification information of a mobile terminal, or a positioning accuracy factor, where the positioning identifier information is used to instruct the mobile terminal to locate the collection point.
  • a positioning method the processing unit determines a weighting factor of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • Determining a weighting factor of the collection point according to at least one of the positioning identification information, the identification information of the mobile terminal, or the positioning accuracy factor.
  • the location information further includes identifier information of the mobile terminal that locates the collection point, and the processing unit generates a first width in the first area of the electronic map by using the line as a symmetry axis.
  • the processing unit is also used to:
  • the processing unit is further configured to: before the road of the first width is generated by using the line as a symmetry axis in the first area of the electronic map, the processing unit is further configured to:
  • the processing unit is further configured to: before the road of the first width is generated by using the line as a symmetry axis in the first area of the electronic map, the processing unit is further configured to:
  • the processing unit is further configured to:
  • the update time is used to indicate the time of the most recent update of the road in the first area of the electronic map.
  • the receiving unit is further configured to: receive, by the mobile terminal, tag information for a first location;
  • the processing unit is further configured to associate the tag information in the first location in the electronic map.
  • the receiving unit is further configured to: receive an update request sent by the mobile terminal for the first area;
  • the map server further includes a sending unit, configured to send, to the mobile terminal, map data corresponding to the first area, so that after the mobile terminal receives the map data, the mobile terminal is configured according to the map data. Updating a map in the first area on the electronic map in the mobile terminal.
  • the collection point in the second area location information K composing the data set R k; R k of the data set comprises at least one data set P i, P i of the data set in the map server
  • the i-th group of data received in the K-th area; the data group P i may include a data element P ij , and the data element P ij is location information of a j-th collection point in the data group P i ; i, j is a positive integer; after receiving the location information of the collection point sent by the mobile terminal, the processing unit is further configured to:
  • the receiving unit After the receiving unit receives the location information of the collection point sent by the mobile terminal, the data group composed of the location information of the collection point is added to the data set corresponding to the region where the collection point is located.
  • the map server includes an activation area and an aging area; the activation area includes a data set corresponding to the second area; the aging area includes a data set corresponding to the third area; to:
  • the map server moves the corresponding data set in the second area to the aging area, and deletes the a road in the second area in the electronic map;
  • the map server When the map server receives the location point including the location point within the third area, moving the data set corresponding to the third area to the activation area; and the third in the electronic map A road drawn by the data set corresponding to the third area is added to the area.
  • the embodiment of the present invention further provides a mobile terminal, including:
  • An acquiring unit configured to acquire location information of the collection point by using a positioning
  • a sending unit configured to send the location information to a map server, so that after the location information is received by the map server, the map server is sent by the mobile terminal according to the first area included in the electronic map. Collecting location information of the point, drawing a road in the first area of the electronic map.
  • the acquiring unit acquires the location information of the collection point by using the positioning system, and specifically includes:
  • the location information of the collection point After detecting that the strength of the satellite positioning signal is less than the first threshold and the strength of the mobile communication signal is less than the second threshold, acquiring the location information of the collection point by inertial positioning or indoor positioning; or
  • the currently available positioning mobile terminal is detected, and the available positioning method includes a first positioning method, and receives a selection instruction for the first positioning method, and acquires location information of the collection point by using the first positioning method.
  • the sending unit sends the location information to a map server, specifically:
  • the sending unit is configured to send the location information to a map server at a fixed period;
  • the mobile terminal further includes a storage unit, configured to cache the location information, and the sending unit is further configured to: when the data size of the cached location information is not less than a storage threshold, the cached location information to the map server.
  • the acquiring unit is further configured to: receive tag information for the first location;
  • the sending unit is further configured to: send the tag information to the map server, so that after receiving the tag information, the map server associates the tag information with the first location in an electronic map. .
  • the sending unit is further configured to: send an update request for the first area to the map server, so that after the map server receives the update request, the map server sends Transmitting, by the mobile terminal, map data corresponding to the first area;
  • the obtaining unit is further configured to: receive the map data sent by the map server;
  • the mobile terminal further includes a processing unit, configured to: update a map in the first area on the electronic map in the mobile terminal according to the map data.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores one or more computer programs, and the map server is configured to run the one or more computer programs.
  • a method of drawing a road in an electronic map of the above first aspect is performed.
  • the embodiment of the present application further provides a computer readable storage medium, where the computer readable storage medium stores one or more computer programs, and the mobile terminal is configured to run the one or more computer programs.
  • a method of drawing a road in an electronic map of the second aspect described above is performed.
  • FIG. 1 is a schematic frame diagram of a mapping system provided by an embodiment of the present application.
  • FIG. 2 is a schematic explanatory diagram of a selected interface of a positioning method according to an embodiment of the present application
  • FIG. 3 is a schematic flowchart of a method for drawing a road in an electronic map according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a first electronic map drawing method according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a second electronic map drawing method according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a schematic diagram of a method for drawing a road in a third electronic map according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a schematic diagram of a method for drawing a road in a fourth electronic map according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a first width calculation method according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of an electronic map display interface according to an embodiment of the present application.
  • FIG. 10 is a structural structural diagram of a mobile terminal according to an embodiment of the present disclosure.
  • FIG. 11 is a structural structural diagram of another mobile terminal according to an embodiment of the present disclosure.
  • FIG. 12 is a structural diagram of a map server according to an embodiment of the present application.
  • FIG. 13 is a structural structural diagram of another map server according to an embodiment of the present application.
  • FIG. 1 is a schematic frame diagram of a map drawing system according to an embodiment of the present application.
  • the mapping system may include a map server 11, a mobile terminal 12, a satellite positioning system 13, a base station positioning system 14, an indoor positioning system 15, and the like.
  • the map server 11 is configured to draw a map according to the location information reported by the mobile terminal 12; the mobile terminal 12 may acquire the location information of the at least one collection point by using at least one of the satellite positioning system 13, the base station positioning system 14, or the indoor positioning system 15. And reported to the map server 11 by means of wireless communication or wired communication.
