KR20230114774A - CONTENTS linkage system for autonomous vehicles - Google Patents

Abstract

An object of the present invention is to provide a content switching system for an autonomous vehicle that provides convenience and a new user experience by allowing the content to be immediately played in the autonomous vehicle when viewing content and then boarding the autonomous vehicle.
Thus, a content switching system for an autonomous vehicle according to an aspect of the present invention includes a user terminal from which content is output or can be output, and an autonomous vehicle that standbys to output the content when the user terminal approaches.

Description

CONTENTS linkage system for autonomous vehicles}

The present invention relates to a content switching system, and more particularly, to a content switching system for an autonomous vehicle.

Vehicles may be classified into internal combustion engine vehicles, external combustion engine vehicles, gas turbine vehicles, electric vehicles, and the like, depending on the type of prime mover used.

Autonomous vehicles are vehicles that can drive automatically without human intervention. Driverless cars drive autonomously by recognizing the surrounding environment with radar, LIDAR (light detection and ranging), GPS, and camera and designating a destination. Unmanned vehicles that are already in practical use include unmanned vehicles operated by the Israeli military that patrol preset routes and unmanned operation systems such as dump trucks that are operated at overseas mines or construction sites.

The first core technologies of these self-driving vehicles are the unmanned car system and the actual system. It is a technology that builds an unmanned car system in reality as well as simulation in the laboratory. It implements driving devices such as accelerators, decelerators, and steering devices to suit unmanned operation, and enables control using computers, software, and hardware installed in unmanned cars. do.

The second key technology is to receive and process visual information using vision and sensors. It is the basis of autonomous driving for unmanned operation, and it is a technology that accepts image information and extracts necessary information from the image. This uses not only a CCD (charge-coupled device) camera, but also sensors such as ultrasonic sensors and range filters to fuse information necessary for distance and driving, allowing obstacle avoidance and unexpected situations to be dealt with through analysis and processing.

The third core technology is the integrated control system and operation monitoring fault diagnosis system technology. This technology establishes an operation monitoring system that monitors vehicle operation and gives appropriate commands according to frequently changing situations, analyzes various situations generated by individual processors and sensors, diagnoses system failures, and provides appropriate information to the operator. or to perform the function of notifying an alarm.

The fourth key technology is intelligent control and intelligent driving devices. This technology generates control commands based on mathematical analysis using actual vehicle models as an unmanned driving technique. Intelligent forward control is a system based on radar guide technology that maintains the distance from the vehicle in front or obstacles by adjusting the speed on its own without the driver manipulating the pedals. When the driver inputs the distance to the vehicle in front, the long-range radar attached to the front of the vehicle detects the location of the vehicle in front, maintains a constant speed, decelerates or accelerates, and comes to a complete stop if necessary, which is useful in poor visibility weather.

The fifth applied technology is the lane departure prevention system. This is a technology in which a camera installed inside detects the lane and informs the driver of an unintended deviation situation.

The sixth applied technology is a parking assist system. When the driver searches for the assist button, puts the reverse gear in and presses the brake pedal, the car adjusts the steering to assist in parallel parking in reverse. It automatically guides the vehicle from the starting point to the parking space based on infrastructure as well as vehicle-mounted sensors to save unnecessary time and energy when parking, thereby minimizing cost and environmental pollution.

The seventh applied technology is an automatic parking system. This is a technology in which the driver stops the car in front of the parking lot, turns off the engine, gets off, and presses the remote control lock switch twice in a row. am.

The eighth applied technology is a blind spot information guidance system. Sensors mounted on both sides of the car determine if there is another vehicle in the blind spot that is not visible through the side mirror and warn the driver. .

The biggest advantage of autonomous driving is that driving speed and traffic management data match, so it helps fuel efficiency by avoiding repeated stops by adjusting the control device more evenly, and that it can be used by people who cannot drive, such as the elderly, children, and the disabled. will be. In addition, it has the advantage of solving fatigue caused by long-time driving, greatly reducing the risk of traffic accidents, speeding up traffic flow on the road and reducing traffic congestion.

