KR101390906B1 - System and method for controlling winker according to the detection direction of tires - Google Patents

Abstract

The present invention relates to a direction indicator lamp control system and a method thereof for detecting a direction of a tire, and more particularly, The direction of the tire is controlled so that the front wheels of the vehicle are aligned in a straight line.
According to an aspect of the present invention, there is provided an inertial measurement apparatus comprising: an inertia measurement unit measuring a change amount of a steering wheel movement according to an operation of a driver and sensing a direction of the tire; A sensor unit for recognizing a lane by measuring a change in reflectance of the lane; The ultrasonic array sensor and the camera sensor attached to the driver's seat ceiling are used to determine whether or not the driver is in a drowsy state. When the driver is not in a drowsy state, information about the tire direction sensed through the inertia measurement unit, A determination unit for determining whether or not the lane change intention is present based on the change value of the lane change; And when it is determined through the determination unit that there is an intention to change lanes, the direction indicator in the corresponding direction is turned on, and if the change in the tire direction detected through the inertia measurement unit is less than the set range, A turn signal lamp management unit for turning off the turn signal lamp; .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a system and a method for controlling a direction indicator light,

The present invention relates to a system and a method for controlling a direction indicator light according to tire direction detection, and more particularly, to a system and method for automatically turning on / off a turn indicator light when a driver changes his / And a method thereof.

If the vehicle changes course and enters without turning on the turn signal, it can cause death if it collides with a motorcycle as well as a contact accident.

In particular, bad indicators such as bad weather conditions and nighttime signs may lead to major accidents. According to the traffic accident statistics of the National Police Agency in 2006, the number of traffic accidents that occurred during the lane change surged from '04, 414 cases to '06, and 1516 cases.

On the other hand, in relation to the lane departure prevention system, many applications and registrations have been made in addition to the Korean Patent Laid-Open No. 10-2002-0097357 (hereinafter referred to as the 'precedent document').

In the above prior art, the road information input from the roadside transmission apparatus to the onboard equipment and the departure determination reference angle are inputted, the δ value is obtained using the road width from the inputted road information, and the image captured by the CCD camera Setting a value of < RTI ID = 0.0 > 8 < / RTI > The center of gravity of each lane is detected and the middle value of the tilt angle for detecting the middle value of the tilt angles of the detected two lanes is detected after detecting the edges of the left lane and the right lane using the image step; Calculating an absolute value of a value obtained by subtracting a departure determination reference angle from an intermediate value of the tilt angles of the left and right lanes; And if the absolute value is greater than the delta value, returning to the step of setting the delta after generating an alarm that the lane is deviated, and if not, returning to the step of setting delta immediately; .

However, in the prior art as in the above-mentioned prior art, there is a limitation in not only notifying the intention of the driver but also not turning on the turn signal lamp automatically according to the intention of the driver.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is a first object of the present invention to automatically turn on / off a turn signal lamp when a lane change is made by determining a sleeping state of a driver and an intention to change lanes .

A second object of the present invention is to align the front wheels of the vehicle in a straight line by controlling the direction of the tires even at the time of the regular driving.

According to an aspect of the present invention, there is provided a direction indicator light control system for detecting a direction of a tire, comprising: an inertia measurement unit measuring a change amount of a steering wheel movement according to an operation of a driver and sensing a direction of the tire; A sensor unit for recognizing a lane by measuring a change in reflectance of the lane; The ultrasonic array sensor and the camera sensor attached to the driver's seat ceiling are used to determine whether or not the driver is in a drowsy state. When the driver is not in a drowsy state, information about the tire direction sensed through the inertia measurement unit, A determination unit for determining whether or not the lane change intention is present based on the change value of the lane change; And when it is determined through the determination unit that there is an intention to change lanes, the direction indicator in the corresponding direction is turned on, and if the change in the tire direction detected through the inertia measurement unit is less than the set range, A turn signal lamp management unit for turning off the turn signal lamp; .

The inertia measuring unit is an inertial measurement unit (IMU) mounted on the steering wheel, and measures an inclination of the vehicle.

Further, the sensor unit is an infrared sensor located in the side mirror of the vehicle.

Further, the sensor unit recognizes the lane by measuring changes in the reflectance along the black road, the white lane and the yellow center line.

Further, the judging unit may control the driver to display a warning in at least one of a blue, a tactile sense, and a warning when the user is in a drowsy state.