  • the mobile terminal 12 may be an in-vehicle terminal located on a vehicle, such as an onboard unit (OBU) or a TBox (telematics box).
  • the in-vehicle terminal can directly communicate with the map server and report the location information, or can transmit the location information to the map server through a portable mobile terminal communicably connected to the in-vehicle unit, such as a smart phone or a tablet computer.
  • the mobile terminal 12 can also be a portable mobile terminal such as a smart phone, a smart bracelet, a smart glasses, a smart watch, or the like, and a tablet computer.
  • the satellite positioning system 13 may include a Global Positioning System (GPS), a BeiDou Navigation Satellite System (BDS), and the like.
  • GPS Global Positioning System
  • BDS BeiDou Navigation Satellite System
  • the base station positioning system 14 may include at least one base station.
  • the base station positioning is generally applied to a mobile terminal including a Subscriber Identification Module (SIM), such as a mobile phone.
  • SIM Subscriber Identification Module
  • the mobile phone base station location service is also called a Location Based Service (LBS). It acquires mobile terminal users through the network of the telecom mobile operator (such as Global System for Mobile Communication (GSM)).
  • GSM Global System for Mobile Communication
  • Location information (such as latitude and longitude coordinates), a value-added service that provides users with corresponding services, supported by an electronic map platform.
  • the indoor positioning system 15 can be a wireless local area network composed of at least one wireless access point, and can include: a network composed of Wi-Fi, Bluetooth, infrared, ultra-wideband, radio frequency identification (RFID), ZigBee, and ultrasound. It can be understood that when the satellite signal is weak when it reaches the ground or when the indoor positioning signal cannot penetrate the building, the positioning can be performed by the indoor positioning system.
  • RFID radio frequency identification
  • the mobile terminal 12 can acquire location information of at least one collection point through the satellite positioning system 13, the base station positioning system 14, or the indoor positioning system 15, and the like.
  • the mobile terminal 12 can be positioned by inertial positioning.
  • the motion sensor is used to track the motion trajectory of the mobile terminal, and may include at least one of an accelerometer, a gyroscope, a magnetic sensor, an altitude sensor, and the like. Inertial positioning can accurately position the mobile terminal in combination with the above positioning method. It can be understood that the mobile terminal 12 can acquire the motion parameters such as the moving direction and the moving speed through the motion sensor, thereby acquiring the motion trajectory of the mobile terminal 12. When there is no positioning signal, the mobile terminal 12 can perform indoor positioning by using the motion sensor.
  • the mobile terminal 12 can track the motion track of the mobile terminal through the motion sensor, and acquire the motion track when the GPS signal is acquired.
  • the position information corresponding to the GPS positioning is used to calculate the position information of each point on the motion track.
  • the mobile terminal 12 may also perform positioning by using multiple positioning methods, which is not limited in this application.
  • the mobile terminal can be located by a combination of one or more of the above satellite positioning, base station positioning, indoor positioning, or inertial positioning methods. Different positioning methods can be selected in different scenarios.
  • the method for selecting a positioning method for a mobile terminal according to an embodiment of the present application is described below.
  • the mobile terminal when detecting that the strength of the satellite positioning signal is less than the first threshold and the strength of the mobile communication signal is less than the second threshold, the mobile terminal may acquire location information of the at least one collection point by using inertial positioning or indoor positioning. For example, the mobile terminal can detect the strength of the satellite positioning signal, such as a GPS signal. When the strength of the GPS signal is less than the first threshold (eg, -200 dbm), the current GPS signal is weak, and the mobile terminal can detect the strength of the mobile communication signal.
  • the first threshold eg, -200 dbm
  • the mobile terminal can turn on the inertial positioning, and the motion trajectory of the mobile terminal is recorded in real time by inertial positioning, according to which the geographical coordinates of the moving trajectory have been Knowing the collection point, calculating the geographic coordinates corresponding to each collection point of the movement trajectory, thereby obtaining the geographical coordinates of each collection point.
  • the second threshold for example, -100 dbm
  • the mobile terminal can detect whether it supports inertial positioning.
  • the mobile terminal can be positioned by inertia. While the mobile terminal is positioned by inertia, it can also maintain the open state of other positioning methods, and combine with other positioning methods to perform positioning to obtain the position information of each collection point.
  • the mobile terminal may identify the location category of the location according to the current location, and obtain the location information of the collection point by using a positioning method corresponding to the occasion category. For example, when the current location is a parking lot, and the mobile terminal supports inertial navigation, the inertial navigation can be turned on, and the mobile terminal can obtain location information by inertial positioning; when the current location is outdoor, the mobile terminal can acquire location information through the satellite positioning system; When the current location is a shopping mall or a building, the mobile terminal may acquire location information by means of base station positioning or indoor positioning.
  • the mobile terminal may detect the currently available positioning method, and output (such as display) an available positioning method to the user of the mobile terminal, where the available positioning method may include the first positioning method, and the mobile terminal is connected. After receiving the selected instruction for the first positioning method, the location information of the at least one collection point is obtained by the first positioning method.
  • FIG. 2 is a schematic explanatory diagram of a positioning method selected by the positioning method provided by the embodiment of the present application.
  • the interface 20 includes a list of positioning methods supported by the mobile terminal, and indicates the available positioning methods of the current location, and recommends the most accurate positioning method under the current location.
  • the user can select a positioning method, such as base station positioning, and the mobile terminal acquires the location information of the collection point through GPS positioning.
  • the GPS positioning method is available when the mobile terminal detects that the intensity of the satellite positioning signal (eg, GPS signal) at the current location is greater than a third threshold (eg, -200 dbm).
  • the base station positioning method is available when the mobile terminal detects that the strength of the mobile communication signal at the current location is greater than a fourth threshold (eg, -100 dbm).
  • the indoor positioning method is available if the mobile terminal detects that the wireless access point around the current location supports positioning.
  • the inertial positioning method is available when the mobile terminal supports inertial positioning.