Furthermore, in the case of using an autonomous vehicle, there is no need to drive, so leisure time is secured and various user experiences can be derived. More specifically, since they do not drive, they are likely to be exposed to various multimedia environments. However, only basic scenarios have been explored for various user experiences in the case of using an autonomous vehicle.

Korea Patent No. 10-2184598 (2020. 12. 3.), Driving Prediction and Safety Driving System Based on Judgment of Driver Emergency Situation of Autonomous Driving Vehicle}

The present invention is to solve the above problems of the prior art, and an object of the present invention is to provide convenience and a new user experience by immediately playing the content in an autonomous vehicle when boarding an autonomous vehicle while watching content. It is to provide a content conversion system for autonomous vehicles that provides

A content switching system for an autonomous vehicle according to an aspect of the present invention includes a user terminal from which content is output or can be output, and an autonomous vehicle that standbys to output the content when the user terminal approaches.

In this case, when the user terminal approaches the self-driving vehicle and the vehicle door is opened, continuous output of the contents may be started in the self-driving vehicle.

In addition, when the vehicle door is closed and the user is not detected inside the vehicle, the output of the content may be stopped.

In addition, when the self-driving vehicle stands by for content output, it may output a sign indicating the content.

In addition, when the user terminal approaches the self-driving vehicle within a set distance, the self-driving vehicle may receive media played in the user terminal from the server.

The present invention provides a new user experience that allows content to be viewed more comfortably while driving because the content is immediately played in the self-driving vehicle when the user boards the autonomous vehicle while watching the content.

1 is a configuration diagram of a content switching system for an autonomous vehicle according to an embodiment of the present invention.
FIG. 2 is a configuration diagram showing the self-driving vehicle in FIG. 1 in more detail.
FIG. 3 is a configuration diagram showing the sensing unit in FIG. 2 in more detail.
4 is a configuration diagram showing the output unit in FIG. 2 in more detail.
5 is a configuration diagram showing the control unit in FIG. 2 in more detail.
6 to 12 are diagrams illustrating an operation of a content switching system for an autonomous vehicle according to an embodiment of the present invention.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar components are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted.

The suffixes "module" and "unit" for components used in the following description are given or used together in consideration of ease of writing the specification, and do not have meanings or roles that are distinct from each other by themselves.

In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted.

In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, the technical idea disclosed in this specification is not limited by the accompanying drawings, and all changes included in the spirit and technical scope of the present invention , it should be understood to include equivalents or substitutes.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as "comprise" or "have" are intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Hereinafter, a content switching system for an autonomous vehicle according to an embodiment of the present invention will be described. 1 is a configuration diagram of a content switching system for an autonomous vehicle according to an embodiment of the present invention, FIG. 2 is a configuration diagram showing the autonomous vehicle in FIG. 1 in more detail, and FIG. 3 is a configuration diagram in FIG. A configuration diagram showing the sensing unit in more detail, FIG. 4 is a configuration diagram showing the output unit in FIG. 2 in more detail, FIG. 5 is a configuration diagram showing the control unit in FIG. 2 in more detail, and FIGS. 6 to 12 is a diagram illustrating an operation of a content switching system for an autonomous vehicle according to an embodiment of the present invention.

Referring to the drawings, first of all, the self-driving content conversion system 1000 according to an embodiment of the present invention includes an autonomous vehicle 100, a server 200 storing multimedia content, and a user to whom content is output or can be output. It is made including the terminal 300. In the self-driving content switching system 1000 according to this embodiment, the content watched on either the user terminal 300 or the self-driving vehicle 100 can be made by changing the output subject without interruption according to the user's getting on or off. there is.

In this case, the autonomous vehicle 100 includes an input unit 110, a sensing unit 120, an output unit 130, a control unit 140, a communication unit 150, and a driving unit 160.

