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A method for identifying the driving direction of urban roads based on GPS information of floating cars

A technology of driving direction and information identification, which is applied in traffic control systems, instruments, and traffic flow detection of road vehicles, and can solve problems such as long engineering period, large amount of one-way urban roads, unfavorable electronic map making and updating, etc. , to achieve the effect of simple and direct calculation, saving manpower, material resources and time

Active Publication Date: 2018-09-25
SHENZHEN HAILITE SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, collecting and judging the unidirectionality of urban roads requires a huge amount of engineering, which consumes a lot of manpower and material resources. At the same time, the project cycle is relatively long, which is not conducive to the production and update of electronic maps.

Method used

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  • A method for identifying the driving direction of urban roads based on GPS information of floating cars
  • A method for identifying the driving direction of urban roads based on GPS information of floating cars
  • A method for identifying the driving direction of urban roads based on GPS information of floating cars

Examples

Experimental program
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Effect test

Embodiment 1

[0059] Please refer to figure 1 , The first embodiment of the present invention is:

[0060] A method for identifying the driving direction of a city road based on GPS information of a floating car, the method is:

[0061] Acquiring GPS positioning point data of the floating vehicle within a preset time, where the GPS positioning point data includes positioning point location information and positioning point driving direction;

[0062] Match the GPS location data of the floating car to the road section;

[0063] According to the location information of the positioning point, starting from the starting point of the road section to find the position information of the first and second turning points adjacent to the positioning point;

[0064] Calculate the angle between the vector composed of the first turning point and the second turning point and the driving direction of the positioning point, and judge the driving direction of the road section according to the value of the included an...

Embodiment 2

[0066] Please refer to figure 2 , The second embodiment of the present invention is:

[0067] A method for identifying the driving direction of a city road based on GPS information of a floating car, the method further comprising:

[0068] (1) Further judge the driving direction of the road section on the basis of Example 1:

[0069] S1 obtains the GPS positioning point data of all floating vehicles matching on the same road segment within a preset time; presets the number of forward driving points on the road segment as A=0, and the number of reverse driving points as B=0;

[0070] S2 uses the first GPS location data as the current GPS location data;

[0071] S3, according to the position information of the current positioning point, starting from the starting point of the road section to find the position information of the current first turning point and the current second turning point adjacent to the current positioning point;

[0072] S4 calculate the current angle between the cur...

Embodiment 3

[0094] Please refer to image 3 , The third embodiment of the present invention is:

[0095] Assuming that the preset time is one month, taking the GPS positioning point data of the floating car in Shenzhen in May 2016 as an example, the method of the present invention for identifying the driving direction of urban roads based on the floating car GPS information is:

[0096] Obtain the GPS positioning point data of all floating vehicles in Shenzhen in May 2016, where the GPS positioning point data includes positioning point location information and positioning point driving direction;

[0097] The data center pre-stores the link ID number of each road section on the electronic map, and the location information of the starting point, turning point, and end point on the road section corresponding to the road section ID number, and composes the location information of all turning points on the road section Turn point set S;

[0098] Match the GPS location data of all floating vehicles to...

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Abstract

The invention provides a method for recognizing urban road driving direction on the basis of floating car GPS information. GPS positioning point data of a floating car in a preset period of time is obtained, wherein the GPS positioning point data includes positioning point position information and the positioning point driving direction; the GPS positioning point data of the floating car is matched with a road section; according to the positioning point position information, position information of a first break point and a second break point adjacent to a positioning point starts to be found from the starting point of the road section; the included angle between a vector composed of the first break point and the second break point and the positioning point driving direction is calculated, and the road section driving direction is judged according to the included angle; if the included angle is larger than 90 degrees, the road section has the directivity of reverse driving, and otherwise, the road section has the directivity of forward driving. The driving direction of the floating car is calculated according to single GPS positioning point data and the break points of the road section, the driving direction of the road section is further judged, and calculation is quick and convenient.

Description

Technical field [0001] The invention relates to the technical field of intelligent electronic maps, and in particular to a method for identifying the driving direction of urban roads based on GPS information of floating vehicles. Background technique [0002] At present, the update of smart navigation electronic maps is generally divided into field collection and internal processing. The field collection is the road network field information collection. In addition to using GPS to locate the sampling vehicle to record the trajectory, it also collects basic road information, such as The unidirectionality of the road, that is, whether it is a one-way road, is collected by field collectors driving vehicles on each road. Therefore, collecting and judging the one-way engineering of urban roads on the spot is huge and consumes a lot of manpower and material resources. At the same time, the engineering cycle is relatively long, which is not conducive to the production and update of elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/056
CPCG08G1/0112G08G1/056
Inventor 王进谢海珠
Owner SHENZHEN HAILITE SCI & TECH DEV
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