KR102818011B1 - Method of providing driving guide information for vehicle - Google Patents

Abstract

The present invention relates to a method for providing vehicle driving guidance information, and is characterized by including a step in which a server collects driving information including speed, location and lane information of at least one vehicle among vehicles driving in a certain section, a step in which the server determines whether a vehicle with a dangerous factor exists in the section based on the collected driving information, and a step in which the server provides driving guidance information to the vehicle if a vehicle with a dangerous factor exists in the section.

Description

{METHOD OF PROVIDING DRIVING GUIDE INFORMATION FOR VEHICLE}

The present invention relates to a method for providing vehicle driving guidance information, and more specifically, to a method for providing vehicle driving guidance information for providing driving guidance information to a vehicle having risk factors.

Recently, technologies have been provided to minimize operating and time costs by providing real-time section traffic information to road users, and to prevent traffic concentration by dispersing vehicles as much as possible, thereby increasing the efficiency of limited roads.

Such traffic information is generally produced by traffic information providing devices based on information provided by multiple probe vehicles, and traffic information providing devices often produce traffic information by reflecting the average speed per section calculated using map data.

These map data include road links, a list of nodes for each link, coordinates for each node, etc., and conventional traffic information providing devices use these map data and information provided by probe vehicles to calculate the average speed for each link or the average speed for a specific section to produce traffic information.

For example, a service was provided that allows users to check road conditions by displaying information on the map such as blue for roads with smooth traffic, yellow for roads with delays (or slow-moving traffic), and red for roads with congestion.

Meanwhile, the background technology of the present invention is disclosed in Korean Patent Publication No. 10-2007-0042445 (April 23, 2007).

However, as mentioned above, the existing traffic information provision services had the problem of only providing information on congested sections or speeds by section.

The present invention is intended to solve the problems of the conventional traffic information provision service system as described above, and provides a method for providing vehicle driving guidance information capable of adjusting the overall traffic flow of each section by analyzing risk factors of each section and providing guidance information based on the analyzed results.

The method for providing vehicle driving guidance information according to the present invention is characterized by including the steps of: a server collecting driving information including speed, location, and lane information of at least one vehicle among vehicles driving in a certain section; a step by the server determining whether a vehicle with a risk factor exists in the section based on the collected driving information; and a step by the server providing driving guidance information to the vehicle if a vehicle with a risk factor exists in the section.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server is characterized in that it determines whether a risk factor exists in the vehicle based on the speed of the vehicle, the average speed of the lane in which the vehicle is driving, and/or the legal speed of the section.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server determines that a risk factor exists in the vehicle if the speed of the vehicle exceeds the average speed or the legal speed, and in the step of providing the driving guidance information, the server provides deceleration guidance information to the vehicle.

In the step of determining whether a vehicle with the risk factor of the present invention exists, if there is a vehicle whose distance to the vehicle in front is outside the safe distance range corresponding to the average speed, the server determines that the vehicle has a risk factor, and in the step of providing the driving guidance information, the server provides deceleration or acceleration guidance information for adjusting the appropriate distance to the vehicle.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server is characterized in that it determines whether a vehicle with the risk factor exists based on the average speed of each lane in the section.

The step of determining whether a vehicle with the risk factor of the present invention exists includes a step in which, if the average speed of the driving lane is faster than the average speed of the passing lane among each lane of the section, and the difference between the average speed of the passing lane and the average speed of the driving lane is equal to or greater than a set value, the server determines whether a vehicle that impedes the speed flow exists in the passing lane, and the server is characterized in that, if a vehicle that impedes the speed flow exists, the server determines that the vehicle has a risk factor.

In the step of determining whether there is a vehicle that obstructs the speed flow of the present invention, the server is characterized in that, if there is a vehicle having a speed that is lower than the average speed of the passing lane by a set speed or more, the server determines that the vehicle is a vehicle that obstructs the speed flow.

