WO2011140859A1

WO2011140859A1 - Method and system for providing graphical real-time traffic information

Info

Publication number: WO2011140859A1
Application number: PCT/CN2011/071873
Authority: WO
Inventors: 吴红缨; 陈燕妮; 陈熹; 戴希; 赵伟; 朱丽娜
Original assignee: 北京世纪高通科技有限公司
Priority date: 2010-05-11
Filing date: 2011-03-16
Publication date: 2011-11-17
Also published as: CN101847319A

Abstract

A method and a system for providing graphical real-time traffic information are provided. The method includes the following steps: making a target base map corresponding to an actual road unit in a designated area range (101), wherein the target base map comprises a background and a road unit thereon; setting the mapping relationship between the road unit in the target base map and the corresponding actual road unit (102); obtaining the real-time traffic information corresponding to the acquired actual road unit (103); drawing the real-time traffic information on the corresponding road unit in the target base map according to the mapping relationship, and generating the target map (104).

Description

Method and system for providing graphical real-time traffic information The application is submitted to the Chinese Patent Office on May 1st, 2010, and the application number is 2 0 1 0 1 0 1 7 4 0 3 8. 2 . The priority of the Chinese Patent Application for "Method and System for Providing Graphical Real-Time Traffic Information" is hereby incorporated by reference in its entirety.

Technical field

The present invention relates to the field of intelligent transportation technologies, and in particular, to a method and system for providing graphical real-time traffic information.

Background technique

With the continuous improvement of intelligent transportation technology, more and more users are using the navigation device to obtain real-time traffic information. For example, the user can use a car navigation device to receive traffic information on a specific road by receiving traffic information published by the real-time traffic information service system. At present, the real-time dynamic traffic information received by the car navigation system is mostly expressed in the form of directly superimposed on the map. For example, the real-time road condition information is directly superimposed on the map road by lines of red, yellow and green colors. Event information is usually displayed on the map with icons.

In the process of realizing the above-mentioned real-time traffic information display, the inventor found that since the road itself is also displayed by color and lines, after the real-time traffic information is superimposed on the road of the map by the prior art, the geography displayed by the map itself The information and color are more, so the navigation screen displayed by the terminal is more complicated, and the road is more difficult to distinguish, especially in the more complicated roads. For example, at some intersections, when the user wants to select the target road through the navigator, the road is caused. Hard to identify.

Summary of the invention

Embodiments of the present invention provide a method and system for providing graphical real-time traffic information that improves the clarity of a road when displaying real-time traffic information on the navigation terminal.

In order to achieve the above object, an embodiment of the present invention uses the following technical solution: A method for providing graphical real-time traffic information, including: Producing a target base map corresponding to actual road units within a specified area, the target base map including the background and road units thereon;

Setting a mapping relationship between the road unit in the target base map and its corresponding actual road unit;

Acquiring the real-time traffic information corresponding to the actual road unit that is collected, and drawing the real-time traffic information on the corresponding road unit in the target base map according to the mapping relationship, and generating a target graphic.

A system for providing graphical real-time traffic information, including:

a production unit, configured to create a target base map corresponding to an actual road unit within a specified area, the target base map including a background and a road unit thereon;

a setting unit, configured to set a mapping relationship between the road unit in the target base map and its corresponding actual road unit;

An obtaining unit, configured to obtain real-time traffic information corresponding to the actual road unit that is collected;

a drawing unit, configured to draw the real-time traffic information on a corresponding road unit in the target base map according to the mapping relationship;

A graphics generation unit for generating a target graphic.

In the embodiment of the present invention described by the above technical solution, first, a target base map corresponding to an actual road unit within a specified area including a background and a road unit thereon is created. The target basemap is a separate graph that contains only some information related to the road, such as the background of the target basemap indicating the geographic environment in which the road is located, such as land type, or water system. Set a mapping relationship between the road unit in the target base map and its corresponding actual road unit. This mapping relationship indicates the correspondence between the road unit and the actual road unit in the target base map.

Then, real-time traffic information corresponding to the actual road unit that is collected is obtained. The real-time traffic information is collected and processed by a dedicated traffic information service system. The real-time traffic information is drawn on a corresponding road unit in the target base map according to the mapping relationship, and a target graphic is generated.

Since the final target figure in the embodiment of the present invention includes real-time communication Information, and the target graphic is independent of the map, and only information related to the road, such as the background of the land type, the road unit and its corresponding real-time traffic information, is displayed on the target graphic. Compared with the prior art, the real-time traffic information is directly superimposed on the map. The target graphic form is simple, highlighting the road and real-time traffic information, improving the clarity of the road, and facilitating the user to quickly and accurately locate the travel route. Target road.

