KR102382113B1 - Accident infomation system for self driving cars - Google Patents

Abstract

According to the present invention, other indicators are displayed as an autonomous vehicle approaches an accident occurring in the front, thereby drawing attention of the user and promoting safe driving.
In one aspect of the present invention, an accident guidance system for an autonomous vehicle includes a plurality of autonomous vehicles and a control server communicating with the autonomous vehicle, wherein the control server includes a distance from an accident site when an autonomous vehicle accident occurs. transmit information to autonomous vehicles.

Description

Accident guidance system for autonomous vehicles {ACCIDENT INFOMATION SYSTEM FOR SELF DRIVING CARS}

The present invention relates to an accident guidance system, and more particularly, to an accident guidance system of an autonomous driving vehicle that intuitively guides an accident occurring in front of a road on which the autonomous driving vehicle travels.

An autonomous vehicle is a vehicle that can drive automatically without human driving. Autonomous vehicles drive autonomously by recognizing their surroundings using radar, light detection and ranging (LIDAR), GPS, and cameras and simply designating a destination. Autonomous vehicles that are already being put into practical use include unmanned vehicles that patrol preset routes operated by the Israeli military and unmanned driving systems such as dump trucks operated in overseas mines and construction sites.

The first core technologies of these autonomous vehicles are the autonomous vehicle system and the actual system. In addition to simulation in the laboratory, it is a technology that actually builds an autonomous vehicle system. It implements the accelerator, reducer, and steering system that are driving devices for unmanned operation, and controls it using the computer, software, and hardware installed in the autonomous vehicle. make it possible

The second core technology is to receive and process visual information using vision and sensors. As the basis of autonomous driving for unmanned operation, it is a technology that accepts image information and extracts necessary information from the image. It uses not only CCD (charge-coupled device) cameras but also ultrasonic sensors and range filters to fuse information necessary for distance and driving, so that it can avoid obstacles and cope with unexpected situations through analysis and processing.

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

The fourth core technology is intelligent control and intelligent operation devices. This technology is an unmanned driving technique that generates control commands based on mathematical analysis using real vehicle models, and the first applied technology currently being applied to autonomous vehicles is the Adaptive Cruise Control (ACC) system. Intelligent Forward Control is a system that maintains the distance from the vehicle in front or obstacles by adjusting the speed by itself without the driver operating the pedals based on radar guide technology. When the driver inputs the distance to the vehicle in front, the long-distance radar attached to the front of the vehicle detects the position of the vehicle in front, maintains a constant speed, decelerates or accelerates, and stops completely if necessary, which is useful in weather where visibility is difficult.

The fifth applied technology is the lane departure prevention system. This is a technology that notifies the driver of an unintentional departure situation by detecting the lane with a camera installed inside. In an autonomous vehicle, the vehicle can safely drive along the lane by distinguishing between the pedestrian and the center line.

The sixth application technology is the parking assistance system. This is a system that helps the car park in reverse by adjusting the steering system when the driver presses the brake pedal after searching for the assist button and inserts the reverse gear. By automatically guiding the vehicle from the departure point to the parking space based on infrastructure as well as vehicle-mounted sensors, it saves unnecessary time and energy when parking, thereby minimizing cost and environmental pollution.

The seventh application technology is the 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 succession. am.

The eighth application technology is a blind spot information guidance system. This is to warn the driver by judging whether there are other vehicles in the blind spot that cannot be seen through the side mirrors by sensors mounted on both sides of the car. .

The biggest advantage of an autonomous vehicle is that it helps fuel efficiency by avoiding repeated stops by making the adjustment device more even because the driving speed and traffic management data match. that there is In addition, it has the advantages of solving fatigue caused by long-term driving, greatly reducing the risk of traffic accidents, speeding up road traffic flow, and reducing traffic congestion.

However, when a plurality of autonomous driving vehicles are operated together, there is a risk that a sense of insensitivity to safety is generated as a whole. Accordingly, a guide for a new accident situation will be required while drawing the user's attention. However, research related to autonomous driving is insufficient.

[Prior art literature]

Korea Patent Publication No. 2019-00045511 (2019.05.03.)

SUMMARY OF THE INVENTION The present invention is to solve the problems of the prior art, and an object of the present invention is to provide an accident guidance system for an autonomous vehicle capable of flexibly notifying the occurrence of an accident ahead in the autonomous vehicle.

In one aspect of the present invention, an autonomous driving vehicle accident guidance system includes a plurality of autonomous driving vehicles and a control server communicating with the autonomous driving vehicle, wherein the control server includes a distance from the accident site when an autonomous driving vehicle accident occurs. transmit information to autonomous vehicles.