In the step of providing the driving guidance information of the present invention, the server is characterized by providing lane change guidance information to the corresponding vehicle to the driving lane.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server is characterized in that it determines whether a risk factor exists in two vehicles located consecutively in one lane based on the speed of the two vehicles.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server determines that a risk factor exists in the vehicle located in front if one of the lanes is an overtaking lane, the speed of the vehicle located behind among the two vehicles is faster than the speed of the vehicle located in front, and there is no other vehicle within a set area of a driving lane adjacent to the vehicle located in front, and in the step of providing the driving guidance information, the server provides lane change guidance information to the vehicle located in front for changing lanes to the driving lane.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server determines that a risk factor exists in the two vehicles if one of the lanes is an overtaking lane, the speed of the vehicle located behind the two vehicles is faster than the speed of the vehicle located in front, another vehicle exists within a set area of a driving lane adjacent to the vehicle located in front, the speed of the vehicle located in front is faster than the speed of the other vehicle, and the speed of the vehicle located in front is faster than the statutory speed for the section. In this case, the server provides driving guidance information, wherein the server provides deceleration guidance information to the two vehicles to the statutory speed.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server determines that a risk factor exists in the two vehicles if one of the lanes is an overtaking lane, the speed of the vehicle located behind is faster than the speed of the vehicle located in front among the two vehicles, another vehicle exists within a set area of a driving lane adjacent to the vehicle located in front, the speed of the vehicle located in front is faster than the speed of the other vehicle, and the speed of the vehicle located in front is slower than the statutory speed of the section, and in the step of providing the driving guidance information, the server provides acceleration guidance information to the vehicle located in front to the statutory speed, and provides safe distance maintenance guidance information corresponding to the speed of the vehicle located in front to the vehicle located in the rear.

In the step of determining whether a vehicle with the risk factor of the present invention exists, the server determines that a risk factor exists in the vehicle located in front if one of the lanes is an overtaking lane, the speed of the vehicle located behind among the two vehicles is faster than the speed of the vehicle located in front, another vehicle exists within a set area of a driving lane adjacent to the vehicle located in front, and the speed of the vehicle located in front is not faster than the speed of the other vehicle, and in the step of providing the driving guidance information, the server provides lane change guidance information to the vehicle located in front for changing lanes to the driving lane.

The method for providing vehicle driving guidance information according to the present invention collects driving information including speed, location and lane information of each vehicle driving in an arbitrary section, analyzes risk factors within the relevant section through the collected information, and provides acceleration, deceleration and lane change guidance information to each vehicle based on the analyzed results, thereby having the effect of promoting safe and smooth vehicle operation by adjusting the overall traffic flow of the relevant section.

FIG. 1 is an exemplary diagram for explaining a system in which a method for providing vehicle driving guidance information according to one embodiment of the present invention is performed.
FIG. 2 is a flowchart for explaining a method for providing vehicle driving guidance information according to one embodiment of the present invention.
FIGS. 3 to 5 are exemplary diagrams for explaining specific operation methods of a vehicle driving guidance information providing method according to one embodiment of the present invention.

Hereinafter, with reference to the attached drawings, an embodiment of a method for providing vehicle driving guidance information according to the present invention will be described. In this process, the thickness of lines and the size of components illustrated in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, the definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is an exemplary diagram for explaining a system in which a vehicle driving guidance information providing method according to one embodiment of the present invention is performed, FIG. 2 is a flowchart for explaining a vehicle driving guidance information providing method according to one embodiment of the present invention, and FIGS. 3 to 5 are exemplary diagrams for explaining a specific operation method of a vehicle driving guidance information providing method according to one embodiment of the present invention, and with reference to these, a vehicle driving guidance information providing device according to the present embodiment will be explained as follows.

As illustrated in FIG. 1, the server (100) can collect driving information for providing driving guidance information from vehicles (110). Specifically, the server (100) can collect driving information such as speed, location, and lane information of each vehicle from multiple vehicles (110), and in addition, can be configured to collect identification information for identifying each vehicle, driving direction information of each vehicle, etc.

Such driving information can be detected through GPS modules, vehicle speed sensors, camera-based lane recognition systems, navigation modules, etc. mounted on each vehicle, and transmitted to a server (100) through a communication module mounted on the vehicle. Here, the camera-based lane recognition system refers to a system that acquires a front image through a front camera mounted on the vehicle, processes it, and determines which lane the vehicle is driving in. (For example, it can be determined that the vehicle is driving in the second lane from the left.)

Additionally, each vehicle may be equipped with a system for collecting information on other vehicles in the vicinity, or may be equipped with a system for transmitting information received from other vehicles through vehicle-to-vehicle communication to the server (100), and the server (100) may collect driving information in this manner.

In addition, the server (100) may collect the driving information described above through a traffic information infrastructure system installed on the road.

As shown in Fig. 2, the server (100) collects the speed, location, and lane information of each vehicle as described above (S200). At this time, the server (100) can divide the road into arbitrary sections and collect this information for each section, and for example, a link in general map data can be a criterion for dividing these sections.

