KR101685538B1

KR101685538B1 - Apparatus and method for controlling electronic devices in vehicle

Info

Publication number: KR101685538B1
Application number: KR1020150136551A
Authority: KR
Inventors: 이재옥
Original assignee: 현대자동차주식회사
Priority date: 2015-09-25
Filing date: 2015-09-25
Publication date: 2016-12-12

Abstract

The present invention relates to an apparatus and a method for controlling an electronic device in a vehicle. The method for controlling an electronic device in a vehicle comprises: a step of setting a monitoring area on the basis of the speed and driving route of a vehicle; a step of calculating the first curvature of the monitoring area; a step of calculating the second curvature of a current driving position on the basis of the speed of the vehicle and the rotation angle of wheels; and a step of restricting the operation of an electronic device according to the comparison result of the first and second curvatures.

Description

TECHNICAL FIELD [0001] The present invention relates to an apparatus and a method for controlling an electronic device in a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for controlling an electronic device in a vehicle, and more particularly, to an apparatus and a method capable of limiting a driver (occupant) .

The automotive industry is undergoing a HMI (Human Machine Interface) innovation in which the way drivers and passengers interact with their cars is constantly changing. Human Machine Interfaces (HMIs) can traditionally include multiple systems that allow drivers to interact with their vehicles. In recent vehicle designs, HMIs allow the transmission of diverse feedback from the vehicle's interior to the driver. This interaction starts from the moment the car door is opened and continues during driving and ends when the driver closes the car out of the car. These interactions include the optimal balance of the driver's sensory input to make driving experience safe and enjoyable.

The user (driver) and the human interaction (HVI) are also related to user safety. In order to increase the satisfaction of the user, the vehicle may include a lot of functions and various services, which may seriously affect the safety of the user while driving. Driver inattention can be one of the most important causes of traffic accidents. For example, it is known that a large part of accidents caused by carelessness related to vehicle accidents are caused by the neglect of forward gaze that occurs in the process of controlling and watching the dashboard such as navigation, audio, and the like.

In recent years, some regions (for example, in North America) have also seen moves to legislate driving regulatory guides. However, many drivers feel the need to operate audio, video, and AVN systems while driving. Excessively limiting the operation (input) of the driver (user) due to safety while emphasizing driving can be a serious obstacle to system usability.

KR 10-1312634 B1

The present invention can provide an apparatus and a method for actively limiting an input of a user (driver) for controlling an electronic device mounted on a vehicle according to a driving environment.

The present invention also relates to a device for preventing travel of a user (driver) by limiting the operation of the electronic device in a driving condition in which a substantial risk of a user (driver) is expected by using map information and a sensor mounted on the vehicle, And methods.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

A method for controlling an in-vehicle electronic device according to an embodiment of the present invention includes: setting a monitoring zone based on a speed and a traveling route of the vehicle; Calculating a first curvature of the surveillance zone; Calculating a second curvature of the current driving position based on the speed and the steering wheel rotation angle; And limiting the operation of the electronic device according to a result of the comparison of the first curvature and the second curvature.

The setting of the monitoring zone may include setting a monitoring zone starting point on the driving route based on the speed of the vehicle and the operation average time; And setting at least three coordinates spaced apart from the starting point of the monitoring zone by a predetermined distance.

In addition, the operation average time may include a time for the driver to take a sight line on the screen in the dashboard for operating the electronic device, and a time required for the driver to operate the steering wheel.

In addition, the operation average time is 2 to 3 seconds, and the monitoring zone starting point may be located at a distance from the current driving position by multiplying the speed of the vehicle by the operation average time.

In addition, the operation average time is a default value and can be changed by the driver.

The step of calculating the first curvature of the monitoring zone may include calculating the curvature of each of the plurality of zones by dividing the monitoring zone starting point into a plurality of intervals defined by the plurality of coordinates.

In addition, limiting the operation of the electronic device may include comparing the respective curvatures to a second curvature.