A tire direction control unit for controlling the direction of the tire to coincide with the reference line; And further comprising:

When the engine stop signal is transmitted, the tire direction control unit determines whether or not the direction of the tire coincides with the reference line based on the tire direction information sensed by the inertia measurement unit, and if not, To coincide with the reference line.

An information output unit that displays all information measured or generated through the inertial measurement unit, the sensor unit, the determination unit, the turn signal lamp management unit, and the tire direction control unit in real time in an audiovisual manner in conjunction with an instrument cluster of the vehicle; And further comprising:

The present invention relates to a direction indicator light control method in accordance with a direction of a tire for displaying all information measured or generated in real time in an audiovisual manner in cooperation with an instrument cluster of a vehicle, Measuring a change amount of a steering wheel movement according to an operation of the steering wheel, and sensing a tire direction according to the variation; (b) recognizing the lane by measuring a change in the reflectance of the sensor unit lane; (c) determining whether the driver is in a drowsy state using the ultrasonic array sensor and the camera sensor attached to the driver's seat ceiling; (d) if it is determined in the step (c) that the drowsy state is not satisfied, the determining unit determines the information about the tire direction sensed through the step (a) and the change value of the reflectance measured through the step (b) Determining whether there is an intention to change lanes; (e) if it is determined in step (d) that the intention to change lanes is present, the turn indicator management unit lights the turn indicator in the corresponding direction; (f) determining whether the change of the tire direction sensed through the step (a) is below the set range; And (g) when the change in the tire direction is equal to or less than the set range as a result of the determining in the step (f), determining that the lane change is completed and the lane change has been completed and turning off the turn signal light; .

And (h) if it is determined that the user is in the drowsy state as a result of the determination in step (c), the control unit controls the driver to display a warning in at least one of a warning, Implementing a procedure; And further comprising:

(I) if it is determined that there is no lane-changing intention as a result of the step (d), the turn signal lamp management unit performs the procedure to the step (a); And further comprising:

And (j) if the change in the tire direction exceeds the set range as a result of the determining in the step (f), the step of determining that the lane change is not completed and performing the procedure to the step (f) ; And further comprising:

According to the present invention as described above, it is possible to determine a sleepiness state of a driver and, when the driver is in a drowsy state, display a warning corresponding to the warning, blue and tactile, When turning the lane according to the intention, the direction indicator light in the corresponding direction can be automatically turned on / off.

According to the present invention, based on the tire direction information, it is determined whether or not the direction of the tire coincides with the reference line, and if the coincidence does not coincide with the reference line, the steering wheel The influence of the load on the vehicle on the wheel alignment (front wheel alignment) can be minimized and the collision can be prevented when the vehicle starts or stops in a narrow space. In case of an uphill or downhill, the vehicle can be prevented from slipping There is also an effect that can be done.

Brief Description of the Drawings Fig. 1 is an entire block diagram conceptually showing a direction indicator lamp control system according to an embodiment of the present invention. Fig.
FIG. 2 is an overall flowchart of a method of controlling a turn signal lamp according to an embodiment of the present invention. FIG.
3 is an overall flowchart of a tire direction control method according to an embodiment of the present invention;

Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

A direction indicator lamp control system according to an embodiment of the present invention will be described with reference to FIG.

FIG. 1 is a block diagram conceptually showing a direction indicator lamp control system (hereinafter referred to as 'system') S according to an embodiment of the present invention. As shown in FIG. 1, A sensor unit 200, a determination unit 300, a turn signal lamp management unit 400, a tire direction control unit 500, and an information output unit 600.

The inertial measurement unit 100 is an inertial measurement unit (IMU) mounted on a steering wheel (steering wheel) of a vehicle. The inertial measurement unit 100 measures a change amount of a steering wheel (handle) Lt; / RTI > In addition, the inertia measurement unit 100 measures an inclination of the vehicle.

The sensor unit 200 is an infrared sensor located in the side mirror of the vehicle, and recognizes the lane. Specifically, the sensor unit 200 recognizes the lane by measuring changes in the reflectance along the black road, the white lane, and the yellow center line.

The determination unit 300 determines whether the driver is in a drowsy state using the ultrasonic array sensor and the camera sensor attached to the driver's seat ceiling.

If it is determined that the vehicle is not in the drowsy state, the determination unit 300 determines, based on the information about the tire direction sensed through the inertia measurement unit 100 and the change value of the reflectance measured through the sensor unit 200, It is determined whether there is an intention to change.

