KR101757181B1 - System and method for providing lane-based traffic information - Google Patents

System and method for providing lane-based traffic information Download PDF

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Publication number
KR101757181B1
KR101757181B1 KR1020160023309A KR20160023309A KR101757181B1 KR 101757181 B1 KR101757181 B1 KR 101757181B1 KR 1020160023309 A KR1020160023309 A KR 1020160023309A KR 20160023309 A KR20160023309 A KR 20160023309A KR 101757181 B1 KR101757181 B1 KR 101757181B1
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South Korea
Prior art keywords
lane
road
travel time
time
traffic information
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KR1020160023309A
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Korean (ko)
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양인철
전우훈
기성환
윤정은
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한국건설기술연구원
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    • G06Q50/30—
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/02—Registering or indicating driving, working, idle, or waiting time only
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
    • G08G1/0112—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from the vehicle, e.g. floating car data [FCD]
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
    • G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
    • G08G1/0141—Measuring and analyzing of parameters relative to traffic conditions for specific applications for traffic information dissemination

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
  • Engineering & Computer Science (AREA)
  • Operations Research (AREA)
  • Tourism & Hospitality (AREA)
  • Navigation (AREA)
  • Traffic Control Systems (AREA)

Abstract

The present invention relates to a system and method for providing traffic information on a lane basis, and more particularly, to a system and method for providing traffic information on a lane basis that can provide traffic information for each lane on at least two lanes, It is about the method.
According to another aspect of the present invention, there is provided a vehicle navigation system including a collecting unit for collecting a trajectory of a probe vehicle traveling on a road in real time, a travel time calculating unit for calculating a travel time of the probe vehicle, A calculation unit, and a lane travel time calculating unit for calculating a lane travel time corresponding to the road travel time on the basis of the road type or the pre-stored travel time distribution, and at least one of road travel time and lane travel time So that it is possible to more precisely guide the lane travel time and the traffic situation.

Description

[0001] The present invention relates to a traffic information providing system and a method thereof,

The present invention relates to a system and method for providing traffic information on a lane basis, and more particularly, to a system and method for providing traffic information on a lane basis that can provide traffic information for each lane on at least two lanes, It is about the method.

Generally, traffic information is information including traffic time, traffic flow, traffic conditions, and the like of a road section, and the driver of the vehicle can receive the traffic information to identify a congested road section and a smooth road section.

In addition, the conventional traffic information providing system provides traffic information through a mobile terminal such as a navigation device or a smart phone installed in the vehicle, thereby allowing the driver of the vehicle to travel to the destination in the shortest time, The road efficiency can be improved.

Meanwhile, in the conventional traffic information providing system, even if there are at least two lanes on the road section, only the average travel time of the entire road section is calculated to provide the traffic information, so that even if the drivers are provided with traffic information, And the accuracy of the traffic information is greatly degraded when the degree of congestion is large in each lane.

For example, in the case of a conventional traffic information providing system, a straight-ahead lane is provided for a road section in which a straight-ahead lane that the vehicle travels straight ahead, and a lane departure lane for which the vehicle enters, advances, If the directional lane is congested, the traffic information is provided as a congested whole road according to the congestion of the direction change lane. On the other hand, if the lane change lane is congested, traffic information is provided smoothly throughout the road section.

Particularly, compared with the straight-ahead lane, the directional lane can be easily congested and the travel time may be delayed. However, since the conventional traffic information providing system does not provide traffic information classified by lane, There is a situation in which the driver rushes around on the basis of the traffic information despite the congested situation of the lane or the straight lane.

Open Patent Publication No. 10-2015-0042501 (published on April 21, 2015)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a traffic information system for a vehicle, which can provide traffic information on traffic time, Providing system and method therefor.

In addition, the present invention provides a traffic information providing system for a lane-by-lane vehicle in which a driver can more easily confirm traffic information of a direction changing lane that is relatively easily congested when a straight lane and a direction changing lane exist in the same direction, The purpose of the method is to provide.

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a vehicle navigation system comprising: a collecting unit for collecting, in real time, a traveling locus of a probe vehicle traveling on a road; A travel time calculation unit for calculating a road travel time according to a time when the probe vehicle entered and a time when the probe vehicle entered by the road section using the collected travel trajectory; A lane travel time calculating unit for calculating a lane travel time corresponding to the calculated road travel time on the basis of a road type or a previously stored travel time distribution; And a service unit for providing traffic information in which at least one of a road travel time and a lane travel time is mapped to an electronic map on which a road is displayed.