Also, the step of restricting the operation of the electronic device may include checking whether the first curvature and the second curvature are different from each other by more than a specific range; And limiting the operation of the electronic device in the current driving position if there is a difference of more than the specific range.

In addition, the method for controlling the in-vehicle electronic device may further include canceling the operation restriction of the electronic device when the vehicle is out of the surveillance zone.

In addition, the electronic device may include an audio, video, and AVN (Audio Video Navigation) system.

An apparatus for controlling an in-vehicle electronic device according to another embodiment of the present invention includes an electronic device including an audio, video, audio video navigation (AVN) system, And a control unit for limiting the operation of the electronic device by comparing the results of the curvature calculation unit and the curvature calculation unit for calculating the curvature of the monitoring area and the current driving position.

The monitoring area determining unit may set at least three coordinates that are spaced apart from the starting point of the monitoring area by a predetermined distance after setting the monitoring area starting point on the traveling path based on the speed of the vehicle and the operation average time.

The curvature calculator may calculate the curvature by dividing the surveillance zone starting point into a plurality of intervals defined by the plurality of coordinates, and the controller may compare curvatures of the respective curvatures with the curvature of the current driving position.

The curvature calculation unit may calculate the curvature of the current driving position based on the vehicle speed and the steering wheel rotation angle.

The control unit may limit the operation of the electronic device at the current driving position if the curvature of the monitoring area and the curvature of the current driving position are different from each other by more than a specific range.

In addition, the control unit may cancel the operation restriction of the electronic device when the user exits the monitoring area.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And can be understood and understood.

The effect of the device according to the present invention will be described as follows.

The present invention is based on the premise that the operation of the electronic device during driving is uniformly limited, but the user (driver) who is driving in a safe driving environment may feel inconvenience in using the electronic device, but only audio, video, navigation Video Navigation (AVN) system can be prevented, thereby reducing usability of the user (driver)

In addition, the present invention can prevent an accident by reducing the risk of a user (a driver) operating audio, video, and AVN systems while driving.

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

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. It is to be understood, however, that the technical features of the present invention are not limited to the specific drawings, and the features disclosed in the drawings may be combined with each other to constitute a new embodiment.
Figure 1 illustrates a method for controlling an in-vehicle electronic device.
2 illustrates an example of a method for controlling an in-vehicle electronic device.
3 illustrates an apparatus for controlling an in-vehicle electronic device.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus and various methods to which embodiments of the present invention are applied will be described in detail with reference to the drawings. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

In the description of the embodiments, when it is described as being formed on the "upper" or "lower" of each element, the upper or lower (lower) And that at least one further component is formed and arranged between the two components. Also, the expression "upward" or "downward" may include not only an upward direction but also a downward direction with respect to one component.

Figure 1 illustrates a method for controlling an in-vehicle electronic device.

As shown, a method for controlling an in-vehicle electronic device includes the steps of setting a monitoring zone 10 based on the speed and travel path of the vehicle, calculating a first curvature of the monitoring zone 12, Calculating (14) a second curvature of the current driving position based on the wheel rotational angle, and (16) limiting the operation of the electronic device according to the result of the comparison of the first curvature and the second curvature . At this time, the electronic device that can restrict the operation of the user (driver) during driving may include audio, video, AVN (Audio Video Navigation) system.

The step of setting the monitoring area 10 includes the steps of setting a monitoring zone starting point on the traveling route based on the speed of the vehicle and the operation average time and setting at least three coordinates spaced apart from the monitoring zone starting point Step < / RTI > Here, the operation average time may include a time for the driver to take a sight line on the screen in the dashboard for operating the electronic device, and a time required for the driver to operate the steering wheel.

For example, the average operation time may be 2 to 3 seconds. In this case, the monitoring zone starting point may be located at a distance from the current driving position by multiplying the speed of the vehicle by the operation average time. This operation average time may be a default value and may be set by the user (driver) to be changed.

The step 12 of calculating the first curvature of the surveillance zone may include dividing the surveillance zone starting point into a plurality of segments set to a plurality of coordinates and calculating respective curvatures. By dividing the surveillance zone into a plurality of sections and calculating the curvature in the traveling path more accurately, it can be confirmed whether the driver (user) can be in a real dangerous situation.