  • the mobile terminal can also display the most accurate positioning method under the current position according to the positioning accuracy factor of various positioning methods.
  • FIG. 3 is a schematic flowchart of a method for drawing a road in an electronic map according to an embodiment of the present application.
  • the method of drawing the road in the electronic map includes some or all of the following processes:
  • Step S310 The mobile terminal acquires location information of at least one collection point.
  • the location information may be geographic coordinates acquired by the positioning system, such as (longitude, latitude), and the location information may also include a height, such as (longitude, latitude, altitude).
  • the location information of the collection point may further include a positioning time of the collection point.
  • the positioning time may be a point in time when the mobile terminal acquires the geographic coordinates of the collection point.
  • the mobile terminal may acquire the geographic coordinates of the current location by using a positioning system such as GPS, BDS, etc., or obtain the geographic coordinates of the current location by using the method of positioning the base station, and may also perform positioning, indoor positioning, or inertial positioning through the base station.
  • the method gets the geographic coordinates of the current location.
  • a positioning system such as GPS, BDS, etc.
  • the method gets the geographic coordinates of the current location.
  • the location information may further include location identification information, a location information of the mobile terminal, and/or a positioning accuracy factor, which are used to indicate a location method for acquiring the geographic coordinates of the collection point.
  • the positioning identification information is used to identify the positioning method adopted by the collection point.
  • the positioning method may include, but is not limited to, satellite positioning, base station positioning, indoor positioning, inertial positioning, and the like.
  • the identification information of the mobile terminal is used to identify the mobile terminal, and the map server can identify the type of the mobile terminal according to the identifier of the mobile terminal.
  • Terminal types may include, but are not limited to, mobile phones, in-vehicle terminals, wearable devices, and the like.
  • the positioning accuracy factor is used to indicate the accuracy or credibility of the positioning, and the positioning accuracy factor may include a satellite positioning accuracy factor (eg, a GPS positioning accuracy factor, a BDS positioning accuracy factor), a base station positioning accuracy factor, and an indoor positioning accuracy factor (eg, WiFi positioning factor), inertial positioning accuracy factor, etc.
  • the mobile terminal may calculate a GPS positioning accuracy factor or a BDS positioning precision factor corresponding to the collection point according to the positioning method, the position of the satellite participating in the positioning, and the acquired location of the collection point; similarly, the mobile terminal may participate in the positioning according to the positioning method.
  • the mobile terminal may also according to the positioning method, the location of the wireless access point (WiFi access point) participating in the positioning, and the acquired acquisition
  • the position of the point calculates the WiFi positioning accuracy factor corresponding to the collection point.
  • the mobile terminal can determine the inertial positioning accuracy factor according to information such as the sensitivity of the built-in motion sensor. It can be understood that the inertial positioning accuracy factor is a fixed value regardless of the position of the collection point.
  • Step S320 The mobile terminal sends the acquired location information to the map server.
  • the mobile terminal may send the acquired location information to the server through the communication network.
  • the manner in which the mobile terminal sends location information includes, but is not limited to, the following three methods:
  • the first mode the mobile terminal can transmit the location information in a fixed cycle.
  • the mobile terminal can report once every time T (such as 30s).
  • the second mode the mobile terminal can cache the location information.
  • a storage threshold such as 1 kb, 2 kb, etc.
  • the third mode the mobile terminal can acquire the location information in real time when the positioning is started, and send and send all the location information acquired during the positioning process after the positioning is completed.
  • the mobile terminal when the mobile terminal cannot connect to the network, the mobile terminal can cache the location information, and after connecting to the network, send the location information to the map server.
  • Step S330 The map server receives the location information of the at least one collection point sent by the at least one mobile terminal, and draws the road according to the location information of the collection point in the first area on the first area of the electronic map.
  • the map server may divide the received collection point according to the location information (such as geographic coordinates) of the collection point, and the area corresponds to the road drawn by the collection point in the area.
  • the location information of the collection points in each area constitutes a data set, and the data in the corresponding data set of the area is used to draw the road corresponding to the area.
  • the drawn road may include a straight line, a curved road, a combination thereof, or the like.
  • the method for the map server to partition the received collection points may include manual division and automatic division.
  • the map server can output the collection points. For example, the collected collection points are displayed on the map.
  • the management personnel of the map server can manually divide the collection points according to the distribution characteristics of the collection points, and the map server receives the input for the first area.
  • the dividing instruction divides the location information of the collection point in the first area into the data set corresponding to the first area.
  • the map server can divide the area according to the distribution characteristics of the collection points.
  • the characteristics of the distribution may include a concentrated trend of the distribution, a shape of the distribution, and/or a degree of dispersion of the distribution, and the like.
  • the map server can also segment regions by length threshold segmentation.
  • the map server may predict the approximate direction and position of the drawn road according to the distribution trend of the collection point, and divide a threshold with a certain width (for example, 4 m, 5 m) along the threshold of each length in the prediction direction (for example, 1 m, 3 m, etc.). Area).
  • map server maps the roads in the electronic map:
  • the map server may draw an electronic map based on location information sent by one or more mobile terminals.
  • the map server may generate a line of the mobile terminal by using a linear fitting or a nonlinear fitting algorithm according to the received location information of the collected point, and generate a first width on the first area of the electronic map with the line as a symmetry axis. path of.
  • the map server may select a suitable linear fitting algorithm or a nonlinear fitting algorithm according to the distribution characteristics of the collected points in the first region.
  • FIG. 4 is a schematic diagram of a first electronic map drawing method according to an embodiment of the present application.
  • the first area 400 includes collection points A, B, C, D, and E. , F.
  • Map server can pass A straight line fit (such as a least squares method) generates a straight line 401, and a straight line 401 is used as a symmetry axis to generate a road 402 of a first width d.
  • a straight line fit such as a least squares method
  • FIG. 5 is a schematic diagram of a second electronic map drawing method according to an embodiment of the present application.
  • the first area 500 includes collection points A, B, C, and D.
  • the map server may generate a curve 501 by curve fitting (such as polynomial fitting) and then generate a road 502 of a first width d with the curve 501 as a central axis.