In this case, the sensor further includes a sensing unit, a control unit, and an output unit, wherein the sensing unit collects current location information of the autonomous vehicle, the control unit calculates a distance between the current location of the autonomous vehicle and the accident site, and the output unit is the According to the calculated distance, the indicator may be output to the inside or outside of the autonomous vehicle.

Also, the output unit may augment and output the indicator on the display inside the vehicle.

In addition, the indicator may change according to a distance difference between the location of the autonomous vehicle and the accident site.

In addition, the autonomous vehicle may further include a communication unit, and the communication unit may include a long-distance communication unit that communicates with the control server, and a short-range communication unit that initiates communication in an area adjacent to the accident site when the accident occurs.

In addition, the short-distance communication unit may communicate with an autonomous vehicle or a user terminal located in an adjacent area, and the communication details may be transmitted to the control server.

According to the present invention, other indicators are displayed as the autonomous vehicle approaches for an accident occurring in the front to draw the user's attention to promote safe driving.

In addition, the present invention activates a separate short-distance communication when it is close to the accident site, spreads it and monitors it, so as to do everything possible to manage the accident.

1 is a diagram illustrating the concept of an accident guidance system for an autonomous vehicle according to an embodiment of the present invention.
2 is a configuration diagram of an accident guidance system for an autonomous vehicle according to an embodiment of the present invention.
FIG. 3 is a configuration diagram illustrating the sensing unit of FIG. 2 in more detail.
FIG. 4 is a configuration diagram illustrating the communication unit of FIG. 2 in more detail.
FIG. 5 is a configuration diagram illustrating the road server in FIG. 2 in more detail.
6 is a diagram illustrating an indicator output from an autonomous vehicle according to an embodiment of the present invention.

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 implement them. Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, an accident guidance system 1000 of an autonomous vehicle according to an embodiment of the present invention will be described. 1 is a diagram illustrating the concept of an accident guidance system for an autonomous driving vehicle according to an embodiment of the present invention, FIG. 2 is a configuration diagram of an accident guidance system for an autonomous driving vehicle according to an embodiment of the present invention, and FIG. 3 is a configuration diagram showing the sensing unit in FIG. 2 in more detail, FIG. 4 is a configuration diagram showing the communication unit in FIG. 2 in more detail, and FIG. 5 is a configuration diagram showing the road server in FIG. 2 in more detail. It is also

First, referring to FIG. 1 , an accident guidance system 1000 of an autonomous driving vehicle according to an embodiment of the present invention includes a plurality of autonomous driving vehicles 100 and a control server 200 communicating with the autonomous driving vehicle 100 . includes

At this time, the control server 200 determines the accident location (C) when an accident of a specific autonomous driving vehicle occurs, and provides distance information to the accident location (C) to the autonomous driving vehicle 100 in which the user is currently riding. send

The autonomous driving vehicle 100 includes an output unit 110 , a sensing unit 120 , a communication unit 130 , and a control unit 140 . At this time, the output unit 110 outputs the accident location (C) and distance information to the accident location (C) transmitted by the control server 200 . At this time, the output unit 110 is formed inside or outside the autonomous vehicle and outputs an indicator according to the distance from the accident site. In this case, the indicator may be output in the form of an emoji.

That is, referring to FIG. 1 , an emoji of e1 is output for the autonomous vehicle located in the area a1 by reference sign, and the e2 image with a deformed shape is output in area a2 where the distance from the accident site C is closer. In the area adjacent to (C), it is output in the form of e3. That is, the indicator or emoji is changed according to the distance difference between the location of the autonomous vehicle and the accident site.

However, such an output is outputted in the form of augmented output even when one autonomous driving vehicle sees the second autonomous driving vehicle from the inside or outside the autonomous driving vehicle. That is, when a vehicle ahead of the road is viewed, information on how close another vehicle is to the accident point can be viewed through the windshield using an indicator or a separate emoji. Therefore, it is possible to immediately and emotionally grasp the current state of the accident site according to the distance.

In this case, the sensing unit 120 includes a radar 121 or a lidar 122 for autonomous driving, a GPS 124 essential for sharing location information, and further includes a camera 123 . can be done

The radar 121 refers to a device capable of moving unmanned while performing a radar detection operation by mounting an antenna in an autonomous vehicle. The radar 121 is not limited to performing only a radar detection operation using the provided antenna, and such as a plurality of sensors or complex sensors capable of sensing the surrounding environment, such as the lidar 122 and the camera 123 . It can be implemented in the form The radar 121 senses the surrounding environment to generate surrounding sensing information, and based on the surrounding sensing information, determines the road, other vehicles, people, and inanimate objects that exist in the driving direction based on the surrounding sensing information.