On the other hand, when the driver is in the drowsy state, the controller 300 controls the information output unit 600 to visually display a warning to the driver, and controls the tactile display of the warning through the steering wheel (steering wheel).

When it is determined through the determination unit 300 that there is an intention to change lanes, the turn signal management unit 400 turns on a turn direction indicator in the corresponding direction.

If the change in the direction of the tire sensed through the inertia measurement unit 100 is less than the set range, the turn signal lamp management unit 400 determines that the lane change is completed and the changed lane is running, and turns off the turn signal lamp.

In order to achieve the second object of the present invention, the system (S) according to an embodiment of the present invention is characterized in that the direction of the tire is divided into a reference line (see FIG. 1) And a tire direction control unit 500 for controlling the tire direction.

That is, when the engine stop signal is transmitted from the ECU 10, instead of the travel signal, the tire direction controller 500 determines that the direction of the tire is the direction of the tire, based on the tire direction information sensed through the inertia measurement unit 100, And if not, controls the direction of the tire to coincide with the reference line.

Accordingly, even when the driver gets off without aligning the steering wheel (steering wheel), the influence of the load on the vehicle on the wheel alignment (front wheel alignment) can be minimized, the collision can be prevented in the event of a sudden start or stop in a narrow space, It is possible to prevent slipping of the vehicle.

The information output unit 600 outputs all information measured or generated through the inertial measurement unit 100, the sensor unit 200, the determination unit 300, the turn signal lamp management unit 400, and the tire direction control unit 500, And displays it in real time in audio-visual manner.

Hereinafter, a method of controlling a turn signal lamp according to a tire direction detection using a system according to an embodiment of the present invention and a tire direction control method will be described with reference to FIG. 2 to FIG.

FIG. 2 is an overall flowchart S100 of a method of controlling a turn signal lamp according to an embodiment of the present invention. As shown in FIG. 2, the inertia measuring unit 100 includes a steering wheel (steering wheel) (S110). The sensor unit 200 recognizes the lane by measuring changes in reflectance along the black road, the white lane, and the yellow center line (S120) ).

Thereafter, the determination unit 300 determines whether the driver is in a drowsy state using the ultrasonic array sensor and the camera sensor attached to the driver's seat ceiling (S130).

If it is determined that the vehicle is not in the drowsy state as a result of the determination in operation S 130, the determination unit 300 determines information about the tire direction sensed through the inertia measurement unit 100 and a change value of the reflectance measured through the sensor unit 200 Based on the determination, it is determined whether there is an intention to change lanes (S140).

If it is determined in step S140 that there is an intention to change lanes, the turn signal lamp management unit 400 lights the turn signal lamp in the corresponding direction (S150). If it is determined that there is no lane change intention, Implement procedures.

Thereafter, the turn signal managing unit 400 determines whether the change in the tire direction detected by the inertia measuring unit 100 is less than the set range (S160).

If it is determined in step S160 that the change in the tire direction is less than or equal to the preset range, the turn signal lamp management unit 400 determines that the lane change has been completed and the lane change has been made, and turns off the turn signal lamp (S170).

On the other hand, if it is determined in step S130 that the vehicle is in the drowsy state, the determination unit 300 controls the driver to visually display a warning through the information output unit 600 and displays a warning through the steering wheel After controlling to tactilely display, the procedure is executed in step S110 (S180).

If it is determined in step S160 that the change in the tire direction exceeds the set range, the turn signal lamp management unit 400 determines that the lane change has not been completed and performs the procedure to step S160.

3 is a flowchart (S200) of a tire direction control method according to an embodiment of the present invention. As shown in the figure, when the engine is stopped and the driver gets off, that is, When the engine stop signal is transmitted (S210), the tire direction controller 500 determines whether the direction of the tire does not coincide with the reference line based on the tire direction information sensed through the inertia measurement unit 100 S220).

As a result of the determination in step S220, if the direction does not coincide with the reference line, the tire direction controller 500 automatically controls the direction of the tire to match the reference line (S230).

At this time, the tire direction control unit 500 determines the inclination based on the inclination of the vehicle measured through the inertia measurement unit 100 when the vehicle is parked on the uphill and downhill according to the user's control signal input, , It is determined whether or not the direction of the tire coincides with the reference line, and if not, the tire direction can be automatically controlled to coincide with the reference line.