The input unit 110 is a device that receives a user input for driving. In case of manual mode, the input unit 110 of the autonomous vehicle 100 may include a steering input device, an acceleration input device, and a brake input device. In addition, the input unit 110 serves to input the destination of the self-driving vehicle, and the control unit 140 controls driving or receives information from the server 200 according to the input destination and continuously sets a route.

In addition, in this embodiment, the input unit 110 also serves to receive multimedia contents in the vehicle. These contents are stored in the server 200 or a storage unit (not shown), and the input unit 110 plays a role in selecting which contents to load.

On the other hand, when the user terminal 300 approaches the self-driving vehicle within a set distance for vehicle boarding, etc., the communication unit 150 can receive information on the content output from the user terminal 300, and the control unit 140 ) If this content is not stored in the vehicle, the server 200 is requested to receive the content for playback in the vehicle 100, and the content played in the user terminal 300 is simultaneously loaded into the vehicle 100 (or when the vehicle door is opened) to enable playback in the vehicle.

The detector 120 may include a radar 121 and a lidar 122, and may further include a camera 123. First, the radar 121 may generate information about an object outside the self-driving vehicle 100 by using radio waves. The radar 121 may include an electromagnetic wave transmitter, an electromagnetic wave receiver, and at least one processor electrically connected to the electromagnetic wave transmitter and electromagnetic wave receiver, processing a received signal, and generating data about an object based on the processed signal. there is.

The radar 121 may be implemented in a pulse radar method or a continuous wave radar method in terms of radio wave emission principles. The radar 121 may be implemented in a frequency modulated continuous wave (FMCW) method or a frequency shift keyong (FSK) method according to a signal waveform among continuous wave radar methods. The radar 121 detects an object based on a Time of Flight (TOF) method or a phase-shift method through electromagnetic waves, and measures the position of the detected object, the distance to the detected object, and the relative speed. can be detected. In this case, the radar 121 may be disposed at an appropriate location outside the vehicle to detect an object located in front, rear or side of the vehicle.

The lidar 122 may generate information about an object outside the self-driving vehicle 100 by using laser light. The LIDAR 122 is electrically connected to the light transmitter (not shown), the light receiver (not shown), and the light transmitter and the light receiver, processes the received signal, and generates data for an object based on the processed signal. It may include at least one processor that

The lidar 122 may be implemented in a Time of Flight (TOF) method or a phase-shift method. The lidar 122 may be implemented as a driven or non-driven type. When implemented as a driven type, the lidar 122 is rotated by a motor and may detect objects around the autonomous vehicle 100. When implemented as a non-driving type, the lidar 122 may detect an object located within a predetermined range with respect to the vehicle by light steering. The autonomous vehicle 100 may include a plurality of non-driven lidars. The lidar 122 detects an object based on a time of flight (TOF) method or a phase-shift method using a laser light medium, and calculates the position of the detected object, the distance to the detected object, and the relative speed. can be detected. At this time, the lidar 122 may be disposed at an appropriate location outside the vehicle to detect an object located in the front, rear, or side of the vehicle.

Meanwhile, the camera 123 may generate information about an object outside the self-driving vehicle 100 by using an image. At this time, the camera 123 may capture an image of a target outside the vehicle.

The camera 123 may include at least one lens, at least one image sensor, and at least one processor electrically connected to the image sensor to process a received signal and to generate object data based on the processed signal. can

The camera 123 may be at least one of a mono camera, a stereo camera, and an AVM (Around View Monitoring) camera. The camera 123 may obtain position information of an object, distance information to the object, relative speed information to the object, and motion information of the object by using various image processing algorithms.

For example, the camera 123 may obtain distance information and relative speed information with respect to the object based on a change in the size of the object over time in the obtained image. In addition, the camera 123 may obtain distance information and relative speed information with an object through a pinhole model, road profiling, and the like.

In addition, the camera 123 may obtain basic information about motion, such as distance information to an object, relative speed information, and other people's hand gestures, based on disparity information from a stereo image obtained from a stereo camera. there is.