In addition, since the target figure in the embodiment of the present invention is drawn based on the actual road, it is independent of the map. When the actual road is updated, even if the corresponding road has not been updated on the map, the target graphic can be updated in real time, improving the accuracy and real-time performance of the real-time traffic information.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flow chart of a method for providing graphical real-time traffic information in Embodiment 1 of the present invention;

2 is a structural diagram of a system for providing graphical real-time traffic information in Embodiment 1 of the present invention;

3 is a flow chart of a method for providing graphical real-time traffic information in Embodiment 2 of the present invention;

4 is a target graph showing a selection of partial expressway entrance ramps in a city according to Embodiment 2 of the present invention;

Figure 5 is a block diagram showing a system for providing graphical real-time traffic information in Embodiment 3 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on an embodiment of the present invention, All other embodiments obtained by those skilled in the art without creative efforts are within the scope of the present invention.

Example 1

Embodiments of the present invention provide a method for providing graphical real-time traffic information, as shown in the figure.

As shown in Figure 1, the method includes the following steps:

1 0 1. Create a target base map corresponding to the actual road unit within the specified area, the target base map including the background and the road unit thereon.

The target base map is independent of the map. When the actual road unit is updated, the target base map can be updated immediately. It includes only some information related to the road, such as the background of the underlying map indicating the geographical environment in which the road is located, such as land type, or water system. In the specific implementation process, in order to highlight the road, the contrast and the larger color can be used to represent the background and the road unit respectively. For example, the land is indicated in black, and the road unit on it can be represented by a white edge.

102. Set a mapping relationship between the road unit and the corresponding actual road unit in the target base map. This mapping relationship indicates the correspondence between the road unit and the actual road unit in the target base map. For example, the road unit identified as A in the target base map corresponds to the actual road unit identified as 0 0 1 .

1104. The real-time traffic information is drawn on a corresponding road unit in the target base map according to the mapping relationship, and a target graphic is generated.

Depending on the real-time traffic information, the color of the road unit in the target basemap is also different. For example, when the real-time road condition obtained is unblocked, it can be drawn in green; when the real-time road condition is slow, it can be drawn in yellow. In the specific implementation process, the specific color is used for drawing without specific setting. Preferably, the color contrast between the color used in the real-time traffic information and the background is better, which is convenient for the user to clearly identify. Road and traffic information.

In the embodiment of the present invention, real-time traffic information is displayed in a graphical manner. Since only the road-related information, such as the land type background, the road unit and its corresponding real-time traffic information, is displayed on the final generated target graph. And when it is displayed, it is The map is independent. Compared with the prior art, the real-time traffic information is directly superimposed on the map, and the target graphic has a simple form, highlighting the road and real-time traffic information, improving the clarity of the road, and facilitating the user to quickly and accurately select the travel route. Target the target road.

Correspondingly, an embodiment of the present invention further provides a system for providing graphical real-time traffic information. As shown in FIG. 2, the system includes: a production unit 2 1 , a setting unit 22 , an obtaining unit 2 3 , a drawing unit 24 , and a graphic generation Unit 2 5.

The production unit 21 is used to create a target base map corresponding to the actual road unit within the specified area, and the target base map includes the background and the road unit thereon. The target basemap is a graph that is independent of the map, highlighting the road. The setting unit 22 is configured to set a mapping relationship between the road unit in the target base map and its corresponding actual road unit.

The obtaining unit 2 3 is configured to obtain real-time traffic information corresponding to the actual road unit that is collected. The drawing unit 24 is configured to draw the real-time traffic information on the corresponding road unit in the target base map according to the mapping relationship. The graphic generation unit 25 is for generating a target graphic.

The target image finally generated by the real-time traffic information processing system provided by the embodiment of the present invention only displays road-related information, such as the background of the land type, the road unit and its corresponding real-time traffic information. And when displayed, it is independent of the map. Compared with the existing technology, the real-time traffic information is directly superimposed on the map, and the target graphic is simple in form, highlighting the road and real-time traffic information, and improving the clarity of the road.

Example 2:

An embodiment of the present invention provides a method for providing graphical real-time traffic information. As shown in FIG. 3, the method includes the following steps:

3 01. Create a target base map corresponding to the actual road unit within the specified area, the target base map including the background and the road unit thereon.

