KR20190005598A - Vehicle control system for automatic interlocking of traffic signal and method thereof - Google Patents

Abstract

The present invention relates to a vehicle control system for automatic interlocking of a traffic signal and a method thereof, wherein a driving possible distance and a crossroad passing distance are calculated during a traffic signal lighting remaining time based on state information of a traffic signal for a vehicle to approach a crossroad, and based on the calculated driving possible distance and the crossroad passing distance, a warning message to induce braking of the vehicle is generated to acquire state information of a traffic signal in real time. Therefore, in accordance with the state information of the traffic signal, a response speed of a driver can be minimally reduced, and a traffic accident generated in case of violation of the traffic signal can be minimally reduced.

Description

TECHNICAL FIELD [0001] The present invention relates to a vehicle control system and method, and more particularly,

The present invention relates to a system and method for automatically interlocking a traffic signal, and more particularly, to a system and method for controlling an inter-vehicle distance, And a warning message for inducing braking of the vehicle on the basis of the intersection passing distance.

Regardless of the skill of driving a vehicle, most vehicle drivers may or may not be able to take proper care of the surrounding situation during operation. And most of these situations increase the likelihood of accidents between car and car or between car and car.

This situation can occur especially at crosswalks or at intersections. If the driver of the vehicle intentionally or unintentionally ignores or overlooks the signals of the intersection and / or the crosswalk, this will of course lead to vehicle and human accidents.

If the system mounted on the vehicle senses information about the outside of the vehicle and informs or warns the driver, the driver has other means to prevent accidents in addition to his / her own attention. And the user's convenience.

Especially, it is possible to combine not only the information about the situation outside the vehicle but also the information about the operation of the vehicle itself, and use it as a premise of the logical condition, so that the driver can be notified more precisely about the situation change around the vehicle will be.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide a vehicle distance control method and a vehicle distance control method that calculate a travelable distance and an intersection passing distance during a remaining time of lighting a traffic light based on signal- It is possible to acquire the traffic light status information in real time by generating the warning message for driving the vehicle and to reduce the response speed of the driver according to the traffic light status information to a minimum, And to provide a vehicle control system and method for automatically interlocking traffic signals that can reduce traffic accidents to a minimum.

To achieve these and other advantages and in accordance with the purpose of the present invention, as embodied and broadly described herein,

A GPS receiver for collecting vehicle location information;

A traffic light information collecting unit for reading the traffic light state information being accessed based on the vehicle location information in the pre-built database; And

Based on the traffic light state information and the vehicle position information, generates a warning message for inducing braking of the vehicle based on the travelable distance derived from the intersection traffic light state information being accessed, and the intersection passing distance derived based on the vehicle speed and position information of the vehicle And < / RTI >

Preferably, the Arduino module includes: a travelable distance obtaining module for deriving a remaining travel time of an intersection signal lamp being accessed based on traffic light condition information, and deriving a travelable distance for a remaining remaining time of an intersection traffic light derived; An intersection passing distance derivation module for deriving an intersection passing distance based on the received vehicle position information and vehicle speed information; And a control module for generating a warning message for inducing braking of the vehicle on the basis of the travelable distance and the intersection passing distance.

Preferably, the control module may be configured to generate the warning message if the travelable distance is less than the intersection passing distance.

Preferably, the arduino further includes a braking distance deriving module for deriving a braking distance and an entering distance to the intersection based on the vehicle position information and the vehicle speed information, and the control module controls the braking distance calculation unit such that the intersection entry remaining distance reaches the braking distance It may be provided to brake the vehicle.

Preferably, Arduino includes a visualization module for visualizing the braking distance of the vehicle so that it can be confirmed by a browser supporting a mobile application and html5, and a notification module for generating a warning sound based on a warning message of the control module to induce braking of the vehicle .

A method for controlling a traffic signal automatic interlocking vehicle according to another embodiment of the present invention includes the steps of: (a) calculating a remaining time of an intersection signal lamp lighting based on traffic light condition information, Deriving a travelable distance; (b) deriving an intersection passing distance based on the received vehicle position information and vehicle speed information by the intersection passing distance deriving module; And (c) generating a warning message for inducing braking of the vehicle when the control module is smaller than the intersection passing distance.