  • curve fitting such as polynomial fitting
  • the collection points are mainly concentrated in the middle area of the road, and the collection points concentrated in the middle area of the road can determine the lines of the road. In the direction perpendicular to the line, the probability of each position decreases as the distance of the position from the line increases.
  • the map server may perform probability statistics on the location information of the collection points on the first area, and filter the position points whose probability is greater than the first probability value, and generate a line by a linear fitting or a nonlinear fitting algorithm according to the selected position points, and then On the first area of the electronic map, a road of a first width is generated with the line as an axis of symmetry.
  • the group P i may include a data element P ij , and the data element P ij is position information of the jth collection point in the data group P i .
  • the mobile terminal completes a data group consisting of the location information of the collection point in the acquisition process in the Kth area.
  • i, j is a positive integer.
  • the mobile terminal does not change, the positioning method can be changed, and the positioning accuracy factors of the collection points are different at different positions or positioning methods.
  • the embodiment of the present application describes the collection point as a two-dimensional geographic coordinate as an example:
  • the first mobile terminal can be the same or different terminal as the second mobile terminal.
  • the first region is x 1 ⁇ x ⁇ x 2 and y 1 ⁇ y ⁇ y 2 .
  • the position point of f(x, y) ⁇ a is selected, and a is the first probability value. It can be understood that 0 ⁇ a ⁇ 1.
  • a is that the first probability value may be a fixed value, such as 0.04, 0.12 or 0.15, etc., a may also be determined according to the probability distribution f(x, y).
  • the minimum number N of the filtered position points may be set such that the number of position points of f(x, y) ⁇ a is equal to or the value of a closest to the minimum number N is the first probability value.
  • the map server may generate a line of the mobile terminal by using a linear fitting or a nonlinear fitting algorithm as shown in FIG. 4 or FIG. 5 according to the selected position point, and on the first area in the electronic map, the line A road of the first width is generated for the axis of symmetry.
  • FIG. 6 is a schematic diagram of a method for drawing a road in a third electronic map according to an embodiment of the present application.
  • the map server may divide the first area 600 into a plurality of micro-areas by a cross-hatching dashed line as shown in FIG. 6A, and perform collection points in each micro-area (as marked by the point in FIG. 6 in FIG. 6).
  • the point is the selected position point (the point marked with ⁇ in Fig. 6B).
  • the line 601 of the mobile terminal is generated by a linear fitting or nonlinear fitting algorithm according to the selected position point, and is in the first area 600 in the electronic map, the line 601 A road 602 of a first width d is generated for the axis of symmetry.
  • the collection points are concentrated in the central area of the road.
  • the probability that the collection point appears in the middle area of the road is the largest, and the probability of occurrence of the collection point at each position decreases with the increase of the distance between the position and the central area. small.
  • FIG. 7 is a schematic diagram of a method for drawing a road in a fourth electronic map according to an embodiment of the present application.
  • the map server may perform probability statistics on the location information of the collected points on the first area 700, and the two sets of location points whose screening probability is equal to the second probability value, that is, the first group of collection points 701 and the second group of collection points 702.
  • the second probability value is smaller than the maximum probability value of the location point on the first region.
  • the map server generates the first line 703 and the second line 704 by a linear fitting or nonlinear fitting algorithm as shown in FIG. 4 or FIG. 5 respectively according to the selected set of position points, and further, the first in the electronic map.
  • a road 705 is generated with the first line 703 and the second line 704 as boundaries.
  • a mobile terminal such as a mobile phone that is carried on a pedestrian can pass on a narrow road, or can walk on a non-road (such as a lawn, etc.), and thus the walking path of the pedestrian is generally uncontrollable.
  • Vehicle-mounted terminals are usually mounted on vehicles, and vehicles generally have a large width, and usually vehicles can only travel on roads.
  • the method of drawing an electronic map based on the position information of the collection point positioned by the mobile phone may be different from the method of drawing an electronic map based on the position information of the collection point positioned by the vehicle terminal.
  • the map server may set different weight factors for the collection points that are located by different terminal types, positioning methods, and/or positioning accuracy factors in the process of drawing the road through the location information of the collection points.
  • the weighting factor can be applied to the probability statistics of the above-mentioned collection points, so that the parameters such as the position and width of the road of the electronic map drawn by the collection point are closer to the real road.
  • the map server can set the terminal or terminal type and its corresponding terminal weight factor, for example, see Table 1.
  • the map server can set the positioning method and its corresponding positioning weight factor, for example, see Table 2.
  • the map server can set the positioning accuracy factor and its corresponding precision weighting factor.
  • the weighting factor ⁇ ij of the collection point P ij is equal to the product of at least one of the terminal weighting factor ⁇ i , the positioning weighting factor ⁇ ij , and the precision weighting factor ⁇ ij .
  • the probability of a collection point with a position (x, y) in the first region is f(x, y):
  • a method for drawing a road in an electronic map is described by taking a collection point in a two-dimensional space as an example.
  • the method for drawing a road in various electronic maps provided by the present application is applicable to a collection point in a three-dimensional space.
  • the location information may include an identifier of the mobile terminal, and the map server determines the first width according to the identifier of the mobile terminal.
  • the map server may identify the type of the mobile terminal according to the identifier of the mobile terminal.
  • the road segment corresponding to the first area may drive the vehicle, and the map server may be based on the width of the vehicle.
  • Set the first width for example, the first width is 3m.
  • the first width may be set to a first width, such as the first width, based on the size of the person. It is 1m.
  • the map server can calculate the first width according to the degree of dispersion of the collected points in the first area, where The first width is the distance between two position points whose probability is a third probability value perpendicular to the line direction. This line is the axis of symmetry of the road. Please refer to FIG. 8.
  • FIG. 8 is a schematic diagram of a first width calculation method according to an embodiment of the present application.