The target basemap is independent of the map, and the target basemap can be updated immediately when the actual road unit is updated. It includes some information related to the representation of the road, such as the background of the target basemap indicating the geographical environment in which the road is located, such as the land type, or the water system. With During the implementation process, as shown in Table 1 below, the content of the target basemap can also represent annotations and signs.

Table 1

Adding a corresponding annotation to the target basemap makes it easy for users who are unfamiliar with current city traffic to quickly locate the road unit they are looking for. For those who are very familiar with the current urban traffic, they do not need to provide corresponding annotations, highlighting the lines of the road, because they often travel on relatively fixed routes, such as users who often drive to and from work, they see the direction of the road You can know which road it is, so you can quickly locate the road you want to find. In addition, in order to highlight the road, the contrast and the larger color can be used to represent the background and the road unit. For example, the above table

1 The middle 釆 indicates the land in black, and the road unit on it is indicated by a white edge.

3 02. Set a mapping relationship between the road unit and the corresponding actual road unit in the target base map. This mapping relationship indicates the correspondence between the road unit and the actual road unit in the target base map. For example, the road unit identified as A in the target base map corresponds to the actual road unit identified as 001.

3 03. Obtain real-time traffic information corresponding to the actual road unit collected by the collection. The The real-time traffic information is distributed by the corresponding real-time data publishing unit, and each real-time data publishing unit corresponds to an actual road unit.

3: Determine, according to the mapping relationship, the road unit corresponding to the actual road unit in the target base map. If the real-time traffic information is generated by the actual road unit identified as 001, then according to the mapping relationship, it can be known that the identity of the corresponding road unit on the target base map is A.

After determining the road unit on the target base map, the determined road unit is drawn as a specified color corresponding to the road condition message in the real-time traffic information, and the event in the real-time traffic information is drawn in the determined road unit. The icon corresponding to the message, and the target graphic is generated.

When there are multiple road units on the target base map, repeat steps 303 and 3 04 until the real-time traffic information of all road units on the target base map is drawn.

Depending on the real-time traffic information, the color of the road unit in the target basemap is also different. During the implementation, you can draw accordingly as shown in Table 2 below.

Table 2

For example, when the real-time road condition obtained is unblocked, it can be drawn in green; when the real-time road condition is slow, it can be drawn in yellow. In the specific implementation process, the specific color is used for drawing without specific setting, and preferably, real-time traffic is drawn. The contrast between the color used in the information and the color used in the background is better, which makes it easier for the user to clearly identify the road and traffic information.

In addition, each target graphic represents road conditions and event information of a specific road, and the time stamp of the current graphic can also be displayed in the upper left corner of the target graphic.

According to the different content of the target graphic, it can be divided into two types: global map and local map. Among them, the global map is a graph that can be opened at any time when the vehicle is not driving. It includes three kinds of contents: intercity highway, urban highway, and key roads in the city. The following is a brief introduction to these three global maps:

The first type: Intercity highway. It mainly shows the road conditions and event information of the highways around the city. This type of target graphic is suitable for drivers who need to enter and exit the city. The target map is used to understand the road traffic conditions of the highways entering and leaving the city to determine whether it is necessary to take the highway.

Second: Highways within the city. It mainly displays road conditions and event information of highways and expressways within the city. For those who travel long distances in the city, they can graphically understand the road conditions of the expressways and expressways in the city to determine which highway or expressway to choose.

Third: Key road points within the city. It mainly displays the road conditions and event information of key road points in the city and its surrounding areas. It is suitable for drivers who need to pass the key roads of the city to understand the road traffic conditions of each key road point by graph to determine which key road point to choose. Taking Shanghai as an example, Shanghai was divided into Pudong and Puxi by the Huangpu River, and the cross-river bridge and tunnel became an important key road in the city. Drivers can graphically understand the traffic conditions of each bridge and tunnel in the river and choose the most suitable bridge and tunnel crossing the river.

The local map is a graphic pop-up when the vehicle passes the preset position. It includes four types of contents: the selection of the expressway entrance ramp in the city, the selection of the expressway exit in the city, the selection of the expressway in the city, and the travel of the road in the hotspot of the city. time. The four types of local maps are described below.