Based on the current speed of the vehicle and the current steering wheel rotation angle, a second curvature of the current driving position can be calculated (14). For example, the current speed of the vehicle can be collected in a vehicle using a wheel pulse signal or a GPS device, and the steering wheel rotation angle can be collected using a sensor that senses the steering wheel's rotation angle. The curvature of the angular velocity and the current position can be obtained by using the rotation angle and velocity of the curve motion of the vehicle at the current position.

The step 16 of limiting the operation of the electronic device may include comparing the curvature of each section in the set monitoring area with a second curvature which is the curvature at the current position.

In addition, the step of limiting the operation of the electronic device (16) comprises the steps of: confirming whether the first curvature and the second curvature differ by not less than a specific range, and restricting the operation of the electronic device in the present driving position . &Lt; / RTI > Here, the specific range can be determined according to the actual danger level of the user (driver), for example, 1.2 times, 1.5 times, or 2 times the curvature at the current position.

On the other hand, a method of controlling an in-vehicle electronic device may further include a step 18 of canceling the operation restriction of the electronic device when the vehicle is out of the surveillance zone.

Through the above-described method, input (manipulation) of an audio, video, and navigation (AVN) system mounted on the vehicle can be actively limited according to the driving environment. A number of sensors in recent vehicles are detecting perceived risk early, and this information can be used to limit the input (manipulation) of audio, video and navigation (AVN) systems to conditions that are at substantial risk.

In addition, it is possible to selectively restrict the function of the user (driver) in the audio, video, navigation (AVN) system for the function requiring complex operation. It is possible to selectively restrict complex functions in the input / manipulation process in consideration of whether the input / manipulation process of the user (driver) is configured in multiple stages in the process of developing audio, video, and navigation (AVN) systems. Also, step-by-step limitations of the input / manipulation process are possible. This limited function can be performed by automatically shutting off the screen (screen) when a monitoring area determined according to the actual danger level of the user (driver) is recognized.

On the other hand, an Advanced Driver Assistance System (ADAS) using an electronic map and navigation can be used for controlling the in-vehicle electronic device. For example, the electronic map and navigation used in the Intelligent Driver Assistance System (ADAS) can be used to set up the surveillance zone and collect information about the vehicle speed and steering wheel rotation angle through various sensors.

2 illustrates an example of a method for controlling an in-vehicle electronic device.

As shown, the vehicle may be traveling at its current location 22 on the road 20.

First, in order to control the in-vehicle electronic device, the starting point 24 of the surveillance zone can be set. The operating average time can be determined to determine the starting point of the surveillance zone. The operation average time may include a time (Tm) during which the user fixes the line of sight to the monitor screen for a specific input operation and an operation reaction time (Tr) in which the driver (user) reacts biologically to the steering wheel operation.

Assuming that the user (driver) inputs the destination to the navigation device, the user watches the monitor screen and watches the destination input screen again to watch the destination screen, and then repeatedly performs the forward viewing operation to operate the navigation device (destination input operation) something to do. In this situation, it is possible to determine a time (Tm) for fixing the sight line on the monitor screen, that is, an average value of the time when the driver loses sight of the screen for a while, that is, the time when the vehicle is driven without looking ahead. For example, it may be about 2 to 3 seconds.

When the time Tm for fixing the line of sight to the monitor screen is determined, the distance Db at which the vehicle can be operated without the driver looking forward can be calculated by multiplying the current speed V of the vehicle by the time (V x Tm) that is obtained by multiplying Tm by Tm. Here, multiplying the manipulation reaction time Tr in which the driver is biologically reacting with the manipulation of the steering wheel by the current velocity V of the vehicle, the driver can determine the distance (Tr x V) necessary for normally operating the steering wheel . Adding the above two distances can determine the minimum distance (Lv > Db + (Tr x V)) between the current position 22 of the vehicle and the starting point 24 of the surveillance zone. The minimum distance Lv may serve as a safety distance to limit the operation of the electronic device in the vehicle at the current position 22 if the starting point 24 of the monitored area is determined to be actually dangerous to the driver have.