In a preferred embodiment, the collecting unit further collects a star point speed from the vehicle detection system installed on the road, and the travel time calculating unit calculates the travel speed of the vehicle based on the collected lane- Calculate more travel time by car.

In a preferred embodiment, the travel time calculation unit calculates the travel time based on the collected travel trajectory based on the collected travel trajectory, the direction change lane in which the vehicle enters, advances, turns left, and right turns with respect to the road segment in the same direction, And calculates the lane-by-lane traffic time for each lane.

In a preferred embodiment, the system further includes a traffic time distribution generator for matching the lane-by-lane traffic time calculated from the traffic time calculator with the corresponding road lane to generate a traffic time distribution for each lane and lane.

In a preferred embodiment, the lane travel time calculating unit calculates a lane travel time by applying a travel time distribution corresponding to the road section when the road travel time for a specific road section is input.

In a preferred embodiment, the travel time distribution generator classifies each road section according to a predetermined road type, and the lane travel time calculating section selects the most similar road type in the case of a road section in which there is no travel time distribution And the travel time is calculated by applying the travel time distribution of the corresponding road type.

According to another aspect of the present invention, there is provided a traffic information providing method performed in a traffic information providing system, the method comprising the steps of: (1) collecting a trajectory of a probe vehicle traveling on a road in real time; (2) the traffic information providing system calculates the road travel time according to the time when the probe vehicle entered and the time when the probe vehicle entered the road section by using the collected travel trajectory; (3) calculating the lane travel time corresponding to the calculated road travel time based on the road type or the previously stored travel time distribution; And (4) providing the traffic information providing system with traffic information mapping at least one of a road travel time and a lane travel time to an electronic map displayed with a road.

In a preferred embodiment, before the step (1), (A) the traffic information providing system is provided with a traffic lane detecting means for detecting a traffic lane from a vehicle locus of a probe vehicle traveling on a road and a vehicle detection system Collecting the point velocity; And (B) calculating, by the traffic information providing system, the lane-by-lane travel time according to the collected lane-specific speed and the collected travel trajectory.

In a preferred embodiment, in the step (B), the traffic information providing system may include a direction switching lane for entering, advancing, left, and right turning on a road section in the same direction based on the collected travel trajectory The straight lane on which the vehicle travels straight ahead is determined, and the lane-by-lane travel time is calculated for each lane.

In a preferred embodiment, the traffic information providing system includes (B) a step between (B) and (1), and (C) the traffic information providing system may accumulate the lane- And generating a travel time distribution.

In a preferred embodiment, in the step (3), when the road traffic time for a specific road section is input, the traffic information providing system calculates a lane travel time by applying a traffic time distribution corresponding to the road section .

In a preferred embodiment, in the step (C), the traffic information providing system classifies each road section according to a preset road type, and in the step (3), the traffic information providing system classifies a traffic time In the case of a road section without distribution, the most similar road type is selected and the lane travel time is calculated by applying the travel time distribution of the corresponding road type.

According to the above-mentioned problem solving means, according to the present invention, there is provided a vehicle navigation system comprising: a collecting unit for collecting, in real time, a running locus of a probe vehicle traveling on a road; A lane travel time calculating unit for calculating a lane travel time corresponding to a road travel time on the basis of a road type or a pre-stored travel time distribution, and an electronic map showing roads, And the traffic time, and thus it is possible to more accurately guide the lane-by-lane traffic time and the traffic situation.

Accordingly, the present invention can provide a path of a lane-by-lane unit that allows the driver of the vehicle to travel in a shortest time when the driver intends to travel to a specific destination, and can display a congested lane, The vehicle concentration can be prevented.

1 is a view for explaining a traffic information providing system according to an embodiment of the present invention;
2 is a view for explaining a detailed configuration of a traffic information providing system;
3 is a view for explaining traffic information classified by lane.
4 is a view for explaining a traffic information providing method according to an embodiment of the present invention;

It should be understood that the specific details of the invention are set forth in the following description to provide a more thorough understanding of the present invention and that the present invention may be readily practiced without these specific details, It will be clear to those who have knowledge.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

FIG. 1 is a view for explaining a traffic information providing system according to an embodiment of the present invention. FIG. 2 is a view for explaining a detailed configuration of a traffic information providing system. Fig.

1 to 3, a traffic information providing system 100 according to an embodiment of the present invention includes a collecting unit 110, a travel time calculating unit 120, a travel time distribution generating unit 130, A time calculating unit 140 and a service unit 150. [

The collecting unit 110 is for collecting the driving trajectory of the probe vehicle 10 and includes a probe vehicle 10 that travels on the road using a wired or wireless communication network including a mobile communication network and the Internet network Information about the driving trajectory can be collected for each road section.