Next, the server (100) determines whether there is a vehicle with a risk factor in the section based on the collected driving information (S210). Here, a vehicle with a risk factor means a vehicle that will receive driving guidance information, and a vehicle that obstructs the flow of the road or has the possibility of an accident can be determined as a vehicle with such a risk factor based on the analysis of the collected driving information.

If it is determined that a vehicle with a risk factor exists based on this judgment, the server (100) provides driving guidance information to the vehicle (S220). The driving guidance information provided here may include acceleration, deceleration, and lane change guidance information.

The specific operation method of the server (100) for determining the presence or absence of risk factors and providing driving guidance information as described above is described in more detail with reference to FIGS. 3 to 5 as follows.

As can be seen in FIG. 3, in the step (S210), the server (100) can determine whether there is a risk factor in the vehicle based on the speed of the vehicle, the average speed of the lane in which the vehicle is driving, and/or the legal speed of the section.

Specifically, the server (100) first determines that a risk factor exists in the vehicle if the speed of the vehicle exceeds the average speed of the lane in which the vehicle is driving or the legal speed of the section (S300). That is, the server (100) can determine that a vehicle is at risk of an accident, i.e., a vehicle with a risk factor, if the speed of each vehicle exceeds the legal speed of the section or the average speed of the lane in which the vehicle is driving.

At this time, the server (100) can calculate the average value of the speed of vehicles driving in a specific lane of the relevant section by using the driving information described above, and can derive the average speed described above, and the legal speed of the relevant section can be stored in advance in the server (100).

In this way, if the speed of the vehicle exceeds the average speed of the lane in which the vehicle is driving or the legal speed of the section, the server (100) provides deceleration guidance information to the vehicle (S310). That is, the server (100) can provide deceleration guidance information to a vehicle that is at risk of an accident due to speeding, and at this time, the server (100) can additionally provide information on the average speed of the lane in which the vehicle is driving or the legal speed of the section in which the vehicle is driving.

Meanwhile, even if the speed of the vehicle in question does not exceed the average speed of the lane in which the vehicle is driving and the legal speed of the section as a result of the judgment in the above step (S300), if the distance to the vehicle located in front of the vehicle in question is outside the safe distance range corresponding to the average speed, the server (100) can determine that there is a risk factor in the vehicle in question (S320).

That is, the server (100) can determine that there is a risk of accident in a vehicle that is not speeding, even if the vehicle is not maintaining a safe distance, and in this case, the server (100) provides deceleration or acceleration guidance information for adjusting the appropriate distance to the vehicle (S330). Here, acceleration guidance information is provided in addition to deceleration guidance information because a vehicle that is too far from the vehicle in front may obstruct the flow of the entire lane.

Meanwhile, the safety distance range corresponding to the average speed here can be basically stored in advance in the server (100).

In addition, as can be seen in FIG. 4, in the step (S210), the server (100) can determine whether there is a vehicle with a risk factor based on the average speed of each lane in the relevant section.

Specifically, if a passing lane and a driving lane exist separately in the section, and the average speed of the driving lane is faster than the average speed of the passing lane and the difference between the average speed of the passing lane and the average speed of the driving lane is greater than a set value, the server (100) determines whether there is a vehicle that impedes the speed flow in the passing lane (S400).

That is, if the average speed of the driving lane is faster than the average speed of the passing lane and the difference is greater than a set value, the server (100) determines that the flow of the passing lane is not normal, and can determine whether there is a vehicle that impedes the speed flow within the passing lane.

At this time, if there is a vehicle with a set speed lower than the average speed of the passing lane, the server (100) can determine that the vehicle is a vehicle that is obstructing the speed flow. In addition, a vehicle located at a point where the speed distribution of vehicles suddenly decreases or where the gap between vehicles suddenly narrows can be determined to be a vehicle that is obstructing the speed flow.

In this way, if there is a vehicle that impedes the speed flow, the server (100) can determine that there is a risk factor in the vehicle, and in this case, the server (100) provides lane change guidance information to the vehicle to change lanes (S410).

That is, the server (100) can guide a vehicle that impedes the speed flow of the passing lane to the driving lane so that the speed flow of the passing lane can be improved.

Here, the presence or absence of a passing lane and a driving lane for each section is determined by the shape of the road, and thus may be stored in advance in the server (100), and the set value and set speed may also be set in advance and stored in the server (100).