  • the map server can count the probability of each location point, see the probability calculation method shown in equation (2) and formula (3). Generally, in the direction perpendicular to the line, the probability of each position decreases as the distance of the position from the line increases, such as the normal distribution curve shown in FIG. The distance d between the two position points A and B whose probability is the third probability value P in the direction perpendicular to the line.
  • the location information of the collection point may include a positioning time of the collection point.
  • the map server can determine the direction of travel of the road formed by the data set based on the received data set.
  • the location information of the collection point reported by the ith mobile terminal in the ith area by using one or more positioning methods may constitute the data group P i
  • the data group P i may include the location information of the collection points arranged in the order of the positioning time ( That is, the data element P ij )
  • the mobile terminal can determine the moving direction of the mobile terminal according to the location information of each collection point in the data group.
  • the data set of all R k dataset to determine the moving direction of the same data set the data set through R k road drawn as one-way travel direction thereof coincides with the moving direction of the mobile terminal.
  • the road drawn by the data set R k is a two-lane road.
  • the map server may determine location information of the road travel direction by selecting location information of the collection point uploaded by the vehicle terminal in the data group.
  • the mobile terminal may further send the tag information for the first location to the map server, the map server receives the tag information, and associates the tag information with the first location in the electronic map.
  • the first location may be a location point or a location area.
  • the tag information may be at least one of text, picture, video, audio, and the like.
  • the association may be by adding tag information at the first location, or creating a link at the first location, linking the tag information, and the like.
  • the first location is the location of the elevator
  • the mobile terminal can send the marking information to the location of the elevator.
  • the marking information is “elevator”
  • the map server can add the text “elevator” or the icon of the elevator in the first location.
  • the map server may also update the time in the electronic map for the road markings in each area.
  • This update time is used to indicate the time of the most recent update of the road in the area.
  • the update time may be the time when the collection point in the area is received last time, or may be the average value of the collection time of each collection point in the data group received last time, which is not limited in this application. It can be understood that the mobile terminal and/or the map server can display the electronic map display interface.
  • FIG. 9 is a schematic structural diagram of an electronic map display interface according to an embodiment of the present application.
  • the electronic map display interface 90 includes a first area 910, a second area 920, and a third area 930.
  • the first area 910 includes a road 911, and the update time of the road 911 is "14:00 on July 3".
  • the second area 920 includes a road 921, and the update time of the road 921 is "9:00 on June 26".
  • the first area 930 includes the road 931, and the update time of the road 931 is "10:00 on October 10".
  • the update time can be directly displayed on the corresponding road as shown in FIG. 9, or an icon can be added in the area where the road is located. When the map of the area where the icon is located is clicked or enlarged, the update time is displayed in the area where the road is located.
  • the mobile terminal may further send an update request for the first area to the map server, and the map server receives the update request, and sends the map data corresponding to the first area to the mobile terminal, where the mobile terminal receives the After the map data, the map of the first area on the electronic map is updated.
  • the mobile terminal may send an update request for the first area to the map server, the update request carries the update time of the first area, and the local map server determines the received update.
  • the first area of the electronic map on the mobile terminal side is the latest map, and no update is required, otherwise, the first is sent to the mobile terminal.
  • the map data corresponding to the area the mobile terminal receives the map data and updates the map of the first area on the electronic map.
  • the map server receives location information of at least one collection point sent by the plurality of mobile terminals. It can be assumed that the location information of the collection point reported by the ith mobile terminal in the Kth area by using one or more positioning methods may constitute a data group P i , and the data group P i may include the data element P ij , and P ij is the ith movement The position information of the jth collection point reported by the terminal, and i, j is a positive integer. The data group P ij participates in the generated road in the Kth area, and all data groups P i in the Kth area constitute the data set R k .
  • the map server can divide two data areas for the location information in each area: an active area and an aging area.
  • the activation area includes at least one data set, wherein the map server draws an electronic map by using the electronic map drawing method described in the above embodiment based on the collection points in the active area, that is, the collection points in the data set R k in the active area are generated and generated.
  • the collection points in the aging zone are not involved in drawing an electronic map. Data in the active and aging zones can be transferred.
  • the data group composed of the location information of the collection point is added to the data set corresponding to the area where the collection point is located, and the data set is divided into the activation area.
  • the activation area may include a data set corresponding to the second area.
  • the map server can determine whether the collection point received in the first time period is not in the second area, and if so, it is considered that the road segment in the second area has no people or vehicles involved in the first time period, and the map server can The data set in the second area is moved to the aging area. At this time, the map server may update the electronic map to delete the road section in the second area on the electronic map; otherwise, the road section in the second area is in the first time period. Or the car is involved, the corresponding data set of the second area remains in the active area.
  • the aging zone may include a data set corresponding to the third zone.
  • the map server may determine whether the reported collection point is within the range of the third area, if the data set corresponding to the third area is moved to the activation area. At this time, the map server may update the electronic map, and add a road segment drawn by the data set corresponding to the third area on the electronic map; otherwise, the data set corresponding to the third area remains in the aging area.
  • FIG. 10 is a structural structural diagram of a mobile terminal according to an embodiment of the present application.
  • the mobile terminal 100 includes:
  • the obtaining unit 101 is configured to acquire location information of the collection point by using positioning;
  • the sending unit 102 is configured to send the location information to the map server, so that after the map server receives the location information, the map server is included by the mobile terminal 100 according to the first area included in the electronic map.
  • the location information of the transmitted collection point is drawn in the first area of the electronic map.
  • the acquiring unit 101 acquires location information of a collection point by using a positioning system, and the specific package include:
  • the location information of the collection point After detecting that the strength of the satellite positioning signal is less than the first threshold and the strength of the mobile communication signal is less than the second threshold, acquiring the location information of the collection point by inertial positioning or indoor positioning; or
  • the available positioning method includes a first positioning method, receiving a selection instruction for the first positioning method, and acquiring location information of the collection point by using the first positioning method.
  • the sending unit 102 sends the location information to a map server, specifically:
  • the sending unit 102 is configured to send the location information to a map server at a fixed period;
  • the mobile terminal 100 further includes a storage unit for buffering the location information.