Preferably, the traffic signal automatic interlocking vehicle control method further comprises: (d) deriving a braking distance and an intersection entry remaining distance based on the vehicle position information and vehicle speed information in the braking distance deriving module; And (e) braking the vehicle when the intersection entry remaining distance reaches the braking distance.

According to the present invention, a warning message for inducing braking of the vehicle on the basis of the calculated travelable distance and crossing passage distance is calculated based on the traffic light state information during approaching intersection, The traffic light status information can be obtained in real time. Accordingly, it is possible to reduce the driver's response speed according to the traffic light condition information to a minimum, and to reduce the traffic accident occurring when the traffic light is broken. .

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further understand the technical idea of the invention. And should not be construed as limiting.
1 is a block diagram illustrating a configuration of a traffic signal automatic interlocking vehicle control system according to an embodiment of the present invention.
FIG. 2 is a view showing a detailed configuration of an Arduino system of a system for controlling a traffic signal automatic interlocking vehicle according to an embodiment of the present invention.
3 is a diagram illustrating a hardware configuration of a traffic signal automatic interlocking vehicle control system according to an embodiment of the present invention.
4 is an overall flowchart of a method for controlling a traffic signal automatic interlocking vehicle according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Brief Description of the Drawings The advantages and features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described hereinafter with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. Also, as used herein, the term "part " refers to a hardware component such as software, FPGA or ASIC, and" part " However, "part" is not meant to be limited to software or hardware. "Part" may be configured to reside on an addressable storage medium and may be configured to play back one or more processors.

Thus, by way of example, and not limitation, "part (s) " refers to components such as software components, object oriented software components, class components and task components, and processes, Subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays and variables. The functions provided in the components and "parts " may be combined into a smaller number of components and" parts " or further separated into additional components and "parts ".

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. In order to clearly explain the present invention in the drawings, parts not related to the description will be omitted.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a view illustrating a configuration of a vehicle control system for automatically interlocking a traffic signal according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating a detailed configuration of the automobile shown in FIG.

1 and 2, a traffic signal automatic interlocking vehicle control system according to an embodiment of the present invention includes a GPS receiving unit 100, a signal light information collecting unit 200, and an Arduino 300 . The system shown in FIG. 1 generates a warning message for inducing braking of the vehicle based on the intersecting distance possible during the remaining time of lighting the traffic light, the intersection passing distance calculated based on the vehicle speed and the position information, Only the components related to the present embodiment are shown as examples for generating a warning message for inducing braking of the vehicle based on the braking distance. Therefore, it will be understood by those skilled in the art that other general-purpose components other than the components shown in Figs. 1 and 2 can be further included.

The GPS receiver 100 calculates the position information of the vehicle by calculating the distance between the GPS satellite and the GPS receiver as coordinate values. For example, just as you can draw three circles with three distance data in a two-dimensional plane, you can find the position of the vehicle at the intersection of the four spheres with the four distance data in the three dimensions, It is possible to derive the position information of the vehicle by using only three GPS satellites because the GPS satellite itself has one sphere shape. Accurate location information of the vehicle is derived by correcting the errors of the arrival time of the radio waves sent from the GPS artificial satellite and the acquired vehicle location information caused by the time difference between the GPS receiver and the clock mounted on the satellite. The process of deriving the accurate vehicle position information in the GPS receiver 100 can be understood by those skilled in the art in connection with the embodiments of the present invention.

On the other hand, the signal light information receiving unit 200 reads the status information of the intersection traffic light and the status information of the crosswalk stop signal that are being accessed based on the vehicle location information of the GPS receiver 100 in the pre-built database of information on the traffic light . In the present embodiment, the database is provided separately from the signal light information receiving unit 200. However, these configurations are not limited to the separate And one or a plurality of configurations of these configurations can be integrally configured as one device with another member or management apparatus.

One of the approaching intersection traffic light status information and the crosswalk stop traffic light status information based on the vehicle location information is transmitted to the adouno 300. Here, the status information of each of the intersection traffic lights or the crosswalk stop signals includes the lighting color of the traffic light being accessed, the lighting start time and lighting end time, and the remaining lighting time of the color.