Meanwhile, as can be seen in FIG. 5, in the step (S210), the server (100) can determine whether there is a risk factor in two vehicles located consecutively in one lane based on the speed of the two vehicles.

Specifically, the server (100) first checks whether vehicle B approaches the rear of vehicle A driving in the passing lane (S500). That is, the server (100) can check whether one of the lanes is a passing lane and whether the speed of the vehicle (vehicle B) located at the rear is faster than the speed of the vehicle (vehicle A) located at the front among the two vehicles.

In other words, the server (100) can determine whether a risk factor exists by checking whether there is a vehicle attempting to overtake in the overtaking lane.

As a result of the verification in the above step (S500), if vehicle B approaches the rear of vehicle A driving in the passing lane, the server (100) checks whether there is another vehicle within the set area of the driving lane adjacent to vehicle A (S510). That is, the server (100) can check whether there is another vehicle within the area where vehicle A is attempting to change to the driving lane, and the set area here can be basically stored in advance.

As a result of the verification in the above step (S510), if there is another vehicle in the driving lane around vehicle A, the server (100) verifies whether the speed of vehicle A is faster than the speed of the other vehicle (S520). That is, the server (100) can compare the speed of vehicle A and the speed of the other vehicle to verify whether vehicle A has the speed required to move in the driving lane.

If the verification result of the above step (S520) shows that the speed of vehicle A is faster than the speed of other vehicles and that the speed of vehicle A is faster than the legal speed, the server (100) provides deceleration guidance information to vehicle A and vehicle B to the legal speed (S530).

That is, if the server (100) determines that the speed of vehicle A is sufficiently fast, it can provide deceleration guidance information to vehicles A and B to prevent speeding.

In addition, if the verification result of the above step (S520) shows that the speed of vehicle A is faster than the speed of other vehicles and the speed of vehicle A is slower than the legal speed, the server (100) provides vehicle A with acceleration guidance information to the legal speed and guides vehicle B to maintain a safe distance corresponding to the speed of vehicle A (S540).

That is, the server (100) determines that vehicle A should drive in the passing lane through comparison with other vehicles existing in the driving lane, but if the speed of vehicle A is slower than the legal speed, it guides acceleration to improve the overall road flow, and guides vehicle B to maintain a safe distance corresponding to the speed of vehicle A, thereby preventing an accident.

Meanwhile, in this embodiment, the legal speed may represent a range of speeds rather than a single speed value. In this case, faster than the legal speed may mean a speed value faster than the maximum value of the legal speed range, and slower than the legal speed may mean a speed value slower than the minimum value of the legal speed range.

In addition, if the result of the verification in the above step (S510) shows that there is no other vehicle in the driving lane around vehicle A, or if the result of the verification in the above step (S520) shows that the speed of vehicle A is not faster than the speed of other vehicles located in the driving lane, the server (100) provides vehicle A with lane change guidance information to the driving lane (S550).

That is, if the server (100) determines that it is appropriate for vehicle A to change lanes to the driving lane, it determines that only vehicle A has a risk factor and provides lane change guidance information, thereby promoting smooth flow on the road.

In this way, the vehicle driving guidance information providing method according to an embodiment of the present invention collects driving information including speed, location and lane information of each vehicle driving in an arbitrary section, analyzes risk factors within the relevant section through the collected information, and provides acceleration, deceleration and lane change guidance information to each vehicle based on the analyzed results, thereby adjusting the overall traffic flow of the relevant section to ensure safe and smooth vehicle operation.

Meanwhile, in the present invention, acceleration, deceleration, safe distance maintenance, and lane change guidance can be performed by a navigation device installed in each vehicle, and can be performed by outputting a voice message or screen related to the guidance.

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the technical protection scope of the present invention should be defined by the following patent claims.

100: Server
110: Vehicle

Claims (13)