The first type: the choice of the expressway entrance ramp in the city. It provides information on the road conditions and events of two to three entrance ramps and their expressways and general roads on the expressway in the city. Suitable for drivers who need to choose the ramp to enter the expressway, through the graphics to understand 2 - 3 consecutive The access ramp and the traffic conditions between the roads to select the most suitable ramp to enter the expressway. As shown in Figure 4, a schematic diagram of the selection of some expressway routes in Shanghai. The reference numeral 07 is the background of the schematic diagram, and the background of the schematic diagram can be filled with black in the actual application process. The shaded part of the symbol 01 indicates that the road condition of the road unit is unblocked. In actual display, it can be drawn in green; the shaded part of the label 02 indicates that the road condition of the road unit is slow, and in actual display, it can be drawn in yellow; The shaded part of the label 03 indicates that the road condition of the road unit is congested. In actual display, it can be drawn in red; the shaded part of the label 04 indicates that the current road unit does not have corresponding road condition information, and in actual display, it can be grayed out. draw. The icon of the symbol 06 indicates that the current event information of the road unit at the entrance of Ningxia Road is prohibiting the right turn. In addition, the triangle of the reference 05 indicates the position of the current car, and the triangle can be represented by blue. A time stamp is displayed in the upper left corner of the target graphic.

The second type: the choice of expressway exit ramps in the city. It shows the road conditions and events of 2 - 3 exit ramps and their expressways on the fast road in the city. It is suitable for drivers who need to choose the expressway to leave the expressway, and graphically understand the traffic conditions of two consecutive 3 exit ramps and the expressway between them to select the most suitable ramp to leave the expressway.

Third: Fast road selection within the city. Express road conditions and event information for fast roads within the city. It is suitable for drivers who have the need for route selection on the expressway. Through the graph, understand the traffic conditions of the expressway in the city, and choose the appropriate route to avoid the congested road section.

Fourth: The travel time of ground roads in hotspots in cities. It shows the road conditions, event information and travel time of the roads in all directions in the city. It is suitable for drivers who need to leave hot spots, and graphically understand the travel time and traffic conditions from the hotspot to the next landmark.

3 05. Publish the target graphic.

For example, it can be distributed through a wireless communication network such as GP RS, CDMA 1 X, 3 G, and a terminal capable of downloading data through the wireless communication network can receive the target graphic issued by the embodiment of the present invention.

In the embodiment of the present invention, the real-time traffic information is displayed in a graphical manner, and the shape of the target graphic is compared with the prior art directly superimposing the real-time traffic information on the map. The style is simple, highlighting the road and real-time traffic information, and improving the clarity of the road. In addition, since the target graphic provided by the embodiment of the present invention classifies the traffic information of different road types, it can facilitate the needs of different users. For example, through the global map, drivers can quickly understand the traffic conditions of highways, expressways and key roads inside and outside the city at any time and anywhere, and adjust the driving route or travel plan in time. Through the local map, drivers can keep abreast of road traffic conditions at designated locations and make correct route decisions.

There are also some variable information flags displayed in the prior art that are displayed on the actual roadside to display real-time dynamic communication. These facilities use display devices such as light-emitting diodes to represent real-time road conditions in red, yellow and green colors, supplemented by textual information describing road conditions and regulatory construction. However, since the variable information sign on the actual road is physical construction, the construction cost is high. Moreover, the positions of these signs are usually fixed and are easily blocked by the front car or leaves. Real-time dynamic traffic cannot be displayed when there is a problem with the power supply. Compared with the physical construction on the actual road mentioned above, the embodiment of the invention can reduce human and material resources, low carbon and environmental protection, and the display effect is not limited by the external environment such as front vehicle blockage, heavy rain, cable and the like.

Example 3:

An embodiment of the present invention provides a system for providing graphical real-time traffic information. As shown in FIG. 5, the system includes: a production unit 4 1 , a setting unit 42 , an obtaining unit 4 3 , a drawing unit 44 , a graphic generating unit 45 , and Release unit 46.

The production unit 4 1 is configured to create a target base map corresponding to the actual road unit within the specified area, and the target base map includes the background of the land type and the road unit thereon. The target basemap is a graph that is independent of the map and mainly shows the road. The background of the target basemap indicates the geographical environment in which the road is located, such as land type, or water system. In the production, you can use the contrast color to represent the background and road unit. The setting unit 42 is configured to set a mapping relationship between the road unit in the target base map and its corresponding actual road unit.

The obtaining unit 4 3 is configured to obtain real-time traffic information corresponding to the actual road unit that is collected. The drawing unit 44 is configured to use the real-time traffic information according to the mapping relationship Draw on the corresponding road unit in the target base map. Further, the drawing unit 44 may include: a determining module 44 A and a drawing module 44 B.