The Arduino 300 can refine the values received through the network from the signal light information receiving unit 200, analyze it through its own algorithm, and transmit the analysis result through a speaker.

Hereinafter, an autonomous control process of the vehicle for an intersection signal light during access based on the vehicle position information will be described with reference to FIG.

2, the Arduino 300 includes a travelable distance obtaining module 311, an intersection passing distance deriving module 312, a control module 313, a braking distance deriving module 314, a visualization module 315 ), And an alarm module 316.

The travelable distance acquiring module 311 acquires the remaining time of an intersection signal lamp being accessed from the intersection traffic light status information read from the traffic light information receiving unit 200. [ That is, the traffic light lighting remaining time is derived from the difference between the lighting start time and the lighting end time of the blue traffic light from the traffic light status information.

The travelable distance obtaining module 311 derives the travelable distance L1 during the remaining time of lighting the obtained intersection traffic lights and the travelable distance L1 is transmitted to the control module 313. [ Here, a series of processes for deriving the travelable distance L1 during the remaining time of turning on the intersection signal lamp based on the vehicle position information and the vehicle speed can be understood by those skilled in the art.

The intersection passing distance derivation module 312 derives the intersection passing distance L2, which is a distance to the position where the intersection signal lamp is installed, according to the vehicle speed information and the vehicle position information. The derived intersection passing distance L2 is calculated by the control module 313, Lt; / RTI > Here, a series of processes for deriving the intersection passing distance L2 based on the vehicle position information and the vehicle speed can be understood by those skilled in the art in connection with the embodiments of the present invention.

The control module 314 determines whether the intersection can pass the intersection within the lighting time of the intersection signal light based on the distance L1 to be traveled and the distance L2 to travel during the remaining lighting time of the intersection signal lamp. Lt; RTI ID = 0.0 > braking < / RTI > Here, the determination as to whether or not the vehicle can pass through the intersection within the lighting time of the intersection signal lamp is made based on a comparison between the distance travelable and the distance to pass through the intersection. If the distance L1 is smaller than the distance L2, The warning message is generated.

The braking distance derivation module 314 derives the braking distance L3 and the intersection entry remaining distance L4 of the vehicle on the basis of the vehicle position information and the vehicle speed information and transfers the braking distance L3 and the intersection entry remaining distance L4 to the control module 313, Brakes the vehicle when the received braking distance L3 reaches the intersection entry remaining distance L4.

(L1) and the intersection passing distance (L2) for the remaining time of lighting the traffic lights based on the traffic light state information in the intersection approaching, and based on the calculated travelable distance (L1) and the intersection passing distance (L2) By generating a warning message for inducing the braking of the vehicle, it is possible to acquire the traffic light status information in real time, thereby reducing the driver's response speed according to the traffic light status information to a minimum, The accident can be minimized.

(L1) and an intersection passing distance (L2) during the remaining time of lighting the traffic lights based on the traffic light state information in which the vehicle is approaching the intersection, and calculates the traveling distance L1 and the intersection passing distance A series of processes for generating a warning message for inducing braking will be described with reference to FIG.

FIG. 4 is a flowchart illustrating a process for controlling an automobile of an automobile according to an embodiment of the present invention. Referring to FIG. 4, a process for controlling an automotive interlocking vehicle according to another exemplary embodiment of the present invention will be described.

First, the travelable distance obtaining module 311 obtains the remaining time of the traffic lights when the traffic light status information read from the traffic light information receiver 200 is not a stop signal, And derives the travelable distance L1 during the remaining time (S1 to S4).

Next, the intersection passing distance deriving module 312 derives an intersection passing distance L2, which is a distance from the vehicle speed information and the vehicle position information to the position where the traffic lights are installed (S5).

The control module 313 transmits the intersection passing distance L2 to the visualization module 315 and displays the processed intersection passing distance L2 on the basis of the intersection passing distance L2, A warning message is generated and transmitted to the alarm module 316 (S6 to S8).