Here, the travel trajectory collected by the collecting unit 110 is information on the vehicle position per unit time, and includes information on the time including the entry into the road section, the time advancing from the corresponding section of the road, Lt; / RTI >

The trajectory of the probe vehicle 10 collected by the collecting unit 110 in real time can be used to calculate the road travel time and the lane travel time in the travel time calculating unit 120 to be described later. In addition, the above-mentioned lane travel time is accumulated and stored by the travel time distribution generating unit 130 to be described later.

Meanwhile, the collecting unit 110 may further collect the star point speed from the vehicle detection system installed on the road. At this time, the lane-specific point speed means the speed of the vehicle passing through the point where the vehicle detection system is installed.

The travel time calculation unit 120 calculates the travel time for each road segment using the travel trajectory collected from the collection unit 110 in real time. For example, the travel time calculation unit 120 may calculate the difference between the time when the probe vehicle 10 entered the road section and the time when the probe vehicle 10 entered the road section as the road travel time.

The traffic information for the traffic time and the traffic condition for each road section may be provided based on the road travel time calculated from the travel time calculating section 120. [

On the other hand, the travel time calculation unit 120 further calculates the lane-by-lane travel time according to the lane-by-lane spot speed and the travel locus.

At this time, since the lane departure point speed only represents the speed of the point where the vehicle detection system is installed, the travel time calculation unit 120 estimates the lane travel time for the entire road section based on the lane departure point speed. For example, the travel time calculation unit 120 may estimate the lane travel speed assuming that the vehicle speed is the same throughout the entire road section.

The travel time calculation unit 120 determines whether or not the probe vehicle 10 travels in the straight lane or the direction change lane using the travel trajectory of the probe vehicle 10, More time can be calculated.

In this case, the travel time calculation unit 120 corrects the travel time per lane estimated at the lane-by-lane point speed based on the vehicle detection system, using the lane-by-lane traveling time calculated from the traveling locus of the probe vehicle 10 It can be stored as a lane-by-lane traffic time for a road section where the vehicle detection system is not installed.

On the other hand, the above-described direction change lane means a lane on which a vehicle enters, advances, turns left or right, and a straight lane means a lane on which a vehicle runs straight.

Also, the travel time calculation unit 120 may determine that the travel route is a trajectory of a direction change lane when the shape of the travel locus is a curve or a specific direction, compares the travel route with an electronic map showing the road region, It is possible to determine the trajectory of running to the lane.

Also, the travel time calculation unit 120 may calculate the travel time as a difference between the time when the probe vehicle 10 entered the straight lane or the direction change lane and the time when the probe vehicle 10 entered the specific lane. In addition, the travel time calculation unit 120 may calculate an average value of the driving trajectory as a lane-by-lane traveling time when there are a plurality of running trails of straight lanes or a plurality of trajectories of the lane changing lanes.

The travel time distribution generating unit 130 generates a travel time distribution for each road section and lane. The travel time distribution generating unit 130 matches the travel time calculated by the travel time calculator 120 with the corresponding road section, And generates a travel time distribution for each lane of the lane and the road lane.

That is, each time the travel time distribution generator 130 collects the lane departure speed and travel locus from the collecting unit 110 and calculates the lane travel time by the travel time calculator 120, It may be arranged to repeatedly perform the process of classifying the calculated travel time of each lane according to each road section and updating the existing travel time distribution. Also, the travel time distribution generating unit 130 can update the travel time distribution using Bayesian-based machine learning.

Meanwhile, since it takes a predetermined time to generate the travel time distribution for all the road sections, the travel time distribution generator 130 classifies each road section according to a predetermined road type, The travel time distribution can be matched and stored.

At this time, the road types set in the travel time distribution generator 130 can be classified according to the types of roads, the number of lanes, the geometry according to road shapes, and the connection structure of the branching and joining sections.

The lane road travel time calculating unit 140 calculates the lane travel time for each road section. Based on the travel time distribution generated by the travel time distribution generating unit 130, the lane travel time calculating unit 140 calculates the lane travel time And calculates the lane travel time corresponding to the calculated road travel time.

Preferably, when the road travel time for a specific road section is input in real time from the travel time calculator 120, the lane travel time calculator 140 calculates cumulative lane travel times It is possible to calculate the travel time on the basis of the distribution of the travel time for the corresponding road section.

At this time, the lane travel time calculated by the lane travel time calculating unit 140 reflects the traffic time and the traffic situation for each lane of the road section in real time.