The determining module 44 A is configured to determine, according to the mapping relationship, a corresponding road unit of the actual road unit in the target base map. The drawing module 44 B is configured to draw the determined road unit as a designated color corresponding to the road condition message in the real-time traffic information. For example, when the real-time road condition obtained is unblocked, it can be drawn in green; when the real-time road condition is slow, it can be drawn in yellow. Preferably, the contrast between the color used in drawing the real-time traffic information and the color used by the background is better, which makes it easier for the user to clearly identify the road and traffic information. The drawing module is further configured to draw an icon corresponding to the event information in the real-time traffic information in the determined road unit. The rendering module may also draw a timestamp in the upper left corner of the target basemap.

Then, the graphic generating unit 45 is used to generate a target graphic. According to the different content of the target graphic, it can be divided into two types: global map and local map. Among them, the global map is a graph that can be opened at any time when the vehicle is not driving. It includes three kinds of contents: inter-city high-speed road, urban highway, and key roads in the city. The local map is a graphic pop-up when the vehicle passes the preset position. It includes four types of contents: the selection of the expressway entrance ramp in the city, the selection of the expressway exit in the city, the selection of the expressway in the city, and the travel of the road in the hotspot of the city. time.

Finally, the publishing unit 46 publishes the target graphics over a wireless communication network.

The target image finally generated by the real-time traffic information processing system provided by the embodiment of the present invention only displays road-related information, such as the background of the land type, the road unit and its corresponding real-time traffic information. And when displayed, it is independent of the map. Compared with the prior art, the real-time traffic information is directly superimposed on the map, and the target graphic has a simple form, highlighting the road and real-time traffic information, and improving the clarity of the road.

The embodiments of the present invention are mainly applied to the field of intelligent transportation, and the real-time traffic information is distributed in a graphical manner, thereby improving the clarity of the road in the navigation screen.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. . Based on this It is understood that the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a computer floppy disk, a hard disk or An optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

Claim

What is claimed is: 1. A method for providing graphical real-time traffic information, comprising: creating a target base map corresponding to an actual road unit within a specified area, the target base map including a background and a road unit thereon;

And setting a mapping relationship between the road unit and the corresponding actual road unit in the target base map; and drawing the real-time traffic information on the corresponding road unit in the target base map according to the mapping relationship, and generating a target graphic .

2. A method of providing graphical real-time traffic information according to claim 1 wherein:

The background of the target base map includes land and water systems;

The target base map further includes an annotation and a logo, wherein the annotation includes: a road name, a water system name, a direction name, a bridge name, or a tunnel name, and the flag is a landmark indicating the designated area i or .

3. A method of providing graphical real-time traffic information according to claim 1 wherein:

The target graph includes: a global map and a local map;

The content represented by the global map includes: an intercity highway, an urban highway, and a key road point in the city;

The content represented by the local area map includes: the selection of the expressway entrance ramp in the city, the selection of the expressway exit in the city, the selection of the expressway in the city, and the travel time of the ground road in the hotspot area of the city.

The method for providing the graphical real-time traffic information according to claim 1, wherein the mapping the real-time traffic information to the corresponding road unit in the target base map according to the mapping relationship comprises:

Determining, according to the mapping relationship, the road unit corresponding to the actual road unit in the target base map;

Drawing the determined road unit as a road condition message in the real-time traffic information Corresponding specified color;

An icon corresponding to the event information in the real-time traffic information is drawn on the determined road unit.

The method for providing graphical real-time traffic information according to claim 4, wherein the real-time traffic information further includes a time stamp of the real-time traffic information; and the real-time traffic according to the mapping relationship The traffic information is drawn on the corresponding road unit in the target base map, further comprising: drawing the time stamp on the target base map.

The method for providing graphical real-time traffic information according to any one of claims 1 to 4, further comprising: publishing the target graphic.

7. A system for providing graphical real-time traffic information, comprising: a production unit, configured to generate a target base map corresponding to an actual road unit within a specified area, the target base map including a background and Road unit on;

A graphics generation unit for generating a target graphic.

8. The system for providing graphical real-time traffic information according to claim 7, wherein the drawing unit comprises:

a determining module, configured to determine, according to the mapping relationship, a corresponding road unit of the actual road unit in the target base map;

a drawing module, configured to draw the determined road unit as a specified color corresponding to the road condition message in the real-time traffic information; the drawing module is further configured to draw the real-time traffic information in the determined road unit The icon corresponding to the event information.

The system for providing graphical real-time traffic information according to claim 8, wherein the drawing module of the drawing unit is further configured to draw a timestamp on the target basemap, where the timestamp is obtained The time of the real-time traffic information.

The system for providing graphical real-time traffic information according to claim 7, further comprising: a publishing unit, configured to issue the target graphic.