The braking distance derivation module 314 derives the vehicle braking distance L3 and the intersection entry remaining distance L4 based on the vehicle speed information and the vehicle position information and outputs the derived braking distance L3 to the intersection entry remaining distance L4 ), The control module 313 performs the vehicle braking (S9 to S11).

The visualization module 315 and the alarm module 316 in the embodiment of the present invention are illustrated as being dependent on the ádino 300 for convenience of explanation, And the functions may be integrated into one or more servers. It should be noted that the configuration related to the present invention will be described with the convenience of explanation. A module for providing various functions such as providing a non-autonomous vehicle control service, which is shown as necessary, through a user smart phone application (App) using a wireless network, and the like.

For example, in the embodiment of the present invention, the intersection entry is described. However, the present invention is applicable to the rotation and the right turn, and it can be understood by those skilled in the art.

If the traffic light status information being accessed is a pedestrian stop signal, the braking distance acquisition module derives the remaining lighting time of the stop signal from the approaching traffic light status information when the road being accessed is based on the vehicle location information, The braking distance deriving module derives the braking distance based on the received vehicle speed information and calculates the braking distance based on the derived braking distance and the braking distance based on the derived braking distance Lt; RTI ID = 0.0 > a < / RTI >

A warning message for generating a warning message for inducing braking of the vehicle on the basis of the calculated travelable distance and intersection passing distance is calculated by calculating the travelable distance and the crossing passage distance during the remaining time of lighting the traffic lights based on the traffic light state information in approaching the intersection, It is possible to obtain the traffic light status information in real time, thereby reducing the driver's speed corresponding to the traffic light condition information to a minimum and to reduce the traffic accident occurring when the traffic signal violation is minimized. It is possible to make a great progress in terms of the accuracy and reliability of operation of the method and the method and further the performance efficiency, and the possibility of commercialization or sales of the autonomous controlled vehicle is not only sufficient but also practically possible, .

Claims (7)

A GPS receiver for collecting vehicle location information;
A traffic light information collecting unit for reading the traffic light state information being accessed based on the vehicle location information in the pre-built database; And
Based on the traffic light state information and the vehicle position information, generates a warning message for inducing braking of the vehicle based on the travelable distance derived from the intersection traffic light state information being accessed, and the intersection passing distance derived based on the vehicle speed and position information of the vehicle Wherein the vehicle control system comprises a vehicle control unit, The method of claim 1,
A travelable distance obtaining module for deriving a travelable distance during the remaining time of an intersection signal lamp illuminated after deriving the remaining time of an intersection signal lamp lighting based on traffic light status information;
An intersection passing distance deriving module for deriving an intersection passing distance based on the received vehicle position information and vehicle speed information; And
And a control module for generating a warning message for inducing braking of the vehicle on the basis of the travelable distance and the intersection passing distance. 3. The apparatus of claim 2,
And the warning message is generated when the travelable distance is smaller than the intersection passing distance. 3. The method of claim 2,
Further comprising a braking distance deriving module for deriving a braking distance and an intersection entry remaining distance based on the vehicle position information and vehicle speed information,
The control module includes:
And when the intersection entry remaining distance reaches the braking distance, the vehicle is braked. 5. The method of claim 4,
A visualization module for visualizing the braking distance of the vehicle so that it can be confirmed by a mobile application and a browser supporting html5; And
Further comprising a notification module for generating a warning sound based on a warning message of the control module to induce braking of the vehicle. (a) deriving a remaining travel time of the intersection signal lamp that is being accessed based on the traffic light condition information, and deriving the travelable distance during the remaining time of the intersection traffic light illumination derived;
(b) deriving an intersection passing distance based on the received vehicle position information and vehicle speed information by the intersection passing distance deriving module; And
(c) generating a warning message for inducing braking of the vehicle when the controllable module is smaller than the intersecting passage distance. The method as claimed in claim 6, wherein the traffic signal automatic interlocking vehicle control method further comprises:
(d) deriving a braking distance and an intersection entry remaining distance based on the vehicle position information and the vehicle speed information in the braking distance derivation module; And
(e) braking the vehicle when the intersection entry remaining distance reaches the braking distance.

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