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A method and device for updating road grades

A road grade and road technology, which is applied to the traffic control system of road vehicles, traffic flow detection, instruments, etc., can solve the problems of inability to update road grades in time, high cost, and low road grade update efficiency.

Active Publication Date: 2017-06-27
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the huge number of roads in the traffic road network, the two methods in the prior art need to invest a lot of manpower and material costs to complete the work, resulting in low efficiency and high cost of road level update; and with the rapid urbanization Advance, road changes are very frequent (such as adding new roads, rebuilding roads, abolishing roads, etc.), and the road grade cannot be updated in time by manual means

Method used

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  • A method and device for updating road grades
  • A method and device for updating road grades
  • A method and device for updating road grades

Examples

Experimental program
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Effect test

Embodiment 1

[0099] see figure 1 , which is a flowchart of a method for updating road grades disclosed in Embodiment 1 of the present invention, the method includes the following steps:

[0100] Step 101: Obtain the positioning information of the positioning point reported by the floating vehicle within an update cycle;

[0101] The positioning information of the positioning points reported by the floating vehicle is stored in the database in advance, and the positioning information of the positioning points reported by the floating vehicle within an update cycle is read from the database. For example, if the road grade is updated every other month, the update cycle is one month, and the positioning information of the positioning point reported by the floating vehicle in the latest month is obtained.

[0102] The positioning information of the positioning point includes: the ID of the floating vehicle, the time when the floating vehicle passes the positioning point, and the latitude and l...

Embodiment 2

[0139] According to the category of roads, roads can be divided into urban roads and non-urban roads. Since the number of non-urban roads is relatively small compared with the number of urban roads, when determining the standard capacity range corresponding to the grade, corresponding processing should be made in combination with the actual road conditions to improve the accuracy of determining the standard capacity range sex.

[0140] see Figure 4 , which is a flowchart of a method for updating road grades disclosed in Embodiment 2 of the present invention, the method includes the following steps:

[0141] Step 401: Obtain the positioning information of the positioning point reported by the floating vehicle within an update cycle;

[0142] Step 402: Perform road matching for each anchor point according to the positioning information of the anchor point, and determine the road to which each anchor point belongs;

[0143] Step 403: Calculate the traffic capacity of the road...

Embodiment 3

[0157] Corresponding to the above method for updating road grades, an embodiment of the present invention also provides a device for updating road grades. see Figure 5 , which is a structural diagram of a device for updating road grades disclosed in Embodiment 3 of the present invention. The device includes: a location information acquisition unit 501, a road matching unit 502, a capacity calculation unit 503, a road aggregation unit 504, a standard capacity section determining unit 505 and road grade updating unit 506 . The internal structure and connection relationship of the device will be further introduced below in conjunction with the working principle of the device.

[0158] The positioning information acquisition unit 501 is used to obtain the positioning information of the positioning point reported by the floating vehicle within an update cycle;

[0159] A road matching unit 502, configured to perform road matching on each anchor point according to the positioning...

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Abstract

The embodiment of the invention discloses a road grade updating method and device. The method includes the following steps of obtaining locating information, reported by a probe vehicle in an updating cycle, of locating points; matching roads with the locating points according to the locating information of the locating points and determining the roads where the locating points belong; working out the traffic capacity of each road according to the locating information of the locating points belonging to the same corresponding road; aggregating the roads having the same road grade at present according to road grade information in road attribute information of the roads so as to obtain the roads contained in each road grade; determining a standard traffic capacity interval corresponding to each road level according to the traffic capacity of the roads contained in each road grade; determining a standard traffic capacity interval where each road belongs according to the traffic capacity of each road and updating the current road grade of the corresponding road according to the road grade corresponding to each determined standard traffic capacity interval. According to the road grade updating method and device, the road grades can be updated in time.

Description

technical field [0001] The invention relates to the technical field of electronic maps, in particular to a method and device for updating road grades. Background technique [0002] With the development of intelligent transportation, the accuracy of traffic data has been paid more and more attention, especially traffic road network data is the basis for traffic analysis research and planning and design. A reliable traffic road network data is the guarantee for subsequent intelligent traffic applications. However, the dynamic, regional and big data nature of traffic road network data make it difficult to ensure the accuracy and real-time performance of traffic road network. [0003] In the prior art, there are mainly two ways to update the road grade: one way is to determine the road grade of the road by measuring the number of lanes of the road and whether there is a separation zone on the road by the collector, and according to the determined road grade Grade updates the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0112G08G1/0133
Inventor 张祥飞胡润波曾利非吴跃进
Owner ALIBABA (CHINA) CO LTD