  • the sending unit 102 is further configured to: when the data size of the cached location information is not less than a storage threshold, the cached location information to the map server.
  • the acquiring unit 101 is further configured to: receive tag information for the first location;
  • the sending unit 102 is further configured to: send the tag information to the map server, so that after receiving the tag information, the map server associates the tag with the first location in an electronic map. information.
  • the sending unit 102 is further configured to: send an update request for the first area to the map server, so that after the map server receives the update request, the map server Sending, to the mobile terminal 100, map data corresponding to the first area;
  • the obtaining unit 101 is further configured to: receive the map data sent by the map server;
  • the mobile terminal 100 further includes a processing unit, configured to: update a map in the first area on the electronic map in the mobile terminal 100 according to the map data.
  • the mobile terminal acquires the location information of the collection point by positioning, and sends the location information to the map server, so that after the location information is received by the map server, the first information is included in the electronic map.
  • the location information of the collection point sent by the mobile terminal in the area, and the road is drawn in the first area of the electronic map.
  • the embodiment of the present application obtains the location information of the collection point by using the mobile terminal as the collection device, and provides a low-cost and simple method for drawing the road in the electronic map, which can realize real-time updating of the electronic map.
  • FIG. 11 is a structural diagram of another mobile terminal according to an embodiment of the present disclosure.
  • the mobile terminal 110 may include a processor 111 and a memory 112.
  • the input module 113, the output module 114, the communication module 115, and the sensor 106 can be connected to the memory 112, the input module 113, the output module 114, the communication module 115, and the sensor 106 via a bus 117.
  • the input module 103, the output module 114, and the sensor 116 are not necessary components of the mobile terminal 110 in the embodiment of the present application.
  • the mobile terminal 110 may not include the input module 113, the output module 114, and the motion sensor 106.
  • a road drawing method in an electronic map described in the embodiment of the present application is implemented.
  • the processor 111 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 111 is a CPU, the CPU may be a single core CPU or a multi-core CPU. .
  • the processor 111 connects various portions of the entire mobile terminal 110 using various interfaces and lines, by running or executing computer programs and/or modules stored in the memory 112, and invoking data stored in the memory 112. The various functions of the terminal and the processing data are used to perform overall monitoring of the mobile terminal 110.
  • Memory 112 is used to store instructions and data.
  • Memory 112 includes, but is not limited to, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory), or portable read only memory (CD-ROM), Memory 112 is used for related instructions and data.
  • RAM random access memory
  • ROM read only memory
  • EPROM erasable programmable read only memory
  • CD-ROM portable read only memory
  • Memory 112 is used for related instructions and data.
  • the memory 112 is also used to store location information of the collection points involved in the present application.
  • the input module 113 can be used to receive input numeric or character information, as well as to generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function controls.
  • the input module 113 can include a touch-sensitive surface 1131 as well as other input modules.
  • Touch-sensitive surface 1131 also referred to as a touch display panel or trackpad, can collect touch operations on or near the user (eg, the user uses a finger, stylus, etc., on any touch-sensitive surface 1131 or on the touch-sensitive surface 1131 The operation near the touch-sensitive surface 1131) and driving the corresponding connecting device according to a preset program.
  • the touch-sensitive surface 1131 may include two parts of a touch detection device and a touch controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 111 is provided and can receive commands from the processor 111 and execute them.
  • the touch sensitive surface 1131 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input module 113 can also include other input modules.
  • the other input modules 1131 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • FIG. 11 shows the input module 113, it can be understood that it does not belong to the necessary configuration of the terminal, and can be omitted as needed within the scope of not changing the essence of the invention.
  • the output module 114 can be used to display information input by the user or information provided to the user and various graphical user interfaces of the terminal (such as the mobile track display interface described in the embodiment of the present invention), and the graphical user interfaces can be represented by graphics , text, icons, videos, and any combination of them.
  • the output module 114 can include a display panel 1141.
  • the display panel 1141 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the touch-sensitive surface 1131 may cover the display panel 1141, and when the touch-sensitive surface 1131 detects a touch operation thereon or nearby, it is transmitted to the processor 1101 to determine the type of the touch event, and then the processor 111 according to the touch event The type provides a corresponding visual output on the display panel 1141.
  • the touch-sensitive surface 1131 and the display panel 1141 are implemented as two separate components to implement input and input functions, in some embodiments, the touch-sensitive surface 1131 can be integrated with the display panel 1141 to implement input. And output function.
  • FIG. 11 shows the output module 114, it can be understood that it does not belong to the essential configuration of the terminal, and may be omitted as needed within the scope of not changing the essence of the invention.
  • the communication module 115 is configured to establish a communication channel, and the mobile terminal 110 is connected to the communication peer through the communication channel, such as a satellite, a base station or a server, and the like, and interacts with the communication peer through the communication channel.
  • the communication module may include at least one of a baseband module 1151, a GPS module 1152, a WiFi module 1152, a BDS module 1154, and the like.
  • the baseband module 1151, the GPS module 1152, the WiFi module 1153, and the like can implement positioning of the mobile terminal 110 and data exchange with various communication peers, such as a map server.
  • the mobile terminal 110 can track the motion trajectory of the mobile terminal 110 by the sensor 106.
  • the sensor 106 may include at least one of a gyro sensor, an acceleration sensor, a barometric pressure sensor, a magnetic force sensor, a gravity sensor, an image sensor, a distance sensor, and the like, wherein the gyro sensor is used to detect information on the moving direction of the mobile terminal 110;
  • the speed sensor is used to detect change information of the moving speed of the mobile terminal 110;
  • the air pressure sensor is used to detect the altitude information of the mobile terminal 110;
  • the magnetic sensor is used to assist in detecting the moving direction of the mobile terminal 110;
  • the gravity sensor can be used to assist in detecting the movement Information about the direction of movement of the terminal 110;
  • an image sensor (such as a camera) may be used to acquire image information of the environment surrounding the terminal;
  • the distance sensor may be a laser ranging device, an acoustic ranging device, an image ranging device, etc., and may be used to detect
  • the processor 111 is configured to read instructions and data stored in the memory, and perform the following operations:
  • the map server Sending the location information to the map server by the communication module 115, so that after the map server receives the location information, the map server is included by the mobile terminal 110 according to the first area included in the electronic map.