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It will be appreciated by those skilled in the art that numerous changes and modifications may be made without departing from the invention. Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

S: Direction indicator control system according to tire direction detection
100: inertia measurement unit 200: sensor unit
300: determination unit 400: direction indicator management unit
500: tire direction control unit 600: information output unit

Claims (12)

An inertia measuring unit (100) which measures a change amount of a steering wheel movement according to an operation of a driver and senses a direction of the tire accordingly;
A sensor unit 200 for recognizing a lane by measuring a change in reflectance of a lane;
It is possible to determine whether or not the driver is in a drowsy state by using the ultrasonic array sensor and the camera sensor attached to the driver's seat ceiling. If the driver is not drowsy, information about the tire direction sensed through the inertia measurement unit 100, A determination unit (300) for determining whether there is an intention to change lanes based on a change value of the reflectance measured through the lane changing unit (200); And
If it is determined that there is an intention to change lanes through the determination unit 300, the direction indicator in the corresponding direction is turned on. If the change in the tire direction detected through the inertia measurement unit 100 is less than the set range, A turn signal lamp management unit 400 for determining that the lane change is in progress and turning off the turn signal lamp; / RTI >
The controller 300 controls the driver to display a warning on the audiovisual display when the driver is in the drowsy state and controls the driver to tactically display the warning through the steering wheel or the steering wheel. Control system.
The method according to claim 1,
The inertia measuring unit (100)
And an inertial measurement unit (IMU) mounted on the steering wheel, wherein the inclination degree of the vehicle is measured.
The method according to claim 1,
The sensor unit (200)
Wherein the control unit is an infrared sensor located in a side mirror of the vehicle.
The method according to claim 1 or 3,
The sensor unit (200)
Wherein a lane is recognized by measuring changes in reflectance along a black road, a white lane, and a yellow center line.
delete The method according to claim 1,
A tire direction control unit 500 for controlling the direction of the tire to coincide with the reference line; Further comprising a control unit for controlling the turning direction of the tire.
The method according to claim 6,
The tire direction controller (500)
When the engine stop signal is transmitted, it is determined whether or not the direction of the tire matches the reference line based on the tire direction information sensed by the inertia measurement unit 100. If the direction of the tire matches the reference line, Wherein the control unit is configured to control the turning direction of the tire according to the detected direction of the tire.
The method according to claim 1,
All information measured or generated through the inertial measurement unit 100, the sensor unit 200, the determination unit 300, the turn signal lamp management unit 400, and the tire direction control unit 500 is transmitted to an instrument cluster An information output unit 600 for displaying the information in real time in an audiovisual manner; Further comprising a control unit for controlling the turning direction of the tire.
A method of controlling a turn signal light according to a direction of a tire that displays all information measured or generated in real time in an audiovisual and tactile manner in cooperation with an instrument cluster of a vehicle,
(a) measuring the amount of change of the steering wheel movement according to an operation of the driver and measuring the direction of the tire according to the operation of the inertial measurement unit 100;
(b) the sensor unit 200 recognizes the lane by measuring a change in the reflectance of the lane;
(c) determining whether the driver is in a drowsy state using the ultrasonic array sensor and the camera sensor attached to the driver's seat ceiling;
(d) if it is determined that the drowsy state is not satisfied, the determining unit 300 determines whether the information about the tire direction sensed through the step (a) and the reflectance measured through the step (b) Determining whether there is an intention to change lanes based on the change value of the lane change;
(e) if it is determined in step (d) that the lane-changing intention is determined, the turn signal managing part 400 turns on the turn signal in the corresponding direction;
(f) determining whether the change of the tire direction sensed through the step (a) is below the set range; And
(g) when the change in the tire direction is equal to or less than the set range as a result of the determination in the step (f), the turn signal lamp management unit 400 determines that the lane change is completed and the lane change has been completed and turns off the turn signal lamp; , ≪ / RTI &
(h) If the drowsy state is determined as a result of the determination in step (c), the controller 300 controls the information output unit 600 to visually display a warning to the driver, Performing a procedure to the step (a) after controlling the warning to be displayed in a tactile manner; The method of claim 1, further comprising the step of detecting the direction of the tire.
delete 10. The method of claim 9,
(i) when the turn indicator lamp management unit 400 determines that there is no intention to change lanes as a result of the determination in the step (d), performing the procedure to the step (a); The method of claim 1, further comprising the step of detecting the direction of the tire.
10. The method of claim 9,
(j) If it is determined in step (f) that the change in the tire direction exceeds the setting range, the turn signal lamp management unit 400 determines that the lane change has not been completed and performs the procedure in step (f) ; The method of claim 1, further comprising the step of detecting the direction of the tire.

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