A plurality of coordinates 26_1, 26_2, and 26_3 on the vehicle traveling path 20 can be extracted to determine the curvature C1 of the road on the route in order to set the monitoring area. At this time, the number N of extracted coordinates may be at least three points in consideration of the computing performance of the system. The distance Ld between the start point 24 of the surveillance zone and the plurality of coordinates 26_1, 26_2 and 26_3 can be variably set in accordance with the running speed V of the vehicle.

As shown, a virtual circle having a radius R1 can be predicted by using the start point 24 of the surveillance zone and the plurality of coordinates 26_1, 26_2, and 26_3. The radius (R1) can be used to calculate the curvature (C1) of the surveillance zone. In addition, it is also possible to calculate the individual curvature according to each section between the start point 24 of the surveillance zone and the plurality of coordinates 26_1, 26_2, and 26_3 in consideration of the computing performance of the system.

Calculates the curvature C2 of the current position 22 where the vehicle is running on the basis of the wheel rotation angle of the vehicle and the current vehicle speed V at the current position 22 to predict the actual danger of the surveillance zone. Using the rotational angle and speed of the curve motion of the vehicle at the current position 22, the curvature C2 of an imaginary circle having an angular velocity and a radius R2 can be found.

To determine the actual hazard of the surveillance area, the curvature (C1) of the surveillance area and the curvature (C2) of the current location can be compared. If the difference between the curvature (C2) of the current position (travel point) and the curvature (C1) of the surveillance zone after the minimum distance (Lv) exceeds a certain range, if the driver can not look ahead to manipulate the electronic device It can be judged as a dangerous area which can be exposed to danger. The vehicle continuously performs the determination of the dangerous area while driving and can restrict the operation of the electronic device when it is judged to be a dangerous area.

3 illustrates an apparatus for controlling an in-vehicle electronic device.

As shown, an apparatus 40 for controlling an in-vehicle electronic device in conjunction with an electronic device 30 including an audio, video, and audio video navigation (AVN) system, A control section 46 for limiting the operation of the electronic device by comparing the results of the curvature calculation section 44 with the monitoring area and the curvature calculation section 44 for calculating the curvature of the current driving position, ).

The monitoring area determining unit 42 may set at least three coordinates that are spaced apart from the starting point of the monitoring area by a predetermined distance after setting the monitoring area starting point on the traveling route based on the vehicle speed and the operation average time.

In this case, the operation average time may include a time for the driver to take a sight line on the screen in the dashboard for operating the electronic device, and a time required for the driver to operate the steering wheel. For example, the average operation time is 2 to 3 seconds, and the monitoring zone starting point may be located at a distance from the current driving position to the vehicle speed multiplied by the operation average time.

For example, the curvature calculator 44 may calculate the curvature of each of the plurality of sections by dividing the surveillance section starting point into a plurality of sections defined by a plurality of coordinates, and the control section 46 compares the curvatures of the respective curvatures with the curvature . Further, the curvature calculation unit 44 may calculate the curvature of the current driving position based on the vehicle speed and the steering wheel rotation angle.

The control unit 46 can limit the operation of the electronic device at the current driving position if the curvature of the monitoring area and the curvature of the current driving position are different from each other by more than a specific range. In addition, the control unit 46 can cancel the operation restriction of the electronic device when the vehicle is out of the surveillance zone.

The method according to the above-described embodiments may be implemented as a program to be executed by a computer and stored in a computer-readable recording medium. Examples of the computer-readable recording medium include a ROM, a RAM, a CD- , A floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet).