The lidar 122 is a device that precisely draws a surrounding state by emitting a laser pulse, receiving the light reflected from the surrounding target object, and measuring the distance to the object. The lidar 122 emits a laser pulse to the ground surface and measures the return time by analyzing the spatial location of the reflection point and surveying the topography. A difficult three-dimensional model can be obtained.

The lidar 122 is composed of a laser, a scanner, a receiver, and a positioning system, and the wavelength of the laser is 600-1000 nm. The scanner is the part that lets you quickly scan your surroundings to get information. The receiver is a part that detects the returning light, and the sensitivity of the receiver to the light is a major factor influencing the performance of the lidar. Essentially, the receiver detects photons and amplifies them. The positioning system performs a role of confirming the coordinates and direction of the location where the receiver is placed in order to implement a 3D image.

On the other hand, the communication unit 130 includes a long-distance communication unit 131 and a short-range communication unit 132 . The long-distance communication unit 131 serves to receive distance information from the control server 131 to the accident site, and the short-distance communication unit 132 initiates communication in an area adjacent to the accident site when an accident occurs.

That is, the short-distance communication unit 132 is normally turned off to prevent signal traffic, but when it is determined that it is located at or close to the accident site under the control of the control unit 140, it is turned on as soon as it is in the vicinity of the autonomous vehicle or the surrounding area. communication with the user terminal of Therefore, accident information on the road is propagated on the non-road without a server. However, in this case, the control server receives the propagated communication content together. Therefore, when an accident occurs, the control server predicts the extent of the related information expansion, so that it can be quickly replaced for handling accidents other than the road.

Hereinafter, an indicator output by the output unit according to an embodiment of the present invention will be described in more detail. 6 is a diagram illustrating an indicator output from an autonomous vehicle according to an embodiment of the present invention.

As described above, the indicator shown in FIG. 6 changes according to the distance from the accident site as shown in FIG. 1 . However, if an autonomous vehicle user uses a compatible mobile phone, it would be desirable to generate an emoji reflecting the user's voice and facial expression as it is. At this time, the generated emoji is output in the form of HUD (HEADUP DISPLAY) on the output unit, so that information delivery and communication with the user are possible in real time.

In addition, as shown in FIG. 6, when it is separated from the accident site, it is output to step (a) to convey a sense of calm to the user, and when it is close to the accident site, it is output to step (b) to encourage content recognition, and to In the case of a traffic accident, it is possible to further enhance the information delivery effect by outputting it to step (c).

As described above, preferred embodiments of the present invention have been disclosed in the present specification and drawings, and although specific terms are used, these are only used in a general sense to easily explain the technical content of the present invention and to help the understanding of the present invention. , it is not intended to limit the scope of the present invention. It will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications based on the technical spirit of the present invention can be implemented in addition to the embodiments disclosed herein.

1000: Accident guidance system of an autonomous vehicle
100: autonomous vehicle
110: output unit
120; sensing unit
121: radar
122: lidar
123: camera
124: GPS
130: communication department
131: telecommunication department
132: short-distance communication department
140: control unit
200: control server
210: traffic situation collection module
220: indicator transmission module
230: short-distance radio check module

Claims (6)

In the accident guidance system of an autonomous vehicle,
a plurality of autonomous vehicles; and
Including; a control server that communicates with the autonomous vehicle;
The control server transmits distance information from the accident site to the autonomous vehicle when an accident of the autonomous vehicle occurs,
The accident guidance system of the autonomous vehicle further includes a detection unit, a control unit, and an output unit, the detection unit collects current location information of the autonomous vehicle, and the control unit determines the distance between the current location of the autonomous vehicle and the accident site and the output unit outputs an indicator to the inside or outside of the autonomous vehicle according to the calculated distance, but the indicator is also displayed according to the distance difference between the location of the autonomous vehicle other than the current autonomous vehicle and the location of the accident An accident guidance system of an autonomous vehicle, characterized in that it is changed.
delete According to claim 1,
The accident guidance system of an autonomous vehicle, characterized in that the output unit augments and outputs the indicator on a display inside the vehicle.
delete According to claim 1,
The autonomous vehicle further includes a communication unit,
The communication unit includes a long-distance communication unit that communicates with the control server, and a short-distance communication unit that initiates communication in an area adjacent to the accident site when the accident occurs.
6. The method of claim 5,
The short-distance communication unit communicates with an autonomous vehicle or a user terminal located in an adjacent area, and the control server transmits the communication details.

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