The camera 123 may be mounted in a position where a field of view (FOV) can be secured in the vehicle in order to photograph the exterior of the vehicle. The camera 123 may be disposed close to the front windshield inside the vehicle to obtain an image of the front of the vehicle. Furthermore, the camera 123 may be disposed around a front bumper or a radiator grill. The camera 123 may be disposed close to the rear glass inside the vehicle to obtain an image behind the vehicle. In this case, the camera 123 may be disposed around a rear bumper, a trunk, or a tailgate. The camera 123 may be disposed close to at least one of the side windows in the interior of the vehicle in order to acquire an image of the side of the vehicle. Alternatively, the camera 123 may be disposed around side mirrors, fenders, or doors.

In addition, since the sensing unit 120 needs to utilize the location information of the self-driving vehicle, the GPS 124 is essentially further included. In addition, the GPS 124 may include at least one of a general GPS (Global Positioning System) and DGPS (Differential Global Positioning System) to generate location data of the autonomous vehicle 100 . Location data of the self-driving vehicle 100 may be generated based on a signal generated by at least one of the GPS and DGPS.

In this case, the GPS 124 may correct the location data based on at least one of an Inertial Measurement Unit (IMU) and the camera 123 of the sensing unit 120 . Also, the GPS 124 may be referred to as a Global Navigation Satellite System (GNSS).

Meanwhile, the sensing unit 120 may further include a microphone 125 so that the occupant, in addition to the guardian, may intervene in autonomous driving by voice or the like even if the occupant does not perform a steering operation.

The biometric information sensor 126 senses a passenger's heartbeat, blood pressure, brain wave, etc. to promote safety of the passenger. Meanwhile, the biometric information sensor 126 may additionally perform a function of preventing erroneous boarding by sensing fingerprint and iris information when entering and exiting a vehicle. Utilizing the biometric information sensor 126, the self-driving vehicle 100 can detect that a passenger has boarded or alighted.

In this embodiment, when a user possessing the user terminal 300 approaches the vehicle 100 with the user terminal 300, the content output is standby. When the door of the vehicle is opened, the user terminal 300 ) may start to be reproduced in the vehicle 100 . However, when the user closes the door of the vehicle 100 without boarding, the output of such content may be stopped.

The output unit 130 includes a content output module 131 for reproducing content output from the user terminal 300, a content information output module 132 for outputting information on content output from the user terminal 300, and a user's It includes a user guide module 133 that informs boarding or approaching.

At this time, the content information output module 132 may serve to output content information or related advertisements output from the user terminal 300 to the inside or outside of the vehicle. In addition, the user guide module 133 may output a sign indicating that content played in the user terminal 133 can be reproduced to the outside of the vehicle when the user or the user terminal approaches the vehicle 100 . Here, the user guide module 133 preferably outputs a specific image, color, or sound to have an intuitive recognition by displaying it on the outside of the vehicle.

Meanwhile, the controller 140 includes a drive control module 141 and an input/output control module 142. First, the driving control module 141 may be configured as a main ECU and controls the driving unit 160 of the self-driving vehicle 100 . In this case, the drive control module 141 may include a power train drive control device, a chassis drive control device, a door/window drive control device, a safety device drive control device, a lamp drive control device, and an air conditioning drive control device. The power train driving control device may include a power source driving control device and a transmission driving control device. The chassis drive control device may include a steering drive control device, a brake drive control device, and a suspension drive control device. Meanwhile, the safety device driving control device may include a seat belt driving control device for controlling seat belts.

In addition, the drive control module 141 includes at least one electronic control device (eg, a control ECU (Electronic Control Unit)). In particular, the vehicle driving device may be controlled based on the received signal. For example, the driving control module 141 may control a power train, a steering device, and a brake device based on a signal received from the sensing unit 120 .