However, if the traffic time distribution for the corresponding road section does not exist, the traffic lane travel time calculating section 140 selects a road type most similar to the road section, and then, based on the travel time distribution of the selected road type It is possible to calculate the travel time by the car.

The service unit 150 serves to provide traffic information, and can provide traffic information that maps at least one of a road travel time and a lane travel time to an electronic map on which roads are displayed.

In addition, the service unit 150 provides traffic information to a mobile terminal including a navigation device or a smart phone installed in a service target vehicle 20 that runs on a road, and provides traffic information for a road section in which a plurality of lanes exist Traffic information according to time can be provided.

For example, as shown in FIG. 3, in a road section in which a straight lane and an exit lane for advancing into another road exist at the same time, when the straight lane is smooth and the lane lane is congested, the service section 150 is smooth A specific color indicating a state, and a lane connected to an advanced lane may be displayed in a different color indicating a stagnated state to provide lane-specific traffic information.

In addition, the service unit 150 can transmit traffic information for each road section and traffic information for each lane to the service target vehicle 20 through a wired and wireless communication network including a mobile communication network and the Internet, And may further include a database in which an electronic map of a car unit is stored for the service.

Therefore, the traffic information providing system 100 according to the embodiment of the present invention can provide the traffic information for the route that the driver of the vehicle can travel to the destination in the shortest time for each lane, The driver of the vehicle can confirm the existing road in advance.

4 is a view for explaining a traffic information providing method according to an embodiment of the present invention.

Referring to FIG. 4, a traffic information providing method performed in the traffic information providing system according to an embodiment of the present invention will be described.

However, since the functions performed in the traffic information providing method shown in FIG. 4 are all performed in the traffic information providing system described with reference to FIGS. 1 to 3, all of the functions described with reference to FIGS. 1 to 3 Function is performed in the traffic information providing method according to the preferred embodiment of the present invention, and all the functions described with reference to FIG. 4 are performed in the traffic information providing system according to the preferred embodiment of the present invention.

First, the collecting section collects a driving trajectory of a probe vehicle running on a road, and collects a star point speed from the vehicle detection system installed on the road (S110).

Next, the travel time calculation unit calculates a lane-by-lane travel time according to the lane-by-lane point speed and the travel locus (S120).

At this time, the travel time calculation section estimates the lane-by-lane travel time for the entire road section based on the lane-by-lane spot speed, or determines whether the vehicle has traveled in the straight lane or the direction change lane according to the travel trajectory of the probe vehicle, The time taken to pass the road section along the road can be calculated as the lane departure time. Here, the direction change lane means a lane on which a vehicle enters, advances, turns left or right, and a straight lane means a lane on which a vehicle runs straight.

Then, the travel time distribution generator generates a traffic time distribution for each road section and lane by matching the lane travel time with the corresponding road section (S130).

At this time, the travel time distribution generating unit compares the calculated travel times of the lanes with the road segments every time lane-by-lane point speeds and travel trajectories of the probe vehicle are collected and lane-by-lane travel times are calculated for the respective road lanes And generates a travel time distribution and updates the existing travel time distribution if it exists.

Also, the travel time distribution generator may classify each road section according to a predetermined road type, and may match the travel time distribution for each road type.

Next, the travel trajectory of the probe vehicle traveling on the road through the collecting unit is collected in real time (S140).

Next, the travel time calculation unit calculates the road travel time according to the time when the probe vehicle entered and the time when the probe vehicle entered the road section by using the travel locus (S150).

At this time, the travel time calculation unit may calculate a difference value between the time when the probe vehicle entered the road section and the time when the probe vehicle entered the road section as the road travel time.

Next, the lane travel time corresponding to the road travel time is calculated based on the lane travel time calculating section road type or the pre-stored travel time distribution (S160).

At this time, the lane travel time calculating unit calculates the lane travel time by applying the travel time distribution corresponding to the road section when the road travel time for the specific road section is input.

However, in the case of a road section in which there is no travel time distribution, the lane travel time calculating section may calculate the lane travel time by selecting the most similar road type and applying the travel time distribution of the corresponding road type.

Then, the service unit provides the service target vehicle with the traffic information that maps at least one of the road travel time and the lane travel time to the electronic map on which the road is displayed (S170).