  • the location information of the transmitted collection point is drawn in the first area of the electronic map.
  • the implementation manner that the processor 111 acquires the location information of the collection point by using the positioning system may be one of the following embodiments:
  • the processor 111 After detecting that the strength of the satellite positioning signal is less than the first threshold and the strength of the mobile communication signal is less than the second threshold, the processor 111 acquires the location information of the collection point by inertial positioning or indoor positioning;
  • the processor 111 acquires the location information of the collection point by using a positioning method corresponding to the occasion category according to the occasion category of the current location;
  • the third embodiment detects a currently available positioning method, where the available positioning method includes a first positioning method, and receives a selection instruction for the first positioning method, and the processor 111 acquires a collection point by using the first positioning method. location information.
  • the processor 111 sends the location information to the map server by using the communication module, which specifically includes:
  • the location information is buffered by the memory 112, and the cached location information is transmitted to the map server by the communication module 115 when the data size of the cached location information is not less than a storage threshold.
  • the mobile terminal 110 further includes an input module 113, where the processor 111 is further configured to:
  • the tag information is sent to the map server by the communication module 115, so that the map server associates the tag information in the electronic map corresponding to the first location after receiving the tag information.
  • the processor 111 is further configured to:
  • the mobile terminal acquires the location information of the collection point by positioning, and sends the location information to the map server, so that after the location information is received by the map server, the first information is included in the electronic map.
  • the location information of the collection point sent by the mobile terminal in the area, and the road is drawn in the first area of the electronic map.
  • the embodiment of the present application obtains the location information of the collection point by using the mobile terminal as the collection device, and provides a low-cost and simple method for drawing the road in the electronic map, which can realize real-time updating of the electronic map.
  • FIG. 12 is a structural framework diagram of a map server according to an embodiment of the present application.
  • the map server 120 includes:
  • the receiving unit 121 is configured to receive location information of the collection point sent by the mobile terminal, where the location information is obtained by the mobile terminal by using the location at the collection point;
  • the processing unit 122 is configured to draw a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal included in the first area of the electronic map.
  • the processing unit 122 draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processing unit 122 draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processing unit 122 draws a road in the first area of the electronic map according to the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • the second probability value is smaller than the first The maximum probability value of the location point within the area
  • a road is generated with the first line and the second line as boundaries.
  • the processing unit 122 performs probability statistics on the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a probability statistical formula is applied to calculate a probability of occurrence of a collection point at each location point in the first region.
  • the location information further includes at least one of positioning identifier information, identification information of a mobile terminal, or a positioning accuracy factor, where the positioning identifier information is used to instruct the mobile terminal to locate the collection point.
  • Positioning The processing unit 122 determines a weighting factor of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • Determining a weighting factor of the collection point according to at least one of the positioning identification information, the identification information of the mobile terminal, or the positioning accuracy factor.
  • the location information further includes identifier information of the mobile terminal that locates the collection point, and the processing unit generates a first width in the first area of the electronic map by using the line as a symmetry axis.
  • the processing unit 122 is further configured to:
  • the processing unit 122 is configured to: before the road of the first width is generated by using the line as the axis of symmetry in the first area of the electronic map, the processing unit 122 is further configured to:
  • the processing unit 122 is configured to: before the road of the first width is generated by using the line as the axis of symmetry in the first area of the electronic map, the processing unit 122 is further configured to:
  • processing unit 122 is further configured to:
  • the update time is used to indicate the time of the most recent update of the road in the first area of the electronic map.
  • the receiving unit 121 is further configured to: receive the tag information sent by the mobile terminal for the first location;
  • the processing unit 122 is further configured to associate the tag information in the first location in the electronic map.
  • the receiving unit 121 is further configured to: receive an update request sent by the mobile terminal for the first area;
  • the map server 120 further includes a sending unit, configured to send, to the mobile terminal, map data corresponding to the first area, so that after the mobile terminal receives the map data, the mobile terminal is according to the map Data, updating a map in the first area on the electronic map in the mobile terminal.
  • a sending unit configured to send, to the mobile terminal, map data corresponding to the first area, so that after the mobile terminal receives the map data, the mobile terminal is according to the map Data, updating a map in the first area on the electronic map in the mobile terminal.
  • the collection point of the first region K of the position information of the data set consisting of R k; R k of the data set comprises at least one data set P i, P i of the data set to the map server 120
  • the i-th group of data received in the Kth area; the data group P i may include a data element P ij , and the data element P ij is position information of the jth collection point in the data group P i ; i, j is a positive integer; after receiving the location information of the collection point sent by the mobile terminal, the processing unit 122 is further configured to:
  • the receiving unit 121 After the receiving unit 121 receives the location information of the collection point sent by the mobile terminal, the data group composed of the location information of the collection point is added to the data set corresponding to the region where the collection point is located.
  • the map server 120 includes an activation area and an aging area; the activation area includes a data set corresponding to the second area; the aging area includes a data set corresponding to the third area; and the processing unit 122 Also used for:
  • the map server 120 moves the corresponding data set in the second area to the aging area, and deletes In the electronic map State the roads in the second area; or,
  • the map server 120 When the map server 120 receives the location point including the location point within the third area, moving the data set corresponding to the third area to the activation area; and in the electronic map A road drawn by the data set corresponding to the third area is added to the three areas.
  • the map server receives the location information of the collection point sent by the mobile terminal, where the location information is obtained by the mobile terminal by using the location at the collection point; and further, is sent by the mobile terminal according to the first area included in the electronic map.
  • the location information of the collection point is drawn in the first area of the electronic map.
  • the embodiment of the present application obtains the location information of the collection point by using the mobile terminal as the collection device, and provides a low-cost and simple method for drawing the road in the electronic map, which can realize real-time updating of the electronic map.