The input/output control module 142 controls the aforementioned output unit 130. First, when approaching within a set distance of the user terminal 300 from the communication unit 150 is detected, the output of content is once standby. In this case, the input/output control module 142 may receive the content being reproduced in the user terminal 300 from the server 200 in the case of content that is not stored.

Furthermore, when the user terminal 300 approaches the self-driving vehicle 100 and the vehicle door is opened, the input/output control module 142 outputs the output unit 130 so that the continuous output of the contents starts in the self-driving vehicle. You can control it.

In addition, the input/output control module 142 may output a sign indicating the content to the outside of the vehicle when content output is standby according to the approach of the user terminal.

The communication unit 150 may exchange signals with at least one of the server 200 located outside the self-driving vehicle 100, another vehicle, and the user terminal 300. Accordingly, the communication unit 150 may receive information such as the degree of proximity of the user terminal 300 and contents of content reproduced in the user terminal.

To this end, the communication unit 150 may include at least one of a transmission antenna, a reception antenna, a radio frequency (RF) circuit capable of implementing various communication protocols, and an RF element to perform communication.

For example, the communication device may exchange signals with an external device based on C-V2X (Cellular V2X) technology. In addition, the communication unit 150 transmits external devices and signals based on Dedicated Short Range Communications (DSRC) technology based on IEEE 802.11p PHY/MAC layer technology and IEEE 1609 Network/Transport layer technology or Wireless Access in Vehicular Environment (WAVE) standard. can be exchanged.

The operation of the present invention is exemplified below. 6 to 12 are diagrams illustrating an operation of a content switching system for an autonomous vehicle according to an embodiment of the present invention.

First, as shown in FIG. 6, information about a vehicle owned by a person is registered in a mobile device, and security authentication between a user terminal and a vehicle is performed by fingerprint recognition for authentication. Then, when the vehicle and the mobile device are interlocked, the vehicle recognizes the user terminal through a distance-based sensor.

Next, referring to FIGS. 7 and 8 , a driver approaches a vehicle while carrying a terminal playing content, and the user terminal updates and displays the distance between the driver and the vehicle in real time through communication with the vehicle. Referring to FIGS. 9 and 10 , when the driver enters within the range, the headlights and lower lights of the vehicle react and a content loading screen is displayed from the user terminal to the vehicle.

Next, referring to FIGS. 11 and 12 , after content synchronization is completed, a completion screen is output from the user terminal, and when the driver opens the vehicle door, the sound source output source is switched to the vehicle's internal speaker.

As such, those skilled in the art to which the present invention pertains will be able to understand that the present invention may be embodied in other specific forms without changing its technical spirit or essential features.

In addition, the present specification and drawings disclose preferred embodiments of the present invention, and although specific terms are used, they are only used in a general sense to easily explain the technical content of the present invention and help understanding of the present invention. It is not intended to limit the scope of the invention. It is obvious to those skilled in the art that other modified examples based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

1000: Content conversion system for autonomous vehicles
100: autonomous vehicle
110: input unit
120: sensing unit
130: output unit
140: control unit
150: communication department
160: driving unit
200: server
300: user terminal

Claims (5)

a user terminal on which content is output or can be output; and
an autonomous vehicle that standbys to output the content when the user terminal approaches;
A content switching system for an autonomous vehicle, comprising:
According to claim 1,
Content switching system for an autonomous vehicle, characterized in that when the user terminal approaches the autonomous vehicle and the vehicle door is opened, the continuous output of the content is started in the autonomous vehicle.
According to claim 2,
Content switching system for an autonomous vehicle, characterized in that the output of the content is stopped when the vehicle door is closed and the user is not detected inside the vehicle.
According to claim 1,
The self-driving vehicle's content switching system, characterized in that when the content output is standby, the self-driving vehicle outputs a sign to know the content.
According to claim 1,
Content switching system for an autonomous vehicle, characterized in that when the user terminal approaches the autonomous vehicle within a set distance, the self-driving vehicle receives the content played in the user terminal from the server.