When step 170 is completed, the travel time distribution is updated again from step 110, and the lane travel time is newly calculated according to the travel trajectory of the probe vehicle collected again in step 140 So that the process of providing traffic information can be repeated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

110: collecting section
120: Travel time calculation unit
130: travel time distribution generator
140: Traffic lane calculation unit
150:

Claims (12)

A collecting unit for collecting a driving trajectory of a probe vehicle running on a road in real time and collecting a star point speed from a vehicle detection system installed on the road;
The road travel time according to the time when the probe vehicle entered and the time when the probe vehicle entered by the road section is calculated in real time using the collected travel trajectory and the difference between the lane departure time and the lane departure time A travel time calculation unit for calculating a star travel time;
Each road section is classified according to a preset road type, and each time a lane departure time is calculated from the travel time calculation section, the lane departure time is matched with each road section and cumulatively stored. A traffic time distribution generator for generating a traffic time distribution or updating an existing traffic time distribution;
A lane departure time calculating unit for calculating lane travel time corresponding to the calculated road travel time based on the travel time distribution in which the lane travel time of the road lane is accumulated when the road lane travel time of the road lane is calculated from the travel time calculating unit, A travel time calculating unit; And
And a service unit for providing traffic information in which at least one of a road travel time and a lane travel time is mapped to an electronic map on which a road is displayed,
The lane road travel time calculation unit calculates,
Wherein the road traffic time is calculated by selecting the most similar road type and applying the traffic time distribution of the corresponding road type in the case of a road section in which there is no traffic time distribution.
delete The method according to claim 1,
The travel time calculation section determines a direction change lane on which the vehicle enters, advances, left turns, and right turns on the road section in the same direction based on the collected travel trajectory and a straight lane on which the vehicle runs straight, And calculating a travel time per lane for the traffic information providing system.
delete The method according to claim 1,
Wherein the lane travel time calculating unit calculates the lane travel time by applying a travel time distribution corresponding to the road section when the road travel time for the specific road section is inputted.
delete A traffic information providing method performed in a traffic information providing system,
(A) the traffic information providing system collecting a star point velocity from a vehicle trajectory of a probe vehicle traveling on a road and a vehicle detection system installed on the road;
(B) calculating, by the traffic information providing system, the lane-by-lane traffic time according to the collected lane-specific speed and the collected trajectory;
(C) The traffic information providing system classifies each road section according to a predetermined road type, accumulates the lane-by-lane traffic time with the corresponding road section to generate a traffic time distribution for each road section and lane, Updating a travel time distribution;
(1) The traffic information providing system includes: collecting a trajectory of a probe vehicle traveling on a road in real time;
(2) the traffic information providing system calculates the road travel time according to the time when the probe vehicle entered and the time when the probe vehicle entered the road section by using the collected travel trajectory;
(3) calculating the lane travel time corresponding to the calculated road travel time based on the road type or the previously stored travel time distribution; And
(4) The traffic information providing system may include traffic information mapping at least one of a road travel time and a lane travel time to an electronic map displayed with a road,
In the step (3), the traffic information providing system may include:
Wherein the travel time is calculated by selecting the most similar road type and applying the travel time distribution of the corresponding road type in the case of a road section in which there is no travel time distribution.
delete 8. The method of claim 7,
In the step (B), the traffic information providing system may include a direction change lane in which the vehicle enters, advances, left, and right turns on the road section in the same direction based on the collected trajectory, Determining a straight-ahead lane, and calculating lane-by-lane traffic time for each lane.
delete 8. The method of claim 7,
Wherein the traffic information providing system calculates the lane travel time by applying a traffic time distribution corresponding to the road section when the road traffic time for the specific road section is input in the step (3) Delivery method. delete
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190080328A (en) * 2017-12-28 2019-07-08 현대자동차주식회사 Apparatus and method for generating path-based traffic information
KR20220095920A (en) * 2020-12-30 2022-07-07 인천대학교 산학협력단 System and method for cell based measurement of trip entry and exit point volume using vehicle trajectory

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Publication number Priority date Publication date Assignee Title
KR101346220B1 (en) * 2012-11-02 2014-01-03 현대엠엔소프트 주식회사 Apparatus and method for providing traffic information

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Publication number Priority date Publication date Assignee Title
KR101346220B1 (en) * 2012-11-02 2014-01-03 현대엠엔소프트 주식회사 Apparatus and method for providing traffic information

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190080328A (en) * 2017-12-28 2019-07-08 현대자동차주식회사 Apparatus and method for generating path-based traffic information
KR102444668B1 (en) 2017-12-28 2022-09-19 현대자동차주식회사 Apparatus and method for generating path-based traffic information
KR20220095920A (en) * 2020-12-30 2022-07-07 인천대학교 산학협력단 System and method for cell based measurement of trip entry and exit point volume using vehicle trajectory
KR102429395B1 (en) 2020-12-30 2022-08-03 인천대학교 산학협력단 System and method for cell based measurement of trip entry and exit point volume using vehicle trajectory

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