A step in which a server collects driving information including speed, location, and lane information of at least one vehicle among the vehicles driving in a random section;
A step in which the server determines whether there is a vehicle with a risk factor in the section based on the collected driving information; and
If there is a vehicle with a risk factor in the above section, the server includes a step of providing driving guidance information to the vehicle.
The step of determining whether there is a vehicle with the above risk factor includes a step in which the server determines whether there is a vehicle that impedes the speed flow in the passing lane among each lane of the above section.
The above server determines that if there is a vehicle that obstructs the above speed flow, there is a risk factor in that vehicle.
A method for providing vehicle driving guidance information, characterized in that, in the step of determining whether a vehicle with the above risk factor exists, the server determines whether a vehicle that impedes the speed flow exists in the above passing lane if the average speed of the driving lane is faster than the average speed of the passing lane among each lane of the above section, and the difference between the average speed of the passing lane and the average speed of the driving lane is greater than a set value.
In the first paragraph,
A method for providing vehicle driving guidance information, characterized in that, in the step of determining whether a vehicle with the above risk factors exists, the server determines whether a risk factor exists in the vehicle based on the speed of the vehicle, the average speed of the lane in which the vehicle is driving, and/or the legal speed of the section.
In the second paragraph,
In the step of determining whether there is a vehicle with the above risk factors, the server determines that there is a risk factor in the vehicle if the speed of the vehicle exceeds the average speed or the legal speed.
A method for providing vehicle driving guidance information, characterized in that in the step of providing the driving guidance information, the server provides deceleration guidance information to the corresponding vehicle.
In the second paragraph,
In the step of determining whether there is a vehicle with the above risk factor, the server determines that there is a risk factor in the vehicle if there is a vehicle whose distance to the vehicle in front is outside the safe distance range corresponding to the average speed.
A method for providing vehicle driving guidance information, characterized in that, in the step of providing the driving guidance information, the server provides deceleration or acceleration guidance information for adjusting an appropriate interval to the corresponding vehicle.
delete delete In the first paragraph,
A method for providing vehicle driving guidance information, characterized in that, in the step of determining whether there is a vehicle that obstructs the speed flow, if there is a vehicle having a speed that is lower than the average speed of the passing lane by a set speed or more, the server determines that the vehicle is a vehicle that obstructs the speed flow.
In the first paragraph,
A method for providing vehicle driving guidance information, characterized in that, in the step of providing the driving guidance information, the server provides lane change guidance information to the corresponding vehicle.
A step in which a server collects driving information including speed, location, and lane information of at least one vehicle among the vehicles driving in a random section;
A step in which the server determines whether there is a vehicle with a risk factor in the section based on the collected driving information; and
If there is a vehicle with a risk factor in the above section, the server includes a step of providing driving guidance information to the vehicle.
A method for providing vehicle driving guidance information, characterized in that in the step of determining whether a vehicle with the above risk factor exists, the server determines whether a risk factor exists in the two vehicles by considering whether another vehicle exists within a set area of a driving lane adjacent to the vehicle in front when, among two vehicles continuously positioned in an overtaking lane, the speed of the vehicle positioned behind is faster than the speed of the vehicle positioned in front.
In Article 9,
In the step of determining whether there is a vehicle with the above risk factor, the server determines that there is a risk factor in the vehicle located in front if there is no other vehicle within the set area of the driving lane adjacent to the vehicle located in front.
A method for providing vehicle driving guidance information, characterized in that, in the step of providing the driving guidance information, the server provides lane change guidance information to the vehicle located ahead to the driving lane.
In Article 9,
In the step of determining whether a vehicle with the above risk factor exists, the server determines that there is a risk factor in the two vehicles if there is another vehicle within the set area of the driving lane adjacent to the vehicle located ahead, the speed of the vehicle located ahead is faster than the speed of the other vehicle, and the speed of the vehicle located ahead is faster than the legal speed of the section.
A method for providing vehicle driving guidance information, characterized in that in the step of providing the driving guidance information, the server provides deceleration guidance information to the two vehicles to the legal speed.
In Article 9,
In the step of determining whether there is a vehicle with the above risk factor, the server determines that there is a risk factor in the two vehicles if there is another vehicle within the set area of the driving lane adjacent to the vehicle located ahead, the speed of the vehicle located ahead is faster than the speed of the other vehicle, and the speed of the vehicle located ahead is slower than the legal speed of the section.
A method for providing vehicle driving guidance information, characterized in that, in the step of providing the driving guidance information, the server provides acceleration guidance information at the legal speed to the vehicle located in front, and provides guidance information for maintaining a safe distance corresponding to the speed of the vehicle located in front to the vehicle located behind.
In Article 9,
In the step of determining whether a vehicle with the above risk factor exists, the server determines that a risk factor exists in the vehicle located in front if another vehicle exists within the set area of the driving lane adjacent to the vehicle located in front and the speed of the vehicle located in front is not faster than the speed of the other vehicle.
A method for providing vehicle driving guidance information, characterized in that, in the step of providing the driving guidance information, the server provides lane change guidance information to the vehicle located ahead to the driving lane.

Images