  • FIG. 13 is a structural diagram of another map server according to an embodiment of the present disclosure.
  • the map server 130 includes a processor 131 and a memory. 132 and a communication interface 133.
  • the processor 131 may be one or more central processing units (English: Central Processing Unit, CPU for short). In the case that the processor 131 is a CPU, the CPU may be a single core CPU or a multi-core CPU. .
  • the processor 131 connects various portions of the entire map server 130 using various interfaces and lines, performs various operations of the terminal by running or executing computer programs and/or modules stored in the memory 132, and recalling data stored in the memory 132.
  • the map server 130 is monitored as a whole by functioning and processing the data.
  • Memory 132 is used to store instructions and data.
  • Memory 132 includes, but is not limited to, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory), or portable read only memory (CD-ROM), Memory 132 is used for related instructions and data.
  • the memory 132 is also used to store location information of the collection points involved in the present application.
  • the communication interface 133 is configured to establish a communication channel through which the map service 130 is connected to a communication peer, such as a mobile terminal, other server, etc., and interacts with the communication peer through the communication channel.
  • a communication peer such as a mobile terminal, other server, etc.
  • the processor 131 is configured to read instructions and data stored in the memory, and perform the following operations:
  • the processor 131 draws a road in the first area of the electronic map according to the location information of the collection point that is sent by the mobile terminal in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processor 131 draws a road in the first area of the electronic map according to the location information of the collection point that is sent by the mobile terminal in the first area of the electronic map, and specifically includes:
  • a road of a first width is generated with the line as an axis of symmetry.
  • the processor 131 draws a road in the first area of the electronic map according to the location information of the collection point that is sent by the mobile terminal in the first area of the electronic map, and specifically includes:
  • the second probability value is smaller than the first The maximum probability value of the location point within the area
  • a road is generated with the first line and the second line as boundaries.
  • the processor 131 performs probability statistics on the location information of the collection point sent by the mobile terminal, which is included in the first area of the electronic map, and specifically includes:
  • a probability statistical formula is applied to calculate a probability of occurrence of a collection point at each location point in the first region.
  • the location information further includes at least one of positioning identifier information, identification information of a mobile terminal, or a positioning accuracy factor, where the positioning identifier information is used to instruct the mobile terminal to locate the collection point.
  • a positioning method the processor 131 determines a weighting factor of the collection point, specifically:
  • Determining a weighting factor of the collection point according to at least one of the positioning identification information, the identification information of the mobile terminal, or the positioning accuracy factor.
  • the location information further includes identifier information of the mobile terminal that locates the collection point; and the processor 131 generates the first axis in the first area of the electronic map by using the line as a symmetry axis.
  • the processor 131 is further configured to execute:
  • the processor 131 determines the first width according to the identifier information of the mobile terminal, and specifically includes:
  • the processor 131 is further configured to: before the path of the first width is generated by using the line as the axis of symmetry in the first area of the electronic map, the processor 131 is further configured to:
  • the processor 131 is further configured to:
  • the update time is used to indicate the time of the most recent update of the road in the first area of the electronic map.
  • the processor 131 is further configured to:
  • the first location in the electronic map is associated with the tag information.
  • the processor 131 is further configured to:
  • the collection point of the first region K of the position information of the data set consisting of R k; R k of the data set comprises at least one data set P i, P i of the data set to the map server 130
  • the i-th group of data received in the Kth area; the data group P i may include a data element P ij , and the data element P ij is position information of the jth collection point in the data group P i ; i, j is a positive integer; after the processor receives the location information of the collection point sent by the mobile terminal through the communication interface, the processor 131 is further configured to: perform data that is composed of the location information of the collection point. The group is added to the data set corresponding to the area where the collection point is located.
  • the map server 130 includes an activation area and an aging area; the activation area includes a data set corresponding to the second area; the aging area includes a data set corresponding to the third area; and the processor 131 Also used to execute:
  • the collection point received by the map server 130 is not in the second area in the first time period, the corresponding data set in the second area is moved to the aging area, and the electronic map is deleted. a road within the second area; or,
  • the map server 130 When the map server 130 receives the location point including the location point within the third area, moving the data set corresponding to the third area to the activation area; and in the electronic map A road drawn by the data set corresponding to the third area is added to the three areas.
  • the map server receives the location information of the collection point sent by the mobile terminal, where the location information is obtained by the mobile terminal by using the location at the collection point; and further, is sent by the mobile terminal according to the first area included in the electronic map.
  • the location information of the collection point is drawn in the first area of the electronic map.
  • the embodiment of the present application obtains the location information of the collection point by using the mobile terminal as the collection device, and provides a low-cost and simple method for drawing the road in the electronic map, which can realize real-time updating of the electronic map.

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Navigation (AREA)

Abstract

La présente invention concerne un procédé et un dispositif de dessin de routes sur une carte électronique. Le procédé comprend les étapes suivantes : un serveur de carte reçoit des informations de position d'un point d'acquisition, transmises par un terminal mobile, les informations de position étant acquises par le terminal mobile au point d'acquisition par positionnement ; et le serveur de carte dessine des routes dans une première zone de la carte électronique selon les informations de position du point d'acquisition contenues dans la première zone de la carte électronique et transmises par le terminal mobile. Les modes de réalisation de la présente invention concernent en outre des dispositifs pertinents. Dans les modes de réalisation de la présente invention, le terminal mobile est utilisé comme dispositif d'acquisition servant à acquérir les informations de position du point d'acquisition ; un procédé économique et simple de dessin de routes dans la carte électronique est fourni ; et une mise à jour en temps réel de la carte électronique peut être réalisée.
PCT/CN2017/094135 2017-03-01 2017-07-24 Procédé et dispositif de dessin de routes dans une carte électronique WO2018157541A1 (fr)

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CN114722127A (zh) * 2021-01-06 2022-07-08 华为技术有限公司 电子地图校正方法、导航信息设置方法、导航方法及装置
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