The computer readable recording medium may be distributed over a networked computer system so that computer readable code can be stored and executed in a distributed manner. And, functional program, code, and code segments for implementing the above-described method can be easily inferred by programmers in the technical field to which the embodiment belongs.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Accordingly, the above description should not be construed in a limiting sense in all respects and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

20: Travel route 22: Present location
24: Starting point of detection zone 26_1, 26_2, 26_3: coordinate
30: Electronic device 32: Audio device
34: Video device 36: Navigation
40: Device for controlling electronic devices in a vehicle
42: Monitoring area determining unit 44: Curvature calculating unit
46:

Claims

A monitoring area is set based on the operation average time including the time taken for the driver to take a sight line on the screen in the dashboard for operating the electronic device and the time required for the driver to operate the steering wheel, ;
Calculating a first curvature of the surveillance zone;
Calculating a second curvature of the current driving position based on the speed and the steering wheel rotation angle; And
Limiting the operation of the electronic device according to a result of comparison between the first curvature and the second curvature
&Lt; / RTI >

The method according to claim 1,
The step of establishing the monitoring zone
Setting a monitoring zone starting point on the traveling route based on the speed of the vehicle and the operation average time; And
Setting at least three coordinates spaced apart from the starting point of the monitoring zone by a predetermined interval
&Lt; / RTI >

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3. The method of claim 2,
Wherein the operating average time is from 2 to 3 seconds and the monitoring zone starting point is located at a distance from the current driving position to the speed of the vehicle multiplied by the operational average time.

3. The method of claim 2,
Wherein the operation average time is a default value and the driver can change the method.

3. The method of claim 2,
The step of calculating the first curvature of the monitoring zone
Calculating a curvature of each surveillance zone by dividing the surveillance zone starting point into a plurality of intervals defined by the plurality of coordinates,
&Lt; / RTI >

The method according to claim 6,
The step of limiting the operation of the electronic device
Comparing each of the curvatures to a second curvature
&Lt; / RTI >

The method according to claim 1,
The step of limiting the operation of the electronic device
Determining whether the first curvature and the second curvature differ by more than a specific range; And
Limiting the operation of the electronic device in the current driving position if there is a difference of more than the specific range;
&Lt; / RTI >

The method according to claim 1,
Closing the operation restriction of the electronic device when the vehicle is out of the surveillance zone
&Lt; / RTI >

The method according to claim 1,
Wherein the electronic device comprises an audio, video, and audio video navigation (AVN) system.

A method of controlling an in-vehicle electronic device according to any one of claims 1, 2, and 4 to 10, comprising executing an application program A computer readable recording medium.

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An apparatus for interfacing with an electronic device including an audio, video, and AVN system,
A monitoring area based on the operation average time, the speed of the vehicle, and the travel route including the time for the driver to take a sight line on the screen in the dashboard for the operation of the electronic device and the time required for the driver to operate the steering wheel A monitoring area determining unit for setting the monitoring area;
A curvature calculator for calculating a curvature of the monitoring area and a current driving position; And
And a controller for comparing the results of the curvature calculator to limit the operation of the electronic device
And a control unit for controlling the electronic device.

14. The method of claim 13,
Wherein the monitoring area determination unit sets at least three coordinates that are spaced apart from the starting point of the monitoring zone by a predetermined interval after setting a monitoring zone starting point on the traveling path based on the speed of the vehicle and the operation average time, A device for controlling a device.

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15. The method of claim 14,
Wherein the operation average time is from 2 to 3 seconds and the monitoring zone starting point is located at a distance from the current driving position by multiplying the speed of the vehicle by the operation average time.

15. The method of claim 14,
Wherein the curvature calculation unit calculates respective curvatures by dividing the surveillance zone starting point into a plurality of intervals defined by the plurality of coordinates and the control unit compares the curvatures of the respective curvatures with the curvature of the current driving position Controlling device.

14. The method of claim 13,
Wherein the curvature calculation unit calculates the curvature of the current driving position based on the speed of the vehicle and the steering wheel rotation angle.

14. The method of claim 13,
Wherein the control unit limits the operation of the electronic device in the current driving position if the curvature of the monitoring area and the curvature of the current driving position differ by more than a specific range.

14. The method of claim 13,
Wherein the control unit terminates the operation restriction of the electronic device when the electronic apparatus is out of the monitoring zone.